/* ============================================
   ACETEST — GLOBAL STYLES
   ============================================ */

:root {
  --black: #000000;
  --white: #ffffff;
  --grey-50: #f9f9f9;
  --grey-100: #f2f2f2;
  --grey-200: #e8e8e8;
  --grey-300: #d4d4d4;
  --grey-400: #a0a0a0;
  --grey-500: #717171;
  --grey-600: #444444;
  --grey-700: #2a2a2a;
  --grey-800: #1a1a1a;
  --grey-900: #111111;
  --font-serif: 'Instrument Serif', Georgia, serif;
  --font-sans: 'Manrope', system-ui, sans-serif;
  --nav-height: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.16);
  --transition: 0.2s ease;
}

/* ============================================
   RESET
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
body { font-family: var(--font-sans); background: var(--white); color: var(--black); line-height: 1.6; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-sans); }
input, textarea, select { font-family: var(--font-sans); }
h1, h2, h3, h4, h5, h6 { line-height: 1.15; letter-spacing: -0.02em; }

/* ============================================
   NAVBAR
   ============================================ */

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: var(--black);
  z-index: 1000;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo { display: flex; align-items: center; gap: 10px; }

.logo-diamond {
  width: 16px; height: 16px;
  background: var(--white);
  transform: rotate(45deg);
  flex-shrink: 0;
  border-radius: 2px;
  display: block;
}

.logo-text { font-weight: 700; font-size: 17px; color: var(--white); letter-spacing: -0.03em; }

.nav-actions { display: flex; align-items: center; gap: 8px; }

.nav-links { display: flex; align-items: center; gap: 4px; }

.nav-link {
  font-size: 14px; font-weight: 600;
  color: rgba(255,255,255,0.6);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-link:hover { color: var(--white); background: rgba(255,255,255,0.08); }
.nav-link.active { color: var(--white); background: rgba(255,255,255,0.12); }

.nav-avatar {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 800; color: var(--white);
  cursor: pointer;
  border: 1.5px solid rgba(255,255,255,0.2);
  letter-spacing: 0;
  text-transform: uppercase;
}

.nav-avatar-wrap { position: relative; }

.nav-dropdown {
  position: absolute;
  top: calc(100% + 10px); right: 0;
  background: var(--white);
  border: 1.5px solid var(--grey-200);
  border-radius: 14px;
  box-shadow: var(--shadow-xl);
  min-width: 210px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px);
  transition: all 0.2s ease;
  z-index: 500;
}

.nav-dropdown.open { opacity: 1; pointer-events: all; transform: translateY(0); }

.nav-dropdown-header { padding: 14px 16px 12px; border-bottom: 1px solid var(--grey-100); }
.nav-dropdown-name { font-size: 14px; font-weight: 700; color: var(--black); margin-bottom: 2px; letter-spacing: -0.01em; }
.nav-dropdown-plan { font-size: 12px; color: var(--grey-500); font-weight: 500; }
.nav-dropdown-divider { height: 1px; background: var(--grey-100); }

.nav-dropdown-item {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 16px;
  font-size: 13px; font-weight: 600; color: var(--black);
  transition: background var(--transition);
  cursor: pointer; width: 100%; text-align: left;
  background: none; border: none; font-family: var(--font-sans);
}

.nav-dropdown-item:hover { background: var(--grey-50); }
.nav-dropdown-item svg { color: var(--grey-500); flex-shrink: 0; }
.nav-dropdown-upgrade { color: var(--black); font-weight: 700; }
.nav-dropdown-logout { color: #dc2626; }
.nav-dropdown-logout svg { color: #dc2626; }

/* ============================================
   BUTTONS
   ============================================ */

.btn-ghost {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 8px 18px;
  font-weight: 600; font-size: 14px; color: var(--white);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.btn-ghost:hover { background: rgba(255,255,255,0.1); }

.btn-solid {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 8px 18px;
  font-weight: 700; font-size: 14px;
  background: var(--white); color: var(--black);
  border-radius: var(--radius-sm);
  border: 2px solid var(--white);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-solid:hover { background: var(--grey-200); border-color: var(--grey-200); }

.auth-split-right .btn-solid,
.page-wrapper .btn-solid,
.modal .btn-solid,
.onboarding-container .btn-solid,
.db-card .btn-solid {
  background: var(--black); color: var(--white); border-color: var(--black);
}

.auth-split-right .btn-solid:hover,
.page-wrapper .btn-solid:hover,
.modal .btn-solid:hover,
.onboarding-container .btn-solid:hover,
.db-card .btn-solid:hover {
  background: var(--grey-800); border-color: var(--grey-800);
}

.btn-outline {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 8px 18px;
  font-weight: 700; font-size: 14px;
  background: transparent; color: var(--black);
  border-radius: var(--radius-sm);
  border: 2px solid var(--black);
  transition: all var(--transition);
  cursor: pointer;
}

.btn-outline:hover { background: var(--black); color: var(--white); }

.btn-large { padding: 14px 28px; font-size: 15px; border-radius: var(--radius-md); }
.btn-full { width: 100%; }

.btn-white {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 32px;
  font-weight: 700; font-size: 15px;
  background: var(--white); color: var(--black);
  border-radius: var(--radius-md);
  border: 2px solid var(--white);
  transition: all var(--transition); cursor: pointer;
}

.btn-white:hover { background: transparent; color: var(--white); }

.btn-auth {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px;
  font-size: 15px; font-weight: 700;
  background: var(--black); color: var(--white);
  border: 2px solid var(--black);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  min-height: 50px;
  font-family: var(--font-sans);
  width: 100%;
}

.btn-auth:hover { background: var(--grey-800); border-color: var(--grey-800); }
.btn-auth:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-loader {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   SECTIONS
   ============================================ */

.section-inner { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.section-label {
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.12em; color: var(--grey-500);
  margin-bottom: 12px; text-transform: uppercase;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 400; color: var(--black);
  margin-bottom: 40px;
  letter-spacing: -0.02em; line-height: 1.15;
}

/* ============================================
   HERO
   ============================================ */

.hero {
  padding-top: calc(var(--nav-height) + 72px);
  padding-bottom: 64px;
  background: var(--white);
  text-align: center;
}

.hero-inner { max-width: 760px; margin: 0 auto; padding: 0 20px; }

.hero-badge {
  display: inline-flex; align-items: center;
  padding: 6px 16px;
  background: var(--grey-100);
  border: 1px solid var(--grey-300);
  border-radius: 100px;
  font-size: 12px; font-weight: 600; color: var(--grey-700);
  letter-spacing: 0.02em; margin-bottom: 28px;
  opacity: 0; transform: translateY(10px);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(38px, 7vw, 76px);
  font-weight: 400; color: var(--black);
  line-height: 1.05; letter-spacing: -0.03em;
  margin-bottom: 20px;
  display: flex; flex-direction: column;
}

.hero-line { display: block; }

/* Bold lines */
.hero-line-bold {
  display: block;
  font-weight: 700;
}

.hero-title em { font-style: italic; color: var(--grey-700); font-weight: 400; }

.hero-sub {
  font-size: 16px; color: var(--grey-600);
  margin-bottom: 36px; line-height: 1.6;
  max-width: 440px; margin-left: auto; margin-right: auto;
  opacity: 0; transform: translateY(10px);
}

.hero-ctas {
  display: flex; align-items: center; justify-content: center;
  gap: 12px; flex-wrap: wrap;
  opacity: 0; transform: translateY(10px);
}

/* ============================================
   MARQUEE
   ============================================ */

.marquee-strip {
  background: var(--black);
  overflow: hidden; padding: 12px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.marquee-track {
  display: flex; align-items: center;
  animation: marquee 30s linear infinite;
  width: max-content;
}

.marquee-track span {
  font-size: 12px; font-weight: 700;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.1em; padding: 0 20px; white-space: nowrap;
}

.marquee-dot {
  width: 4px !important; height: 4px !important;
  background: rgba(255,255,255,0.2) !important;
  border-radius: 50% !important; padding: 0 !important;
  display: inline-block; flex-shrink: 0;
}

@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ============================================
   STATS BAR
   ============================================ */

.stats-bar {
  background: var(--black);
  padding: 28px 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.stats-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: center;
  flex-wrap: nowrap; overflow-x: auto;
  -webkit-overflow-scrolling: touch; scrollbar-width: none;
}

.stats-inner::-webkit-scrollbar { display: none; }
.stat-item { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 8px 32px; flex-shrink: 0; }
.stat-number { font-family: var(--font-serif); font-size: clamp(22px,3vw,28px); font-weight: 400; color: var(--white); letter-spacing: -0.02em; }
.stat-label { font-size: 11px; font-weight: 500; color: rgba(255,255,255,0.45); letter-spacing: 0.02em; white-space: nowrap; }
.stat-divider { width: 1px; height: 36px; background: rgba(255,255,255,0.1); flex-shrink: 0; }

/* ============================================
   HOW IT WORKS
   ============================================ */

.how-it-works { padding: 88px 0; background: var(--white); }
.steps-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }

.step-card {
  background: var(--grey-50);
  border: 1.5px solid var(--grey-200);
  border-radius: var(--radius-xl); padding: 36px 28px;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}

.step-card::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: var(--black);
  transform: scaleX(0); transition: transform var(--transition); transform-origin: left;
}

.step-card:hover::before { transform: scaleX(1); }
.step-card:hover { border-color: var(--grey-300); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.step-number { font-family: var(--font-serif); font-size: 44px; font-weight: 400; color: var(--grey-200); line-height: 1; margin-bottom: 20px; letter-spacing: -0.03em; }
.step-title { font-size: 17px; font-weight: 700; color: var(--black); margin-bottom: 10px; letter-spacing: -0.02em; }
.step-desc { font-size: 14px; color: var(--grey-600); line-height: 1.65; }

/* ============================================
   POPULAR MATERIALS
   ============================================ */

.popular-section { padding: 88px 0; background: var(--grey-50); border-top: 1px solid var(--grey-200); border-bottom: 1px solid var(--grey-200); }
.materials-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; margin-bottom: 36px; }

.material-card {
  background: var(--white); border: 1.5px solid var(--grey-200);
  border-radius: var(--radius-lg); padding: 22px;
  transition: all var(--transition); cursor: pointer;
}

.material-card:hover { border-color: var(--grey-400); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-top { display: flex; align-items: center; gap: 6px; margin-bottom: 14px; flex-wrap: wrap; }
.dept-tag { display: inline-flex; padding: 3px 9px; background: var(--black); color: var(--white); font-size: 10px; font-weight: 700; letter-spacing: 0.06em; border-radius: 4px; text-transform: uppercase; }
.school-tag { display: inline-flex; padding: 3px 9px; background: var(--grey-200); color: var(--grey-700); font-size: 10px; font-weight: 700; letter-spacing: 0.05em; border-radius: 4px; text-transform: uppercase; }
.card-title { font-size: 15px; font-weight: 700; color: var(--black); margin-bottom: 6px; letter-spacing: -0.02em; line-height: 1.3; }
.card-meta { font-size: 12px; color: var(--grey-500); margin-bottom: 16px; }
.card-footer { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; border-top: 1px solid var(--grey-100); }
.card-attempts { font-size: 12px; color: var(--grey-600); font-weight: 500; }
.card-rating { font-size: 12px; color: var(--grey-800); font-weight: 700; }
.view-more-wrap { text-align: center; }
.empty-materials { text-align: center; color: var(--grey-500); font-size: 15px; padding: 40px; grid-column: 1/-1; }

/* ============================================
   SKELETON
   ============================================ */

.material-card.skeleton { pointer-events: none; }

.skeleton-tag, .skeleton-title, .skeleton-meta,
.skeleton-footer, .skeleton-block {
  background: linear-gradient(90deg, var(--grey-100) 25%, var(--grey-200) 50%, var(--grey-100) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
  display: block;
}

.skeleton-tag { width: 80px; height: 18px; margin-bottom: 14px; }
.skeleton-title { width: 100%; height: 18px; margin-bottom: 8px; }
.skeleton-meta { width: 55%; height: 13px; margin-bottom: 20px; }
.skeleton-footer { width: 100%; height: 13px; }

@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ============================================
   FEATURES
   ============================================ */

.features-section { padding: 88px 0; background: var(--white); }
.features-grid { display: grid; grid-template-columns: repeat(3,1fr); border: 1.5px solid var(--grey-200); border-radius: var(--radius-xl); overflow: hidden; }
.feature-item { padding: 36px 28px; background: var(--white); border-right: 1px solid var(--grey-200); border-bottom: 1px solid var(--grey-200); transition: background var(--transition); }
.feature-item:hover { background: var(--grey-50); }
.feature-item:nth-child(3n) { border-right: none; }
.feature-item:nth-child(n+4) { border-bottom: none; }
.feature-icon { width: 40px; height: 40px; background: var(--black); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: var(--white); margin-bottom: 18px; }
.feature-title { font-size: 15px; font-weight: 700; color: var(--black); margin-bottom: 8px; letter-spacing: -0.02em; }
.feature-desc { font-size: 13px; color: var(--grey-600); line-height: 1.65; }

/* ============================================
   PRICING
   ============================================ */

.pricing-preview { padding: 88px 0; background: var(--grey-50); border-top: 1px solid var(--grey-200); }
.pricing-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; align-items: start; }

.pricing-card { background: var(--white); border: 1.5px solid var(--grey-300); border-radius: var(--radius-xl); padding: 32px 28px; transition: all var(--transition); position: relative; }
.pricing-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }

.pricing-card-featured { background: var(--black); border-color: var(--black); transform: translateY(-8px); }
.pricing-card-featured:hover { transform: translateY(-12px); }

.pricing-card-ultra { background: var(--grey-900); border-color: var(--grey-700); }
.pricing-card-ultra:hover { transform: translateY(-4px); border-color: var(--grey-500); }
.pricing-card-ultra .plan-name, .pricing-card-ultra .plan-price { color: var(--white); }
.pricing-card-ultra .plan-price span { color: rgba(255,255,255,0.45); }
.pricing-card-ultra .plan-features li { color: rgba(255,255,255,0.7); }
.pricing-card-ultra .plan-features li::before { background: rgba(255,255,255,0.5); }
.pricing-card-ultra .btn-solid { background: var(--white); color: var(--black); border-color: var(--white); }
.pricing-card-ultra .btn-solid:hover { background: var(--grey-200); border-color: var(--grey-200); color: var(--black); }

.featured-badge { display: inline-flex; padding: 3px 10px; background: var(--white); color: var(--black); font-size: 10px; font-weight: 800; letter-spacing: 0.08em; border-radius: 100px; margin-bottom: 16px; text-transform: uppercase; }
.plan-name { font-size: 20px; font-weight: 800; color: var(--black); margin-bottom: 6px; letter-spacing: -0.03em; }
.pricing-card-featured .plan-name { color: var(--white); }
.plan-price { font-family: var(--font-serif); font-size: 32px; color: var(--black); margin-bottom: 24px; letter-spacing: -0.03em; line-height: 1; }
.plan-price span { font-family: var(--font-sans); font-size: 13px; color: var(--grey-500); font-weight: 500; }
.pricing-card-featured .plan-price { color: var(--white); }
.pricing-card-featured .plan-price span { color: rgba(255,255,255,0.45); }
.plan-features { margin-bottom: 28px; display: flex; flex-direction: column; gap: 10px; }
.plan-features li { font-size: 13px; color: var(--grey-700); padding-left: 18px; position: relative; line-height: 1.4; }
.plan-features li::before { content: ''; position: absolute; left: 0; top: 6px; width: 6px; height: 6px; background: var(--black); border-radius: 50%; }
.pricing-card-featured .plan-features li { color: rgba(255,255,255,0.75); }
.pricing-card-featured .plan-features li::before { background: var(--white); }
.pricing-card-featured .btn-solid { background: var(--white); color: var(--black); border-color: var(--white); }
.pricing-card-featured .btn-solid:hover { background: var(--grey-200); border-color: var(--grey-200); color: var(--black); }

/* ============================================
   CTA BANNER
   ============================================ */

.cta-banner { background: var(--black); padding: 88px 20px; text-align: center; }
.cta-inner { max-width: 560px; margin: 0 auto; }
.cta-title { font-family: var(--font-serif); font-size: clamp(28px,5vw,48px); font-weight: 400; color: var(--white); margin-bottom: 14px; letter-spacing: -0.02em; }
.cta-sub { font-size: 15px; color: rgba(255,255,255,0.55); margin-bottom: 32px; }

/* ============================================
   FOOTER
   ============================================ */

.footer { background: var(--grey-900); padding: 56px 20px 0; }
.footer-inner { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.07); flex-wrap: wrap; }
.footer-left { max-width: 260px; }
.footer-left .logo-text { color: var(--white); }
.footer-tagline { font-size: 13px; color: rgba(255,255,255,0.35); line-height: 1.6; margin-top: 14px; }
.footer-links { display: flex; gap: 40px; flex-wrap: wrap; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col-title { font-size: 11px; font-weight: 700; color: var(--white); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 4px; }
.footer-col a { font-size: 13px; color: rgba(255,255,255,0.4); transition: color var(--transition); }
.footer-col a:hover { color: var(--white); }
.footer-bottom { max-width: 1200px; margin: 0 auto; padding: 20px 0; }
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,0.2); }

/* ============================================
   ANIMATIONS
   ============================================ */

.fade-up { opacity: 0; transform: translateY(20px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ============================================
   MODAL
   ============================================ */

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.active { opacity: 1; pointer-events: all; }

.modal {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  max-width: 460px; width: 100%;
  box-shadow: var(--shadow-xl);
  transform: translateY(12px);
  transition: transform var(--transition);
}

.modal-overlay.active .modal { transform: translateY(0); }
.modal-title { font-family: var(--font-serif); font-size: 24px; font-weight: 400; color: var(--black); margin-bottom: 10px; letter-spacing: -0.02em; }
.modal-desc { font-size: 14px; color: var(--grey-600); margin-bottom: 24px; line-height: 1.6; }
.modal-actions { display: flex; gap: 10px; }

/* ============================================
   FORMS
   ============================================ */

.form-group { margin-bottom: 18px; }

.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--grey-800); margin-bottom: 7px; letter-spacing: -0.01em; }

.form-input {
  width: 100%; padding: 12px 14px;
  font-size: 15px; font-family: var(--font-sans);
  color: var(--black); background: var(--white);
  border: 1.5px solid var(--grey-300);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none; -webkit-appearance: none;
}

.form-input:focus { border-color: var(--black); box-shadow: 0 0 0 3px rgba(0,0,0,0.06); }
.form-input::placeholder { color: var(--grey-400); }
.form-input.error { border-color: #dc2626; }
.form-error { font-size: 12px; color: #dc2626; margin-top: 5px; font-weight: 500; display: block; min-height: 16px; }
.form-hint { font-size: 12px; color: var(--grey-500); margin-top: 5px; }

.form-label-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 7px; }
.form-label-row .form-label { margin-bottom: 0; }
.forgot-link { font-size: 13px; color: var(--grey-600); font-weight: 500; transition: color var(--transition); }
.forgot-link:hover { color: var(--black); }

.form-check { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; }
.form-check input[type="checkbox"] { width: 16px; height: 16px; margin-top: 2px; accent-color: var(--black); flex-shrink: 0; cursor: pointer; }
.form-check-label { font-size: 13px; color: var(--grey-600); line-height: 1.5; }
.form-check-label a { color: var(--black); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }

/* ============================================
   AUTH SPLIT
   ============================================ */

.auth-split-page { min-height: 100vh; padding-top: var(--nav-height); display: flex; }

.auth-split-left {
  width: 420px; flex-shrink: 0;
  background: var(--black);
  display: flex; align-items: flex-end;
  padding: 48px 40px;
  position: sticky; top: var(--nav-height);
  height: calc(100vh - var(--nav-height));
}

.auth-split-left-inner { width: 100%; }
.auth-split-quote { margin-bottom: 40px; }
.auth-split-quote-text { font-family: var(--font-serif); font-size: 22px; font-weight: 400; color: var(--white); line-height: 1.45; font-style: italic; }
.auth-split-stats { display: flex; gap: 32px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.1); }
.auth-split-stat { display: flex; flex-direction: column; gap: 4px; }
.auth-split-stat-num { font-family: var(--font-serif); font-size: 24px; color: var(--white); letter-spacing: -0.02em; }
.auth-split-stat-label { font-size: 12px; color: rgba(255,255,255,0.4); font-weight: 500; }

.auth-split-right {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  padding: 48px 24px;
  background: var(--grey-50);
  overflow-y: auto;
}

.auth-container {
  width: 100%; max-width: 420px;
  background: var(--white);
  border: 1.5px solid var(--grey-200);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
  box-shadow: var(--shadow-lg);
}

.auth-header { margin-bottom: 28px; }
.auth-title { font-family: var(--font-serif); font-size: 28px; font-weight: 400; color: var(--black); letter-spacing: -0.02em; margin-bottom: 6px; }
.auth-subtitle { font-size: 14px; color: var(--grey-600); line-height: 1.5; }

.auth-error-banner {
  display: flex; align-items: center; gap: 10px;
  background: #fef2f2; border: 1px solid #fecaca;
  border-radius: var(--radius-md); padding: 11px 14px;
  margin-bottom: 18px; font-size: 13px; color: #dc2626; font-weight: 500;
}

.auth-form { display: flex; flex-direction: column; }
.auth-switch { text-align: center; font-size: 13px; color: var(--grey-600); margin-top: 20px; }
.auth-switch a { color: var(--black); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.auth-support { text-align: center; font-size: 12px; color: var(--grey-500); margin-top: 10px; }
.auth-support a { color: var(--grey-600); font-weight: 600; transition: color var(--transition); }
.auth-support a:hover { color: var(--black); }

.phone-input-wrap {
  display: flex; align-items: center;
  border: 1.5px solid var(--grey-300);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.phone-input-wrap:focus-within { border-color: var(--black); box-shadow: 0 0 0 3px rgba(0,0,0,0.06); }
.phone-prefix { padding: 12px 12px; background: var(--grey-100); border-right: 1.5px solid var(--grey-300); font-size: 14px; font-weight: 700; color: var(--grey-700); white-space: nowrap; flex-shrink: 0; }
.phone-input { border: none !important; border-radius: 0 !important; box-shadow: none !important; flex: 1; }
.phone-input:focus { border: none !important; box-shadow: none !important; }

.password-input-wrap { position: relative; }
.password-input-wrap .form-input { padding-right: 46px; }
.password-toggle { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); color: var(--grey-400); display: flex; align-items: center; justify-content: center; transition: color var(--transition); background: none; border: none; cursor: pointer; padding: 4px; }
.password-toggle:hover { color: var(--black); }

/* Demo button */
.demo-divider { display: flex; align-items: center; gap: 12px; margin: 18px 0; }
.demo-divider::before, .demo-divider::after { content: ''; flex: 1; height: 1px; background: var(--grey-200); }
.demo-divider span { font-size: 11px; color: var(--grey-400); font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; }

.btn-demo { width: 100%; padding: 13px; font-family: var(--font-sans); font-size: 14px; font-weight: 700; color: var(--black); background: var(--grey-50); border: 1.5px solid var(--grey-300); border-radius: var(--radius-md); cursor: pointer; transition: all var(--transition); }
.btn-demo:hover { background: var(--grey-100); border-color: var(--grey-400); }

/* ============================================
   SIGNUP STEPS
   ============================================ */

.signup-container { max-width: 460px; }
.signup-steps { display: flex; align-items: center; justify-content: center; margin-bottom: 32px; }
.signup-step { display: flex; flex-direction: column; align-items: center; gap: 5px; }
.step-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--grey-300); transition: all var(--transition); display: block; }
.signup-step.active .step-dot { background: var(--black); transform: scale(1.3); }
.signup-step.done .step-dot { background: var(--black); }
.step-label { font-size: 10px; font-weight: 700; color: var(--grey-400); letter-spacing: 0.04em; text-transform: uppercase; }
.signup-step.active .step-label { color: var(--black); }
.signup-step.done .step-label { color: var(--grey-600); }
.step-line { flex: 1; height: 1.5px; background: var(--grey-200); margin: 0 6px 14px; min-width: 32px; }

.otp-input-group { display: flex; gap: 8px; justify-content: center; }
.otp-input { width: 44px; height: 52px; text-align: center; font-size: 20px; font-weight: 700; font-family: var(--font-sans); color: var(--black); background: var(--white); border: 1.5px solid var(--grey-300); border-radius: var(--radius-md); outline: none; transition: border-color var(--transition), box-shadow var(--transition); }
.otp-input:focus { border-color: var(--black); box-shadow: 0 0 0 3px rgba(0,0,0,0.06); }

.otp-resend { text-align: center; margin-top: 16px; font-size: 13px; color: var(--grey-500); }
.resend-btn { background: none; border: none; color: var(--black); font-weight: 700; font-size: 13px; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; font-family: var(--font-sans); }
.back-btn { display: block; margin: 14px auto 0; background: none; border: none; color: var(--grey-500); font-size: 13px; font-weight: 600; cursor: pointer; font-family: var(--font-sans); transition: color var(--transition); }
.back-btn:hover { color: var(--black); }

.searchable-select { position: relative; }
.searchable-dropdown { position: absolute; top: calc(100% + 4px); left: 0; right: 0; background: var(--white); border: 1.5px solid var(--grey-300); border-radius: var(--radius-md); max-height: 200px; overflow-y: auto; z-index: 100; box-shadow: var(--shadow-lg); display: none; }
.dropdown-item { padding: 10px 14px; font-size: 13px; color: var(--grey-700); cursor: pointer; transition: background var(--transition); border-bottom: 1px solid var(--grey-100); }
.dropdown-item:last-child { border-bottom: none; }
.dropdown-item:hover { background: var(--grey-50); color: var(--black); }

/* Other university field */
.other-university-wrap { margin-top: 10px; display: none; }
.other-university-wrap.show { display: block; }

/* ============================================
   TOAST
   ============================================ */

.toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 3000; display: flex; flex-direction: column; gap: 8px; }
.toast { display: flex; align-items: center; gap: 10px; padding: 12px 18px; background: var(--black); color: var(--white); border-radius: var(--radius-md); font-size: 13px; font-weight: 500; box-shadow: var(--shadow-xl); transform: translateX(120%); transition: transform 0.3s ease; max-width: 340px; }
.toast.show { transform: translateX(0); }
.toast.success { background: #16a34a; }
.toast.error { background: #dc2626; }

/* ============================================
   PAGE WRAPPER
   ============================================ */

.page-wrapper { padding-top: var(--nav-height); min-height: 100vh; }
.page-title { font-family: var(--font-serif); font-size: clamp(24px,4vw,38px); font-weight: 400; color: var(--black); letter-spacing: -0.02em; margin-bottom: 6px; }
.page-subtitle { font-size: 14px; color: var(--grey-600); }

/* ============================================
   UPGRADE MODAL
   ============================================ */

.upgrade-plans { display: flex; flex-direction: column; gap: 10px; margin-bottom: 18px; }
.upgrade-plan-option { border: 1.5px solid var(--grey-300); border-radius: var(--radius-md); padding: 14px 18px; cursor: pointer; transition: all var(--transition); display: flex; justify-content: space-between; align-items: center; }
.upgrade-plan-option:hover { border-color: var(--black); }
.upgrade-plan-option.selected { border-color: var(--black); background: var(--grey-50); }
.upgrade-plan-name { font-weight: 700; font-size: 14px; color: var(--black); }
.upgrade-plan-price { font-weight: 600; font-size: 13px; color: var(--grey-600); }

/* ============================================
   BANNERS
   ============================================ */

.trial-banner { background: var(--grey-900); border-bottom: 1px solid rgba(255,255,255,0.07); }
.demo-banner { background: var(--grey-800); border-bottom: 1px solid rgba(255,255,255,0.07); }

.trial-banner-inner, .demo-banner-inner {
  max-width: 1200px; margin: 0 auto;
  padding: 10px 20px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; flex-wrap: wrap;
}

.trial-banner-inner span, .demo-banner-inner span { font-size: 13px; color: rgba(255,255,255,0.65); }
.trial-banner-inner strong { color: var(--white); }

.trial-banner-btn { font-size: 12px; font-weight: 700; color: var(--white); background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.18); padding: 5px 14px; border-radius: var(--radius-sm); transition: all var(--transition); white-space: nowrap; }
.trial-banner-btn:hover { background: rgba(255,255,255,0.22); }

/* Maintenance banner */
.maintenance-banner { background: #7c3aed; border-bottom: 1px solid rgba(255,255,255,0.1); }
.maintenance-banner-inner { max-width: 1200px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; justify-content: center; gap: 10px; }
.maintenance-banner-inner span { font-size: 13px; color: rgba(255,255,255,0.9); font-weight: 500; text-align: center; }

/* ============================================
   WHATSAPP FAB — BOTTOM LEFT
   ============================================ */

.support-fab {
  position: fixed;
  bottom: 24px;
  left: 24px;
  width: 52px; height: 52px;
  background: #25D366; color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(37,211,102,0.4);
  transition: all var(--transition); z-index: 999;
}

.support-fab:hover { transform: scale(1.08); box-shadow: 0 6px 24px rgba(37,211,102,0.5); }

/* ============================================
   DASHBOARD — PANZE STYLE
   ============================================ */

.db-outer { max-width: 1080px; margin: 0 auto; padding: 40px 24px 56px; }
.db-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 28px; gap: 16px; flex-wrap: wrap; }
.db-greeting-label { font-size: 13px; font-weight: 500; color: var(--grey-500); margin-bottom: 2px; }
.db-greeting-name { font-family: var(--font-serif); font-size: clamp(24px,3vw,34px); font-weight: 400; color: var(--black); letter-spacing: -0.02em; line-height: 1.1; }

.db-time-tabs { display: flex; background: var(--grey-100); border-radius: 10px; padding: 3px; gap: 2px; }
.db-time-tab { padding: 7px 14px; font-size: 13px; font-weight: 600; color: var(--grey-500); background: transparent; border: none; border-radius: 8px; cursor: pointer; transition: all var(--transition); font-family: var(--font-sans); white-space: nowrap; }
.db-time-tab.active { background: var(--black); color: var(--white); }
.db-time-tab:hover:not(.active) { color: var(--black); }

.db-grid { display: grid; grid-template-columns: 1fr 320px; gap: 28px; align-items: start; }

.db-card { background: var(--white); border: 1px solid var(--grey-200); border-radius: 18px; padding: 26px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); margin-bottom: 16px; }
.db-card:last-child { margin-bottom: 0; }
.db-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.db-card-title { font-size: 15px; font-weight: 700; color: var(--black); letter-spacing: -0.02em; }
.db-card-action { font-size: 12px; font-weight: 600; color: var(--grey-500); transition: color var(--transition); }
.db-card-action:hover { color: var(--black); }

.db-stat-cards { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin-bottom: 16px; }
.db-stat-card { background: var(--white); border: 1px solid var(--grey-200); border-radius: 16px; padding: 20px 18px; box-shadow: 0 1px 4px rgba(0,0,0,0.04); }
.db-stat-black { background: var(--black); }
.db-stat-label { font-size: 11px; font-weight: 700; color: var(--grey-500); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 10px; }
.db-stat-black .db-stat-label { color: rgba(255,255,255,0.5); }
.db-stat-value { font-family: var(--font-serif); font-size: 40px; color: var(--black); line-height: 1; letter-spacing: -0.03em; margin-bottom: 2px; }
.db-stat-black .db-stat-value { color: var(--white); }
.db-stat-unit { font-size: 12px; color: var(--grey-400); font-weight: 500; margin-bottom: 10px; }
.db-stat-black .db-stat-unit { color: rgba(255,255,255,0.4); }
.db-stat-sub { font-size: 11px; color: rgba(255,255,255,0.5); font-weight: 500; }

.activity-legend { display: flex; align-items: center; gap: 5px; }
.legend-label { font-size: 10px; color: var(--grey-400); }
.legend-squares { display: flex; gap: 3px; }
.legend-sq { width: 10px; height: 10px; border-radius: 2px; }
.activity-grid-wrap { overflow-x: auto; }
.activity-grid { display: flex; gap: 3px; min-width: max-content; }
.ac-col { display: flex; flex-direction: column; gap: 3px; }
.ac-cell { width: 12px; height: 12px; border-radius: 2px; transition: opacity var(--transition); flex-shrink: 0; }
.ac-cell:hover { opacity: 0.7; }

.db-mat-list { display: flex; flex-direction: column; gap: 2px; }
.db-mat-item { display: flex; align-items: center; gap: 12px; padding: 12px 12px; border-radius: 12px; transition: background var(--transition); border: 1px solid transparent; }
.db-mat-item:hover { background: var(--grey-50); border-color: var(--grey-200); }
.db-mat-icon { width: 40px; height: 40px; background: var(--grey-100); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--grey-500); flex-shrink: 0; }
.db-mat-info { flex: 1; min-width: 0; }
.db-mat-title { font-size: 13px; font-weight: 600; color: var(--black); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 4px; letter-spacing: -0.01em; }
.db-mat-meta { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--grey-500); }

.mat-status { font-size: 10px; font-weight: 700; padding: 2px 7px; border-radius: 100px; }
.mat-status-ready { background: #dcfce7; color: #16a34a; }
.mat-status-processing { background: #fef9c3; color: #ca8a04; }
.mat-status-failed { background: #fee2e2; color: #dc2626; }

.db-empty { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 36px 16px; gap: 10px; }
.db-empty-icon { width: 56px; height: 56px; background: var(--grey-100); border-radius: 14px; display: flex; align-items: center; justify-content: center; color: var(--grey-400); margin-bottom: 4px; }
.db-empty-title { font-size: 16px; font-weight: 700; color: var(--black); letter-spacing: -0.02em; }
.db-empty-desc { font-size: 13px; color: var(--grey-500); line-height: 1.6; max-width: 260px; }

.db-plan-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 18px; }
.db-plan-label { font-size: 10px; font-weight: 700; color: var(--grey-500); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 3px; }
.db-plan-name { font-size: 18px; font-weight: 800; color: var(--black); letter-spacing: -0.02em; }
.db-plan-badge { font-size: 10px; font-weight: 800; letter-spacing: 0.06em; padding: 3px 9px; background: var(--black); color: var(--white); border-radius: 100px; }
.db-limits { display: flex; flex-direction: column; gap: 12px; margin-bottom: 18px; }
.db-limit-item { display: flex; flex-direction: column; gap: 5px; }
.db-limit-row { display: flex; justify-content: space-between; align-items: center; }
.db-limit-label { font-size: 12px; font-weight: 600; color: var(--grey-600); }
.db-limit-count { font-size: 11px; color: var(--grey-500); font-weight: 500; }
.db-limit-bar { height: 5px; background: var(--grey-200); border-radius: 100px; overflow: hidden; }
.db-limit-fill { height: 100%; background: var(--black); border-radius: 100px; transition: width 0.6s ease; }

.db-actions { display: flex; flex-direction: column; gap: 2px; }
.db-action-item { display: flex; align-items: center; gap: 10px; padding: 10px 10px; border-radius: 10px; transition: background var(--transition); cursor: pointer; }
.db-action-item:hover { background: var(--grey-50); }
.db-action-icon { width: 32px; height: 32px; background: var(--grey-100); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: var(--grey-600); flex-shrink: 0; }
.db-action-item span { flex: 1; font-size: 13px; font-weight: 600; color: var(--black); letter-spacing: -0.01em; }
.db-action-arrow { color: var(--grey-400); }

.db-scores-empty { font-size: 13px; color: var(--grey-500); line-height: 1.5; }
.db-score-item { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--grey-100); gap: 10px; }
.db-score-item:last-child { border-bottom: none; }
.db-score-title { font-size: 13px; font-weight: 600; color: var(--black); margin-bottom: 2px; letter-spacing: -0.01em; }
.db-score-date { font-size: 11px; color: var(--grey-400); }
.db-score-val { font-size: 15px; font-weight: 800; letter-spacing: -0.02em; flex-shrink: 0; }
.score-good { color: #16a34a; }
.score-mid { color: #ca8a04; }
.score-low { color: #dc2626; }

/* ============================================
   QUIZ — DARK THEME
   ============================================ */

.quiz-dark-body { background: #0f0f0f; min-height: 100vh; color: var(--white); }

.qz-header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(15,15,15,0.95); backdrop-filter: blur(12px); border-bottom: 1px solid rgba(255,255,255,0.07); }
.qz-header-inner { max-width: 1200px; margin: 0 auto; padding: 14px 20px; display: flex; align-items: center; gap: 14px; }

.qz-back { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center; color: var(--white); transition: background var(--transition); flex-shrink: 0; }
.qz-back:hover { background: rgba(255,255,255,0.15); }

.qz-header-info { flex: 1; min-width: 0; }
.qz-header-title { font-size: 14px; font-weight: 700; color: var(--white); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; letter-spacing: -0.01em; }
.qz-header-sub { font-size: 11px; color: rgba(255,255,255,0.4); margin-top: 1px; }
.qz-header-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.qz-progress-text { font-size: 13px; font-weight: 700; color: rgba(255,255,255,0.7); }

.qz-support-btn { width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,0.08); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); transition: all var(--transition); }
.qz-support-btn:hover { background: #25D366; color: var(--white); }

.qz-progress-bar { height: 2px; background: rgba(255,255,255,0.08); }
.qz-progress-fill { height: 100%; background: var(--white); transition: width 0.4s ease; }

.qz-body { padding-top: 68px; min-height: 100vh; }

.qz-loading { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: calc(100vh - 68px); gap: 16px; }
.qz-loading-ring { width: 48px; height: 48px; border: 3px solid rgba(255,255,255,0.1); border-top-color: rgba(255,255,255,0.7); border-radius: 50%; animation: spin 0.8s linear infinite; }
.qz-loading-text { font-size: 14px; color: rgba(255,255,255,0.5); font-weight: 500; }

.qz-processing { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: calc(100vh - 68px); padding: 40px 20px; gap: 12px; }
.qz-proc-title { font-family: var(--font-serif); font-size: 22px; font-weight: 400; color: var(--white); letter-spacing: -0.02em; margin-top: 8px; }
.qz-proc-sub { font-size: 13px; color: rgba(255,255,255,0.45); margin-bottom: 16px; }
.qz-proc-steps { display: flex; flex-direction: column; gap: 10px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; padding: 18px 20px; max-width: 300px; width: 100%; }
.qz-proc-step { display: flex; align-items: center; gap: 10px; font-size: 13px; color: rgba(255,255,255,0.3); font-weight: 500; transition: color var(--transition); }
.qz-proc-step.active { color: var(--white); }
.qz-proc-step.done { color: #4ade80; }
.qz-proc-dot { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,0.2); flex-shrink: 0; transition: background var(--transition); }
.qz-proc-step.active .qz-proc-dot { background: var(--white); }
.qz-proc-step.done .qz-proc-dot { background: #4ade80; }

.qz-content { max-width: 1200px; margin: 0 auto; padding: 28px 20px 48px; display: grid; grid-template-columns: 1fr 340px; gap: 20px; align-items: start; }

.qz-question-card { background: #1a1a1a; border: 1px solid rgba(255,255,255,0.08); border-radius: 20px; padding: 32px; display: flex; flex-direction: column; gap: 20px; }
.qz-q-number { font-size: 11px; font-weight: 700; color: rgba(255,255,255,0.35); letter-spacing: 0.08em; text-transform: uppercase; }
.qz-q-text { font-size: 19px; font-weight: 700; color: var(--white); line-height: 1.5; letter-spacing: -0.02em; }

.qz-options { display: flex; flex-direction: column; gap: 10px; }

.qz-option { display: flex; align-items: center; gap: 12px; padding: 14px 18px; background: rgba(255,255,255,0.04); border: 1.5px solid rgba(255,255,255,0.08); border-radius: 12px; cursor: pointer; transition: all 0.2s ease; text-align: left; width: 100%; font-family: var(--font-sans); color: var(--white); }
.qz-option:hover:not([disabled]) { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.2); transform: translateX(3px); }
.qz-option:disabled { cursor: default; }

.qz-opt-letter { width: 28px; height: 28px; border-radius: 50%; background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.6); font-size: 12px; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: all 0.2s ease; }
.qz-opt-text { flex: 1; font-size: 14px; font-weight: 500; color: rgba(255,255,255,0.85); line-height: 1.4; }
.qz-opt-icon { flex-shrink: 0; }

.qz-option-correct { background: rgba(74,222,128,0.1); border-color: rgba(74,222,128,0.4); }
.qz-option-correct .qz-opt-letter { background: #4ade80; color: #000; }
.qz-option-correct .qz-opt-icon { color: #4ade80; }
.qz-option-wrong { background: rgba(248,113,113,0.1); border-color: rgba(248,113,113,0.4); }
.qz-option-wrong .qz-opt-letter { background: #f87171; color: #000; }
.qz-option-wrong .qz-opt-icon { color: #f87171; }
.qz-option-disabled { opacity: 0.35; }

.qz-explanation { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; padding: 16px 18px; }
.qz-exp-header { display: flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 700; color: rgba(255,255,255,0.6); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.06em; }
.qz-exp-text { font-size: 14px; color: rgba(255,255,255,0.75); line-height: 1.65; margin-bottom: 8px; }
.qz-exp-disclaimer { font-size: 11px; color: rgba(255,255,255,0.3); font-style: italic; }

.qz-actions { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }

.qz-btn-next { display: inline-flex; align-items: center; gap: 6px; padding: 12px 24px; background: var(--white); color: var(--black); font-size: 14px; font-weight: 700; border: none; border-radius: 100px; cursor: pointer; transition: all 0.2s ease; font-family: var(--font-sans); }
.qz-btn-next:hover:not(:disabled) { background: rgba(255,255,255,0.9); transform: translateY(-1px); }
.qz-btn-next:disabled { background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.3); cursor: not-allowed; transform: none; }

.qz-btn-prev { display: inline-flex; align-items: center; gap: 6px; padding: 12px 20px; background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.7); font-size: 14px; font-weight: 600; border: 1px solid rgba(255,255,255,0.1); border-radius: 100px; cursor: pointer; transition: all 0.2s ease; font-family: var(--font-sans); }
.qz-btn-prev:hover { background: rgba(255,255,255,0.1); color: var(--white); }

.qz-btn-submit { display: inline-flex; align-items: center; padding: 12px 24px; background: var(--white); color: var(--black); font-size: 14px; font-weight: 700; border: none; border-radius: 100px; cursor: pointer; transition: all 0.2s ease; font-family: var(--font-sans); }
.qz-btn-submit:hover:not(:disabled) { transform: translateY(-1px); opacity: 0.9; }
.qz-btn-submit:disabled { opacity: 0.4; cursor: not-allowed; }

.qz-btn-ghost { display: inline-flex; align-items: center; padding: 12px 20px; background: rgba(255,255,255,0.06); color: rgba(255,255,255,0.7); font-size: 14px; font-weight: 600; border: 1px solid rgba(255,255,255,0.1); border-radius: 100px; transition: all 0.2s ease; font-family: var(--font-sans); }
.qz-btn-ghost:hover { background: rgba(255,255,255,0.1); color: var(--white); }

.qz-result-card { background: #1a1a1a; border: 1px solid rgba(255,255,255,0.08); border-radius: 20px; padding: 40px 32px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 14px; }
.qz-result-circle { width: 120px; height: 120px; border-radius: 50%; border: 3px solid rgba(255,255,255,0.15); display: flex; flex-direction: column; align-items: center; justify-content: center; margin-bottom: 8px; }
.qz-result-pct { font-family: var(--font-serif); font-size: 32px; line-height: 1; letter-spacing: -0.02em; }
.qz-result-label { font-size: 10px; color: rgba(255,255,255,0.4); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; }
.qz-result-title { font-family: var(--font-serif); font-size: 26px; font-weight: 400; color: var(--white); letter-spacing: -0.02em; }
.qz-result-desc { font-size: 14px; color: rgba(255,255,255,0.5); line-height: 1.6; }
.qz-result-stats { display: flex; gap: 32px; padding: 18px 24px; background: rgba(255,255,255,0.04); border-radius: 14px; border: 1px solid rgba(255,255,255,0.07); }
.qz-result-stat { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.qz-result-stat-num { font-family: var(--font-serif); font-size: 28px; color: var(--white); letter-spacing: -0.02em; }
.qz-result-stat-label { font-size: 11px; color: rgba(255,255,255,0.4); font-weight: 500; }
.qz-result-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }

.qz-right { position: sticky; top: 80px; height: calc(100vh - 100px); }
.qz-chat { background: #1a1a1a; border: 1px solid rgba(255,255,255,0.08); border-radius: 20px; height: 100%; display: flex; flex-direction: column; overflow: hidden; }
.qz-chat-locked { background: #1a1a1a; border: 1px solid rgba(255,255,255,0.08); border-radius: 20px; height: 100%; display: flex; align-items: center; justify-content: center; padding: 28px; }
.qz-chat-locked-inner { text-align: center; }
.qz-chat-lock-icon { width: 52px; height: 52px; background: rgba(255,255,255,0.06); border-radius: 14px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.4); margin: 0 auto 14px; }
.qz-chat-lock-title { font-size: 16px; font-weight: 700; color: var(--white); letter-spacing: -0.02em; margin-bottom: 8px; }
.qz-chat-lock-desc { font-size: 13px; color: rgba(255,255,255,0.45); line-height: 1.6; margin-bottom: 18px; }
.qz-unlock-btn { padding: 10px 20px; background: var(--white); color: var(--black); font-size: 13px; font-weight: 700; border: none; border-radius: 100px; cursor: pointer; transition: all 0.2s ease; font-family: var(--font-sans); }
.qz-unlock-btn:hover { background: rgba(255,255,255,0.9); transform: translateY(-1px); }

.qz-chat-header { padding: 14px 18px; border-bottom: 1px solid rgba(255,255,255,0.07); display: flex; align-items: center; justify-content: space-between; flex-shrink: 0; }
.qz-chat-status { display: flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 700; color: var(--white); }
.qz-chat-dot { width: 7px; height: 7px; background: #4ade80; border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.qz-chat-doc-label { font-size: 10px; color: rgba(255,255,255,0.35); font-weight: 600; max-width: 140px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.qz-chat-messages { flex: 1; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 10px; scroll-behavior: smooth; }
.qz-chat-messages::-webkit-scrollbar { width: 3px; }
.qz-chat-messages::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 100px; }

.qz-chat-msg { display: flex; flex-direction: column; gap: 4px; max-width: 88%; opacity: 0; transform: translateY(6px); transition: opacity 0.25s ease, transform 0.25s ease; }
.qz-chat-msg.visible { opacity: 1; transform: translateY(0); }
.qz-chat-msg-ai { align-self: flex-start; }
.qz-chat-msg-user { align-self: flex-end; }

.qz-chat-bubble { padding: 11px 14px; border-radius: 14px; font-size: 13px; line-height: 1.55; font-weight: 500; }
.qz-chat-msg-ai .qz-chat-bubble { background: rgba(255,255,255,0.07); color: rgba(255,255,255,0.85); border-radius: 4px 14px 14px 14px; }
.qz-chat-msg-user .qz-chat-bubble { background: var(--white); color: var(--black); border-radius: 14px 4px 14px 14px; }
.qz-chat-disclaimer { font-size: 10px; color: rgba(255,255,255,0.25); font-style: italic; padding: 0 3px; }
.qz-typing-bubble { display: flex; gap: 4px; align-items: center; }

.qz-chat-input-wrap { padding: 10px 14px; border-top: 1px solid rgba(255,255,255,0.07); display: flex; align-items: flex-end; gap: 8px; flex-shrink: 0; }
.qz-chat-input { flex: 1; font-size: 13px; font-family: var(--font-sans); color: var(--white); background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; padding: 10px 12px; outline: none; resize: none; line-height: 1.5; max-height: 100px; transition: border-color var(--transition); }
.qz-chat-input::placeholder { color: rgba(255,255,255,0.25); }
.qz-chat-input:focus { border-color: rgba(255,255,255,0.25); }
.qz-chat-send { width: 34px; height: 34px; border-radius: 50%; background: var(--white); border: none; display: flex; align-items: center; justify-content: center; color: var(--black); cursor: pointer; transition: all 0.2s ease; flex-shrink: 0; }
.qz-chat-send:hover { transform: scale(1.08); }
.qz-chat-send:disabled { background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.3); cursor: not-allowed; transform: none; }
.qz-chat-footer-note { padding: 6px 14px 10px; font-size: 10px; color: rgba(255,255,255,0.25); text-align: right; flex-shrink: 0; }

/* ============================================
   CHAT DARK — IMAGE 1 STYLE
   ============================================ */

.chat-dark-body { background: #000000; height: 100vh; overflow: hidden; }
.chat-dark-app { display: flex; height: 100vh; overflow: hidden; background: #000000; }

.cd-sidebar { width: 260px; flex-shrink: 0; background: #181818; border-right: 1px solid rgba(255,255,255,0.1); box-shadow: 4px 0 24px rgba(0,0,0,0.5); display: flex; flex-direction: column; overflow: hidden; transition: transform 0.3s ease; }

.cd-sidebar-top { display: flex; align-items: center; justify-content: space-between; padding: 16px; border-bottom: 1px solid rgba(255,255,255,0.06); flex-shrink: 0; gap: 10px; }

.cd-menu-btn { width: 32px; height: 32px; border-radius: 8px; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); cursor: pointer; transition: background var(--transition); flex-shrink: 0; }
.cd-menu-btn:hover { background: rgba(255,255,255,0.12); }

.cd-logo { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; }

.cd-new-btn { width: 32px; height: 32px; border-radius: 8px; background: rgba(255,255,255,0.06); display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.6); cursor: pointer; transition: all var(--transition); flex-shrink: 0; }
.cd-new-btn:hover { background: rgba(255,255,255,0.15); color: var(--white); }

.cd-sidebar-label { font-size: 10px; font-weight: 700; color: rgba(255,255,255,0.3); letter-spacing: 0.1em; text-transform: uppercase; padding: 14px 16px 6px; flex-shrink: 0; }

.cd-sessions { flex: 1; overflow-y: auto; padding: 4px 8px; scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.08) transparent; }
.cd-sessions::-webkit-scrollbar { width: 3px; }
.cd-sessions::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 100px; }

.cd-session-sk { display: flex; align-items: center; gap: 10px; padding: 10px 8px; }
.cd-session-sk-icon { width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,0.06); flex-shrink: 0; animation: pulse-sk 1.5s infinite; }
@keyframes pulse-sk { 0%,100% { opacity: 0.4; } 50% { opacity: 0.8; } }

.cd-session { display: flex; align-items: center; gap: 12px; padding: 10px 10px; border-radius: 12px; cursor: pointer; transition: background var(--transition); margin-bottom: 3px; }
.cd-session:hover { background: rgba(255,255,255,0.06); }
.cd-session.active { background: rgba(255,255,255,0.09); }

.cd-session-icon { width: 34px; height: 34px; border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.cd-session-info { flex: 1; min-width: 0; }
.cd-session-name { font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.8); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 2px; }
.cd-session-sub { font-size: 11px; color: rgba(255,255,255,0.3); }

.cd-no-docs { padding: 10px 8px; }
.cd-no-docs p { font-size: 13px; color: rgba(255,255,255,0.4); margin-bottom: 6px; }
.cd-no-docs a { font-size: 13px; color: rgba(255,255,255,0.6); font-weight: 600; text-decoration: underline; }

.cd-sidebar-bottom { padding: 14px 16px; border-top: 1px solid rgba(255,255,255,0.1); flex-shrink: 0; }
.cd-usage { margin-bottom: 12px; }
.cd-usage-row { display: flex; justify-content: space-between; font-size: 11px; color: rgba(255,255,255,0.35); font-weight: 500; margin-bottom: 6px; }
.cd-usage-bar { height: 3px; background: rgba(255,255,255,0.08); border-radius: 100px; overflow: hidden; }
.cd-usage-fill { height: 100%; background: rgba(255,255,255,0.4); border-radius: 100px; transition: width 0.4s ease; }
.cd-support-btn { display: flex; align-items: center; gap: 7px; font-size: 12px; font-weight: 600; color: rgba(255,255,255,0.35); transition: color var(--transition); padding: 6px 0; }
.cd-support-btn:hover { color: rgba(255,255,255,0.7); }

/* Main area */
.cd-main { flex: 1; display: flex; flex-direction: column; overflow: hidden; background: #000000; min-width: 0; }

/* Locked */
.cd-locked { flex: 1; display: none; align-items: center; justify-content: center; padding: 40px 20px; }
.cd-locked-card { max-width: 360px; width: 100%; background: #111111; border: 1px solid rgba(255,255,255,0.08); border-radius: 24px; padding: 48px 32px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 12px; }
.cd-locked-icon { width: 60px; height: 60px; background: rgba(255,255,255,0.06); border-radius: 16px; display: flex; align-items: center; justify-content: center; color: rgba(255,255,255,0.4); }
.cd-locked-title { font-family: var(--font-serif); font-size: 22px; font-weight: 400; color: var(--white); letter-spacing: -0.02em; }
.cd-locked-desc { font-size: 14px; color: rgba(255,255,255,0.45); line-height: 1.65; }
.cd-upgrade-btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 28px; background: var(--white); color: var(--black); font-size: 14px; font-weight: 700; border-radius: 100px; transition: all 0.2s ease; font-family: var(--font-sans); }
.cd-upgrade-btn:hover { transform: translateY(-1px); background: rgba(255,255,255,0.9); }
.cd-locked-back { font-size: 13px; color: rgba(255,255,255,0.35); font-weight: 600; transition: color var(--transition); }
.cd-locked-back:hover { color: rgba(255,255,255,0.7); }

/* Welcome */
.cd-welcome { flex: 1; display: flex; align-items: center; justify-content: center; padding: 48px 24px; overflow-y: auto; }
.cd-welcome-inner { text-align: center; max-width: 480px; }
.cd-welcome-logo { display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
.cd-welcome-title { font-family: var(--font-serif); font-size: 30px; font-weight: 700; color: var(--white); letter-spacing: -0.02em; margin-bottom: 10px; }
.cd-welcome-sub { font-size: 15px; color: rgba(255,255,255,0.45); line-height: 1.65; margin-bottom: 32px; max-width: 360px; margin-left: auto; margin-right: auto; }

/* 2x2 chip grid like ChatGPT */
.cd-chips { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; max-width: 400px; margin: 0 auto; }

.cd-chip { padding: 14px 16px; background: #111111; border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.7); cursor: pointer; transition: all var(--transition); font-family: var(--font-sans); text-align: left; line-height: 1.4; display: flex; align-items: flex-start; gap: 10px; }
.cd-chip-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
.cd-chip:hover { background: rgba(255,255,255,0.08); color: var(--white); border-color: rgba(255,255,255,0.15); transform: translateY(-1px); }

/* Messages */
.cd-messages { flex: 1; overflow-y: auto; padding: 20px 0; display: flex; flex-direction: column; gap: 0; scroll-behavior: smooth; }
.cd-messages::-webkit-scrollbar { width: 3px; }
.cd-messages::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 100px; }

.cd-msg { display: flex; padding: 8px 24px; opacity: 0; transform: translateY(8px); transition: opacity 0.3s ease, transform 0.3s ease; }
.cd-msg.in { opacity: 1; transform: translateY(0); }
.cd-msg-user { justify-content: flex-end; }
.cd-msg-ai { justify-content: flex-start; flex-direction: column; gap: 4px; }

.cd-bubble { padding: 12px 16px; border-radius: 18px; font-size: 14px; line-height: 1.65; font-weight: 400; word-wrap: break-word; max-width: 75%; }

/* User bubble — clean white on black */
.cd-bubble-user { background: #1a1a1a; color: var(--white); border: 1px solid rgba(255,255,255,0.1); border-radius: 18px 18px 4px 18px; }

/* AI bubble — dark card */
.cd-bubble-ai { background: transparent; color: rgba(255,255,255,0.85); border-radius: 0; max-width: 680px; padding: 12px 0; }
.cd-bubble-ai p { margin-bottom: 10px; }
.cd-bubble-ai p:last-child { margin-bottom: 0; }
.cd-bubble-ai strong { font-weight: 700; color: var(--white); }

.cd-disclaimer { font-size: 10px; color: rgba(255,255,255,0.2); font-style: italic; padding: 0 0 4px; }

/* Typing */
.cd-typing-bubble { display: flex; gap: 5px; align-items: center; padding: 4px 0; background: transparent; }
.cd-dot { width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,0.3); animation: cdDot 1.3s infinite ease-in-out; display: inline-block; }
.cd-dot:nth-child(1) { animation-delay: 0s; }
.cd-dot:nth-child(2) { animation-delay: 0.2s; }
.cd-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes cdDot { 0%,60%,100% { transform: translateY(0); opacity: 0.3; } 30% { transform: translateY(-7px); opacity: 1; } }

/* Input zone */
.cd-input-zone { padding: 10px 20px 20px; flex-shrink: 0; }

.cd-input-pill { display: flex; align-items: flex-end; gap: 10px; background: #111111; border: 1px solid rgba(255,255,255,0.1); border-radius: 16px; padding: 12px 12px 12px 18px; transition: border-color 0.2s ease; max-width: 760px; margin: 0 auto; }
.cd-input-pill:focus-within { border-color: rgba(255,255,255,0.2); }

.cd-textarea { flex: 1; font-size: 15px; font-family: var(--font-sans); color: var(--white); background: transparent; border: none; outline: none; resize: none; line-height: 1.5; max-height: 140px; min-height: 24px; padding: 2px 0; }
.cd-textarea::placeholder { color: rgba(255,255,255,0.25); }

.cd-input-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

/* Send button — clean circle */
.cd-send-btn { width: 36px; height: 36px; border-radius: 50%; background: var(--white); border: none; display: flex; align-items: center; justify-content: center; color: var(--black); cursor: pointer; transition: all 0.2s ease; flex-shrink: 0; }
.cd-send-btn:hover:not(:disabled) { transform: scale(1.08); background: rgba(255,255,255,0.9); }
.cd-send-btn:active:not(:disabled) { transform: scale(0.94); }
.cd-send-btn:disabled { background: rgba(255,255,255,0.1); cursor: not-allowed; transform: none; }
.cd-send-btn:disabled svg { fill: rgba(255,255,255,0.2); }

.cd-input-note { text-align: center; font-size: 11px; color: rgba(255,255,255,0.2); margin-top: 8px; line-height: 1.5; max-width: 760px; margin-left: auto; margin-right: auto; }

/* ============================================
   ONBOARDING
   ============================================ */

.onboarding-page { min-height: 100vh; padding-top: var(--nav-height); background: var(--grey-50); display: flex; align-items: center; justify-content: center; padding-bottom: 40px; }
.onboarding-container { width: 100%; max-width: 500px; margin: 40px 20px; background: var(--white); border: 1.5px solid var(--grey-200); border-radius: var(--radius-xl); padding: 40px 36px; box-shadow: var(--shadow-lg); }
.onboarding-progress { height: 3px; background: var(--grey-200); border-radius: 100px; margin-bottom: 14px; overflow: hidden; }
.onboarding-progress-fill { height: 100%; background: var(--black); border-radius: 100px; transition: width 0.4s ease; }
.onboarding-step-counter { font-size: 11px; font-weight: 700; color: var(--grey-400); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 28px; }
.onboarding-icon { width: 52px; height: 52px; background: var(--black); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; color: var(--white); margin-bottom: 20px; }
.onboarding-icon-success { background: #16a34a; }
.onboarding-title { font-family: var(--font-serif); font-size: 28px; font-weight: 400; color: var(--black); letter-spacing: -0.02em; margin-bottom: 8px; }
.onboarding-subtitle { font-size: 14px; color: var(--grey-600); line-height: 1.6; margin-bottom: 28px; }
.onboarding-card { background: var(--grey-50); border: 1.5px solid var(--grey-200); border-radius: var(--radius-lg); padding: 4px 0; margin-bottom: 24px; }
.confirm-row { display: flex; justify-content: space-between; align-items: center; padding: 13px 18px; gap: 14px; }
.confirm-label { font-size: 12px; font-weight: 600; color: var(--grey-500); flex-shrink: 0; }
.confirm-value { font-size: 13px; font-weight: 600; color: var(--black); text-align: right; }
.confirm-divider { height: 1px; background: var(--grey-200); margin: 0 18px; }
.onboarding-actions { display: flex; flex-direction: column; gap: 10px; }

.onboarding-upload-area { border: 2px dashed var(--grey-300); border-radius: var(--radius-lg); margin-bottom: 8px; transition: all var(--transition); overflow: hidden; }
.onboarding-upload-area.drag-over { border-color: var(--black); background: var(--grey-50); }
.upload-area-inner { padding: 36px 20px; display: flex; flex-direction: column; align-items: center; gap: 7px; cursor: pointer; transition: background var(--transition); }
.upload-area-inner:hover { background: var(--grey-50); }
.upload-area-icon { color: var(--grey-400); margin-bottom: 4px; }
.upload-area-text { font-size: 14px; font-weight: 600; color: var(--grey-700); }
.upload-area-hint { font-size: 12px; color: var(--grey-400); }
.upload-selected { padding: 14px 18px; display: flex; align-items: center; justify-content: space-between; gap: 10px; background: var(--grey-50); }
.upload-file-info { display: flex; align-items: center; gap: 10px; }
.upload-file-icon { width: 36px; height: 36px; background: var(--black); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: var(--white); flex-shrink: 0; }
.upload-file-name { font-size: 13px; font-weight: 600; color: var(--black); max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload-file-size { font-size: 11px; color: var(--grey-500); margin-top: 1px; }
.upload-remove-btn { font-size: 12px; font-weight: 600; color: #dc2626; background: none; border: none; cursor: pointer; font-family: var(--font-sans); }
.upload-remove-btn:hover { color: #b91c1c; }

.onboarding-features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; background: var(--grey-50); border: 1.5px solid var(--grey-200); border-radius: var(--radius-lg); padding: 18px; }
.onboarding-feature { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--grey-700); font-weight: 500; }
.onboarding-feature-dot { width: 7px; height: 7px; background: var(--black); border-radius: 50%; flex-shrink: 0; }

/* ============================================
   UPLOAD PAGE
   ============================================ */

.upload-page-inner { max-width: 1200px; margin: 0 auto; padding: 32px 20px; }
.upload-page-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 28px; gap: 14px; flex-wrap: wrap; }
.upload-limit-badge { font-size: 12px; font-weight: 600; color: var(--grey-600); background: var(--grey-100); border: 1.5px solid var(--grey-200); padding: 7px 14px; border-radius: var(--radius-md); white-space: nowrap; }
.upload-page-grid { display: grid; grid-template-columns: 1fr 300px; gap: 24px; align-items: start; }
.upload-form-card { background: var(--white); border: 1.5px solid var(--grey-200); border-radius: var(--radius-xl); padding: 28px; }
.upload-drop-area { border: 2px dashed var(--grey-300); border-radius: var(--radius-lg); margin-bottom: 24px; transition: all var(--transition); overflow: hidden; min-height: 180px; display: flex; align-items: center; justify-content: center; }
.upload-drop-area.drag-over { border-color: var(--black); background: var(--grey-50); }
.upload-drop-inner { padding: 40px 24px; display: flex; flex-direction: column; align-items: center; gap: 6px; cursor: pointer; width: 100%; transition: background var(--transition); }
.upload-drop-inner:hover { background: var(--grey-50); }
.upload-drop-icon { color: var(--grey-400); margin-bottom: 6px; }
.upload-drop-title { font-size: 16px; font-weight: 700; color: var(--black); letter-spacing: -0.02em; }
.upload-drop-sub { font-size: 13px; color: var(--grey-500); margin-bottom: 10px; }
.upload-formats { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-bottom: 6px; }
.upload-format-tag { padding: 3px 10px; background: var(--grey-100); border: 1px solid var(--grey-200); border-radius: 4px; font-size: 11px; font-weight: 700; color: var(--grey-600); letter-spacing: 0.04em; }
.upload-drop-limit { font-size: 11px; color: var(--grey-400); }
.upload-file-selected { padding: 18px 20px; display: flex; align-items: center; gap: 14px; width: 100%; background: var(--grey-50); }
.selected-file-icon { width: 44px; height: 44px; background: var(--black); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: var(--white); flex-shrink: 0; }
.selected-file-info { flex: 1; min-width: 0; }
.selected-file-name { font-size: 14px; font-weight: 600; color: var(--black); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.selected-file-size { font-size: 12px; color: var(--grey-500); margin-top: 2px; }
.selected-file-remove { width: 30px; height: 30px; border-radius: 50%; background: var(--grey-200); display: flex; align-items: center; justify-content: center; color: var(--grey-600); cursor: pointer; transition: all var(--transition); flex-shrink: 0; border: none; }
.selected-file-remove:hover { background: #fee2e2; color: #dc2626; }
.upload-uploading { padding: 40px 24px; flex-direction: column; align-items: center; gap: 10px; width: 100%; display: flex; }
.uploading-spinner { width: 36px; height: 36px; border: 3px solid var(--grey-200); border-top-color: var(--black); border-radius: 50%; animation: spin 0.8s linear infinite; }
.uploading-text { font-size: 15px; font-weight: 700; color: var(--black); letter-spacing: -0.02em; }
.uploading-sub { font-size: 12px; color: var(--grey-500); }
.upload-options { margin-bottom: 20px; }
.optional-tag { font-size: 10px; font-weight: 600; color: var(--grey-400); letter-spacing: 0.04em; text-transform: uppercase; margin-left: 5px; }
.toggle-option { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 14px; background: var(--grey-50); border: 1.5px solid var(--grey-200); border-radius: var(--radius-md); cursor: pointer; transition: border-color var(--transition); }
.toggle-option:hover { border-color: var(--grey-400); }
.toggle-option-info { display: flex; flex-direction: column; gap: 2px; }
.toggle-option-title { font-size: 13px; font-weight: 600; color: var(--black); }
.toggle-option-desc { font-size: 11px; color: var(--grey-500); }
.toggle-switch { width: 40px; height: 22px; background: var(--grey-300); border-radius: 100px; position: relative; transition: background var(--transition); flex-shrink: 0; }
.toggle-switch::after { content: ''; position: absolute; width: 16px; height: 16px; background: var(--white); border-radius: 50%; top: 3px; left: 3px; transition: transform var(--transition); box-shadow: var(--shadow-sm); }
.toggle-switch.active { background: var(--black); }
.toggle-switch.active::after { transform: translateX(18px); }
.upload-info-col { display: flex; flex-direction: column; gap: 14px; }
.upload-info-card { background: var(--white); border: 1.5px solid var(--grey-200); border-radius: var(--radius-lg); padding: 22px; }
.upload-info-title { font-size: 13px; font-weight: 700; color: var(--black); letter-spacing: -0.01em; margin-bottom: 14px; }
.upload-steps-list { display: flex; flex-direction: column; gap: 14px; }
.upload-step-item { display: flex; gap: 10px; align-items: flex-start; }
.upload-step-num { width: 22px; height: 22px; background: var(--black); color: var(--white); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; flex-shrink: 0; }
.upload-step-title { font-size: 13px; font-weight: 700; color: var(--black); margin-bottom: 2px; }
.upload-step-desc { font-size: 12px; color: var(--grey-500); line-height: 1.5; }
.upload-tips-list { display: flex; flex-direction: column; gap: 8px; }
.upload-tips-list li { font-size: 13px; color: var(--grey-600); padding-left: 14px; position: relative; line-height: 1.4; }
.upload-tips-list li::before { content: ''; position: absolute; left: 0; top: 7px; width: 5px; height: 5px; background: var(--grey-400); border-radius: 50%; }
.limit-card-header { display: flex; align-items: center; justify-content: space-between; }
.upgrade-limit-link { display: block; font-size: 12px; font-weight: 600; color: var(--black); margin-top: 10px; transition: opacity var(--transition); }
.upgrade-limit-link:hover { opacity: 0.6; }

.processing-overlay { position: fixed; inset: 0; background: rgba(255,255,255,0.96); backdrop-filter: blur(8px); z-index: 2000; display: flex; align-items: center; justify-content: center; padding: 20px; }
.processing-card { max-width: 380px; width: 100%; text-align: center; }
.processing-animation { width: 64px; height: 64px; position: relative; margin: 0 auto 24px; }
.processing-ring { width: 64px; height: 64px; border: 3px solid var(--grey-200); border-top-color: var(--black); border-radius: 50%; animation: spin 1s linear infinite; position: absolute; }
.processing-dot { width: 10px; height: 10px; background: var(--black); border-radius: 50%; position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.processing-title { font-family: var(--font-serif); font-size: 24px; font-weight: 400; color: var(--black); letter-spacing: -0.02em; margin-bottom: 8px; }
.processing-desc { font-size: 13px; color: var(--grey-500); line-height: 1.6; margin-bottom: 28px; }
.processing-steps { display: flex; flex-direction: column; gap: 10px; background: var(--grey-50); border: 1.5px solid var(--grey-200); border-radius: var(--radius-lg); padding: 18px; }
.processing-step { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--grey-400); font-weight: 500; transition: color var(--transition); }
.processing-step.active { color: var(--black); }
.processing-step.done { color: #16a34a; }
.processing-step-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--grey-300); flex-shrink: 0; transition: background var(--transition); }
.processing-step.active .processing-step-dot { background: var(--black); }
.processing-step.done .processing-step-dot { background: #16a34a; }

/* Typing dots shared */
.tdot { width: 6px; height: 6px; background: rgba(255,255,255,0.4); border-radius: 50%; animation: tdotBounce 1.3s infinite ease-in-out; display: inline-block; }
.tdot:nth-child(1) { animation-delay: 0s; }
.tdot:nth-child(2) { animation-delay: 0.18s; }
.tdot:nth-child(3) { animation-delay: 0.36s; }
@keyframes tdotBounce { 0%,60%,100% { transform: translateY(0); opacity: 0.4; } 30% { transform: translateY(-6px); opacity: 1; } }

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .steps-grid { grid-template-columns: repeat(2,1fr); }
  .features-grid { grid-template-columns: repeat(2,1fr); }
  .feature-item:nth-child(3n) { border-right: 1px solid var(--grey-200); }
  .feature-item:nth-child(2n) { border-right: none; }
  .feature-item:nth-child(n+4) { border-bottom: 1px solid var(--grey-200); }
  .feature-item:nth-child(n+5) { border-bottom: none; }
  .materials-grid { grid-template-columns: repeat(2,1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .pricing-card-featured { transform: none; }
  .pricing-card-featured:hover { transform: translateY(-4px); }
  .pricing-card-ultra { transform: none; }
  .db-stat-cards { grid-template-columns: repeat(2,1fr); }
  .db-grid { grid-template-columns: 1fr; }
  .db-right { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
  .db-right .db-card { margin-bottom: 0; }
  .upload-page-grid { grid-template-columns: 1fr; }
  .upload-info-col { display: grid; grid-template-columns: 1fr 1fr; }
  .qz-content { grid-template-columns: 1fr; }
  .qz-right { position: static; height: 480px; }
}

@media (max-width: 768px) {
  .nav-inner { padding: 0 16px; }
  .nav-links { display: none; }
  .hero { padding-top: calc(var(--nav-height) + 48px); padding-bottom: 48px; }
  .hero-title { font-size: clamp(32px,9vw,52px); }
  .steps-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-item { border-right: none !important; border-bottom: 1px solid var(--grey-200) !important; }
  .feature-item:last-child { border-bottom: none !important; }
  .materials-grid { grid-template-columns: 1fr; }
  .stat-item { padding: 6px 18px; }
  .stat-divider { display: none; }
  .auth-split-left { display: none; }
  .auth-split-right { padding: 24px 16px; min-height: calc(100vh - var(--nav-height)); }
  .auth-container { padding: 32px 24px; }
  .footer-inner { flex-direction: column; gap: 28px; }
  .footer-links { gap: 28px; }
  .db-outer { padding: 20px 14px 40px; }
  .db-stat-cards { grid-template-columns: repeat(2,1fr); gap: 10px; }
  .db-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .db-right { grid-template-columns: 1fr; }
  .upload-page-inner { padding: 20px 16px; }
  .upload-form-card { padding: 20px; }
  .upload-info-col { grid-template-columns: 1fr; }
  .qz-content { padding: 16px 14px 40px; gap: 14px; }
  .qz-question-card { padding: 22px 18px; }
  .qz-q-text { font-size: 16px; }
  .qz-actions { flex-direction: column-reverse; }
  .qz-btn-next, .qz-btn-prev, .qz-btn-submit, .qz-btn-ghost { width: 100%; justify-content: center; }
  .modal { padding: 28px 22px; }
  .modal-actions { flex-direction: column; }
  .how-it-works, .popular-section, .features-section, .pricing-preview { padding: 64px 0; }
  .otp-input { width: 40px; height: 48px; font-size: 18px; }
  .otp-input-group { gap: 6px; }
  .cd-sidebar { position: fixed; top: 0; left: 0; bottom: 0; z-index: 500; transform: translateX(-100%); width: 272px; }
  .cd-sidebar.open { transform: translateX(0); }
  .cd-msg { padding: 6px 14px; }
  .cd-bubble { font-size: 13px; }
  .cd-bubble-user { max-width: 260px; }
  .cd-welcome-title { font-size: 24px; }
  .cd-chips { grid-template-columns: 1fr; gap: 8px; }
  .cd-input-zone { padding: 8px 12px 16px; }
  .cd-input-pill { border-radius: 14px; }
}

@media (max-width: 480px) {
  .logo-text { font-size: 16px; }
  .btn-ghost { display: none; }
  .hero-title { font-size: clamp(28px,10vw,44px); }
  .db-stat-cards { grid-template-columns: 1fr 1fr; }
  .db-stat-value { font-size: 32px; }
  .qz-q-text { font-size: 15px; }
  .qz-result-circle { width: 100px; height: 100px; }
  .qz-result-stats { gap: 20px; }
  .qz-result-actions { flex-direction: column; }
  .onboarding-container { padding: 28px 20px; margin: 20px 14px; }
  .otp-input { width: 36px; height: 44px; font-size: 16px; }
  .otp-input-group { gap: 5px; }
  .cd-msg { padding: 4px 10px; }
  .cd-bubble-user { max-width: 220px; }
  .cd-welcome-title { font-size: 20px; }
  .cd-send-btn { width: 32px; height: 32px; }
}
/* ── GOOGLE BUTTON ── */
.btn-google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 13px 20px;
  background: var(--white);
  border: 1.5px solid var(--grey-200);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  font-family: var(--font-sans);
  color: var(--black);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 20px;
}

.btn-google:hover {
  background: var(--grey-50);
  border-color: var(--grey-400);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.btn-google:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}