/* ===================== RESET & BASE ===================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --teal: #0d9488;
  --teal-light: #14b8a6;
  --teal-dark: #0f766e;
  --dark: #0f172a;
  --dark-mid: #1e293b;
  --gray: #64748b;
  --gray-light: #f1f5f9;
  --gray-border: #e2e8f0;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,.08);
  --shadow-lg: 0 16px 48px rgba(0,0,0,.12);
  --font: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--dark);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ===================== NAV ===================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-border);
  transition: box-shadow .3s;
}
.nav.scrolled { box-shadow: var(--shadow); }
.nav__inner {
  max-width: 1160px; margin: 0 auto; padding: 0 24px;
  height: 68px; display: flex; align-items: center; gap: 40px;
}
.nav__logo { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.logo-icon { font-size: 24px; color: var(--teal); }
.logo-text { font-size: 20px; font-weight: 800; color: var(--dark); letter-spacing: -.5px; }
.nav__links { display: flex; list-style: none; gap: 32px; margin-left: auto; }
.nav__links a { text-decoration: none; color: var(--gray); font-size: 14px; font-weight: 500; transition: color .2s; }
.nav__links a:hover { color: var(--dark); }
.nav__actions { display: flex; gap: 12px; align-items: center; }
.nav__burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav__burger span { display: block; width: 22px; height: 2px; background: var(--dark); border-radius: 2px; transition: .3s; }
.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__theme-btn {
  background: none; border: 1.5px solid var(--gray-border); border-radius: 50%;
  width: 34px; height: 34px; cursor: pointer; display: flex; align-items: center; justify-content: center;
  color: var(--gray); transition: all .2s; flex-shrink: 0;
}
.nav__theme-btn:hover { border-color: var(--teal); color: var(--teal); }
.nav__theme-btn svg { width: 16px; height: 16px; stroke-width: 2; }

/* Mobile nav menu */
.nav__mobile {
  display: none; position: fixed; top: 68px; left: 0; right: 0; z-index: 99;
  background: var(--white); border-bottom: 1px solid var(--gray-border);
  padding: 8px 24px 16px; flex-direction: column; gap: 2px;
  box-shadow: 0 8px 24px rgba(0,0,0,.1);
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  text-decoration: none; color: var(--gray); font-size: 15px; font-weight: 500;
  padding: 12px 0; border-bottom: 1px solid var(--gray-border); display: block;
  transition: color .2s;
}
.nav__mobile a:last-of-type { border-bottom: none; }
.nav__mobile a:hover { color: var(--dark); }
.nav__mobile-actions { display: flex; gap: 10px; align-items: center; padding-top: 12px; }

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 14px; font-weight: 600;
  cursor: pointer; text-decoration: none; border: 2px solid transparent;
  transition: all .2s; white-space: nowrap;
}
.btn--primary { background: var(--teal); color: var(--white); border-color: var(--teal); }
.btn--primary:hover { background: var(--teal-dark); border-color: var(--teal-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(13,148,136,.3); }
.btn--ghost { background: transparent; color: var(--dark); border-color: var(--gray-border); }
.btn--ghost:hover { border-color: var(--dark); }
.btn--outline { background: transparent; color: var(--dark); border-color: var(--dark); }
.btn--outline:hover { background: var(--dark); color: var(--white); }
.btn--ghost-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,.4); }
.btn--ghost-light:hover { border-color: var(--white); background: rgba(255,255,255,.1); }
.btn--teal { background: var(--teal); color: var(--white); border-color: var(--teal); }
.btn--xs { padding: 4px 10px; font-size: 12px; border-radius: 6px; }
.btn--lg { padding: 14px 28px; font-size: 15px; }
.btn--full { width: 100%; justify-content: center; }
.link-btn { background: none; border: none; color: var(--teal); font-weight: 600; cursor: pointer; font-size: inherit; text-decoration: underline; }

/* ===================== BADGE ===================== */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; letter-spacing: .3px;
}
.badge--teal { background: #ccfbf1; color: var(--teal-dark); }
.badge--dark { background: var(--dark); color: var(--white); }

/* ===================== SECTION HEADER ===================== */
.section-header { text-align: center; margin-bottom: 56px; display: flex; flex-direction: column; align-items: center; gap: 16px; }
.section-title { font-size: clamp(28px, 4vw, 42px); font-weight: 800; letter-spacing: -.5px; line-height: 1.15; }
.section-sub { color: var(--gray); max-width: 480px; font-size: 16px; }

/* ===================== HERO ===================== */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 120px 0 80px; position: relative; overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; pointer-events: none; }
.hero__grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(13,148,136,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13,148,136,.05) 1px, transparent 1px);
  background-size: 48px 48px;
}
.hero__blob {
  position: absolute; border-radius: 50%; filter: blur(80px); opacity: .4;
}
.hero__blob--1 { width: 500px; height: 500px; background: radial-gradient(circle, #99f6e4, transparent); top: -100px; right: -100px; animation: blob1 8s ease-in-out infinite; }
.hero__blob--2 { width: 400px; height: 400px; background: radial-gradient(circle, #bfdbfe, transparent); bottom: -80px; left: -80px; animation: blob1 10s ease-in-out infinite reverse; }
@keyframes blob1 { 0%,100%{transform:translate(0,0) scale(1)} 50%{transform:translate(30px,-20px) scale(1.1)} }

.hero__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.hero__copy { display: flex; flex-direction: column; gap: 24px; }
.hero__title { font-size: clamp(36px, 5vw, 58px); font-weight: 900; line-height: 1.1; letter-spacing: -1px; }
.gradient-text { background: linear-gradient(135deg, var(--teal), #3b82f6); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero__sub { color: var(--gray); font-size: 17px; max-width: 440px; }
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero__trust { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--gray); }
.hero__trust strong { color: var(--teal); font-weight: 700; }

/* HERO VISUAL */
.hero__visual { position: relative; display: flex; justify-content: center; align-items: center; }
.doc-card--main {
  background: var(--white); border-radius: var(--radius); padding: 24px;
  box-shadow: var(--shadow-lg); border: 1px solid var(--gray-border);
  width: 320px; position: relative; z-index: 2;
  animation: floatCard 6s ease-in-out infinite;
}
@keyframes floatCard { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
.doc-card__header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.doc-card__icon { font-size: 28px; }
.doc-card__label { font-weight: 700; font-size: 14px; }
.doc-card__status { font-size: 12px; font-weight: 500; margin-top: 2px; }
.status--processing { color: #f59e0b; }
.status--done { color: var(--teal); }
.doc-card__spinner {
  margin-left: auto; width: 20px; height: 20px; border: 2px solid var(--gray-border);
  border-top-color: var(--teal); border-radius: 50%; animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.doc-card__spinner.hidden { display: none; }
.field-row { display: flex; justify-content: space-between; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--gray-border); font-size: 13px; }
.field-row:last-child { border-bottom: none; }
.field-key { color: var(--gray); font-weight: 500; }
.field-val { font-weight: 600; color: var(--dark); font-size: 12px; text-align: right; max-width: 160px; }
.skeleton { background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%); background-size: 200% 100%; animation: shimmer 1.2s infinite; border-radius: 4px; min-width: 80px; height: 14px; color: transparent; }
@keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }
.doc-card__footer { display: flex; justify-content: space-between; align-items: center; margin-top: 16px; }
.accuracy-badge { font-size: 12px; font-weight: 600; color: var(--teal); }

.floating-chip {
  position: absolute; background: var(--white); border: 1px solid var(--gray-border);
  border-radius: 999px; padding: 8px 14px; font-size: 12px; font-weight: 600;
  box-shadow: var(--shadow); display: flex; align-items: center; gap: 6px; white-space: nowrap;
}
.floating-chip--1 { top: -20px; right: -40px; animation: floatChip1 7s ease-in-out infinite; }
.floating-chip--2 { bottom: 40px; right: -50px; animation: floatChip2 8s ease-in-out infinite; }
.floating-chip--3 { bottom: -20px; left: -40px; animation: floatChip3 6s ease-in-out infinite; }
@keyframes floatChip1 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(5px,-8px)} }
@keyframes floatChip2 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(-5px,6px)} }
@keyframes floatChip3 { 0%,100%{transform:translate(0,0)} 50%{transform:translate(8px,-4px)} }

/* ===================== LOGOS BAR ===================== */
.logos-bar { padding: 40px 0; border-top: 1px solid var(--gray-border); border-bottom: 1px solid var(--gray-border); background: var(--gray-light); }
.logos-bar__label { text-align: center; font-size: 12px; color: var(--gray); font-weight: 500; margin-bottom: 20px; text-transform: uppercase; letter-spacing: .8px; }
.logos-bar__track { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.logo-pill { background: var(--white); border: 1px solid var(--gray-border); border-radius: 999px; padding: 6px 16px; font-size: 13px; font-weight: 600; color: var(--gray); }

/* ===================== FEATURES ===================== */
.features { padding: 100px 0; background: var(--white); }
.features__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature-card--wide { grid-column: span 2; }
.feature-card {
  background: var(--gray-light); border-radius: var(--radius); padding: 28px;
  border: 1px solid var(--gray-border); transition: transform .2s, box-shadow .2s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.feature-card__icon { font-size: 28px; margin-bottom: 12px; }
.feature-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature-card p { color: var(--gray); font-size: 14px; line-height: 1.6; }
.feature-card__visual { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.model-bar { display: flex; align-items: center; gap: 10px; font-size: 12px; }
.model-bar span { width: 90px; color: var(--gray); font-weight: 500; }
.model-bar b { width: 36px; text-align: right; font-weight: 700; color: var(--dark); }
.bar { flex: 1; height: 8px; background: var(--gray-border); border-radius: 99px; overflow: hidden; }
.bar::after { content: ''; display: block; height: 100%; width: var(--w); background: var(--teal-light); border-radius: 99px; animation: barIn 1.2s ease forwards; }
.bar--accent::after { background: var(--teal); }
@keyframes barIn { from{width:0} to{width:var(--w)} }

/* ===================== DOCUMENTS ===================== */
.documents { padding: 100px 0; background: var(--gray-light); }
.docs-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.doc-type-card {
  background: var(--white); border-radius: var(--radius); padding: 24px;
  border: 1px solid var(--gray-border); cursor: pointer;
  transition: all .2s; position: relative; overflow: hidden;
}
.doc-type-card::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, transparent, rgba(13,148,136,.04)); opacity: 0; transition: opacity .2s; }
.doc-type-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--teal-light); }
.doc-type-card:hover::before { opacity: 1; }
.doc-type-card__icon { font-size: 28px; margin-bottom: 12px; }
.doc-type-card h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.doc-type-card p { font-size: 12px; color: var(--gray); line-height: 1.5; margin-bottom: 14px; }
.doc-type-card__tags { display: flex; gap: 6px; flex-wrap: wrap; }
.doc-type-card__tags span { background: #ccfbf1; color: var(--teal-dark); font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 99px; }

/* ===================== HOW IT WORKS ===================== */
.how { padding: 100px 0; background: var(--white); }
.steps { display: flex; align-items: flex-start; gap: 0; justify-content: center; }
.step { flex: 1; max-width: 280px; text-align: center; padding: 0 16px; }
.step__num {
  width: 64px; height: 64px; border-radius: 50%; background: var(--teal);
  color: var(--white); font-size: 24px; font-weight: 800; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px; box-shadow: 0 8px 24px rgba(13,148,136,.3);
}
.step h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.step p { font-size: 14px; color: var(--gray); }
.step__connector { flex-shrink: 0; width: 80px; height: 2px; background: linear-gradient(90deg, var(--teal), var(--teal-light)); margin-top: 32px; }

/* ===================== DEMO UPLOAD ===================== */
.demo-upload { padding: 100px 0; background: var(--gray-light); }
.demo-upload__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.demo-upload__copy { display: flex; flex-direction: column; gap: 20px; }
.demo-upload__copy h2 { font-size: clamp(28px, 3.5vw, 38px); font-weight: 800; line-height: 1.15; letter-spacing: -.5px; }
.demo-upload__copy p { color: var(--gray); font-size: 16px; }
.demo-upload__list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.demo-upload__list li { font-size: 14px; font-weight: 500; }

.upload-zone {
  background: var(--white); border: 2px dashed var(--gray-border);
  border-radius: var(--radius); padding: 48px 32px; text-align: center;
  transition: border-color .2s, background .2s; cursor: pointer; position: relative; overflow: hidden;
}
.upload-zone:hover, .upload-zone.dragover { border-color: var(--teal); background: #f0fdfa; }
.upload-zone__icon { font-size: 40px; margin-bottom: 12px; }
.upload-zone__title { font-size: 16px; font-weight: 700; margin-bottom: 6px; }
.upload-zone__sub { font-size: 14px; color: var(--gray); margin-bottom: 8px; }
.upload-zone__formats { font-size: 12px; color: var(--gray); }
.upload-zone__overlay {
  position: absolute; inset: 0; background: rgba(255,255,255,.95);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px;
}
.upload-spinner { width: 40px; height: 40px; border: 3px solid var(--gray-border); border-top-color: var(--teal); border-radius: 50%; animation: spin .8s linear infinite; }
.upload-zone__overlay p { font-weight: 600; color: var(--gray); }

.result-panel { background: var(--white); border-radius: var(--radius); border: 1px solid var(--gray-border); overflow: hidden; }
.result-panel__header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--gray-border); background: var(--gray-light); }
.result-panel__label { font-size: 13px; font-weight: 700; }
.result-panel__badge { font-size: 12px; color: var(--teal); font-weight: 600; }
.result-panel__json { padding: 20px; font-size: 12px; font-family: 'Courier New', monospace; color: var(--dark); background: #0f172a; color: #e2e8f0; line-height: 1.7; max-height: 280px; overflow-y: auto; }
.result-panel__actions { display: flex; gap: 10px; padding: 16px 20px; }

/* ===================== STATS ===================== */
.stats { padding: 80px 0; background: var(--white); }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat-item__num { font-size: clamp(36px, 5vw, 52px); font-weight: 900; color: var(--teal); letter-spacing: -1px; }
.stat-item__label { font-size: 14px; color: var(--gray); font-weight: 500; margin-top: 4px; }

/* ===================== PRICING ===================== */
.pricing { padding: 100px 0; background: var(--gray-light); }
.pricing__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; max-width: 900px; margin: 0 auto; }
.pricing-card {
  background: var(--white); border-radius: var(--radius); padding: 32px;
  border: 1px solid var(--gray-border); position: relative; display: flex; flex-direction: column; gap: 20px;
  transition: transform .2s, box-shadow .2s;
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.pricing-card--featured { background: var(--dark); border-color: var(--dark); transform: scale(1.04); }
.pricing-card--featured:hover { transform: scale(1.04) translateY(-4px); }
.pricing-card--featured .pricing-card__name,
.pricing-card--featured .pricing-card__price,
.pricing-card--featured .pricing-card__period,
.pricing-card--featured ul li { color: var(--white); }
.pricing-card__badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--teal); color: var(--white); font-size: 11px; font-weight: 700; padding: 4px 12px; border-radius: 99px; white-space: nowrap; }
.pricing-card__name { font-size: 16px; font-weight: 700; color: var(--gray); }
.pricing-card__price { font-size: 36px; font-weight: 900; letter-spacing: -1px; }
.pricing-card__period { font-size: 12px; color: var(--gray); margin-top: -14px; }
.pricing-card__features { list-style: none; display: flex; flex-direction: column; gap: 10px; font-size: 13px; flex: 1; }
.pricing-card--featured .btn--outline { border-color: rgba(255,255,255,.3); color: var(--white); }
.pricing-card--featured .btn--outline:hover { background: rgba(255,255,255,.1); }

/* ===================== CTA DARK ===================== */
.cta-dark { background: var(--dark); padding: 100px 0; }
.cta-dark__inner { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 20px; }
.cta-dark__inner h2 { font-size: clamp(28px, 4vw, 44px); font-weight: 800; color: var(--white); line-height: 1.15; }
.cta-dark__inner p { color: #94a3b8; font-size: 16px; }
.cta-dark__actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

/* ===================== FOOTER ===================== */
.footer { background: var(--dark); border-top: 1px solid rgba(255,255,255,.08); padding: 60px 0 0; }
.footer__inner { display: flex; gap: 60px; }
.footer__brand { flex: 1; display: flex; flex-direction: column; gap: 12px; }
.footer__brand .logo-text { color: var(--white); }
.footer__brand p { font-size: 13px; color: #64748b; line-height: 1.6; }
.footer__cols { display: flex; gap: 48px; }
.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col h5 { font-size: 13px; font-weight: 700; color: var(--white); margin-bottom: 4px; }
.footer__col a { font-size: 13px; color: #64748b; text-decoration: none; transition: color .2s; }
.footer__col a:hover { color: var(--white); }
.footer__bottom { border-top: 1px solid rgba(255,255,255,.08); margin-top: 40px; padding: 20px 0; }
.footer__bottom .container { display: flex; justify-content: space-between; font-size: 12px; color: #475569; }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 1024px) {
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .feature-card--wide { grid-column: span 2; }
  .docs-grid { grid-template-columns: repeat(2, 1fr); }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__actions { display: none; }
  .nav__burger { display: flex; }
  .hero__inner { grid-template-columns: 1fr; gap: 32px; }
  .hero__visual { display: none; }
  .hero { padding: 100px 0 60px; }
  .hero__title { font-size: clamp(30px, 8vw, 46px); }
  .hero__sub { font-size: 15px; }
  .hero__cta { flex-direction: column; align-items: flex-start; }
  .demo-upload__inner { grid-template-columns: 1fr; }
  .steps { flex-direction: column; align-items: center; }
  .step__connector { width: 2px; height: 40px; }
  .pricing__grid { grid-template-columns: 1fr !important; max-width: 440px !important; }
  .pricing-card--featured { transform: none; }
  .footer__inner { flex-direction: column; gap: 32px; }
  .footer__cols { flex-direction: column; gap: 24px; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .section-header { margin-bottom: 36px; }
  .features { padding: 64px 0; }
  .documents { padding: 64px 0; }
  .how { padding: 64px 0; }
  .pricing { padding: 64px 0; }
}

@media (max-width: 480px) {
  .docs-grid { grid-template-columns: 1fr; }
  .features__grid { grid-template-columns: 1fr; }
  .feature-card--wide { grid-column: span 1; }
  .stats__grid { grid-template-columns: repeat(2, 1fr); }
}