/* ===== DESIGN SYSTEM ===== */
:root {
  --bg: #0d0d0d;
  --bg-card: #1a1a1a;
  --accent: #FF6B35;
  --accent-hover: #FF8C5A;
  --text: #FFFFFF;
  --text-muted: #888888;
  --border: rgba(255, 255, 255, 0.1);
  --card-green: #4ADE80;
  --card-yellow: #FACC15;
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1 { font-size: 48px; font-weight: 600; line-height: 1.15; letter-spacing: -0.5px; }
h2 { font-size: 34px; font-weight: 600; line-height: 1.25; letter-spacing: -0.3px; }
h3 { font-size: 20px; font-weight: 600; }
p  { color: var(--text-muted); }

/* ===== UTILITIES ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.accent { color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.35);
}

.btn-dark {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-dark:hover {
  background: rgba(255, 255, 255, 0.14);
}

/* ===== BACKGROUND GLOW ===== */
body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}
body::before {
  width: 900px;
  height: 900px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.28) 0%, transparent 65%);
  filter: blur(80px);
  bottom: -200px;
  left: -200px;
}
body::after {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(255, 140, 60, 0.22) 0%, transparent 65%);
  filter: blur(80px);
  top: -100px;
  right: -150px;
}

.glow {
  position: fixed;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.55) 0%, transparent 70%);
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in {
  opacity: 0;
  transition: opacity 0.5s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in.visible {
  opacity: 1;
}

/* ===== FAQ ANIMATION ===== */
@keyframes fade-in-down {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 72px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
  white-space: nowrap;
  flex-shrink: 0;
}

.nav {
  display: flex;
  gap: 28px;
  flex: 1;
  justify-content: center;
}
.nav a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 15px;
  transition: color var(--transition);
}
.nav a:hover { color: var(--text); }

.header-cta { padding: 10px 20px; font-size: 14px; }

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
  position: relative;
  z-index: 110;
  -webkit-tap-highlight-color: transparent;
}
.burger span {
  display: block;
  width: 28px;
  height: 3px;
  background: #FFFFFF;
  border-radius: 2px;
  transition: var(--transition);
}

@media (max-width: 768px) {
  .header-inner {
    gap: 12px;
  }
  .nav { display: none !important; }
  .header-cta {
    margin-left: auto;
    padding: 8px 16px;
    font-size: 13px;
  }
  .burger { display: flex !important; margin-left: 0; }

  .nav.open {
    display: flex !important;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(13, 13, 13, 0.97);
    padding: 24px;
    border-bottom: 1px solid var(--border);
    gap: 20px;
    z-index: 100;
  }
  .nav.open .nav-cta-mobile { display: inline-flex !important; }
}

.nav-cta-mobile {
  display: none;
  padding: 12px 24px;
  font-size: 15px;
  align-self: flex-start;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 32px;
  position: relative;
  z-index: 1;
}

.badge {
  display: inline-block;
  background: rgba(255, 107, 53, 0.15);
  color: var(--accent);
  border: 1px solid rgba(255, 107, 53, 0.3);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 16px;
}

.hero-content h1 { margin-bottom: 16px; }
.hero-sub {
  font-size: 20px;
  max-width: 560px;
  margin: 0 auto 32px;
  color: var(--text-muted);
}
.hero-input-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 500px;
  margin: 24px auto 0;
  padding: 16px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50px;
}
.hero-input-icon { font-size: 20px; flex-shrink: 0; }
.hero-input-text {
  font-size: 16px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
}
.hero-input-cursor {
  color: var(--accent);
  font-weight: 300;
  animation: blink 1s step-end infinite;
}
@keyframes blink {
  50% { opacity: 0; }
}

.hero-btn { font-size: 18px; padding: 16px 36px; }

/* ===== CAROUSEL ===== */
.hero-carousel-wrap { width: 100%; }

.carousel {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.carousel-track {
  display: flex;
  gap: 16px;
  animation: scroll-left 20s linear infinite;
  width: max-content;
}

.cover-card {
  flex-shrink: 0;
  width: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.cover-card-img {
  position: relative;
  width: 180px;
  height: 180px;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  overflow: hidden;
}
.cover-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.cover-card-img::after {
  content: '▶';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
  background: rgba(255, 107, 53, 0.85);
  border-radius: 50%;
  z-index: 2;
  padding-left: 3px;
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
}
.cover-card span {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.3;
}
/* Fallback when no image loaded */
.cover-card:not(:has(img[src])) {
  align-items: center;
  justify-content: center;
  border: 1px dashed rgba(255, 107, 53, 0.4);
}

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

@media (prefers-reduced-motion: reduce) {
  .carousel-track { animation: none; }
  .fade-up, .fade-in { transition: none; }
}

/* ===== STATS ===== */
.stats {
  padding: 100px 0;
  text-align: center;
}

.stats-grid {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 40px;
}

.stat-card {
  flex: 1;
  max-width: 260px;
  padding: 36px 24px;
  background: linear-gradient(145deg, rgba(255, 220, 180, 0.08), rgba(255, 180, 120, 0.04));
  border: 1px solid rgba(255, 200, 150, 0.12);
  border-radius: var(--radius);
  transition: var(--transition);
}
.stat-card:hover {
  background: linear-gradient(145deg, rgba(255, 220, 180, 0.12), rgba(255, 180, 120, 0.07));
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(255, 180, 120, 0.08);
}

.stat-value {
  font-size: 44px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  color: var(--text-muted);
  font-size: 15px;
}

/* ===== SECTION TITLE ===== */
.section-title {
  text-align: center;
  margin-bottom: 48px;
}

/* ===== FEATURES ===== */
.features { padding: 100px 0; }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: 0 12px 40px rgba(255, 107, 53, 0.1);
}

.feature-card-img {
  width: 100%;
  height: 180px;
  overflow: hidden;
}
.feature-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.feature-card:hover .feature-card-img img {
  transform: scale(1.05);
}

.feature-card-body {
  padding: 24px;
}
.feature-card-body h3 {
  color: var(--text);
  margin-bottom: 8px;
}
.feature-card-body p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* ===== ABOUT ===== */
.about { padding: 100px 0; }

.about-inner,
.for-whom-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.section-img {
  width: 100%;
  max-width: 400px;
  border-radius: var(--radius);
  object-fit: cover;
}

.label-text {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 12px;
  color: var(--accent) !important;
  font-weight: 600;
  margin-bottom: 16px;
}

.about-desc {
  margin: 20px 0 32px;
  font-size: 17px;
  line-height: 1.7;
}

.about-list,
.for-whom-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 24px;
}
.about-list li,
.for-whom-list li {
  color: var(--text);
  font-size: 15px;
  font-weight: 400;
  padding-left: 20px;
  position: relative;
  line-height: 1.6;
}
.about-list li::before,
.for-whom-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* ===== FOR WHOM ===== */
.for-whom { padding: 100px 0; }

.about-visual { position: relative; }
.for-whom-visual { position: relative; }

/* ===== USE CASES ===== */
.use-cases { padding: 100px 0; }

.use-cases-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.use-cases-list {
  list-style: none;
  margin: 16px 0 32px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.use-cases-list li {
  color: var(--text-muted);
  padding-left: 20px;
  position: relative;
}
.use-cases-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.use-cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.use-case-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  transition: var(--transition);
}
.use-case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 200, 150, 0.2);
}
.use-case-card img {
  width: 100%;
  display: block;
}
.uc-title {
  font-weight: 500;
  font-size: 15px;
  color: var(--text);
  padding: 14px;
}

/* ===== FAQ ===== */
.faq { padding: 100px 0; }

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  padding: 20px 24px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text);
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 20px;
  color: var(--accent);
  flex-shrink: 0;
}
.faq-item[open] summary::after {
  content: "×";
}

.faq-answer {
  padding: 0 24px 20px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== FINAL CTA ===== */
.final-cta {
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.final-cta-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 107, 53, 0.15) 0%, rgba(255, 160, 80, 0.06) 40%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.final-cta-eyebrow {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.final-cta-heading {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 0;
}

.final-cta-sub {
  font-size: 18px;
  margin: 20px auto 36px;
  max-width: 500px;
  color: var(--text-muted);
}

.final-cta-covers {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 56px;
}

.final-cta-covers img {
  width: 100px;
  height: 100px;
  border-radius: 16px;
  object-fit: cover;
  opacity: 0.7;
  transition: opacity 0.3s ease, transform 0.3s ease;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.final-cta-covers img:hover {
  opacity: 1;
  transform: translateY(-4px);
}

.btn-lg {
  font-size: 18px;
  padding: 16px 36px;
}

/* ===== FOOTER ===== */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  margin-top: 60px;
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.footer-nav {
  display: flex;
  gap: 24px;
  flex: 1;
}
.footer-nav a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 14px;
  transition: color var(--transition);
}
.footer-nav a:hover { color: var(--text); }

.footer-copy {
  font-size: 13px;
  color: var(--text-muted) !important;
  margin-left: auto;
}

/* ===== MOBILE 768px ===== */
@media (max-width: 768px) {
  h1 { font-size: 28px; }
  h2 { font-size: 24px; }

  .hero {
    min-height: 100dvh;
    padding: 96px 0 40px;
    overflow: hidden;
  }
  .hero-inner { gap: 24px; width: 100%; }
  .hero-content h1 { word-wrap: break-word; overflow-wrap: break-word; }
  .hero-sub { font-size: 16px; margin-bottom: 16px; max-width: 100%; }
  .hero-input-wrap { max-width: 320px; padding: 12px 18px; gap: 10px; }
  .hero-input-text { font-size: 14px; }
  .hero-btn { font-size: 16px; padding: 14px 28px; }
  .badge { font-size: 12px; padding: 5px 12px; }

  .cover-card { width: 120px; }
  .cover-card-img { width: 120px; height: 120px; }
  .cover-card-img::after { width: 32px; height: 32px; font-size: 12px; }
  .cover-card span { font-size: 11px; }

  .stats,
  .features,
  .about,
  .for-whom,
  .use-cases,
  .faq { padding: 60px 0; }

  .stats-grid { flex-direction: column; align-items: center; gap: 16px; }
  .stat-card { max-width: 100%; width: 100%; padding: 28px 16px; }
  .stat-value { font-size: 32px; }

  .features-grid { grid-template-columns: 1fr; }

  .about-inner,
  .for-whom-inner { grid-template-columns: 1fr; gap: 32px; }
  .about-visual,
  .for-whom-visual { order: -1; text-align: center; }
  .section-img { max-width: 280px; margin: 0 auto; display: block; }

  .use-cases-inner { grid-template-columns: 1fr; gap: 32px; }
  .use-cases-grid { grid-template-columns: 1fr 1fr; }

  .faq-item summary { padding: 16px 18px; font-size: 15px; }
  .faq-answer { padding: 0 18px 16px; font-size: 14px; }

  .final-cta { padding: 60px 0 48px; overflow: visible; }
  .final-cta-glow { width: 400px; height: 300px; }
  .final-cta-heading { font-size: 24px; word-wrap: break-word; overflow-wrap: break-word; }
  .final-cta-eyebrow { font-size: 12px; }
  .final-cta-sub { font-size: 15px; margin: 16px auto 28px; max-width: 100%; }
  .final-cta-covers { gap: 10px; margin-top: 32px; flex-wrap: wrap; justify-content: center; }
  .final-cta-covers img { width: 56px; height: 56px; border-radius: 12px; }
  .btn-lg { font-size: 16px; padding: 14px 28px; }

  .footer { margin-top: 20px; padding: 32px 0; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 16px; }
  .footer-nav { flex-wrap: wrap; gap: 14px; }
  .footer-copy { margin-left: 0; }

  body::before { width: 400px; height: 400px; }
  body::after { width: 300px; height: 300px; }
  .glow { width: 300px; height: 300px; }
}

/* ===== MOBILE 480px ===== */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  h1 { font-size: 24px; }
  h2 { font-size: 20px; }
  .hero-sub { font-size: 15px; }
  .hero-input-text { font-size: 13px; }
  .cover-card { width: 100px; }
  .cover-card-img { width: 100px; height: 100px; }
  .cover-card-img::after { width: 30px; height: 30px; font-size: 11px; }
  .stat-value { font-size: 28px; }
  .feature-card-body { padding: 16px; }
  .use-cases-grid { grid-template-columns: 1fr; }
  .final-cta-heading { font-size: 22px; }
  .final-cta-glow { width: 280px; height: 200px; }
  .final-cta-covers img { width: 44px; height: 44px; border-radius: 8px; }
}