:root {
  --bg: #FAFBFD;
  --bg-soft: #F0F4F8;
  --surface: rgba(255, 255, 255, 0.85);
  --surface-strong: rgba(255, 255, 255, 0.95);
  --line: rgba(16, 42, 67, 0.1);
  --text: #102A43;
  --text-soft: #486581;
  --primary: #0B897B;
  --primary-strong: #097068;
  --primary-light: #E6F7F5;
  --accent: #FF7043;
  --accent-light: #FFF0EB;
  --danger: #D32F2F;
  --danger-light: #FDEAEA;
  --shadow: 0 4px 24px rgba(16, 42, 67, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Sora', 'IBM Plex Sans Arabic', 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
}

a {
  color: inherit;
  text-decoration: none;
}

img,
video {
  max-width: 100%;
  display: block;
}

.container {
  width: min(1140px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(250, 251, 253, 0.88);
  border-bottom: 1px solid transparent;
  transition: background 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 2px 16px rgba(16, 42, 67, 0.06);
}

.nav-shell {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.3px;
}

.brand-mark {
  width: 60px;
  height: 60px;
  flex-shrink: 0;
  border-radius: 8px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.nav-link {
  color: var(--text-soft);
  font-size: 0.95rem;
  transition: color 180ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--text);
}

.audience-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
}

.audience-link {
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-soft);
  transition: background 180ms ease, color 180ms ease;
}

.audience-link.is-active {
  color: #fff;
  background: linear-gradient(120deg, var(--primary), #0FADA0);
  font-weight: 700;
}

.menu-toggle {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--text);
  border-radius: 10px;
  width: 42px;
  height: 42px;
  display: none;
  align-items: center;
  justify-content: center;
}

.mobile-menu {
  display: none;
  padding: 0 0 1.1rem;
}

.mobile-menu.is-open {
  display: block;
}

.mobile-menu-inner {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  padding: 0.9rem;
  display: grid;
  gap: 0.5rem;
}

.mobile-menu .nav-link {
  padding: 0.65rem;
  border-radius: 10px;
}

.mobile-menu .nav-link:hover {
  background: var(--primary-light);
}

.button {
  border: 0;
  cursor: pointer;
  font: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 0.9rem 1.35rem;
  font-weight: 600;
  transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.button-primary {
  color: #fff;
  background: linear-gradient(130deg, var(--primary), #0FADA0);
  box-shadow: 0 8px 24px rgba(11, 137, 123, 0.25);
}

.button-secondary {
  color: var(--text);
  border: 1px solid var(--line);
  background: #fff;
}

.button-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

@keyframes ctaPulse {
  0%, 100% { box-shadow: 0 8px 24px rgba(11,137,123,0.25); }
  50%      { box-shadow: 0 8px 32px rgba(11,137,123,0.4); }
}

.hero .button-primary {
  animation: ctaPulse 3s ease-in-out infinite;
}
.hero .button-primary:hover {
  animation: none;
  box-shadow: 0 12px 36px rgba(11,137,123,0.35);
}

@keyframes heroGradient {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero {
  padding: 5.8rem 0 3.8rem;
  background: linear-gradient(135deg, var(--primary-light) 0%, #E6F7F5 25%, var(--bg) 50%, #F0F4F8 75%, var(--primary-light) 100%);
  background-size: 300% 300%;
  animation: heroGradient 12s ease infinite;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(11, 137, 123, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.hero-ecg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero .container {
  width: min(1380px, 96vw);
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(540px, 760px);
  gap: 2.2rem;
  align-items: center;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  border: 1px solid rgba(11, 137, 123, 0.2);
  background-image: linear-gradient(110deg, var(--primary-light) 0%, var(--primary-light) 40%, rgba(11,137,123,0.12) 50%, var(--primary-light) 60%, var(--primary-light) 100%);
  background-size: 200% 100%;
  animation: badgeShimmer 4s ease-in-out infinite;
  color: var(--primary);
  font-size: 0.78rem;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  font-weight: 700;
  padding: 0.5rem 0.85rem;
}

.hero h1 {
  margin: 1rem 0 1rem;
  font-size: clamp(2.2rem, 5.2vw, 4.2rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
}

.hero p {
  margin: 0;
  color: var(--text-soft);
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  line-height: 1.7;
}

.hero-actions {
  margin-top: 1.6rem;
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.hero-proof {
  margin-top: 1.4rem;
  display: grid;
  gap: 0.6rem;
  color: var(--text-soft);
  font-size: 0.94rem;
}

.hero-proof span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-proof span::before {
  content: '';
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%230B897B'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

.video-shell {
  position: relative;
  border-radius: 0;
  overflow: visible;
  border: 0;
  background: transparent;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
}

.hero-video,
.hero-image-fallback {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.hero-image-fallback {
  display: none;
}

.section {
  padding: 3.9rem 0;
}

.section:nth-of-type(even) {
  background: var(--bg-soft);
}

.section-heading {
  margin-bottom: 1.7rem;
}

.section-kicker {
  color: var(--primary);
  font-size: 0.78rem;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.section h2 {
  margin: 0;
  font-size: clamp(1.75rem, 3.6vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.section-lead {
  margin-top: 0.7rem;
  max-width: 740px;
  color: var(--text-soft);
  line-height: 1.7;
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 1rem;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.surface-card {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  padding: 1.15rem 1.15rem 1.2rem;
  box-shadow: var(--shadow);
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.surface-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(16, 42, 67, 0.12), inset 3px 0 0 var(--primary);
}

.surface-card h3 {
  margin: 0.25rem 0 0.6rem;
  font-size: 1.1rem;
}

.surface-card p {
  margin: 0;
  color: var(--text-soft);
  line-height: 1.65;
  font-size: 1rem;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  transition: transform 300ms ease, background 300ms ease, color 300ms ease, box-shadow 300ms ease;
}

.surface-card:hover .feature-icon {
  transform: scale(1.1) rotate(-3deg);
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(11,137,123,0.25);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
}

.timeline {
  display: grid;
  gap: 0.8rem;
}

.timeline-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem;
  align-items: start;
  transition: transform 200ms ease, background 200ms ease;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  margin: -0.5rem;
}

.timeline-index {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(130deg, var(--primary), #0FADA0);
  color: #fff;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.timeline-step:hover {
  background: var(--primary-light);
  transform: translateX(4px);
}
.timeline-step:hover .timeline-index {
  transform: scale(1.08);
  box-shadow: 0 4px 12px rgba(11,137,123,0.3);
}

.timeline-step p {
  margin: 0.2rem 0 0;
  color: var(--text-soft);
  font-size: 0.94rem;
  line-height: 1.65;
}

.split-panel {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 1rem;
}

.notice {
  border: 1px solid rgba(211, 47, 47, 0.25);
  background: var(--danger-light);
  border-radius: var(--radius-sm);
  color: var(--danger);
  padding: 0.85rem 1rem;
  font-size: 0.88rem;
  line-height: 1.55;
}

.form-card {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface-strong);
  box-shadow: var(--shadow);
  padding: 1.1rem;
}

.waitlist-form {
  display: grid;
  gap: 0.74rem;
}

.input,
.select,
.textarea {
  width: 100%;
  border: 1px solid rgba(16, 42, 67, 0.18);
  background: #fff;
  color: var(--text);
  border-radius: 12px;
  padding: 0.8rem 0.85rem;
  font: inherit;
}

.input::placeholder,
.textarea::placeholder {
  color: rgba(72, 101, 129, 0.6);
}

.input:focus,
.select:focus,
.textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(11, 137, 123, 0.15);
}

.form-row {
  display: grid;
  gap: 0.74rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-note {
  margin: 0;
  color: var(--text-soft);
  font-size: 0.83rem;
  line-height: 1.55;
}

.form-card .button-primary {
  background: linear-gradient(130deg, var(--accent), #FF8A65);
  box-shadow: 0 8px 24px rgba(255, 112, 67, 0.25);
}

.message {
  display: none;
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  font-size: 0.9rem;
}

.message.is-visible {
  display: block;
}

.message.success {
  border: 1px solid rgba(11, 137, 123, 0.3);
  background: var(--primary-light);
  color: var(--primary-strong);
}

.message.error {
  border: 1px solid rgba(211, 47, 47, 0.3);
  background: var(--danger-light);
  color: var(--danger);
}

.grid-3 > .reveal:nth-child(2) { transition-delay: 120ms; }
.grid-3 > .reveal:nth-child(3) { transition-delay: 240ms; }
.grid-3 > .reveal:nth-child(4) { transition-delay: 360ms; }
.grid-3 > .reveal:nth-child(5) { transition-delay: 480ms; }
.grid-3 > .reveal:nth-child(6) { transition-delay: 600ms; }
.grid-2 > .reveal:nth-child(2) { transition-delay: 120ms; }
.split-panel > .reveal:nth-child(2) { transition-delay: 150ms; }

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 460ms ease, transform 460ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-card {
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: #fff;
  padding: 1.15rem 1.15rem 1.2rem;
  box-shadow: var(--shadow);
}

.footer {
  padding: 3rem 0 2.2rem;
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--text-soft);
}

.footer-shell {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

@media (max-width: 1080px) {
  .hero .container {
    width: min(1140px, 92vw);
  }

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

  .split-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-2,
  .form-row {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .video-shell {
    width: min(100%, 520px);
    margin: 0 auto;
    aspect-ratio: 4 / 5;
    overflow: hidden;
  }

  .hero-video,
  .hero-image-fallback {
    object-fit: cover;
    object-position: center;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 4.4rem;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }

  .video-shell {
    width: min(100%, 440px);
    aspect-ratio: 10 / 13;
  }

  .footer-shell {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero-video {
    display: none;
  }

  .hero-image-fallback {
    display: block;
  }

  .hero { animation: none; }
  .hero .button-primary { animation: none; }
  .badge { animation: none; }
  .feature-icon, .timeline-step, .timeline-index { transition: none; }
  .grid-3 > .reveal, .grid-2 > .reveal, .split-panel > .reveal { transition-delay: 0ms !important; }
}