/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { min-height: 100vh; }

/* ── Custom Properties ── */
:root {
  --teal-600: #0d9488;
  --teal-500: #14b8a6;
  --teal-200: #99f6e4;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
}

/* ── Header Scroll State ── */
#site-header {
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, backdrop-filter 0.4s ease;
}
#site-header.scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}
#site-header.scrolled .font-heading { color: var(--slate-900); }
#site-header.scrolled .nav-link { color: #475569; }

/* ── Hero Gradient ── */
.hero-gradient {
  background: linear-gradient(135deg, #0f766e 0%, #0d9488 25%, #14b8a6 50%, #0f766e 75%, #115e59 100%);
}

/* ── Hero Geometric Shapes ── */
.hero-shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.12;
  animation: float 8s ease-in-out infinite;
}
.hero-shape.circle-1 {
  width: 420px; height: 420px;
  background: #5eead4;
  top: -5%; left: -8%;
  animation-delay: 0s;
}
.hero-shape.circle-2 {
  width: 260px; height: 260px;
  background: #2dd4bf;
  top: 15%; right: -4%;
  animation-delay: -2s;
}
.hero-shape.circle-3 {
  width: 180px; height: 180px;
  background: #99f6e4;
  bottom: 10%; left: 5%;
  animation-delay: -4s;
}
.hero-shape.rect-1 {
  width: 120px; height: 120px;
  background: #2dd4bf;
  border-radius: 24px;
  top: 25%; right: 10%;
  transform: rotate(45deg);
  opacity: 0.15;
  animation: spin-slow 20s linear infinite;
  animation-delay: -3s;
}
.hero-shape.rect-2 {
  width: 80px; height: 80px;
  background: #5eead4;
  border-radius: 16px;
  bottom: 25%; right: 20%;
  transform: rotate(20deg);
  opacity: 0.18;
  animation: spin-slow 15s linear infinite reverse;
}
.hero-shape.dot-grid {
  width: 160px; height: 160px;
  background-image: radial-gradient(circle, rgba(255,255,255,0.4) 1.5px, transparent 1.5px);
  background-size: 16px 16px;
  border-radius: 0;
  bottom: 15%; left: 15%;
  opacity: 0.5;
  animation: float 10s ease-in-out infinite;
  animation-delay: -1s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-24px) rotate(4deg); }
}
@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ── Hero Animations ── */
.hero-badge { animation: fadeUp 0.8s ease both; }
.hero-badge { animation-delay: 0.1s; }
h1 { animation: fadeUp 0.8s ease both; animation-delay: 0.3s; }
.hero-gradient + div > p { animation: fadeUp 0.8s ease both; animation-delay: 0.5s; }
.hero-gradient + div > div { animation: fadeUp 0.8s ease both; animation-delay: 0.7s; }
.hero-gradient + div > div:last-child { animation: fadeUp 0.8s ease both; animation-delay: 0.9s; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Buttons ── */
.btn-primary {
  background: var(--teal-600);
  color: white;
  border-radius: 9999px;
  padding: 0.875rem 1.75rem;
  font-weight: 600;
  transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
  box-shadow: 0 4px 20px rgba(13,148,136,0.35);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.btn-primary:hover {
  background: #0f766e;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(13,148,136,0.45);
}
.btn-secondary {
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  color: white;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 9999px;
  padding: 0.875rem 1.75rem;
  font-weight: 600;
  transition: background 0.3s, transform 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.22);
  transform: translateY(-2px);
}

/* ── Tags ── */
.tag-teal {
  background: #ccfbf1;
  color: #0d9488;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  letter-spacing: 0.02em;
}
.tag-teal-light {
  background: rgba(14,165,145,0.2);
  color: #5eead4;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  letter-spacing: 0.02em;
}

/* ── Service Cards ── */
.service-card { cursor: default; }

/* ── Testimonial Cards ── */
.testimonial-card { cursor: default; }

/* ── FAQ ── */
.faq-item { transition: border-color 0.3s; }
.faq-item:hover { border-color: #99f6e4; }
.faq-content { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; }
.faq-content.open { max-height: 200px; }
.faq-icon { transition: transform 0.3s ease; }
.faq-item.active .faq-icon { transform: rotate(45deg); }

/* ── Inputs ── */
.input-field {
  background: white;
  border: 1.5px solid #e2e8f0;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  color: #1e293b;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  font-family: inherit;
  width: 100%;
}
.input-field:focus {
  border-color: var(--teal-500);
  box-shadow: 0 0 0 3px rgba(20,184,166,0.15);
}
.input-field::placeholder { color: #94a3b8; }

/* ── CTA Section ── */
.cta-gradient {
  background: linear-gradient(135deg, #0f766e 0%, #0d9488 40%, #14b8a6 100%);
}
.cta-shape.circle-a {
  width: 300px; height: 300px;
  background: rgba(94,234,212,0.2);
  border-radius: 50%;
  top: -10%; left: -5%;
  animation: float 10s ease-in-out infinite;
}
.cta-shape.circle-b {
  width: 200px; height: 200px;
  background: rgba(45,212,191,0.15);
  border-radius: 50%;
  bottom: -5%; right: 5%;
  animation: float 8s ease-in-out infinite;
  animation-delay: -3s;
}

/* ── Scroll Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Mobile Menu ── */
.mobile-nav-link {
  display: block;
  padding: 0.75rem 0;
  border-bottom: 1px solid #f1f5f9;
  transition: color 0.2s;
}
.mobile-nav-link:hover { color: #0d9488; }

/* ── Responsive ── */
@media (max-width: 767px) {
  .hero-shape.circle-1 { width: 250px; height: 250px; }
  .hero-shape.circle-2 { width: 160px; height: 160px; }
  .hero-shape.circle-3 { width: 100px; height: 100px; }
  .hero-shape.rect-1 { width: 70px; height: 70px; }
  .hero-shape.rect-2 { width: 50px; height: 50px; }
  .hero-shape.dot-grid { width: 100px; height: 100px; }
}