/* ─── Base & Utilities ─── */
:root {
  --teal-50: #f0fdfa;
  --teal-100: #ccfbf1;
  --teal-200: #99f6e4;
  --teal-300: #5eead4;
  --teal-400: #2dd4bf;
  --teal-500: #14b8a6;
  --teal-600: #0d9488;
  --teal-700: #0f766e;
  --teal-800: #115e59;
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: var(--slate-700);
  background: #fff;
  overflow-x: hidden;
}

.font-playfair {
  font-family: 'Playfair Display', serif;
}

.font-inter {
  font-family: 'Inter', sans-serif;
}

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

img {
  max-width: 100%;
  height: auto;
}

/* ─── Buttons ─── */
.btn-primary {
  background: linear-gradient(135deg, var(--teal-600) 0%, var(--teal-700) 100%);
  transition: all 0.3s ease;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--teal-700) 0%, var(--teal-800) 100%);
}

.btn-secondary {
  background: transparent;
  transition: all 0.3s ease;
}

/* ─── Service Cards ─── */
.service-card {
  background: #fff;
  border-radius: 1.5rem;
  padding: 2rem;
  border: 1px solid var(--slate-100);
  transition: all 0.4s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(13, 148, 136, 0.1);
  border-color: var(--teal-100);
}

/* ─── Navigation ─── */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--teal-600);
  transition: width 0.3s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.mobile-link {
  display: block;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--slate-100);
  transition: color 0.2s ease;
}

.mobile-link:hover {
  color: var(--teal-700);
}

/* ─── Reveal Animations (progressive enhancement) ─── */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }

  .reveal.revealed {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ─── Mobile Menu ─── */
#mobile-menu.open {
  display: flex;
}

/* ─── Form Styling ─── */
input:focus,
select:focus,
textarea:focus {
  outline: none;
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--slate-50);
}

::-webkit-scrollbar-thumb {
  background: var(--teal-200);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--teal-400);
}