/* ═══════════════════════════════════════════
   Comment & Convert — Global Stylesheet
   Theme: Teal & Slate Professional
═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --teal:       #0D9488;
  --teal-dark:  #0F766E;
  --teal-light: #14B8A6;
  --teal-pale:  #F0FDFA;
  --teal-mid:   #CCFBF1;
  --slate-900:  #0F172A;
  --slate-800:  #1E293B;
  --slate-700:  #334155;
  --slate-600:  #475569;
  --slate-400:  #94A3B8;
  --slate-200:  #E2E8F0;
  --slate-100:  #F1F5F9;
  --slate-50:   #F8FAFC;
  --white:      #FFFFFF;
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.12);
  --shadow-teal:0 4px 20px rgba(13,148,136,0.25);
  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  color: var(--slate-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4 { font-family: 'Playfair Display', Georgia, serif; line-height: 1.2; }
h1 { font-size: clamp(2.2rem, 4.5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); }
h3 { font-size: 1.3rem; }
p  { color: var(--slate-600); line-height: 1.75; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 0.85rem 2rem; border-radius: 50px;
  font-family: 'DM Sans', sans-serif; font-size: 0.95rem; font-weight: 600;
  cursor: pointer; border: none; text-decoration: none;
  transition: all 0.22s ease; white-space: nowrap;
}
.btn-primary {
  background: var(--teal); color: var(--white);
  box-shadow: var(--shadow-teal);
}
.btn-primary:hover { background: var(--teal-dark); transform: translateY(-2px); box-shadow: 0 6px 28px rgba(13,148,136,0.35); }
.btn-outline {
  background: transparent; color: var(--teal);
  border: 2px solid var(--teal);
}
.btn-outline:hover { background: var(--teal); color: var(--white); transform: translateY(-2px); }
.btn-white {
  background: var(--white); color: var(--teal);
  box-shadow: var(--shadow-md);
}
.btn-white:hover { background: var(--teal-pale); transform: translateY(-2px); }
.btn-lg { padding: 1.1rem 2.5rem; font-size: 1.05rem; }

/* ── NAV ── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-200);
  padding: 0 5%;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.nav-logo img { height: 48px; }
.nav-links {
  display: flex; align-items: center; gap: 2rem; list-style: none;
}
.nav-links a {
  text-decoration: none; font-size: 0.9rem; font-weight: 500;
  color: var(--slate-600); transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--teal); }
.nav-cta { margin-left: 1rem; }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; border: none; background: none; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--slate-700); border-radius: 2px; transition: all 0.3s; }

/* ── SECTION BASE ── */
section { padding: 5.5rem 5%; }
.container { max-width: 1200px; margin: 0 auto; }
.section-tag {
  display: inline-block; background: var(--teal-mid); color: var(--teal-dark);
  padding: 0.3rem 1rem; border-radius: 50px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase;
  margin-bottom: 1rem;
}
.section-title { margin-bottom: 1rem; color: var(--slate-900); }
.section-sub { max-width: 560px; font-size: 1.05rem; }
.center { text-align: center; }
.center .section-sub { margin: 0 auto; }

/* ── CARDS ── */
.card {
  background: var(--white); border: 1px solid var(--slate-200);
  border-radius: var(--radius-lg); padding: 2rem;
  transition: all 0.25s ease;
  box-shadow: var(--shadow-sm);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--teal-light); }

/* ── FOOTER ── */
footer {
  background: var(--slate-900); color: var(--slate-400);
  padding: 4rem 5% 2rem;
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer-brand p { font-size: 0.9rem; line-height: 1.7; margin-top: 1rem; max-width: 280px; }
.footer-logo { filter: brightness(0) invert(1); height: 44px; }
.footer-col h4 { color: var(--white); font-family: 'DM Sans', sans-serif; font-size: 0.85rem; font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 1rem; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col ul a { text-decoration: none; font-size: 0.9rem; color: var(--slate-400); transition: color 0.2s; }
.footer-col ul a:hover { color: var(--teal-light); }
.footer-bottom { border-top: 1px solid var(--slate-700); padding-top: 1.5rem; display: flex; align-items: center; justify-content: space-between; font-size: 0.85rem; flex-wrap: wrap; gap: 1rem; }
.footer-bottom a { color: var(--teal-light); text-decoration: none; }

/* ── FORMS ── */
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label { font-size: 0.875rem; font-weight: 600; color: var(--slate-700); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.85rem 1rem; border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-sm); font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem; color: var(--slate-800);
  background: var(--white); transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--teal); box-shadow: 0 0 0 3px rgba(13,148,136,0.12);
}
.form-group textarea { resize: vertical; min-height: 140px; }

/* ── UTILITIES ── */
.teal { color: var(--teal); }
.highlight { color: var(--teal); font-style: italic; }
.bg-slate { background: var(--slate-50); }
.bg-teal-pale { background: var(--teal-pale); }
.bg-dark { background: var(--slate-900); }
.divider { height: 1px; background: var(--slate-200); margin: 0; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  section { padding: 3.5rem 5%; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ── MOBILE MENU ── */
.mobile-menu {
  display: none; position: fixed; inset: 0; z-index: 999;
  background: var(--white); flex-direction: column;
  align-items: center; justify-content: center; gap: 2rem;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 1.4rem; font-weight: 600; color: var(--slate-800);
  text-decoration: none; transition: color 0.2s;
}
.mobile-menu a:hover { color: var(--teal); }
.mobile-close { position: absolute; top: 1.5rem; right: 5%; font-size: 1.5rem; cursor: pointer; background: none; border: none; color: var(--slate-700); }

/* ── ANIMATIONS ── */
@keyframes fadeUp { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:translateY(0); } }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
.fade-up { animation: fadeUp 0.6s ease forwards; }
.fade-up-1 { animation-delay: 0.1s; opacity: 0; }
.fade-up-2 { animation-delay: 0.2s; opacity: 0; }
.fade-up-3 { animation-delay: 0.3s; opacity: 0; }
.fade-up-4 { animation-delay: 0.4s; opacity: 0; }