/* =============================================
   BRIDGES TO BETTER SMILES — Main Stylesheet
   ============================================= */

:root {
  --teal: #1a9e8f;
  --teal-light: #2ec4b0;
  --teal-pale: #e8f8f6;
  --navy: #1b3a6b;
  --navy-light: #2a5298;
  --pink: #f4a7bb;
  --pink-light: #fce4ec;
  --sky: #7ec8e3;
  --sky-light: #e8f6fd;
  --white: #ffffff;
  --off-white: #fafcff;
  --text: #2d3748;
  --text-light: #718096;
  --border: #e2e8f0;
  --shadow: 0 4px 24px rgba(27, 58, 107, 0.10);
  --shadow-lg: 0 12px 48px rgba(27, 58, 107, 0.16);
  --radius: 20px;
  --radius-sm: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Nunito', sans-serif;
  color: var(--text);
  background: var(--off-white);
  overflow-x: hidden;
}

/* ---- UTILITY ---- */
.container { max-width: 1140px; margin: 0 auto; padding: 0 2rem; }
.section { padding: 5rem 0; }
.section-tag {
  display: inline-block;
  background: var(--teal-pale);
  color: var(--teal);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.35rem 1rem;
  border-radius: 50px;
  margin-bottom: 1rem;
}
.section-tag.light {
  background: rgba(255,255,255,0.2);
  color: white;
}
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 900;
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 1.2rem;
}
.section-title.light { color: white; }
.section-desc { color: var(--text-light); font-size: 1.1rem; max-width: 560px; margin: 0 auto 2.5rem; text-align: center; }

/* ---- BUTTONS ---- */
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--teal), var(--navy-light));
  color: white;
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(26,158,143,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(26,158,143,0.4); }
.btn-primary.full-width { width: 100%; text-align: center; }

.btn-ghost {
  display: inline-block;
  color: var(--navy);
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  border: 2px solid var(--border);
  background: white;
  transition: border-color 0.2s, background 0.2s;
}
.btn-ghost:hover { border-color: var(--teal); background: var(--teal-pale); }

.btn-small {
  display: inline-block;
  background: var(--teal-pale);
  color: var(--teal);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.5rem 1.3rem;
  border-radius: 50px;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}
.btn-small:hover { background: var(--teal); color: white; }

/* ---- NAVBAR ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 16px rgba(27,58,107,0.06);
}
.nav-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo img {
  height: 52px;
  width: auto;
  display: block;
}
.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--teal); }
.btn-nav {
  background: linear-gradient(135deg, var(--teal), var(--navy-light)) !important;
  color: white !important;
  padding: 0.5rem 1.4rem;
  border-radius: 50px;
}
.hamburger { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--navy); }

/* ---- HERO ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7rem 2rem 4rem;
  max-width: 1140px;
  margin: 0 auto;
  gap: 3rem;
  position: relative;
  overflow: hidden;
}
.hero-blobs { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.35;
  animation: blobFloat 8s ease-in-out infinite;
}
.blob-1 { width: 500px; height: 500px; background: var(--teal-pale); top: -100px; right: -100px; animation-delay: 0s; }
.blob-2 { width: 350px; height: 350px; background: var(--pink-light); bottom: 0; left: -80px; animation-delay: 3s; }
.blob-3 { width: 250px; height: 250px; background: var(--sky-light); top: 40%; right: 30%; animation-delay: 5s; }

@keyframes blobFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

.hero-content { flex: 1; max-width: 560px; position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: white;
  border: 1.5px solid var(--teal-pale);
  color: var(--teal);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.4rem 1rem;
  border-radius: 50px;
  margin-bottom: 1.2rem;
  box-shadow: var(--shadow);
}
.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.8rem, 6vw, 4.2rem);
  font-weight: 900;
  color: var(--navy);
  line-height: 1.1;
  margin-bottom: 1.2rem;
}
.highlight {
  background: linear-gradient(135deg, var(--teal), var(--teal-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  color: var(--text-light);
  font-size: 1.15rem;
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 480px;
}
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-visual { flex: 0 0 360px; display: flex; justify-content: center; position: relative; z-index: 1; }
.hero-card {
  background: white;
  border-radius: 32px;
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--border);
  animation: cardFloat 6s ease-in-out infinite;
}
@keyframes cardFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.hero-logo-img { width: 280px; height: auto; display: block; }

/* ---- STATS STRIP ---- */
.stats-strip {
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  padding: 2.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}
.stat { text-align: center; padding: 0.5rem 3rem; }
.stat-num {
  display: block;
  font-family: 'Playfair Display', serif;
  font-size: 2.4rem;
  font-weight: 900;
  color: white;
  line-height: 1;
}
.stat-label { display: block; color: var(--sky); font-size: 0.85rem; font-weight: 600; margin-top: 0.3rem; letter-spacing: 0.05em; }
.stat-divider { width: 1px; height: 60px; background: rgba(255,255,255,0.15); }

/* ---- ABOUT ---- */
.about { background: white; }
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about-text p {
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 1rem;
}
.about-text .btn-primary { margin-top: 0.5rem; }
.about-cards { display: flex; flex-direction: column; gap: 1.2rem; }
.about-card {
  padding: 1.5rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.card-teal { background: var(--teal-pale); }
.card-pink { background: var(--pink-light); }
.card-blue { background: var(--sky-light); }
.card-icon { font-size: 1.8rem; flex-shrink: 0; }
.about-card h3 { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 0.3rem; }
.about-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.6; }

/* ---- MISSION ---- */
.mission {
  background: linear-gradient(135deg, var(--teal) 0%, var(--navy) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.mission::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  top: -200px; right: -200px;
}
.mission .section-title, .mission p { color: white; }
.mission > .container > p { color: rgba(255,255,255,0.75); margin-bottom: 2.5rem; }
.mission-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}
.mission-card {
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: left;
  transition: background 0.2s, transform 0.2s;
}
.mission-card:hover { background: rgba(255,255,255,0.17); transform: translateY(-4px); }
.mission-icon { font-size: 2.2rem; margin-bottom: 1rem; }
.mission-card h3 { color: white; font-size: 1.05rem; font-weight: 700; margin-bottom: 0.6rem; }
.mission-card p { color: rgba(255,255,255,0.75); font-size: 0.93rem; line-height: 1.7; }

/* ---- IMPACT ---- */
.impact { background: var(--off-white); text-align: center; }
.impact .section-title { margin-bottom: 2.5rem; }
.testimonials { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.testimonial {
  background: white;
  border-radius: var(--radius);
  padding: 2.5rem 2rem 2rem;
  text-align: left;
  box-shadow: var(--shadow);
  position: relative;
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}
.testimonial:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.quote-mark {
  font-family: 'Playfair Display', serif;
  font-size: 5rem;
  color: var(--teal-pale);
  line-height: 0.5;
  margin-bottom: 1rem;
  display: block;
  color: var(--teal);
  opacity: 0.3;
}
.testimonial p { color: var(--text); line-height: 1.7; font-size: 0.98rem; margin-bottom: 1.2rem; }
.testimonial-author { color: var(--teal); font-weight: 700; font-size: 0.9rem; }

/* ---- KITS ---- */
.kits { background: white; text-align: center; }
.kits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.2rem;
  margin: 2rem 0 3rem;
}
.kit-item {
  background: var(--off-white);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
.kit-item:hover { border-color: var(--teal); background: var(--teal-pale); transform: translateY(-3px); }
.kit-emoji { font-size: 2.5rem; }
.kit-item span { font-weight: 700; color: var(--navy); font-size: 0.95rem; }
.kits-cta {
  background: linear-gradient(135deg, var(--teal-pale), var(--sky-light));
  border-radius: var(--radius);
  padding: 2.5rem;
  border: 1.5px solid rgba(26,158,143,0.2);
}
.kits-cta p { font-size: 1.1rem; color: var(--navy); margin-bottom: 1.2rem; }

/* ---- GET INVOLVED ---- */
.get-involved { background: var(--off-white); text-align: center; }
.get-involved .section-title { margin-bottom: 2.5rem; }
.involve-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.5rem; }
.involve-card {
  background: white;
  border-radius: var(--radius);
  padding: 2.5rem 1.8rem;
  border: 1.5px solid var(--border);
  text-align: center;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: var(--shadow);
}
.involve-card:hover { border-color: var(--teal); transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.involve-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.involve-card h3 { font-size: 1.1rem; font-weight: 800; color: var(--navy); margin-bottom: 0.6rem; }
.involve-card p { color: var(--text-light); font-size: 0.92rem; line-height: 1.7; margin-bottom: 1.3rem; }

/* ---- CONTACT ---- */
.contact {
  background: linear-gradient(135deg, var(--navy), var(--teal));
}
.two-col-contact {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 4rem;
  align-items: start;
}
.contact-info p { color: rgba(255,255,255,0.8); line-height: 1.7; margin-bottom: 1.5rem; }
.contact-details { display: flex; flex-direction: column; gap: 0.7rem; margin-bottom: 1.8rem; }
.contact-item { color: rgba(255,255,255,0.85); font-size: 0.97rem; }
.contact-item a { color: white; text-decoration: none; }
.social-links { display: flex; gap: 0.8rem; flex-wrap: wrap; }
.social-btn {
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  color: white;
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s;
}
.social-btn:hover { background: rgba(255,255,255,0.28); }

.contact-form {
  background: white;
  border-radius: var(--radius);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; font-weight: 700; font-size: 0.88rem; color: var(--navy); margin-bottom: 0.4rem; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: 'Nunito', sans-serif;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--off-white);
  transition: border-color 0.2s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--teal); background: white; }
.form-group textarea { resize: vertical; }
.form-success {
  display: none;
  background: var(--teal-pale);
  color: var(--teal);
  padding: 0.8rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  text-align: center;
  margin-top: 1rem;
}

/* ---- FOOTER ---- */
.footer { background: var(--navy); padding: 4rem 2rem 0; }
.footer-inner {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-logo img { height: 64px; margin-bottom: 1rem; }
.footer-logo p { color: rgba(255,255,255,0.55); font-size: 0.92rem; }
.footer-links h4 { color: white; font-size: 0.95rem; font-weight: 700; margin-bottom: 1rem; }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a { color: rgba(255,255,255,0.55); text-decoration: none; font-size: 0.9rem; transition: color 0.2s; }
.footer-links a:hover { color: var(--teal-light); }
.footer-bottom {
  max-width: 1140px;
  margin: 0 auto;
  padding: 1.5rem 0;
  text-align: center;
}
.footer-bottom p { color: rgba(255,255,255,0.35); font-size: 0.85rem; }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .hero { flex-direction: column; text-align: center; padding-top: 6rem; }
  .hero-content { max-width: 100%; }
  .hero-sub { margin: 0 auto 2rem; }
  .hero-btns { justify-content: center; }
  .hero-visual { flex: none; width: 100%; }
  .hero-logo-img { width: 200px; }
  .two-col, .two-col-contact { grid-template-columns: 1fr; gap: 2.5rem; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .footer-logo { grid-column: 1 / -1; }
  .stat-divider { display: none; }
  .stat { padding: 0.8rem 1.5rem; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hamburger { display: block; }
  .footer-inner { grid-template-columns: 1fr; }
  .section { padding: 3.5rem 0; }
}