/* ============================================================
   GOLD DENTAL — SUBPAGE STYLESHEET
   Shared by: cosmetic-dentistry, general-dentistry, periodontal-care
   ============================================================ */

:root {
  --navy:       #0d1b2a;
  --navy-mid:   #142236;
  --navy-light: #1e3352;
  --gold:       #c9a84c;
  --gold-light: #e8cb80;
  --gold-pale:  #f5e9cc;
  --white:      #f8f5ef;
  --gray:       #8a96a3;
  --border:     rgba(201,168,76,0.18);

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-accent:  'Cinzel', serif;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);

  --section-max: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--navy);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* NOISE */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.022;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 128px 128px;
}

/* BACK BUTTON */
.back-btn {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: rgba(13,27,42,0.8);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--gold-light);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: background 0.25s, color 0.25s, border-color 0.25s, transform 0.25s;
}

.back-btn svg {
  width: 16px;
  height: 16px;
}

.back-btn:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy);
  transform: translateX(-2px);
}

/* ACCESSIBILITY BAR */
.accessibility-bar {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  gap: 8px;
}

.accessibility-bar button {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: rgba(13,27,42,0.8);
  backdrop-filter: blur(16px);
  color: var(--gold-light);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s, color 0.25s;
}

.accessibility-bar button:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--navy);
}

/* HERO */
.subpage-hero {
  position: relative;
  height: 70vh;
  min-height: 520px;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

.subpage-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(13,27,42,0.95) 0%,
    rgba(13,27,42,0.6) 50%,
    rgba(13,27,42,0.35) 100%
  );
}

.subpage-hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 60px 70px;
  max-width: 800px;
}

.sub-eyebrow {
  font-family: var(--font-accent);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
  animation: fadeUp 0.7s 0.1s var(--ease-out) both;
}

.subpage-hero-content h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 300;
  line-height: 1.08;
  color: var(--white);
  margin-bottom: 18px;
  animation: fadeUp 0.8s 0.25s var(--ease-out) both;
}

.subpage-hero-content p {
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  color: rgba(248,245,239,0.75);
  max-width: 580px;
  line-height: 1.7;
  animation: fadeUp 0.8s 0.4s var(--ease-out) both;
}

/* REVEAL ANIMATION */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* SHARED LABELS */
.section-label {
  font-family: var(--font-accent);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

/* INTRO SECTION */
.subpage-intro {
  padding: 100px 60px;
  max-width: var(--section-max);
  margin: 0 auto;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 70px;
  align-items: start;
}

.intro-text h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--white);
  margin: 16px 0 22px;
}

.intro-text p {
  color: rgba(248,245,239,0.78);
  font-size: 0.97rem;
  line-height: 1.8;
  margin-bottom: 18px;
}

.intro-image {
  position: relative;
}

.intro-image img {
  width: 100%;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 24px 60px rgba(0,0,0,0.4);
  display: block;
}

.intro-image.multi-image {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.intro-image.multi-image img {
  height: 200px;
  object-fit: cover;
}

.image-accent {
  position: absolute;
  bottom: -16px;
  right: -16px;
  width: 60%;
  height: 60%;
  border: 1px solid var(--border);
  border-radius: 12px;
  z-index: -1;
}

/* SERVICES SECTION */
.subpage-services {
  padding: 80px 60px 100px;
  max-width: var(--section-max);
  margin: 0 auto;
}

.subpage-services h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 400;
  color: var(--white);
  margin: 14px 0 48px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.service-tile {
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s, border-color 0.25s;
}

.service-tile:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3), 0 0 0 1px rgba(201,168,76,0.2);
  border-color: rgba(201,168,76,0.3);
}

.service-tile-icon {
  width: 44px;
  height: 44px;
  background: rgba(201,168,76,0.1);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.service-tile-icon svg {
  width: 20px;
  height: 20px;
  color: var(--gold);
}

.service-tile h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gold-light);
  margin-bottom: 10px;
}

.service-tile p {
  font-size: 0.88rem;
  color: rgba(248,245,239,0.7);
  line-height: 1.7;
}

/* CTA TILE */
.service-tile-cta {
  background: linear-gradient(135deg, rgba(201,168,76,0.12), rgba(201,168,76,0.04));
  border-color: rgba(201,168,76,0.3);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
}

.service-tile-cta h3 {
  font-size: 1.4rem;
}

.service-tile-cta p {
  color: rgba(248,245,239,0.75);
}

/* BUTTON */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
  color: var(--navy);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: none;
  border-radius: 100px;
  cursor: pointer;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s;
  box-shadow: 0 4px 24px rgba(201,168,76,0.25);
  align-self: flex-start;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(201,168,76,0.38);
}

/* IMPLANT PROCESS SECTION */
.implant-process {
  background: var(--navy-mid);
  padding: 90px 60px;
}

.implant-process > * {
  max-width: var(--section-max);
  margin-left: auto;
  margin-right: auto;
}

.implant-process h2 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 400;
  color: var(--white);
  margin: 14px 0 48px;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.process-step {
  background: var(--navy-light);
  padding: 32px 28px;
  transition: background 0.3s;
}

.process-step:hover {
  background: rgba(30, 51, 82, 0.95);
}

.step-number {
  font-family: var(--font-accent);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 14px;
}

.process-step h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 10px;
}

.process-step p {
  font-size: 0.87rem;
  color: var(--gray);
  line-height: 1.7;
}

/* FOOTER */
.subpage-footer {
  background: var(--navy);
  border-top: 1px solid var(--border);
  padding: 28px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--gray);
}

/* ANIMATIONS */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* FOCUS */
:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .subpage-intro { padding: 70px 28px; }
  .subpage-services { padding: 60px 28px 80px; }
  .implant-process { padding: 70px 28px; }

  .intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .intro-image { max-width: 480px; }

  .subpage-hero-content {
    padding: 40px 28px 56px;
  }
}

@media (max-width: 600px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .subpage-hero {
    height: 65vh;
  }
}

@media (max-width: 768px) {
  .accessibility-bar {
    top: auto;
    bottom: 16px;
    right: 16px;
  }

  .back-btn {
    top: 14px;
    left: 14px;
  }
}