/* =============================================================
   Iconic Smiles Dental Boutique — Global Styles v2
   Premium dental boutique aesthetic — Trust & Authority
   ============================================================= */

/* ── Design Tokens ──────────────────────────────────────────── */
:root {
  /* Core palette */
  --color-primary:      #1B3A5C;
  --color-primary-mid:  #234a74;
  --color-accent:       #C4973B;
  --color-accent-light: #d9af62;
  --color-accent-dark:  #A67D2E;
  --color-accent-pale:  rgba(196,151,59,0.08);
  --color-bg:           #FFFFFF;
  --color-bg-soft:      #F8F6F2;
  --color-bg-dark:      #1B3A5C;
  --color-bg-darkest:   #0D2540;
  --color-text:         #1a1a2e;
  --color-text-muted:   #5a6272;
  --color-border:       #E8E4DC;
  --color-border-light: #F0EDE7;

  /* Premium shadow system */
  --shadow-sm:  0 1px 3px rgba(27,58,92,0.06), 0 1px 2px rgba(27,58,92,0.04);
  --shadow-md:  0 4px 16px rgba(27,58,92,0.08), 0 2px 6px rgba(27,58,92,0.05);
  --shadow-lg:  0 12px 40px rgba(27,58,92,0.12), 0 4px 12px rgba(27,58,92,0.06);
  --shadow-xl:  0 24px 64px rgba(27,58,92,0.16), 0 8px 20px rgba(27,58,92,0.08);
  --shadow-gold: 0 4px 20px rgba(196,151,59,0.25);
  --shadow-gold-lg: 0 8px 32px rgba(196,151,59,0.3);

  /* Gold gradient for premium elements */
  --gradient-gold: linear-gradient(135deg, #C4973B 0%, #d9af62 50%, #C4973B 100%);
  --gradient-gold-h: linear-gradient(90deg, #C4973B 0%, #e8c47a 50%, #C4973B 100%);
  --gradient-navy: linear-gradient(135deg, #1B3A5C 0%, #0D2540 100%);
  --gradient-navy-rich: linear-gradient(160deg, #1e4168 0%, #1B3A5C 40%, #0D2540 100%);
  --gradient-soft: linear-gradient(160deg, #fdfcfa 0%, #F8F6F2 100%);

  /* Fonts */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', system-ui, sans-serif;

  /* Fluid typography */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.2vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.3vw, 1rem);
  --text-base: clamp(1rem,     0.9rem  + 0.4vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.5vw, 1.25rem);
  --text-xl:   clamp(1.25rem,  1rem    + 1vw,   1.5rem);
  --text-2xl:  clamp(1.5rem,   1.2rem  + 1.5vw, 2rem);
  --text-3xl:  clamp(1.875rem, 1.4rem  + 2vw,   2.625rem);
  --text-4xl:  clamp(2.25rem,  1.6rem  + 2.8vw, 3.75rem);
  --text-hero: clamp(2.75rem,  2rem    + 4vw,   5.5rem);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --transition-fast:   150ms ease;
  --transition-base:   250ms ease;
  --transition-slow:   400ms cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video, iframe {
  max-width: 100%;
  height: auto;
  display: block;
}

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* Custom scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg-soft); }
::-webkit-scrollbar-thumb { background: var(--color-accent); border-radius: 3px; }

/* ── Container ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: 24px;
}
@media (min-width: 768px)  { .container { padding-inline: 48px; } }
@media (min-width: 1024px) { .container { padding-inline: 64px; } }
@media (min-width: 1440px) { .container { padding-inline: 80px; } }

/* ── Section ────────────────────────────────────────────────── */
.section { padding-block: clamp(4rem, 9vw, 8rem); }

.section--soft {
  background: var(--gradient-soft);
  position: relative;
}
/* Subtle dot pattern on soft sections */
.section--soft::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(196,151,59,0.06) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.section--dark {
  background: var(--gradient-navy-rich);
  color: #fff;
  position: relative;
  overflow: hidden;
}
/* Decorative glow on dark sections */
.section--dark::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(196,151,59,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.section--darkest {
  background: var(--color-bg-darkest);
  color: #fff;
}

/* ── Typography ─────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--darkest h1,
.section--darkest h2,
.section--darkest h3 { color: #fff; }

/* Section tag with gold accent line */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}
.section-tag::before {
  content: '';
  display: block;
  width: 28px;
  height: 1px;
  background: var(--gradient-gold-h);
  flex-shrink: 0;
}

.section-heading {
  font-size: var(--text-3xl);
  margin-bottom: 1.125rem;
  font-weight: 700;
}

.section-subheading {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin-bottom: 3rem;
  line-height: 1.7;
}

.section--centered { text-align: center; }
.section--centered .section-tag { justify-content: center; }
.section--centered .section-subheading { margin-inline: auto; }

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  min-height: 48px;
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition:
    background var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast);
}

/* Shimmer overlay on gold button */
.btn--gold {
  background: var(--gradient-gold);
  background-size: 200% 100%;
  color: #fff;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-gold);
  text-shadow: 0 1px 2px rgba(0,0,0,0.15);
}
.btn--gold::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255,255,255,0.2) 50%, transparent 60%);
  background-size: 200% 100%;
  background-position: 200% 0;
  transition: background-position 0.5s ease;
}
.btn--gold:hover::after { background-position: -100% 0; }
.btn--gold:hover, .btn--gold:focus {
  background: linear-gradient(135deg, #d4a44a 0%, var(--color-accent) 50%, var(--color-accent-dark) 100%);
  box-shadow: var(--shadow-gold-lg);
  transform: translateY(-2px);
}
.btn--gold:active { transform: translateY(0); }

.btn--outline-white {
  background: rgba(255,255,255,0.06);
  color: #fff;
  border-color: rgba(255,255,255,0.5);
  backdrop-filter: blur(4px);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.14);
  border-color: rgba(255,255,255,0.8);
  transform: translateY(-2px);
}

.btn--outline-navy {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline-navy:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

.btn--lg {
  padding: 1.1rem 2.75rem;
  font-size: var(--text-base);
  border-radius: var(--radius-sm);
}

/* ── Grid Helpers ───────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 2rem; }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 2rem; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: 84px;
  background: transparent;
  transition:
    height 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    background 0.35s ease,
    box-shadow 0.35s ease,
    backdrop-filter 0.35s ease;
}

.site-header__inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 2.5rem;
}

.site-header.is-scrolled {
  height: 64px;
  background: rgba(13,37,64,0.97);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  box-shadow: 0 1px 0 rgba(196,151,59,0.3), 0 4px 24px rgba(0,0,0,0.2);
}

body:not(.home) .site-header {
  background: rgba(27,58,92,0.98);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(196,151,59,0.2), 0 4px 20px rgba(0,0,0,0.15);
}
body:not(.home) .site-main { padding-top: 84px; }

/* Gold accent bar at very bottom of header */
.site-header.is-scrolled::after,
body:not(.home) .site-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-accent) 30%, var(--color-accent-light) 50%, var(--color-accent) 70%, transparent 100%);
  opacity: 0.4;
}

/* Logo */
.site-header__logo { display: flex; align-items: center; }
.site-header__logo-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: opacity var(--transition-base);
}
.site-header__logo-text:hover { opacity: 0.85; }
.site-header__logo-img { max-height: 46px; width: auto; }

/* Header CTA */
.site-header__cta {
  margin-left: auto;
  padding: 0.55rem 1.35rem;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}
@media (max-width: 1023px) { .site-header__cta { display: none; } }

/* ── Navigation ─────────────────────────────────────────────── */
.nav-primary { margin-left: auto; }

@media (max-width: 1023px) {
  .nav-primary {
    position: fixed;
    inset: 0;
    background: var(--gradient-navy-rich);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
    z-index: 199;
    margin: 0;
  }
  .nav-primary.is-open { opacity: 1; pointer-events: all; }
  .nav-primary__list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
  }
  .nav-primary__list a {
    font-size: var(--text-2xl);
    color: rgba(255,255,255,0.9);
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: color var(--transition-base);
  }
  .nav-primary__list a:hover { color: var(--color-accent-light); }
}

@media (min-width: 1024px) {
  .nav-primary { display: flex; opacity: 1; pointer-events: all; position: static; }
  .nav-primary__list {
    display: flex;
    flex-direction: row;
    gap: 2.25rem;
    align-items: center;
  }
  .nav-primary__list a {
    color: rgba(255,255,255,0.85);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    padding: 0.375rem 0;
    position: relative;
    transition: color var(--transition-base);
  }
  /* Animated underline */
  .nav-primary__list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 100%;
    height: 1px;
    background: var(--gradient-gold-h);
    transition: right var(--transition-base);
  }
  .nav-primary__list a:hover { color: #fff; }
  .nav-primary__list a:hover::after,
  .nav-primary__list .current-menu-item > a::after { right: 0; }
  .nav-primary__list .current-menu-item > a { color: #fff; }
}

/* Burger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 10px;
  margin-left: auto;
  min-height: 44px;
  min-width: 44px;
  align-items: center;
  justify-content: center;
  z-index: 201;
  position: relative;
  border-radius: var(--radius-sm);
  transition: background var(--transition-base);
}
.nav-toggle:hover { background: rgba(255,255,255,0.08); }
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease, width 0.3s ease;
}
.nav-toggle span:nth-child(2) { width: 16px; }
.nav-toggle:hover span:nth-child(2) { width: 22px; }
@media (max-width: 1023px) { .nav-toggle { display: flex; } }

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
  background: var(--color-bg-darkest);
  color: rgba(255,255,255,0.75);
  padding-block: clamp(3.5rem, 7vw, 6rem);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-accent) 30%, var(--color-accent-light) 50%, var(--color-accent) 70%, transparent 100%);
}
.site-footer::after {
  content: '';
  position: absolute;
  bottom: -20%;
  right: -5%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, rgba(196,151,59,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
  position: relative;
  z-index: 1;
}
@media (min-width: 768px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .site-footer__grid { grid-template-columns: 2fr 1fr 1.5fr; }
}

.site-footer__logo-text {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: #fff;
  display: block;
  margin-bottom: 0.5rem;
  letter-spacing: 0.01em;
}
.site-footer__tagline {
  color: var(--color-accent);
  font-style: italic;
  font-size: var(--text-sm);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}
.site-footer__desc { font-size: var(--text-sm); line-height: 1.65; color: rgba(255,255,255,0.55); }

.site-footer__heading {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.site-footer__heading::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(196,151,59,0.3), transparent);
}

.nav-footer__list { display: flex; flex-direction: column; gap: 0.75rem; }
.nav-footer__list li { display: flex; align-items: center; gap: 0.5rem; }
.nav-footer__list li::before {
  content: '';
  display: block;
  width: 6px;
  height: 1px;
  background: var(--color-accent);
  opacity: 0.6;
  transition: width var(--transition-base), opacity var(--transition-base);
  flex-shrink: 0;
}
.nav-footer__list li:hover::before { width: 12px; opacity: 1; }
.nav-footer__list a {
  color: rgba(255,255,255,0.65);
  font-size: var(--text-sm);
  transition: color var(--transition-base);
  min-height: auto;
}
.nav-footer__list a:hover { color: var(--color-accent-light); }

.site-footer__nap { font-style: normal; }
.site-footer__nap p {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: var(--text-sm);
  margin-bottom: 0.875rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.5;
}
.site-footer__nap svg { flex-shrink: 0; margin-top: 2px; color: var(--color-accent); }
.site-footer__nap a { color: rgba(255,255,255,0.7); transition: color var(--transition-base); min-height: auto; }
.site-footer__nap a:hover { color: var(--color-accent-light); }
.site-footer__hours { font-size: var(--text-sm); color: rgba(255,255,255,0.55); }

.site-footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: 1.75rem;
  text-align: center;
  position: relative;
  z-index: 1;
}
.site-footer__copy { font-size: var(--text-xs); color: rgba(255,255,255,0.35); letter-spacing: 0.04em; }

/* ── Utility ────────────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* Gold divider line utility */
.gold-divider {
  width: 60px;
  height: 2px;
  background: var(--gradient-gold-h);
  margin: 1.5rem auto;
  border-radius: 1px;
}
.gold-divider--left { margin-left: 0; }

/* Touch targets */
a, button, [role="button"] { min-height: 44px; }
.btn { min-height: 48px; }

/* cursor-pointer on interactive cards */
[class*="-card"], [class*="__item"] { cursor: default; }

/* ── Focus States (Accessibility) ──────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ── Scroll-in Animations ───────────────────────────────────── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-up.is-visible { opacity: 1; transform: translateY(0); }

.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  .fade-up, .fade-up.is-visible { opacity: 1; transform: none; transition: none; }
  .btn::after { display: none; }
}