/* =========================================
   BRIGHTSMILE DENTAL — LAYOUT
   Container, grid, section spacing
   ========================================= */

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.container--wide {
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.container--narrow {
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

/* ── Sections ── */
.section {
  padding-block: var(--space-12);
}

.section--sm {
  padding-block: var(--space-8);
}

.section--lg {
  padding-block: var(--space-16);
}

.section--alt {
  background-color: var(--color-soft-blue);
}

.section--mint {
  background-color: var(--color-muted-mint);
}

.section--warm {
  background-color: var(--color-warm-neutral);
}

.section--navy {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.section--navy h2,
.section--navy h3,
.section--navy h4 {
  color: var(--color-white);
}

.section--navy p {
  color: rgba(255, 255, 255, 0.85);
}

.section--teal {
  background-color: var(--color-teal);
  color: var(--color-white);
}

.section--teal h2,
.section--teal h3,
.section--teal h4 {
  color: var(--color-white);
}

.section--teal p {
  color: rgba(255, 255, 255, 0.90);
}

/* ── Grid System ── */
.grid {
  display: grid;
  gap: var(--space-3);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: var(--space-3);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--space-3);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: var(--space-3);
}

/* Explicit column grids (don't auto-collapse) */
.grid-cols-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
}

.grid-cols-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

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

@media (max-width: 640px) {
  .grid-cols-2,
  .grid-cols-3 {
    grid-template-columns: 1fr;
  }
}

/* ── Two-column with image ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
}

.two-col--70-30 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-6);
  align-items: start;
}

.two-col--30-70 {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-6);
  align-items: start;
}

@media (max-width: 768px) {
  .two-col,
  .two-col--70-30,
  .two-col--30-70 {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
}

/* ── Section Header (shared pattern) ── */
.section-header {
  margin-bottom: var(--space-6);
}

.section-header--center {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-6);
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: var(--space-1);
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--h2-size);
  font-weight: var(--weight-bold);
  color: var(--color-navy);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-2);
}

.section--navy .section-label  { color: var(--color-accent-gold); }
.section--navy .section-title  { color: var(--color-white); }
.section--teal .section-label  { color: rgba(255,255,255,0.75); }
.section--teal .section-title  { color: var(--color-white); }

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  max-width: 560px;
}

.section-header--center .section-subtitle {
  margin-inline: auto;
}

/* ── Page Hero (inner pages) ── */
.page-hero {
  background-color: var(--color-navy);
  background-image: linear-gradient(135deg, var(--color-navy) 0%, #2A4E8C 100%);
  color: var(--color-white);
  padding-block: var(--space-10) var(--space-8);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(ellipse at 80% 50%, rgba(13, 148, 136, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.page-hero__content {
  position: relative;
  z-index: 1;
}

.page-hero__breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.70);
}

.page-hero__breadcrumb a {
  color: rgba(255, 255, 255, 0.70);
  transition: color var(--transition-fast);
}

.page-hero__breadcrumb a:hover {
  color: var(--color-white);
}

.page-hero__breadcrumb span {
  color: rgba(255, 255, 255, 0.40);
}

/* ── Breadcrumb (ol/li pattern) ── */
.breadcrumb {
  margin-bottom: var(--space-4);
}

.breadcrumb ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  font-size: 12px;
  font-weight: var(--weight-medium);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* Separator › between items */
.breadcrumb li + li::before {
  content: '›';
  margin: 0 8px;
  color: rgba(255, 255, 255, 0.30);
  font-size: 14px;
  line-height: 1;
  font-weight: 300;
}

/* Ancestor links */
.breadcrumb li a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: none;
  transition: color 150ms ease;
  padding: 2px 0;
  border-bottom: 1px solid transparent;
}

.breadcrumb li a:hover {
  color: rgba(255, 255, 255, 0.90);
  border-bottom-color: rgba(255, 255, 255, 0.35);
}

/* Current page */
.breadcrumb li[aria-current="page"] {
  color: rgba(255, 255, 255, 0.95);
  font-weight: var(--weight-semibold);
}

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.page-hero p {
  color: rgba(255, 255, 255, 0.80);
  font-size: var(--text-lg);
  max-width: 560px;
}

/* ── Divider ── */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: var(--space-4);
}

/* ── CTA Strip (shared ending section) ── */
.cta-strip {
  padding-block: 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* Radial glow overlays for depth */
.cta-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(255,255,255,0.11) 0%, transparent 65%),
    radial-gradient(ellipse 40% 40% at 80% 90%, rgba(255,255,255,0.05) 0%, transparent 60%);
  pointer-events: none;
}

/* ── Colour variants ── */
.cta-strip--teal {
  background: linear-gradient(135deg, #09706a 0%, #0D9488 50%, #0b9e96 100%);
}

.cta-strip--navy {
  background: linear-gradient(135deg, #112649 0%, #1B3A6B 55%, #1e4280 100%);
}

/* ── Inner content card ── */
.cta-strip__inner {
  position: relative;
  z-index: 1;
  background: rgba(255,255,255,0.09);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 24px;
  padding: 64px 56px;
  max-width: 740px;
  margin-inline: auto;
  backdrop-filter: blur(4px);
  box-shadow:
    0 12px 48px rgba(0,0,0,0.15),
    inset 0 1px 0 rgba(255,255,255,0.20),
    inset 0 -1px 0 rgba(0,0,0,0.08);
}

/* ── Text ── */
.cta-strip__title {
  font-family: var(--font-heading);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  color: var(--color-white);
  margin-bottom: var(--space-3);
  line-height: 1.18;
  letter-spacing: -0.015em;
  font-weight: 700;
}

/* Both class names used across pages */
.cta-strip__subtitle,
.cta-strip__sub {
  color: rgba(255, 255, 255, 0.82);
  font-size: 16.5px;
  line-height: 1.68;
  margin-bottom: var(--space-7);
  max-width: 480px;
  margin-inline: auto;
  font-weight: 400;
}

/* ── Buttons ── */
.cta-strip__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* Primary button gets extra presence in the CTA context */
.cta-strip__actions .btn--white {
  box-shadow: 0 4px 20px rgba(0,0,0,0.18);
}

.cta-strip__actions .btn--white:hover {
  box-shadow: 0 6px 28px rgba(0,0,0,0.22);
  transform: translateY(-1px);
}

@media (max-width: 600px) {
  .cta-strip {
    padding-block: 72px;
  }
  .cta-strip__inner {
    padding: 44px 28px;
  }
  .cta-strip__actions {
    flex-direction: column;
    width: 100%;
  }
  .cta-strip__actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ── Floating Book Button ── */
.floating-book-btn {
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: 14px var(--space-3);
  background: var(--color-navy);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-lg);
  transition: background var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.floating-book-btn:hover {
  background: var(--color-teal);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.floating-book-btn:active {
  transform: scale(0.97);
}

.floating-book-btn svg {
  width: 18px;
  height: 18px;
}

/* ── Responsive: Section padding ── */
@media (max-width: 768px) {
  .section {
    padding-block: var(--space-8);
  }
  .section--sm {
    padding-block: var(--space-6);
  }
  .section--lg {
    padding-block: var(--space-10);
  }
  .page-hero {
    padding-block: var(--space-8) var(--space-6);
  }
}

@media (max-width: 640px) {
  .section {
    padding-block: var(--space-6);
  }
  /* floating-book-btn mobile styles live in responsive.css */
}