/**
 * Azureline Wedding Invitation — Sinhala Catholic Template 01
 * Base Styles, Section 11 Color Pairing Rules & Liquid Glass Utilities
 */

/* ==========================================================================
   CSS Reset & Normalization
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: auto;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  scrollbar-width: none;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  width: 0;
  height: 0;
  display: none;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-cream);
  overflow-x: hidden;
  min-height: 100vh;
  background-image: radial-gradient(circle at top, rgba(220, 192, 140, 0.08), transparent 42rem);
}

/* Sinhala typography override */
[lang="si"], .lang-si {
  font-family: var(--font-sinhala);
  line-height: 1.7;
}

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--color-gold-dark);
  outline-offset: 3px;
}

a {
  color: var(--color-gold-dark);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover, a:focus-visible {
  color: var(--color-wine-light);
}

/* ==========================================================================
   Section 11 Color Pairing Rules
   ========================================================================== */
/* Cream Background -> Wine Text */
.bg-cream {
  background-color: var(--color-cream);
  color: var(--color-text);
}

/* Wine Background -> Gold Text */
.bg-wine {
  background-color: var(--color-wine);
  color: var(--color-gold);
}

.bg-wine h1, .bg-wine h2, .bg-wine h3, .bg-wine h4, .bg-wine p, .bg-wine .subheading {
  color: var(--color-gold);
}

/* Transparent Floral Background Layers */
.pattern-wine {
  background: transparent;
}

.pattern-gold {
  background-image:
    linear-gradient(rgba(61, 21, 48, 0.9), rgba(61, 21, 48, 0.9)),
    url("../images/floral-bg-layer-gold.webp");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

/* One pinned floral scene shared by each two-section content group */
.story-background-stage {
  position: relative;
  isolation: isolate;
}

.story-background-stage::before {
  content: "";
  position: sticky;
  top: 0;
  z-index: 0;
  display: block;
  height: 100vh;
  margin-bottom: -100vh;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 253, 247, 0.95), rgba(255, 253, 247, 0.95)),
    url("../images/floral-bg-layer-wine.webp");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

.story-background-stage > .pattern-wine {
  position: relative;
  z-index: 1;
  background: transparent;
}

.story-background-stage > .formal-invitation-section,
.story-background-stage > .save-date-section {
  position: relative;
  z-index: 1;
  background: transparent;
}

.story-background-stage > .bg-cream,
.story-background-stage > .pattern-wine {
  background-color: transparent;
  background-image: none;
}


/* ==========================================================================
   Section 11 Liquid Glass Visual Language (.liquid-glass)
   ========================================================================== */
.liquid-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-glass);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.55), var(--shadow-card);
  transition: transform var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard);
}

.light-glass {
  background: var(--surface-light-glass);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-glass);
  box-shadow: var(--shadow-surface), inset 0 1px 1px rgba(255, 255, 255, 0.55);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(var(--glass-blur));
}

.dark-glass {
  background: var(--surface-dark-glass);
  border: 1px solid rgba(220, 192, 140, 0.32);
  border-radius: var(--radius-glass);
  box-shadow: var(--shadow-surface), inset 0 1px 1px rgba(255, 255, 255, 0.12);
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(var(--glass-blur));
}

.frosted-ivory {
  background: var(--surface-ivory);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-glass);
  box-shadow: var(--shadow-surface);
}

@supports not (backdrop-filter: blur(1px)) {
  .liquid-glass,
  .liquid-glass-wine {
    background-color: var(--color-ivory);
  }
}

.liquid-glass:hover {
  transform: translateY(-3px);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.55), var(--shadow-soft);
}

.liquid-glass:active {
  transform: scale(0.98);
}

.liquid-glass-wine {
  background: var(--glass-bg-wine);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid rgba(199, 160, 90, 0.4);
  border-radius: var(--radius-glass);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.2), 0 16px 40px rgba(0, 0, 0, 0.3);
  color: var(--color-gold);
}


/* ==========================================================================
   Typography Helpers
   ========================================================================== */
h1, h2, h3, h4, h5, h6, .font-display {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-wine);
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.25rem, 1.8rem + 2vw, 3.75rem); }
h2 { font-size: clamp(1.85rem, 1.5rem + 1.25vw, 2.75rem); }
h3 { font-size: clamp(1.4rem, 1.2rem + 0.75vw, 2rem); }
h4 { font-size: clamp(1.15rem, 1.05rem + 0.5vw, 1.5rem); }

.font-script {
  font-family: var(--font-script);
  font-style: italic;
}

.text-gold {
  color: var(--color-gold);
}
.text-wine {
  color: var(--color-wine);
}
.text-center {
  text-align: center;
}
.subheading {
  font-family: var(--font-script);
  font-style: italic;
  font-size: clamp(1.1rem, 1rem + 0.35vw, 1.35rem);
  color: var(--color-gold-dark);
  margin-bottom: var(--space-xs);
}


/* ==========================================================================
   Layout Containers & Breakpoints
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--content-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1rem, 4vw, 3rem);
  padding-right: clamp(1rem, 4vw, 3rem);
}

@media (min-width: 768px) {
  .container {
    padding-left: clamp(2rem, 5vw, 4rem);
    padding-right: clamp(2rem, 5vw, 4rem);
  }
}

.section {
  padding-top: var(--section-padding);
  padding-bottom: var(--section-padding);
  position: relative;
}
/* Visually hidden text remains available to assistive technology. */
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }