/* ==========================================================================
   Jagrita Sanatana — Version 1.0
   A timeless digital library aesthetic
   ========================================================================== */

:root {
  /* Palette — deep night sky, saffron dawn, golden wisdom, parchment light */
  --color-bg-deep: #0f0e17;
  --color-bg-mid: #1a1828;
  --color-bg-card: #221f33;
  --color-bg-elevated: #2a2640;
  --color-saffron: #e8943a;
  --color-saffron-light: #f5b86a;
  --color-gold: #c9a227;
  --color-gold-muted: #a68520;
  --color-cream: #f5f0e6;
  --color-cream-muted: #c8c0b0;
  --color-text: #e8e4dc;
  --color-text-muted: #9a9488;
  --color-border: rgba(201, 162, 39, 0.15);
  --color-border-hover: rgba(232, 148, 58, 0.35);

  /* Typography */
  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-display: "Cormorant Garamond", Georgia, serif;
  --font-devanagari: "Noto Serif Devanagari", serif;

  /* Spacing & layout */
  --container-max: 72rem;
  --section-padding: clamp(4rem, 10vw, 7rem);
  --header-height: 4.5rem;

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 0.4s;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg-deep);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-saffron-light);
  text-decoration: none;
  transition: color var(--duration) var(--ease-out);
}

a:hover {
  color: var(--color-gold);
}

ul {
  list-style: none;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(100% - 2.5rem, var(--container-max));
  margin-inline: auto;
}

/* Background texture */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(232, 148, 58, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(201, 162, 39, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse 50% 30% at 10% 80%, rgba(120, 80, 160, 0.06) 0%, transparent 50%),
    linear-gradient(180deg, var(--color-bg-deep) 0%, var(--color-bg-mid) 50%, var(--color-bg-deep) 100%);
}

.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(15, 14, 23, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.site-header.scrolled {
  background: rgba(15, 14, 23, 0.95);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: min(100% - 2.5rem, var(--container-max));
  margin-inline: auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  color: var(--color-cream);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-logo:hover {
  color: var(--color-saffron-light);
}

.om-symbol {
  font-family: var(--font-devanagari);
  font-size: 1.5rem;
  color: var(--color-saffron);
  line-height: 1;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-menu a {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-cream-muted);
}

.nav-menu a:hover {
  color: var(--color-saffron-light);
}

.nav-search {
  padding: 0.4rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  transition: border-color var(--duration) var(--ease-out),
              background var(--duration) var(--ease-out);
}

.nav-search:hover {
  border-color: var(--color-border-hover);
  background: rgba(232, 148, 58, 0.08);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-cream);
  transition: transform var(--duration) var(--ease-out),
              opacity var(--duration) var(--ease-out);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--header-height) + 3rem) 1.5rem 4rem;
}

.hero-ornament {
  width: min(90%, 32rem);
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-gold-muted) 20%,
    var(--color-saffron) 50%,
    var(--color-gold-muted) 80%,
    transparent
  );
  opacity: 0.5;
}

.hero-ornament--top {
  margin-bottom: 3rem;
}

.hero-ornament--bottom {
  margin-top: 3rem;
}

.hero-inner {
  max-width: 42rem;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-saffron);
  margin-bottom: 1.5rem;
}

.hero-sanskrit {
  font-family: var(--font-devanagari);
  font-size: clamp(2.5rem, 8vw, 4rem);
  font-weight: 600;
  color: var(--color-cream);
  line-height: 1.2;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.hero-title-en {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 0.75rem;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  font-style: italic;
  color: var(--color-cream-muted);
  margin-bottom: 2.5rem;
}

.hero-quote {
  margin-bottom: 2.5rem;
  padding: 0;
  border: none;
}

.hero-quote-sanskrit {
  font-family: var(--font-devanagari);
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  color: var(--color-cream);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.hero-quote-en {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.hero-quote cite {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-style: normal;
  letter-spacing: 0.08em;
  color: var(--color-gold-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: all var(--duration) var(--ease-out);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-saffron) 0%, var(--color-gold) 100%);
  color: var(--color-bg-deep);
  border: none;
  box-shadow: 0 4px 20px rgba(232, 148, 58, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(232, 148, 58, 0.35);
  color: var(--color-bg-deep);
}

.btn-secondary {
  background: transparent;
  color: var(--color-cream);
  border: 1px solid var(--color-border-hover);
}

.btn-secondary:hover {
  background: rgba(232, 148, 58, 0.1);
  border-color: var(--color-saffron);
  color: var(--color-saffron-light);
}

/* ==========================================================================
   Sections — shared
   ========================================================================== */

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

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-saffron);
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  color: var(--color-cream);
  line-height: 1.25;
}

.section-divider {
  width: 4rem;
  height: 2px;
  margin: 1.25rem auto 0;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
}

/* ==========================================================================
   Mission
   ========================================================================== */

.mission {
  background: linear-gradient(180deg, transparent, rgba(26, 24, 40, 0.5), transparent);
}

.mission-content {
  max-width: 42rem;
  margin-inline: auto;
  text-align: center;
}

.mission-lead {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-style: italic;
  color: var(--color-cream);
  margin-bottom: 1.5rem;
}

.mission-content p {
  margin-bottom: 1.25rem;
  color: var(--color-text-muted);
}

.mission-content strong {
  color: var(--color-saffron-light);
  font-weight: 500;
}

/* ==========================================================================
   Knowledge Grid
   ========================================================================== */

.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
  gap: 1.5rem;
}

.knowledge-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 2rem;
  transition: transform var(--duration) var(--ease-out),
              border-color var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
}

.knowledge-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-hover);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card-icon {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.knowledge-card h3 {
  font-family: var(--font-display);
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-cream);
  margin-bottom: 0.375rem;
}

.card-subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  margin-bottom: 1.25rem;
  font-style: italic;
}

.knowledge-card ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.knowledge-card li {
  font-size: 0.9375rem;
  color: var(--color-cream-muted);
  padding-left: 1rem;
  position: relative;
  transition: color var(--duration) var(--ease-out);
}

.knowledge-card li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--color-saffron);
  font-weight: bold;
}

.knowledge-card:hover li {
  color: var(--color-text);
}

/* Category accent colors on hover */
.knowledge-card[data-category="foundations"]:hover { border-top: 2px solid var(--color-saffron); }
.knowledge-card[data-category="scriptures"]:hover { border-top: 2px solid var(--color-gold); }
.knowledge-card[data-category="traditions"]:hover { border-top: 2px solid #d4854a; }
.knowledge-card[data-category="teachers"]:hover { border-top: 2px solid #8b7ec8; }
.knowledge-card[data-category="modern"]:hover { border-top: 2px solid #5a9a7a; }
.knowledge-card[data-category="library"]:hover { border-top: 2px solid #6a8fb5; }

/* ==========================================================================
   Featured Verse
   ========================================================================== */

.verse {
  padding-block: clamp(3rem, 8vw, 5rem);
}

.verse-card {
  max-width: 36rem;
  margin-inline: auto;
  text-align: center;
  padding: clamp(2.5rem, 6vw, 4rem);
  background: linear-gradient(145deg, var(--color-bg-card), var(--color-bg-elevated));
  border: 1px solid var(--color-border);
  border-radius: 4px;
  position: relative;
}

.verse-card::before,
.verse-card::after {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--color-gold-muted);
  opacity: 0.3;
  position: absolute;
  line-height: 1;
}

.verse-card::before {
  content: "\201C";
  top: 1rem;
  left: 1.5rem;
}

.verse-card::after {
  content: "\201D";
  bottom: 0.5rem;
  right: 1.5rem;
}

.verse-card .section-label {
  margin-bottom: 1.5rem;
}

.verse-sanskrit {
  font-family: var(--font-devanagari);
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 600;
  color: var(--color-cream);
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

.verse-en {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  font-style: italic;
  color: var(--color-saffron-light);
  margin-bottom: 1rem;
}

.verse-card cite {
  font-family: var(--font-display);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  font-style: normal;
  letter-spacing: 0.06em;
}

/* ==========================================================================
   Vision / Knowledge Graph
   ========================================================================== */

.vision-content {
  max-width: 42rem;
  margin-inline: auto 3rem;
  text-align: center;
  margin-bottom: 3rem;
}

.vision-content p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.vision-content strong {
  color: var(--color-saffron-light);
}

.knowledge-graph {
  position: relative;
  width: min(100%, 28rem);
  height: 28rem;
  margin: 0 auto 3rem;
}

.graph-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8rem;
  height: 8rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  background: radial-gradient(circle, var(--color-bg-elevated), var(--color-bg-card));
  border: 2px solid var(--color-gold);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-cream);
  text-align: center;
  z-index: 2;
  box-shadow: 0 0 40px rgba(201, 162, 39, 0.15);
}

.graph-om {
  font-family: var(--font-devanagari);
  font-size: 1.75rem;
  color: var(--color-saffron);
}

.graph-nodes {
  position: absolute;
  inset: 0;
}

.graph-node {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: rotate(var(--angle)) translateY(-11rem) rotate(calc(-1 * var(--angle)));
  padding: 0.375rem 0.75rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  font-family: var(--font-display);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: var(--color-cream-muted);
  white-space: nowrap;
  transition: all var(--duration) var(--ease-out);
  animation: graphPulse 4s ease-in-out infinite;
  animation-delay: calc(var(--angle) / 360deg * 2s);
}

.graph-node:hover {
  border-color: var(--color-saffron);
  color: var(--color-saffron-light);
  transform: rotate(var(--angle)) translateY(-11.5rem) rotate(calc(-1 * var(--angle))) scale(1.05);
}

@keyframes graphPulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

.vision-closing {
  text-align: center;
  max-width: 36rem;
  margin-inline: auto;
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--color-cream-muted);
}

/* ==========================================================================
   Coming Soon
   ========================================================================== */

.coming-soon {
  background: linear-gradient(180deg, transparent, rgba(26, 24, 40, 0.4), transparent);
}

.coming-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 18rem), 1fr));
  gap: 0.75rem 2rem;
  max-width: 48rem;
  margin-inline: auto;
}

.coming-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9375rem;
  color: var(--color-cream-muted);
}

.coming-list li::before {
  content: "✓";
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.625rem;
  font-weight: bold;
  color: var(--color-bg-deep);
  background: var(--color-gold-muted);
  border-radius: 50%;
}

/* ==========================================================================
   Journey
   ========================================================================== */

.journey-path {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  margin-bottom: 3rem;
}

.journey-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.journey-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-gold-muted);
  border: 2px solid var(--color-gold);
  transition: all var(--duration) var(--ease-out);
}

.journey-step--final .journey-dot {
  width: 16px;
  height: 16px;
  background: var(--color-saffron);
  border-color: var(--color-saffron-light);
  box-shadow: 0 0 20px rgba(232, 148, 58, 0.4);
}

.journey-label {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--color-cream-muted);
}

.journey-step--final .journey-label {
  color: var(--color-saffron-light);
  font-weight: 600;
}

.journey-arrow {
  font-size: 1.25rem;
  color: var(--color-gold-muted);
  padding: 0.5rem 0;
  opacity: 0.6;
}

.journey-quote {
  max-width: 36rem;
  margin: 0 auto 2.5rem;
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.journey-quote-sanskrit {
  font-family: var(--font-devanagari);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--color-cream);
  margin-bottom: 0.75rem;
  line-height: 1.6;
}

.journey-quote-en {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-style: italic;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.journey-quote cite {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  color: var(--color-gold-muted);
  font-style: normal;
}

.journey-actions {
  text-align: center;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  padding: 3rem 0;
  border-top: 1px solid var(--color-border);
  background: rgba(15, 14, 23, 0.6);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer-brand .om-symbol {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.5rem;
}

.footer-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-cream);
  letter-spacing: 0.06em;
}

.footer-tagline {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-style: italic;
  color: var(--color-text-muted);
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

/* ==========================================================================
   Scroll reveal animations
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: rgba(15, 14, 23, 0.98);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--duration) var(--ease-out),
                opacity var(--duration) var(--ease-out),
                visibility var(--duration);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu a {
    display: block;
    padding: 0.875rem 1.5rem;
    text-align: center;
  }

  .nav-search {
    border: none;
    border-radius: 0;
  }

  .knowledge-graph {
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .graph-nodes {
    position: static;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
  }

  .graph-node {
    position: static;
    transform: none !important;
    animation: none;
  }

  .graph-center {
    position: static;
    transform: none;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .nav-logo-text {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .graph-node {
    animation: none;
  }

  .btn-primary:hover {
    transform: none;
  }

  .knowledge-card:hover {
    transform: none;
  }
}