/* ============================================================
   Eid al-Adha — Blue Tile Book · e-reader
   Color system mirrors the printed cover & interior.
   ============================================================ */

:root {
  --navy-deep:     #0a1530;
  --navy:          #0d1b3d;
  --navy-soft:     #142554;
  --navy-line:     #1e3168;

  --gold:          #d4af37;
  --gold-warm:     #c9a043;
  --gold-soft:     #b8923a;
  --gold-pale:     #e6c969;

  --cream:         #f5ecd9;
  --cream-warm:    #efe3c4;
  --cream-deep:    #e8d9b3;
  --paper:         #fbf6e9;

  --ink:           #1a1408;
  --ink-soft:      #3a2e1c;

  --shadow-deep:   0 30px 80px -20px rgba(0, 0, 0, 0.55);
  --shadow-medium: 0 14px 40px -10px rgba(0, 0, 0, 0.4);
  --shadow-soft:   0 4px 14px -2px rgba(0, 0, 0, 0.25);

  --serif: "Cormorant Garamond", "Georgia", "Times New Roman", serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--cream);
  background: var(--navy-deep);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ──────────────────────────────────────────────────────────────
   Backdrop: deep navy with subtle Islamic geometric tile motif
   ────────────────────────────────────────────────────────────── */
body.landing {
  background:
    radial-gradient(ellipse at 50% 0%, var(--navy-soft) 0%, var(--navy-deep) 60%),
    var(--navy-deep);
  background-attachment: fixed;
  position: relative;
}

body.landing::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'><g fill='none' stroke='%23d4af37' stroke-width='0.5' opacity='0.06'><path d='M40 0L48 16L64 16L52 28L56 44L40 36L24 44L28 28L16 16L32 16Z'/><circle cx='40' cy='40' r='18'/><path d='M40 22L42 36L56 38L42 42L40 56L38 42L24 38L38 36Z'/></g></svg>");
  background-size: 160px 160px;
  pointer-events: none;
  z-index: 0;
}

.grain {
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(ellipse at 80% 20%, rgba(212, 175, 55, 0.08), transparent 50%),
    radial-gradient(ellipse at 10% 90%, rgba(212, 175, 55, 0.05), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* ──────────────────────────────────────────────────────────────
   Top bar
   ────────────────────────────────────────────────────────────── */
.topbar {
  position: relative;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 36px;
  border-bottom: 1px solid rgba(212, 175, 55, 0.18);
  backdrop-filter: blur(8px);
  background: rgba(10, 21, 48, 0.55);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: var(--cream);
}

.brand .star {
  color: var(--gold);
  font-size: 1.2rem;
}

.brand-text {
  font-weight: 500;
}

.topnav {
  display: flex;
  gap: 28px;
  align-items: center;
}

.topnav a {
  color: var(--cream);
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: 0.04em;
  opacity: 0.85;
  transition: opacity 0.2s ease, color 0.2s ease;
}

.topnav a:hover { opacity: 1; color: var(--gold-pale); }

.topnav .cta-mini {
  padding: 9px 18px;
  border: 1px solid var(--gold-soft);
  border-radius: 999px;
  color: var(--gold-pale);
  opacity: 1;
  font-weight: 500;
}

.topnav .cta-mini:hover {
  background: var(--gold);
  color: var(--navy-deep);
  border-color: var(--gold);
}

/* ──────────────────────────────────────────────────────────────
   Hero
   ────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  z-index: 1;
  padding: 80px 36px 100px;
}

.hero-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 88px;
  align-items: center;
}

.hero-cover {
  position: relative;
  perspective: 1500px;
}

.cover-frame {
  position: relative;
  z-index: 2;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-deep);
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.cover-frame:hover {
  transform: translateY(-4px);
}

.cover-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.cover-shadow {
  position: absolute;
  inset: 5% -8% -10% 5%;
  background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.6), transparent 70%);
  filter: blur(30px);
  z-index: 1;
}

.hero-copy {
  position: relative;
}

.eyebrow {
  font-family: var(--serif);
  font-style: italic;
  color: var(--gold-pale);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}

.title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 1.02;
  color: var(--cream);
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.subtitle {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.5vw, 1.7rem);
  color: var(--gold-pale);
  letter-spacing: 0.04em;
  margin-bottom: 28px;
  font-style: italic;
}

.ornament {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 24px 0 32px;
}

.ornament-line {
  height: 1px;
  flex: 0 1 90px;
  background: linear-gradient(90deg, transparent, var(--gold-soft), transparent);
}

.ornament-star {
  color: var(--gold);
  font-size: 0.95rem;
}

.lede {
  font-family: var(--serif);
  font-size: 1.22rem;
  line-height: 1.6;
  color: var(--cream-warm);
  margin-bottom: 28px;
  max-width: 520px;
}

.byline {
  font-family: var(--serif);
  font-size: 1rem;
  color: var(--cream-warm);
  letter-spacing: 0.05em;
  margin-bottom: 36px;
  opacity: 0.85;
}

.byline strong {
  color: var(--gold-pale);
  font-weight: 500;
}

.actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 28px;
  font-family: var(--sans);
  font-size: 0.98rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-decoration: none;
  border-radius: 999px;
  transition: all 0.25s cubic-bezier(0.2, 0.7, 0.2, 1);
  cursor: pointer;
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-warm) 100%);
  color: var(--navy-deep);
  box-shadow: 0 8px 24px -8px rgba(212, 175, 55, 0.55), 0 0 0 1px var(--gold-warm) inset;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px -8px rgba(212, 175, 55, 0.7), 0 0 0 1px var(--gold-pale) inset;
}

.btn-ghost {
  background: transparent;
  color: var(--cream);
  border-color: rgba(212, 175, 55, 0.4);
}

.btn-ghost:hover {
  background: rgba(212, 175, 55, 0.1);
  border-color: var(--gold);
  color: var(--gold-pale);
}

.btn-lg {
  padding: 20px 40px;
  font-size: 1.05rem;
}

.finehint {
  font-size: 0.82rem;
  color: rgba(245, 236, 217, 0.55);
  letter-spacing: 0.05em;
}

/* ──────────────────────────────────────────────────────────────
   About
   ────────────────────────────────────────────────────────────── */
.about {
  position: relative;
  z-index: 1;
  padding: 80px 36px;
  background:
    linear-gradient(180deg, transparent 0%, rgba(20, 37, 84, 0.4) 50%, transparent 100%);
}

.about-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 64px;
}

.about-card {
  background: rgba(10, 21, 48, 0.55);
  border: 1px solid rgba(212, 175, 55, 0.18);
  border-radius: 8px;
  padding: 32px 28px;
  backdrop-filter: blur(6px);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.about-card:hover {
  transform: translateY(-4px);
  border-color: rgba(212, 175, 55, 0.4);
  box-shadow: var(--shadow-medium);
}

.about-card h3 {
  font-family: var(--serif);
  color: var(--gold-pale);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.about-card p {
  font-family: var(--serif);
  font-size: 1.1rem;
  line-height: 1.55;
  color: var(--cream-warm);
}

.pullquote {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  text-align: center;
  color: var(--cream);
  max-width: 740px;
  margin: 0 auto;
  padding: 40px 24px;
  line-height: 1.4;
  position: relative;
}

.pullquote .qmark {
  font-family: var(--serif);
  color: var(--gold);
  font-size: 4rem;
  line-height: 0;
  margin-right: 6px;
  vertical-align: -0.4em;
  opacity: 0.6;
}

/* ──────────────────────────────────────────────────────────────
   Chapters
   ────────────────────────────────────────────────────────────── */
.chapters {
  position: relative;
  z-index: 1;
  padding: 80px 36px 100px;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.section-title {
  font-family: var(--serif);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 600;
  color: var(--cream);
  margin-bottom: 8px;
}

.chapter-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 48px;
}

.chapter-card {
  background: linear-gradient(135deg, rgba(20, 37, 84, 0.5), rgba(10, 21, 48, 0.5));
  border: 1px solid rgba(212, 175, 55, 0.22);
  border-radius: 6px;
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  text-align: left;
  transition: all 0.3s ease;
  cursor: default;
}

.chapter-card:hover {
  border-color: var(--gold);
  background: linear-gradient(135deg, rgba(20, 37, 84, 0.75), rgba(10, 21, 48, 0.75));
  transform: translateY(-2px);
}

.ch-num {
  font-family: var(--serif);
  font-style: italic;
  color: var(--gold);
  font-size: 1.6rem;
  font-weight: 600;
}

.ch-name {
  font-family: var(--serif);
  color: var(--cream-warm);
  font-size: 1.15rem;
  line-height: 1.4;
}

/* ──────────────────────────────────────────────────────────────
   Final CTA
   ────────────────────────────────────────────────────────────── */
.cta-final {
  position: relative;
  z-index: 1;
  padding: 100px 36px;
  text-align: center;
  background:
    radial-gradient(ellipse at center, rgba(20, 37, 84, 0.6) 0%, transparent 70%);
}

.cta-final-inner {
  max-width: 640px;
  margin: 0 auto;
}

.cta-final h2 {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 600;
  color: var(--cream);
  margin: 12px 0 36px;
  letter-spacing: -0.01em;
}

/* ──────────────────────────────────────────────────────────────
   Footer
   ────────────────────────────────────────────────────────────── */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(212, 175, 55, 0.18);
  padding: 36px;
  text-align: center;
}

.footer-blessing {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1.4rem;
  color: var(--gold-pale);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.footer-meta {
  font-size: 0.85rem;
  color: rgba(245, 236, 217, 0.5);
  letter-spacing: 0.04em;
}

/* ──────────────────────────────────────────────────────────────
   Reader page
   ────────────────────────────────────────────────────────────── */
body.reader {
  background: var(--navy-deep);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.reader-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 22px;
  border-bottom: 1px solid rgba(212, 175, 55, 0.18);
  background: rgba(10, 21, 48, 0.85);
  backdrop-filter: blur(10px);
  z-index: 10;
  flex-shrink: 0;
}

.reader-topbar .back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cream);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(212, 175, 55, 0.3);
  transition: all 0.2s ease;
}

.reader-topbar .back:hover {
  background: rgba(212, 175, 55, 0.1);
  border-color: var(--gold);
  color: var(--gold-pale);
}

.reader-title {
  font-family: var(--serif);
  font-size: 1.15rem;
  color: var(--cream);
  letter-spacing: 0.03em;
  text-align: center;
  flex: 1;
  padding: 0 16px;
}

.reader-title small {
  font-size: 0.75rem;
  color: var(--gold-pale);
  display: block;
  font-style: italic;
  letter-spacing: 0.06em;
  margin-top: 2px;
}

.reader-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.reader-controls {
  display: flex;
  gap: 14px;
  align-items: center;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: rgba(245, 236, 217, 0.6);
  text-transform: uppercase;
}

.control-group .select {
  font-family: var(--sans);
  font-size: 0.85rem;
  color: var(--cream);
  background: rgba(10, 21, 48, 0.7);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 6px;
  padding: 5px 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 130px;
}

.control-group .select:hover,
.control-group .select:focus {
  border-color: var(--gold);
  outline: none;
}

[dir="rtl"] .reader-topbar { flex-direction: row-reverse; }
[dir="rtl"] .reader-controls { flex-direction: row-reverse; }

@media (max-width: 900px) {
  .reader-controls { gap: 8px; }
  .control-group .select { min-width: 100px; font-size: 0.75rem; padding: 4px 8px; }
  .control-group { font-size: 0.6rem; }
}

@media (max-width: 600px) {
  .control-group span { display: none; }
}

.icon-btn {
  background: transparent;
  border: 1px solid rgba(212, 175, 55, 0.3);
  color: var(--cream);
  width: 38px;
  height: 38px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.icon-btn:hover:not(:disabled) {
  background: rgba(212, 175, 55, 0.12);
  border-color: var(--gold);
  color: var(--gold-pale);
}

.icon-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.reader-stage {
  flex: 1;
  overflow: auto;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 32px 22px 100px;
  position: relative;
  scrollbar-width: thin;
  scrollbar-color: var(--gold-soft) transparent;
}

.reader-stage::-webkit-scrollbar { width: 8px; }
.reader-stage::-webkit-scrollbar-track { background: transparent; }
.reader-stage::-webkit-scrollbar-thumb {
  background: rgba(212, 175, 55, 0.3);
  border-radius: 4px;
}

.page-wrap {
  background: var(--paper);
  box-shadow: var(--shadow-deep);
  border-radius: 2px;
  position: relative;
  display: inline-block;
}

.page-wrap canvas {
  display: block;
  border-radius: 2px;
  max-width: 100%;
  height: auto;
}

.page-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper);
  color: var(--navy);
  font-family: var(--serif);
  font-style: italic;
  font-size: 1rem;
  letter-spacing: 0.04em;
  opacity: 0.6;
}

.reader-footer {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(10, 21, 48, 0.92);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 999px;
  box-shadow: var(--shadow-medium);
}

.page-indicator {
  font-family: var(--serif);
  color: var(--cream);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  padding: 0 14px;
  min-width: 110px;
  text-align: center;
}

.page-indicator strong { color: var(--gold-pale); }

.reader-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-warm), var(--gold-pale));
  z-index: 30;
  transition: width 0.3s ease;
}

/* ──────────────────────────────────────────────────────────────
   Responsive
   ────────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .topbar { padding: 16px 20px; }
  .topnav { gap: 18px; }

  .hero { padding: 50px 20px 70px; }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  .hero-cover { max-width: 280px; margin: 0 auto; }
  .cover-frame { transform: none; }
  .cover-frame:hover { transform: translateY(-4px); }

  .hero-copy { text-align: center; }
  .lede { max-width: none; margin-left: auto; margin-right: auto; }
  .ornament { justify-content: center; }
  .actions { justify-content: center; }

  .about { padding: 60px 20px; }
  .about-grid { grid-template-columns: 1fr; gap: 18px; margin-bottom: 48px; }
  .chapters { padding: 60px 20px 80px; }
  .chapter-grid { grid-template-columns: 1fr; gap: 12px; }
  .cta-final { padding: 70px 20px; }

  .reader-topbar { padding: 12px 14px; }
  .reader-title { font-size: 1rem; }
  .reader-title small { display: none; }
  .reader-stage { padding: 18px 12px 90px; }
  .page-indicator { font-size: 0.85rem; min-width: 90px; padding: 0 6px; }
  .icon-btn { width: 34px; height: 34px; }
}

@media (max-width: 560px) {
  .brand-text { display: none; }
  .topnav a:not(.cta-mini) { display: none; }
  .reader-title { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}