*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", "Noto Sans Arabic", sans-serif;
  background: #e8e4dc;
  color: #1a1a1a;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.header {
  flex-shrink: 0;
  padding: 0.5rem 1rem;
  background: #d4cfc4;
  border-top: 1px solid #c4bfb4;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.link-light {
  font-size: 0.9rem;
  color: #1a1a1a;
  text-decoration: none;
  padding: 0.35rem 0.5rem;
}

.link-light:hover {
  text-decoration: underline;
}

.btn {
  padding: 0.5rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid #999;
  border-radius: 4px;
  background: #f5f2eb;
  color: #1a1a1a;
}

.btn:hover {
  background: #ebe7df;
}

.btn:active {
  background: #e0dcd4;
}

.page-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-info label {
  font-weight: 500;
}

#page-input {
  width: 4ch;
  padding: 0.4rem 0.5rem;
  font-size: 1rem;
  text-align: center;
  border: 1px solid #999;
  border-radius: 4px;
  background: #fff;
}

.page-total {
  color: #555;
  font-size: 0.9rem;
}

.viewer {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  min-height: 0;
  touch-action: pan-y pinch-zoom;
}

#page-image {
  max-width: 100%;
  max-height: calc(100vh - 120px);
  height: auto;
  width: auto;
  object-fit: contain;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  border-radius: 2px;
  user-select: none;
  -webkit-user-select: none;
}

/* خيارات الصفحة الخفيفة: خلفية وإطار */
.light-page.opts-bg-default { background: #e8e4dc; }
.light-page.opts-bg-white { background: #fafafa; }
.light-page.opts-bg-cream { background: #f5f0e6; }
.light-page.opts-bg-gray { background: #e0dfdc; }
.light-page.opts-bg-green { background: #e5ebe4; }
.light-page.opts-bg-dark { background: #2c2c2c; color: #e0e0e0; }
.light-page.opts-bg-dark .header { background: #3a3a3a; border-color: #444; color: #e0e0e0; }
.light-page.opts-bg-dark .btn { background: #4a4a4a; border-color: #666; color: #e0e0e0; }
.light-page.opts-bg-dark .link-light { color: #c0c0c0; }
.light-page.opts-bg-dark .page-total { color: #999; }
.light-page.opts-bg-dark #page-input { background: #3a3a3a; border-color: #555; color: #e0e0e0; }
.light-page.opts-bg-dark .opts label { color: #e0e0e0; }
.light-page.opts-bg-dark select { background: #3a3a3a; border-color: #555; color: #e0e0e0; }

.light-page .opts {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.light-page .opts label { font-size: 0.85rem; }
.light-page .opts select {
  padding: 0.3rem 0.5rem;
  font-size: 0.85rem;
  border: 1px solid #999;
  border-radius: 4px;
  background: #fff;
  font-family: inherit;
  cursor: pointer;
}

/* إطار المصحف: غلاف حول الصورة */
.light-page .mushaf-frame {
  display: inline-block;
  line-height: 0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}
.light-page .mushaf-frame #page-image {
  display: block;
  border: none;
  box-shadow: none;
}

/* بدون إطار */
.light-page .mushaf-frame.opts-border-none {
  padding: 0;
  border: none;
  background: transparent;
}

/* مديني: إطار مزدوج ذهبي مثل مصحف المدينة (شريط خارجي + خط داخلي رفيع) */
.light-page .mushaf-frame.opts-border-madani {
  --mushaf-gold: #b8860b;
  --mushaf-gold-inner: #c9a227;
  padding: 10px;
  border: 5px solid var(--mushaf-gold);
  background: #e8e4dc;
  box-shadow: inset 0 0 0 1px var(--mushaf-gold-inner), 0 2px 16px rgba(0, 0, 0, 0.2);
}
.light-page.opts-bg-white .mushaf-frame.opts-border-madani { background: #fafafa; }
.light-page.opts-bg-cream .mushaf-frame.opts-border-madani { background: #f5f0e6; }
.light-page.opts-bg-gray .mushaf-frame.opts-border-madani { background: #e0dfdc; }
.light-page.opts-bg-green .mushaf-frame.opts-border-madani { background: #e5ebe4; }
.light-page.opts-bg-dark .mushaf-frame.opts-border-madani {
  background: #2c2c2c;
  border-color: #8a7a5c;
  box-shadow: inset 0 0 0 1px #9a8a6c, 0 2px 16px rgba(0, 0, 0, 0.4);
}

/* كلاسيكي: خط ذهبي واحد (إطار بسيط) */
.light-page .mushaf-frame.opts-border-classic {
  padding: 8px;
  border: 2px solid #b8860b;
  background: #e8e4dc;
  box-shadow: 0 2px 14px rgba(0, 0, 0, 0.18);
}
.light-page.opts-bg-white .mushaf-frame.opts-border-classic { background: #fafafa; }
.light-page.opts-bg-cream .mushaf-frame.opts-border-classic { background: #f5f0e6; }
.light-page.opts-bg-gray .mushaf-frame.opts-border-classic { background: #e0dfdc; }
.light-page.opts-bg-green .mushaf-frame.opts-border-classic { background: #e5ebe4; }
.light-page.opts-bg-dark .mushaf-frame.opts-border-classic {
  background: #2c2c2c;
  border-color: #8a7a5c;
}

/* فاخر: إطار ثلاثي (شريط خارجي عريض + فجوة + خط داخلي) */
.light-page .mushaf-frame.opts-border-luxury {
  --mushaf-gold: #8b6914;
  --mushaf-gold-inner: #c9a227;
  padding: 14px;
  border: 8px solid var(--mushaf-gold);
  background: #e8e4dc;
  box-shadow: inset 0 0 0 2px var(--mushaf-gold-inner), 0 4px 20px rgba(0, 0, 0, 0.22);
}
.light-page.opts-bg-white .mushaf-frame.opts-border-luxury { background: #fafafa; }
.light-page.opts-bg-cream .mushaf-frame.opts-border-luxury { background: #f5f0e6; }
.light-page.opts-bg-gray .mushaf-frame.opts-border-luxury { background: #e0dfdc; }
.light-page.opts-bg-green .mushaf-frame.opts-border-luxury { background: #e5ebe4; }
.light-page.opts-bg-dark .mushaf-frame.opts-border-luxury {
  background: #2c2c2c;
  border-color: #7a6a4c;
  box-shadow: inset 0 0 0 2px #9a8a6c, 0 4px 20px rgba(0, 0, 0, 0.45);
}

@media (max-width: 480px) {
  .nav {
    gap: 0.5rem;
  }

  .btn {
    padding: 0.4rem 0.75rem;
    font-size: 0.9rem;
  }

  .viewer {
    padding: 0.5rem;
  }

  #page-image {
    max-height: calc(100vh - 100px);
  }

  .light-page .opts { gap: 0.35rem; }
  .light-page .opts select { font-size: 0.8rem; padding: 0.25rem 0.4rem; }
}