:root {
  box-sizing: border-box;
}

header.sticky {
  top: 0;
  padding-top: max(0px, env(safe-area-inset-top, 0px));
}

* {
  font-variant-numeric: normal;
  -webkit-font-feature-settings: "numr" 0, "onum" 0, "pnum" 0;
  font-feature-settings: "numr" 0, "onum" 0, "pnum" 0;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

#printAchievementCard,
#printAchievementCard * {
  letter-spacing: 0 !important;
  word-spacing: normal !important;
}

.quranic-verse {
  font-family: 'Amiri Quran', serif;
  line-height: 2.3;
  padding-top: 0.25rem;
  padding-bottom: 0.25rem;
}

/* ========================================================
   1. ISLAMIC GEOMETRIC VECTOR PATTERN (Authentic Arabesque)
   ======================================================== */
.bg-islamic-pattern {
  background-color: #f8fafc;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0l5 12 12-5-5 12 12 5-12 5 5 12-12-5-5 12-5-12-12 5 5-12-12-5 12-5-5-12 12 5zM0 30l5 12 12-5-5 12 12 5-12 5 5 12-12-5-5 12-5-12-12 5 5-12-12-5 12-5-5-12 12 5zM60 30l5 12 12-5-5 12 12 5-12 5 5 12-12-5-5 12-5-12-12 5 5-12-12-5 12-5-5-12 12 5z' fill='%23064e3b' fill-opacity='0.025' fill-rule='evenodd'/%3E%3C/svg%3E");
  background-size: 60px 60px;
}

.dark .bg-islamic-pattern {
  background-color: #020617;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0l5 12 12-5-5 12 12 5-12 5 5 12-12-5-5 12-5-12-12 5 5-12-12-5 12-5-5-12 12 5zM0 30l5 12 12-5-5 12 12 5-12 5 5 12-12-5-5 12-5-12-12 5 5-12-12-5 12-5-5-12 12 5zM60 30l5 12 12-5-5 12 12 5-12 5 5 12-12-5-5 12-5-12-12 5 5-12-12-5 12-5-5-12 12 5z' fill='%23fbbf24' fill-opacity='0.035' fill-rule='evenodd'/%3E%3C/svg%3E");
  background-size: 60px 60px;
}

/* ========================================================
   SEPIA / WARM PARCHMENT THEME (مصحفي دافئ - راحة العين)
   ======================================================== */
html.sepia-mode .bg-islamic-pattern {
  background-color: #fbf7ee !important;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M30 0l5 12 12-5-5 12 12 5-12 5 5 12-12-5-5 12-5-12-12 5 5-12-12-5 12-5-5-12 12 5z' fill='%2392400e' fill-opacity='0.035' fill-rule='evenodd'/%3E%3C/svg%3E") !important;
}

html.sepia-mode body {
  background-color: #fbf7ee !important;
  color: #3b2a1a !important;
}

html.sepia-mode header {
  background-color: rgba(251, 247, 238, 0.94) !important;
  border-bottom-color: #e8ddc7 !important;
}

html.sepia-mode .bg-white {
  background-color: #f5eedc !important;
  border-color: #e7dac2 !important;
  color: #382c1e !important;
}

html.sepia-mode .bg-slate-50 {
  background-color: #eee4ce !important;
  border-color: #decfae !important;
}

html.sepia-mode .text-slate-900,
html.sepia-mode .text-slate-800 {
  color: #2c1e12 !important;
}

html.sepia-mode .text-slate-700,
html.sepia-mode .text-slate-600 {
  color: #4a3828 !important;
}

html.sepia-mode .text-slate-500,
html.sepia-mode .text-slate-400 {
  color: #79624b !important;
}

html.sepia-mode #mobileBottomNav {
  background-color: rgba(251, 247, 238, 0.96) !important;
  border-top-color: #e5d8be !important;
}

/* ========================================================
   2. SURAH & PAGE GRID ENHANCEMENTS
   ======================================================== */
.page-box {
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.page-box:active {
  transform: scale(0.92);
}

.page-box:hover {
  transform: translateY(-1px);
}

/* Sticky Juz Jumper Bar */
.sticky-juz-nav {
  position: -webkit-sticky !important;
  position: sticky !important;
  top: 50px !important;
  z-index: 35 !important;
  backdrop-filter: blur(12px) !important;
  -webkit-backdrop-filter: blur(12px) !important;
  box-shadow: 0 4px 14px -2px rgba(0, 0, 0, 0.08) !important;
}

@media (min-width: 640px) {
  .sticky-juz-nav {
    top: 60px !important;
  }
}

/* Active Juz Button Highlight */
.juz-jumper-active {
  background-color: #047857 !important;
  color: #ffffff !important;
  box-shadow: 0 2px 6px rgba(4, 120, 87, 0.3);
}

/* In-Progress Surah Card Accent */
.surah-card-in-progress {
  border-color: #f59e0b !important;
  background: linear-gradient(135deg, rgba(254, 243, 199, 0.5) 0%, rgba(255, 251, 235, 0.9) 100%);
}

.dark .surah-card-in-progress {
  border-color: #b45309 !important;
  background: linear-gradient(135deg, rgba(120, 53, 15, 0.25) 0%, rgba(15, 23, 42, 0.9) 100%);
}

/* ========================================================
   3. TAMKEEN AUDIO RECITATION & SOUND WAVE ANIMATION
   ======================================================== */
.audio-playing-indicator {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  height: 14px;
}

.audio-playing-indicator span {
  display: inline-block;
  width: 3px;
  background-color: #10b981;
  border-radius: 9999px;
  animation: audioWave 1s ease-in-out infinite alternate;
}

.audio-playing-indicator span:nth-child(1) { height: 6px; animation-delay: 0.1s; }
.audio-playing-indicator span:nth-child(2) { height: 14px; animation-delay: 0.3s; }
.audio-playing-indicator span:nth-child(3) { height: 9px; animation-delay: 0.2s; }
.audio-playing-indicator span:nth-child(4) { height: 12px; animation-delay: 0.4s; }

@keyframes audioWave {
  0% { transform: scaleY(0.4); }
  100% { transform: scaleY(1.2); }
}

/* ========================================================
   6. MOBILE BOTTOM SHEETS & PWA EXPERIENCE
   ======================================================== */
@media (max-width: 639px) {
  .mobile-bottom-sheet {
    align-items: flex-end !important;
    padding: 0 !important;
  }

  .mobile-bottom-sheet > div {
    max-height: 88vh !important;
    border-bottom-left-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
    width: 100% !important;
    animation: bottomSheetSlideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }
}

@keyframes bottomSheetSlideUp {
  from {
    transform: translateY(100%);
    opacity: 0.8;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.drag-handle-pill {
  width: 40px;
  height: 4px;
  background-color: rgba(148, 163, 184, 0.6);
  border-radius: 9999px;
  margin: 6px auto 10px auto;
}

/* Mobile Bottom Navigation active indicator */
.mobile-nav-btn {
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-nav-btn:active {
  transform: scale(0.92);
}

/* Scrollbar polish */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.04);
}

::-webkit-scrollbar-thumb {
  background: #0d542b;
  border-radius: 9999px;
}

.dark ::-webkit-scrollbar-thumb {
  background: #15803d;
}

.no-scrollbar::-webkit-scrollbar {
  display: none;
}

.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* ========================================================
   INTERNATIONALIZATION & LTR ADAPTATIONS
   ======================================================== */
html[dir="ltr"] {
  text-align: left;
}

html[dir="ltr"] body,
html[dir="ltr"] .font-sans {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* Ensure Quranic calligraphy preserves right-to-left orientation and Amiri font */
.quranic-verse,
.font-quran {
  direction: rtl !important;
  text-align: center;
  font-family: 'Amiri Quran', serif !important;
}

/* Language selector button styling */
.lang-btn {
  user-select: none;
  touch-action: manipulation;
  cursor: pointer;
}