/* ==========================================================================
   kuranislam.info — Styles
   Mobile-first, accessible, Islamic art-inspired design
   ========================================================================== */

/* ---------- Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif:ital,wght@0,400;0,700;1,400&display=swap');

/* ---------- Custom Properties ---------- */
:root {
  --font-verse: 'Noto Serif', Georgia, 'Times New Roman', serif;
  --font-ui: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

  /* Transition speed */
  --tr-fast: 0.2s;
  --tr-med: 0.4s;
  --tr-slow: 0.6s;
}

/* ===========================
   THEMES (each is self-contained)
   =========================== */

/* --- Midnight (dark, gold-blue photo) --- */
[data-palette="midnight"] {
  --bg-image: url('../img/gold-blue-opti.jpg');
  --bg-1: #0b1120;
  --bg-2: #162044;
  --overlay: rgba(11, 17, 32, 0.55);
  --card-bg: rgba(16, 24, 52, 0.92);
  --card-border: rgba(201, 168, 76, 0.22);
  --text-primary: #f0ebe0;
  --text-secondary: #b0a890;
  --accent: #c9a84c;
  --accent-dim: rgba(201, 168, 76, 0.15);
  --control-bg: rgba(22, 32, 68, 0.7);
  --control-hover: rgba(32, 48, 96, 0.85);
  --shadow: rgba(0, 0, 0, 0.4);
  --settings-bg: rgba(14, 20, 42, 0.96);
  color-scheme: dark;
}

/* --- Teal (dark, turquoise photo) --- */
[data-palette="teal"] {
  --bg-image: url('../img/teal-opti.jpg');
  --bg-1: #081a1a;
  --bg-2: #103838;
  --overlay: rgba(8, 26, 26, 0.55);
  --card-bg: rgba(12, 32, 36, 0.92);
  --card-border: rgba(96, 192, 176, 0.20);
  --text-primary: #e4f0ec;
  --text-secondary: #90b8a8;
  --accent: #60c0b0;
  --accent-dim: rgba(96, 192, 176, 0.12);
  --control-bg: rgba(16, 56, 56, 0.7);
  --control-hover: rgba(24, 72, 68, 0.85);
  --shadow: rgba(0, 0, 0, 0.4);
  --settings-bg: rgba(10, 24, 26, 0.96);
  color-scheme: dark;
}

/* --- Amethyst (dark, purple photo) --- */
[data-palette="amethyst"] {
  --bg-image: url('../img/purple-opti.jpg');
  --bg-1: #150a20;
  --bg-2: #2a1848;
  --overlay: rgba(21, 10, 32, 0.55);
  --card-bg: rgba(28, 16, 48, 0.92);
  --card-border: rgba(184, 152, 208, 0.20);
  --text-primary: #ece4f0;
  --text-secondary: #b0a0c0;
  --accent: #b898d0;
  --accent-dim: rgba(184, 152, 208, 0.12);
  --control-bg: rgba(42, 24, 72, 0.7);
  --control-hover: rgba(56, 34, 88, 0.85);
  --shadow: rgba(0, 0, 0, 0.4);
  --settings-bg: rgba(18, 10, 28, 0.96);
  color-scheme: dark;
}

/* --- Slate (light, no photo) --- */
[data-palette="slate"] {
  --bg-image: none;
  --bg-1: #f0eeec;
  --bg-2: #ddd8d2;
  --overlay: rgba(240, 238, 236, 0.90);
  --card-bg: rgba(252, 250, 248, 0.93);
  --card-border: rgba(120, 90, 60, 0.18);
  --text-primary: #1a1816;
  --text-secondary: #585048;
  --accent: #7a5a30;
  --accent-dim: rgba(122, 90, 48, 0.08);
  --control-bg: rgba(255, 255, 255, 0.65);
  --control-hover: rgba(255, 255, 255, 0.88);
  --shadow: rgba(0, 0, 0, 0.06);
  --settings-bg: rgba(252, 250, 248, 0.97);
  color-scheme: light;
}

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

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

body {
  font-family: var(--font-ui);
  color: var(--text-primary);
  background: var(--bg-1);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition:
    color var(--tr-med) ease,
    background var(--tr-med) ease;
}

/* ---------- Background Layers ---------- */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.bg-gradient {
  position: absolute;
  inset: 0;
  background:
    var(--bg-image, none) center / cover no-repeat,
    linear-gradient(135deg, var(--bg-1) 0%, var(--bg-2) 50%, var(--bg-1) 100%);
}

.bg-pattern {
  position: absolute;
  inset: 0;
  /* Tileable Islamic geometric pattern: rotated square + circle */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cg fill='none' stroke='%23c9a84c' stroke-width='0.5'%3E%3Crect x='20' y='20' width='28' height='28' rx='1' transform='rotate(45 34 34)'/%3E%3Ccircle cx='40' cy='40' r='8'/%3E%3Ccircle cx='40' cy='40' r='2' fill='%23c9a84c'/%3E%3Cline x1='40' y1='2' x2='40' y2='12'/%3E%3Cline x1='40' y1='68' x2='40' y2='78'/%3E%3Cline x1='2' y1='40' x2='12' y2='40'/%3E%3Cline x1='68' y1='40' x2='78' y2='40'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 80px 80px;
  opacity: 0.35;
  transition: opacity var(--tr-med) ease;
}

[data-palette="slate"] .bg-pattern {
  opacity: 0.2;
  filter: brightness(0.3);
}

.bg-overlay {
  position: absolute;
  inset: 0;
  background: var(--overlay);
  transition: background var(--tr-med) ease;
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  right: 0;
  padding: 0.875rem;
  display: flex;
  gap: 0.5rem;
  z-index: 100;
  transition: opacity var(--tr-fast) ease;
}

.btn-icon {
  width: 44px;
  height: 44px;
  border: 1px solid var(--card-border);
  border-radius: 50%;
  background: var(--control-bg);
  color: var(--accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--tr-fast) ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.btn-icon:hover,
.btn-icon:focus-visible {
  background: var(--control-hover);
  transform: scale(1.08);
}

.btn-icon .icon {
  width: 20px;
  height: 20px;
}


/* ---------- Main ---------- */
.main {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3.5rem 1.25rem 5.5rem;
}

/* ---------- Verse Card ---------- */
.verse-card {
  max-width: 680px;
  width: 100%;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1.75rem 1.25rem;
  box-shadow: 0 8px 40px var(--shadow);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  text-align: center;
  animation: cardIn 0.7s ease-out;
  transition:
    background var(--tr-med) ease,
    border-color var(--tr-med) ease,
    box-shadow var(--tr-med) ease;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* ---------- Arabesque Divider ---------- */
.arabesque-divider {
  display: flex;
  justify-content: center;
  padding: 0.375rem 0;
  color: var(--accent);
  opacity: 0.6;
  transition: color var(--tr-med) ease;
}

.arabesque-divider svg {
  width: 100%;
  max-width: 260px;
  height: 24px;
}

/* ---------- Verse Text ---------- */
.verse-text {
  border: 0;
  padding: 1.25rem 0.25rem;
}

.verse-content {
  font-family: var(--font-verse);
  font-size: 1.25rem;
  line-height: 1.5;
  color: var(--text-primary);
  quotes: "\201E" "\201C";
}

.verse-content::before {
  content: open-quote;
  color: var(--accent);
  font-size: 1.0em;
}
.verse-content::after {
  content: close-quote;
  color: var(--accent);
  font-size: 1.0em;
}

.verse-ref {
  display: block;
  font-family: var(--font-ui);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  font-style: normal;
  margin-top: 0.875rem;
  letter-spacing: 0.04em;
  transition: color var(--tr-med) ease;
}

/* ---------- Controls ---------- */
.controls {
  position: fixed;
  bottom: 1.75rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.875rem;
  z-index: 100;
  transition: opacity var(--tr-fast) ease;
}

.btn-control {
  width: 50px;
  height: 50px;
  border: 1px solid var(--card-border);
  border-radius: 50%;
  background: var(--control-bg);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--tr-fast) ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.btn-control:hover,
.btn-control:focus-visible {
  background: var(--control-hover);
  color: var(--accent);
  transform: scale(1.1);
  border-color: var(--accent);
}

.btn-control svg {
  width: 20px;
  height: 20px;
}

/* Hide chrome on double-tap */
.chrome-hidden .controls,
.chrome-hidden .header {
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--tr-fast) ease;
}

/* Hide prev/next on mobile — swipe handles navigation */
.btn-prev,
.btn-next {
  display: none;
}

/* Pause/Play icon visibility */
.btn-pause .icon-play { display: none; }
.btn-pause .icon-pause { display: block; }
body.paused .btn-pause .icon-play { display: block; }
body.paused .btn-pause .icon-pause { display: none; }

/* ---------- Settings Panel ---------- */
.settings-panel {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: overlayIn 0.2s ease;
}

@keyframes overlayIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.settings-panel[hidden] {
  display: none;
}

.settings-content {
  background: var(--settings-bg);
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 1.75rem;
  width: 90%;
  max-width: 340px;
  position: relative;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  animation: cardIn 0.25s ease-out;
  transition:
    background var(--tr-med) ease,
    border-color var(--tr-med) ease;
}

.settings-content h2 {
  font-family: var(--font-ui);
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
}

.setting-group {
  margin-bottom: 1.25rem;
}

.setting-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.setting-group .time-value {
  color: var(--accent);
  font-weight: 600;
}

/* Range input */
.setting-group input[type="range"] {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--accent-dim);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.setting-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--card-bg);
  cursor: pointer;
}

.setting-group input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--card-bg);
  cursor: pointer;
}

/* Palette picker */
.palette-options {
  display: flex;
  gap: 0.625rem;
  flex-wrap: wrap;
}

.palette-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--tr-fast) ease;
  position: relative;
}

.palette-btn:hover {
  transform: scale(1.12);
}

.palette-btn.active {
  border-color: var(--text-primary);
  box-shadow: 0 0 0 2px var(--accent);
}

.palette-btn[data-palette="midnight"] {
  background: linear-gradient(135deg, #0b1120, #162044);
}
.palette-btn[data-palette="teal"] {
  background: linear-gradient(135deg, #081a1a, #206858);
}
.palette-btn[data-palette="amethyst"] {
  background: linear-gradient(135deg, #150a20, #382058);
}
.palette-btn[data-palette="slate"] {
  background: linear-gradient(135deg, #f0eeec, #ddd8d2);
  border-color: rgba(0, 0, 0, 0.12);
}

.btn-close-settings {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--tr-fast) ease;
}

.btn-close-settings:hover,
.btn-close-settings:focus-visible {
  color: var(--text-primary);
  background: var(--control-bg);
}

/* ---------- Responsive ---------- */
@media (min-width: 480px) {
  .verse-content {
    font-size: 1.4rem;
  }
  .verse-card {
    padding: 2rem 1.75rem;
  }
  .arabesque-divider svg {
    max-width: 300px;
  }
}

@media (min-width: 768px) {
  .verse-content {
    font-size: 1.55rem;
  }
  .verse-card {
    padding: 2.5rem 2.25rem;
    border-radius: 16px;
  }
  .controls {
    bottom: 2rem;
    gap: 1rem;
  }
  .btn-control {
    width: 54px;
    height: 54px;
  }
  .btn-prev,
  .btn-next {
    display: flex;
  }
  .arabesque-divider svg {
    max-width: 340px;
  }
}

@media (min-width: 1024px) {
  .verse-content {
    font-size: 1.7rem;
  }
  .verse-card {
    max-width: 780px;
    padding: 3rem 2.75rem;
  }
}

/* ---------- Landscape ---------- */
@media (orientation: landscape) and (max-height: 500px) {
  .main {
    padding-top: 2.5rem;
    padding-bottom: 4rem;
  }
  .controls {
    bottom: 0.5rem;
  }
  .btn-control {
    width: 36px;
    height: 36px;
  }
  .btn-control svg {
    width: 16px;
    height: 16px;
  }
  .header {
    padding: 0.5rem;
  }
  .btn-icon {
    width: 34px;
    height: 34px;
  }
  .btn-icon .icon {
    width: 16px;
    height: 16px;
  }
}

/* ---------- Accessibility ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: more) {
  [data-palette="midnight"],
  [data-palette="teal"],
  [data-palette="amethyst"] {
    --card-bg: rgba(0, 0, 0, 0.97);
    --text-primary: #ffffff;
    --overlay: rgba(0, 0, 0, 0.95);
  }
  [data-palette="slate"] {
    --card-bg: rgba(255, 255, 255, 0.97);
    --text-primary: #000000;
    --overlay: rgba(255, 255, 255, 0.95);
  }
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

button:focus:not(:focus-visible) {
  outline: none;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}