:root {

  --accent: #7c5cff;
  --accent-2: #ff7ac6;
  --accent-3: #35c4a7;

  --bg: #f6f4ff;
  --bg-soft: #ffffff;
  --card: #ffffff;
  --ink: #201a3a;
  --ink-soft: #6b6786;
  --line: #e7e3f5;
  --shadow: 0 18px 40px rgba(60, 40, 120, 0.14);
  --shadow-soft: 0 8px 20px rgba(60, 40, 120, 0.10);

  --radius: 28px;
  --radius-lg: 40px;
  --gap: clamp(12px, 3vw, 24px);
  --text-scale: 1;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 360ms;

  --touch: 64px;

  --font-arabic: "Noto Naskh Arabic", "SF Arabic", "Geeza Pro", "Sakkal Majalla",
    "Arabic Typesetting", "Traditional Arabic", "Amiri", "Scheherazade New",
    "Noto Sans Arabic", "Tahoma", sans-serif;
}

[data-theme="dark"] {
  --bg: #14122a;
  --bg-soft: #1d1b38;
  --card: #221f42;
  --ink: #f4f1ff;
  --ink-soft: #a9a4cc;
  --line: #322e57;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  --shadow-soft: 0 8px 20px rgba(0, 0, 0, 0.35);
}

[data-textsize="large"] { --text-scale: 1.28; }

[data-anim="off"] * {
  animation: none !important;
  transition: none !important;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: "Nunito", "Baloo 2", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: calc(18px * var(--text-scale));
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  user-select: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

h1, h2, h3 { margin: 0; font-weight: 800; letter-spacing: -0.01em; }
button { font-family: inherit; cursor: pointer; border: none; color: inherit; }
button:focus-visible {
  outline: 4px solid var(--accent);
  outline-offset: 3px;
}

.app { height: 100%; position: relative; }

.screen {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  padding: env(safe-area-inset-top) 0 env(safe-area-inset-bottom);
}
.screen.is-active { display: flex; animation: screen-in var(--dur) var(--ease); }

@keyframes screen-in {
  from { opacity: 0; transform: translateY(10px) scale(0.99); }
  to   { opacity: 1; transform: none; }
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  padding: clamp(14px, 3vw, 22px) var(--gap);
}
.top-bar--lesson { border-bottom: 2px solid var(--line); }

.brand {
  font-size: clamp(1.3rem, 5vw, 2rem);
  display: flex; align-items: center; gap: 0.4em;
}

.top-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.chip {
  background: var(--bg-soft);
  border: 2px solid var(--line);
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 800;
  font-size: 0.95rem;
  min-height: 52px;
  box-shadow: var(--shadow-soft);
  transition: transform 160ms var(--ease);
}
.chip:active { transform: scale(0.94); }

.icon-btn {
  background: none;
  font-weight: 800;
  font-size: 1.05rem;
  padding: 12px 16px;
  border-radius: 16px;
  min-width: 5rem;
  min-height: var(--touch);
  text-align: left;
}
.icon-btn:active { background: var(--line); }
.icon-btn--gear {
  min-width: var(--touch);
  font-size: 1.5rem;
  text-align: center;
  padding: 12px;
}

.lesson-title { font-size: clamp(1.1rem, 4vw, 1.6rem); text-align: center; }
.lesson-progress { font-weight: 800; color: var(--ink-soft); min-width: 5rem; text-align: right; }

.home-main { flex: 1; overflow-y: auto; padding: 0 var(--gap) calc(var(--gap) * 2); }
.home-hint { color: var(--ink-soft); font-weight: 700; margin: 6px 4px 18px; }

.lesson-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--gap);
  padding: var(--gap);
  min-height: 0;
}

.nav-arrow {
  flex: 0 0 auto;
  width: clamp(56px, 11vw, 84px);
  height: clamp(56px, 11vw, 84px);
  border-radius: 50%;
  background: var(--bg-soft);
  border: 2px solid var(--line);
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 800;
  line-height: 1;
  color: var(--accent);
  box-shadow: var(--shadow-soft);
  display: flex; align-items: center; justify-content: center;
  transition: transform 160ms var(--ease);
}
.nav-arrow:active { transform: scale(0.9); }
.nav-arrow:disabled { opacity: 0.3; }

.card-host {
  flex: 1 1 auto;
  min-width: 0;
  max-width: 780px;
  height: 100%;
  display: flex;
  container-type: size;
  container-name: card;
}

.card {
  flex: 1 1 auto;
  width: 100%;
  height: 100%;
  justify-content: center;
  background: var(--card);
  border: 3px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: clamp(14px, 5vmin, 48px);
  padding: clamp(14px, 5cqmin, 48px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(6px, 2.4vmin, 24px);
  gap: clamp(6px, 2.4cqmin, 24px);
  text-align: center;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  animation: card-pop var(--dur) var(--ease);
}
.card::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--card-color, var(--accent)) 0%, transparent 60%);
  opacity: 0.14; pointer-events: none;
}
@keyframes card-pop {
  from { opacity: 0; transform: scale(0.9) rotate(-1deg); }
  to   { opacity: 1; transform: none; }
}

.card-glyph {
  font-size: clamp(3.5rem, 30vmin, 15rem);
  font-size: clamp(3.5rem, 34cqmin, 15rem);
  line-height: 1;
  font-weight: 800;
  position: relative;
  max-width: 100%;
}
.card-sub {
  font-size: clamp(1.8rem, 13vmin, 6.5rem);
  font-size: clamp(1.8rem, 15cqmin, 6.5rem);
  line-height: 1;
  color: var(--accent);
  font-weight: 800;
  position: relative;
}
.card-title {
  font-size: clamp(1.3rem, 7vmin, 3.6rem);
  font-size: clamp(1.3rem, 8cqmin, 3.6rem);
  font-weight: 800;
  position: relative;
  max-width: 100%;
  overflow-wrap: break-word;
}
.card-caption {
  color: var(--ink-soft);
  font-weight: 700;
  font-size: clamp(0.95rem, 3.2vmin, 1.5rem);
  font-size: clamp(0.95rem, 4cqmin, 1.5rem);
  position: relative;
  max-width: 100%;
}
.card-arabic {
  direction: rtl;
  font-family: var(--font-arabic);
  line-height: 1.35;
  font-feature-settings: "liga" 1, "calt" 1, "mark" 1, "init" 1, "medi" 1, "fina" 1;
}

.swatch {
  width: clamp(140px, 42vmin, 320px);
  width: clamp(140px, 46cqmin, 320px);
  height: clamp(140px, 42vmin, 320px);
  height: clamp(140px, 46cqmin, 320px);
  aspect-ratio: 1;
  border-radius: 18%;
  box-shadow: var(--shadow);
  border: 4px solid rgba(255,255,255,0.5);
  position: relative;
}

.quantity {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-content: center;
  gap: clamp(4px, 1.6vmin, 16px);
  max-width: 100%;
  max-height: 60cqb;
  overflow: hidden;
  position: relative;
  font-size: clamp(1.6rem, 5vmin, 3.2rem);
  font-size: clamp(1.6rem, 7cqmin, 3.2rem);
}
.count-item {
  background: none;
  font-size: clamp(2rem, 8vmin, 4.2rem);
  font-size: clamp(2rem, 11cqmin, 4.2rem);
  line-height: 1;
  padding: 4px;
  border-radius: 18px;
  transition: transform 200ms var(--ease);
}
.count-item.is-counted {
  transform: scale(1.25);
  filter: drop-shadow(0 6px 10px rgba(0,0,0,0.2));
}
.count-item:active { transform: scale(0.85); }

.pair {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 4vmin, 40px);
  gap: clamp(10px, 5cqmin, 40px);
  max-width: 100%;
  position: relative;
}
.pair-half { display: flex; flex-direction: column; align-items: center; gap: 6px; min-width: 0; }
.pair-half .card-glyph {
  font-size: clamp(3rem, 16vmin, 8.5rem);
  font-size: clamp(3rem, 22cqmin, 8.5rem);
}
.pair-vs { font-size: clamp(1.2rem, 4vmin, 2.2rem); color: var(--ink-soft); font-weight: 800; flex: 0 0 auto; }

.lesson-controls {
  display: flex;
  gap: var(--gap);
  justify-content: center;
  padding: var(--gap) var(--gap) calc(var(--gap) + 6px);
}
.pill-btn {
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 16px 26px;
  font-weight: 800;
  font-size: 1.05rem;
  min-height: var(--touch);
  box-shadow: var(--shadow-soft);
  transition: transform 160ms var(--ease), filter 160ms var(--ease);
}
.pill-btn:active { transform: scale(0.94); filter: brightness(1.05); }
.pill-btn--soft { background: var(--accent-3); }
.pill-btn--danger { background: #ff5d6c; }


.toast {
  position: fixed;
  left: 50%;
  bottom: calc(env(safe-area-inset-bottom) + 20px);
  transform: translate(-50%, 30px);
  background: var(--ink);
  color: var(--bg);
  padding: 14px 22px;
  border-radius: 999px;
  font-weight: 800;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 240ms var(--ease), transform 240ms var(--ease);
  z-index: 60;
  max-width: 90vw;
  text-align: center;
}
.toast.is-on { opacity: 1; transform: translate(-50%, 0); }

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(32, 26, 58, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 240ms var(--ease);
  z-index: 100;
  padding: var(--gap);
}
.overlay.is-open {
  opacity: 1;
  pointer-events: auto;
}
.overlay-content {
  background: var(--card);
  padding: 30px;
  border-radius: var(--radius);
  max-width: 400px;
  width: 100%;
  max-height: 88vh;
  overflow-y: auto;
  text-align: center;
  box-shadow: var(--shadow);
  transform: translateY(20px);
  transition: transform 240ms var(--ease);
}
.overlay-content--wide { max-width: 460px; }
.overlay.is-open .overlay-content {
  transform: translateY(0);
}
.overlay-content h3 { margin-bottom: 12px; color: var(--accent); }
.overlay-content p { font-size: 1.1rem; color: var(--ink); margin-bottom: 24px; line-height: 1.5; }

@media (max-width: 380px) {
  .top-actions .chip { padding: 10px 12px; font-size: 0.85rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* ===========================================================================
   Curriculum path — age bands, level journey, mastery gates
   =========================================================================== */

.chip.is-on {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* The four-stage pedagogical spine shown at the top of Home. */
.stage-legend {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px 10px;
  margin: 0 4px 16px;
  color: var(--ink-soft);
  font-weight: 800;
  font-size: 0.78rem;
}
.stage-step {
  background: var(--bg-soft);
  border: 2px solid var(--line);
  border-radius: 999px;
  padding: 5px 12px;
}
.stage-arrow { color: var(--accent); font-weight: 900; }

/* Age-band selector */
.band-tabs {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 2px 4px 12px;
  scrollbar-width: none;
}
.band-tabs::-webkit-scrollbar { display: none; }

.band-tab {
  flex: 0 0 auto;
  background: var(--card);
  border: 2px solid var(--line);
  border-radius: 20px;
  padding: 10px 16px;
  min-height: 56px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  box-shadow: var(--shadow-soft);
  transition: transform 160ms var(--ease), border-color 160ms var(--ease);
}
.band-tab:active { transform: scale(0.95); }
.band-tab.is-active { border-color: var(--accent); background: var(--accent); color: #fff; }
.band-tab-step { font-weight: 900; font-size: 0.95rem; }
.band-tab-label { font-weight: 700; font-size: 0.72rem; opacity: 0.8; }

/* Band intro card */
.band-intro-inner {
  background: var(--bg-soft);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 6px 4px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow-soft);
}
.band-stage-chip {
  align-self: flex-start;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 4px 12px;
  font-weight: 800;
  font-size: 0.75rem;
}
.band-blurb { margin: 0; color: var(--ink); font-weight: 600; line-height: 1.45; }
.band-dur { color: var(--ink-soft); font-weight: 800; font-size: 0.78rem; }

/* Level journey */
.level-path {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--gap);
  list-style: none;
  margin: 0;
  padding: 0;
}
/* The <li> is a semantics-only wrapper; the level card is the real grid item. */
.level-item { display: contents; }

.level-card {
  background: var(--card);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease);
}
.level-card::before {
  content: "";
  position: absolute; inset: 0;
  background: var(--tile-color, var(--accent));
  opacity: 0.07;
  pointer-events: none;
}
.level-card:active { transform: scale(0.97); box-shadow: var(--shadow); }
.level-card.is-locked { opacity: 0.6; }
.level-card.is-complete { border-color: var(--accent-3); }
.level-card.is-open { border-color: var(--tile-color, var(--accent)); }

.level-top {
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
}
.level-num {
  font-weight: 900;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.level-stage {
  background: var(--bg-soft);
  border: 2px solid var(--line);
  border-radius: 999px;
  padding: 2px 10px;
  font-weight: 800;
  font-size: 0.68rem;
}
.level-flag { margin-left: auto; font-size: 1.2rem; }

.level-title { position: relative; font-size: 1.15rem; }
.level-obj { position: relative; margin: 0; color: var(--ink-soft); font-weight: 600; font-size: 0.85rem; line-height: 1.4; }

.level-bar {
  position: relative;
  height: 10px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}
.level-bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--tile-color, var(--accent));
  transition: width var(--dur) var(--ease);
}
.is-complete .level-bar-fill { background: var(--accent-3); }

.level-meta { position: relative; font-weight: 800; font-size: 0.75rem; color: var(--ink-soft); }

.level-tip {
  position: relative;
  background: var(--bg-soft);
  border-radius: 14px;
  padding: 8px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
}
.level-lock-note {
  position: relative;
  font-weight: 800;
  font-size: 0.78rem;
  color: var(--ink-soft);
}

/* Level-complete celebration */
.confetti {
  position: fixed;
  top: -8vh;
  z-index: 999;
  pointer-events: none;
  animation: confetti-fall 1.6s var(--ease) forwards;
}
@keyframes confetti-fall {
  0%   { transform: translateY(0) rotate(0deg); opacity: 1; }
  100% { transform: translateY(112vh) rotate(320deg); opacity: 0; }
}
[data-anim="off"] .confetti { display: none; }

/* ===========================================================================
   Settings panel — theme, accessibility, unlock override, backup/restore
   =========================================================================== */

.settings-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: left;
  margin-bottom: 22px;
}

.set-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 4px;
}
.set-ico { font-size: 1.5rem; flex: 0 0 auto; width: 1.6em; text-align: center; }
.set-text { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.set-label { font-weight: 800; }
.set-hint { font-size: 0.78rem; color: var(--ink-soft); font-weight: 600; line-height: 1.35; }

.switch {
  flex: 0 0 auto;
  width: 58px;
  height: 34px;
  border-radius: 999px;
  background: var(--line);
  position: relative;
  transition: background 160ms var(--ease);
}
.switch.is-on { background: var(--accent-3); }
.switch-knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fff;
  box-shadow: var(--shadow-soft);
  transition: transform 160ms var(--ease);
}
.switch.is-on .switch-knob { transform: translateX(24px); }

.set-divider { height: 2px; background: var(--line); margin: 12px 0; border-radius: 2px; }

.set-action {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin-bottom: 8px;
  background: var(--bg-soft);
  border: 2px solid var(--line);
  border-radius: 16px;
  padding: 12px 14px;
  font-weight: 800;
  min-height: 56px;
  text-align: left;
  transition: transform 160ms var(--ease);
}
.set-action:active { transform: scale(0.97); }
.set-action--danger { color: #ff5d6c; border-color: rgba(255, 93, 108, 0.35); }