:root {
  --bg-deep: #0a1e2b;
  --bg-mid: #12384b;
  --bg-soft: #f4efe6;
  --ink: #11212d;
  --ink-soft: #335063;
  --accent: #ef7d32;
  --accent-2: #2ca58d;
  --ok: #2a9d8f;
  --warn: #e76f51;
  --card: rgba(255, 255, 255, 0.9);
  --line: rgba(17, 33, 45, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 10% 15%, #18465f 0%, transparent 30%),
    radial-gradient(circle at 85% 20%, #2a6f97 0%, transparent 28%),
    linear-gradient(130deg, var(--bg-deep), var(--bg-mid) 40%, #1f6f8b 100%);
  overflow-x: hidden;
}

.bg-shape {
  position: fixed;
  border-radius: 50%;
  filter: blur(2px);
  opacity: 0.25;
  pointer-events: none;
}

.shape-1 {
  width: 380px;
  height: 380px;
  background: #f4a261;
  top: -120px;
  right: -90px;
  animation: float 9s ease-in-out infinite;
}

.shape-2 {
  width: 260px;
  height: 260px;
  background: #2ca58d;
  bottom: -80px;
  left: -70px;
  animation: float 11s ease-in-out infinite reverse;
}

.app-shell {
  width: min(960px, 92vw);
  margin: 28px auto;
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
  color: #f8f4ec;
  margin-bottom: 20px;
  animation: slideIn 0.8s ease;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  opacity: 0.75;
}

h1,
h2,
h3 {
  font-family: "Manrope", system-ui, sans-serif;
  margin: 0;
  line-height: 1.2;
}

h1 {
  font-size: clamp(1.4rem, 3.8vw, 2.2rem);
}

.stats {
  display: flex;
  gap: 10px;
}

.pill {
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 14px;
  padding: 8px 12px;
  min-width: 86px;
}

.pill span {
  display: block;
  font-size: 0.74rem;
  opacity: 0.8;
}

.pill strong {
  font-size: 1rem;
}

.screen {
  display: none;
}

.screen.active {
  display: block;
  animation: popIn 0.35s ease;
}

.panel {
  background: var(--card);
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 14px 35px rgba(8, 23, 36, 0.28);
  backdrop-filter: blur(4px);
}

.intro-panel {
  padding: 20px 24px;
  margin-bottom: 16px;
}

.intro-panel p {
  margin: 8px 0 0;
  color: var(--ink-soft);
  max-width: 65ch;
}

.path-tools {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: end;
}

.placement-picker {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--ink-soft);
}

.placement-picker select {
  min-width: 145px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  background: #fff;
  font: inherit;
  color: var(--ink);
}

.lesson-path {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
}

.vocabulary-heading {
  margin: 30px 0 12px;
}

.vocabulary-heading p {
  margin: 8px 0 0;
  color: var(--ink-soft);
}

.lesson-node {
  text-align: left;
  border-radius: 18px;
  border: 1px solid var(--line);
  padding: 14px;
  background: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.lesson-node strong {
  display: block;
  margin-bottom: 4px;
}

.lesson-node .letters {
  font-family: "Noto Nastaliq Urdu", sans-serif;
  font-size: 1.35rem;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.lesson-node .meta {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.intro-word {
  appearance: none;
  border: 1px solid rgba(44, 165, 141, 0.4);
  background: #edfaf7;
  color: var(--ink);
  border-radius: 999px;
  padding: 0.12rem 0.6rem;
  margin: 0 0.15rem;
  cursor: pointer;
  font-family: "Noto Nastaliq Urdu", sans-serif;
  font-size: 1.15rem;
  line-height: 1.5;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.intro-word:hover,
.intro-word:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(44, 165, 141, 0.8);
  box-shadow: 0 6px 14px rgba(44, 165, 141, 0.15);
  outline: none;
}

.vocabulary-example {
  display: grid;
  gap: 8px;
  margin-top: 8px;
  font-family: "Noto Nastaliq Urdu", sans-serif;
  font-size: 1.15rem;
  line-height: 1.9;
}

.lesson-node.unlocked {
  cursor: pointer;
}

.lesson-node.unlocked:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 18px rgba(11, 35, 45, 0.14);
}

.lesson-node.locked {
  opacity: 0.55;
  background: #f3f4f7;
}

.lesson-node.done {
  border-color: rgba(42, 157, 143, 0.5);
  background: #edfaf7;
}

.lesson-panel,
.result-panel {
  padding: 20px;
}

.lesson-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.lesson-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.heart-meter,
.mode-tag {
  font-size: 0.88rem;
  font-weight: 700;
  background: #f3f6f8;
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 6px 10px;
}

.heart-meter.low {
  background: #fee8e3;
  border-color: rgba(231, 111, 81, 0.4);
  color: #9b3d2b;
}

.progress-wrap {
  margin: 16px 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.progress-track {
  flex: 1;
  height: 11px;
  background: #e6ecef;
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.25s ease;
}

#progressLabel {
  font-weight: 700;
  min-width: 42px;
}

.lesson-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  min-height: 160px;
}

.prompt {
  margin: 0;
  color: var(--ink-soft);
  font-weight: 600;
}

.big-glyph {
  font-family: "Noto Nastaliq Urdu", sans-serif;
  font-size: clamp(2.4rem, 10vw, 4.2rem);
  line-height: 1;
  margin: 12px 0;
}

.big-glyph.intro-word {
  display: block;
  width: fit-content;
  margin-left: auto;
  margin-right: 0;
  padding: 0.1rem 0.8rem;
  font-size: clamp(2.4rem, 10vw, 4.2rem);
  line-height: 1;
  text-align: right;
}

[dir="rtl"] {
  font-family: "Noto Nastaliq Urdu", sans-serif;
}

.reading {
  font-size: 1rem;
  background: #f4f8fa;
  border-radius: 10px;
  display: inline-block;
  padding: 6px 10px;
  margin-top: 8px;
}

.choices {
  margin-top: 12px;
  display: grid;
  gap: 10px;
}

.choice {
  text-align: left;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  font-size: 0.98rem;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.choice:hover {
  background: #f9f7f2;
}

.choice.selected {
  border-color: var(--accent);
  background: #fff2ea;
}

.choice.correct {
  border-color: var(--ok);
  background: #e8f8f4;
}

.choice.wrong {
  border-color: var(--warn);
  background: #fdeeea;
}

.actions {
  margin-top: 14px;
  display: flex;
  gap: 10px;
}

.answer-feedback {
  margin: 10px 0 0;
  min-height: 24px;
  color: var(--ink-soft);
  font-weight: 700;
}

.answer-feedback.good {
  color: var(--ok);
}

.answer-feedback.bad {
  color: var(--warn);
}

button {
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-weight: 700;
  padding: 10px 14px;
}

.primary-btn {
  background: var(--accent);
  color: #fff;
}

.secondary-btn {
  background: var(--accent-2);
  color: #fff;
}

.ghost-btn {
  background: #eef2f4;
  color: var(--ink);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.result-breakdown {
  margin-top: 12px;
  font-size: 0.96rem;
  color: var(--ink-soft);
  line-height: 1.6;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0) translateX(0);
  }
  50% {
    transform: translateY(14px) translateX(8px);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes popIn {
  from {
    opacity: 0;
    transform: scale(0.98);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@media (max-width: 700px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .stats {
    width: 100%;
  }

  .pill {
    flex: 1;
  }

  .lesson-path {
    grid-template-columns: 1fr;
  }

  .path-tools > * {
    width: 100%;
  }
}