:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --surface-2: #f0ede5;
  --text: #1d2a24;
  --muted: #66736c;
  --border: #e3ded2;
  --primary: #0f7a5c;
  --primary-ink: #ffffff;
  --primary-soft: #dff2ea;
  --accent: #e8a33d;
  --good: #1f9d55;
  --good-soft: #e1f5e9;
  --bad: #d64545;
  --bad-soft: #fbe6e6;
  --shadow: 0 1px 2px rgba(20, 30, 25, .06), 0 6px 20px rgba(20, 30, 25, .06);
  --radius: 18px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121815;
    --surface: #1b2420;
    --surface-2: #232e29;
    --text: #e9efe9;
    --muted: #9aa8a0;
    --border: #2e3a34;
    --primary: #3fbf94;
    --primary-ink: #0b1a14;
    --primary-soft: #1f3a30;
    --accent: #f0b65a;
    --good: #4cc483;
    --good-soft: #1c3527;
    --bad: #ef6b6b;
    --bad-soft: #3a2323;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 6px 20px rgba(0, 0, 0, .25);
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Tajawal", system-ui, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.latin {
  font-family: "Nunito", system-ui, sans-serif;
  direction: ltr;
  unicode-bidi: isolate;
}

button { font: inherit; color: inherit; cursor: pointer; }
a { color: inherit; text-decoration: none; }

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 22px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 12px;
  display: grid; place-items: center;
  background: var(--primary); color: var(--primary-ink);
  font-size: 22px;
}
.topbar-right { display: flex; align-items: center; gap: 10px; }
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  font-weight: 700; font-size: 15px;
}
.pill-btn:hover { border-color: var(--primary); }

.container {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 8px 20px 40px;
  outline: none;
}

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  padding: 20px;
}

/* ---------- Home ---------- */
.hero { text-align: center; padding: 36px 0 24px; }
.hero h1 { font-size: clamp(28px, 6vw, 42px); margin: 0 0 8px; line-height: 1.3; }
.hero p { color: var(--muted); margin: 0; font-size: 18px; }

.lang-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 24px;
}
.lang-card {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 6px;
  padding: 32px 20px;
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform .15s ease, border-color .15s ease;
}
.lang-card:hover, .lang-card:focus-visible { transform: translateY(-3px); border-color: var(--primary); outline: none; }
.lang-flag { display: inline-flex; line-height: 1; }
.flag { height: 1em; width: auto; border-radius: 4px; box-shadow: 0 0 0 1px rgba(0, 0, 0, .12); direction: ltr; }
.lang-flag .flag { height: 56px; border-radius: 8px; }
.course-head .lang-flag .flag { height: 44px; }
.pill .flag { height: 14px; border-radius: 2px; }
.lang-card h2 { margin: 8px 0 0; font-size: 26px; }
.lang-card .latin { color: var(--muted); font-size: 18px; }
.lang-card p { margin: 4px 0 12px; color: var(--muted); font-size: 15px; }
.progress-line { width: 100%; max-width: 220px; }

.features {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px; margin-top: 36px;
}
.feature { background: var(--surface-2); border-radius: 14px; padding: 16px; }
.feature b { display: block; margin-bottom: 2px; }
.feature span { color: var(--muted); font-size: 15px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 14px; border: 0;
  background: var(--primary); color: var(--primary-ink);
  font-weight: 800; font-size: 17px;
  box-shadow: 0 3px 0 rgba(0, 0, 0, .18);
  transition: transform .08s ease, filter .15s ease;
}
.btn:hover { filter: brightness(1.06); }
.btn:active { transform: translateY(2px); box-shadow: none; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-ghost {
  background: var(--surface); color: var(--text);
  border: 2px solid var(--border); box-shadow: none;
}
.btn-ghost:hover { border-color: var(--primary); }
.btn-wide { width: 100%; }

/* ---------- Course page ---------- */
.course-head {
  display: flex; align-items: center; gap: 16px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow);
  margin: 12px 0 22px;
}
.course-head h1 { margin: 0; font-size: 26px; }
.course-head p { margin: 0; color: var(--muted); }
.course-head .grow { flex: 1; min-width: 0; }

.bar { height: 10px; background: var(--surface-2); border-radius: 999px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--primary); border-radius: 999px; transition: width .3s ease; }

.units { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.unit {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 12px;
}
.unit-top { display: flex; align-items: center; gap: 12px; }
.unit-icon {
  width: 52px; height: 52px; border-radius: 14px; flex: none;
  display: grid; place-items: center; font-size: 28px;
  background: var(--primary-soft);
}
.unit h3 { margin: 0; font-size: 20px; }
.unit small { color: var(--muted); }
.stars { color: var(--accent); letter-spacing: 2px; font-size: 18px; }
.stars .off { color: var(--border); }
.unit-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.unit-actions .btn { padding: 10px 12px; font-size: 16px; }

/* ---------- Lesson (learn) ---------- */
.session-head { display: flex; align-items: center; gap: 12px; margin: 10px 0 20px; }
.close-btn {
  width: 42px; height: 42px; border-radius: 12px; flex: none;
  border: 2px solid var(--border); background: var(--surface);
  font-size: 20px; display: grid; place-items: center;
}
.close-btn:hover { border-color: var(--bad); color: var(--bad); }
.session-head .bar { flex: 1; height: 14px; }
.count { font-weight: 700; color: var(--muted); min-width: 52px; text-align: center; }

.tip {
  display: flex; gap: 10px; align-items: flex-start;
  background: var(--primary-soft); border-radius: 14px;
  padding: 12px 16px; margin-bottom: 18px; font-size: 16px;
}

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 24px; box-shadow: var(--shadow);
  padding: 36px 22px; text-align: center;
  max-width: 560px; margin: 0 auto;
}
.word { font-size: clamp(32px, 8vw, 50px); font-weight: 800; margin: 0; line-height: 1.2; word-break: break-word; }
.pron { color: var(--muted); font-size: 20px; margin-top: 8px; }
.meaning {
  display: inline-block; margin-top: 18px; padding: 8px 20px;
  border-radius: 999px; background: var(--surface-2);
  font-size: 24px; font-weight: 700;
}
.speak {
  width: 64px; height: 64px; border-radius: 50%;
  border: 0; background: var(--primary); color: var(--primary-ink);
  font-size: 28px; display: inline-grid; place-items: center;
  margin-bottom: 18px; box-shadow: 0 3px 0 rgba(0, 0, 0, .18);
}
.speak:active { transform: translateY(2px); box-shadow: none; }
.speak.small { width: 44px; height: 44px; font-size: 20px; margin: 0; }

.nav-row {
  display: flex; gap: 10px; justify-content: space-between;
  max-width: 560px; margin: 20px auto 0;
}
.nav-row .btn { flex: 1; }

/* ---------- Quiz ---------- */
.q-label { text-align: center; color: var(--muted); font-weight: 700; margin-bottom: 8px; }
.q-prompt { text-align: center; margin-bottom: 22px; }
.q-prompt .word { font-size: clamp(28px, 7vw, 42px); }

.options {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  max-width: 560px; margin: 0 auto;
}
.option {
  padding: 16px 12px; min-height: 64px;
  background: var(--surface); border: 2px solid var(--border);
  border-radius: 16px; font-size: 19px; font-weight: 700;
  box-shadow: 0 3px 0 var(--border);
  transition: border-color .12s ease, background .12s ease;
}
.option:hover:not(:disabled) { border-color: var(--primary); }
.option.selected { border-color: var(--primary); background: var(--primary-soft); }
.option.correct { border-color: var(--good); background: var(--good-soft); }
.option.wrong { border-color: var(--bad); background: var(--bad-soft); }
.option:disabled { cursor: default; }

.feedback {
  max-width: 560px; margin: 20px auto 0;
  border-radius: 16px; padding: 14px 16px;
  display: flex; flex-direction: column; gap: 10px;
}
.feedback.ok { background: var(--good-soft); }
.feedback.no { background: var(--bad-soft); }
.feedback .title { font-weight: 800; font-size: 19px; }
.feedback.ok .title { color: var(--good); }
.feedback.no .title { color: var(--bad); }
.check-wrap { max-width: 560px; margin: 20px auto 0; }

/* ---------- Results ---------- */
.result { text-align: center; padding: 30px 0; }
.result .big { font-size: 72px; line-height: 1; }
.result h1 { margin: 12px 0 4px; }
.result .score { font-size: 22px; color: var(--muted); }
.result .stars { font-size: 40px; margin: 12px 0 24px; }
.result .actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.review { max-width: 560px; margin: 26px auto 0; text-align: start; }
.review h3 { margin: 0 0 10px; }
.review-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 12px; background: var(--surface);
  border: 1px solid var(--border); margin-bottom: 8px;
}
.review-item .grow { flex: 1; }

/* ---------- Splash ---------- */
.splash {
  position: fixed; inset: 0; z-index: 100;
  display: grid; place-items: center; padding: 16px;
  background: var(--bg);
}
.splash-card { animation: fade-in .5s ease; }
.splash[hidden] { display: none; }
.splash.leaving { animation: fade-out .35s ease forwards; }
.splash-card {
  width: 100%; max-width: 460px; text-align: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 24px; box-shadow: var(--shadow);
  padding: 32px 24px;
}
.splash-heart { font-size: 56px; line-height: 1; margin-bottom: 8px; }
.splash h1 { margin: 0 0 14px; font-size: 28px; }
.splash p { margin: 0 0 12px; font-size: 18px; line-height: 1.9; }
.splash .name { color: var(--primary); }
.splash-note { color: var(--muted); font-size: 16px !important; margin-bottom: 22px !important; }
@keyframes fade-in { from { opacity: 0; } }
@keyframes fade-out { to { opacity: 0; visibility: hidden; } }

/* ---------- Method (home) ---------- */
.method {
  margin-top: 36px; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow);
}
.method h2 { margin: 0 0 14px; font-size: 21px; }
.method-steps {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px;
}
.method-steps li { background: var(--surface-2); border-radius: 14px; padding: 14px; }
.method-steps b { display: block; margin-bottom: 4px; }
.method-steps span { color: var(--muted); font-size: 15px; }
.method-note { color: var(--muted); font-size: 15px; margin: 14px 0 0; text-align: center; }

/* ---------- Today panel ---------- */
.today {
  display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: center;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px 20px; box-shadow: var(--shadow);
  margin-bottom: 22px;
}
.today-stat { display: flex; flex-direction: column; align-items: center; min-width: 74px; }
.today-big { font-size: 26px; font-weight: 800; }
.today-stat small { color: var(--muted); }
.goal-label { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 6px; font-size: 15px; }
.goal-label span { color: var(--muted); }
.goal-bar > i { background: var(--accent); }
.review-btn { white-space: nowrap; }
.review-none { color: var(--muted); font-size: 15px; text-align: center; }

.level-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 10px;
  margin: 26px 0 12px;
}
.level-head:first-of-type { margin-top: 4px; }
.level-head h2 { margin: 0; font-size: 21px; }
.level-head span { color: var(--muted); font-weight: 700; }

/* ---------- Unit steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.step {
  text-align: center; padding: 9px 4px; border-radius: 12px;
  border: 2px solid var(--border); background: var(--surface);
  font-weight: 700; font-size: 15px; white-space: nowrap;
}
.step:hover { border-color: var(--primary); }
.step.done { background: var(--primary-soft); border-color: transparent; color: var(--primary); }
.step.primary { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); }

/* ---------- Story / dialog ---------- */
.center { text-align: center; margin-bottom: 16px; }
.dialog { max-width: 620px; margin: 0 auto 22px; display: flex; flex-direction: column; gap: 12px; }
.line { display: flex; gap: 10px; align-items: flex-start; }
.line.b { flex-direction: row-reverse; }
.avatar {
  width: 40px; height: 40px; border-radius: 50%; flex: none;
  display: grid; place-items: center; font-weight: 800;
  background: var(--primary-soft); color: var(--primary);
}
.line.b .avatar { background: #fde9cf; color: #a4620b; }
.bubble {
  background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
  padding: 10px 14px; box-shadow: var(--shadow); max-width: 85%;
}
.who { font-size: 13px; color: var(--muted); font-weight: 700; }
.line-text { font-size: 20px; font-weight: 700; text-align: left; }
.line-tr { color: var(--muted); margin-top: 2px; }
.line-actions { display: flex; gap: 6px; margin-top: 6px; flex-wrap: wrap; }
.mini {
  border: 1px solid var(--border); background: var(--surface-2);
  border-radius: 999px; padding: 3px 12px; font-size: 14px; font-weight: 700;
}
.mini:hover { border-color: var(--primary); }
.comp { padding: 22px; }
.comp-q { font-size: 20px; font-weight: 700; margin: 0 0 16px; }

/* ---------- Speaking ---------- */
.shadow-row { margin-top: 20px; display: flex; flex-direction: column; align-items: center; gap: 8px; }
.mic-out { min-height: 1em; display: flex; flex-direction: column; align-items: center; gap: 2px; font-size: 15px; }
.mic-out small { color: var(--muted); }
.mic-score { font-weight: 800; }
.mic-score.great { color: var(--good); }
.mic-score.ok { color: var(--accent); }
.mic-score.low { color: var(--bad); }
.listening { animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .6; } }

/* ---------- Typing ---------- */
.type-wrap { max-width: 560px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.type-input {
  width: 100%; padding: 14px 16px; font-size: 22px;
  border: 2px solid var(--border); border-radius: 16px;
  background: var(--surface); color: var(--text); text-align: left;
}
.type-input:focus { outline: none; border-color: var(--primary); }
.type-input.correct { border-color: var(--good); background: var(--good-soft); }
.type-input.wrong { border-color: var(--bad); background: var(--bad-soft); }
.accent-keys { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; direction: ltr; }
.key {
  min-width: 40px; padding: 6px 10px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--surface); font-size: 18px;
}
.key:hover { border-color: var(--primary); }
.type-actions { display: grid; grid-template-columns: 1fr 2fr; gap: 10px; }
.note { font-size: 15px; }
.xp-line { color: var(--muted); margin: -10px 0 20px; }

@media (max-width: 640px) {
  .today { grid-template-columns: auto 1fr; }
  .today-review { grid-column: 1 / -1; }
  .review-btn { width: 100%; }
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  .topbar, .container { padding-left: 16px; padding-right: 16px; }
  .options { grid-template-columns: 1fr; }
  .course-head { flex-wrap: wrap; }
  .card { padding: 28px 16px; }
}