@font-face { font-family: "Naskh"; font-weight: 400; font-display: swap; src: url("../fonts/naskh-400.woff2") format("woff2"); }
@font-face { font-family: "Naskh"; font-weight: 600; font-display: swap; src: url("../fonts/naskh-600.woff2") format("woff2"); }
@font-face { font-family: "Lora"; font-weight: 600; font-display: swap; src: url("../fonts/lora-600.woff2") format("woff2"); }
@font-face { font-family: "Lora"; font-weight: 400; font-style: italic; font-display: swap; src: url("../fonts/lora-400-italic.woff2") format("woff2"); }

/* ---------- Tokens ---------- */
:root {
  color-scheme: light;
  --bg: #f4f1ea; --side: #ede9e0; --surface: #fffdf8; --sunk: #efeae1; --raise: #ffffff;
  --ink: #1d1b17; --ink-2: #57524a; --muted: #7a746a; --faint: #a39c90;
  --line: #e6e0d4; --grid: #ebe6dc; --axis: #cfc8bb;
  --accent: #0d6b57; --accent-ink: #ffffff; --accent-soft: #deece5;
  --danger: #b4442f; --danger-soft: #f6e3dd;
  --g-again: #b4442f; --g-again-bg: #f8e6e0; --g-hard: #8f6210; --g-hard-bg: #f5ecd9;
  --g-good: #1f7a4d; --g-good-bg: #e0efe5; --g-easy: #2863a6; --g-easy-bg: #e2ebf6;
  /* data colours (validated: dataviz categorical slots 1–3, blue ordinal & sequential ramps) */
  --new: #2a78d6; --learn: #eb6834; --review: #1baf7a;
  --q1: #86b6ef; --q2: #3987e5; --q3: #1c5cab;
  --h1: #cde2fb; --h2: #9ec5f4; --h3: #5598e7; --h4: #256abf;
  --shadow-sm: 0 1px 2px rgba(40,30,10,.06);
  --shadow: 0 1px 2px rgba(40,30,10,.05), 0 10px 32px rgba(40,30,10,.07);
  --ar: "Naskh", "Geeza Pro", "Noto Naskh Arabic", "Damascus", serif;
  --ui: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", system-ui, "Segoe UI", sans-serif;
  --display: "Lora", "New York", Georgia, serif;
  --r-sm: 8px; --r: 14px; --r-lg: 20px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #131210; --side: #181715; --surface: #1c1a17; --sunk: #25231f; --raise: #23211d;
    --ink: #eeeae3; --ink-2: #c3bdb2; --muted: #9a9489; --faint: #6d675e;
    --line: #2f2c27; --grid: #2a2824; --axis: #3d3a34;
    --accent: #5cc4a6; --accent-ink: #0c1a15; --accent-soft: #1b2c26;
    --danger: #e58670; --danger-soft: #3a211b;
    --g-again: #f0947f; --g-again-bg: #3a221c; --g-hard: #e2b35f; --g-hard-bg: #362c19;
    --g-good: #74c796; --g-good-bg: #1c3024; --g-easy: #86b3e8; --g-easy-bg: #1c2838;
    --new: #3987e5; --learn: #d95926; --review: #199e70;
    --q1: #1c5cab; --q2: #3987e5; --q3: #9ec5f4;
    --h1: #104281; --h2: #1c5cab; --h3: #3987e5; --h4: #86b6ef;
    --shadow-sm: 0 1px 2px rgba(0,0,0,.35);
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 32px rgba(0,0,0,.35);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #131210; --side: #181715; --surface: #1c1a17; --sunk: #25231f; --raise: #23211d;
  --ink: #eeeae3; --ink-2: #c3bdb2; --muted: #9a9489; --faint: #6d675e;
  --line: #2f2c27; --grid: #2a2824; --axis: #3d3a34;
  --accent: #5cc4a6; --accent-ink: #0c1a15; --accent-soft: #1b2c26;
  --danger: #e58670; --danger-soft: #3a211b;
  --g-again: #f0947f; --g-again-bg: #3a221c; --g-hard: #e2b35f; --g-hard-bg: #362c19;
  --g-good: #74c796; --g-good-bg: #1c3024; --g-easy: #86b3e8; --g-easy-bg: #1c2838;
  --new: #3987e5; --learn: #d95926; --review: #199e70;
  --q1: #1c5cab; --q2: #3987e5; --q3: #9ec5f4;
  --h1: #104281; --h2: #1c5cab; --h3: #3987e5; --h4: #86b6ef;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.35);
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 10px 32px rgba(0,0,0,.35);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { background: var(--bg); color: var(--ink); font: 15px/1.5 var(--ui); -webkit-font-smoothing: antialiased;
  display: grid; grid-template-columns: 224px minmax(0, 1fr); overflow: hidden; }
button { font: inherit; color: inherit; cursor: pointer; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, [tabindex]:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }
h1, h2, h3 { margin: 0; }
kbd { font: 500 11px/1 var(--ui); padding: 3px 5px; border-radius: 5px; border: 1px solid currentColor; opacity: .5; }
.ar { font-family: var(--ar); direction: rtl; unicode-bidi: isolate; }
.muted { color: var(--muted); }
.num { font-variant-numeric: tabular-nums; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Sidebar / tab bar ---------- */
.sidebar { background: var(--side); border-right: 1px solid var(--line); display: flex; flex-direction: column; padding: 18px 12px 14px; gap: 2px; overflow: auto; }
.brand { display: flex; align-items: baseline; gap: 8px; padding: 4px 10px 18px; }
.brand .ar { font-size: 24px; color: var(--accent); font-weight: 600; line-height: 1; }
.brand b { font: 600 17px/1 var(--display); }
.nav { display: flex; align-items: center; gap: 11px; border: 0; background: none; padding: 8px 10px; border-radius: 9px;
  color: var(--ink-2); font-size: 14px; font-weight: 500; text-align: left; width: 100%; }
.nav svg { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; opacity: .8; }
.nav:hover { background: color-mix(in srgb, var(--ink) 5%, transparent); }
.nav[aria-current="page"] { background: var(--raise); color: var(--ink); box-shadow: var(--shadow-sm); }
.nav[aria-current="page"] svg { opacity: 1; color: var(--accent); }
.nav .badge-count { margin-left: auto; font-size: 12px; font-weight: 600; color: var(--muted); }
.side-foot { margin-top: auto; padding: 14px 10px 0; font-size: 12px; color: var(--muted); display: grid; gap: 4px; }
.side-foot b { color: var(--ink-2); font-weight: 600; }
.streak-pill { display: inline-flex; align-items: center; gap: 6px; }

/* ---------- Views ---------- */
.view { overflow: auto; height: 100vh; scroll-behavior: smooth; }
.page { max-width: 980px; margin: 0 auto; padding: 34px 36px 60px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.page-head h1 { font: 600 30px/1.15 var(--display); letter-spacing: -.01em; }
.page-head p { margin: 6px 0 0; color: var(--muted); }
.section-title { font: 600 12px/1 var(--ui); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 30px 0 12px; }

.panel { background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); padding: 22px 24px; }
.panel + .panel { margin-top: 16px; }
.panel h2 { font: 600 16px/1.3 var(--ui); }
.panel .sub { color: var(--muted); font-size: 13px; margin-top: 2px; }
.panel-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.grid-2 > .panel + .panel { margin-top: 0; }

/* Buttons & controls */
.btn { border: 0; border-radius: 12px; padding: 11px 20px; font-weight: 600; font-size: 15px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; transition: transform .08s, background .15s; }
.btn:active { transform: scale(.98); }
.btn.primary { background: var(--accent); color: var(--accent-ink); box-shadow: var(--shadow-sm); }
.btn.primary:hover { background: color-mix(in srgb, var(--accent) 88%, var(--ink)); }
.btn.primary kbd { border-color: currentColor; }
.btn.primary:disabled { opacity: .45; cursor: default; }
.btn.primary:disabled kbd { display: none; }
.btn.ghost { background: var(--sunk); color: var(--ink); }
.btn.ghost:hover { background: color-mix(in srgb, var(--sunk) 80%, var(--ink) 8%); }
.btn.danger { background: var(--danger-soft); color: var(--danger); }
.btn.small { padding: 7px 13px; font-size: 13px; border-radius: 10px; }
.btn.big { padding: 15px 30px; font-size: 16px; border-radius: 14px; }
.primary.danger { background: var(--danger); color: #fff; }

.seg { display: inline-flex; background: var(--sunk); border-radius: 10px; padding: 3px; gap: 2px; }
.seg button { border: 0; background: none; padding: 6px 13px; border-radius: 8px; color: var(--muted); font-size: 13px; font-weight: 500; white-space: nowrap; }
.seg button[aria-pressed="true"] { background: var(--raise); color: var(--ink); box-shadow: var(--shadow-sm); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { border: 1px solid var(--line); background: none; padding: 6px 13px; border-radius: 99px; font-size: 13px; color: var(--ink-2); display: inline-flex; gap: 6px; align-items: center; }
.chip[aria-pressed="true"] { background: var(--accent-soft); border-color: transparent; color: var(--accent); font-weight: 600; }
.chip small { color: var(--muted); font-weight: 400; }
input[type="search"], input[type="text"], textarea { width: 100%; border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  border-radius: 12px; padding: 11px 14px; font: inherit; outline: none; }
input[type="search"]:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 70px; font-size: 14px; }

/* Play buttons */
.plays { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.play { border: 1px solid var(--line); background: var(--surface); border-radius: 99px; padding: 7px 15px 7px 12px; font-size: 13px; font-weight: 500;
  color: var(--ink-2); display: inline-flex; align-items: center; gap: 7px; transition: background .15s, color .15s, border-color .15s; }
.play svg { width: 12px; height: 12px; fill: currentColor; flex: none; }
.play:hover { color: var(--accent); border-color: var(--accent); }
.play.playing { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.play.slow svg { width: 16px; }
.play.icon { padding: 7px 10px; }

/* ---------- Today ---------- */
.hello { display: flex; align-items: center; gap: 14px; margin-bottom: 6px; }
.hello .ar { font-size: 34px; color: var(--accent); line-height: 1.3; }
.hello small { color: var(--muted); font-style: italic; font-family: var(--display); font-size: 15px; }
.today { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); gap: 16px; }
.session { display: flex; flex-direction: column; gap: 22px; }
.session .big-count { font: 600 56px/1 var(--ui); letter-spacing: -.02em; }
.session .big-count small { font: 500 15px/1.3 var(--ui); color: var(--muted); letter-spacing: 0; display: block; margin-top: 8px; }
.qcounts { display: flex; gap: 22px; flex-wrap: wrap; }
.qcount { display: grid; gap: 2px; }
.qcount b { font: 600 22px/1.1 var(--ui); }
.qcount span { display: flex; align-items: center; gap: 7px; font-size: 13px; color: var(--muted); }
.key { width: 9px; height: 9px; border-radius: 3px; display: inline-block; flex: none; }
.key.new { background: var(--new); } .key.learn { background: var(--learn); } .key.review { background: var(--review); }
.key.q0 { background: var(--sunk); box-shadow: inset 0 0 0 1px var(--line); } .key.q1 { background: var(--q1); } .key.q2 { background: var(--q2); } .key.q3 { background: var(--q3); }
.session-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.done-note { display: flex; align-items: center; gap: 10px; color: var(--ink-2); font-size: 14px; }
.done-note .ar { font-size: 22px; color: var(--accent); }

.ring-wrap { display: flex; align-items: center; gap: 20px; }
.ring { width: 118px; height: 118px; flex: none; }
.ring circle { fill: none; stroke-width: 10; }
.ring .track { stroke: var(--sunk); }
.ring .fill { stroke: var(--accent); stroke-linecap: round; transition: stroke-dashoffset .6s ease; }
.ring text { font: 600 22px var(--ui); fill: var(--ink); }
.ring .ring-sub { font: 500 11px var(--ui); fill: var(--muted); }
.facts { display: grid; gap: 12px; }
.fact b { display: block; font: 600 20px/1.1 var(--ui); }
.fact span { font-size: 13px; color: var(--muted); }

.week { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 18px; }
.week div { display: grid; justify-items: center; gap: 6px; font-size: 11px; color: var(--muted); }
.week i { width: 100%; max-width: 34px; aspect-ratio: 1; border-radius: 9px; background: var(--sunk); display: grid; place-items: center; font-style: normal; font-size: 11px; color: var(--muted); }
.week i.on { background: var(--accent); color: var(--accent-ink); font-weight: 600; }
.week i.today { box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--accent); }

.levels { display: grid; gap: 14px; }
.level-row { display: grid; grid-template-columns: 150px minmax(0, 1fr) 70px; gap: 14px; align-items: center; font-size: 14px; }
.level-row .name b { font-weight: 600; margin-right: 6px; }
.level-row .name span { color: var(--muted); }
.level-row .pct { text-align: right; color: var(--ink-2); font-variant-numeric: tabular-nums; font-size: 13px; }
.stack { display: flex; height: 10px; border-radius: 99px; overflow: hidden; background: var(--sunk); gap: 2px; }
.stack i { display: block; height: 100%; min-width: 0; }
.stack i:first-child { border-radius: 99px 0 0 99px; }
.legend { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 12px; color: var(--ink-2); margin-top: 16px; }
.legend span { display: inline-flex; align-items: center; gap: 7px; }

.next-themes { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }

/* ---------- Themes ---------- */
.theme-group + .theme-group { margin-top: 28px; }
.theme-group h2 { font: 600 18px/1.2 var(--display); margin-bottom: 12px; display: flex; gap: 10px; align-items: baseline; }
.theme-group h2 small { font: 500 13px var(--ui); color: var(--muted); }
.themes { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; }
.theme { background: var(--surface); border: 0; border-radius: var(--r); box-shadow: var(--shadow-sm); padding: 16px 16px 14px; text-align: left;
  display: grid; gap: 10px; transition: transform .12s, box-shadow .12s; }
.theme:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.theme .t-top { display: flex; justify-content: space-between; gap: 8px; align-items: baseline; }
.theme .t-id { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.theme .t-name { font-weight: 600; font-size: 15px; line-height: 1.3; }
.theme .t-sample { font-family: var(--ar); font-size: 18px; color: var(--ink-2); direction: rtl; text-align: right; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.theme .t-foot { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); }
.theme .stack { height: 6px; }

/* ---------- Study ---------- */
body.studying { grid-template-columns: minmax(0, 1fr); }
body.studying .sidebar { display: none; }
.study { height: 100vh; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; max-width: 880px; margin: 0 auto; padding: 18px 28px 22px; }
.studybar { display: flex; align-items: center; gap: 14px; min-width: 0; }
.studybar > * { min-width: 0; }
.studybar .seg { flex: none; flex-wrap: nowrap; }
.studybar .seg button { padding: 5px 9px; font-size: 13px; line-height: 1.1; }
.icon-btn { border: 0; background: var(--sunk); width: 34px; height: 34px; border-radius: 99px; display: grid; place-items: center; color: var(--ink-2); flex: none; }
.icon-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; }
.icon-btn:hover { background: color-mix(in srgb, var(--sunk) 80%, var(--ink) 10%); }
.icon-btn.on { color: #d49b00; }
.icon-btn.on svg { fill: currentColor; stroke: none; }
.progress { flex: 1; height: 6px; background: var(--sunk); border-radius: 99px; overflow: hidden; }
.progress i { display: block; height: 100%; background: var(--accent); border-radius: 99px; transition: width .35s ease; }
.mini { display: flex; gap: 12px; font-size: 13px; font-variant-numeric: tabular-nums; color: var(--ink-2); }
.mini span { display: inline-flex; align-items: center; gap: 6px; padding-bottom: 2px; border-bottom: 2px solid transparent; }
.mini span.cur { border-color: var(--ink-2); font-weight: 600; color: var(--ink); }
.focus-tag { font-size: 12px; font-weight: 600; background: var(--accent-soft); color: var(--accent); padding: 4px 10px; border-radius: 99px; white-space: nowrap; }

.stage { min-height: 0; overflow: auto; padding: 18px 2px; display: flex; align-items: flex-start; scrollbar-width: none; }
.stage::-webkit-scrollbar { width: 0; height: 0; } /* the thin bar sat on the card's rounded edge */
.card { background: var(--surface); border-radius: 24px; box-shadow: var(--shadow); padding: 26px 34px 30px; width: 100%;
  display: flex; flex-direction: column; min-height: 100%; animation: rise .22s ease-out; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } }
@media (prefers-reduced-motion: reduce) { .card, .details { animation: none; } }
.card-top { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.tag { font-size: 11px; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; padding: 5px 10px; border-radius: 7px; background: var(--sunk); color: var(--muted); }
.tag.type { background: var(--accent-soft); color: var(--accent); }
.card-top .spacer { flex: 1; }
.face { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 28px 0 10px; gap: 4px; }
.word { font-size: clamp(48px, 7vw, 76px); line-height: 1.45; font-weight: 600; }
.word.md { font-size: clamp(38px, 5vw, 52px); }
.translit { font-family: var(--display); font-style: italic; color: var(--muted); font-size: 20px; }
.meaning { font: 600 26px/1.3 var(--display); max-width: 32ch; margin-top: 6px; }
.en-big { font: 600 clamp(28px, 4vw, 40px)/1.2 var(--display); max-width: 24ch; }
.en-small { font: 600 20px/1.3 var(--display); color: var(--muted); margin-bottom: 8px; }
.pos { color: var(--faint); font-size: 13px; margin-top: 10px; letter-spacing: .02em; }
.prompt { color: var(--faint); font-size: 14px; margin-top: 18px; }
.meta { color: var(--muted); font-size: 13px; margin-top: 8px; }
.meta .ar { font-size: 18px; color: var(--ink-2); }
.face .plays { margin-top: 18px; }
.listen-big { width: 112px; height: 112px; border-radius: 99px; border: 0; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; transition: transform .1s; }
.listen-big:hover { transform: scale(1.04); }
.listen-big svg { width: 38px; height: 38px; fill: currentColor; margin-left: 6px; }
.listen-big.playing { box-shadow: 0 0 0 8px color-mix(in srgb, var(--accent) 18%, transparent); }
.sentence { font-size: clamp(26px, 3.6vw, 34px); line-height: 1.9; }
.blank { display: inline-block; min-width: 3.4em; border-bottom: 3px solid var(--accent); margin: 0 .15em; height: 1em; vertical-align: -.1em; }
mark { background: var(--accent-soft); color: var(--accent); border-radius: 6px; padding: 0 .18em; }
.ex-tr { font-family: var(--display); font-style: italic; color: var(--muted); font-size: 16px; }
.ex-en { color: var(--ink); font-size: 16px; margin-top: 2px; }
.hint { color: var(--faint); font-size: 14px; margin-top: 14px; }
.details { border-top: 1px solid var(--line); margin-top: 24px; padding-top: 20px; display: grid; gap: 14px; animation: rise .22s ease-out; }
.ex { text-align: center; display: grid; gap: 2px; }
.ex .ar { font-size: 26px; line-height: 1.8; }
.ex .plays { margin-top: 8px; }
.note { background: var(--sunk); border-radius: 14px; padding: 13px 16px; font-size: 14px; color: var(--ink); line-height: 1.55; }
.note b { display: block; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.note .ar { font-size: 17px; }
.note.mine { background: var(--accent-soft); }
.generic { text-align: center; font-size: 22px; line-height: 1.6; max-width: 40ch; }
.generic img { max-width: 100%; border-radius: 10px; }

/* The drawn ♂ / ♀ — same weight as the play triangle next to them, and on the same line. */
.vx { width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; flex: none; }
.seg .vx { width: 14px; height: 14px; }
.seg button { display: inline-flex; align-items: center; gap: 2px; }
.vx-m { margin-right: -2px; }
.play .vx { opacity: .9; }
.answer-bar { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; padding-top: 4px; position: relative; }
/* The card scrolls behind the answer buttons, so the cut edge has to look like an edge. */
.answer-bar::before { content: ""; position: absolute; left: 0; right: 0; top: -16px; height: 16px; pointer-events: none;
  background: linear-gradient(to bottom, transparent, var(--bg)); }
.answer-bar.reveal { grid-template-columns: 1fr; }
.grade { border: 0; border-radius: 16px; padding: 12px 0 11px; display: grid; justify-items: center; gap: 2px; font-weight: 600; font-size: 15px; transition: transform .08s, filter .15s; }
.grade:hover { filter: brightness(.97); }
.grade:active { transform: scale(.98); }
.grade small { font-weight: 500; font-size: 12px; opacity: .8; font-variant-numeric: tabular-nums; }
.grade kbd { position: absolute; opacity: 0; }
.g1 { background: var(--g-again-bg); color: var(--g-again); } .g2 { background: var(--g-hard-bg); color: var(--g-hard); }
.g3 { background: var(--g-good-bg); color: var(--g-good); } .g4 { background: var(--g-easy-bg); color: var(--g-easy); }
.keys { text-align: center; font-size: 12px; color: var(--faint); margin-top: 12px; }
.keys kbd { margin: 0 2px; }

.done { margin: auto; text-align: center; padding: 40px 20px; max-width: 460px; }
.done .ar { font-size: 56px; color: var(--accent); line-height: 1.4; }
.done h2 { font: 600 28px/1.25 var(--display); margin: 6px 0 10px; }
.done p { color: var(--muted); margin: 0 0 6px; }
.done .row { display: flex; gap: 10px; justify-content: center; margin-top: 24px; flex-wrap: wrap; }
.done-stats { display: flex; justify-content: center; gap: 28px; margin-top: 20px; }
.done-stats b { display: block; font: 600 24px var(--ui); }
.done-stats span { font-size: 12px; color: var(--muted); }

/* ---------- Browse ---------- */
.browse { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 16px; align-items: start; }
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin: 14px 0 12px; align-items: center; }
.list { background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); overflow: hidden; }
.row-item { display: grid; grid-template-columns: 10px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 11px 16px; border: 0; border-top: 1px solid var(--line);
  width: 100%; background: none; text-align: left; }
.row-item:first-child { border-top: 0; }
.row-item:hover { background: color-mix(in srgb, var(--sunk) 55%, transparent); }
.row-item[aria-selected="true"] { background: var(--accent-soft); }
.row-item .en { font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row-item .tr { color: var(--muted); font-size: 12px; font-family: var(--display); font-style: italic; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row-item .ar { font-size: 22px; }
.row-item .star { color: #d49b00; font-size: 12px; margin-left: 4px; }
.dot { width: 9px; height: 9px; border-radius: 3px; background: var(--sunk); box-shadow: inset 0 0 0 1px var(--line); }
.dot.learning { background: var(--learn); box-shadow: none; } .dot.young { background: var(--q2); box-shadow: none; } .dot.mature { background: var(--q3); box-shadow: none; }
.list-foot { padding: 12px 16px; text-align: center; border-top: 1px solid var(--line); }
.detail { position: sticky; top: 20px; }
.detail .word { font-size: 54px; text-align: center; }
.detail .translit, .detail .meaning, .detail .meta { text-align: center; }
.detail .plays { margin: 16px 0 4px; }
.card-states { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 16px; }
.card-state { background: var(--sunk); border-radius: 12px; padding: 10px 12px; font-size: 13px; }
.card-state b { display: block; font-weight: 600; font-size: 13px; }
.card-state span { color: var(--muted); }
.detail-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; justify-content: center; }
.empty { text-align: center; color: var(--muted); padding: 50px 20px; }

/* ---------- Stats ---------- */
.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.kpi { background: var(--surface); border-radius: var(--r); box-shadow: var(--shadow-sm); padding: 16px 18px; }
.kpi .label { font-size: 13px; color: var(--muted); }
.kpi .value { font: 600 30px/1.15 var(--ui); margin-top: 4px; letter-spacing: -.01em; }
.kpi .value small { font-size: 15px; font-weight: 500; color: var(--muted); margin-left: 3px; }
.kpi .delta { font-size: 12px; color: var(--ink-2); margin-top: 2px; }
.hero-kpi { grid-column: span 2; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.hero-kpi .value { font-size: 52px; line-height: 1; }
.spark { width: 140px; height: 46px; flex: none; }
.spark path { fill: none; stroke: var(--faint); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.spark circle { fill: var(--accent); stroke: var(--surface); stroke-width: 2; }

.chart { position: relative; }
.chart svg { display: block; width: 100%; overflow: visible; }
.chart .gridline { stroke: var(--grid); stroke-width: 1; shape-rendering: crispEdges; }
.chart .baseline { stroke: var(--axis); stroke-width: 1; shape-rendering: crispEdges; }
.chart .tick { font: 11px var(--ui); fill: var(--muted); font-variant-numeric: tabular-nums; }
.chart .hit { fill: transparent; cursor: default; }
.chart .hover-band { fill: color-mix(in srgb, var(--ink) 5%, transparent); }
.chart .line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .area { opacity: .1; }
.chart .endlabel { font: 600 12px var(--ui); fill: var(--ink); }
.chart .crosshair { stroke: var(--axis); stroke-width: 1; }
.chart .marker { stroke: var(--surface); stroke-width: 2; }
.tooltip { position: absolute; pointer-events: none; background: var(--raise); border-radius: 10px; box-shadow: var(--shadow); padding: 8px 11px; font-size: 12px;
  white-space: nowrap; z-index: 3; transform: translate(-50%, calc(-100% - 10px)); border: 1px solid var(--line); }
.tooltip .t-title { color: var(--muted); margin-bottom: 4px; }
.tooltip .t-row { display: flex; align-items: center; gap: 8px; }
.tooltip .t-row b { font-weight: 600; min-width: 2ch; }
.tooltip .t-key { width: 12px; height: 2px; border-radius: 2px; flex: none; }
.table-toggle { margin-top: 12px; font-size: 12px; color: var(--muted); }
.table-toggle summary { cursor: pointer; width: max-content; }
.table-toggle table { width: 100%; border-collapse: collapse; margin-top: 8px; font-variant-numeric: tabular-nums; }
.table-toggle th, .table-toggle td { text-align: right; padding: 4px 8px; border-bottom: 1px solid var(--line); color: var(--ink-2); }
.table-toggle th:first-child, .table-toggle td:first-child { text-align: left; }
.table-wrap { max-height: 220px; overflow: auto; }

.calendar { display: grid; gap: 10px; }
.cal-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.cal-head b { font: 600 17px var(--display); }
.cal-grid { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 6px; }
.cal-dow { font-size: 11px; color: var(--muted); text-align: center; padding-bottom: 2px; }
.cal-day { aspect-ratio: 1; border-radius: 10px; background: var(--sunk); display: grid; align-content: space-between; padding: 6px 7px; font-size: 12px; color: var(--ink-2);
  font-variant-numeric: tabular-nums; position: relative; border: 0; text-align: left; min-height: 42px; }
.cal-day.out { background: none; color: var(--faint); }
.cal-day.future { background: none; box-shadow: inset 0 0 0 1px var(--line); color: var(--faint); }
.cal-day.l1 { background: var(--h1); } .cal-day.l2 { background: var(--h2); } .cal-day.l3 { background: var(--h3); color: #fff; } .cal-day.l4 { background: var(--h4); color: #fff; }
:root[data-theme="dark"] .cal-day.l1, :root[data-theme="dark"] .cal-day.l2 { color: #fff; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .cal-day.l1, :root:not([data-theme="light"]) .cal-day.l2 { color: #fff; } :root:not([data-theme="light"]) .cal-day.l4 { color: #0d1a2b; } }
:root[data-theme="dark"] .cal-day.l4 { color: #0d1a2b; }
.cal-day.today { box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--accent); }
.cal-day .c { font-size: 11px; font-weight: 600; justify-self: end; opacity: .9; }
.cal-scale { display: flex; align-items: center; gap: 4px; font-size: 11px; color: var(--muted); justify-content: flex-end; }
.cal-scale i { width: 14px; height: 14px; border-radius: 4px; background: var(--sunk); }
.cal-scale i.l1 { background: var(--h1); } .cal-scale i.l2 { background: var(--h2); } .cal-scale i.l3 { background: var(--h3); } .cal-scale i.l4 { background: var(--h4); }
.cal-summary { display: flex; gap: 22px; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
.cal-summary b { color: var(--ink); font-size: 15px; margin-right: 4px; }

.hbars { display: grid; gap: 12px; }
.hbar { display: grid; grid-template-columns: 120px minmax(0, 1fr) 90px; gap: 12px; align-items: center; font-size: 13px; }
.hbar .track { height: 10px; background: var(--sunk); border-radius: 0 4px 4px 0; }
.hbar .track i { display: block; height: 100%; background: var(--new); border-radius: 0 4px 4px 0; }
.hbar .v { text-align: right; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.hard-list { display: grid; gap: 0; }
.hard-row { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 14px; align-items: center; padding: 9px 0; border-top: 1px solid var(--line); font-size: 14px; }
.hard-row:first-child { border-top: 0; }
.hard-row .ar { font-size: 20px; }
.hard-row small { color: var(--muted); }

/* ---------- Settings ---------- */
.setting { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 15px 0; border-top: 1px solid var(--line); }
.setting:first-of-type { border-top: 0; padding-top: 4px; }
.setting label, .setting .lbl { font-weight: 500; }
.setting p { margin: 2px 0 0; color: var(--muted); font-size: 13px; max-width: 46ch; }
.setting .chips, .setting .seg { flex: none; justify-content: flex-end; }
.deck-card { display: flex; gap: 16px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.deck-card b { font-size: 16px; }
.deck-card p { margin: 3px 0 0; color: var(--muted); font-size: 13px; }

/* ---------- Welcome / import ---------- */
.welcome { max-width: 620px; margin: 0 auto; padding: 70px 30px; text-align: center; }
.welcome .ar.big { font-size: 64px; color: var(--accent); line-height: 1.4; }
.welcome h1 { font: 600 34px/1.2 var(--display); margin: 8px 0 12px; }
.welcome p.lead { color: var(--ink-2); font-size: 16px; margin: 0 auto 30px; max-width: 46ch; }
.drop { border: 2px dashed var(--axis); border-radius: 24px; padding: 38px 24px; background: var(--surface); display: grid; justify-items: center; gap: 12px; transition: border-color .15s, background .15s; }
.drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop svg { width: 42px; height: 42px; stroke: var(--accent); fill: none; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.drop p { margin: 0; color: var(--muted); font-size: 14px; }
.privacy { display: flex; gap: 10px; align-items: flex-start; text-align: left; margin: 22px auto 0; max-width: 480px; color: var(--muted); font-size: 13px; }
.privacy svg { width: 18px; height: 18px; flex: none; stroke: var(--accent); fill: none; stroke-width: 1.8; margin-top: 1px; }
.importing { display: grid; gap: 12px; text-align: left; }
.importing .progress { height: 8px; }
.importing .stage-label { font-weight: 600; }
.result { text-align: left; display: grid; gap: 14px; }
.result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.result-grid div { background: var(--sunk); border-radius: 14px; padding: 14px; }
.result-grid b { display: block; font: 600 24px var(--ui); }
.result-grid span { font-size: 12px; color: var(--muted); }
.problems { font-size: 13px; color: var(--ink-2); max-height: 160px; overflow: auto; background: var(--sunk); border-radius: 12px; padding: 10px 14px; }
.problems li { margin: 2px 0; }

/* ---------- Modal & toast ---------- */
.modal { position: fixed; inset: 0; background: rgba(10, 8, 5, .35); display: grid; place-items: center; z-index: 20; padding: 20px; animation: fade .15s; }
@keyframes fade { from { opacity: 0; } }
.sheet { background: var(--raise); border-radius: 18px; box-shadow: var(--shadow); padding: 22px 24px 18px; max-width: 420px; width: 100%; }
.sheet h3 { font-size: 17px; margin-bottom: 6px; }
.sheet p { color: var(--ink-2); margin: 0 0 6px; font-size: 14px; }
.sheet-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 18px; }
.sheet-actions button { border: 0; border-radius: 10px; padding: 9px 16px; font-weight: 600; }
.sheet-actions .ghost { background: var(--sunk); }
.sheet-actions .primary { background: var(--accent); color: var(--accent-ink); }
.sheet-actions .primary.danger { background: var(--danger); color: #fff; }
#toast { position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 20px); background: var(--ink); color: var(--bg); padding: 10px 18px; border-radius: 12px;
  font-size: 14px; opacity: 0; transition: opacity .2s, transform .2s; pointer-events: none; z-index: 30; }
#toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Narrow windows & phones ---------- */
/* A word on a narrow screen opens over the list, not at the bottom of the page. */
.detail-scrim { position: fixed; inset: 0; background: rgba(10, 8, 5, .45); z-index: 30; animation: fade .15s; }
.detail-close { display: none; position: absolute; top: 10px; right: 10px; z-index: 2; }
@keyframes sheetUp { from { transform: translateY(14px); opacity: .6; } }

@media (max-width: 900px) {
  .today, .browse, .grid-2 { grid-template-columns: minmax(0, 1fr); }
  .detail { position: static; }
  body:not(.detail-open) .detail { display: none; }
  body.detail-open .detail {
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 31; max-height: 88dvh; overflow: auto;
    background: var(--bg); border-radius: 20px 20px 0 0; box-shadow: 0 -12px 40px rgba(0, 0, 0, .35);
    padding: 6px 12px calc(14px + env(safe-area-inset-bottom)); animation: sheetUp .2s ease-out;
    scrollbar-width: none;
  }
  body.detail-open .detail::-webkit-scrollbar { width: 0; }
  body.detail-open .detail .panel { position: relative; padding-top: 26px; }
  body.detail-open .detail-close { display: grid; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 720px) {
  body { grid-template-columns: minmax(0, 1fr); grid-template-rows: minmax(0, 1fr) auto; }
  .sidebar { grid-row: 2; flex-direction: row; border-right: 0; border-top: 1px solid var(--line); padding: 6px 6px calc(6px + env(safe-area-inset-bottom)); gap: 0; overflow: visible; }
  .brand, .side-foot { display: none; }
  .nav { flex-direction: column; gap: 3px; font-size: 11px; padding: 6px 2px; justify-content: center; }
  .nav[aria-current="page"] { background: none; box-shadow: none; color: var(--accent); }
  .nav .badge-count { display: none; }
  .view { height: auto; }
  body.studying { grid-template-rows: minmax(0, 1fr); }
  .page { padding: 22px 16px 40px; }
  .page-head h1 { font-size: 26px; }
  .panel { padding: 18px 16px; border-radius: 18px; }
  .study { padding: calc(8px + env(safe-area-inset-top)) 12px calc(10px + env(safe-area-inset-bottom)); height: 100dvh; gap: 2px; }
  /* The last thing on a card — usually the note about the Gulf — was ending right where the answer
     buttons and their fade begin, so it read as cut off. The card now keeps room below it. */
  .card { padding: 14px 15px 34px; border-radius: 20px; }
  /* A phone screen with Safari's own bars on it has about 500px to study in: the labels along the top
     of the card said what the card already shows, so they go, and the word itself comes down a size. */
  .card-top { display: none; }
  /* The front of a card is short and the back is long. The card keeps filling the screen, but its
     content sits in the middle — "safe" so that a long back still starts at the top and scrolls
     instead of disappearing above it. */
  /* The card must grow with what is on it. (align-items: stretch here pinned it to the height of the
     screen instead, so a long note hung out below the card's own background.) */
  .card { min-height: 100%; justify-content: safe center; }
  .stage { align-items: flex-start; }
  .stage { padding: 8px 0 4px; }
  .word { font-size: clamp(40px, 13vw, 58px); line-height: 1.35; }
  .ex .ar { font-size: 22px; line-height: 1.7; }
  .prompt { font-size: 14px; }
  .listen-big { width: 88px; height: 88px; }
  .listen-big svg { width: 30px; height: 30px; }
  .answer-bar { gap: 7px; }
  .studybar { gap: 8px; }
  /* A theme name in the bar pushed the voice buttons — and with them the whole screen — off the
     right edge, which cut "Easy" in half. On a phone the name is already on the card. */
  .focus-tag { display: none; }
  .study { overflow: hidden; }
  .studybar .seg button { padding: 5px 7px; font-size: 12px; }
  .studybar .mini { gap: 8px; font-size: 12px; }
  .grade { padding: 11px 0 10px; font-size: 14px; border-radius: 14px; }
  .keys, .mini .lbl, .card-top .theme-tag { display: none; }
  .level-row { grid-template-columns: minmax(0, 1fr) 60px; }
  .level-row .stack { grid-column: 1 / -1; grid-row: 2; }
  .hero-kpi { grid-column: span 2; }
  .hero-kpi .value { font-size: 42px; }
  .setting { flex-direction: column; align-items: flex-start; }
  .setting .chips, .setting .seg { justify-content: flex-start; }
  .hbar { grid-template-columns: 90px minmax(0, 1fr) 70px; }
  .filters { flex-direction: column; align-items: stretch; }
  .seg { flex-wrap: wrap; }
  .seg button { flex: 1 0 auto; }
  .result-grid { grid-template-columns: 1fr 1fr; }
  .welcome { padding: 40px 18px; }
}

/* Before a deck is imported there is nothing to navigate */
body.no-deck { grid-template-columns: minmax(0, 1fr); }
body.no-deck .sidebar { display: none; }
@media (max-width: 720px) { body.no-deck { grid-template-rows: minmax(0, 1fr); } }