/* ==========================================================================
   Kufa English School — design system
   Every level has its own palette, drawn from one natural landscape.
   ========================================================================== */

/* ---------- Typefaces (local files are added by the setup script; system
   fonts stand in until then) ---------- */
:root {
  --f-display-en: "Literata", "Sitka Heading", "Sitka Text", Georgia, "Times New Roman", serif;
  --f-body-en: "Atkinson Hyperlegible", "Segoe UI", "Segoe UI Variable Text", system-ui, sans-serif;
  --f-display-ar: "Noto Kufi Arabic", "Segoe UI", Tahoma, sans-serif;
  --f-body-ar: "IBM Plex Sans Arabic", "Segoe UI", Tahoma, "Arial", sans-serif;

  --f-ui: var(--f-body-en);
  --f-head: var(--f-display-en);

  /* Type scale (classic 12/14/16/18/21/24/36/48/60) */
  --t-xs: 0.75rem;
  --t-sm: 0.875rem;
  --t-md: 1rem;
  --t-lg: 1.125rem;
  --t-xl: 1.3125rem;
  --t-2xl: 1.5rem;
  --t-3xl: 2.25rem;
  --t-4xl: 3rem;
  --t-5xl: 3.75rem;

  --r-lg: 18px;
  --r-md: 12px;
  --r-sm: 8px;
  --rail: 248px;
  --gap: 24px;
  --ease: cubic-bezier(.2, .7, .2, 1);

  --ok: #3E7D4F;
  --warn: #9A6A0E;
  --bad: #A53C33;
  --ok-bg: color-mix(in oklab, var(--ok) 12%, var(--surface));
  --bad-bg: color-mix(in oklab, var(--bad) 10%, var(--surface));
  --warn-bg: color-mix(in oklab, var(--warn) 12%, var(--surface));
  color-scheme: light;
}

html[lang="ar"] {
  --f-ui: var(--f-body-ar);
  --f-head: var(--f-display-ar);
}

/* ---------- Palettes ---------- */
/* 1 Beginner — palms of the Euphrates */
[data-pal="beginner"] {
  --bg: #EEF1EC; --bg-2: #E4E9E3; --surface: #F8F9F5; --ink: #1D2621; --ink-2: #4A564F; --ink-3: #737F78;
  --line: #D5DBD3; --primary: #2E5141; --primary-2: #DCE6DF; --on-primary: #F3F6F1;
  --accent: #8A4B22; --on-accent: #FBF5EE;
  --sky1: #E3EBE6; --sky2: #F0E5CC; --l1: #BCC9C1; --l2: #7F9A8C; --l3: #2E5141; --l4: #5E8293; --l5: #D9C9A6;
}
/* 2 Elementary — forest and stone */
[data-pal="elementary"] {
  --bg: #EDEEE9; --bg-2: #E3E5DD; --surface: #F7F7F3; --ink: #22251F; --ink-2: #4F5449; --ink-3: #777C70;
  --line: #D6D8CF; --primary: #4A5D32; --primary-2: #E1E6D6; --on-primary: #F5F7EF;
  --accent: #A4532E; --on-accent: #FFF7F2;
  --sky1: #E2E7DE; --sky2: #EEECE2; --l1: #C3CABB; --l2: #8C9A7A; --l3: #4A5D32; --l4: #7D827A; --l5: #5C6650;
}
/* 3 Pre-Intermediate — coast at dawn */
[data-pal="pre-intermediate"] {
  --bg: #ECF1F1; --bg-2: #E1E9EA; --surface: #F7FAF9; --ink: #18282D; --ink-2: #455A60; --ink-3: #6E8186;
  --line: #D2DDDE; --primary: #1D4D5C; --primary-2: #D9E7EA; --on-primary: #F1F7F8;
  --accent: #B45E49; --on-accent: #FFF6F3;
  --sky1: #F1E2D7; --sky2: #E2D0C9; --l1: #A9C1C6; --l2: #5F7F55; --l3: #1D4D5C; --l4: #3F6E7B; --l5: #E6DAC4;
}
/* 4 Intermediate — lavender fields */
[data-pal="intermediate"] {
  --bg: #EFEEF3; --bg-2: #E5E3EC; --surface: #F9F8FB; --ink: #23202E; --ink-2: #514C62; --ink-3: #7B758C;
  --line: #DAD7E3; --primary: #5A4F86; --primary-2: #E3E0EE; --on-primary: #F6F4FB;
  --accent: #A9672A; --on-accent: #FFF7EE;
  --sky1: #F0E4D0; --sky2: #E5D8C8; --l1: #C7C1D8; --l2: #6E7444; --l3: #8678B4; --l4: #5A4F86; --l5: #A99A6A;
}
/* 5 Intermediate Plus — autumn woods */
[data-pal="intermediate-plus"] {
  --bg: #F1EEEA; --bg-2: #E8E2DB; --surface: #FAF8F5; --ink: #2A211C; --ink-2: #5A4C42; --ink-3: #85776C;
  --line: #E0D8CF; --primary: #873A25; --primary-2: #F0DFD8; --on-primary: #FCF5F2;
  --accent: #9C7016; --on-accent: #FFF9EC;
  --sky1: #EFE4D2; --sky2: #EAD5BC; --l1: #D8C3A8; --l2: #C08A3A; --l3: #873A25; --l4: #4E3F33; --l5: #6B5240;
}
/* 6 Upper-Intermediate — alpine lake */
[data-pal="upper-intermediate"] {
  --bg: #EBF1F0; --bg-2: #E0E9E8; --surface: #F7FAFA; --ink: #172624; --ink-2: #43585A; --ink-3: #6D8081;
  --line: #D1DDDC; --primary: #2A6266; --primary-2: #D6E8E8; --on-primary: #EFF8F8;
  --accent: #AF5C50; --on-accent: #FFF5F3;
  --sky1: #F0DBD4; --sky2: #E2E8EE; --l1: #C9D3DA; --l2: #8EA2A8; --l3: #2A4436; --l4: #4F8A8C; --l5: #2A6266;
}
/* 7 Advanced — desert at dusk */
[data-pal="advanced"] {
  --bg: #F2EEEA; --bg-2: #E9E2DC; --surface: #FBF9F6; --ink: #2A2026; --ink-2: #5A4A52; --ink-3: #85757C;
  --line: #E3D9D2; --primary: #8F4426; --primary-2: #F1DFD6; --on-primary: #FCF4F0;
  --accent: #4B3B5C; --on-accent: #F4F0F8;
  --sky1: #AFC0CE; --sky2: #E8C7A6; --l1: #D9B18A; --l2: #C7976A; --l3: #9D5A35; --l4: #6C3D2A; --l5: #463A57;
}
/* 8 Advanced Plus — northern night */
[data-pal="advanced-plus"] {
  --bg: #ECEFF3; --bg-2: #E1E6EC; --surface: #F8F9FB; --ink: #18202B; --ink-2: #455163; --ink-3: #6E7A8D;
  --line: #D5DBE3; --primary: #1F3150; --primary-2: #DCE3EE; --on-primary: #F2F5FA;
  --accent: #2B7F5E; --on-accent: #F1FAF6;
  --sky1: #1B2C49; --sky2: #2E4A6E; --l1: #3F8F6E; --l2: #7BC4A5; --l3: #2A3A55; --l4: #18263B; --l5: #DDE3EB;
}
/* 9 Supporting books — olive grove */
[data-pal="general"] {
  --bg: #EFF0EB; --bg-2: #E5E7DF; --surface: #F9FAF6; --ink: #23251E; --ink-2: #52564A; --ink-3: #7B7F72;
  --line: #DADCD2; --primary: #555D3A; --primary-2: #E2E5D6; --on-primary: #F6F7F0;
  --accent: #7A5636; --on-accent: #FBF5EF;
  --sky1: #ECEEE7; --sky2: #E7E3D3; --l1: #CBD0C2; --l2: #A9B0A0; --l3: #555D3A; --l4: #7A5C43; --l5: #C9B994;
}

/* ---------- Dark variants ---------- */
:root[data-theme="dark"] { color-scheme: dark; --ok: #7CC28E; --warn: #E0B04F; --bad: #E2867C; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { color-scheme: dark; --ok: #7CC28E; --warn: #E0B04F; --bad: #E2867C; }
}

/* Dark palette values are written once and applied through two selectors:
   explicit dark theme, or system dark when no theme is forced. */
:root[data-theme="dark"] [data-pal="beginner"], :root[data-theme="dark"][data-pal="beginner"] {
  --bg: #121915; --bg-2: #0E1411; --surface: #18211C; --ink: #E4E9E4; --ink-2: #AAB6AE; --ink-3: #85928A;
  --line: #2A362F; --primary: #8DB5A1; --primary-2: #22332B; --on-primary: #0F1712; --accent: #D39462; --on-accent: #1A0F07;
  --sky1: #17221D; --sky2: #2A2A22; --l1: #25332C; --l2: #2F4439; --l3: #1B2F25; --l4: #2F4A57; --l5: #3A3528;
}
:root[data-theme="dark"] [data-pal="elementary"], :root[data-theme="dark"][data-pal="elementary"] {
  --bg: #141712; --bg-2: #10120E; --surface: #1B1F18; --ink: #E5E7E0; --ink-2: #ADB3A5; --ink-3: #888E80;
  --line: #2D3228; --primary: #A7BC86; --primary-2: #283120; --on-primary: #12160E; --accent: #D98A63; --on-accent: #1C0E07;
  --sky1: #181C16; --sky2: #20231C; --l1: #283024; --l2: #334029; --l3: #22301A; --l4: #3D423B; --l5: #2B3125;
}
:root[data-theme="dark"] [data-pal="pre-intermediate"], :root[data-theme="dark"][data-pal="pre-intermediate"] {
  --bg: #0F1A1E; --bg-2: #0B1417; --surface: #152328; --ink: #E2ECEE; --ink-2: #A6BBC0; --ink-3: #7F9499;
  --line: #243A41; --primary: #84B9C8; --primary-2: #1B333B; --on-primary: #0A1418; --accent: #E59A84; --on-accent: #22100B;
  --sky1: #1E2228; --sky2: #2B2427; --l1: #1F3238; --l2: #263A2A; --l3: #12303A; --l4: #1A3E4A; --l5: #37332B;
}
:root[data-theme="dark"] [data-pal="intermediate"], :root[data-theme="dark"][data-pal="intermediate"] {
  --bg: #16141D; --bg-2: #110F17; --surface: #1D1A26; --ink: #E8E5F0; --ink-2: #B0AAC2; --ink-3: #8A849D;
  --line: #2F2B3C; --primary: #B3A8DD; --primary-2: #2A2540; --on-primary: #13101C; --accent: #E3A465; --on-accent: #21140A;
  --sky1: #241F2A; --sky2: #2B2427; --l1: #2B2738; --l2: #2F3220; --l3: #3A3358; --l4: #2A2445; --l5: #3A3424;
}
:root[data-theme="dark"] [data-pal="intermediate-plus"], :root[data-theme="dark"][data-pal="intermediate-plus"] {
  --bg: #1B1512; --bg-2: #15100D; --surface: #231B17; --ink: #EEE6E0; --ink-2: #BCAEA4; --ink-3: #94867C;
  --line: #3A2E27; --primary: #E0937B; --primary-2: #3A221A; --on-primary: #1B0E09; --accent: #E2B652; --on-accent: #201602;
  --sky1: #261D18; --sky2: #2E2219; --l1: #3A2C22; --l2: #4A3420; --l3: #4A2015; --l4: #2C221B; --l5: #33271F;
}
:root[data-theme="dark"] [data-pal="upper-intermediate"], :root[data-theme="dark"][data-pal="upper-intermediate"] {
  --bg: #0F1918; --bg-2: #0B1312; --surface: #152221; --ink: #E1EDEC; --ink-2: #A3BBBB; --ink-3: #7B9292;
  --line: #233837; --primary: #7FC0C2; --primary-2: #193434; --on-primary: #091515; --accent: #E39486; --on-accent: #200E0B;
  --sky1: #221D24; --sky2: #1A2128; --l1: #2A333A; --l2: #22302F; --l3: #132519; --l4: #1B3A3B; --l5: #133234;
}
:root[data-theme="dark"] [data-pal="advanced"], :root[data-theme="dark"][data-pal="advanced"] {
  --bg: #1A1417; --bg-2: #140F12; --surface: #221A1E; --ink: #F0E7EA; --ink-2: #BEABB2; --ink-3: #968489;
  --line: #3A2D32; --primary: #E39A76; --primary-2: #3D2219; --on-primary: #1E0F08; --accent: #B3A0CC; --on-accent: #18121F;
  --sky1: #1E2230; --sky2: #3A2A2A; --l1: #4A3426; --l2: #5A3B26; --l3: #4A2A1A; --l4: #33201A; --l5: #2A2233;
}
:root[data-theme="dark"] [data-pal="advanced-plus"], :root[data-theme="dark"][data-pal="advanced-plus"] {
  --bg: #0E131B; --bg-2: #0A0E15; --surface: #141B26; --ink: #E3E8F0; --ink-2: #A5B0C2; --ink-3: #7D899C;
  --line: #243044; --primary: #9DB4DA; --primary-2: #1C2840; --on-primary: #0B111C; --accent: #5CC497; --on-accent: #06160F;
  --sky1: #0B1220; --sky2: #15233A; --l1: #2E7D5E; --l2: #4FA37D; --l3: #1A2840; --l4: #0E1828; --l5: #2A3344;
}
:root[data-theme="dark"] [data-pal="general"], :root[data-theme="dark"][data-pal="general"] {
  --bg: #151711; --bg-2: #11130D; --surface: #1C1F17; --ink: #E6E8DF; --ink-2: #AEB2A3; --ink-3: #888D7E;
  --line: #2F3328; --primary: #B5BE8E; --primary-2: #2A2F1D; --on-primary: #12140C; --accent: #CFA27A; --on-accent: #1E130A;
  --sky1: #191C15; --sky2: #22231A; --l1: #2A2F24; --l2: #3A4033; --l3: #2A301B; --l4: #33271C; --l5: #3A3626;
}
/* System-dark mirror of the block above (kept in sync by hand) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) [data-pal="beginner"], :root:not([data-theme="light"])[data-pal="beginner"] {
    --bg: #121915; --bg-2: #0E1411; --surface: #18211C; --ink: #E4E9E4; --ink-2: #AAB6AE; --ink-3: #85928A;
    --line: #2A362F; --primary: #8DB5A1; --primary-2: #22332B; --on-primary: #0F1712; --accent: #D39462; --on-accent: #1A0F07;
    --sky1: #17221D; --sky2: #2A2A22; --l1: #25332C; --l2: #2F4439; --l3: #1B2F25; --l4: #2F4A57; --l5: #3A3528;
  }
  :root:not([data-theme="light"]) [data-pal="elementary"], :root:not([data-theme="light"])[data-pal="elementary"] {
    --bg: #141712; --bg-2: #10120E; --surface: #1B1F18; --ink: #E5E7E0; --ink-2: #ADB3A5; --ink-3: #888E80;
    --line: #2D3228; --primary: #A7BC86; --primary-2: #283120; --on-primary: #12160E; --accent: #D98A63; --on-accent: #1C0E07;
    --sky1: #181C16; --sky2: #20231C; --l1: #283024; --l2: #334029; --l3: #22301A; --l4: #3D423B; --l5: #2B3125;
  }
  :root:not([data-theme="light"]) [data-pal="pre-intermediate"], :root:not([data-theme="light"])[data-pal="pre-intermediate"] {
    --bg: #0F1A1E; --bg-2: #0B1417; --surface: #152328; --ink: #E2ECEE; --ink-2: #A6BBC0; --ink-3: #7F9499;
    --line: #243A41; --primary: #84B9C8; --primary-2: #1B333B; --on-primary: #0A1418; --accent: #E59A84; --on-accent: #22100B;
    --sky1: #1E2228; --sky2: #2B2427; --l1: #1F3238; --l2: #263A2A; --l3: #12303A; --l4: #1A3E4A; --l5: #37332B;
  }
  :root:not([data-theme="light"]) [data-pal="intermediate"], :root:not([data-theme="light"])[data-pal="intermediate"] {
    --bg: #16141D; --bg-2: #110F17; --surface: #1D1A26; --ink: #E8E5F0; --ink-2: #B0AAC2; --ink-3: #8A849D;
    --line: #2F2B3C; --primary: #B3A8DD; --primary-2: #2A2540; --on-primary: #13101C; --accent: #E3A465; --on-accent: #21140A;
    --sky1: #241F2A; --sky2: #2B2427; --l1: #2B2738; --l2: #2F3220; --l3: #3A3358; --l4: #2A2445; --l5: #3A3424;
  }
  :root:not([data-theme="light"]) [data-pal="intermediate-plus"], :root:not([data-theme="light"])[data-pal="intermediate-plus"] {
    --bg: #1B1512; --bg-2: #15100D; --surface: #231B17; --ink: #EEE6E0; --ink-2: #BCAEA4; --ink-3: #94867C;
    --line: #3A2E27; --primary: #E0937B; --primary-2: #3A221A; --on-primary: #1B0E09; --accent: #E2B652; --on-accent: #201602;
    --sky1: #261D18; --sky2: #2E2219; --l1: #3A2C22; --l2: #4A3420; --l3: #4A2015; --l4: #2C221B; --l5: #33271F;
  }
  :root:not([data-theme="light"]) [data-pal="upper-intermediate"], :root:not([data-theme="light"])[data-pal="upper-intermediate"] {
    --bg: #0F1918; --bg-2: #0B1312; --surface: #152221; --ink: #E1EDEC; --ink-2: #A3BBBB; --ink-3: #7B9292;
    --line: #233837; --primary: #7FC0C2; --primary-2: #193434; --on-primary: #091515; --accent: #E39486; --on-accent: #200E0B;
    --sky1: #221D24; --sky2: #1A2128; --l1: #2A333A; --l2: #22302F; --l3: #132519; --l4: #1B3A3B; --l5: #133234;
  }
  :root:not([data-theme="light"]) [data-pal="advanced"], :root:not([data-theme="light"])[data-pal="advanced"] {
    --bg: #1A1417; --bg-2: #140F12; --surface: #221A1E; --ink: #F0E7EA; --ink-2: #BEABB2; --ink-3: #968489;
    --line: #3A2D32; --primary: #E39A76; --primary-2: #3D2219; --on-primary: #1E0F08; --accent: #B3A0CC; --on-accent: #18121F;
    --sky1: #1E2230; --sky2: #3A2A2A; --l1: #4A3426; --l2: #5A3B26; --l3: #4A2A1A; --l4: #33201A; --l5: #2A2233;
  }
  :root:not([data-theme="light"]) [data-pal="advanced-plus"], :root:not([data-theme="light"])[data-pal="advanced-plus"] {
    --bg: #0E131B; --bg-2: #0A0E15; --surface: #141B26; --ink: #E3E8F0; --ink-2: #A5B0C2; --ink-3: #7D899C;
    --line: #243044; --primary: #9DB4DA; --primary-2: #1C2840; --on-primary: #0B111C; --accent: #5CC497; --on-accent: #06160F;
    --sky1: #0B1220; --sky2: #15233A; --l1: #2E7D5E; --l2: #4FA37D; --l3: #1A2840; --l4: #0E1828; --l5: #2A3344;
  }
  :root:not([data-theme="light"]) [data-pal="general"], :root:not([data-theme="light"])[data-pal="general"] {
    --bg: #151711; --bg-2: #11130D; --surface: #1C1F17; --ink: #E6E8DF; --ink-2: #AEB2A3; --ink-3: #888D7E;
    --line: #2F3328; --primary: #B5BE8E; --primary-2: #2A2F1D; --on-primary: #12140C; --accent: #CFA27A; --on-accent: #1E130A;
    --sky1: #191C15; --sky2: #22231A; --l1: #2A2F24; --l2: #3A4033; --l3: #2A301B; --l4: #33271C; --l5: #3A3626;
  }
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { font-size: 100%; -webkit-text-size-adjust: 100%; }
html.fs-lg { font-size: 112.5%; }
html.fs-xl { font-size: 125%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-ui);
  font-size: var(--t-md);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color .35s var(--ease), color .35s var(--ease);
}
html[lang="ar"] body { line-height: 1.75; }
img, svg, video { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--primary); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
::selection { background: color-mix(in oklab, var(--accent) 30%, transparent); }
:focus-visible { outline: 2.5px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* English learning content always reads left-to-right in the reading face */
.en { font-family: var(--f-body-en); direction: ltr; unicode-bidi: isolate; }
.en-d { font-family: var(--f-display-en); direction: ltr; unicode-bidi: isolate; }
.ar { font-family: var(--f-body-ar); direction: rtl; unicode-bidi: isolate; }
.ipa { font-family: "Doulos SIL", "Charis SIL", "Segoe UI", "Lucida Sans Unicode", var(--f-body-en); direction: ltr; unicode-bidi: isolate; color: var(--ink-3); }
.num { font-variant-numeric: tabular-nums; }

h1, h2, h3, h4 { font-family: var(--f-head); font-weight: 600; color: var(--ink); margin: 0; line-height: 1.2; letter-spacing: -0.01em; }
html[lang="ar"] h1, html[lang="ar"] h2, html[lang="ar"] h3, html[lang="ar"] h4 { letter-spacing: 0; line-height: 1.5; font-weight: 700; }
h1 { font-size: var(--t-3xl); }
h2 { font-size: var(--t-2xl); }
h3 { font-size: var(--t-xl); }
h4 { font-size: var(--t-lg); }
p { margin: 0 0 .75em; }
.muted { color: var(--ink-2); }
.faint { color: var(--ink-3); }
.small { font-size: var(--t-sm); }
.xsmall { font-size: var(--t-xs); }

/* ---------- Shell ---------- */
.shell { display: grid; grid-template-columns: var(--rail) minmax(0, 1fr); min-height: 100vh; }
.rail {
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; gap: 4px;
  padding: 22px 14px 16px;
  background: var(--bg-2);
  border-inline-end: 1px solid var(--line);
  overflow-y: auto;
}
.brand { display: flex; align-items: center; gap: 12px; padding: 4px 10px 22px; text-decoration: none; color: var(--ink); }
.brand-mark { width: 38px; height: 38px; flex: none; color: var(--primary); transition: transform .5s var(--ease); }
html[dir="ltr"] .brand-mark { transform: scaleX(-1); }
.brand-name { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name b { font-family: var(--f-head); font-weight: 700; font-size: var(--t-lg); }
.brand-name span { font-size: var(--t-xs); color: var(--ink-3); }
html[lang="ar"] .brand-name b { font-size: var(--t-md); line-height: 1.5; }

.nav { display: flex; flex-direction: column; gap: 2px; }
.nav-group-label { font-size: var(--t-xs); color: var(--ink-3); padding: 16px 12px 6px; }
.nav a {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 12px; border-radius: var(--r-sm);
  color: var(--ink-2); text-decoration: none; font-size: var(--t-sm);
  transition: background-color .2s, color .2s;
}
.nav a svg { width: 20px; height: 20px; flex: none; }
.nav a:hover { background: color-mix(in oklab, var(--primary) 7%, transparent); color: var(--ink); }
.nav a[aria-current="page"] { background: var(--primary); color: var(--on-primary); }
.nav a .count { margin-inline-start: auto; font-size: var(--t-xs); background: var(--surface); color: var(--ink-2); border-radius: 99px; padding: 0 7px; min-width: 22px; text-align: center; }
.nav a[aria-current="page"] .count { background: color-mix(in oklab, var(--on-primary) 22%, transparent); color: var(--on-primary); }

.rail-foot { margin-top: auto; display: flex; flex-direction: column; gap: 10px; padding-top: 18px; }
.rail-timer { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: var(--r-md); background: var(--surface); border: 1px solid var(--line); font-size: var(--t-sm); }
.rail-timer svg { width: 18px; height: 18px; color: var(--primary); }
.rail-timer .t { font-variant-numeric: tabular-nums; font-weight: 600; }
.rail-toggles { display: flex; gap: 6px; }
.rail-toggles button { flex: 1; }

.main { min-width: 0; }
.page { max-width: 1240px; margin: 0 auto; padding: 0 40px 80px; }
.page-narrow { max-width: 880px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 40px; padding: 8px 16px;
  border-radius: var(--r-sm); border: 1px solid var(--line);
  background: var(--surface); color: var(--ink);
  font-size: var(--t-sm); font-weight: 600; cursor: pointer; text-decoration: none;
  transition: background-color .18s, border-color .18s, color .18s, transform .12s;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn:hover { border-color: color-mix(in oklab, var(--primary) 45%, var(--line)); }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: color-mix(in oklab, var(--primary) 88%, var(--ink)); border-color: transparent; }
.btn-accent { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn-accent:hover { background: color-mix(in oklab, var(--accent) 88%, var(--ink)); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
.btn-ghost:hover { background: color-mix(in oklab, var(--primary) 8%, transparent); color: var(--ink); }
.btn-lg { min-height: 50px; padding: 12px 22px; font-size: var(--t-md); border-radius: var(--r-md); }
.btn-sm { min-height: 32px; padding: 4px 10px; font-size: var(--t-xs); }
.btn-icon { width: 40px; padding: 0; }
.btn-icon.btn-sm { width: 32px; }
.btn-bad { color: var(--bad); }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; border-radius: 99px;
  background: var(--primary-2); color: var(--ink);
  font-size: var(--t-xs); font-weight: 600; white-space: nowrap;
}
.chip svg { width: 14px; height: 14px; }
.chip-ok { background: var(--ok-bg); color: var(--ok); }
.chip-bad { background: var(--bad-bg); color: var(--bad); }
.chip-warn { background: var(--warn-bg); color: var(--warn); }
.chip-line { background: transparent; border: 1px solid var(--line); color: var(--ink-2); }

/* ---------- Horizon (the level landscape) ---------- */
.horizon {
  position: relative; overflow: hidden;
  margin: 0 -40px 32px; min-height: 300px;
  color: var(--ink);
  isolation: isolate;
}
.horizon svg.land { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -2; }
.horizon::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(to right, color-mix(in oklab, var(--sky1) 78%, transparent) 0%, color-mix(in oklab, var(--sky1) 40%, transparent) 38%, transparent 62%); }
html[dir="rtl"] .horizon svg.land { transform: scaleX(-1); }
html[dir="rtl"] .horizon::before { background: linear-gradient(to left, color-mix(in oklab, var(--sky1) 78%, transparent) 0%, color-mix(in oklab, var(--sky1) 40%, transparent) 38%, transparent 62%); }
.horizon-inner { position: relative; padding: 40px 40px 28px; display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 24px; min-height: 300px; }
.horizon-inner > :last-child:not(:first-child) { align-self: flex-end; }
.horizon .kicker { font-size: var(--t-sm); color: var(--ink-2); margin-bottom: 6px; }
.horizon h1 { font-size: var(--t-4xl); font-weight: 600; max-width: 22ch; text-wrap: balance; }
html[lang="ar"] .horizon h1 { font-size: var(--t-3xl); }
.horizon .lede { margin-top: 8px; color: var(--ink-2); max-width: 52ch; }
.horizon.on-dark { color: #EEF2F7; }
.horizon.on-dark h1, .horizon.on-dark .kicker, .horizon.on-dark .lede { color: #EEF2F7; }
.land .layer { transform-origin: 50% 100%; }
@media (prefers-reduced-motion: no-preference) {
  .horizon.enter .land .layer { animation: rise 1.1s var(--ease) both; }
  .horizon.enter .land .layer:nth-child(2) { animation-delay: .05s; }
  .horizon.enter .land .layer:nth-child(3) { animation-delay: .12s; }
  .horizon.enter .land .layer:nth-child(4) { animation-delay: .2s; }
  .horizon.enter .land .layer:nth-child(5) { animation-delay: .28s; }
  .horizon.enter .land .layer:nth-child(6) { animation-delay: .36s; }
}
@keyframes rise { from { transform: translateY(18px); opacity: 0; } to { transform: none; opacity: 1; } }

.continue-card {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 16px 14px 14px; border-radius: var(--r-lg);
  background: color-mix(in oklab, var(--surface) 88%, transparent);
  backdrop-filter: blur(6px);
  border: 1px solid color-mix(in oklab, var(--line) 80%, transparent);
  text-decoration: none; color: var(--ink); max-width: 420px;
}
.continue-card .code { font-family: var(--f-display-en); font-size: var(--t-3xl); font-weight: 600; color: var(--primary); line-height: 1; min-width: 2.2ch; text-align: center; }
.continue-card .meta { display: flex; flex-direction: column; min-width: 0; }
.continue-card .meta small { color: var(--ink-3); font-size: var(--t-xs); }
.continue-card .meta b { font-family: var(--f-display-en); font-size: var(--t-lg); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.continue-card .btn { margin-inline-start: auto; }

/* ---------- Layout helpers ---------- */
.grid { display: grid; gap: var(--gap); }
.grid-main { grid-template-columns: minmax(0, 1fr) 340px; align-items: start; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.stack { display: flex; flex-direction: column; gap: var(--gap); }
.stack-sm { display: flex; flex-direction: column; gap: 12px; }
.row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.row-between { justify-content: space-between; }
.spacer { flex: 1; }
.mt { margin-top: var(--gap); }
.mt-lg { margin-top: 48px; }

.section { padding: 22px 24px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); }
.section-flush { padding: 0; overflow: hidden; }
.section-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 16px; }
.section-head h2, .section-head h3 { font-size: var(--t-xl); }
.section-head .sub { color: var(--ink-3); font-size: var(--t-sm); }
.section-head .actions { margin-inline-start: auto; display: flex; gap: 8px; }
.plain { background: transparent; border: none; padding: 0; }
.rule { height: 1px; background: var(--line); border: 0; margin: 20px 0; }

/* ---------- Today’s words ---------- */
.words-table { width: 100%; border-collapse: collapse; }
.words-table th { font-size: var(--t-xs); color: var(--ink-3); font-weight: 600; text-align: start; padding: 0 12px 10px; }
.words-table td { padding: 13px 12px; border-top: 1px solid var(--line); vertical-align: middle; }
.words-table tr:hover td { background: color-mix(in oklab, var(--primary) 4%, transparent); }
.w-word { display: flex; align-items: center; gap: 10px; }
.w-word .en { font-size: var(--t-lg); font-weight: 700; }
.w-word .pos { font-size: var(--t-xs); color: var(--ink-3); font-style: italic; }
.w-pron .ar { font-size: var(--t-lg); color: var(--primary); }
.w-pron .ipa { display: block; font-size: var(--t-xs); }
.w-mean .ar { font-size: var(--t-md); }
.w-mean .ex { display: block; font-size: var(--t-xs); color: var(--ink-3); margin-top: 2px; }
.w-act { width: 1%; white-space: nowrap; }
.speak { width: 32px; height: 32px; display: inline-grid; place-items: center; border-radius: 99px; border: 1px solid var(--line); background: var(--surface); color: var(--primary); cursor: pointer; flex: none; }
.speak svg { width: 16px; height: 16px; }
.speak:hover { background: var(--primary); color: var(--on-primary); border-color: var(--primary); }
.speak.playing { background: var(--primary); color: var(--on-primary); }
.known-btn { color: var(--ink-3); }
.known-btn[aria-pressed="true"] { color: var(--ok); }
tr.is-known td { opacity: .45; }

/* ---------- Today panel: goal ring, streak ---------- */
.ring { position: relative; width: 132px; height: 132px; flex: none; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
html[dir="rtl"] .ring svg { transform: rotate(-90deg) scaleY(-1); }
.ring .track { stroke: var(--line); }
.ring .bar { stroke: var(--accent); stroke-linecap: round; transition: stroke-dashoffset .8s var(--ease); }
.ring .label { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.ring .label b { font-family: var(--f-display-en); font-size: var(--t-3xl); line-height: 1; font-weight: 600; }
.ring .label span { font-size: var(--t-xs); color: var(--ink-3); }
.stat-line { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; padding: 10px 0; border-top: 1px solid var(--line); font-size: var(--t-sm); }
.stat-line b { font-family: var(--f-display-en); font-size: var(--t-xl); font-weight: 600; }
.week-dots { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; margin-top: 8px; }
.week-dots i { display: block; height: 30px; border-radius: 6px; background: var(--bg-2); border: 1px solid var(--line); position: relative; }
.week-dots i.lvl1 { background: color-mix(in oklab, var(--primary) 30%, var(--surface)); border-color: transparent; }
.week-dots i.lvl2 { background: color-mix(in oklab, var(--primary) 60%, var(--surface)); border-color: transparent; }
.week-dots i.lvl3 { background: var(--primary); border-color: transparent; }
.week-dots i.today { outline: 2px solid var(--accent); outline-offset: 1px; }
.week-labels { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; font-size: 10px; color: var(--ink-3); text-align: center; margin-top: 4px; }

/* ---------- Course path (a real sequence, so it is numbered) ---------- */
.path { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.file-block { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 0 18px; }
.file-num { position: relative; display: flex; flex-direction: column; align-items: center; }
.file-num b { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; font-family: var(--f-display-en); font-size: var(--t-2xl); font-weight: 600; background: var(--surface); border: 1.5px solid var(--line); color: var(--ink-2); z-index: 1; }
.file-num::after { content: ""; flex: 1; width: 2px; background: var(--line); margin: 4px 0; }
.file-block:last-child .file-num::after { display: none; }
.file-block.done .file-num b { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.file-block.current .file-num b { border-color: var(--accent); color: var(--accent); box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 18%, transparent); }
.file-body { padding-bottom: 28px; min-width: 0; }
.file-body > h3 { font-size: var(--t-md); color: var(--ink-3); font-family: var(--f-ui); font-weight: 600; margin: 14px 0 10px; }
.lessons { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
.lesson-tile {
  position: relative; display: flex; flex-direction: column; gap: 4px;
  padding: 14px 16px; border-radius: var(--r-md);
  background: var(--surface); border: 1px solid var(--line);
  text-decoration: none; color: var(--ink);
  transition: border-color .2s, background-color .2s;
}
.lesson-tile:hover { border-color: color-mix(in oklab, var(--primary) 50%, var(--line)); }
.lesson-tile .top { display: flex; align-items: center; gap: 8px; }
.lesson-tile .code { font-family: var(--f-display-en); font-weight: 600; font-size: var(--t-xl); color: var(--primary); }
.lesson-tile .kind { font-size: var(--t-xs); color: var(--ink-3); }
.lesson-tile .title { font-family: var(--f-display-en); font-size: var(--t-md); line-height: 1.3; }
.lesson-tile .state { margin-inline-start: auto; }
.lesson-tile .state svg { width: 18px; height: 18px; }
.lesson-tile.locked { background: transparent; border-style: dashed; color: var(--ink-3); }
.lesson-tile.locked .code { color: var(--ink-3); }
.lesson-tile.done .state { color: var(--ok); }
.lesson-tile.current { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.lesson-tile.test { background: color-mix(in oklab, var(--primary-2) 60%, var(--surface)); }
.lesson-tile .bar { height: 3px; border-radius: 3px; background: var(--line); margin-top: 8px; overflow: hidden; }
.lesson-tile .bar i { display: block; height: 100%; background: var(--primary); }

/* ---------- Level cards (course map) ---------- */
.levels { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.level-card { position: relative; display: flex; flex-direction: column; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); background: var(--surface); text-decoration: none; color: var(--ink); min-height: 230px; }
.level-card .mini-land { height: 110px; position: relative; }
.level-card .mini-land svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.level-card .body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 4px; flex: 1; }
.level-card .body h3 { font-family: var(--f-display-en); font-size: var(--t-xl); }
.level-card .cefr { font-size: var(--t-xs); color: var(--ink-3); }
.level-card .scene { font-size: var(--t-sm); color: var(--ink-2); }
.level-card .progress { margin-top: auto; padding-top: 10px; }
.level-card.locked .body h3 { color: var(--ink-2); }

.pbar { height: 6px; background: var(--bg-2); border-radius: 99px; overflow: hidden; }
.pbar i { display: block; height: 100%; background: var(--primary); border-radius: 99px; transition: width .6s var(--ease); }
.pbar.accent i { background: var(--accent); }

/* ---------- Lesson page ---------- */
.lesson-head { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: end; gap: 8px 28px; padding: 36px 0 22px; border-bottom: 1px solid var(--line); margin-bottom: 26px; }
.lesson-code { font-family: var(--f-display-en); font-size: 6.5rem; line-height: .82; font-weight: 600; color: var(--primary); letter-spacing: -0.04em; font-variation-settings: "opsz" 72; }
.lesson-code.long { font-size: 3.6rem; line-height: 1; letter-spacing: -0.02em; }
.lesson-title h1 { font-family: var(--f-display-en); font-size: var(--t-4xl); font-weight: 500; letter-spacing: -0.02em; }
.lesson-title .crumbs { font-size: var(--t-sm); color: var(--ink-3); margin-bottom: 6px; }
.lesson-title .crumbs a { color: var(--ink-3); }
.focus { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; margin-top: 20px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); grid-column: 1 / -1; }
.focus > div { padding: 12px 16px; border-inline-start: 1px solid var(--line); }
.focus > div:first-child { border-inline-start: none; }
.focus small { display: block; font-size: var(--t-xs); color: var(--ink-3); margin-bottom: 2px; }
.focus span { font-family: var(--f-body-en); font-size: var(--t-sm); }
.lesson-actions { display: flex; gap: 8px; align-self: center; }

.tabs { display: flex; flex-wrap: wrap; gap: 2px 4px; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
.tabs button {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 14px; border: none; background: none; cursor: pointer;
  color: var(--ink-2); font-size: var(--t-sm); font-weight: 600; white-space: nowrap;
  border-bottom: 2.5px solid transparent; margin-bottom: -1px;
}
.tabs button svg { width: 17px; height: 17px; }
.tabs button:hover { color: var(--ink); }
.tabs button[aria-selected="true"] { color: var(--primary); border-bottom-color: var(--primary); }
.tabs button .count { font-size: var(--t-xs); color: var(--ink-3); font-weight: 400; }

.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; }
.steps li { display: grid; grid-template-columns: 32px minmax(0, 1fr); gap: 12px; align-items: start; padding: 10px 0; border-top: 1px solid var(--line); }
.steps li:first-child { border-top: none; }
.steps .tick { width: 28px; height: 28px; border-radius: 99px; border: 1.5px solid var(--line); display: grid; place-items: center; background: var(--surface); cursor: pointer; color: transparent; padding: 0; }
.steps .tick svg { width: 15px; height: 15px; }
.steps li.done .tick { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.steps .lbl { font-size: var(--t-sm); padding-top: 3px; }
.steps .lbl small { display: block; color: var(--ink-3); font-size: var(--t-xs); }
.steps li.done .lbl { color: var(--ink-2); }
.steps button.lbl { background: none; border: none; text-align: start; cursor: pointer; padding: 3px 0 0; }
.steps button.lbl:hover b { color: var(--primary); }

/* Book reader */
.reader { background: var(--bg-2); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.reader-bar { display: flex; align-items: center; gap: 8px; padding: 10px 12px; background: var(--surface); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.reader-bar .pg { font-size: var(--t-sm); color: var(--ink-2); font-variant-numeric: tabular-nums; min-width: 9ch; text-align: center; }
.reader-bar select { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 6px 8px; font-size: var(--t-sm); }
.reader-stage { overflow: auto; max-height: calc(100vh - 140px); padding: 18px; }
.spread { display: flex; justify-content: center; gap: 4px; margin: 0 auto; transform-origin: top center; direction: ltr; }
.spread img { width: auto; max-width: 50%; height: auto; background: #fff; box-shadow: 0 1px 0 var(--line), 0 10px 30px -18px rgb(0 0 0 / .45); user-select: none; }
.spread.single img { max-width: 100%; }
.spread.zoom img { max-width: none; width: calc(var(--zoom, 1) * 50%); }
:root[data-theme="dark"] .spread img.dim, .dim-pages .spread img { filter: brightness(.86) contrast(1.05); }
.reader-empty { padding: 48px; text-align: center; color: var(--ink-2); }

/* Media lists */
.media-list { display: flex; flex-direction: column; }
.media-item { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 12px 4px; border-top: 1px solid var(--line); }
.media-item:first-child { border-top: none; }
.media-item .play { width: 40px; height: 40px; border-radius: 99px; background: var(--primary-2); border: none; color: var(--primary); display: grid; place-items: center; cursor: pointer; }
.media-item .play svg { width: 18px; height: 18px; }
.media-item.active .play { background: var(--primary); color: var(--on-primary); }
.media-item .name { font-family: var(--f-body-en); font-size: var(--t-sm); font-weight: 600; }
.media-item .desc { font-size: var(--t-xs); color: var(--ink-3); }
.media-item.missing { opacity: .55; }
.transcript { grid-column: 1 / -1; background: var(--bg); border-radius: var(--r-md); padding: 14px 16px; font-family: var(--f-body-en); font-size: var(--t-sm); white-space: pre-wrap; line-height: 1.7; direction: ltr; text-align: left; max-height: 360px; overflow: auto; }

/* Audio player (sticky, under the page header) */
.player { position: sticky; bottom: 16px; z-index: 30; margin-top: 18px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 12px 16px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: 0 18px 40px -28px rgb(0 0 0 / .5); }
.player .ttl { font-family: var(--f-body-en); font-weight: 700; font-size: var(--t-sm); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player .scrub { display: flex; align-items: center; gap: 10px; font-size: var(--t-xs); color: var(--ink-3); font-variant-numeric: tabular-nums; direction: ltr; }
.player input[type=range] { flex: 1; accent-color: var(--primary); }
.player .ctl { display: flex; gap: 4px; align-items: center; direction: ltr; }
.player .rate { min-width: 52px; }
.player .ab { font-size: var(--t-xs); }
.player .ab.on { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }

.video-box { background: #000; border-radius: var(--r-lg); overflow: hidden; aspect-ratio: 16 / 9; }
.video-box video { width: 100%; height: 100%; }
.video-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: var(--gap); align-items: start; }

/* Sound bank */
.sounds { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 10px; }
.sound { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 14px 8px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--surface); cursor: pointer; }
.sound:hover, .sound.active { border-color: var(--primary); }
.sound .sym { font-family: "Doulos SIL", "Charis SIL", "Segoe UI", var(--f-body-en); font-size: var(--t-2xl); color: var(--primary); }
.sound .kw { font-family: var(--f-body-en); font-size: var(--t-sm); }

/* Notes */
.notes textarea { width: 100%; min-height: 280px; resize: vertical; padding: 16px; border-radius: var(--r-md); border: 1px solid var(--line); background: var(--surface); line-height: 1.7; }
.notes textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in oklab, var(--primary) 18%, transparent); }

/* ---------- Quiz ---------- */
.quiz { max-width: 760px; margin: 0 auto; }
.quiz-top { display: flex; align-items: center; gap: 16px; padding: 28px 0 18px; }
.quiz-top .pbar { flex: 1; }
.quiz-top .count { font-size: var(--t-sm); color: var(--ink-3); font-variant-numeric: tabular-nums; }
.q-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 30px 32px; }
.q-kind { font-size: var(--t-xs); color: var(--ink-3); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.q-prompt { font-family: var(--f-display-en); font-size: var(--t-2xl); line-height: 1.4; direction: ltr; text-align: left; margin-bottom: 22px; }
.q-prompt .gap { display: inline-block; min-width: 4ch; border-bottom: 2px solid var(--primary); }
.q-help { font-size: var(--t-sm); color: var(--ink-2); margin: -12px 0 18px; }
.options { display: grid; gap: 10px; direction: ltr; }
.options.two { grid-template-columns: 1fr 1fr; }
.opt { display: flex; align-items: center; gap: 14px; text-align: left; padding: 14px 16px; border-radius: var(--r-md); border: 1.5px solid var(--line); background: var(--surface); cursor: pointer; font-family: var(--f-body-en); font-size: var(--t-lg); transition: border-color .15s, background-color .15s; }
.opt:hover { border-color: color-mix(in oklab, var(--primary) 55%, var(--line)); }
.opt .key { width: 28px; height: 28px; flex: none; border-radius: 8px; display: grid; place-items: center; font-size: var(--t-xs); font-weight: 700; background: var(--bg-2); color: var(--ink-2); }
.opt.sel { border-color: var(--primary); background: color-mix(in oklab, var(--primary) 6%, var(--surface)); }
.opt.right { border-color: var(--ok); background: var(--ok-bg); }
.opt.wrong { border-color: var(--bad); background: var(--bad-bg); }
.opt[disabled] { cursor: default; }
.opt.ar-opt { direction: rtl; text-align: right; font-family: var(--f-body-ar); }
.q-input { width: 100%; padding: 14px 16px; font-family: var(--f-body-en); font-size: var(--t-xl); border-radius: var(--r-md); border: 1.5px solid var(--line); background: var(--surface); direction: ltr; }
.q-input:focus { outline: none; border-color: var(--primary); }
.q-input.right { border-color: var(--ok); background: var(--ok-bg); }
.q-input.wrong { border-color: var(--bad); background: var(--bad-bg); }
.tiles { display: flex; flex-wrap: wrap; gap: 8px; direction: ltr; min-height: 52px; padding: 10px; border-radius: var(--r-md); border: 1.5px dashed var(--line); }
.tiles.answer { border-style: solid; background: var(--bg); margin-bottom: 12px; }
.tile { padding: 8px 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); font-family: var(--f-body-en); font-size: var(--t-lg); cursor: pointer; }
.tile:hover { border-color: var(--primary); }
.feedback { margin-top: 20px; padding: 14px 18px; border-radius: var(--r-md); font-size: var(--t-sm); display: flex; gap: 12px; align-items: flex-start; }
.feedback svg { width: 20px; height: 20px; flex: none; margin-top: 2px; }
.feedback.ok { background: var(--ok-bg); color: var(--ok); }
.feedback.bad { background: var(--bad-bg); color: var(--bad); }
.feedback .why { color: var(--ink); display: block; margin-top: 4px; }
.feedback .en { font-weight: 700; }
.q-foot { display: flex; align-items: center; gap: 12px; margin-top: 24px; }
.q-foot .spacer { flex: 1; }
.listen-big { width: 84px; height: 84px; border-radius: 99px; border: none; background: var(--primary); color: var(--on-primary); display: grid; place-items: center; cursor: pointer; margin: 0 auto 22px; }
.listen-big svg { width: 34px; height: 34px; }
.result { text-align: center; padding: 34px 20px 10px; }
.result .score { font-family: var(--f-display-en); font-size: 5.5rem; line-height: 1; font-weight: 600; color: var(--primary); }
.result.pass .score { color: var(--ok); }
.result.fail .score { color: var(--bad); }
.result p { max-width: 50ch; margin: 12px auto; color: var(--ink-2); }
.review-list { list-style: none; padding: 0; margin: 0; }
.review-list li { padding: 14px 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 10px; font-size: var(--t-sm); }
.review-list li svg { width: 18px; height: 18px; margin-top: 3px; }
.review-list .ok-i { color: var(--ok); }
.review-list .bad-i { color: var(--bad); }
.review-list .q { font-family: var(--f-body-en); direction: ltr; text-align: left; }

/* ---------- Flashcards (vocabulary review) ---------- */
.flash { perspective: 1400px; max-width: 620px; margin: 0 auto; }
.flash-card { position: relative; height: 340px; transform-style: preserve-3d; transition: transform .55s var(--ease); cursor: pointer; }
.flash-card.flipped { transform: rotateY(180deg); }
.flash-face { position: absolute; inset: 0; backface-visibility: hidden; border-radius: var(--r-lg); border: 1px solid var(--line); background: var(--surface); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; padding: 28px; text-align: center; }
.flash-face.back { transform: rotateY(180deg); background: color-mix(in oklab, var(--primary-2) 45%, var(--surface)); }
.flash-face .big { font-family: var(--f-display-en); font-size: var(--t-4xl); font-weight: 600; }
.flash-face .ar { font-size: var(--t-2xl); }
.flash-face .ex { font-family: var(--f-body-en); color: var(--ink-2); max-width: 44ch; }
.grade-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 18px; }
.grade-row .btn { flex-direction: column; gap: 2px; min-height: 58px; }
.grade-row .btn small { font-weight: 400; color: var(--ink-3); font-size: var(--t-xs); }

/* ---------- Tables & lists ---------- */
.table { width: 100%; border-collapse: collapse; font-size: var(--t-sm); }
.table th { text-align: start; font-size: var(--t-xs); color: var(--ink-3); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.table td { padding: 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table tr:last-child td { border-bottom: none; }

.empty { text-align: center; padding: 40px 20px; color: var(--ink-2); }
.empty svg { width: 40px; height: 40px; margin: 0 auto 12px; color: var(--ink-3); }

/* ---------- Forms ---------- */
.field { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 8px 24px; padding: 16px 0; border-top: 1px solid var(--line); align-items: center; }
.field:first-of-type { border-top: none; }
.field label, .field .lbl { font-weight: 600; font-size: var(--t-sm); }
.field .hint { grid-column: 1; font-size: var(--t-xs); color: var(--ink-3); margin-top: -4px; }
.field .ctl { grid-column: 2; grid-row: 1 / span 2; }
.input, select.input { width: 100%; padding: 10px 12px; border-radius: var(--r-sm); border: 1px solid var(--line); background: var(--surface); }
.input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in oklab, var(--primary) 16%, transparent); }
.seg { display: inline-flex; padding: 3px; border-radius: 10px; background: var(--bg-2); border: 1px solid var(--line); }
.seg button { border: none; background: transparent; padding: 6px 12px; border-radius: 8px; cursor: pointer; font-size: var(--t-sm); color: var(--ink-2); }
.seg button[aria-pressed="true"] { background: var(--surface); color: var(--ink); box-shadow: 0 1px 2px rgb(0 0 0 / .12); }
.switch { position: relative; width: 44px; height: 26px; flex: none; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch span { position: absolute; inset: 0; border-radius: 99px; background: var(--line); cursor: pointer; transition: background-color .2s; }
.switch span::after { content: ""; position: absolute; top: 3px; inset-inline-start: 3px; width: 20px; height: 20px; border-radius: 99px; background: #fff; transition: transform .2s var(--ease); box-shadow: 0 1px 2px rgb(0 0 0 / .2); }
.switch input:checked + span { background: var(--primary); }
.switch input:checked + span::after { transform: translateX(18px); }
html[dir="rtl"] .switch input:checked + span::after { transform: translateX(-18px); }
.switch input:focus-visible + span { outline: 2.5px solid var(--accent); outline-offset: 2px; }

/* ---------- Charts ---------- */
.chart { width: 100%; height: auto; overflow: visible; }
.chart .axis { stroke: var(--line); }
.chart .gridl { stroke: var(--line); stroke-dasharray: 2 4; }
.chart text { fill: var(--ink-3); font-size: 11px; font-family: var(--f-body-en); }
.chart .bar { fill: var(--primary); }
.chart .bar.goal-met { fill: var(--primary); }
.chart .bar.under { fill: color-mix(in oklab, var(--primary) 40%, var(--surface)); }
.chart .goal { stroke: var(--accent); stroke-dasharray: 5 4; stroke-width: 1.5; }
.chart .line { fill: none; stroke: var(--primary); stroke-width: 2; }
.chart .dot { fill: var(--surface); stroke: var(--primary); stroke-width: 2; }
.chart .pass { stroke: var(--ok); stroke-dasharray: 4 4; }
.heat { display: grid; grid-auto-flow: column; grid-template-rows: repeat(7, 13px); gap: 3px; direction: ltr; overflow-x: auto; padding-bottom: 4px; }
.heat i { width: 13px; height: 13px; border-radius: 3px; background: var(--bg-2); }
.heat i.h1 { background: color-mix(in oklab, var(--primary) 28%, var(--surface)); }
.heat i.h2 { background: color-mix(in oklab, var(--primary) 52%, var(--surface)); }
.heat i.h3 { background: color-mix(in oklab, var(--primary) 76%, var(--surface)); }
.heat i.h4 { background: var(--primary); }
.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--surface); }
.kpi { padding: 18px 20px; border-inline-start: 1px solid var(--line); }
.kpi:first-child { border-inline-start: none; }
.kpi small { display: block; font-size: var(--t-xs); color: var(--ink-3); }
.kpi b { font-family: var(--f-display-en); font-size: var(--t-3xl); font-weight: 600; line-height: 1.2; }
.kpi span { font-size: var(--t-xs); color: var(--ink-2); }

/* ---------- Toast & dialog ---------- */
.toasts { position: fixed; inset-block-end: 20px; inset-inline-end: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 100; }
.toast { background: var(--ink); color: var(--bg); padding: 12px 16px; border-radius: var(--r-md); font-size: var(--t-sm); max-width: 380px; box-shadow: 0 12px 30px -16px rgb(0 0 0 / .6); animation: toast-in .3s var(--ease) both; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }
dialog { border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--surface); color: var(--ink); padding: 0; width: min(560px, calc(100vw - 32px)); box-shadow: 0 30px 80px -30px rgb(0 0 0 / .55); }
dialog::backdrop { background: rgb(10 14 12 / .45); backdrop-filter: blur(2px); }
.dlg-head { padding: 20px 24px 0; }
.dlg-body { padding: 14px 24px; }
.dlg-foot { padding: 14px 24px 20px; display: flex; gap: 8px; justify-content: flex-end; }

/* ---------- Search ---------- */
.search-box { position: relative; }
.search-box svg { position: absolute; top: 50%; inset-inline-start: 16px; transform: translateY(-50%); width: 20px; height: 20px; color: var(--ink-3); }
.search-box input { width: 100%; padding: 16px 18px; padding-inline-start: 48px; font-size: var(--t-lg); border-radius: var(--r-lg); border: 1px solid var(--line); background: var(--surface); }
.search-box input:focus { outline: none; border-color: var(--primary); }
.hits { list-style: none; padding: 0; margin: 0; }
.hits li a { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 12px; padding: 12px 8px; border-top: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.hits li a:hover { background: color-mix(in oklab, var(--primary) 5%, transparent); }
.hits .ic { width: 40px; height: 40px; border-radius: 10px; background: var(--primary-2); color: var(--primary); display: grid; place-items: center; }
.hits .ic svg { width: 18px; height: 18px; }
.hits small { color: var(--ink-3); display: block; }
mark { background: color-mix(in oklab, var(--accent) 25%, transparent); color: inherit; border-radius: 3px; padding: 0 2px; }

/* ---------- AI panels ---------- */
.ai-out { background: var(--bg); border: 1px solid var(--line); border-radius: var(--r-md); padding: 16px 18px; font-size: var(--t-sm); line-height: 1.75; white-space: pre-wrap; }
.rec { display: inline-flex; align-items: center; gap: 10px; }
.rec .dot { width: 10px; height: 10px; border-radius: 99px; background: var(--bad); animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: .3; } }

/* ---------- Notice ---------- */
.notice { display: flex; gap: 12px; padding: 14px 16px; border-radius: var(--r-md); background: var(--warn-bg); color: var(--ink); font-size: var(--t-sm); border: 1px solid color-mix(in oklab, var(--warn) 25%, transparent); }
.notice svg { width: 20px; height: 20px; flex: none; color: var(--warn); margin-top: 2px; }
.notice.info { background: color-mix(in oklab, var(--primary) 7%, var(--surface)); border-color: color-mix(in oklab, var(--primary) 20%, transparent); }
.notice.info svg { color: var(--primary); }

kbd { font-family: var(--f-body-en); font-size: var(--t-xs); padding: 1px 6px; border-radius: 5px; border: 1px solid var(--line); border-bottom-width: 2px; background: var(--surface); }

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .grid-main { grid-template-columns: minmax(0, 1fr); }
  .video-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 980px) {
  :root { --rail: 76px; }
  .brand-name, .nav a span:not(.count), .nav-group-label, .rail-timer .lbl { display: none; }
  .nav a { justify-content: center; padding: 11px; }
  .nav a .count { display: none; }
  .brand { justify-content: center; padding-inline: 0; }
  .rail-toggles { flex-direction: column; }
  .rail-timer { justify-content: center; padding: 8px; }
  .page { padding: 0 24px 64px; }
  .horizon { margin: 0 -24px 28px; }
  .horizon-inner { padding: 36px 24px 28px; }
  .lesson-code { font-size: 4.5rem; }
  .lesson-title h1 { font-size: var(--t-3xl); }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kpi:nth-child(3) { border-inline-start: none; }
  .kpi:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 680px) {
  .shell { grid-template-columns: 1fr; }
  .rail { position: sticky; top: 0; z-index: 40; height: auto; flex-direction: row; align-items: center; padding: 8px 10px; overflow-x: auto; border-inline-end: none; border-bottom: 1px solid var(--line); }
  .brand { padding: 0 6px; }
  .nav { flex-direction: row; }
  .rail-foot { flex-direction: row; margin: 0; padding: 0; }
  .rail-timer { display: none; }
  .page { padding: 0 16px 56px; }
  .horizon { margin: 0 -16px 24px; }
  .horizon-inner { padding: 28px 16px 22px; }
  .horizon h1 { font-size: var(--t-3xl); }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .lesson-head { grid-template-columns: 1fr; }
  .focus { grid-template-columns: 1fr; }
  .focus > div { border-inline-start: none; border-top: 1px solid var(--line); }
  .focus > div:first-child { border-top: none; }
  .field { grid-template-columns: 1fr; }
  .field .ctl { grid-column: 1; grid-row: auto; }
  .q-card { padding: 22px 18px; }
  .options.two { grid-template-columns: 1fr; }
  .w-pron .ipa { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}
@media print {
  .rail, .tabs, .player { display: none !important; }
  .shell { display: block; }
}

/* rail timer button */
.rail-timer { cursor: pointer; text-align: start; color: var(--ink); font: inherit; font-size: var(--t-sm); }
.rail-timer:hover { border-color: color-mix(in oklab, var(--primary) 45%, var(--line)); }
.rail-timer.on { border-color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.rail-timer.on svg { color: var(--accent); }
details summary { cursor: pointer; padding: 6px 0; }

/* ---------- Words dock: today's words beside every page ---------- */
:root { --dock: 304px; }
.shell { grid-template-columns: var(--rail) minmax(0, 1fr) var(--dock); }
.dock {
  position: sticky; top: 0; height: 100vh; overflow-y: auto;
  padding: 22px 18px 18px;
  background: var(--bg-2);
  border-inline-start: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 14px;
  scrollbar-width: thin;
}
.dock-head { display: flex; align-items: flex-start; gap: 8px; }
.dock-head > div { flex: 1; }
.dock-head h2 { font-size: var(--t-lg); }
.dock-focus {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 12px 16px 16px; display: flex; flex-direction: column; gap: 4px;
  border-top: 3px solid var(--accent);
}
@media (prefers-reduced-motion: no-preference) {
  .dock-focus { animation: dock-in .5s var(--ease) both; }
}
@keyframes dock-in { from { opacity: 0; transform: translateY(6px); } }
.dock-focus-top { display: flex; align-items: center; gap: 6px; margin-bottom: 2px; }
.dock-word { display: flex; align-items: center; gap: 10px; justify-content: space-between; }
.dock-word .en-d { font-size: var(--t-3xl); font-weight: 600; line-height: 1.1; color: var(--ink); word-break: break-word; }
.dock-word .speak { width: 38px; height: 38px; }
.dock-hard { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.dock-hard .ar { font-size: var(--t-xl); color: var(--accent); }
.dock-hard .ipa { font-size: var(--t-sm); }
.dock-mean { font-size: var(--t-xl); color: var(--primary); font-weight: 600; margin-top: 2px; }
.dock-ex { font-family: var(--f-body-en); font-size: var(--t-sm); color: var(--ink-2); line-height: 1.5; margin-top: 4px; }
.dock-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.dock-row { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 4px; padding: 8px 6px; border-radius: var(--r-sm); cursor: pointer; border-top: 1px solid var(--line); }
.dock-row:first-child { border-top: none; }
.dock-row:hover { background: color-mix(in oklab, var(--primary) 6%, transparent); }
.dock-row.on { background: var(--surface); box-shadow: inset 3px 0 0 var(--accent); }
html[dir="rtl"] .dock-row.on { box-shadow: inset -3px 0 0 var(--accent); }
.dock-row-main { display: flex; flex-direction: column; min-width: 0; }
.dock-row .w { font-family: var(--f-body-en); font-weight: 700; font-size: var(--t-md); direction: ltr; text-align: start; unicode-bidi: isolate; overflow-wrap: anywhere; }
html[dir="rtl"] .dock-row .w { text-align: right; }
.dock-row .m { font-size: var(--t-sm); color: var(--ink-2); }
.dock-row .p { font-size: var(--t-xs); color: var(--accent); }
.dock-row.is-known { opacity: .5; }
.speak.sm { width: 28px; height: 28px; }
.speak.sm svg { width: 14px; height: 14px; }
.dock-foot { display: flex; gap: 6px; flex-wrap: wrap; margin-top: auto; padding-top: 6px; }
.dock-foot .btn { flex: 1; }
.w-pron .hard .ar { color: var(--accent); }

/* ---------- Lesson steps as a numbered strip ---------- */
.steps-strip { list-style: none; margin: 0 0 20px; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(92px, 1fr)); gap: 6px; }
.steps-strip li { display: flex; gap: 8px; align-items: center; padding: 8px 10px; border-radius: var(--r-md); background: var(--surface); border: 1px solid var(--line); }
.steps-strip li.done { background: color-mix(in oklab, var(--primary) 7%, var(--surface)); border-color: color-mix(in oklab, var(--primary) 30%, var(--line)); }
.steps-strip .tick { width: 28px; height: 28px; flex: none; border-radius: 99px; border: 1.5px solid var(--line); background: var(--surface); display: grid; place-items: center; cursor: pointer; padding: 0; color: var(--ink-2); font-size: var(--t-xs); font-weight: 700; }
.steps-strip .tick svg { display: none; width: 15px; height: 15px; }
.steps-strip li.done .tick { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.steps-strip li.done .tick .n { display: none; }
.steps-strip li.done .tick svg { display: block; }
.steps-strip .tick[disabled] { cursor: default; }
.steps-strip .lbl { background: none; border: none; padding: 2px 0 0; text-align: start; cursor: pointer; min-width: 0; color: var(--ink); }
.steps-strip .lbl b { display: block; font-size: var(--t-sm); line-height: 1.3; }
.steps-strip .lbl small { display: block; font-size: var(--t-xs); color: var(--ink-3); line-height: 1.35; }
.steps-strip .lbl:hover b { color: var(--primary); }

@media (max-width: 1280px) { :root { --dock: 268px; } .dock-word .en-d { font-size: var(--t-2xl); } }
@media (max-width: 980px) { :root { --dock: 240px; } }
@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .dock { position: sticky; bottom: 0; top: auto; height: auto; max-height: 40vh; border-inline-start: none; border-top: 1px solid var(--line); order: 3; }
  .dock-list, .dock-foot { display: none; }
}

/* English titles inside the Arabic interface keep their own reading order */
.media-item .name, .player .ttl, .lesson-tile .title, .lesson-title h1, .focus span, .hits [lang="en"], .continue-card b, .q, .dock-ex { unicode-bidi: isolate; direction: ltr; }
html[dir="rtl"] .media-item .name, html[dir="rtl"] .player .ttl, html[dir="rtl"] .lesson-tile .title, html[dir="rtl"] .lesson-title h1, html[dir="rtl"] .focus span, html[dir="rtl"] .continue-card b, html[dir="rtl"] .dock-ex { text-align: right; }
.steps-strip .lbl small { white-space: nowrap; }
.steps-strip li { flex-direction: column; align-items: flex-start; gap: 6px; }
.steps-strip .tick { width: 24px; height: 24px; }
.steps-strip .lbl { padding: 0; width: 100%; }
.steps-strip .lbl b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.table .btn { white-space: nowrap; }

/* ===================== Free corrections: read aloud, speaking, writing ===================== */
.practice .task { font-weight: 600; margin: 0 0 12px; unicode-bidi: isolate; }
.practice textarea.input { font-family: var(--f-body-en); font-size: var(--t-md); line-height: 1.7; resize: vertical; }
.chk-tools { margin-top: 12px; }
.mt-s { margin-top: 12px; }

.say-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg, 16px); padding: 20px 22px 18px; position: relative; transition: border-color .2s, box-shadow .2s; }
.say-card.listening { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in oklab, var(--accent) 14%, transparent); }
.say-top { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.say-text { font-family: var(--f-display-en); font-size: clamp(1.4rem, 1.1rem + 1.2vw, 2rem); line-height: 1.35; color: var(--ink); direction: ltr; text-align: left; unicode-bidi: isolate; margin: 4px 0 6px; }
.say-text.is-word { font-size: clamp(1.8rem, 1.4rem + 1.6vw, 2.6rem); font-weight: 600; }
.say-text .w-ok { color: var(--ok); }
.say-text .w-bad { color: var(--bad); text-decoration: underline wavy color-mix(in oklab, var(--bad) 55%, transparent); text-underline-offset: 5px; cursor: help; }
.say-ipa { display: flex; gap: 14px; align-items: baseline; flex-wrap: wrap; font-size: var(--t-md); }
.say-ipa .say-tr { color: var(--accent); font-weight: 600; }
.say-mean { color: var(--ink-2); margin-top: 2px; }
.say-actions { margin-top: 14px; }
.mic-btn { gap: 10px; }
.say-live { min-height: 1.6em; margin-top: 10px; color: var(--ink-3); font-style: italic; direction: ltr; text-align: left; unicode-bidi: isolate; font-family: var(--f-body-en); }
[dir="rtl"] .say-live:empty { min-height: 0; }
.say-res { display: grid; gap: 10px; margin-top: 6px; }
.say-res:empty { display: none; }
.say-score { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-radius: var(--r-md); }
.say-score b { font-size: var(--t-xl); }
.say-score.ex { background: var(--ok-bg); color: var(--ok); }
.say-score.good { background: var(--warn-bg); color: var(--warn); }
.say-score.try { background: var(--bad-bg); color: var(--bad); }
.say-score span { color: var(--ink); }
.say-heard { font-size: var(--t-sm); }
.say-fix .row { gap: 8px; margin-top: 6px; }
.fix-w { gap: 8px; }
.fix-w .ipa { font-size: var(--t-xs); }
.say-card audio { width: 100%; margin-top: 10px; height: 36px; }
.say-prog { margin-top: 8px; }

.chk-sum { display: flex; gap: 12px; padding: 14px 16px; border-radius: var(--r-md); background: var(--warn-bg); border: 1px solid color-mix(in oklab, var(--warn) 22%, transparent); }
.chk-sum > svg { width: 20px; height: 20px; flex: none; color: var(--warn); margin-top: 2px; }
.chk-sum.ok { background: var(--ok-bg); border-color: color-mix(in oklab, var(--ok) 22%, transparent); }
.chk-sum.ok > svg { color: var(--ok); }
.chk-sum .chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 4px; }
.chk-stale { display: flex; gap: 8px; align-items: center; color: var(--warn); margin-bottom: 8px; }
.chk-stale svg { width: 16px; height: 16px; }
.chk-text { margin-top: 12px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-md); padding: 14px 16px; font-family: var(--f-body-en); font-size: var(--t-md); line-height: 1.9; white-space: pre-wrap; direction: ltr; text-align: left; unicode-bidi: isolate; }
mark.iss { background: transparent; color: inherit; border-bottom: 2px solid var(--cat, var(--warn)); background: color-mix(in oklab, var(--cat, var(--warn)) 12%, transparent); border-radius: 3px 3px 0 0; padding: 0 1px; cursor: pointer; }
mark.iss:focus-visible { outline: 2px solid var(--cat, var(--warn)); }
.cat-grammar { --cat: var(--bad); }
.cat-spelling { --cat: var(--warn); }
.cat-word { --cat: var(--accent); }
.cat-punct, .cat-caps { --cat: var(--primary); }
.cat-style, .cat-other, .cat-ai { --cat: var(--ink-3); }
.chip.cat-grammar, .chip.cat-spelling, .chip.cat-word, .chip.cat-punct, .chip.cat-caps, .chip.cat-style, .chip.cat-other, .chip.cat-ai { background: color-mix(in oklab, var(--cat) 13%, var(--surface)); color: var(--cat); }
.iss-list { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 8px; }
.iss-list > li { border: 1px solid var(--line); border-inline-start: 3px solid var(--cat, var(--line)); border-radius: var(--r-sm); padding: 10px 12px; background: var(--surface); transition: box-shadow .3s; }
.iss-list > li.flash { box-shadow: 0 0 0 3px color-mix(in oklab, var(--cat, var(--primary)) 30%, transparent); }
.iss-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.iss-wrong { color: var(--bad); font-family: var(--f-body-en); }
.iss-right { color: var(--ok); font-family: var(--f-body-en); }
.iss-head .arrow { color: var(--ink-3); }
.iss-msg { margin: 6px 0 0; font-size: var(--t-sm); color: var(--ink-2); }
.iss-en { margin-top: 6px; font-size: var(--t-sm); color: var(--ink-2); }
.iss-en summary { cursor: pointer; color: var(--ink-3); font-size: var(--t-xs); }
.iss-en > div { margin-top: 4px; text-align: left; }
.iss-reps { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; margin-top: 8px; }
.iss-reps .rep { font-family: var(--f-body-en); color: var(--ok); border-color: color-mix(in oklab, var(--ok) 35%, var(--line)); }
.iss-reps .rep:hover { background: var(--ok-bg); }

.ai-card { border: 1px solid var(--line); border-radius: var(--r-md); padding: 16px 18px; background: var(--bg); }
.ai-top { display: flex; gap: 14px; align-items: center; }
.ai-score { display: inline-flex; align-items: baseline; gap: 2px; padding: 8px 12px; border-radius: var(--r-md); background: var(--bg-2); }
.ai-score b { font-size: var(--t-2xl, 1.6rem); }
.ai-score.ok { color: var(--ok); background: var(--ok-bg); }
.ai-score.mid { color: var(--warn); background: var(--warn-bg); }
.ai-score.low { color: var(--bad); background: var(--bad-bg); }
.ai-tip { display: flex; gap: 10px; margin-top: 12px; font-size: var(--t-sm); }
.ai-tip svg { width: 18px; height: 18px; color: var(--accent); flex: none; }

.dock-word .en-d { flex: 1; min-width: 0; }
.dock-word .say-btn { color: var(--accent); }
.dock-word .say-btn:hover, .dock-word .say-btn.playing { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.dock-word .say-btn.playing svg { animation: pulse 1s infinite; }
.dock-say { font-size: var(--t-xs); color: var(--ink-3); min-height: 0; }
.dock-say:empty { display: none; }
.dock-say.ok { color: var(--ok); font-weight: 600; }
.dock-say.bad { color: var(--bad); }
.stat { display: flex; align-items: flex-start; gap: 8px; font-size: var(--t-sm); }
.stat svg { width: 18px; height: 18px; flex: none; margin-top: 1px; color: var(--primary); }
[dir="rtl"] .say-text, [dir="rtl"] .say-live { text-align: right; }

/* ===================== Plan, today's plan, sentences, ChatGPT, skills ===================== */
b.ok, .ok > b { color: var(--ok); }
b.bad, .bad > b { color: var(--bad); }
.kpis-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
.kpis-6 .kpi b { font-size: var(--t-2xl); }
.kpi-bad b { color: var(--bad); }
.kpi-ok b { color: var(--ok); }
@media (max-width: 1100px) { .kpis-6 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .kpis-6 .kpi:nth-child(4) { border-inline-start: none; } .kpis-6 .kpi:nth-child(n+4) { border-top: 1px solid var(--line); } }

.plan-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px; margin-bottom: 12px; }
.plan-strip > div { background: var(--bg); border: 1px solid var(--line); border-radius: var(--r-md); padding: 10px 12px; }
.plan-strip small { display: block; font-size: var(--t-xs); color: var(--ink-3); }
.plan-strip b { font-family: var(--f-display-en); font-size: var(--t-xl); font-weight: 600; }
[dir="rtl"] .plan-strip b:not(.num) { font-family: var(--f-display-ar); font-size: var(--t-md); }

.todo { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.todo a { display: grid; grid-template-columns: 34px minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 9px 10px; border-radius: var(--r-md); text-decoration: none; color: var(--ink); border: 1px solid transparent; transition: background .15s, border-color .15s; }
.todo a:hover { background: var(--bg); border-color: var(--line); }
.todo .tick { width: 34px; height: 34px; border-radius: 99px; display: grid; place-items: center; background: var(--primary-2); color: var(--primary); }
.todo .tick svg { width: 17px; height: 17px; }
.todo .txt { display: flex; flex-direction: column; min-width: 0; }
.todo .txt b { font-weight: 600; font-size: var(--t-sm); }
.todo .txt small { font-size: var(--t-xs); color: var(--ink-3); }
.todo .go { color: var(--ink-3); }
.todo .go svg { width: 16px; height: 16px; }
.todo li.done .tick { background: var(--ok-bg); color: var(--ok); }
.todo li.done .txt b { color: var(--ink-3); text-decoration: line-through; text-decoration-color: color-mix(in oklab, var(--ink-3) 50%, transparent); }

.route { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.route-step { display: flex; flex-direction: column; gap: 6px; padding: 12px 14px; border-radius: var(--r-md); border: 1px solid var(--line); background: var(--bg); text-decoration: none; color: var(--ink); position: relative; }
.route-step::before { content: ''; position: absolute; inset: 0 0 auto 0; height: 4px; border-radius: var(--r-md) var(--r-md) 0 0; background: var(--primary); opacity: .55; }
.route-step.current { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 16%, transparent); }
.route-step.done::before { opacity: 1; background: var(--ok); }
.route-top { display: flex; align-items: baseline; justify-content: space-between; gap: 6px; }
.route-top b { font-size: var(--t-sm); }
.route-top .cefr { font-size: var(--t-xs); color: var(--ink-3); }

.milestones { list-style: none; padding: 0; margin: 0; display: grid; gap: 0; }
.milestones li { display: grid; grid-template-columns: 90px 160px minmax(0, 1fr); gap: 12px; padding: 10px 0; border-top: 1px solid var(--line); align-items: baseline; }
.milestones li:first-child { border-top: none; }
.milestones .m { font-weight: 600; }
.milestones li.past { color: var(--ink-3); }
@media (max-width: 720px) { .milestones li { grid-template-columns: 1fr; gap: 2px; } }

.weeks { display: grid; gap: 8px; }
.week { border: 1px solid var(--line); border-radius: var(--r-md); background: var(--bg); padding: 4px 12px; }
.week.this { border-color: var(--primary); }
.week summary { cursor: pointer; padding: 8px 0; }
.week-items { display: grid; gap: 4px; padding: 4px 0 10px; }
.week-item { display: grid; grid-template-columns: 64px minmax(0, 1fr) auto; gap: 10px; align-items: baseline; text-decoration: none; color: var(--ink); padding: 4px 6px; border-radius: 6px; }
.week-item:hover { background: var(--surface); }
.week-item .code { font-family: var(--f-display-en); font-weight: 600; color: var(--primary); }
.week-item .ttl { font-family: var(--f-body-en); font-size: var(--t-sm); }

.gpt-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 12px; }
.gpt-card { display: flex; flex-direction: column; gap: 12px; justify-content: space-between; padding: 16px 18px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--surface); }
.gpt-card-head { display: flex; gap: 12px; align-items: flex-start; }
.gpt-card-head .ic { width: 38px; height: 38px; flex: none; border-radius: 10px; background: var(--primary-2); color: var(--primary); display: grid; place-items: center; }
.gpt-card-head .ic svg { width: 19px; height: 19px; }
.gpt-card-head p { margin: 4px 0 0; }
.gpt-import { display: grid; gap: 10px; }
.gpt-import textarea { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: var(--t-sm); }
.gpt-steps { margin: 16px 0 0; padding-inline-start: 0; list-style: none; display: grid; gap: 14px; }
.gpt-steps li { display: grid; gap: 8px; }

.sent-list { list-style: none; margin: 0; padding: 0; }
.sent-list > li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: start; padding: 12px 0; border-top: 1px solid var(--line); }
.sent-list > li:first-child { border-top: none; }
.sent-main { display: grid; gap: 6px; }
.sent-en { font-family: var(--f-body-en); font-size: var(--t-md); }
.sent-list .ar-in { padding: 6px 10px; font-size: var(--t-sm); max-width: 560px; }
.sent-review { max-width: 720px; }
.sent-review .q-prompt { margin-bottom: 12px; }
.grade-row[hidden] { display: none !important; }
.grade-row .btn.suggest { outline: 2px solid var(--accent); outline-offset: 2px; }
.say-text.small-text { font-size: var(--t-md); font-family: var(--f-body-en); margin: 6px 0; }
.save-sent { color: var(--ink-3); }
.save-sent svg { width: 17px; height: 17px; }
.save-sent[aria-pressed="true"] { color: var(--accent); }
.save-sent[aria-pressed="true"] svg { fill: currentColor; }
.ex .save-sent, .dock-ex .save-sent { width: 26px; height: 26px; min-height: 0; padding: 0; vertical-align: middle; margin-inline-start: 4px; }
.ex .save-sent svg, .dock-ex .save-sent svg { width: 14px; height: 14px; }

.boxes { display: inline-flex; gap: 3px; align-items: center; }
.boxes i { width: 8px; height: 8px; border-radius: 99px; background: var(--bg-2); border: 1px solid var(--line); }
.boxes i.on { background: var(--ok); border-color: var(--ok); }

.skills { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 1100px) { .skills { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.skill-card { display: block; padding: 14px 16px 6px; border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--surface); text-decoration: none; color: var(--ink); }
.skill-card:hover { border-color: var(--primary); }
.skill-head { display: flex; gap: 8px; align-items: center; margin-bottom: 6px; }
.skill-head svg { width: 18px; height: 18px; color: var(--primary); }
.skill-card .stat-line b { font-size: var(--t-lg); }

.weak-words { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; }
.weak-item { display: flex; flex-direction: column; gap: 4px; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--r-md); background: var(--bg); }
.say-word-wrap { display: inline-flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.say-word { gap: 6px; }
.say-word.listening { border-color: var(--accent); color: var(--accent); }
.say-word-res.ok { color: var(--ok); font-weight: 600; }
.say-word-res.bad { color: var(--bad); }

.pdf-reader { background: var(--surface); }
.pdf-box { height: calc(100vh - 210px); min-height: 520px; background: var(--bg-2); }
.pdf-box iframe { width: 100%; height: 100%; border: 0; display: block; }
.pdf-reader > p { padding: 0 14px 12px; }

.shadow-card { grid-column: 1 / -1; margin-top: 10px; }
.today-plan .plan-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.gpt-steps li { justify-items: start; }
.gpt-steps li > .gpt-import { justify-self: stretch; }
.q-card h2 { margin: 4px 0 8px; }

[dir="rtl"] .code, [dir="rtl"] .lesson-code { direction: ltr; unicode-bidi: isolate; }
.kpi b.txt, .plan-strip b.txt { font-family: var(--f-ui); font-size: var(--t-lg); font-weight: 700; line-height: 1.35; display: block; margin-top: 4px; }

/* ---------- official Oxford tests ---------- */
.official .off-group { border-top: 1px solid var(--line); padding: 10px 0; }
.official .off-group > summary { cursor: pointer; padding: 6px 0; list-style-position: inside; }
.official .off-list { display: grid; gap: 10px; margin-top: 8px; }
.off-item { border: 1px solid var(--line); border-radius: var(--r-md, 12px); padding: 12px 14px; display: grid; gap: 10px; background: var(--surface, transparent); }
.off-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.off-links { display: flex; flex-wrap: wrap; gap: 6px; }
.off-player:empty { display: none; }
.off-player audio { width: 100%; max-width: 520px; }
.off-score { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* ---------- Placement test ---------- */
.pl-self { display: grid; gap: 8px; margin-top: 12px; }
.pl-self-opt { display: flex; align-items: flex-start; gap: 12px; text-align: start; padding: 12px 14px; border-radius: var(--r-md); border: 1.5px solid var(--line); background: var(--surface); cursor: pointer; font: inherit; color: inherit; line-height: 1.5; }
.pl-self-opt:hover { border-color: color-mix(in oklab, var(--primary) 55%, var(--line)); }
.pl-self-opt.sel { border-color: var(--primary); background: color-mix(in oklab, var(--primary) 6%, var(--surface)); }
.pl-band { flex: none; min-width: 52px; height: 28px; padding: 0 8px; border-radius: 8px; display: grid; place-items: center; font-size: var(--t-xs); font-weight: 700; background: var(--bg-2); color: var(--ink-2); font-family: var(--f-body-en); }
.pl-self-opt.sel .pl-band { background: var(--primary); color: var(--on-primary); }
.pl-how { margin: 0 0 12px; padding-inline-start: 20px; display: grid; gap: 8px; font-size: var(--t-sm); color: var(--ink-2); line-height: 1.6; }
.pl-passage { direction: ltr; text-align: left; font-family: var(--f-body-en); font-size: var(--t-md, 1rem); line-height: 1.65; background: var(--bg); border: 1px solid var(--line); border-radius: var(--r-md); padding: 16px 18px; margin-bottom: 20px; max-height: 46vh; overflow: auto; white-space: pre-line; }
.pl-passage b { display: block; margin-bottom: 6px; font-family: var(--f-display-en); }
.pl-listen { display: flex; flex-direction: column; align-items: center; gap: 6px; margin-bottom: 18px; }
.pl-listen .listen-big { margin: 0; }
.pl-listen .listen-big[disabled] { opacity: .45; cursor: default; }
.pl-quiz .q-prompt { font-size: var(--t-xl); }
.pl-between .result svg { width: 40px; height: 40px; color: var(--ok); }
.pl-table { width: 100%; border-collapse: collapse; font-size: var(--t-sm); }
.pl-table th { text-align: start; font-size: var(--t-xs); color: var(--ink-3); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--line); }
.pl-table td { padding: 10px; border-bottom: 1px solid var(--line); }
.pl-table tr:last-child td { border-bottom: none; }
.pl-skill { margin: 12px 0; }
.pl-skill .row { margin-bottom: 6px; font-size: var(--t-sm); }
.pl-card .play b { font-size: var(--t-xs); }
.lesson-tile.done.placed .state { color: var(--ink-3); }