/* Cruxly — reading-first theme.
   Every text/surface pair below was measured, not eyeballed: body text clears
   WCAG AAA (7:1) on both grounds, labels clear AA (4.5:1). Inter is vendored
   locally (web/inter-*.woff2) rather than fetched from a CDN, so the app still
   works with the network unplugged; everything else is a system font. */

/* Inter, variable weight 100-900 — one file covers every weight the UI uses. */
@font-face{
  font-family:Inter;
  font-style:normal;
  font-weight:100 900;
  font-display:swap;
  src:url(/static/inter-latin.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,
    U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:Inter;
  font-style:normal;
  font-weight:100 900;
  font-display:swap;
  src:url(/static/inter-latin-ext.woff2) format('woff2');
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,
    U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,
    U+2113,U+2C60-2C7F,U+A720-A7FF;
}

:root{
  color-scheme: light;
  --bg:#F3F4F8;          /* a touch cool, not warm-grey — reads as "product", not "document" */
  --bg-2:#EAECF3;        /* a second ground step, for the page backdrop behind the topbar */
  --panel:#FFFFFF;
  --panel-2:#F4F5FA;
  --sunk:#ECEEF4;
  --line:#E1E4ED;
  --line-2:#EBEDF4;

  --ink:#14161F;         /* 15.7:1 on bg, 17:1 on panel */
  --ink-2:#43485A;       /* 8.4:1 — still AAA, for body prose */
  --dim:#676D82;         /* 5.1:1 — labels only, never body copy */

  --accent:#4F5FE0;      /* indigo, not navy — the "product" blue every modern SaaS converged on */
  --accent-2:#3D4BC7;
  --accent-3:#7C6CF0;    /* a second stop for gradients */
  --accent-soft:#EBECFC;
  --accent-line:#C7CBF7;
  /* Fixed across both themes — a solid button fill needs a constant contrast
     against white text, which --accent itself does not guarantee (the dark
     theme's --accent is tuned lighter, for text-on-background use, and drops
     to ~2.7:1 with white on top of it). Verified 5.19:1 with #fff. */
  --accent-btn:#4F5FE0;
  --accent-btn-2:#3D4BC7;
  --accent-btn-3:#6455D6;  /* violet gradient partner, 5.51:1 with white — --accent-3 fails at 2.3-4:1 */

  --good:#0F9D63;  --good-soft:#DFF7EC;  --good-line:#B8ECD4;
  --warn:#C2790A;  --warn-soft:#FBEED9;  --warn-line:#F2D49F;
  --bad:#DB3557;   --bad-soft:#FCE4E9;   --bad-line:#F6C1CE;
  --purple:#8B5CF6; --purple-soft:#F0EBFE;
  --teal:#0EA5A0;   --teal-soft:#DFF7F5;
  --amber:#D97706;  --amber-soft:#FCEEDA;
  --rose:#E11D74;   --rose-soft:#FDE6F0;
  /* Text-safe variants: --purple/--teal/--amber/--rose above are tuned for
     borders and soft fills, not small bold text — at 13px bold they land under
     AA's 4.5:1 against a white card. These pass with margin. */
  --purple-text:#7C3AED;
  --teal-text:#0A7873;
  --amber-text:#A85D05;
  --rose-text:#BE165F;

  --code-bg:#12151A;
  --code-fg:#DCE1E8;
  --code-cm:#7C8793;
  --code-kw:#93B9F0;
  --code-st:#C7A98C;
  --code-nu:#C9B26E;

  --sans:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --serif:Charter,"Bitstream Charter","Iowan Old Style",Georgia,ui-serif,"Times New Roman",serif; /* Charter/Iowan on macOS, Georgia everywhere else */
  --mono:ui-monospace,"Cascadia Mono","SF Mono","JetBrains Mono",Menlo,Consolas,monospace;

  --r:10px;
  --r-sm:7px;
  --r-lg:16px;
  /* A layered shadow (tight contact + soft ambient) reads as real elevation;
     a single blurred shadow reads as a grey smudge under a flat box. */
  --shadow-sm:0 1px 2px rgba(20,22,40,.04), 0 1px 1px rgba(20,22,40,.03);
  --shadow:0 1px 2px rgba(20,22,40,.04), 0 6px 16px -8px rgba(30,34,64,.14);
  --shadow-lg:0 2px 4px rgba(20,22,40,.05), 0 16px 36px -12px rgba(30,34,64,.22);
  --shadow-accent:0 10px 26px -12px rgba(79,95,224,.38);
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme: dark;
    --bg:#0F1117;        /* not pure black — pure black + light text causes halation */
    --bg-2:#0B0D12;
    --panel:#181B23;
    --panel-2:#1F222C;
    --sunk:#12141B;
    --line:#2C303C;
    --line-2:#242832;

    --ink:#E7E9F0;       /* not #FFF, for the same reason */
    --ink-2:#B3B8C8;
    --dim:#7C8296;

    --accent:#8B96F5;    /* 8.2:1 on the dark ground */
    --accent-2:#A6AFF8;
    --accent-3:#B79EF7;
    --accent-soft:#232649;
    --accent-line:#3B3F73;

    --good:#3ECB8E;  --good-soft:#132C22;  --good-line:#1E4A36;
    --warn:#E0A63B;  --warn-soft:#2E250F;  --warn-line:#4A3B16;
    --bad:#F0637E;   --bad-soft:#331823;   --bad-line:#552536;
    --purple:#A78BFA; --purple-soft:#241C3D;
    --teal:#2DD4C8;   --teal-soft:#0F2C2A;
    --amber:#F0AD4E;  --amber-soft:#332608;
    --rose:#F472A8;   --rose-soft:#331525;
    --purple-text:#A78BFA;  /* 6.3:1 here; the light-mode value would be 3:1 on this ground */
    --teal-text:#2DD4C8;    /* 9.3:1 here; ditto */
    --amber-text:#F0AD4E;   /* same reasoning as purple/teal above */
    --rose-text:#F472A8;    /* same reasoning as purple/teal above */

    --code-bg:#0C0E13;
    --shadow-sm:0 1px 2px rgba(0,0,0,.35), 0 1px 1px rgba(0,0,0,.3);
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 20px -10px rgba(0,0,0,.7);
    --shadow-lg:0 2px 4px rgba(0,0,0,.45), 0 20px 44px -16px rgba(0,0,0,.85);
    --shadow-accent:0 12px 28px -12px rgba(139,150,245,.35);
  }
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --bg:#0F1117; --bg-2:#0B0D12; --panel:#181B23; --panel-2:#1F222C; --sunk:#12141B;
  --line:#2C303C; --line-2:#242832;
  --ink:#E7E9F0; --ink-2:#B3B8C8; --dim:#7C8296;
  --accent:#8B96F5; --accent-2:#A6AFF8; --accent-3:#B79EF7;
  --accent-soft:#232649; --accent-line:#3B3F73;
  --good:#3ECB8E; --good-soft:#132C22; --good-line:#1E4A36;
  --warn:#E0A63B; --warn-soft:#2E250F; --warn-line:#4A3B16;
  --bad:#F0637E;  --bad-soft:#331823;  --bad-line:#552536;
  --purple:#A78BFA; --purple-soft:#241C3D;
  --teal:#2DD4C8;   --teal-soft:#0F2C2A;
  --amber:#F0AD4E;  --amber-soft:#332608;
  --rose:#F472A8;   --rose-soft:#331525;
  --purple-text:#A78BFA;
  --teal-text:#2DD4C8;
  --amber-text:#F0AD4E;
  --rose-text:#F472A8;
  --code-bg:#0C0E13;
  --shadow-sm:0 1px 2px rgba(0,0,0,.35), 0 1px 1px rgba(0,0,0,.3);
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 20px -10px rgba(0,0,0,.7);
  --shadow-lg:0 2px 4px rgba(0,0,0,.45), 0 20px 44px -16px rgba(0,0,0,.85);
  --shadow-accent:0 12px 28px -12px rgba(139,150,245,.35);
}

*{box-sizing:border-box}
/* An author `display` rule outranks the UA stylesheet's [hidden]{display:none},
   so a "hidden" grid would stay laid out and keep eating clicks. */
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:15px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
code,pre,.mono{font-family:var(--mono)}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--accent);text-underline-offset:2px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
::selection{background:var(--accent-soft);color:var(--ink)}

/* ======================================================== wordmark */
.wordmark{display:inline-flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink)}
.wordmark b{font-size:16px;font-weight:800;letter-spacing:-.02em}
.glyph{width:26px;height:26px;border-radius:8px;position:relative;flex:0 0 auto;
  background:linear-gradient(150deg,var(--accent-btn),var(--accent-btn-3));
  box-shadow:0 2px 6px -1px rgba(79,95,224,.5), inset 0 1px 0 rgba(255,255,255,.25)}
.glyph::before,.glyph::after{content:"";position:absolute;background:#fff;border-radius:1px}
.glyph::before{left:6.5px;right:6.5px;top:12.2px;height:1.7px}
.glyph::after{top:6.5px;bottom:6.5px;left:12.2px;width:1.7px}

/* ======================================================== auth gate */
.gate{position:fixed;inset:0;z-index:100;background:var(--bg);display:grid;place-items:center;
  padding:20px;overflow-y:auto}
.gatebox{width:100%;max-width:380px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r);padding:28px 28px 24px;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.gatehead{margin-bottom:18px}
.gatehead p{margin:9px 0 0;font-size:13.5px;color:var(--dim);line-height:1.55}
.gatebox label{font-size:12px;font-weight:600;color:var(--ink-2);margin:14px 0 5px;display:block}
.gatebox label .opt{font-weight:400;color:var(--dim)}
.gatebox input{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:4px;
  background:var(--bg);font-size:15px}
.gatebox input:focus{border-color:var(--accent)}
.gerr{margin:13px 0 0;font-size:13px;color:var(--bad);background:var(--bad-soft);
  padding:9px 12px;border-radius:4px;line-height:1.45}
.gswap{margin:15px 0 0;font-size:13px;color:var(--dim);text-align:center}
.gswap button{background:none;border:none;color:var(--accent);cursor:pointer;padding:0 0 0 3px;
  text-decoration:underline;text-underline-offset:2px}

/* ======================================================== shell */
.shell{min-height:100vh;display:flex;flex-direction:column;
  background:
    radial-gradient(1100px 520px at 12% -8%, var(--accent-soft) 0%, transparent 60%),
    radial-gradient(900px 460px at 100% 0%, var(--purple-soft) 0%, transparent 55%),
    var(--bg)}
[data-theme="dark"] .shell, :root:not([data-theme="light"]) .shell{
  background:
    radial-gradient(1100px 520px at 12% -8%, color-mix(in srgb, var(--accent-soft) 65%, transparent) 0%, transparent 60%),
    radial-gradient(900px 460px at 100% 0%, color-mix(in srgb, var(--purple-soft) 55%, transparent) 0%, transparent 55%),
    var(--bg)}
.nav{display:flex;gap:2px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{display:flex;align-items:center;gap:6px;padding:7px 13px;border-radius:8px;
  text-decoration:none;color:var(--ink-2);font-size:14px;font-weight:500;white-space:nowrap;
  transition:background .12s,color .12s}
.nav a:hover{background:var(--panel-2);color:var(--ink)}
.nav a.on{background:var(--accent-soft);color:var(--accent);font-weight:600}
.nav .pill{background:linear-gradient(135deg,var(--warn),#e0982f);color:#fff;font-size:10.5px;font-weight:700;padding:1px 6px;
  border-radius:9px;font-family:var(--mono)}
.topright{display:flex;align-items:center;gap:10px;flex:0 0 auto}

/* ================================================ left sidebar layout
   Replaces the horizontal .topbar with a foldable left column. Kept as a
   distinct set of classes (.shell-side, .nav-side, ...) rather than
   repurposing .topbar/.nav in place, so nothing above this block has to
   change meaning out from under it. */
.shell-side{flex-direction:row;align-items:stretch;min-height:100vh}
.sidebar{--side-w:260px;--side-w-folded:64px;
  flex:0 0 auto;width:var(--side-w);display:flex;flex-direction:column;
  background:color-mix(in srgb, var(--panel) 92%, transparent);
  backdrop-filter:saturate(1.5) blur(10px);-webkit-backdrop-filter:saturate(1.5) blur(10px);
  border-right:1px solid var(--line);padding:16px 12px;gap:16px;
  position:sticky;top:0;height:100vh;overflow-y:auto;
  transition:width .2s cubic-bezier(.4,0,.2,1)}
.shell-side.folded .sidebar{width:var(--side-w-folded)}

.main-col{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}

.side-top{display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:0 4px}
.foldbtn{flex:0 0 auto;width:28px;height:28px;font-size:13px}
.foldchev{display:inline-block;transition:transform .2s cubic-bezier(.4,0,.2,1)}
.shell-side.folded .foldchev{transform:rotate(180deg)}
.shell-side.folded .side-top{justify-content:center}
.shell-side.folded .side-top .wordmark{display:none}

.nav-side{flex-direction:column;gap:2px;flex:1 1 auto;overflow-x:visible}
.nav-side a{justify-content:flex-start;position:relative}
.navicon{flex:0 0 auto;width:20px;text-align:center;font-size:16px;font-weight:700;color:var(--dim);
  font-family:var(--mono)}
.nav-side a.on .navicon{color:var(--accent)}
.navlbl{overflow:hidden;white-space:nowrap;transition:opacity .15s ease;margin-left:4px}
.shell-side.folded .navlbl,
.shell-side.folded .kbtn .navlbl,
.shell-side.folded .chip .navlbl{display:none}
.shell-side.folded .nav-side a{justify-content:center;padding:9px 6px}
.shell-side.folded .nav-side a .pill{position:absolute;top:2px;right:2px;
  transform:scale(.8);padding:0 4px}

.side-bottom{display:flex;flex-direction:column;gap:8px;padding-top:8px;
  border-top:1px solid var(--line)}
.shell-side.folded .chip{justify-content:center}

/* Search and the theme toggle live top-right of the content column, not the
   sidebar — kept together since they're the two "utility" controls. */
.topright-bar{display:flex;align-items:center;justify-content:flex-end;gap:10px;
  padding:14px 24px 0}
.topright-bar .kbtn{justify-content:flex-start}
.topright-bar .kbtn kbd{margin-left:auto}

.topbar-mobile{display:none;align-items:center;gap:12px;padding:0 16px;height:52px;
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;
  background:color-mix(in srgb, var(--panel) 90%, transparent);
  backdrop-filter:blur(8px)}

.sidescrim{display:none}

@media (max-width:900px){
  /* Mobile ignores .folded entirely (that's a desktop-only concept) and uses
     its own .side-open toggle instead, so the two states never collide. */
  .sidebar{position:fixed;inset:0 auto 0 0;z-index:30;width:250px !important;
    transform:translateX(-100%);box-shadow:var(--shadow-lg);
    transition:transform .2s cubic-bezier(.4,0,.2,1)}
  .shell-side.side-open .sidebar{transform:translateX(0)}
  .shell-side.folded .navlbl,
  .shell-side.folded .chip .navlbl{display:inline}
  .shell-side.folded .side-top .wordmark{display:inline-flex}
  .shell-side.folded .nav-side a{justify-content:flex-start;padding:7px 13px}
  .shell-side.folded .chip{justify-content:flex-start}
  .foldbtn{display:none}
  .topbar-mobile{display:flex}
  .topright-bar{padding:10px 16px 0}
  .topright-bar .kbtn .navlbl{display:none}
  .topright-bar .kbtn kbd{display:none}
  .sidescrim{display:block;position:fixed;inset:0;background:rgba(16,20,26,.42);z-index:29;
    opacity:0;pointer-events:none;transition:opacity .2s ease}
  .shell-side.side-open .sidescrim{opacity:1;pointer-events:auto}
}
.icon{width:32px;height:32px;border:1px solid var(--line);background:var(--panel);border-radius:8px;
  cursor:pointer;font-size:14px;line-height:1;transition:background .12s,border-color .12s}
.icon:hover{background:var(--panel-2);border-color:var(--accent-line)}
.chip{display:flex;align-items:center;gap:8px}
.av{width:28px;height:28px;border-radius:50%;
  background:linear-gradient(150deg,var(--accent-btn),var(--accent-btn-3));color:#fff;
  display:grid;place-items:center;font-size:12px;font-weight:700;flex:0 0 auto;
  box-shadow:0 2px 5px -1px rgba(79,95,224,.45)}
.chip .nm{font-size:13.5px;font-weight:500;max-width:120px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
main{flex:1;padding:28px 22px 48px;max-width:1280px;width:100%;margin:0 auto}
@media (max-width:600px){main{padding:18px 16px 36px}}
.foot{border-top:1px solid var(--line);padding:16px 22px;color:var(--dim);font-size:12.5px;
  max-width:1280px;width:100%;margin:0 auto}

/* ======================================================== page header */
.ph{margin-bottom:22px}
.ph .eyebrow{font-size:11.5px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;color:var(--dim)}
.ph h1{margin:4px 0 0;font-size:26px;font-weight:700;letter-spacing:-.02em;text-wrap:balance}
.ph p{margin:7px 0 0;color:var(--ink-2);max-width:66ch;font-size:15px}

/* ======================================================== cards */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  box-shadow:var(--shadow-sm)}
.card > h2{margin:0;padding:13px 17px;font-size:12px;font-weight:700;letter-spacing:.07em;
  text-transform:uppercase;color:var(--dim);border-bottom:1px solid var(--line-2);
  display:flex;align-items:center;gap:10px}
.card > h2 .sp{flex:1}
.card > h2 .lt{text-transform:none;letter-spacing:0;font-weight:400;font-size:12px}
.card .bd{padding:17px 19px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(auto-fit,minmax(310px,1fr))}
.g3{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.col{display:flex;flex-direction:column;gap:18px;min-width:0}

/* ======================================================== stat tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;
  background:var(--line-2);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.tile{background:var(--panel);padding:16px 18px}
.tile .n{font-size:28px;font-weight:700;letter-spacing:-.025em;line-height:1.1;
  font-variant-numeric:tabular-nums}
.tile .k{font-size:12px;color:var(--dim);margin-top:3px}
.tile .sub{font-size:12px;color:var(--dim);margin-top:5px}
.tile.accent .n{color:var(--accent)}
.tile.due .n{color:var(--warn)}

/* ======================================================== dashboard hero
   One focal block instead of a wall of equal-weight cards: a progress ring,
   the day's single most useful number, and ONE clear next action. Everything
   the old dashboard also showed (per-pattern bars, activity, verdicts,
   recent runs) still exists below, but demoted into .details — smaller type,
   quieter color, opt-in reading rather than competing for first glance. */
.hero{display:flex;gap:28px;align-items:center;flex-wrap:wrap;position:relative;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 30px;margin-bottom:22px;box-shadow:var(--shadow-lg);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(120deg, var(--accent-soft) 0%, transparent 42%);opacity:.7}
.hero-ring{flex:0 0 auto;position:relative;width:112px;height:112px;z-index:1}
.hero-ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.hero-ring circle{fill:none;stroke-width:9}
.hero-ring .trk{stroke:var(--sunk)}
.hero-ring .val{stroke:url(#ringGrad);stroke-linecap:round;transition:stroke-dashoffset .6s cubic-bezier(.4,0,.2,1)}
.hero-ring .g0{stop-color:var(--accent)}
.hero-ring .g1{stop-color:var(--accent-3)}
.hero-ring .mid{position:absolute;inset:0;display:grid;place-items:center;text-align:center}
.hero-ring .mid b{font-size:23px;font-weight:800;letter-spacing:-.02em;line-height:1;
  font-variant-numeric:tabular-nums;display:block;
  background:linear-gradient(135deg,var(--accent),var(--accent-3));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-ring .mid span{font-size:10.5px;color:var(--dim);text-transform:uppercase;letter-spacing:.06em;margin-top:1px}
.hero-mid{flex:1 1 260px;min-width:0;position:relative;z-index:1}
.hero-mid .eyebrow{font-size:11.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--accent)}
.hero-mid h1{margin:5px 0 0;font-size:25px;font-weight:800;letter-spacing:-.025em;text-wrap:balance}
.hero-mid p{margin:6px 0 0;color:var(--ink-2);font-size:14px;max-width:52ch}
.hero-stats{display:flex;gap:22px;margin-top:16px;flex-wrap:wrap}
.hero-stats div{font-size:12.5px;color:var(--dim);padding-left:12px;border-left:2px solid var(--line)}
.hero-stats b{display:block;font-size:18px;color:var(--ink);font-weight:800;font-variant-numeric:tabular-nums}
.hero-cta{flex:0 0 auto;display:flex;flex-direction:column;gap:9px;min-width:210px;position:relative;z-index:1}
.hero-cta .btn{padding:13px 22px;font-size:14.5px;white-space:nowrap}
.hero-cta .note{font-size:12px;color:var(--dim);text-align:center}
@media (max-width:640px){
  .hero{padding:22px}
  .hero-cta{width:100%}
  .hero-cta .btn{width:100%;text-align:center}
}

/* ======================================================== progress bars */
.prog{display:flex;flex-direction:column;gap:15px}
.prow{display:grid;grid-template-columns:1fr auto;gap:5px 12px;align-items:baseline}
.prow .nm{font-weight:600;font-size:14.5px}
.prow .nm a{color:inherit;text-decoration:none}
.prow .nm a:hover{color:var(--accent)}
.prow .ct{font-family:var(--mono);font-size:12px;color:var(--dim);font-variant-numeric:tabular-nums}
.bar{grid-column:1/-1;height:9px;border-radius:5px;background:var(--sunk);overflow:hidden;display:flex}
.bar i{display:block;height:100%}
.bar i.s{background:var(--good)}
.bar i.a{background:var(--warn)}
.bar i + i{box-shadow:-2px 0 0 var(--panel)}   /* 2px surface gap between segments */
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:4px}
.legend span{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--ink-2)}
.legend i{width:9px;height:9px;border-radius:2px;display:block;flex:0 0 auto}

/* ======================================================== activity strip */
.act{display:flex;gap:3px;align-items:flex-end;height:58px;margin-top:2px}
.act .d{flex:1;min-width:0;background:var(--sunk);border-radius:2px 2px 0 0;position:relative;
  min-height:3px;transition:background .12s}
.act .d[data-n="0"]{background:var(--sunk)}
.act .d.has{background:var(--accent)}
.act .d:hover{background:var(--accent-2)}
.actx{display:flex;justify-content:space-between;font-size:11.5px;color:var(--dim);margin-top:6px}

/* ======================================================== lists */
.rows{display:flex;flex-direction:column}
.row{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:center;
  padding:11px 17px;border-bottom:1px solid var(--line-2);font-size:14px;text-decoration:none;color:inherit;
  transition:background .12s}
.row:last-child{border-bottom:none}
a.row:hover{background:var(--panel-2)}
.row .t{min-width:0}
.row .t b{display:block;font-weight:600;font-size:14.5px}
.row .t span{display:block;font-size:12.5px;color:var(--dim);margin-top:1px}
.row .meta{font-family:var(--mono);font-size:11.5px;color:var(--dim);text-align:right;white-space:nowrap}
.dot{width:9px;height:9px;border-radius:50%;background:var(--sunk);border:1.5px solid var(--line);flex:0 0 auto}
.dot.solved{background:var(--good);border-color:var(--good)}
.dot.attempted{background:var(--warn);border-color:var(--warn)}
.dot.due{background:var(--bad);border-color:var(--bad)}
.tag{font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;
  padding:2.5px 8px;border-radius:20px;background:var(--panel-2);color:var(--ink-2);white-space:nowrap}
.tag.easy{background:var(--good-soft);color:var(--good)}
.tag.medium{background:var(--warn-soft);color:var(--warn)}
.tag.hard{background:var(--bad-soft);color:var(--bad)}
.tag.ok{background:var(--good-soft);color:var(--good)}
.tag.no{background:var(--bad-soft);color:var(--bad)}
.empty{padding:28px 18px;text-align:center;color:var(--dim);font-size:14px}
.empty b{display:block;color:var(--ink-2);font-size:15px;margin-bottom:4px}

/* ======================================================== pattern cards */
/* ===================================== track page: a flat, ordered grid
   Cards render in curriculum order (still driven by PHASES) but with no
   nested group/phase chrome above them — one progress bar at the top, then
   straight into the cards, so the page reads as "pick one" instead of
   "here are three levels of headings before you see a single topic". */
.trackbar{display:flex;align-items:center;gap:16px;margin:0 0 26px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:14px 18px;box-shadow:var(--shadow-sm)}
.trackbar .tb-l{font-size:13.5px;color:var(--dim);white-space:nowrap}
.trackbar .tb-l b{color:var(--ink);font-size:15px;font-variant-numeric:tabular-nums}
.trackbar .bar{flex:1;grid-column:auto;height:8px;margin:0}
.trackbar .tb-r{font-size:15px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;white-space:nowrap}
@media (max-width:640px){
  .trackbar{flex-wrap:wrap}
  .trackbar .bar{order:3;flex-basis:100%}
}

.pcards{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:16px}
.pcard{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:19px 20px;display:flex;flex-direction:column;gap:10px;text-decoration:none;color:inherit;
  box-shadow:var(--shadow-sm);transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.pcard:hover{border-color:var(--accent-line);box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.pcard h3{margin:0;font-size:17px;font-weight:700;letter-spacing:-.01em}
.pcard p{margin:0;font-size:13.5px;color:var(--ink-2);line-height:1.5;flex:1}
.pcard .foot2{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--dim);
  font-family:var(--mono);font-variant-numeric:tabular-nums}

/* Segmented control: the standard pattern for "pick one of a few mutually
   exclusive, same-level views" (iOS list/grid toggle, Linear's view switcher,
   etc). Design splits into "a whole system" vs "one service's code" — two
   genuinely different interviews living in one track — so this lets a reader
   lock onto one lane and filters the same grid in place, instead of a
   labeled section stacked above every run of cards. */
.segctl{display:inline-flex;flex-wrap:wrap;gap:2px;padding:3px;margin:0 0 20px;
  background:var(--panel-2);border:1px solid var(--line);border-radius:999px}
.segctl button{appearance:none;border:0;background:none;cursor:pointer;
  font-family:var(--sans);font-size:13px;font-weight:600;color:var(--ink-2);
  white-space:nowrap;padding:7px 16px;border-radius:999px;
  transition:background .12s ease,color .12s ease}
.segctl button:hover{color:var(--ink)}
.segctl button.on{background:var(--panel);color:var(--ink);box-shadow:var(--shadow-sm)}
@media (max-width:480px){
  .segctl{border-radius:14px}
  .segctl button{border-radius:10px}
}

/* ======================================================== prose */
.prose{font-family:var(--serif);font-size:16px;line-height:1.72;color:var(--ink-2);max-width:68ch}
/* Single-column lesson pages (design/LLD) have no second column competing for
   space, so the 68ch cap just leaves a strip of empty card background instead
   of doing its job. .wide raises it rather than dropping it outright — an
   unbounded line length is its own readability problem on a wide monitor. */
.prose.wide{max-width:105ch}
.prose > :first-child{margin-top:0}
.prose > :last-child{margin-bottom:0}
.prose h3{font-family:var(--sans);font-size:15.5px;font-weight:700;color:var(--ink);margin:24px 0 6px;letter-spacing:-.005em}
.prose p{margin:12px 0}
.prose strong{color:var(--ink);font-weight:700}
.prose em{font-style:italic}
.prose code{font-family:var(--mono);font-size:13px;background:var(--panel-2);padding:1.5px 5px;
  border-radius:3px;color:var(--ink)}
.prose ul{margin:11px 0;padding-left:22px}
.prose li{margin:5px 0}
.prose pre{background:var(--code-bg);color:var(--code-fg);padding:15px 17px;border-radius:4px;
  overflow-x:auto;font-size:13px;line-height:1.66;margin:14px 0;font-family:var(--mono)}
.prose pre code{background:none;padding:0;font-size:inherit;color:inherit}
.prose table{border-collapse:collapse;width:100%;margin:15px 0;font-family:var(--sans);font-size:13.5px}
.prose th{text-align:left;font-size:11px;letter-spacing:.07em;text-transform:uppercase;color:var(--dim);
  font-weight:600;padding:0 12px 8px 0;border-bottom:1px solid var(--line)}
.prose td{padding:9px 12px 9px 0;border-bottom:1px solid var(--line-2);vertical-align:top}
.scroll{overflow-x:auto}

/* ============================================ explanation blocks
   Prose alone turns an LLD walkthrough into a wall of text. These four
   block types exist so the *structure* of an explanation is visible at a
   glance: what is broken vs fixed, what is a warning vs an aside, what
   order the steps happen in, and what the mechanism actually looks like. */

/* --- code blocks, optionally tagged broken/correct via ```java:bad ---- */
.codeblock{position:relative;margin:16px 0}
.codeblock pre{margin:0}
.cb-tag{position:absolute;top:10px;right:12px;z-index:1;font-family:var(--sans);
  font-size:10.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  padding:3px 9px;border-radius:20px}
.cb-tag.bad{background:var(--bad);color:#fff}
.cb-tag.good{background:var(--good);color:#fff}
.codeblock.bad pre{border-left:3px solid var(--bad)}
.codeblock.good pre{border-left:3px solid var(--good)}

/* --- guess-before-reveal blocks: ~~~guess ... ~~~code ... ~~~explain ~~~
   Active recall instead of passive reading — the explanation is a real
   commitment (a click), not something the eye slides past on the way down
   the page, so looking at the answer means you've actually stopped to try. */
.guessblock{margin:18px 0;border:1px solid var(--line);border-radius:var(--r);
  background:var(--panel);overflow:hidden}
.guessblock .gb-q{padding:13px 16px;font-family:var(--sans);font-size:13.5px;
  font-weight:700;color:var(--ink);background:var(--panel-2);
  border-bottom:1px solid var(--line)}
.guessblock .gb-q::before{content:"◆ ";color:var(--accent)}
.guessblock .gb-code{margin:0;border-radius:0}
.guessblock .gb-reveal{display:block;width:100%;text-align:center;cursor:pointer;
  appearance:none;border:none;border-top:1px dashed var(--line-2);
  background:var(--accent-soft);color:var(--accent);
  font-family:var(--sans);font-size:13px;font-weight:700;padding:11px 16px;
  transition:background .12s ease}
.guessblock .gb-reveal:hover{background:var(--accent-line)}
.guessblock .gb-reveal:disabled{cursor:default;opacity:.55;background:var(--panel-2);color:var(--dim)}
.guessblock.revealed .gb-code{border-left:3px solid var(--bad)}
.guessblock .gb-explain{padding:14px 16px;border-top:1px solid var(--line-2);
  background:var(--good-soft)}
.guessblock .gb-explain > :first-child{margin-top:0}
.guessblock .gb-explain > :last-child{margin-bottom:0}

/* --- callouts: :::note / :::warn / :::key / :::race ------------------- */
.callout{--co:var(--accent); --co-soft:var(--accent-soft);
  margin:16px 0;padding:13px 16px;border-radius:var(--r-sm);
  background:var(--co-soft);border-left:3px solid var(--co)}
.callout.warn{--co:var(--warn); --co-soft:var(--warn-soft)}
.callout.key {--co:var(--good); --co-soft:var(--good-soft)}
.callout.race{--co:var(--bad);  --co-soft:var(--bad-soft)}
.callout .co-h{font-family:var(--sans);font-size:12px;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;color:var(--co);margin-bottom:6px}
.callout .co-b > :first-child{margin-top:0}
.callout .co-b > :last-child{margin-bottom:0}
.callout .co-b{font-size:14.5px}

/* --- numbered walkthrough steps: @@ 1 | Title ------------------------- */
.wstep{display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;
  margin:18px 0;align-items:start}
.wstep .ws-n{width:28px;height:28px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(140deg,var(--accent-btn),var(--accent-btn-3));color:#fff;
  display:grid;place-items:center;font-family:var(--sans);font-size:13px;font-weight:700}
.wstep .ws-t{font-family:var(--sans);font-size:15px;font-weight:700;color:var(--ink);
  margin-bottom:4px}
.wstep .ws-c > :last-child{margin-bottom:0}

/* --- figures: inline SVG diagrams ------------------------------------ */
.fig{margin:20px 0;padding:16px;background:var(--panel-2);border:1px solid var(--line-2);
  border-radius:var(--r-sm);text-align:center;color:var(--ink-2)}
.fig svg{max-width:100%;height:auto}
.fig figcaption{margin-top:10px;font-family:var(--sans);font-size:12.5px;color:var(--dim);
  text-align:left}
/* Mermaid replaces .mermaid's text content with its own <svg> once run() has
   fired; until then the raw diagram source would otherwise flash as visible
   plain text, so it's hidden until Mermaid stamps the node processed. */
.fig-mermaid .mermaid{font-size:0;color:transparent}
.fig-mermaid .mermaid[data-processed]{font-size:inherit;color:inherit}
.fig-mermaid .mermaid svg{max-width:100%;height:auto}

/* Semantic roles for diagram elements. Diagram SVGs must use these classes
   rather than literal hex, so a figure re-themes with the palette instead of
   rendering light-theme ink on the dark ground. `currentColor` stays the
   neutral default via .fig's own color. */
.fig .d-accent{color:var(--accent)}
.fig .d-good  {color:var(--good)}
.fig .d-warn  {color:var(--warn)}
.fig .d-bad   {color:var(--bad)}
.fig .d-dim   {color:var(--dim)}
.fig [class*="d-"]{stroke:currentColor}
.fig text[class*="d-"]{fill:currentColor;stroke:none}
.fig .d-fill{fill:currentColor;stroke:none}
.fig .d-soft{opacity:.26}
.fig .d-ghost{opacity:.45}

/* Respect a reader who has asked the OS for less motion: freeze every
   diagram animation rather than hiding the diagram itself. */
@media (prefers-reduced-motion: reduce){
  .fig svg *{animation-play-state:paused !important}
  .fig svg animate,.fig svg animateMotion,.fig svg animateTransform{display:none}
}

/* ======================================================== buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;font-size:14px;
  font-weight:600;padding:8px 15px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:var(--panel);color:var(--ink);cursor:pointer;text-decoration:none;
  transition:background .12s,border-color .12s,transform .12s,box-shadow .12s}
.btn:hover:not(:disabled){background:var(--panel-2)}
.btn:active:not(:disabled){transform:translateY(1px)}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn.go{background:linear-gradient(135deg,var(--accent-btn),var(--accent-btn-2));border-color:transparent;
  color:#fff;box-shadow:var(--shadow-accent)}
.btn.go:hover:not(:disabled){filter:brightness(1.08);box-shadow:0 14px 30px -12px rgba(79,95,224,.5)}
.btn.ghost{border-style:dashed;color:var(--dim)}
.btn.danger{color:var(--bad);border-color:var(--bad)}
.btn.danger:hover:not(:disabled){background:var(--bad-soft)}
.btn.wide{width:100%;margin-top:20px;padding:11px}
.btn.sm{font-size:13px;padding:6px 11px}

/* ======================================================== problem page
   The design/behavioral lesson page (pageLesson) keeps .work/.rail — a
   permanent sidebar makes sense there, since a section has 5-10 items and no
   competing split-pane editor. A CODING problem is .work-full instead: no
   permanent sidebar, because a pattern can have 15+ problems and every pixel
   of width there was pixel the problem text and the editor both needed. */
.work{display:grid;grid-template-columns:214px minmax(0,1fr);gap:20px;align-items:start}
@media (max-width:1000px){.work{grid-template-columns:minmax(0,1fr)}}
.rail{position:sticky;top:76px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden}
@media (max-width:1000px){.rail{position:static}}
.rail h2{margin:0;padding:11px 14px;font-size:11.5px;font-weight:700;letter-spacing:.07em;
  text-transform:uppercase;color:var(--dim);border-bottom:1px solid var(--line-2)}
.rail a{display:grid;grid-template-columns:auto 1fr;gap:9px;align-items:center;padding:8px 14px;
  font-size:13.5px;color:var(--ink-2);text-decoration:none;border-left:2px solid transparent}
.rail a:hover{background:var(--panel-2);color:var(--ink)}
.rail a.on{background:var(--accent-soft);color:var(--ink);border-left-color:var(--accent);font-weight:600}

/* A system-design lesson's second .two column is a slim jump nav, not a
   second reading column or an editor — narrow-r overrides .two's roughly
   1:1 split down to a sidebar width, and drops to a single column early
   since a jump nav is useless once it can't stay in view alongside the text. */
.two.narrow-r{grid-template-columns:minmax(0,1fr) 200px}
@media (max-width:1320px){.two.narrow-r{grid-template-columns:minmax(0,1fr)}}
.onpage{position:sticky;top:76px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r);overflow:hidden}
@media (max-width:1320px){.onpage{display:none}}
.onpage h2{margin:0;padding:11px 14px;font-size:11px;font-weight:700;letter-spacing:.07em;
  text-transform:uppercase;color:var(--dim);border-bottom:1px solid var(--line-2)}
.onpage a{display:block;padding:8px 14px;font-size:13px;color:var(--dim);text-decoration:none;
  border-left:2px solid transparent;line-height:1.35}
.onpage a:hover{background:var(--panel-2);color:var(--ink)}
.onpage a.on{background:var(--accent-soft);color:var(--ink);border-left-color:var(--accent);font-weight:600}

.work-full{width:100%}
.phead .crumb .cx{font-family:var(--mono);color:var(--dim);font-weight:500;
  letter-spacing:0;text-transform:none;font-size:11px;margin-left:9px}
.phead .sp2{flex:1 1 auto;min-width:12px}
.pnav{display:flex;gap:6px;flex:0 0 auto}
.pnav a,.pnav .off{font-size:12.5px;font-weight:600;padding:5px 11px;border-radius:20px;
  text-decoration:none;white-space:nowrap}
.pnav a{color:var(--ink-2);background:var(--panel-2);border:1px solid var(--line)}
.pnav a:hover{color:var(--ink);border-color:var(--accent-line);background:var(--accent-soft)}
.pnav .off{color:var(--dim);opacity:.45;background:var(--panel-2);border:1px solid var(--line)}
@media (max-width:640px){.phead .sp2{flex-basis:100%;min-width:0}}

/* A coding problem gets a fixed-height, drag-resizable split — like an IDE,
   not a document. `.two` starts as a plain grid (JS never touched it) and
   `initSplit()` promotes it to explicit pixel widths/heights the moment a
   drag starts, so nothing here breaks the design/behavioral lesson pages,
   which reuse `.two` but never get a divider. */
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.02fr);gap:18px;align-items:start}
@media (max-width:1180px){.two{grid-template-columns:minmax(0,1fr)}}
/* The LEFT column (problem, editorial, samples, notes) reads like a normal
   page and scrolls with the whole page — no inner scrollbar, no fixed height,
   nothing gets clipped. Only the RIGHT column (editor + result) is a fixed,
   sticky-height IDE pane, because that one genuinely benefits from staying in
   place while you scroll the problem text above it. This was previously ONE
   fixed-height row with both columns scrolling internally, which is what cut
   card content off with no visible way to tell more was there. */
.two.split{gap:0;align-items:start;
  grid-template-columns:minmax(0,1fr) 9px minmax(0,1.02fr)}
@media (max-width:1180px){.two.split{display:flex;flex-direction:column;height:auto;min-height:0}}
.two.split > .col:first-child{min-width:0;padding-right:14px}
.two.split > .rcol{position:sticky;top:76px;height:calc(100vh - 96px);min-height:420px}
@media (max-width:1180px){
  .two.split > .rcol{position:static;height:60vh;min-height:420px}
}
/* Must outrank ".two.split > .rcol" above (3 classes vs. 2) or the sticky
   height/position there wins the cascade and the fullscreen toggle changes
   nothing — exactly the bug this selector fixes. Matching the parent
   combinator keeps equal specificity while coming later in the file, so this
   wins; !important would work too but is unnecessary once specificity matches. */
.two.split > .rcol.focus{position:fixed;inset:0;top:0;height:100vh}

.vdrag{width:9px;cursor:col-resize;position:relative;z-index:2}
.vdrag::after{content:"";position:absolute;left:4px;top:0;bottom:0;width:1px;background:var(--line)}
.vdrag:hover::after,.vdrag.active::after{background:var(--accent);width:2px;left:3.5px}
@media (max-width:1180px){.vdrag{display:none}}

/* .rcol itself never scrolls — its children manage their own: the editor
   pane (.edwrap) scrolls the growing textarea, the result card scrolls its
   own overflow once it runs out of the space .rcol's fixed height gives it.
   A scrollbar on .rcol too would nest two independent scroll regions inside
   one box, which reads as broken. */
.rcol{display:flex;flex-direction:column;min-height:0;overflow:hidden}
.rcol .card{display:flex;flex-direction:column;min-height:0}
.editor-card{flex:1 1 auto}
.hdrag{flex:0 0 auto;height:9px;margin:-4px 0;cursor:row-resize;position:relative;z-index:2}
.hdrag::after{content:"";position:absolute;top:4px;left:0;right:0;height:1px;background:var(--line-2)}
.hdrag:hover::after,.hdrag.active::after{background:var(--accent);height:2px;top:3.5px}
/* Grows with whatever space the editor-card's drag-set height leaves behind,
   instead of a fixed 46% that clipped a case list even when there was room
   to spare. min-height keeps a few result rows visible before it forces a
   scrollbar; the drag handle above is still what actually controls the split. */
.result-card{flex:1 1 auto;min-height:160px;overflow-y:auto}
@media (max-width:1180px){
  .hdrag{display:none}
  .result-card{max-height:none;flex:0 0 auto}
}

/* Full-screen editor mode. .rcol leaves the grid entirely and becomes a fixed
   overlay covering the viewport — the direct answer to "I can't code in a box
   this small." Everything inside (editor, result, drag handles) is unchanged;
   only .rcol's own position/size changes, so leaving focus mode drops back
   into whatever split/scroll state existed before. */
.rcol.focus{position:fixed;inset:0;z-index:60;height:100vh;background:var(--bg);
  padding:14px;box-shadow:none}
body.no-scroll{overflow:hidden}
#focusToggle{font-size:16px}
.phead{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;margin-bottom:16px}
.phead h1{margin:0;font-size:22px;font-weight:700;letter-spacing:-.02em;flex:1 1 240px;min-width:0}
.phead .crumb{width:100%;display:flex;align-items:center;font-size:11.5px;font-weight:600;
  letter-spacing:.09em;text-transform:uppercase;color:var(--dim)}

/* Names the exact attribute from Agoda's own rubric a section maps to, so
   working through a problem doubles as a walk through what's being graded. */
.attr-tag{font-family:var(--sans);font-size:10.5px;font-weight:700;
  letter-spacing:.05em;text-transform:uppercase;color:var(--accent);
  background:var(--accent-soft);border:1px solid var(--accent-line);
  padding:3px 10px;border-radius:999px;white-space:nowrap}

/* reveals */
.reveal{border-top:1px solid var(--line-2)}
.reveal:first-child{border-top:none}
.reveal > button{width:100%;text-align:left;background:none;border:none;cursor:pointer;
  padding:13px 18px;display:flex;align-items:center;gap:10px;font-size:14.5px;font-weight:600}
.reveal > button:hover{background:var(--panel-2)}
.reveal > button .tw{font-size:9px;color:var(--dim);transition:transform .15s;width:9px;flex:0 0 auto}
.reveal > button.open .tw{transform:rotate(90deg)}
.reveal > button .hintx{margin-left:auto;font-size:11px;font-weight:500;color:var(--dim);
  text-transform:uppercase;letter-spacing:.07em}
.rbody{padding:0 18px 18px;display:none}
.rbody.show{display:block}
.saybox{border-left:3px solid var(--accent);padding:4px 0 4px 16px;font-family:var(--serif);
  font-size:16px;line-height:1.7;color:var(--ink-2);max-width:64ch}
.saybox.wide{max-width:92ch}
.hint{border-left:3px solid var(--warn);padding:3px 0 3px 15px;margin-top:16px}
.hint .k{font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--warn)}
.hint button{background:none;border:none;color:var(--warn);cursor:pointer;padding:0;
  text-decoration:underline;text-underline-offset:2px;font-size:14px}
.hint p{margin:4px 0 0;font-size:14px;font-family:var(--serif);line-height:1.6}

/* samples */
.io{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-2);
  border:1px solid var(--line-2);border-radius:4px;overflow:hidden}
@media (max-width:520px){.io{grid-template-columns:1fr}}
.io > div{background:var(--panel);padding:10px 12px;min-width:0}
.io .k{font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:var(--dim);margin-bottom:5px}
.io pre{margin:0;font-family:var(--mono);font-size:12.5px;white-space:pre-wrap;
  word-break:break-word;color:var(--ink)}
.samples{display:flex;flex-direction:column;gap:10px}

/* ======================================================== editor */
.edbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:10px 12px;
  background:var(--panel-2);border-bottom:1px solid var(--line-2)}
.edbar select{padding:6px 9px;border:1px solid var(--line);border-radius:4px;
  background:var(--panel);font-size:13.5px}

/* Practice timer — a 30-minute rehearsal clock for Agoda's own per-problem
   budget, not a submission deadline. Neutral until the last five minutes
   (amber), sharper in the last minute (red), matching how the pressure of
   a real round actually escalates rather than being flat the whole time. */
.practimer{display:flex;align-items:center;gap:6px;padding:5px 6px 5px 10px;
  border:1px solid var(--line);border-radius:20px;background:var(--panel);
  font-family:var(--mono);font-size:13px;font-variant-numeric:tabular-nums;
  color:var(--ink-2)}
.practimer .pt-icon{font-size:12px;opacity:.7}
.practimer .pt-time{min-width:42px;text-align:center;font-weight:700;color:var(--ink)}
.practimer.warn{border-color:var(--warn-line);background:var(--warn-soft)}
.practimer.warn .pt-time{color:var(--warn)}
.practimer.crit{border-color:var(--bad-line);background:var(--bad-soft)}
.practimer.crit .pt-time{color:var(--bad)}
.practimer .pt-btn{appearance:none;border:none;background:none;cursor:pointer;
  width:20px;height:20px;border-radius:50%;font-size:11px;line-height:1;
  color:inherit;display:grid;place-items:center}
.practimer .pt-btn:hover{background:var(--panel-2)}

/* The editor pane (.edwrap) fills whatever height the split gives it (see
   .editor-card above) and is itself the scroll container — the textarea still
   grows to fit its content (JS sets its height in paint()), same as before,
   but now that growth happens inside a box with a fixed height and its own
   scrollbar instead of growing the whole page. The highlight layer sits
   underneath with identical metrics; every font/size/padding value here must
   match .ed exactly or the two drift apart as you type. */
.edwrap{display:grid;grid-template-columns:auto minmax(0,1fr);background:var(--code-bg);
  font-family:var(--mono);font-size:13px;line-height:1.7;
  flex:1 1 auto;min-height:0;overflow:auto;align-content:start}
.gutter{padding:15px 10px 15px 14px;color:var(--code-cm);text-align:right;user-select:none;
  white-space:pre;overflow:hidden;font-variant-numeric:tabular-nums;
  border-right:1px solid rgba(127,140,160,.18)}
.edstack{position:relative;min-width:0}
.edhl,.ed{margin:0;padding:15px 16px;font-family:inherit;font-size:inherit;line-height:inherit;
  white-space:pre;tab-size:4;border:0;letter-spacing:normal}
.edhl{position:absolute;inset:0;pointer-events:none;color:var(--code-fg);overflow:hidden}
.ed{position:relative;display:block;width:100%;min-height:100%;resize:none;
  background:transparent;color:transparent;caret-color:var(--code-fg);outline:none;
  overflow-x:auto;overflow-y:hidden}
.ed::selection{background:rgba(143,180,242,.32);color:transparent}
.edhl .kw{color:var(--code-kw)}
.edhl .cm{color:var(--code-cm);font-style:italic}
.edhl .st{color:var(--code-st)}
.edhl .nu{color:var(--code-nu)}
.edfoot{padding:7px 14px;font-family:var(--mono);font-size:11.5px;color:var(--dim);
  border-top:1px solid var(--line-2);background:var(--panel)}

/* ======================================================== results */
.vb{display:flex;flex-wrap:wrap;gap:9px 16px;align-items:center;padding:12px 17px;
  border-bottom:1px solid var(--line-2)}
.vb.ok{background:var(--good-soft)} .vb.ok .big{color:var(--good)}
.vb.bad{background:var(--bad-soft)} .vb.bad .big{color:var(--bad)}
.big{font-size:15px;font-weight:700}
.mt{font-family:var(--mono);font-size:12px;color:var(--dim);font-variant-numeric:tabular-nums}
.cs{display:flex;flex-direction:column}
.c1{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;
  padding:9px 17px;border-bottom:1px solid var(--line-2);font-size:13.5px}
.c1:last-child{border-bottom:none}
.tk{font-family:var(--mono);font-size:10.5px;font-weight:700;letter-spacing:.04em}
.tk.p{color:var(--good)} .tk.f{color:var(--bad)}
.det{grid-column:1/-1;margin-top:7px}
pre.err{margin:0;background:var(--code-bg);color:var(--code-st);padding:12px 14px;border-radius:4px;
  font-family:var(--mono);font-size:12px;white-space:pre-wrap;overflow-x:auto;line-height:1.55}
.grade{display:flex;flex-wrap:wrap;gap:6px;align-items:center;padding:13px 17px}
.grade .q{font-size:13.5px;color:var(--ink-2);margin-right:5px}
.gb{width:34px;height:32px;border-radius:4px;border:1px solid var(--line);background:var(--panel);
  cursor:pointer;font-family:var(--mono);font-size:13px}
.gb:hover{border-color:var(--accent);color:var(--accent)}

/* ======================================================== notes */
.note{width:100%;min-height:78px;resize:vertical;padding:10px 12px;border:1px solid var(--line);
  border-radius:4px;background:var(--bg);font-size:14px;line-height:1.55;font-family:var(--sans)}
.nl{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.ni{display:grid;grid-template-columns:1fr auto;gap:10px;padding:10px 12px;background:var(--bg);
  border:1px solid var(--line-2);border-radius:4px;font-size:14px;color:var(--ink-2);
  white-space:pre-wrap;word-break:break-word}
.ni time{font-family:var(--mono);font-size:10.5px;color:var(--dim);white-space:nowrap}
.ni button{background:none;border:none;color:var(--dim);cursor:pointer;font-size:15px;line-height:1;padding:0}
.ni button:hover{color:var(--bad)}

/* ======================================================== visualizer */
.viz{--cw:44px;--gap:7px}
.vstage{padding:32px 17px 12px;overflow-x:auto}
.vrow{position:relative;width:max-content;min-width:100%}
.vrow + .vrow{margin-top:32px}
.vlabel{font-size:10.5px;font-weight:600;letter-spacing:.09em;text-transform:uppercase;
  color:var(--dim);margin-bottom:6px}
.vcells{display:flex;gap:var(--gap)}
.vcell{width:var(--cw);height:var(--cw);flex:0 0 var(--cw);display:grid;place-items:center;
  border:1px solid var(--line);border-radius:4px;background:var(--panel);font-family:var(--mono);
  font-size:13.5px;font-weight:600;font-variant-numeric:tabular-nums;color:var(--ink);
  transition:background .22s,color .22s,border-color .22s,opacity .22s}
.vcell.dead{opacity:.32;border-style:dashed;background:transparent}
.vcell.hit{background:var(--warn);border-color:var(--warn);color:#fff}
[data-theme="dark"] .vcell.hit{color:#1A1305}
/* .justhit re-triggers on every step where a cell is newly flagged hit (JS
   removes/re-adds the class), so the eye catches the exact moment something
   is found or matched instead of just seeing a static warm colour appear. */
.vcell.justhit{animation:vpop .5s cubic-bezier(.3,1.6,.4,1)}
@keyframes vpop{0%{transform:scale(1)}35%{transform:scale(1.22)}100%{transform:scale(1)}}
@media (prefers-reduced-motion:reduce){.vcell.justhit{animation:none}}
.vcell.p-l,.vcell.p-left,.vcell.p-i,.vcell.p-lo,.vcell.p-read{
  background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.vcell.p-r,.vcell.p-right,.vcell.p-j,.vcell.p-hi,.vcell.p-write{
  background:var(--bad-soft);border-color:var(--bad);color:var(--bad)}
.vcell.p-mid{background:var(--panel-2);border-color:var(--dim)}
.vidx{display:flex;gap:var(--gap);margin-top:5px}
.vidx span{width:var(--cw);flex:0 0 var(--cw);text-align:center;font-family:var(--mono);
  font-size:10.5px;color:var(--dim)}
.vcar{position:absolute;left:0;width:var(--cw);text-align:center;font-family:var(--mono);
  font-size:11px;font-weight:700;top:-26px;transition:transform .3s cubic-bezier(.4,1.2,.5,1)}
.vcar b{display:block;line-height:1.05}
.vcar.c0{color:var(--accent)}
.vcar.c1{color:var(--bad);top:auto;bottom:-28px}
.vcar.c2{color:var(--dim)}
@media (prefers-reduced-motion:reduce){.vcar{transition:none}}
.vstk{display:flex;gap:6px;align-items:center;padding:12px 17px 0;flex-wrap:wrap}
.vstk .k{font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--dim)}
.vstk i{font-style:normal;font-family:var(--mono);font-size:12.5px;padding:3px 9px;border-radius:3px;
  background:var(--accent-soft);color:var(--accent)}
.vstk em{font-style:normal;color:var(--dim);font-size:12.5px}
.vnote{padding:15px 17px;border-top:1px solid var(--line-2);margin-top:26px;
  display:flex;flex-wrap:wrap;gap:9px 16px;align-items:baseline}
.vnote p{margin:0;font-family:var(--serif);font-size:15px;line-height:1.6;color:var(--ink-2);
  flex:1 1 260px;min-width:0;max-width:62ch}
/* .fresh re-triggers on every step (JS removes/re-adds it), so each new
   explanation visibly arrives instead of jump-cutting to the next sentence —
   the same "notice the change" goal as the cell pop, applied to the prose. */
.vnote p.fresh{animation:vnotein .32s ease}
@keyframes vnotein{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){.vnote p.fresh{animation:none}}
.vout{font-family:var(--mono);font-size:12.5px;color:var(--accent);background:var(--accent-soft);
  padding:3px 10px;border-radius:3px;white-space:nowrap}
.vbar{display:flex;flex-wrap:wrap;gap:7px;align-items:center;padding:0 17px 16px}
.vcount{margin-left:auto;font-family:var(--mono);font-size:11.5px;color:var(--dim);
  font-variant-numeric:tabular-nums}

/* ======================================================== account */
.kv{display:grid;grid-template-columns:auto 1fr;gap:9px 20px;font-size:14px}
.kv dt{color:var(--dim)}
.kv dd{margin:0;font-weight:500}
.sesh{display:grid;grid-template-columns:1fr auto;gap:10px;padding:11px 17px;
  border-bottom:1px solid var(--line-2);font-size:13.5px}
.sesh:last-child{border-bottom:none}
.sesh .ua{color:var(--dim);font-size:12.5px;margin-top:2px;word-break:break-word}

/* ======================================================== toast */
.toast{position:fixed;left:50%;bottom:20px;transform:translateX(-50%) translateY(90px);
  background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:5px;font-size:14px;
  z-index:200;transition:transform .22s;pointer-events:none;max-width:92vw;text-align:center;
  box-shadow:var(--shadow)}
.toast.up{transform:translateX(-50%) translateY(0)}
@media (prefers-reduced-motion:reduce){.toast{transition:none}}

/* ================= search button + command palette ================= */
.kbtn{display:flex;align-items:center;gap:8px;padding:6px 10px;border:1px solid var(--line);
  border-radius:4px;background:var(--bg);color:var(--dim);cursor:pointer;font-size:13.5px}
.kbtn:hover{background:var(--panel-2);color:var(--ink)}
.kbtn kbd{font-family:var(--mono);font-size:10.5px;padding:1px 5px;border:1px solid var(--line);
  border-bottom-width:2px;border-radius:3px;background:var(--panel);color:var(--dim)}

.pal{position:fixed;inset:0;z-index:150;background:rgba(16,20,26,.42);
  display:grid;place-items:start center;padding:12vh 16px 16px;backdrop-filter:blur(2px)}
[data-theme="dark"] .pal{background:rgba(0,0,0,.6)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .pal{background:rgba(0,0,0,.6)}}
.palbox{width:100%;max-width:620px;background:var(--panel);border:1px solid var(--line);
  border-radius:8px;overflow:hidden;box-shadow:0 24px 60px -20px rgba(0,0,0,.45)}
.palbox input{width:100%;border:0;border-bottom:1px solid var(--line-2);padding:16px 18px;
  font-size:16px;background:transparent;outline:none}
.palbox input::placeholder{color:var(--dim)}
.palhits{max-height:min(52vh,420px);overflow-y:auto}
.palrow{display:grid;grid-template-columns:auto 1fr auto;gap:11px;align-items:center;
  padding:9px 18px;cursor:pointer;border-left:2px solid transparent}
.palrow[aria-selected="true"]{background:var(--accent-soft);border-left-color:var(--accent)}
.palrow .ttl{min-width:0;font-size:14.5px}
.palrow .ttl b{font-weight:600}
.palrow .ttl mark{background:transparent;color:var(--accent);font-weight:700;padding:0}
.palrow .sub{display:block;font-size:12px;color:var(--dim);margin-top:1px}
.palrow .kind{font-size:10px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;
  padding:2px 6px;border-radius:3px;background:var(--panel-2);color:var(--dim);white-space:nowrap}
.palfoot{display:flex;gap:14px;align-items:center;padding:9px 18px;border-top:1px solid var(--line-2);
  background:var(--panel-2);font-size:11.5px;color:var(--dim)}
.palfoot .sp{flex:1}
.palfoot kbd{font-family:var(--mono);font-size:10px;padding:1px 4px;border:1px solid var(--line);
  border-radius:3px;background:var(--panel);margin-right:3px}
.palempty{padding:26px 18px;text-align:center;color:var(--dim);font-size:14px}

/* ================= filter bar ================= */
.filt{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:16px}
.filt input{flex:1 1 220px;min-width:0;padding:8px 12px;border:1px solid var(--line);
  border-radius:4px;background:var(--panel);font-size:14px}
.filt input:focus{border-color:var(--accent);outline:none}
.chip2{padding:6px 12px;border:1px solid var(--line);border-radius:20px;background:var(--panel);
  color:var(--ink-2);cursor:pointer;font-size:13px;white-space:nowrap}
.chip2:hover{background:var(--panel-2)}
.chip2[aria-pressed="true"]{background:var(--accent-soft);border-color:var(--accent);
  color:var(--accent);font-weight:600}
.filtcount{font-size:13px;color:var(--dim);margin-left:auto;white-space:nowrap}
.co-select{padding:6px 10px;border:1px solid var(--line);border-radius:20px;background:var(--panel);
  color:var(--ink-2);cursor:pointer;font-size:13px;font-family:var(--sans);max-width:180px}
.co-select:focus{border-color:var(--accent);outline:none}

/* ================================================ tracks (dashboard) */
.tracks{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px;
  margin-top:20px;align-items:stretch}
/* At tablet-portrait widths, minmax(250px,1fr) x 3 + gaps is wider than the
   viewport, so auto-fit silently drops to 2-per-row and strands the third
   card alone on its own line — reading as "off"/uneven even though nothing
   is actually broken. Force all three onto one row through that range,
   letting them get narrower rather than wrapping unevenly. */
@media (max-width:900px) and (min-width:641px){
  .tracks{grid-template-columns:repeat(3,minmax(0,1fr))}
}
.tcard{--tc:var(--accent); --tc-soft:var(--accent-soft); --tc-2:var(--accent-3);
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r);
  padding:18px 19px;display:flex;flex-direction:column;gap:10px;text-decoration:none;color:inherit;
  box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
  transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.tcard::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--tc),color-mix(in srgb, var(--tc) 40%, transparent))}
.tcard:hover{border-color:var(--tc);box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.tcard .thead{display:flex;align-items:center;gap:14px}
.tcard .tring{flex:0 0 auto;position:relative;width:58px;height:58px}
.tcard .tring svg{width:100%;height:100%;transform:rotate(-90deg)}
.tcard .tring circle{fill:none;stroke-width:6}
.tcard .tring .trk{stroke:var(--sunk)}
.tcard .tring .val{stroke-linecap:round;transition:stroke-dashoffset .5s ease}
.tcard .tring .g0{stop-color:var(--tc)}
.tcard .tring .g1{stop-color:var(--tc-2, var(--tc))}
.tcard .tring .mid{position:absolute;inset:0;display:grid;place-items:center}
.tcard .tring .mid b{font-size:13px;font-weight:800;letter-spacing:-.01em;
  font-variant-numeric:tabular-nums;color:var(--tc-text, var(--tc))}
.tcard .th{font-size:15.5px;font-weight:700;letter-spacing:-.01em}
.tcard p{margin:0;font-size:13px;color:var(--ink-2);line-height:1.5;flex:1}
.tcard .foot2{display:block;margin-top:3px;font-size:12px;color:var(--dim);font-family:var(--mono);
  font-variant-numeric:tabular-nums}
.tcard.t-design{--tc:var(--purple); --tc-soft:var(--purple-soft); --tc-2:#B294F9; --tc-text:var(--purple-text)}
.tcard.t-ai{--tc:var(--amber); --tc-soft:var(--amber-soft); --tc-2:#F5C078; --tc-text:var(--amber-text)}
.tcard.t-fde{--tc:var(--rose); --tc-soft:var(--rose-soft); --tc-2:#F58FBB; --tc-text:var(--rose-text)}
.tcard.t-behavioral{--tc:var(--teal); --tc-soft:var(--teal-soft); --tc-2:#4FE0D6; --tc-text:var(--teal-text)}

/* ===================================== lesson experience (design + AI + bhv)
   A guided path, not a stack of prose cards: a header band, a numbered
   progress spine that tracks reading position, stepped content sections, and
   an interactive self-check built from the checklist. */
.lhead{background:linear-gradient(135deg,var(--accent-soft),transparent);
  border-bottom:1px solid var(--line);padding:32px 0 26px;margin:-4px 0 0}
.lh-in{max-width:1180px;margin:0 auto;padding:0 4px}
.lh-eyebrow a{font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--accent);text-decoration:none}
.lh-eyebrow a:hover{text-decoration:underline}
.lhead h1{font-size:28px;margin:8px 0 12px;letter-spacing:-.02em;max-width:24ch}
.lh-chips{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.lh-chips .sp2{flex:1 1 auto;min-width:8px}
.lh-chips .pnav{display:flex;gap:6px;align-items:center}
.lh-chips .pnav .cx{font-family:var(--mono);font-size:11px;color:var(--dim);padding:0 4px}

/* Company tags — sourced from public interview-experience write-ups, shown
   as a plain-text signal of "this or a close variant has come up recently",
   never a guarantee. Text-only chips, no logos, so nothing here implies an
   endorsement or affiliation with the named company. Kept deliberately small
   — a lesson can carry 5-9 of these, so each one has to stay a quiet, low-
   profile label rather than compete with the page's actual chips (difficulty,
   status). */
.co-tags{display:inline-flex;align-items:center;gap:3px;flex-wrap:wrap}
.co-lbl{font-family:var(--sans);font-size:8.5px;font-weight:700;letter-spacing:.05em;
  text-transform:uppercase;color:var(--dim);margin-right:1px}
.co-chip{font-family:var(--sans);font-size:9.5px;font-weight:600;color:var(--dim);
  background:transparent;border:1px solid var(--line);border-radius:999px;
  padding:1px 6px;white-space:nowrap;line-height:1.5}
.co-chip.more{font-weight:700}
.row .t span.co-tags.row-co{display:inline-flex;margin-top:3px}
@media (max-width:640px){.row .co-tags.row-co{display:none}}

.lbody{max-width:1180px;margin:0 auto;padding:26px 4px 72px;display:grid;
  grid-template-columns:190px minmax(0,1fr);gap:28px;align-items:start}
.lesson-bhv .lbody{grid-template-columns:190px minmax(0,1fr) minmax(0,320px)}
@media (max-width:1080px){.lesson-bhv .lbody{grid-template-columns:190px minmax(0,1fr)}
  .lesson-bhv .lstory{grid-column:1 / -1}}
@media (max-width:820px){.lbody,.lesson-bhv .lbody{grid-template-columns:1fr}.spine{display:none}}

.spine{position:sticky;top:20px}
.spine .sp-lbl{font-size:11.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--dim);margin-bottom:12px}
.lstep{display:flex;gap:9px;align-items:flex-start;padding:3px 0;color:var(--dim);
  text-decoration:none;position:relative}
.lstep::before{content:"";position:absolute;left:11px;top:26px;bottom:-3px;width:2px;background:var(--line)}
.lstep:last-child::before{display:none}
.lstep .n{flex:0 0 auto;width:24px;height:24px;border-radius:50%;border:2px solid var(--line);
  display:grid;place-items:center;font-size:11.5px;font-weight:700;background:var(--panel);z-index:1;
  transition:all .18s}
.lstep.on .n{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.lstep.done .n{border-color:var(--good);background:var(--good);color:#fff}
.lstep .t{font-size:13.5px;line-height:1.35;padding-top:3px}
.lstep.on .t{color:var(--ink);font-weight:600}

.lsec{margin-bottom:8px;scroll-margin-top:20px;padding-bottom:14px}
.lsec-lead{font-family:var(--serif);font-size:17px;line-height:1.6;color:var(--ink);
  border-left:3px solid var(--accent);padding:2px 0 2px 16px;margin:0 0 4px}
.lsec-lead p{margin:0 0 10px}.lsec-lead p:last-child{margin-bottom:0}
.lsec-n{display:inline-flex;align-items:center;gap:8px;font-size:11px;font-weight:700;
  letter-spacing:.07em;text-transform:uppercase;color:var(--accent);margin-bottom:6px}
.lsec-n b{width:20px;height:20px;border-radius:6px;background:var(--accent-soft);
  display:grid;place-items:center;font-size:11px}
.lsec h2{font-size:20px;margin:0 0 13px;letter-spacing:-.01em}

.lcheck{background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:22px;margin-top:26px;scroll-margin-top:20px}
.lcheck h2{font-size:17px;margin:0 0 4px}
.lc-sub{font-size:13px;color:var(--dim);margin:0 0 16px}
.lc-prog{height:6px;border-radius:3px;background:var(--line);margin-bottom:16px;overflow:hidden}
.lc-prog i{display:block;height:100%;background:var(--good);width:0;transition:width .3s}
.lci{display:flex;gap:12px;padding:11px 0;border-top:1px solid var(--line-2);cursor:pointer;
  align-items:flex-start}
.lci:first-of-type{border-top:none}
.lci .box{flex:0 0 auto;width:22px;height:22px;border-radius:6px;border:2px solid var(--line);
  display:grid;place-items:center;font-size:13px;color:#fff;transition:all .15s}
.lci.checked .box{background:var(--good);border-color:var(--good)}
.lci .txt{font-size:14px;line-height:1.4}
.lci .txt .why{display:block;font-size:12.5px;color:var(--dim);margin-top:3px}
.lci.checked .txt{color:var(--dim);text-decoration:line-through;text-decoration-color:var(--line)}
.lci.checked .txt .why{text-decoration:none}
.lstory{position:sticky;top:20px}

/* ========================================= worked-through (design/behavioral)
   No runner, no checklist — reading the material is the grading surface,
   self-reported with one button. */
.ckhint{margin:0 0 12px;font-size:12.5px;color:var(--dim);line-height:1.55}

/* ============================================= story builder (behavioral) */
.storyform{display:flex;flex-direction:column;gap:5px;padding:4px 18px 18px;
  border-top:1px solid var(--line)}
.storyform label{font-size:12px;color:var(--dim);font-weight:600;margin-top:9px}
.storyform input,.storyform textarea{width:100%;font:inherit;font-size:13.5px;
  padding:8px 10px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--panel);color:var(--ink);resize:vertical}
.storyform textarea{line-height:1.55}
.storyform input:focus,.storyform textarea:focus{outline:2px solid var(--accent-line);
  outline-offset:-1px;border-color:var(--accent-line)}
.strow{display:flex;align-items:center;gap:9px;margin-top:14px;flex-wrap:wrap}
.strow .sp{flex:1}
#storyList .row{width:100%;text-align:left;background:none;border:none;
  border-bottom:1px solid var(--line-2);font:inherit;cursor:pointer}
#storyList .row:hover{background:var(--panel-2)}

@media (max-width:640px){
  .storyform{padding:4px 14px 16px}
}

/* Six nav items fit at laptop width; below that the bar scrolls, and under
   760px it drops to its own full-width row (rules above). */
@media (max-width:1100px){
  .topbar{gap:14px;padding:0 16px}
  .nav a{padding:7px 9px;font-size:13.5px}
}

/* A lesson's tagline is a sentence, not a chip label. */
.tag.wrap{white-space:normal;text-transform:none;letter-spacing:.01em;font-weight:500;
  max-width:100%;line-height:1.5}