/* ============================================================
   Dispatch Lab — visual system
   Light + dark themes. Archivo (display) / Inter Tight (UI) /
   JetBrains Mono (figures). Mile-marker route is the signature.
   ============================================================ */

:root{
  --brand-900:#070E1A;
  --brand-800:#0B1424;
  --brand-700:#121E33;

  --bg:#F2F4F7;
  --surface:#FFFFFF;
  --surface-2:#F7F9FB;
  --surface-3:#EEF2F6;
  --border:#E4E9F0;
  --border-strong:#D2DAE5;

  --text:#0B1220;
  --muted:#5A6B80;
  --faint:#8B9AAD;
  --invert:#FFFFFF;

  --accent:#FFB020;
  --accent-2:#F59300;
  --accent-ink:#3A2400;
  --accent-soft:#FFF6E4;

  --green:#0FA968;
  --green-soft:#E6F7EF;
  --red:#E2543F;
  --red-soft:#FDEDEA;

  --ring:0 0 0 4px color-mix(in srgb, var(--accent) 38%, transparent);
  --sh-1:0 1px 2px rgba(11,18,32,.05);
  --sh-2:0 2px 4px rgba(11,18,32,.04), 0 10px 22px -14px rgba(11,18,32,.35);
  --sh-3:0 4px 10px rgba(11,18,32,.06), 0 24px 48px -24px rgba(11,18,32,.42);

  --r-sm:9px; --r:13px; --r-lg:18px; --r-xl:24px;
  --rail-w:252px;

  --display:"Archivo", system-ui, sans-serif;
  --sans:"Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:"JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

[data-theme="dark"]{
  --bg:#0A111C;
  --surface:#121B29;
  --surface-2:#0E1725;
  --surface-3:#1A2434;
  --border:#202C3E;
  --border-strong:#2C3A4E;
  --text:#E9EEF5;
  --muted:#95A6BC;
  --faint:#6D8098;
  --accent-soft:#2A2110;
  --green-soft:#0F2A20;
  --red-soft:#2C1713;
  --sh-1:0 1px 2px rgba(0,0,0,.4);
  --sh-2:0 2px 6px rgba(0,0,0,.4), 0 12px 26px -16px rgba(0,0,0,.8);
  --sh-3:0 6px 14px rgba(0,0,0,.45), 0 30px 60px -28px rgba(0,0,0,.9);
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%; scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:var(--sans); font-size:15.5px; line-height:1.65; font-weight:400;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
h1,h2,h3{font-family:var(--display); font-weight:800; letter-spacing:-.028em; line-height:1.14; margin:0 0 .5em}
h1{font-size:clamp(1.75rem,3vw,2.4rem)}
h2{font-size:clamp(1.25rem,2vw,1.55rem)}
h3{font-size:1.1rem; letter-spacing:-.02em}
h4{font-family:var(--sans); font-size:.74rem; letter-spacing:.11em; text-transform:uppercase;
   color:var(--faint); font-weight:700; margin:2.2em 0 .7em}
p{margin:0 0 1.05em}
a{color:inherit}
svg{fill:currentColor}
::selection{background:var(--accent); color:var(--accent-ink)}

/* ---------------- app frame ---------------- */
.app{display:flex; min-height:100vh}
.col{flex:1; min-width:0; display:flex; flex-direction:column}
.shell{width:100%; max-width:1080px; margin:0 auto; padding:44px 32px 72px; flex:1}
.shell--bare{max-width:none; padding:0}

/* ---------------- rail ---------------- */
.rail{
  width:var(--rail-w); flex:0 0 var(--rail-w); background:var(--brand-900); color:#C8D4E4;
  display:flex; flex-direction:column; padding:22px 16px; position:sticky; top:0; height:100vh;
  border-right:1px solid rgba(255,255,255,.06);
}
.brand{display:flex; align-items:center; gap:11px; text-decoration:none; color:#fff; padding:4px 8px 26px}
.brand-mark{display:flex; flex-direction:column; gap:3.5px; width:24px; flex:0 0 24px}
.brand-mark i{height:3px; border-radius:2px; background:var(--accent); display:block}
.brand-mark i:nth-child(2){width:64%; background:#fff}
.brand-mark i:nth-child(3){width:38%; opacity:.55}
.brand-text{display:flex; flex-direction:column; line-height:1.15}
.brand-text strong{font-family:var(--display); font-size:1.04rem; font-weight:800; letter-spacing:-.03em}
.brand-text em{font-style:normal; font-size:.63rem; text-transform:uppercase; letter-spacing:.15em; color:#6C8099}

.railnav{display:flex; flex-direction:column; gap:2px}
.railnav a{
  display:flex; align-items:center; gap:11px; padding:10px 12px; border-radius:var(--r-sm);
  text-decoration:none; color:#9FB2C9; font-size:.9rem; font-weight:500;
  transition:background .16s ease, color .16s ease;
}
.railnav a svg{width:18px; height:18px; opacity:.7; flex:0 0 18px}
.railnav a:hover{background:rgba(255,255,255,.06); color:#fff}
.railnav a.is-on{background:rgba(255,255,255,.09); color:#fff; box-shadow:inset 2px 0 0 var(--accent)}
.railnav a.is-on svg{opacity:1; color:var(--accent)}

.railfoot{margin-top:auto; display:flex; flex-direction:column; gap:10px}
.themeswap{
  display:flex; align-items:center; gap:11px; width:100%; padding:9px 12px; border:0; cursor:pointer;
  border-radius:var(--r-sm); background:transparent; color:#9FB2C9; font-family:var(--sans);
  font-size:.88rem; font-weight:500;
}
.themeswap:hover{background:rgba(255,255,255,.06); color:#fff}
.themeswap svg{width:17px; height:17px; flex:0 0 17px}
.themeswap .ic-sun{fill:none; stroke:currentColor}
.ic-moon{display:none}
[data-theme="dark"] .ic-sun{display:none}
[data-theme="dark"] .ic-moon{display:block}
.me{
  display:flex; align-items:center; gap:10px; padding:10px; border-radius:var(--r);
  background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.07);
}
.avatar{
  width:32px; height:32px; flex:0 0 32px; border-radius:9px; display:grid; place-items:center;
  background:var(--accent); color:var(--accent-ink); font-family:var(--display); font-weight:800; font-size:.9rem;
}
.me-txt{display:flex; flex-direction:column; line-height:1.25; min-width:0; flex:1}
.me-txt strong{color:#fff; font-size:.85rem; font-weight:600; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.me-txt em{font-style:normal; font-size:.66rem; text-transform:uppercase; letter-spacing:.1em; color:#6C8099}
.signout{color:#6C8099; display:grid; place-items:center; padding:5px; border-radius:7px}
.signout svg{width:17px; height:17px}
.signout:hover{color:var(--accent); background:rgba(255,255,255,.07)}

/* mobile bar */
.mobar{display:none; align-items:center; gap:14px; padding:0 16px; height:56px;
  background:var(--brand-900); color:#fff; position:sticky; top:0; z-index:40}
.mobar-brand{font-family:var(--display); font-weight:800; letter-spacing:-.03em; flex:1}
.mobar-out{color:#9FB2C9; text-decoration:none; font-size:.82rem}
.hamb{background:transparent; border:0; padding:6px; cursor:pointer; display:flex; flex-direction:column; gap:4px; width:30px}
.hamb i{height:2px; background:#fff; border-radius:2px; display:block}
.hamb i:nth-child(2){width:70%}
.scrim{display:none; position:fixed; inset:0; background:rgba(7,14,26,.55); z-index:45; backdrop-filter:blur(2px)}
body.rail-open .scrim{display:block}

/* ---------------- footer ---------------- */
.footpost{
  border-top:1px solid var(--border); color:var(--faint); font-size:.75rem; line-height:1.6;
  padding:22px 32px; display:flex; gap:18px; flex-wrap:wrap; justify-content:space-between;
}

/* ---------------- login ---------------- */
.page-login{background:var(--brand-900); min-height:100vh}
.page-login .app{display:block}
.login-page{
  min-height:100vh; display:grid; grid-template-columns:1.05fr .95fr;
  background:
    radial-gradient(900px 620px at 12% 4%, rgba(255,176,32,.16) 0%, transparent 58%),
    radial-gradient(760px 520px at 88% 96%, rgba(45,110,190,.22) 0%, transparent 60%),
    var(--brand-900);
}
.login-hero{padding:56px 6vw; display:flex; flex-direction:column; justify-content:center; color:#fff}
.login-hero .kick{
  font-family:var(--mono); font-size:.66rem; letter-spacing:.24em; text-transform:uppercase;
  color:var(--accent); display:inline-flex; align-items:center; gap:9px; margin-bottom:20px;
}
.login-hero .kick::before{content:""; width:26px; height:2px; background:var(--accent); display:block}
.login-hero h1{font-size:clamp(2.4rem,5vw,3.7rem); letter-spacing:-.04em; margin:0 0 .35em; color:#fff}
.login-hero p{color:#9FB2C9; max-width:38ch; font-size:1.02rem; margin:0}
.login-stats{display:flex; gap:34px; margin-top:44px; flex-wrap:wrap}
.login-stats div b{display:block; font-family:var(--mono); font-size:1.6rem; color:#fff; font-weight:700; line-height:1}
.login-stats div span{font-size:.68rem; text-transform:uppercase; letter-spacing:.13em; color:#6C8099}
.login-side{display:flex; align-items:center; justify-content:center; padding:40px 6vw}
.login-card{
  width:100%; max-width:390px; background:var(--surface); color:var(--text);
  border-radius:var(--r-xl); padding:34px 32px; box-shadow:var(--sh-3);
  border:1px solid var(--border);
}
.login-card h2{font-size:1.3rem; margin-bottom:.25em}
.login-card .lede{color:var(--muted); font-size:.9rem; margin-bottom:1.7em}
.login-note{color:var(--faint); font-size:.78rem; margin:18px 0 0; text-align:center}

/* ---------------- forms ---------------- */
label.f{display:block; margin-bottom:15px}
label.f > span{display:block; font-size:.76rem; font-weight:600; color:var(--muted); margin-bottom:6px}
input[type=text],input[type=password],input[type=email],input[type=number],select{
  width:100%; padding:11px 13px; border:1px solid var(--border-strong); border-radius:var(--r-sm);
  font-family:var(--sans); font-size:.94rem; color:var(--text); background:var(--surface);
  transition:border-color .15s ease, box-shadow .15s ease;
}
input:hover,select:hover{border-color:var(--faint)}
input:focus,select:focus{outline:none; border-color:var(--accent); box-shadow:var(--ring)}
:focus-visible{outline:2px solid var(--accent); outline-offset:2px}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px; border:1px solid transparent;
  border-radius:var(--r-sm); padding:11px 18px; cursor:pointer; font-family:var(--sans);
  font-size:.89rem; font-weight:600; background:var(--brand-800); color:#fff; text-decoration:none;
  transition:transform .1s ease, background .16s ease, box-shadow .16s ease; box-shadow:var(--sh-1);
}
.btn:hover{background:var(--brand-700); box-shadow:var(--sh-2)}
.btn:active{transform:translateY(1px)}
.btn--amber{background:var(--accent); color:var(--accent-ink)}
.btn--amber:hover{background:var(--accent-2)}
.btn--ghost{background:var(--surface); color:var(--text); border-color:var(--border-strong); box-shadow:none}
.btn--ghost:hover{background:var(--surface-3); border-color:var(--faint)}
.btn--wide{width:100%}
.btn--sm{padding:6px 11px; font-size:.78rem; border-radius:7px}
.btn--danger{background:transparent; color:var(--red); border-color:var(--border-strong); box-shadow:none}
.btn--danger:hover{background:var(--red); color:#fff; border-color:var(--red)}

.flash{padding:12px 15px; border-radius:var(--r-sm); font-size:.88rem; margin-bottom:18px;
  display:flex; gap:10px; align-items:flex-start; border:1px solid}
.flash--bad{background:var(--red-soft); border-color:color-mix(in srgb,var(--red) 30%,transparent); color:var(--red)}
.flash--good{background:var(--green-soft); border-color:color-mix(in srgb,var(--green) 30%,transparent); color:var(--green)}

/* ---------------- page head ---------------- */
.phead{margin-bottom:30px}
.phead .kick{
  font-family:var(--mono); font-size:.66rem; letter-spacing:.18em; text-transform:uppercase;
  color:var(--faint); display:block; margin-bottom:9px;
}
.phead p.sub{color:var(--muted); max-width:64ch; margin:0; font-size:1rem}

/* ---------------- hero card + ring ---------------- */
.hero{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-lg);
  box-shadow:var(--sh-2); padding:26px 28px; margin-bottom:30px;
  display:flex; gap:32px; align-items:center; flex-wrap:wrap;
}
.ring{position:relative; width:112px; height:112px; flex:0 0 112px}
.ring svg{transform:rotate(-90deg); width:112px; height:112px}
.ring circle{fill:none; stroke-width:9; stroke-linecap:round}
.ring .trk{stroke:var(--surface-3)}
.ring .val{stroke:var(--accent); transition:stroke-dashoffset .9s cubic-bezier(.4,0,.2,1)}
.ring.is-done .val{stroke:var(--green)}
.ring b{
  position:absolute; inset:0; display:grid; place-items:center; font-family:var(--mono);
  font-size:1.42rem; font-weight:700; letter-spacing:-.03em;
}
.hero-body{flex:1 1 260px; min-width:0}
.hero-body h2{margin-bottom:.3em}
.hero-body p{color:var(--muted); margin:0; font-size:.94rem}
.stats{display:flex; gap:28px; flex-wrap:wrap; margin-left:auto}
.stats div b{display:block; font-family:var(--mono); font-size:1.45rem; font-weight:700; letter-spacing:-.03em; line-height:1.2}
.stats div span{font-size:.68rem; text-transform:uppercase; letter-spacing:.1em; color:var(--faint); font-weight:600}
.stats .win b{color:var(--green)}

.odometer{display:flex; gap:26px; flex-wrap:wrap; background:var(--surface); border:1px solid var(--border);
  border-radius:var(--r-lg); padding:20px 24px; margin-bottom:28px; box-shadow:var(--sh-1)}
.odo b{display:block; font-family:var(--mono); font-size:1.45rem; font-weight:700; letter-spacing:-.03em; line-height:1.2}
.odo span{font-size:.68rem; text-transform:uppercase; letter-spacing:.1em; color:var(--faint); font-weight:600}
.odo--win b{color:var(--green)}

/* ---------------- THE ROUTE ---------------- */
.route{position:relative; padding-left:80px}
.route::before{
  content:""; position:absolute; left:25px; top:14px; bottom:30px; width:2px;
  background:repeating-linear-gradient(to bottom, var(--border-strong) 0 10px, transparent 10px 22px);
}
.route-fill{
  position:absolute; left:25px; top:14px; width:2px;
  background:repeating-linear-gradient(to bottom, var(--accent) 0 10px, transparent 10px 22px);
  transition:height .9s cubic-bezier(.4,0,.2,1);
}
.stop{position:relative; margin-bottom:14px}
.marker{
  position:absolute; left:-80px; top:20px; width:52px; height:54px; border-radius:var(--r);
  background:linear-gradient(160deg,#12784E,#0B5637); color:#fff; display:flex; flex-direction:column;
  align-items:center; justify-content:center; box-shadow:var(--sh-2), inset 0 1px 0 rgba(255,255,255,.22);
  transition:transform .18s ease;
}
.marker em{font-style:normal; font-size:.47rem; letter-spacing:.16em; text-transform:uppercase; opacity:.72}
.marker b{font-family:var(--mono); font-size:1.12rem; font-weight:700; line-height:1.15; letter-spacing:-.02em}
.stop.is-done .marker{background:linear-gradient(160deg,#12233B,#0A1424)}
.stop.is-done .marker::before{
  content:"✓"; position:absolute; right:-6px; top:-6px; width:20px; height:20px; border-radius:50%;
  background:var(--green); color:#fff; font-size:.66rem; font-weight:800; display:grid; place-items:center;
  box-shadow:0 0 0 3px var(--bg); z-index:2;
}
.tile:hover + .marker, .stop:hover .marker{transform:scale(1.04)}

.tile{
  display:block; background:var(--surface); border:1px solid var(--border); border-radius:var(--r-lg);
  padding:20px 22px; text-decoration:none; color:inherit; box-shadow:var(--sh-1);
  transition:transform .18s cubic-bezier(.4,0,.2,1), box-shadow .18s ease, border-color .18s ease;
  position:relative; overflow:hidden;
}
.tile::after{
  content:""; position:absolute; left:0; top:0; bottom:0; width:3px; background:var(--accent);
  transform:scaleY(0); transform-origin:top; transition:transform .22s ease;
}
.tile:hover{transform:translateY(-2px); box-shadow:var(--sh-3); border-color:var(--border-strong)}
.tile:hover::after{transform:scaleY(1)}
.stop.is-done .tile::after{background:var(--green); transform:scaleY(1)}
.tile-top{display:flex; align-items:center; gap:9px; margin-bottom:8px; flex-wrap:wrap}
.tag{
  font-size:.65rem; letter-spacing:.09em; text-transform:uppercase; font-weight:700; color:var(--muted);
  background:var(--surface-3); padding:3px 9px; border-radius:99px;
}
.tag--done{background:var(--green-soft); color:var(--green)}
.tile h3{margin:0 0 7px; font-size:1.16rem}
.tile p{margin:0 0 15px; color:var(--muted); font-size:.92rem; max-width:62ch}
.tile-foot{display:flex; align-items:center; gap:14px; flex-wrap:wrap; font-size:.76rem; color:var(--faint)}
.tile-foot .meta{font-family:var(--mono); font-size:.7rem; letter-spacing:.01em}
.tile-foot .score{color:var(--green); font-weight:700; font-family:var(--mono); font-size:.72rem}
.tile-foot .score.is-low{color:var(--accent-2)}
.bar{flex:1 1 90px; height:5px; background:var(--surface-3); border-radius:99px; overflow:hidden; min-width:70px}
.bar i{display:block; height:100%; background:var(--brand-700); border-radius:99px; transition:width .6s ease}
[data-theme="dark"] .bar i{background:var(--faint)}
.stop.is-done .bar i{background:var(--green)}

.finish{margin-top:6px}
.finish .marker{
  background:var(--surface); border:2px dashed var(--border-strong); height:44px; top:2px; box-shadow:none;
}
.finish .marker::after,.finish .marker::before{display:none}
.finish-note{
  background:var(--surface); border:1px dashed var(--border-strong); border-radius:var(--r-lg);
  padding:16px 20px; color:var(--muted); font-size:.9rem;
}
.finish-note.is-won{border:1px solid var(--green); background:var(--green-soft); color:var(--green); font-weight:600}

/* ---------------- lesson ---------------- */
.lesson-head{
  background:linear-gradient(150deg,var(--brand-800) 0%,var(--brand-900) 100%);
  color:#fff; border-radius:var(--r-lg); padding:30px 32px; margin-bottom:22px; position:relative; overflow:hidden;
}
.lesson-head::after{
  content:""; position:absolute; right:-60px; top:-60px; width:240px; height:240px; border-radius:50%;
  background:radial-gradient(circle,rgba(255,176,32,.18),transparent 68%);
}
.lesson-head .kick{font-family:var(--mono); font-size:.66rem; letter-spacing:.18em; text-transform:uppercase; color:var(--accent)}
.lesson-head h1{color:#fff; margin:.45em 0 .3em; font-size:clamp(1.55rem,2.8vw,2.15rem)}
.lesson-head p{color:#9FB2C9; margin:0; max-width:64ch; font-size:.97rem; position:relative}

.steps{
  display:flex; gap:7px; overflow-x:auto; padding:8px 0 12px; margin-bottom:20px;
  position:sticky; top:0; z-index:20; background:var(--bg);
  scrollbar-width:thin; -webkit-overflow-scrolling:touch;
}
.steps::-webkit-scrollbar{height:4px}
.steps::-webkit-scrollbar-thumb{background:var(--border-strong); border-radius:99px}
.steps button{
  flex:0 0 auto; font-size:.8rem; font-weight:600; padding:8px 14px; border-radius:99px;
  border:1px solid var(--border); background:var(--surface); color:var(--muted); cursor:pointer;
  font-family:var(--sans); white-space:nowrap; transition:all .15s ease;
}
.steps button:hover{border-color:var(--faint); color:var(--text)}
.steps button.is-read{color:var(--green); border-color:color-mix(in srgb,var(--green) 34%,transparent)}
.steps button.is-on{background:var(--brand-800); color:#fff; border-color:var(--brand-800)}
.steps button.is-read.is-on{background:var(--green); border-color:var(--green); color:#fff}

.panel{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--r-lg);
  padding:34px 38px; box-shadow:var(--sh-1);
}
.panel[hidden]{display:none}
.panel > h2{margin-top:0; margin-bottom:.7em}
.panel ul,.panel ol{margin:0 0 1.1em; padding-left:1.15em}
.panel li{margin-bottom:.45em}
.panel li::marker{color:var(--faint)}
.panel .hint{font-size:.82rem; color:var(--faint)}

.callout{
  background:var(--accent-soft); border:1px solid color-mix(in srgb,var(--accent) 32%,transparent);
  padding:15px 18px; border-radius:var(--r); font-size:.93rem; margin:1.5em 0;
}
.formula{
  font-family:var(--mono); background:var(--brand-900); color:#CFE0F2; padding:15px 18px;
  border-radius:var(--r); font-size:.85rem; margin:1.3em 0; overflow-x:auto; line-height:1.75;
  border:1px solid rgba(255,255,255,.07);
}
.formula strong{color:var(--accent)}

.dl-table{width:100%; border-collapse:separate; border-spacing:0; margin:1.4em 0; font-size:.87rem;
  border:1px solid var(--border); border-radius:var(--r); overflow:hidden}
.dl-table th{
  background:var(--surface-3); color:var(--muted); text-align:left; padding:11px 13px; font-weight:700;
  font-size:.68rem; text-transform:uppercase; letter-spacing:.09em; border-bottom:1px solid var(--border);
}
.dl-table td{padding:11px 13px; border-bottom:1px solid var(--border); vertical-align:top}
.dl-table tbody tr:last-child td{border-bottom:0}
.dl-table tbody tr:hover td{background:var(--surface-2)}
.dl-table .is-total td{font-weight:700; background:var(--surface-3); border-top:2px solid var(--border-strong)}
.dl-table .rowhead{font-weight:700; background:var(--surface-3); width:92px}
.dl-table--num td{font-family:var(--mono); font-size:.81rem; text-align:right}
.dl-table--num td:first-child{text-align:left}
.dl-table--num th{text-align:right}
.dl-table--num th:first-child{text-align:left}
.dl-table--cycle td:first-child{font-family:var(--mono); font-size:.76rem; white-space:nowrap; width:100px; color:var(--faint)}
.tblwrap{overflow-x:auto; border-radius:var(--r)}

.lesson-nav{display:flex; justify-content:space-between; gap:12px; margin-top:30px; flex-wrap:wrap; align-items:center}

/* ---------------- widgets ---------------- */
.wdg{
  background:var(--surface-2); border:1px solid var(--border); border-radius:var(--r-lg);
  padding:22px 24px; margin:1.8em 0;
}
.wdg-h{
  font-size:.68rem; letter-spacing:.13em; text-transform:uppercase; color:var(--faint);
  font-weight:700; margin-bottom:16px; display:flex; align-items:center; gap:9px;
}
.wdg-h::after{content:""; flex:1; height:1px; background:var(--border)}
.wdg-in{display:grid; grid-template-columns:repeat(auto-fit,minmax(148px,1fr)); gap:13px; margin-bottom:18px}
.wdg-in label.f{margin-bottom:0}
.wdg-out{display:grid; grid-template-columns:repeat(auto-fit,minmax(126px,1fr)); gap:10px}
.wdg-out div{background:var(--surface); border:1px solid var(--border); border-radius:var(--r); padding:13px 15px}
.wdg-out b{display:block; font-family:var(--mono); font-size:1.3rem; font-weight:700; letter-spacing:-.03em}
.wdg-out span{font-size:.65rem; text-transform:uppercase; letter-spacing:.09em; color:var(--faint); font-weight:600}
.wdg-out .hi{border-color:color-mix(in srgb,var(--green) 40%,transparent); background:var(--green-soft)}
.wdg-out .hi b{color:var(--green)}
.wdg-msg{margin:14px 0 0; font-size:.86rem; color:var(--muted); line-height:1.6}

.dl-org{display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:8px; margin:1.4em 0}
.dl-org button{
  text-align:left; padding:12px 14px; border:1px solid var(--border); background:var(--surface);
  border-radius:var(--r); cursor:pointer; font-family:var(--sans); font-size:.85rem; font-weight:600;
  color:var(--text); transition:all .15s ease;
}
.dl-org button:hover{border-color:var(--faint); transform:translateY(-1px)}
.dl-org button.is-on{background:var(--brand-800); color:#fff; border-color:var(--brand-800)}
.dl-org button small{display:block; font-weight:500; font-size:.65rem; color:var(--faint);
  text-transform:uppercase; letter-spacing:.09em; margin-bottom:3px}
.dl-org button.is-on small{color:var(--accent)}
.org-out{
  grid-column:1/-1; background:var(--surface); border:1px solid var(--border); border-radius:var(--r);
  padding:16px 18px; font-size:.91rem; box-shadow:inset 3px 0 0 var(--accent);
}

.dl-grid-eq{display:grid; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); gap:10px; margin:1.5em 0}
.eq{background:var(--surface); border:1px solid var(--border); border-radius:var(--r); padding:14px 16px;
  transition:transform .15s ease, box-shadow .15s ease}
.eq:hover{transform:translateY(-2px); box-shadow:var(--sh-2)}
.eq-n{display:block; font-weight:700; font-size:.92rem; margin-bottom:4px; letter-spacing:-.01em}
.eq span:last-child{font-size:.82rem; color:var(--muted); line-height:1.5}

.cardwrap{display:flex; flex-direction:column; align-items:center; gap:16px}
.flip{
  width:100%; max-width:440px; min-height:168px; border-radius:var(--r-lg); border:0; cursor:pointer;
  background:linear-gradient(150deg,var(--brand-800),var(--brand-900)); color:#fff;
  display:grid; place-items:center; text-align:center; padding:28px;
  font-family:var(--sans); font-size:1.06rem; line-height:1.5; box-shadow:var(--sh-2);
  transition:transform .18s ease;
}
.flip:hover{transform:translateY(-2px)}
.flip .side-b{font-family:var(--display); color:var(--accent); font-weight:800; font-size:1.5rem; letter-spacing:-.03em}
.cardnav{display:flex; gap:9px; align-items:center; flex-wrap:wrap; justify-content:center}
.cardnav span{font-family:var(--mono); font-size:.78rem; color:var(--faint); padding:0 6px}

.lanes{display:grid; gap:8px}
.lane-row{
  display:flex; align-items:center; gap:12px; background:var(--surface); border:1px solid var(--border);
  border-radius:var(--r); padding:11px 14px; flex-wrap:wrap; transition:all .15s ease;
}
.lane-row .ln{flex:1 1 200px; font-size:.89rem; font-weight:600}
.lane-row .mi{font-family:var(--mono); font-size:.76rem; color:var(--faint)}
.lane-row select{width:auto; min-width:145px; padding:7px 10px; font-size:.83rem}
.lane-row.ok{border-color:var(--green); background:var(--green-soft)}
.lane-row.no{border-color:var(--red); background:var(--red-soft)}

.tl{display:grid; border-left:2px solid var(--border); margin:1.2em 0}
.tl button{
  text-align:left; background:transparent; border:0; border-left:2px solid transparent; margin-left:-2px;
  padding:9px 15px; cursor:pointer; font-family:var(--sans); font-size:.86rem; color:var(--muted);
  transition:all .14s ease;
}
.tl button:hover{color:var(--text)}
.tl button.is-on{border-left-color:var(--accent); color:var(--text); font-weight:600}
.tl-out{background:var(--surface); border:1px solid var(--border); border-radius:var(--r);
  padding:16px 18px; margin-top:14px; font-size:.91rem}
.tl-out .tl-time{font-family:var(--mono); font-size:.68rem; color:var(--accent-2);
  text-transform:uppercase; letter-spacing:.11em}

/* ---------------- quiz ---------------- */
.quiz-intro{
  background:var(--accent-soft); border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);
  border-radius:var(--r-lg); padding:18px 22px; margin-bottom:24px;
}
.quiz-intro p{margin:0; font-size:.9rem}
.q{
  border:1px solid var(--border); border-radius:var(--r-lg); padding:22px 24px; margin-bottom:14px;
  background:var(--surface); box-shadow:var(--sh-1);
}
.q-n{font-family:var(--mono); font-size:.66rem; letter-spacing:.13em; color:var(--faint); text-transform:uppercase}
.q-t{font-weight:600; margin:.5em 0 1em; font-size:1.02rem; letter-spacing:-.01em}
.opt{
  display:flex; align-items:flex-start; gap:12px; position:relative; padding:12px 15px;
  border:1px solid var(--border); border-radius:var(--r); margin-bottom:8px; cursor:pointer;
  font-size:.93rem; background:var(--surface); transition:all .14s ease;
}
.opt:hover{border-color:var(--faint); background:var(--surface-2)}
.opt input{accent-color:var(--brand-800); margin:4px 0 0; flex:0 0 auto}
.opt.picked{border-color:var(--brand-700); background:var(--surface-3)}
.q.right{box-shadow:inset 3px 0 0 var(--green), var(--sh-1)}
.q.wrong{box-shadow:inset 3px 0 0 var(--red), var(--sh-1)}
.opt.correct{border-color:var(--green); background:var(--green-soft)}
.opt.chosen-wrong{border-color:var(--red); background:var(--red-soft)}
.why{font-size:.87rem; color:var(--muted); background:var(--surface-2); border:1px solid var(--border);
  border-radius:var(--r); padding:12px 15px; margin-top:12px}
.why b{color:var(--text)}

.result{
  border-radius:var(--r-lg); padding:34px 30px; text-align:center; margin-bottom:26px; color:#fff;
  background:linear-gradient(150deg,var(--brand-800),var(--brand-900)); position:relative; overflow:hidden;
}
.result::after{content:""; position:absolute; inset:auto -40px -80px; height:200px;
  background:radial-gradient(circle at 50% 0,rgba(255,255,255,.1),transparent 70%)}
.result.pass{background:linear-gradient(150deg,#128A57,#0A5738)}
.result .big{font-family:var(--mono); font-size:3.4rem; font-weight:700; line-height:1;
  display:block; letter-spacing:-.05em}
.result h2{color:#fff; margin:.35em 0 .2em}
.result p{margin:0; opacity:.85; font-size:.93rem}
.result .acts{display:flex; gap:10px; justify-content:center; margin-top:20px; flex-wrap:wrap; position:relative; z-index:2}
.result .btn--ghost{background:rgba(255,255,255,.12); color:#fff; border-color:rgba(255,255,255,.28)}
.result .btn--ghost:hover{background:rgba(255,255,255,.2)}

/* ---------------- cards, tables, admin ---------------- */
.card{background:var(--surface); border:1px solid var(--border); border-radius:var(--r-lg);
  padding:26px; box-shadow:var(--sh-1)}
.card h2{font-size:1.12rem; margin-bottom:1.1em}
.admin-grid{display:grid; grid-template-columns:1fr; gap:22px; align-items:start}
@media(min-width:960px){.admin-grid{grid-template-columns:320px 1fr}}

.utable{width:100%; border-collapse:separate; border-spacing:0; font-size:.87rem}
.utable th{
  background:var(--surface-2); color:var(--faint); padding:10px 12px; text-align:left; font-size:.66rem;
  text-transform:uppercase; letter-spacing:.09em; white-space:nowrap; border-bottom:1px solid var(--border);
  position:sticky; top:0;
}
.utable td{padding:11px 12px; border-bottom:1px solid var(--border); vertical-align:middle}
.utable tbody tr:last-child td{border-bottom:0}
.utable tbody tr:hover td{background:var(--surface-2)}
.utable a{text-decoration:none}
.utable a:hover{color:var(--accent-2)}

.pill{font-size:.68rem; padding:3px 9px; border-radius:99px; font-weight:600; white-space:nowrap;
  background:var(--surface-3); color:var(--muted); display:inline-block}
.pill--on{background:var(--green-soft); color:var(--green)}
.pill--off{background:var(--red-soft); color:var(--red)}
.pill--admin{background:var(--accent-soft); color:var(--accent-2)}
.pill--mono{font-family:var(--mono); font-size:.66rem}
.mini-bar{width:70px; height:5px; background:var(--surface-3); border-radius:99px; overflow:hidden;
  display:inline-block; vertical-align:middle; margin-right:6px}
.mini-bar i{display:block; height:100%; background:var(--green); border-radius:99px}
.rowacts{display:flex; gap:5px; flex-wrap:wrap}
.rowacts form{display:inline}

.matrix td.cell{text-align:center; font-family:var(--mono); font-size:.76rem; padding:8px 4px}
.cell b{display:inline-grid; place-items:center; width:32px; height:26px; border-radius:7px; font-weight:600}
.cell.p b{background:var(--green-soft); color:var(--green)}
.cell.f b{background:var(--red-soft); color:var(--red)}
.cell.n b{color:var(--border-strong)}

.tabs{display:flex; gap:6px; margin-bottom:22px; flex-wrap:wrap; background:var(--surface-3);
  padding:5px; border-radius:99px; width:fit-content}
.tabs a{padding:8px 16px; border-radius:99px; text-decoration:none; font-size:.83rem; font-weight:600;
  color:var(--muted); transition:all .15s ease}
.tabs a:hover{color:var(--text)}
.tabs a.is-on{background:var(--surface); color:var(--text); box-shadow:var(--sh-1)}

/* ---------------- responsive ---------------- */
@media(max-width:1024px){
  .login-page{grid-template-columns:1fr}
  .login-hero{padding:52px 8vw 10px}
  .login-side{padding:24px 8vw 56px; justify-content:flex-start}
  .login-stats{margin-top:30px}
}
@media(max-width:860px){
  .rail{position:fixed; left:0; top:0; z-index:50; transform:translateX(-100%);
    transition:transform .25s cubic-bezier(.4,0,.2,1); box-shadow:var(--sh-3)}
  body.rail-open .rail{transform:none}
  .mobar{display:flex}
  .shell{padding:26px 18px 56px}
  .footpost{padding:20px 18px}
  .panel{padding:24px 20px}
  .route{padding-left:60px}
  .route::before,.route-fill{left:19px}
  .marker{left:-60px; width:40px; height:46px; top:18px}
  .marker b{font-size:.95rem}
  .hero{padding:22px; gap:22px}
  .stats{margin-left:0}
  .steps{position:static}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none !important; animation:none !important; scroll-behavior:auto !important}
}
@media print{
  .rail,.mobar,.footpost,.lesson-nav,.steps{display:none}
  .app{display:block}
  .panel{border:0; box-shadow:none; padding:0}
}

/* utility bits */
.dim{font-size:.76rem; color:var(--faint)}
.lede{color:var(--muted); font-size:.86rem}
.opt .mine{color:var(--faint); font-style:normal; font-size:.82rem; margin-left:6px}
.q .opt{cursor:default}
.q.right .opt:hover,.q.wrong .opt:hover{border-color:inherit; background:inherit}
.steps{backdrop-filter:saturate(140%) blur(6px)}
.panel{scroll-margin-top:70px}