:root{
  --bg:#F4F6FA; --surface:#FFFFFF; --surface-2:#EBF0F8; --line:#D5DCE9; --line-strong:#B9C3D6;
  --text:#161D30; --muted:#5B6579; --ink:#1A2A57;
  --azul:#1F4FB8; --azul-deep:#173C8C; --azul-soft:#E3EBFB; --azul-ink:#FFFFFF;
  --sol:#E9A400; --sol-deep:#8A5B00; --sol-soft:#FFF1CC;
  --good:#166A47; --good-soft:#DCF2E6; --bad:#B8401A; --bad-soft:#FBE4DA;
  --shadow:0 1px 2px rgba(22,29,48,.05),0 10px 28px -14px rgba(22,29,48,.22);
  --r:10px; --r-sm:6px;
  --display:"Bricolage Grotesque","Avenir Next Condensed","Arial Narrow",system-ui,sans-serif;
  --body:"Source Sans 3","Source Sans Pro","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#0D1322; --surface:#151C30; --surface-2:#1C2540; --line:#2A3553; --line-strong:#3A4870;
    --text:#E6EBF7; --muted:#9BA7C2; --ink:#DEE6FF;
    --azul:#7E9EF5; --azul-deep:#A9BDF8; --azul-soft:#22315E; --azul-ink:#0D1322;
    --sol:#F5BC38; --sol-deep:#FFD36B; --sol-soft:#3A2E0E;
    --good:#4DC48C; --good-soft:#163A2A; --bad:#F08A63; --bad-soft:#3F2116;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 28px -14px rgba(0,0,0,.6);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0D1322; --surface:#151C30; --surface-2:#1C2540; --line:#2A3553; --line-strong:#3A4870;
  --text:#E6EBF7; --muted:#9BA7C2; --ink:#DEE6FF;
  --azul:#7E9EF5; --azul-deep:#A9BDF8; --azul-soft:#22315E; --azul-ink:#0D1322;
  --sol:#F5BC38; --sol-deep:#FFD36B; --sol-soft:#3A2E0E;
  --good:#4DC48C; --good-soft:#163A2A; --bad:#F08A63; --bad-soft:#3F2116;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 10px 28px -14px rgba(0,0,0,.6);
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto} *{animation:none!important;transition:none!important}}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--display);color:var(--ink);line-height:1.1;margin:0;text-wrap:balance;font-variation-settings:"opsz" 96}
h1{font-size:clamp(2.4rem,5.6vw,3.9rem);font-weight:750;letter-spacing:-.02em}
h2{font-size:clamp(1.7rem,3.4vw,2.35rem);font-weight:700;letter-spacing:-.015em}
h3{font-size:1.28rem;font-weight:650;font-variation-settings:"opsz" 40}
h4{font-size:1.05rem;font-weight:650;font-variation-settings:"opsz" 24}
p{margin:0}
a{color:var(--azul);text-decoration-thickness:1px;text-underline-offset:2px}
a:hover{color:var(--azul-deep)}
strong{font-weight:650}
em{font-style:italic}
code,kbd{font-family:var(--mono);font-size:.88em;background:var(--surface-2);padding:.1em .35em;border-radius:4px}
.es{font-style:italic;color:var(--ink)}
.eyebrow{font-family:var(--body);font-size:.78rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--azul)}
.muted{color:var(--muted)}
.small{font-size:.92rem}
.mono{font-family:var(--mono)}
.num{font-variant-numeric:tabular-nums}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--sol);outline-offset:2px}
button{font:inherit}

/* ---------- top bar ---------- */
.topbar{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar-in{max-width:1240px;margin:0 auto;padding:0 20px;display:flex;align-items:center;gap:16px;height:56px}
.brand{font-family:var(--display);font-weight:750;font-size:1.25rem;letter-spacing:-.01em;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:8px;white-space:nowrap}
.brand .tilde{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:7px;background:var(--azul);color:var(--azul-ink);font-size:1.1rem;font-weight:800}
.sync{margin-left:auto;font-size:.8rem;color:var(--muted);display:flex;align-items:center;gap:6px;white-space:nowrap}
.sync .dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}
.sync.on .dot{background:var(--good)}
.mobile-nav{display:none}

/* ---------- shell ---------- */
.shell{max-width:1240px;margin:0 auto;padding-inline:20px;padding-block:0 80px;display:grid;grid-template-columns:232px minmax(0,1fr);gap:48px}
.sidenav{position:sticky;top:76px;align-self:start;max-height:calc(100vh - 96px);overflow:auto;padding-top:28px}
.sidenav ol{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.sidenav a{display:block;padding:7px 10px 7px 12px;border-left:2px solid transparent;color:var(--muted);text-decoration:none;font-size:.95rem;font-weight:600;border-radius:0 6px 6px 0}
.sidenav a:hover{color:var(--text);background:var(--surface-2)}
.sidenav a.active{color:var(--azul);border-left-color:var(--azul);background:var(--azul-soft)}
.sidenav .group{margin-top:14px;padding-left:12px;font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}
main{min-width:0}
section{padding-block:56px;border-bottom:1px solid var(--line)}
section:last-of-type{border-bottom:0}
.section-head{display:flex;flex-direction:column;gap:8px;margin-bottom:24px;max-width:70ch}
.section-head p.lede{font-size:1.12rem;color:var(--muted);max-width:62ch}
.prose{max-width:66ch}
.prose p+p{margin-top:.9em}
.prose ul,.prose ol{padding-left:1.3em;margin:.6em 0}
.prose li+li{margin-top:.35em}

/* ---------- hero ---------- */
.hero{padding-block:44px 48px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:40px;align-items:end}
.hero .lede{font-size:1.2rem;color:var(--muted);max-width:52ch;margin-top:18px}
.hero .cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border-radius:8px;border:1px solid var(--line-strong);background:var(--surface);color:var(--text);font-weight:650;font-size:.95rem;cursor:pointer;text-decoration:none;line-height:1.2}
.btn:hover{border-color:var(--azul);color:var(--azul)}
.btn.primary{background:var(--azul);border-color:var(--azul);color:var(--azul-ink)}
.btn.primary:hover{background:var(--azul-deep);border-color:var(--azul-deep);color:var(--azul-ink)}
.btn.sm{padding:6px 11px;font-size:.86rem}
.btn.ghost{background:transparent}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.road{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px 22px 18px;box-shadow:var(--shadow)}
.road-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}
.road-top .big{font-family:var(--display);font-size:2.2rem;font-weight:750;color:var(--ink);line-height:1;font-variation-settings:"opsz" 96}
.road-top .big small{font-size:1rem;font-weight:600;color:var(--muted);font-family:var(--body)}
.track{position:relative;height:56px;margin-top:18px}
.track .bar{position:absolute;left:0;right:0;top:22px;height:10px;border-radius:5px;background:var(--surface-2);overflow:hidden}
.track .fill{position:absolute;left:0;top:0;bottom:0;background:linear-gradient(90deg,var(--azul),var(--sol));width:0%;transition:width .6s ease}
.track .tick{position:absolute;top:14px;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:3px}
.track .tick i{width:2px;height:26px;background:var(--line-strong);display:block}
.track .tick b{font-family:var(--mono);font-size:.7rem;font-weight:500;color:var(--muted);white-space:nowrap}
.track .tick.hit b{color:var(--azul);font-weight:600}
.track .me{position:absolute;top:8px;transform:translateX(-50%);width:16px;height:38px;pointer-events:none;transition:left .6s ease}
.track .me:before{content:"";position:absolute;left:50%;top:0;width:16px;height:16px;border-radius:50%;background:var(--sol);border:3px solid var(--surface);box-shadow:0 0 0 1px var(--sol-deep);transform:translateX(-50%)}
.road-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line)}
.road-stats div{display:flex;flex-direction:column;gap:2px}
.road-stats .k{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.road-stats .v{font-family:var(--display);font-size:1.35rem;font-weight:700;color:var(--ink);font-variation-settings:"opsz" 40}
.road-note{margin-top:12px;font-size:.85rem;color:var(--muted)}

/* ---------- cards & layout helpers ---------- */
.grid{display:grid;gap:16px}
.grid.c2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.c3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.c4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.card h3,.card h4{margin-bottom:8px}
.panel{background:var(--surface-2);border-radius:var(--r);padding:16px 18px}
.callout{border-left:3px solid var(--sol);background:var(--sol-soft);padding:12px 16px;border-radius:0 var(--r-sm) var(--r-sm) 0;max-width:70ch}
.callout.blue{border-left-color:var(--azul);background:var(--azul-soft)}
.callout.good{border-left-color:var(--good);background:var(--good-soft)}
.callout b{color:var(--ink)}
.pill{display:inline-block;font-size:.74rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:3px 8px;border-radius:999px;background:var(--surface-2);color:var(--muted);white-space:nowrap}
.pill.azul{background:var(--azul-soft);color:var(--azul)}
.pill.sol{background:var(--sol-soft);color:var(--sol-deep)}
.pill.good{background:var(--good-soft);color:var(--good)}
.pill.bad{background:var(--bad-soft);color:var(--bad)}
.tags{display:flex;flex-wrap:wrap;gap:6px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:.95rem}
.kv dt{color:var(--muted);font-weight:600}
.kv dd{margin:0}

/* ---------- tables ---------- */
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:.76rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);background:var(--surface-2);white-space:nowrap}
tr:last-child td{border-bottom:0}
td.mono,th.mono{font-family:var(--mono);font-size:.88rem}
table.compact th,table.compact td{padding:6px 10px}
.conj th:first-child,.conj td:first-child{color:var(--muted);font-weight:600;white-space:nowrap}
.conj td{font-family:var(--mono);font-size:.92rem}
.conj td .end{color:var(--azul);font-weight:500}
.conj td .irr{color:var(--bad);font-weight:500}

/* ---------- stages ---------- */
.stage{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:0;margin-top:20px;overflow:hidden}
.stage-head{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;padding:20px 24px;border-bottom:1px solid var(--line);background:var(--surface)}
.stage-num{font-family:var(--display);font-size:2.4rem;font-weight:800;color:var(--azul);line-height:1;font-variation-settings:"opsz" 96;min-width:52px}
.stage-head h3{font-size:1.5rem}
.stage-head .sub{color:var(--muted);margin-top:4px;font-size:.98rem}
.stage-meta{display:flex;flex-direction:column;align-items:flex-end;gap:6px;text-align:right}
.stage-meta .hrs{font-family:var(--mono);font-size:.9rem;color:var(--ink);font-weight:500}
.stage-body{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:0}
.stage-col{padding:20px 24px}
.stage-col+.stage-col{border-left:1px solid var(--line);background:var(--surface-2)}
.stage-col h4{margin-bottom:6px;margin-top:18px}
.stage-col h4:first-child{margin-top:0}
.stage-col ul{margin:0;padding-left:1.15em}
.stage-col li+li{margin-top:5px}
.stage-col p+p{margin-top:.7em}
.routine{display:grid;grid-template-columns:auto 1fr;gap:5px 12px;font-size:.95rem;align-items:baseline}
.routine .pct{font-family:var(--mono);font-size:.85rem;color:var(--azul);font-weight:500;white-space:nowrap}
.ms{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:6px}
.ms li{display:flex;gap:10px;align-items:flex-start}
.ms input{margin-top:4px;width:17px;height:17px;accent-color:var(--azul);flex:none}
.ms label{cursor:pointer}
.ms li.done label{color:var(--muted);text-decoration:line-through;text-decoration-color:var(--line-strong)}
.stage-progress{display:flex;align-items:center;gap:10px;font-size:.85rem;color:var(--muted);margin-top:12px}
.meter{flex:1;height:6px;background:var(--line);border-radius:3px;overflow:hidden}
.meter i{display:block;height:100%;background:var(--good);width:0;border-radius:3px;transition:width .4s}
.exit{margin-top:16px;padding:12px 14px;border:1px dashed var(--line-strong);border-radius:var(--r-sm);font-size:.94rem}
.exit b{color:var(--ink)}

/* ---------- grammar units ---------- */
.unit-group{margin-top:28px}
.unit-group>h3{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.unit-group>h3 .pill{font-size:.7rem}
details.unit{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);margin-top:8px}
details.unit summary{list-style:none;cursor:pointer;padding:13px 16px;display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:baseline}
details.unit summary::-webkit-details-marker{display:none}
details.unit summary .n{font-family:var(--mono);font-size:.8rem;color:var(--muted)}
details.unit summary .t{font-weight:650;color:var(--ink);font-size:1.02rem}
details.unit summary .why{color:var(--muted);font-size:.9rem;grid-column:2}
details.unit summary .chev{color:var(--muted);transition:transform .2s;font-size:.9rem}
details.unit[open] summary .chev{transform:rotate(90deg)}
details.unit summary:hover .t{color:var(--azul)}
.unit-body{padding:4px 16px 18px;border-top:1px solid var(--line);font-size:.98rem}
.unit-body p{margin-top:10px;max-width:70ch}
.unit-body ul{margin:8px 0 0;padding-left:1.2em;max-width:70ch}
.unit-body li+li{margin-top:4px}
.unit-body .tablewrap{margin-top:12px}
.ex{display:grid;grid-template-columns:1fr 1fr;gap:4px 18px;margin-top:10px;padding:10px 14px;background:var(--surface-2);border-radius:var(--r-sm);font-size:.95rem}
.ex .es{font-style:normal;color:var(--ink);font-weight:600}
.ex .en{color:var(--muted)}
.trap{margin-top:12px;padding:10px 14px;border-left:3px solid var(--bad);background:var(--bad-soft);border-radius:0 var(--r-sm) var(--r-sm) 0;font-size:.94rem;max-width:70ch}
.trap b{color:var(--bad)}
.tip{margin-top:12px;padding:10px 14px;border-left:3px solid var(--good);background:var(--good-soft);border-radius:0 var(--r-sm) var(--r-sm) 0;font-size:.94rem;max-width:70ch}
.tip b{color:var(--good)}

/* ---------- quiz ---------- */
.quiz{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;margin-top:14px}
.quiz-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:10px}
.quiz-head .best{font-size:.85rem;color:var(--muted)}
.q-prompt{font-size:1.2rem;font-weight:600;color:var(--ink);margin:8px 0 12px;font-family:var(--display);font-variation-settings:"opsz" 24}
.q-prompt .blank{display:inline-block;min-width:3.2em;border-bottom:2px solid var(--sol);margin:0 .15em;text-align:center;color:var(--sol-deep)}
.opts{display:flex;flex-wrap:wrap;gap:8px}
.opt{padding:8px 14px;border-radius:8px;border:1px solid var(--line-strong);background:var(--surface);cursor:pointer;font-weight:600;font-size:.98rem;color:var(--text)}
.opt:hover{border-color:var(--azul);color:var(--azul)}
.opt.right{background:var(--good-soft);border-color:var(--good);color:var(--good)}
.opt.wrong{background:var(--bad-soft);border-color:var(--bad);color:var(--bad)}
.opt[disabled]{cursor:default}
.q-why{margin-top:12px;padding:10px 14px;background:var(--surface-2);border-radius:var(--r-sm);font-size:.95rem;min-height:1em}
.q-foot{display:flex;justify-content:space-between;align-items:center;margin-top:12px;gap:12px;flex-wrap:wrap;font-size:.9rem;color:var(--muted)}
.q-done{font-size:1.1rem;font-weight:650;color:var(--ink)}

/* ---------- drills ---------- */
.tool{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px 24px;box-shadow:var(--shadow)}
.tool-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.tool-head p{color:var(--muted);font-size:.95rem;max-width:56ch;margin-top:4px}
.controls{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;padding:12px 14px;background:var(--surface-2);border-radius:var(--r-sm);font-size:.9rem}
.controls label{display:inline-flex;align-items:center;gap:6px;cursor:pointer;font-weight:600}
.controls input[type=checkbox]{accent-color:var(--azul);width:15px;height:15px}
.controls select,.field input,.field select,.field textarea{font:inherit;font-size:.95rem;padding:7px 10px;border:1px solid var(--line-strong);border-radius:6px;background:var(--surface);color:var(--text)}
.prompt-big{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 18px;margin:18px 0 12px}
.prompt-big .verb{font-family:var(--display);font-size:2.3rem;font-weight:750;color:var(--ink);line-height:1;font-variation-settings:"opsz" 96}
.prompt-big .verb small{font-size:1rem;font-weight:500;color:var(--muted);font-family:var(--body);margin-left:8px}
.prompt-big .tag{font-family:var(--mono);font-size:.92rem;color:var(--azul);background:var(--azul-soft);padding:4px 9px;border-radius:6px}
.answer-row{display:flex;gap:8px;flex-wrap:wrap;align-items:stretch}
.answer-row input{flex:1;min-width:180px;font-family:var(--mono);font-size:1.15rem;padding:10px 12px;border:1.5px solid var(--line-strong);border-radius:8px;background:var(--surface);color:var(--text)}
.answer-row input:focus{border-color:var(--azul);outline:none;box-shadow:0 0 0 3px var(--azul-soft)}
.accents{display:flex;gap:4px;flex-wrap:wrap;margin-top:8px}
.accents button{font-family:var(--mono);font-size:1rem;padding:4px 9px;border:1px solid var(--line);border-radius:6px;background:var(--surface-2);cursor:pointer;color:var(--text)}
.accents button:hover{border-color:var(--azul);color:var(--azul)}
.verdict{margin-top:12px;padding:12px 14px;border-radius:var(--r-sm);font-size:1rem;min-height:2.6em}
.verdict.ok{background:var(--good-soft);color:var(--good);font-weight:600}
.verdict.no{background:var(--bad-soft);color:var(--bad)}
.verdict.no b{font-family:var(--mono);color:var(--text)}
.score{display:flex;gap:18px;flex-wrap:wrap;font-size:.9rem;color:var(--muted);margin-top:12px}
.score b{color:var(--ink);font-family:var(--mono)}

/* flashcards */
.fc{perspective:1200px;margin:16px 0 12px}
.fc-card{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:24px;gap:10px;cursor:pointer;user-select:none}
.fc-card .word{font-family:var(--display);font-size:2.6rem;font-weight:750;color:var(--ink);line-height:1;font-variation-settings:"opsz" 96}
.fc-card .pos{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:700}
.fc-card .meaning{font-size:1.4rem;font-weight:600;color:var(--azul)}
.fc-card .sent{font-size:1rem;color:var(--text);max-width:40ch}
.fc-card .sent-en{font-size:.92rem;color:var(--muted)}
.fc-card .hint{font-size:.85rem;color:var(--muted)}
.fc-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.fc-actions .btn{justify-content:center}
.fc-actions .again{border-color:var(--bad);color:var(--bad)}
.fc-actions .good{border-color:var(--good);color:var(--good)}
.fc-actions .easy{border-color:var(--azul);color:var(--azul)}
.fc-stats{display:flex;gap:16px;flex-wrap:wrap;font-size:.88rem;color:var(--muted);margin-top:12px}
.fc-stats b{color:var(--ink)}

/* coverage chart & bars */
.chart{width:100%;height:auto;display:block}
.chart text{font-family:var(--body);fill:var(--muted);font-size:12px}
.chart .grid line{stroke:var(--line);stroke-width:1}
.chart .axis line,.chart .axis path{stroke:var(--line-strong)}
.chart .lbl{fill:var(--text);font-weight:600}
.chart .bar{fill:var(--azul)}
.chart .bar.now{fill:var(--sol)}
.chart .line{fill:none;stroke:var(--azul);stroke-width:2}
.chart .area{fill:var(--azul);opacity:.12}
.chart .pt{fill:var(--azul);stroke:var(--surface);stroke-width:2}
.chart .pt.hot{fill:var(--sol)}

/* pronunciation */
.sound{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;align-items:baseline;padding:10px 0;border-bottom:1px solid var(--line)}
.sound:last-child{border-bottom:0}
.sound .g{font-family:var(--display);font-size:1.5rem;font-weight:750;color:var(--azul);font-variation-settings:"opsz" 40;min-width:52px}
.sound .g small{font-family:var(--mono);font-size:.8rem;color:var(--muted);font-weight:400;margin-left:6px}
.sound .d{font-size:.96rem}
.sound .d .w{font-weight:600;color:var(--ink)}
.say{display:inline-flex;align-items:center;gap:4px;font-size:.78rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--azul);background:var(--azul-soft);border:0;border-radius:999px;padding:3px 9px;cursor:pointer;vertical-align:middle}
.say:hover{background:var(--azul);color:var(--azul-ink)}
.say[disabled]{opacity:.45;cursor:not-allowed}

/* resources */
.res{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 14px;padding:12px 0;border-bottom:1px solid var(--line);align-items:start}
.res:last-child{border-bottom:0}
.res .n{font-weight:650;color:var(--ink)}
.res .n a{color:inherit;text-decoration:none;border-bottom:1px solid var(--line-strong)}
.res .n a:hover{color:var(--azul);border-color:var(--azul)}
.res .d{font-size:.94rem;color:var(--muted)}
.res .tags{justify-content:flex-end}

/* progress section */
.log-form{display:grid;grid-template-columns:auto auto auto 1fr auto;gap:10px;align-items:end}
.field{display:flex;flex-direction:column;gap:4px;font-size:.82rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.field input,.field select{text-transform:none;letter-spacing:0;font-weight:400;color:var(--text)}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}
.stat{background:var(--surface-2);border-radius:var(--r-sm);padding:12px 14px;display:flex;flex-direction:column;gap:2px}
.stat .k{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.stat .v{font-family:var(--display);font-size:1.6rem;font-weight:750;color:var(--ink);font-variation-settings:"opsz" 96;line-height:1.1}
.stat .v small{font-size:.9rem;color:var(--muted);font-family:var(--body);font-weight:600}
.loglist{list-style:none;margin:12px 0 0;padding:0;font-size:.92rem;max-height:220px;overflow:auto;border:1px solid var(--line);border-radius:var(--r-sm)}
.loglist li{display:grid;grid-template-columns:auto auto 1fr auto;gap:12px;padding:7px 12px;border-bottom:1px solid var(--line);align-items:center}
.loglist li:last-child{border-bottom:0}
.loglist .x{background:none;border:0;color:var(--muted);cursor:pointer;font-size:1rem;padding:0 4px}
.loglist .x:hover{color:var(--bad)}
.empty{padding:14px;color:var(--muted);font-size:.92rem;text-align:center}

details.faq{border-bottom:1px solid var(--line);padding:12px 0}
details.faq summary{cursor:pointer;font-weight:650;color:var(--ink);font-size:1.05rem;list-style:none;display:flex;justify-content:space-between;gap:12px}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary:after{content:"+";color:var(--muted);font-family:var(--mono)}
details.faq[open] summary:after{content:"–"}
details.faq .a{margin-top:8px;max-width:70ch;color:var(--text)}
details.faq .a p+p{margin-top:.6em}

footer{padding:40px 20px 60px;text-align:center;color:var(--muted);font-size:.9rem}
footer .brandline{font-family:var(--display);font-weight:700;color:var(--ink);font-size:1.1rem}

/* ---------- responsive ---------- */
@media (max-width:1000px){
  html{scroll-padding-top:calc(env(safe-area-inset-top,0px) + 114px)}
  .shell{grid-template-columns:1fr;gap:0}
  .sidenav{display:none}
  .mobile-nav{display:block;position:sticky;top:calc(env(safe-area-inset-top,0px) + 56px);z-index:29;background:var(--bg);border-bottom:1px solid var(--line);overflow-x:auto;-webkit-overflow-scrolling:touch}
  .mobile-nav ol{list-style:none;margin:0;padding:0 12px;display:flex;gap:2px;white-space:nowrap}
  .mobile-nav a{display:block;padding:10px 10px;font-size:.88rem;font-weight:650;color:var(--muted);text-decoration:none;border-bottom:2px solid transparent}
  .mobile-nav a.active{color:var(--azul);border-bottom-color:var(--azul)}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .stage-body{grid-template-columns:1fr}
  .stage-col+.stage-col{border-left:0;border-top:1px solid var(--line)}
  .grid.c3,.grid.c4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .log-form{grid-template-columns:1fr 1fr}
  .log-form .field.wide{grid-column:1/-1}
  .log-form .btn{grid-column:1/-1;justify-content:center}
}
@media (max-width:600px){
  body{font-size:16px}
  .grid.c2,.grid.c3,.grid.c4{grid-template-columns:1fr}
  .stage-head{grid-template-columns:auto 1fr;}
  .stage-meta{grid-column:1/-1;flex-direction:row;align-items:center;justify-content:flex-start;text-align:left}
  .ex{grid-template-columns:1fr}
  .road-stats{grid-template-columns:1fr 1fr 1fr;gap:8px}
  .road-stats .v{font-size:1.1rem}
  .fc-actions{grid-template-columns:1fr}
  .res{grid-template-columns:1fr}
  .res .tags{justify-content:flex-start}
  .sync #sync-text{display:none}
  .track .tick b{font-size:.62rem}
  .chart text{font-size:16px}
  .sound{grid-template-columns:1fr;gap:2px}
  .sound .g small{display:block;margin-left:0}
  .controls select,.field input,.field select,.kv input,.kv select,.answer-row input{font-size:16px}
}
.sidenav a:focus-visible,.mobile-nav a:focus-visible{outline-offset:-2px}
@media print{
  :root,:root[data-theme="dark"],:root:not([data-theme="light"]){--bg:#fff;--surface:#fff;--surface-2:#f2f4f8;--line:#ccc;--line-strong:#999;--text:#111;--muted:#444;--ink:#000;--azul:#1F4FB8;--azul-soft:#eef2fb;--sol-soft:#fff6d6;--good-soft:#e8f5ee;--bad-soft:#fbeae4;color-scheme:light}
  .topbar,.mobile-nav,.sidenav,.say,.accents,.answer-row,.controls,.fc-actions,.log-form{display:none!important}
  .shell{display:block}
  .tablewrap{overflow:visible}
  details.unit,details.faq{break-inside:avoid}
}


.track .tick b{line-height:1.15;text-align:center}
.track .tick.last b{transform:translateX(-42%)}
.track .tick.first b{transform:translateX(10%)}
.diffw{color:var(--bad);font-weight:700;text-decoration:underline;text-decoration-style:wavy}
.copied{color:var(--good);font-weight:650}


/* ============================================================
   Site additions: multi-page navigation, landing, pricing,
   gating, forms, planner print. Appended after base.css.
   ============================================================ */
.skip{position:absolute;left:-999px;top:8px;background:var(--azul);color:var(--azul-ink);padding:8px 12px;border-radius:6px;z-index:100}
.skip:focus{left:8px}
.topbar-in{gap:22px}
.mainnav{display:flex;gap:2px;margin-left:auto}
.mainnav a{padding:8px 10px;border-radius:6px;color:var(--muted);text-decoration:none;font-weight:600;font-size:.94rem;white-space:nowrap}
.mainnav a:hover{color:var(--text);background:var(--surface-2)}
.mainnav a.active{color:var(--azul);background:var(--azul-soft)}
.mainnav a.nav-pro{color:var(--sol-deep);background:var(--sol-soft);margin-left:6px}
.mainnav a.nav-pro:hover{background:var(--sol);color:#1a1200}
html.is-pro .mainnav a.nav-pro{display:none}
.menu-btn{display:none;margin-left:auto;width:40px;height:40px;border:1px solid var(--line);border-radius:8px;background:var(--surface);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px}
.mobile-menu{display:none;border-top:1px solid var(--line);background:var(--surface);padding:6px 12px 10px}
.mobile-menu a{display:block;padding:10px 8px;color:var(--text);text-decoration:none;font-weight:600;border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:0}
@media (max-width:1000px){
  .mainnav{display:none}
  .menu-btn{display:flex}
  .mobile-menu:not([hidden]){display:block}
}

/* page frame */
main.page{max-width:1240px;margin:0 auto;padding-inline:20px;padding-block:0 60px}
main.page>section:first-child{padding-top:44px}
main.narrow{max-width:880px;margin:0 auto;padding-inline:20px;padding-block:44px 60px}
main.narrow h1{font-size:clamp(2rem,4.5vw,3rem);margin-bottom:12px}
main.narrow h2{font-size:1.5rem;margin-top:34px;margin-bottom:8px}
main.narrow h3{margin-top:22px;margin-bottom:6px}
main.narrow p{margin-top:.7em;max-width:70ch}
main.narrow ul,main.narrow ol{max-width:70ch;padding-left:1.3em;margin:.6em 0}
main.narrow li+li{margin-top:.35em}
.page-head{padding-block:44px 8px;max-width:72ch}
.page-head h1{font-size:clamp(2.2rem,5vw,3.4rem);margin-top:8px}
.page-head .lede{font-size:1.18rem;color:var(--muted);margin-top:14px;max-width:62ch}
.updated{font-size:.85rem;color:var(--muted)}
.placeholder{background:var(--sol-soft);border:1px dashed var(--sol-deep);padding:2px 6px;border-radius:4px}

/* landing */
.land-hero{padding-block:56px 40px;border-bottom:1px solid var(--line)}
.land-hero .hero-grid{align-items:center}
.land-hero h1{font-size:clamp(2.5rem,6vw,4.2rem)}
.land-hero .lede{font-size:1.22rem;color:var(--muted);max-width:52ch;margin-top:18px}
.land-hero .cta{margin-top:26px}
.land-hero .fineprint{margin-top:14px;font-size:.88rem;color:var(--muted)}
.hero-demo{background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:20px 22px}
.hero-demo .k{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.hero-demo .prompt-big{margin:10px 0 8px}
.hero-demo .prompt-big .verb{font-size:2rem}
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding-block:28px;border-bottom:1px solid var(--line)}
.stat-band div{display:flex;flex-direction:column;gap:2px}
.stat-band .v{font-family:var(--display);font-size:1.9rem;font-weight:750;color:var(--ink);font-variation-settings:"opsz" 96;line-height:1.1}
.stat-band .k{font-size:.8rem;color:var(--muted);font-weight:600}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.feature{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.feature .ico{width:38px;height:38px;border-radius:9px;background:var(--azul-soft);color:var(--azul);display:grid;place-items:center;font-family:var(--display);font-weight:800;font-size:1.2rem;margin-bottom:12px}
.feature h3{margin-bottom:6px}
.feature p{font-size:.96rem;color:var(--muted)}
.feature a{font-weight:650}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;counter-reset:step}
.step{padding:18px 20px;border-left:3px solid var(--azul);background:var(--surface-2);border-radius:0 var(--r) var(--r) 0}
.step h3{margin-bottom:6px}
.step p{font-size:.96rem}
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:stretch}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:24px;display:flex;flex-direction:column;gap:14px}
.plan.pro{border-color:var(--sol);box-shadow:var(--shadow);position:relative}
.plan.pro:before{content:"Best value";position:absolute;top:-12px;left:22px;background:var(--sol);color:#1a1200;font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:999px}
.plan .name{font-family:var(--display);font-size:1.5rem;font-weight:750;color:var(--ink)}
.plan .price{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}
.plan .price .amt{font-family:var(--display);font-size:2.6rem;font-weight:800;color:var(--ink);line-height:1;font-variation-settings:"opsz" 96}
.plan .price .was{text-decoration:line-through;color:var(--muted);font-size:1.1rem}
.plan .price .per{color:var(--muted);font-size:.95rem}
.plan ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px;font-size:.97rem}
.plan li{padding-left:24px;position:relative}
.plan li:before{content:"✓";position:absolute;left:0;color:var(--good);font-weight:800}
.plan li.no{color:var(--muted)}
.plan li.no:before{content:"–";color:var(--line-strong)}
.plan .btn{justify-content:center;margin-top:auto}
.guarantee{display:flex;gap:14px;align-items:flex-start;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.guarantee .badge{flex:none;width:52px;height:52px;border-radius:50%;background:var(--good-soft);color:var(--good);display:grid;place-items:center;font-family:var(--display);font-weight:800;font-size:1.1rem}
.about{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;background:var(--surface-2);border-radius:var(--r);padding:20px}
.about .avatar{width:64px;height:64px;border-radius:50%;background:var(--azul);color:var(--azul-ink);display:grid;place-items:center;font-family:var(--display);font-weight:800;font-size:1.6rem}
.newsletter{background:var(--azul-soft);border-radius:14px;padding:26px 28px;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:20px;align-items:center}
.newsletter h3{margin-bottom:6px}
.newsletter p{color:var(--muted);font-size:.96rem}
.newsletter form{display:flex;gap:8px;flex-wrap:wrap}
.newsletter input[type=email]{flex:1;min-width:200px;font:inherit;padding:10px 12px;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface);color:var(--text)}
.newsletter[hidden]{display:none}
.section-title{display:flex;flex-direction:column;gap:6px;margin-bottom:22px;max-width:70ch}
section.land{padding-block:52px;border-bottom:1px solid var(--line)}
section.land:last-of-type{border-bottom:0}

/* gating */
.pro-badge{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:3px 9px;border-radius:999px;background:var(--sol-soft);color:var(--sol-deep);vertical-align:middle}
.free-badge{display:inline-flex;font-size:.72rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase;padding:3px 9px;border-radius:999px;background:var(--good-soft);color:var(--good);vertical-align:middle}
.gated{position:relative}
.gated.locked>*:not(.lock-card){filter:blur(3px);pointer-events:none;user-select:none;opacity:.55}
.lock-card{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:20px;z-index:5}
.lock-card>div{background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:22px 24px;max-width:420px;text-align:center;display:flex;flex-direction:column;gap:10px;align-items:center}
.lock-card h4{font-size:1.15rem}
.lock-card p{font-size:.95rem;color:var(--muted)}
.limit-bar{display:flex;align-items:center;gap:10px;font-size:.86rem;color:var(--muted);padding:8px 12px;background:var(--surface-2);border-radius:var(--r-sm);margin-bottom:12px}
.limit-bar .meter{flex:1}
.limit-bar b{color:var(--ink)}
html.is-pro .limit-bar{display:none}
.upsell{border:1px solid var(--sol);background:var(--sol-soft);border-radius:var(--r);padding:16px 18px;display:flex;gap:14px;align-items:center;flex-wrap:wrap;justify-content:space-between}
.upsell p{max-width:56ch}
html.is-pro .upsell,html.is-pro .free-only{display:none}
.pro-only{display:none}
html.is-pro .pro-only{display:initial}
html.is-pro div.pro-only,html.is-pro section.pro-only{display:block}
.license-box{background:var(--surface-2);border-radius:var(--r);padding:16px 18px}
.license-box form{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.license-box input{flex:1;min-width:220px;font-family:var(--mono);font-size:.95rem;padding:9px 12px;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface);color:var(--text)}
.license-status{margin-top:10px;font-size:.92rem}
.license-status.ok{color:var(--good);font-weight:650}
.license-status.no{color:var(--bad)}
.app-nav{position:sticky;top:calc(env(safe-area-inset-top,0px) + 57px);z-index:20;background:var(--bg);border-bottom:1px solid var(--line);overflow-x:auto;margin-inline:-20px;padding-inline:20px}
.app-nav ol{list-style:none;margin:0;padding:0;display:flex;gap:2px;white-space:nowrap}
.app-nav a{display:block;padding:11px 12px;font-size:.9rem;font-weight:650;color:var(--muted);text-decoration:none;border-bottom:2px solid transparent}
.app-nav a.active{color:var(--azul);border-bottom-color:var(--azul)}
.app-section{padding-block:40px;border-bottom:1px solid var(--line)}
.app-section:last-child{border-bottom:0}
.app-section .section-head{margin-bottom:18px}
.downloads{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.dl{display:flex;flex-direction:column;gap:6px;padding:16px 18px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
.dl b{color:var(--ink)}
.dl .small{color:var(--muted)}
.dl a{align-self:flex-start;margin-top:4px}

/* plan generator */
.plan-out{margin-top:16px}
.week{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px}
.day{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:10px;min-height:120px;display:flex;flex-direction:column;gap:4px;font-size:.86rem}
.day .d{font-weight:700;color:var(--ink);font-size:.8rem;letter-spacing:.05em;text-transform:uppercase}
.day .blk{display:flex;justify-content:space-between;gap:6px}
.day .blk b{font-family:var(--mono);font-size:.8rem;color:var(--azul);font-weight:500;white-space:nowrap}
.day.rest{background:var(--surface-2);color:var(--muted)}
@media (max-width:800px){.week{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* planner (print) */
.planner-page{max-width:900px;margin:0 auto;padding:32px 20px}
.planner-page h1{font-size:2.2rem}
.planner-page .meta{color:var(--muted);margin:6px 0 20px}
.pl-week{page-break-inside:avoid;break-inside:avoid;margin-top:22px;border:1px solid var(--line-strong);border-radius:8px;overflow:hidden}
.pl-week header{background:var(--surface-2);padding:8px 12px;font-weight:700;display:flex;justify-content:space-between;gap:12px}
.pl-week table{width:100%;border-collapse:collapse}
.pl-week td,.pl-week th{border-top:1px solid var(--line);padding:8px 10px;font-size:.9rem;vertical-align:top}
.pl-week th{background:transparent;color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em}
.pl-week td.box{width:60px;height:38px}
.pl-week td.note{min-width:180px}
.pl-check{display:grid;grid-template-columns:repeat(2,1fr);gap:6px 20px;margin-top:10px;font-size:.92rem}
.pl-check span:before{content:"☐ ";color:var(--muted)}
.print-btn{margin:16px 0}
@media print{
  .topbar,.sitefoot,.print-btn,.lock-card,.app-nav{display:none!important}
  .planner-page{padding:0;max-width:none}
  .pl-week{break-inside:avoid}
  body{background:#fff;color:#000}
}

/* footer */
.sitefoot{border-top:1px solid var(--line);background:var(--surface);padding:44px 20px 40px;text-align:left}
.foot-in{max-width:1240px;margin:0 auto;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,2fr);gap:32px}
.foot-brand .brandline{font-family:var(--display);font-weight:750;font-size:1.25rem;color:var(--ink)}
.foot-brand p{margin-top:6px;max-width:40ch}
.foot-social{display:flex;gap:10px;margin-top:12px}
.foot-social a{font-size:.85rem;font-weight:650}
.foot-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.foot-cols h4{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;font-family:var(--body)}
.foot-cols a{display:block;padding:4px 0;color:var(--text);text-decoration:none;font-size:.95rem}
.foot-cols a:hover{color:var(--azul)}
.foot-note{grid-column:1/-1;margin-top:10px;max-width:none}

/* thanks + legal */
.steps-list{counter-reset:s;list-style:none;padding:0;margin:16px 0 0;display:flex;flex-direction:column;gap:12px}
.steps-list li{counter-increment:s;display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.steps-list li:before{content:counter(s);width:30px;height:30px;border-radius:50%;background:var(--azul);color:var(--azul-ink);display:grid;place-items:center;font-weight:800;font-family:var(--display)}

@media (max-width:1000px){
  .feature-grid,.steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-band{grid-template-columns:repeat(2,1fr)}
  .foot-in{grid-template-columns:1fr}
}
@media (max-width:600px){
  .feature-grid,.steps,.compare,.newsletter,.downloads,.foot-cols{grid-template-columns:1fr}
  .about{grid-template-columns:1fr}
  .land-hero{padding-block:36px 28px}
  main.page>section:first-child{padding-top:28px}
  .app-nav a{padding:10px 9px;font-size:.84rem}
}