/* Intensivo SM — estilo compartilhado das aulas
   Mobile-first. Funciona sem JS; o JS só adiciona timer e checklists. */

@font-face {
  font-family: 'Amsterdam Four';
  src: url('fonts/amsterdam-four-ttf.ttf') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Amsterdam Four';
  src: url('fonts/amsterdam-four-ttf.ttf') format('truetype');
  font-weight: bold;
  font-style: normal;
  font-display: swap;
}

:root{
  --paper:#EEF1EE; --surface:#FFFFFF; --surface-2:#F4F7F4;
  --ink:#131C1A; --ink-2:#465350; --ink-3:#6F7B78;
  --rule:#D5DBD6; --accent:#2E6E84; --accent-ink:#FFFFFF;
  --good:#3E7D5A; --warn:#A3491F; --warn-bg:#FBEFE7; --gold:#9A6A14;
  --shadow:0 1px 2px rgba(19,28,26,.05), 0 6px 20px -12px rgba(19,28,26,.22);
  --maxw:760px; --radius:14px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --paper:#0F1513; --surface:#161D1B; --surface-2:#1C2523;
    --ink:#E7ECE8; --ink-2:#A9B4B0; --ink-3:#7E8986;
    --rule:#2A3431; --accent:#7CC0D6; --accent-ink:#0F1513;
    --good:#8DC9A6; --warn:#E8956B; --warn-bg:#2A1E17; --gold:#E0B25C;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -14px rgba(0,0,0,.7);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --paper:#0F1513; --surface:#161D1B; --surface-2:#1C2523;
  --ink:#E7ECE8; --ink-2:#A9B4B0; --ink-3:#7E8986;
  --rule:#2A3431; --accent:#7CC0D6; --accent-ink:#0F1513;
  --good:#8DC9A6; --warn:#E8956B; --warn-bg:#2A1E17; --gold:#E0B25C;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 8px 24px -14px rgba(0,0,0,.7);
  color-scheme:dark;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%; text-size-adjust:100%}
body{
  margin:0; background:var(--paper); color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:17px; line-height:1.6; -webkit-font-smoothing:antialiased;
  padding-left:env(safe-area-inset-left); padding-right:env(safe-area-inset-right);
  -webkit-tap-highlight-color:transparent;
}
h1,h2,h3,h4{font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;font-weight:700;margin:0;line-height:1.15;text-wrap:balance}
p{margin:0}
p+p{margin-top:.7em}
a{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 18px}
.mono{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}
.eyebrow{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* barra fixa */
.topbar{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 90%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--rule);padding-top:env(safe-area-inset-top)}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:56px;container-type:inline-size}
.topbar .brand{display:inline-flex;align-items:center;gap:10px;min-width:0;text-decoration:none;color:inherit}
.topbar-logo{width:34px;height:34px;object-fit:contain;flex-shrink:0;filter:drop-shadow(0 2px 4px rgba(0,0,0,.35))}
.topbar .eyebrow{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.brand-text-full{display:inline}
.brand-text-short{display:none}
@container (max-width:680px){.brand-text-full{display:none}.brand-text-short{display:inline}}
@media (max-width:680px){.brand-text-full{display:none}.brand-text-short{display:inline}}
.topbar nav{display:flex;gap:4px;flex-shrink:0}
.topbar a{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;padding:0 10px;border-radius:10px;text-decoration:none;color:var(--ink-2);font-size:14px;font-weight:600}
.topbar a:hover{background:var(--surface-2)}
.topbar a[aria-disabled="true"]{opacity:.35;pointer-events:none}
.topbar a.topbar-brand{display:inline-flex;align-items:center;justify-content:center;font-family:'Amsterdam Four','Alex Brush',cursive;font-size:21px;font-weight:normal;letter-spacing:.02em;color:#ffffff !important;line-height:1;white-space:nowrap;min-height:38px;padding:3px 18px 6px 16px;border-radius:999px;background:linear-gradient(135deg, #b91c1c 0%, #dc2626 30%, #ea580c 70%, #f59e0b 100%);border:1px solid rgba(255,255,255,0.35);box-shadow:0 3px 12px rgba(220,38,38,0.35);text-shadow:0 1px 3px rgba(0,0,0,0.4);transition:all .2s ease;box-sizing:border-box}
.topbar a.topbar-brand .topbar-brand-text{margin-top:-2px}
.topbar a.topbar-brand:hover{background:linear-gradient(135deg, #b91c1c 0%, #dc2626 50%, #ea580c 100%);box-shadow:0 4px 16px rgba(220,38,38,0.55);transform:translateY(-1px);opacity:1}
.topbar a.topbar-brand:active{transform:translateY(0);box-shadow:0 2px 8px rgba(220,38,38,0.4)}
@media (max-width:480px){.topbar a.topbar-brand{font-size:18px;min-height:34px;padding:2px 14px 4px 12px}}

/* abertura */
.hero{padding:40px 0 10px}
.hero h1{font-size:clamp(30px,7vw,46px);letter-spacing:-.015em;margin-top:12px}
.hero h1 em{font-style:normal;color:var(--gold)}
.thesis{margin-top:18px;font-size:clamp(17px,2.4vw,20px);line-height:1.5;color:var(--ink-2);border-left:3px solid var(--gold);padding-left:16px}
.thesis strong{color:var(--ink)}

/* seções */
section{margin-top:40px}
.sec-head{display:flex;align-items:baseline;gap:12px;margin-bottom:14px}
.sec-head h2{font-size:clamp(23px,5vw,30px)}
.sec-head .eyebrow{white-space:nowrap}

/* cartões */
.card{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px 18px}
.card+.card{margin-top:14px}
.card h3{font-size:21px}
.card .lede{margin-top:8px;color:var(--ink-2)}
figure{margin:0}
.fig img{border-radius:10px;background:#fff;margin:0 auto}
.fig figcaption{margin-top:12px;padding-top:10px;border-top:1px solid var(--rule);font-size:14px;line-height:1.5;color:var(--ink-2)}
.fig .credit{display:block;margin-top:6px;font-size:12px;color:var(--ink-3)}
.idea{margin-top:16px}
.idea .image{margin-top:14px;padding:12px;border-radius:10px;background:var(--surface-2);border:1px dashed var(--rule);font-size:15.5px;color:var(--ink-2)}
.idea .image b{color:var(--ink)}

/* bloco de exercício */
.block{position:relative}
.block-top{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.chip{display:inline-flex;align-items:center;gap:8px;font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-size:13px;color:var(--ink-3);letter-spacing:.04em}
.chip b{color:var(--ink);font-weight:600}
.steps{margin:14px 0 0;padding:0;list-style:none;counter-reset:s;display:grid;gap:10px}
.steps li{counter-increment:s;position:relative;padding-left:34px;line-height:1.5}
.steps li::before{content:counter(s);position:absolute;left:0;top:2px;width:24px;height:24px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font-family:ui-monospace,Menlo,monospace;font-size:13px;font-weight:600;display:grid;place-items:center}
.fields{display:grid;gap:10px;margin-top:16px}
@media (min-width:640px){.fields{grid-template-columns:1fr 1fr}.fields .span{grid-column:1/-1}}
.field{background:var(--surface-2);border:1px solid var(--rule);border-radius:10px;padding:13px 14px;font-size:15.5px;color:var(--ink-2)}
.field h4{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-weight:600;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-bottom:7px}
.field.feel h4{color:var(--good)}
.field.warn{background:var(--warn-bg);border-color:transparent}
.field.warn h4{color:var(--warn)}
.field strong{color:var(--ink)}

/* timer */
.timer{display:inline-flex;align-items:center;gap:6px}
.timer button{min-height:44px;min-width:44px;padding:0 14px;border-radius:999px;border:1px solid var(--rule);background:var(--surface);cursor:pointer;font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:8px;touch-action:manipulation}
.timer button.primary{background:var(--accent);color:var(--accent-ink);border-color:transparent}
.timer output{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;font-variant-numeric:tabular-nums;font-size:15px;min-width:4ch;text-align:center}
.timer.running button.primary{background:var(--warn)}
.timer.done output{color:var(--good);font-weight:700}
.timer .reset{padding:0 10px}

/* tabela de rotina */
.routine{width:100%;border-collapse:collapse;margin-top:12px;font-size:15.5px}
.routine th,.routine td{text-align:left;padding:10px 8px;border-top:1px solid var(--rule);vertical-align:top}
.routine th{font-family:ui-monospace,Menlo,monospace;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);font-weight:600;border-top:none}
.routine td.min{font-family:ui-monospace,Menlo,monospace;white-space:nowrap;color:var(--ink-3)}
.routine td strong{color:var(--ink)}

/* checklist de dias */
.days{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:14px}
.days label{display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px 4px;border:1px solid var(--rule);border-radius:10px;background:var(--surface-2);cursor:pointer;font-size:13px;color:var(--ink-2);min-height:64px;justify-content:center;user-select:none}
.days input{width:22px;height:22px;margin:0;accent-color:var(--accent)}
.days label:has(input:checked){background:var(--surface);border-color:var(--good);color:var(--ink)}
.days label:has(input:checked) span{font-weight:700}
.record{margin-top:14px;padding:13px 14px;border-radius:10px;background:var(--surface-2);border:1px solid var(--rule);font-size:15.5px;color:var(--ink-2);display:flex;gap:10px;align-items:flex-start}
.record strong{color:var(--ink)}

/* passou? */
.checks{margin:12px 0 0;padding:0;list-style:none;display:grid;gap:8px}
.checks label{display:flex;gap:12px;align-items:flex-start;padding:12px 12px;border:1px solid var(--rule);border-radius:10px;background:var(--surface);cursor:pointer;line-height:1.45}
.checks input{width:22px;height:22px;flex:none;margin-top:2px;accent-color:var(--good)}
.checks label:has(input:checked){border-color:var(--good)}

/* avisos */
.rule{margin-top:20px;padding:14px 16px;border-radius:10px;background:var(--warn-bg);color:var(--ink-2);font-size:15.5px;border-left:3px solid var(--warn)}
.rule strong{color:var(--warn)}
.next{margin-top:16px;padding:14px 16px;border-radius:10px;background:var(--surface-2);border:1px dashed var(--rule);font-size:15.5px;color:var(--ink-2)}

/* rodapé */
footer{margin-top:56px;padding:22px 0 calc(40px + env(safe-area-inset-bottom));color:var(--ink-3);font-size:13.5px;line-height:1.6}
footer .wrap{border-top:1px solid var(--rule);padding-top:18px}
.footnav{display:flex;justify-content:space-between;gap:10px;margin-bottom:16px}
.footnav a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border-radius:10px;border:1px solid var(--rule);background:var(--surface);text-decoration:none;color:var(--ink);font-weight:600;font-size:15px}
.footnav a[aria-disabled="true"]{opacity:.35;pointer-events:none}

/* índice */
.lessons{margin:20px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.lessons a{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;padding:14px 14px;border:1px solid var(--rule);border-radius:12px;background:var(--surface);text-decoration:none;color:var(--ink);box-shadow:var(--shadow)}
.lessons .num{font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--ink-3);letter-spacing:.08em;white-space:nowrap}
.lessons .t{font-weight:700;font-size:17px;min-width:0}
.lessons .s{display:block;font-weight:400;font-size:14px;color:var(--ink-2);margin-top:2px}
.lessons .soon{opacity:.55;pointer-events:none}
.lessons .tag{font-size:12px;color:var(--ink-3);white-space:nowrap}
.brand-title-script{
  font-family:'Amsterdam Four','Alex Brush',cursive;
  font-size:27px;
  font-weight:normal;
  display:block;
  line-height:1.2;
  letter-spacing:.02em;
  color:var(--ink);
  padding:4px 0 6px;
}
.brand-title-script + .s{
  margin-top:6px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .brand-title-script{color:#ffffff;text-shadow:0 2px 10px rgba(0,0,0,.7)}}
:root[data-theme="dark"] .brand-title-script{color:#ffffff;text-shadow:0 2px 10px rgba(0,0,0,.7)}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media print{.topbar,.timer,.footnav{display:none}.card{box-shadow:none;break-inside:avoid}}