:root {
  color-scheme: light;
  --bg: #f7f4f4;
  --surface: #ffffff;
  --surface-2: #fbf8f8;
  --text: #21191a;
  --muted: #776b6d;
  --line: #eadfe0;
  --red: #b5121b;
  --red-2: #dc2630;
  --red-soft: #fae8ea;
  --red-softer: #fff4f4;
  --good: #167a4a;
  --warning: #a35b00;
  --shadow: 0 10px 30px rgba(71, 25, 29, .08);
  --shadow-soft: 0 4px 16px rgba(71, 25, 29, .06);
  --radius: 20px;
  --sidebar: 272px;
}
html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #080607;
  --surface: #120d0f;
  --surface-2: #181113;
  --text: #f7eeee;
  --muted: #bbaeb0;
  --line: #2c1e21;
  --red: #e3212c;
  --red-2: #ff4049;
  --red-soft: #321216;
  --red-softer: #1d0c0f;
  --good: #53c58c;
  --warning: #ffb04a;
  --shadow: 0 12px 34px rgba(0,0,0,.34);
  --shadow-soft: 0 4px 16px rgba(0,0,0,.25);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
button, input, select { font: inherit; }
button { cursor: pointer; }
.app-shell { min-height: 100vh; display: grid; grid-template-columns: var(--sidebar) 1fr; }
.sidebar { position: fixed; inset: 0 auto 0 0; width: var(--sidebar); padding: 24px 18px; background: linear-gradient(180deg, #a80c16 0%, #78070d 100%); color: #fff; display: flex; flex-direction: column; z-index: 40; box-shadow: 12px 0 32px rgba(76, 0, 6, .14); }
.brand { display: flex; gap: 12px; align-items: center; padding: 0 8px 22px; border-bottom: 1px solid rgba(255,255,255,.16); }
.brand-mark { width: 46px; height: 46px; border-radius: 15px; background: #fff; color: #a50c15; display: grid; place-items: center; font-size: 18px; font-weight: 900; box-shadow: 0 8px 20px rgba(60,0,5,.2); }
.brand strong, .brand span { display: block; }
.brand strong { font-size: 17px; letter-spacing: -.02em; }
.brand span { opacity: .75; font-size: 12px; margin-top: 2px; }
.nav-list { display: grid; gap: 6px; margin-top: 22px; }
.nav-item { width: 100%; border: 0; background: transparent; color: rgba(255,255,255,.78); display: grid; grid-template-columns: 34px 1fr; align-items: center; text-align: left; gap: 8px; padding: 11px 12px; border-radius: 12px; transition: .18s ease; }
.nav-item span { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: rgba(255,255,255,.09); font-size: 13px; font-weight: 800; }
.nav-item b { font-weight: 650; font-size: 13px; }
.nav-item:hover, .nav-item.active { background: rgba(255,255,255,.14); color: #fff; }
.nav-item.active span { background: #fff; color: #a50c15; }
.sidebar-footer { margin-top: auto; padding: 16px 8px 2px; }
.exam-pill { font-size: 12px; font-weight: 700; display: flex; gap: 8px; align-items: center; }
.exam-pill span { width: 8px; height: 8px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 4px rgba(255,255,255,.12); }
.sidebar-footer p { font-size: 11px; line-height: 1.5; opacity: .64; margin: 10px 0 0; }
.main { grid-column: 2; min-width: 0; }
.topbar { height: 82px; position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 16px; padding: 14px 30px; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(18px); border-bottom: 1px solid color-mix(in srgb, var(--line) 72%, transparent); }
.top-title { min-width: 0; }
.top-title small { display: block; color: var(--muted); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; font-weight: 750; }
.top-title h1 { margin: 3px 0 0; font-size: 22px; letter-spacing: -.035em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.top-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.deadline-mini { padding: 7px 11px; border: 1px solid var(--line); background: var(--surface); border-radius: 11px; line-height: 1; }
.deadline-mini span { font-size: 9px; color: var(--muted); text-transform: uppercase; display: block; margin-bottom: 4px; }
.deadline-mini strong { color: var(--red); font-size: 12px; }
.icon-btn { border: 1px solid var(--line); background: var(--surface); color: var(--text); width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center; box-shadow: var(--shadow-soft); }
.content { padding: 28px 30px 70px; max-width: 1540px; margin: 0 auto; }
.hero { display: grid; grid-template-columns: minmax(0,1.55fr) minmax(280px,.75fr); gap: 18px; margin-bottom: 18px; }
.hero-main { position: relative; overflow: hidden; border-radius: 26px; padding: 28px; background: linear-gradient(135deg,#a90e17,#d9232d); color: #fff; min-height: 240px; box-shadow: 0 18px 40px rgba(134,9,17,.22); }
.hero-main::after { content:""; position:absolute; width:300px; height:300px; right:-80px; top:-90px; border:55px solid rgba(255,255,255,.08); border-radius:50%; }
.hero-main .eyebrow { opacity:.75; text-transform:uppercase; letter-spacing:.09em; font-size:11px; font-weight:800; }
.hero-main h2 { font-size: clamp(28px,4vw,46px); line-height:1.04; letter-spacing:-.045em; max-width: 720px; margin: 12px 0 10px; }
.hero-main p { max-width: 650px; margin:0; opacity:.82; line-height:1.6; font-size:14px; }
.hero-actions { display:flex; flex-wrap:wrap; gap:10px; margin-top:22px; position:relative; z-index:1; }
.btn { border:0; border-radius:12px; padding:11px 15px; font-weight:750; font-size:13px; transition:.15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-white { background:#fff; color:#99101a; }
.btn-soft { background:rgba(255,255,255,.13); color:#fff; border:1px solid rgba(255,255,255,.18); }
.btn-red { background:var(--red); color:#fff; }
.btn-outline { background:var(--surface); color:var(--text); border:1px solid var(--line); }
.btn-danger { background:var(--red-soft); color:var(--red); border:1px solid color-mix(in srgb,var(--red) 20%, var(--line)); }
.hero-side { display:grid; gap:12px; }
.countdown { background:var(--surface); border:1px solid var(--line); border-radius:22px; padding:22px; box-shadow:var(--shadow-soft); }
.countdown .big { font-size:48px; letter-spacing:-.05em; font-weight:900; color:var(--red); line-height:1; }
.countdown strong { display:block; margin-top:6px; font-size:14px; }
.countdown p { color:var(--muted); margin:6px 0 0; font-size:12px; line-height:1.45; }
.card-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:14px; margin-bottom:18px; }
.metric-card { background:var(--surface); border:1px solid var(--line); border-radius:18px; padding:18px; box-shadow:var(--shadow-soft); }
.metric-top { display:flex; justify-content:space-between; gap:8px; align-items:flex-start; }
.metric-label { color:var(--muted); font-size:11px; text-transform:uppercase; letter-spacing:.06em; font-weight:800; }
.metric-icon { width:34px; height:34px; border-radius:10px; background:var(--red-soft); color:var(--red); display:grid; place-items:center; font-weight:900; }
.metric-value { font-size:29px; line-height:1; font-weight:900; letter-spacing:-.04em; margin:14px 0 8px; }
.metric-card p { color:var(--muted); font-size:11px; margin:0; line-height:1.4; }
.progress { height:8px; border-radius:999px; background:var(--red-soft); overflow:hidden; }
.progress > span { display:block; height:100%; border-radius:inherit; background:linear-gradient(90deg,var(--red),var(--red-2)); width:0; }
.progress.thin { height:5px; }
.section-grid { display:grid; grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr); gap:18px; }
.panel { background:var(--surface); border:1px solid var(--line); border-radius:22px; box-shadow:var(--shadow-soft); overflow:hidden; }
.panel-head { padding:19px 20px 14px; display:flex; justify-content:space-between; gap:12px; align-items:center; border-bottom:1px solid var(--line); }
.panel-head h3 { margin:0; font-size:15px; letter-spacing:-.02em; }
.panel-head p { margin:4px 0 0; font-size:11px; color:var(--muted); }
.panel-body { padding:18px 20px 20px; }
.pair-card { border:1px solid var(--line); background:var(--surface-2); border-radius:17px; padding:16px; }
.pair-title { display:flex; justify-content:space-between; gap:10px; margin-bottom:12px; }
.pair-title strong { font-size:14px; }
.tag { display:inline-flex; align-items:center; gap:4px; padding:5px 8px; border-radius:999px; background:var(--red-soft); color:var(--red); font-size:10px; font-weight:800; white-space:nowrap; }
.pair-columns { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
.course-mini { border:1px solid var(--line); border-radius:13px; padding:12px; background:var(--surface); }
.course-mini small { color:var(--muted); font-size:10px; text-transform:uppercase; font-weight:800; }
.course-mini b { display:block; font-size:12px; line-height:1.45; margin-top:5px; }
.course-mini .done { color:var(--good); }
.domain-list { display:grid; gap:14px; }
.domain-row-top { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:7px; }
.domain-row-top b { font-size:12px; }
.domain-row-top span { color:var(--muted); font-size:10px; }
.toolbar { display:flex; gap:10px; align-items:center; flex-wrap:wrap; margin-bottom:16px; }
.search { flex:1; min-width:220px; position:relative; }
.search input { width:100%; height:44px; border-radius:13px; border:1px solid var(--line); background:var(--surface); color:var(--text); padding:0 14px 0 40px; outline:none; }
.search::before { content:'⌕'; position:absolute; left:14px; top:10px; color:var(--muted); }
.search input:focus { border-color:color-mix(in srgb,var(--red) 55%, var(--line)); box-shadow:0 0 0 3px var(--red-soft); }
.filter-group { display:flex; padding:4px; background:var(--surface); border:1px solid var(--line); border-radius:13px; }
.filter-group button { border:0; background:transparent; color:var(--muted); padding:7px 10px; border-radius:9px; font-size:11px; font-weight:750; }
.filter-group button.active { background:var(--red-soft); color:var(--red); }
.course-head { background:linear-gradient(135deg,var(--surface),var(--red-softer)); border:1px solid var(--line); border-radius:22px; padding:22px; margin-bottom:15px; display:grid; grid-template-columns:1fr auto; gap:16px; }
.course-head h2 { margin:0 0 6px; font-size:22px; }
.course-head p { margin:0; color:var(--muted); font-size:12px; line-height:1.5; }
.course-badge { align-self:start; text-align:right; }
.course-badge strong { display:block; color:var(--red); font-size:28px; }
.course-badge span { color:var(--muted); font-size:10px; }
.module-list { display:grid; gap:10px; }
details.module { background:var(--surface); border:1px solid var(--line); border-radius:17px; overflow:hidden; box-shadow:var(--shadow-soft); }
details.module[open] { border-color:color-mix(in srgb,var(--red) 24%, var(--line)); }
.module summary { list-style:none; display:grid; grid-template-columns:minmax(0,1fr) auto; gap:16px; align-items:center; padding:17px 18px; cursor:pointer; }
.module summary::-webkit-details-marker { display:none; }
.module-title { display:flex; gap:12px; align-items:flex-start; min-width:0; }
.module-num { width:36px; height:36px; border-radius:11px; background:var(--red-soft); color:var(--red); display:grid; place-items:center; font-size:11px; font-weight:900; flex:0 0 auto; }
.module-title h3 { margin:0; font-size:14px; line-height:1.35; }
.module-title p { margin:5px 0 0; color:var(--muted); font-size:11px; line-height:1.45; }
.module-stat { width:120px; text-align:right; }
.module-stat b { display:block; font-size:12px; margin-bottom:6px; }
.module-content { border-top:1px solid var(--line); padding:0 16px 15px; }
.module-meta { padding:14px 2px 10px; display:flex; flex-wrap:wrap; gap:7px; }
.lesson-row { display:grid; grid-template-columns:32px minmax(0,1fr) auto; gap:10px; align-items:center; min-height:52px; border-top:1px solid color-mix(in srgb,var(--line) 75%, transparent); }
.lesson-row:first-of-type { border-top:0; }
.lesson-check { appearance:none; width:20px; height:20px; border-radius:7px; border:1.5px solid color-mix(in srgb,var(--muted) 48%, transparent); background:var(--surface); display:grid; place-content:center; margin:0; }
.lesson-check:checked { background:var(--red); border-color:var(--red); }
.lesson-check:checked::after { content:'✓'; color:#fff; font-size:13px; font-weight:900; }
.lesson-main { min-width:0; padding:9px 0; }
.lesson-main b { font-size:12px; line-height:1.4; display:block; }
.lesson-main small { color:var(--muted); font-size:10px; display:flex; gap:6px; flex-wrap:wrap; margin-top:4px; }
.lesson-row.completed .lesson-main b { color:var(--muted); text-decoration:line-through; text-decoration-thickness:1px; }
.lesson-time { color:var(--muted); font-size:10px; white-space:nowrap; }
.objective-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:14px; }
.objective-card { background:var(--surface); border:1px solid var(--line); border-radius:20px; padding:19px; box-shadow:var(--shadow-soft); }
.objective-top { display:flex; gap:12px; align-items:flex-start; }
.objective-code { width:48px; height:48px; border-radius:14px; background:var(--red); color:#fff; display:grid; place-items:center; font-weight:900; flex:0 0 auto; }
.objective-card h3 { margin:2px 0 5px; font-size:14px; line-height:1.35; }
.objective-card p { margin:0; color:var(--muted); font-size:11px; line-height:1.5; }
.objective-progress { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin:15px 0; }
.progress-box { background:var(--surface-2); border:1px solid var(--line); border-radius:13px; padding:10px; }
.progress-box span { display:flex; justify-content:space-between; color:var(--muted); font-size:10px; margin-bottom:7px; }
.topic-list { margin:12px 0 0; padding:0; list-style:none; display:grid; gap:5px; }
.topic-list li { position:relative; padding-left:14px; color:var(--muted); font-size:10.5px; line-height:1.45; }
.topic-list li::before { content:''; position:absolute; left:0; top:.58em; width:5px; height:5px; border-radius:50%; background:var(--red); }
.compare-list { display:grid; gap:12px; }
.compare-row { background:var(--surface); border:1px solid var(--line); border-radius:19px; padding:17px; box-shadow:var(--shadow-soft); }
.compare-head { display:grid; grid-template-columns:minmax(0,1fr) auto; gap:12px; align-items:start; }
.compare-head h3 { font-size:14px; margin:0 0 5px; }
.compare-head p { margin:0; color:var(--muted); font-size:11px; }
.compare-score { min-width:74px; text-align:right; }
.compare-score b { color:var(--red); font-size:20px; display:block; }
.compare-score small { color:var(--muted); font-size:9px; }
.compare-courses { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-top:13px; }
.compare-course { border:1px solid var(--line); background:var(--surface-2); border-radius:14px; padding:12px; }
.compare-course .course-label { display:flex; justify-content:space-between; gap:8px; font-size:10px; color:var(--muted); font-weight:800; }
.next-lesson { margin-top:9px; padding:9px; background:var(--surface); border:1px solid var(--line); border-radius:10px; font-size:11px; line-height:1.45; }
.next-lesson em { display:block; color:var(--red); font-size:9px; font-style:normal; font-weight:800; text-transform:uppercase; margin-bottom:3px; }
.plan-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:14px; margin-bottom:16px; }
.pace-card { padding:20px; border-radius:20px; background:var(--surface); border:1px solid var(--line); box-shadow:var(--shadow-soft); }
.pace-card small { color:var(--muted); text-transform:uppercase; letter-spacing:.06em; font-size:10px; font-weight:800; }
.pace-card strong { display:block; font-size:31px; margin:8px 0 5px; letter-spacing:-.04em; }
.pace-card p { margin:0; color:var(--muted); font-size:11px; }
.timeline { display:grid; gap:0; }
.timeline-step { position:relative; padding:0 0 22px 34px; }
.timeline-step::before { content:''; position:absolute; left:10px; top:18px; bottom:-2px; width:1px; background:var(--line); }
.timeline-step:last-child::before { display:none; }
.timeline-dot { position:absolute; left:3px; top:2px; width:15px; height:15px; border-radius:50%; background:var(--red); box-shadow:0 0 0 5px var(--red-soft); }
.timeline-step h4 { margin:0 0 4px; font-size:13px; }
.timeline-step p { margin:0; color:var(--muted); font-size:11px; line-height:1.5; }
.data-actions { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:13px; }
.action-card { border:1px solid var(--line); border-radius:18px; padding:18px; background:var(--surface); }
.action-card h3 { margin:0 0 6px; font-size:14px; }
.action-card p { color:var(--muted); font-size:11px; line-height:1.5; min-height:50px; }
.notice { border:1px solid color-mix(in srgb,var(--red) 18%, var(--line)); background:var(--red-softer); border-radius:15px; padding:13px 14px; color:var(--muted); font-size:11px; line-height:1.55; }
.notice strong { color:var(--text); }
.empty { padding:28px; text-align:center; color:var(--muted); font-size:12px; }
.toast { position:fixed; right:24px; bottom:24px; z-index:100; background:var(--text); color:var(--surface); padding:11px 14px; border-radius:11px; font-size:12px; box-shadow:var(--shadow); opacity:0; transform:translateY(12px); pointer-events:none; transition:.2s ease; }
.toast.show { opacity:1; transform:translateY(0); }
.mobile-nav { display:none; }
.mobile-only { display:none; }
@media (max-width: 1100px) {
  .card-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .hero { grid-template-columns:1fr; }
  .hero-side { grid-template-columns:1fr 1fr; }
  .section-grid { grid-template-columns:1fr; }
  .objective-grid { grid-template-columns:1fr; }
  .plan-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width: 820px) {
  :root { --sidebar: 280px; }
  .app-shell { display:block; }
  .main { margin-left:0; }
  .sidebar { transform:translateX(-105%); transition:.22s ease; box-shadow:20px 0 50px rgba(0,0,0,.28); }
  .sidebar.open { transform:translateX(0); }
  .mobile-only { display:grid; }
  .topbar { height:70px; padding:11px 16px; }
  .top-title h1 { font-size:18px; }
  .top-title small { font-size:9px; }
  .deadline-mini { display:none; }
  .content { padding:18px 14px 95px; }
  .mobile-nav { display:grid; position:fixed; z-index:35; left:12px; right:12px; bottom:max(10px, env(safe-area-inset-bottom)); grid-template-columns:repeat(4,1fr); padding:6px; border:1px solid var(--line); background:color-mix(in srgb,var(--surface) 92%, transparent); backdrop-filter:blur(20px); border-radius:18px; box-shadow:0 12px 40px rgba(0,0,0,.2); }
  .mobile-nav button { border:0; background:transparent; color:var(--muted); border-radius:12px; padding:7px 4px; display:grid; place-items:center; gap:2px; }
  .mobile-nav button span { font-size:17px; font-weight:800; }
  .mobile-nav button small { font-size:9px; }
  .mobile-nav button.active { background:var(--red-soft); color:var(--red); }
  .hero-main { padding:22px; min-height:220px; }
  .hero-side { grid-template-columns:1fr; }
  .pair-columns, .compare-courses { grid-template-columns:1fr; }
  .plan-grid, .data-actions { grid-template-columns:1fr; }
  .course-head { grid-template-columns:1fr; }
  .course-badge { text-align:left; }
}
@media (max-width: 520px) {
  .card-grid { grid-template-columns:1fr 1fr; gap:9px; }
  .metric-card { padding:14px; border-radius:16px; }
  .metric-value { font-size:24px; }
  .metric-icon { width:30px; height:30px; }
  .hero-main h2 { font-size:30px; }
  .panel-head, .panel-body { padding-left:15px; padding-right:15px; }
  .module summary { grid-template-columns:1fr; }
  .module-stat { width:auto; text-align:left; margin-left:48px; }
  .objective-progress { grid-template-columns:1fr; }
  .objective-card { padding:15px; }
  .lesson-row { grid-template-columns:28px minmax(0,1fr) auto; }
  .toast { left:14px; right:14px; bottom:90px; text-align:center; }
}

/* v1.1 — caderno digital, materiais e referência V4 */
.tag-blue { background:#e8f0ff; color:#2457a7; }
html[data-theme="dark"] .tag-blue { background:#101d35; color:#83aef7; }
.tag-neutral { background:var(--surface-2); color:var(--muted); border:1px solid var(--line); }
.lesson-v4 { color:#2457a7; }
html[data-theme="dark"] .lesson-v4 { color:#83aef7; }
.notebook-layout { display:grid; grid-template-columns:minmax(0,1.3fr) minmax(300px,.7fr); gap:16px; }
.form-stack { display:grid; gap:14px; }
.field { display:grid; gap:7px; }
.field > span { font-size:10px; text-transform:uppercase; letter-spacing:.055em; color:var(--muted); font-weight:800; }
.field input,.field select,.field textarea { width:100%; border:1px solid var(--line); background:var(--surface-2); color:var(--text); border-radius:12px; padding:11px 12px; outline:none; resize:vertical; }
.field input:focus,.field select:focus,.field textarea:focus { border-color:color-mix(in srgb,var(--red) 55%,var(--line)); box-shadow:0 0 0 3px var(--red-soft); }
.field textarea { line-height:1.55; }
.mini-heading { margin:0 0 10px; font-size:11px; text-transform:uppercase; letter-spacing:.055em; color:var(--muted); }
.topic-list.big li { font-size:12px; margin-bottom:6px; }
.source-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:13px; }
.source-card { background:var(--surface); border:1px solid var(--line); border-radius:18px; padding:17px; box-shadow:var(--shadow-soft); }
.source-card h3 { margin:12px 0 6px; font-size:14px; line-height:1.35; }
.source-card p { margin:0; color:var(--muted); font-size:11px; line-height:1.55; }
.comparison-table { display:grid; gap:0; }
.weight-row { display:grid; grid-template-columns:minmax(0,1fr) auto auto; gap:14px; align-items:center; padding:12px 0; border-top:1px solid var(--line); }
.weight-row:first-child { border-top:0; }
.weight-row b { font-size:11px; }
.weight-row span { font-size:10px; color:var(--muted); white-space:nowrap; }
.weight-row strong { color:var(--red); }
.ref-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:9px; }
.ref-objective { display:grid; grid-template-columns:42px 1fr; gap:10px; align-items:start; border:1px solid var(--line); background:var(--surface-2); border-radius:12px; padding:11px; }
.ref-objective b { width:38px; height:30px; display:grid; place-items:center; border-radius:9px; background:var(--red-soft); color:var(--red); font-size:10px; }
.ref-objective span { font-size:11px; line-height:1.45; }
@media (max-width: 1100px) {
  .source-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .notebook-layout { grid-template-columns:1fr; }
}
@media (max-width: 680px) {
  .source-grid,.ref-grid { grid-template-columns:1fr; }
  .weight-row { grid-template-columns:1fr 1fr; gap:6px 12px; }
  .weight-row b { grid-column:1 / -1; }
}