/* =========================================================
   TRILHA DE APROVAÇÃO — design tokens
   Paleta: grafite-tinta + dourado de aprovação
   Tipografia: Sora (títulos) / Inter (texto) / JetBrains Mono (dados)
   ========================================================= */

:root{
  /* cores - tema escuro (padrão) */
  --bg: #0B0F14;
  --surface: #131A24;
  --surface-2: #1B2430;
  --surface-hover: #212C3A;
  --border: #232D3B;
  --text: #E8ECF1;
  --text-muted: #8A94A6;
  --text-faint: #5C6779;

  --gold: #E8B14D;
  --gold-soft: rgba(232,177,77,.14);
  --success: #34D399;
  --success-soft: rgba(52,211,153,.14);
  --danger: #F87171;
  --danger-soft: rgba(248,113,113,.14);
  --info: #60A5FA;

  --font-display: 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 8px 24px rgba(0,0,0,.35);

  --sidebar-w: 248px;
  --sidebar-w-collapsed: 76px;
  --topbar-h: 64px;

  --ease: cubic-bezier(.4,0,.2,1);
}

[data-theme="light"]{
  --bg: #F4F6F9;
  --surface: #FFFFFF;
  --surface-2: #F0F2F6;
  --surface-hover: #E7EAF0;
  --border: #E1E5EC;
  --text: #131A24;
  --text-muted: #5B6472;
  --text-faint: #98A1AF;
  --shadow: 0 8px 24px rgba(20,30,50,.08);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  -webkit-font-smoothing:antialiased;
  transition:background .2s var(--ease), color .2s var(--ease);
}
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; transition-duration:0.001ms !important; }
}

/* =============== LAYOUT =============== */
.app-shell{
  display:flex;
  min-height:100vh;
}

.sidebar{
  width:var(--sidebar-w);
  flex-shrink:0;
  background:var(--surface);
  border-right:1px solid var(--border);
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  transition:width .22s var(--ease);
  position:sticky;
  top:0;
  height:100vh;
  z-index:40;
}
.sidebar.collapsed{ width:var(--sidebar-w-collapsed); }
.sidebar.collapsed .brand-text,
.sidebar.collapsed .nav-item span,
.sidebar.collapsed .nav-group-toggle span,
.sidebar.collapsed .chev,
.sidebar.collapsed .nav-submenu,
.sidebar.collapsed .streak-mini span{ display:none; }
.sidebar.collapsed .nav-item,
.sidebar.collapsed .nav-group-toggle{ justify-content:center; }

.sidebar-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:20px 16px;
  border-bottom:1px solid var(--border);
}
.brand{ display:flex; align-items:center; gap:10px; overflow:hidden; }
.brand-mark{
  width:30px; height:30px; flex-shrink:0; border-radius:50%;
  background:radial-gradient(circle at 35% 30%, var(--gold), #8a6420 90%);
  box-shadow:0 0 0 3px var(--gold-soft);
}
.brand-text{ display:flex; flex-direction:column; line-height:1.15; white-space:nowrap; }
.brand-text strong{ font-family:var(--font-display); font-size:15px; font-weight:700; }
.brand-text small{ font-size:11px; color:var(--text-muted); letter-spacing:.02em; }

.icon-btn{
  background:transparent; border:1px solid transparent; color:var(--text-muted);
  border-radius:var(--radius-sm); padding:8px; display:flex; align-items:center; justify-content:center;
  transition:background .15s var(--ease), color .15s var(--ease);
}
.icon-btn:hover{ background:var(--surface-hover); color:var(--text); }

.nav{ padding:12px; display:flex; flex-direction:column; gap:2px; overflow-y:auto; flex:1; }
.nav-item{
  display:flex; align-items:center; gap:12px;
  padding:10px 12px; border-radius:var(--radius-sm);
  color:var(--text-muted); font-size:14px; font-weight:500;
  white-space:nowrap; border:none; background:transparent; width:100%; text-align:left;
  transition:background .15s var(--ease), color .15s var(--ease);
}
.nav-item svg{ flex-shrink:0; }
.nav-item:hover{ background:var(--surface-hover); color:var(--text); }
.nav-item.active{ background:var(--gold-soft); color:var(--gold); }

.nav-group-toggle{ position:relative; justify-content:flex-start; }
.nav-group-toggle .chev{ margin-left:auto; transition:transform .18s var(--ease); }
.nav-group.open .nav-group-toggle .chev{ transform:rotate(180deg); }
.nav-submenu{
  display:none; flex-direction:column; padding:4px 0 4px 42px; gap:1px;
}
.nav-group.open .nav-submenu{ display:flex; }
.nav-submenu a{
  padding:8px 10px; font-size:13.5px; color:var(--text-muted); border-radius:var(--radius-sm);
}
.nav-submenu a:hover{ color:var(--text); background:var(--surface-hover); }
.nav-submenu a.active{ color:var(--gold); }

.sidebar-foot{ padding:16px; border-top:1px solid var(--border); }
.streak-mini{
  display:flex; align-items:center; gap:8px; font-size:13px; font-weight:600;
  background:var(--surface-2); border-radius:var(--radius-sm); padding:10px 12px;
  font-family:var(--font-mono);
}

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

.topbar{
  height:var(--topbar-h); flex-shrink:0; display:flex; align-items:center; gap:14px;
  padding:0 24px; border-bottom:1px solid var(--border); position:sticky; top:0;
  background:var(--bg); z-index:20;
}
.topbar h1{ font-family:var(--font-display); font-size:19px; font-weight:700; margin:0; flex:1; }
.only-mobile{ display:none; }

.view{ padding:24px; max-width:1280px; width:100%; margin:0 auto; }

.sidebar-overlay{
  display:none; position:fixed; inset:0; background:rgba(0,0,0,.5); z-index:30;
}
.sidebar-overlay.show{ display:block; }

@media (max-width:900px){
  .sidebar{
    position:fixed; left:0; top:0; height:100%;
    transform:translateX(-100%);
    transition:transform .22s var(--ease);
  }
  .sidebar.mobile-open{ transform:translateX(0); }
  .only-mobile{ display:flex; }
  .view{ padding:16px; }
  .topbar{ padding:0 16px; }
}

/* =============== COMPONENTES =============== */

.btn{
  display:inline-flex; align-items:center; gap:6px;
  border:1px solid var(--border); background:var(--surface-2); color:var(--text);
  padding:10px 16px; border-radius:var(--radius-sm); font-size:14px; font-weight:600;
  transition:transform .1s var(--ease), background .15s var(--ease), border-color .15s var(--ease);
}
.btn:hover{ background:var(--surface-hover); }
.btn:active{ transform:scale(.97); }
.btn-primary{ background:var(--gold); border-color:var(--gold); color:#1a1305; }
.btn-primary:hover{ background:#f0bd63; }
.btn-danger{ background:transparent; border-color:var(--danger); color:var(--danger); }
.btn-danger:hover{ background:var(--danger-soft); }
.btn-sm{ padding:8px 12px; font-size:13px; }
.btn-ghost{ background:transparent; border-color:transparent; }
.btn-ghost:hover{ background:var(--surface-hover); }
.btn-block{ width:100%; justify-content:center; }

.card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  padding:20px; animation:fadeUp .35s var(--ease);
}
.card-title{
  font-family:var(--font-display); font-size:14px; font-weight:600; color:var(--text-muted);
  margin:0 0 12px; text-transform:uppercase; letter-spacing:.04em;
}

@keyframes fadeUp{
  from{ opacity:0; transform:translateY(6px); }
  to{ opacity:1; transform:translateY(0); }
}

.stat-grid{
  display:grid; grid-template-columns:repeat(auto-fit, minmax(160px,1fr));
  gap:14px; margin-bottom:20px;
}
.stat-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius);
  padding:18px; animation:fadeUp .35s var(--ease);
}
.stat-card .label{ font-size:12.5px; color:var(--text-muted); font-weight:500; }
.stat-card .value{
  font-family:var(--font-mono); font-size:26px; font-weight:600; margin-top:6px;
}
.stat-card.gold .value{ color:var(--gold); }
.stat-card.success .value{ color:var(--success); }
.stat-card.danger .value{ color:var(--danger); }
.stat-card.info .value{ color:var(--info); }

.grid-2{ display:grid; grid-template-columns:1.3fr 1fr; gap:16px; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
@media (max-width:900px){
  .grid-2, .grid-3{ grid-template-columns:1fr; }
}

.chart-wrap{ position:relative; height:280px; }
.chart-wrap.tall{ height:320px; }

/* trilha de estudo (streak strip) - elemento assinatura */
.streak-strip{ display:flex; gap:4px; flex-wrap:wrap; margin-top:8px; }
.streak-dot{
  width:14px; height:14px; border-radius:4px; background:var(--surface-2);
  border:1px solid var(--border);
}
.streak-dot[data-level="1"]{ background:rgba(232,177,77,.25); border-color:transparent; }
.streak-dot[data-level="2"]{ background:rgba(232,177,77,.55); border-color:transparent; }
.streak-dot[data-level="3"]{ background:var(--gold); border-color:transparent; }

/* filtros */
.filter-bar{
  display:flex; gap:8px; flex-wrap:wrap; align-items:center; margin-bottom:18px;
}
.chip{
  padding:8px 14px; border-radius:999px; font-size:13px; font-weight:600;
  background:var(--surface); border:1px solid var(--border); color:var(--text-muted);
  transition:all .15s var(--ease);
}
.chip:hover{ color:var(--text); }
.chip.active{ background:var(--gold-soft); border-color:var(--gold); color:var(--gold); }
input[type="date"]{
  background:var(--surface); border:1px solid var(--border); color:var(--text);
  padding:8px 10px; border-radius:var(--radius-sm); font-family:var(--font-mono); font-size:13px;
}

/* tabelas */
.table-wrap{ overflow-x:auto; }
table{ width:100%; border-collapse:collapse; font-size:14px; }
thead th{
  text-align:left; padding:10px 12px; color:var(--text-muted); font-weight:600;
  font-size:12.5px; text-transform:uppercase; letter-spacing:.03em;
  border-bottom:1px solid var(--border); white-space:nowrap;
}
tbody td{ padding:12px; border-bottom:1px solid var(--border); white-space:nowrap; }
tbody tr{ transition:background .15s var(--ease); }
tbody tr:hover{ background:var(--surface-2); }
tbody tr.clickable{ cursor:pointer; }
.num{ font-family:var(--font-mono); }
.pct-bar-wrap{ display:flex; align-items:center; gap:8px; min-width:120px; }
.pct-bar{ flex:1; height:6px; border-radius:4px; background:var(--surface-2); overflow:hidden; }
.pct-bar > span{ display:block; height:100%; background:var(--gold); }

.badge{ padding:3px 9px; border-radius:999px; font-size:12px; font-weight:600; }
.badge.success{ background:var(--success-soft); color:var(--success); }
.badge.danger{ background:var(--danger-soft); color:var(--danger); }
.badge.muted{ background:var(--surface-2); color:var(--text-muted); }

/* toolbar de listas */
.toolbar{ display:flex; gap:10px; align-items:center; margin-bottom:16px; flex-wrap:wrap; }
.search-input{
  flex:1; min-width:180px; background:var(--surface); border:1px solid var(--border);
  color:var(--text); padding:10px 14px; border-radius:var(--radius-sm); font-size:14px;
}

/* modais */
.modal-root:empty{ display:none; }
.modal-backdrop{
  position:fixed; inset:0; background:rgba(0,0,0,.55); display:flex; align-items:center;
  justify-content:center; z-index:100; padding:20px; animation:fadeIn .18s var(--ease);
}
@keyframes fadeIn{ from{opacity:0;} to{opacity:1;} }
.modal{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-lg);
  width:100%; max-width:520px; max-height:90vh; overflow-y:auto; padding:24px;
  box-shadow:var(--shadow); animation:fadeUp .2s var(--ease);
}
.modal h2{ font-family:var(--font-display); margin:0 0 18px; font-size:18px; }
.form-row{ margin-bottom:14px; display:flex; flex-direction:column; gap:6px; }
.form-row label{ font-size:13px; font-weight:600; color:var(--text-muted); }
.form-row input, .form-row select, .form-row textarea{
  background:var(--surface-2); border:1px solid var(--border); color:var(--text);
  padding:10px 12px; border-radius:var(--radius-sm); font-size:14px; font-family:inherit;
}
.form-row textarea{ resize:vertical; min-height:60px; }
.form-grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.toggle-group{ display:flex; gap:8px; }
.toggle-group button{
  flex:1; padding:10px; border-radius:var(--radius-sm); border:1px solid var(--border);
  background:var(--surface-2); color:var(--text-muted); font-weight:600; font-size:13.5px;
}
.toggle-group button.on.correta{ background:var(--success-soft); border-color:var(--success); color:var(--success); }
.toggle-group button.on.errada{ background:var(--danger-soft); border-color:var(--danger); color:var(--danger); }
.modal-actions{ display:flex; gap:10px; margin-top:20px; }

/* toasts */
.toast-root{ position:fixed; bottom:20px; right:20px; display:flex; flex-direction:column; gap:8px; z-index:200; }
.toast{
  background:var(--surface); border:1px solid var(--border); color:var(--text);
  padding:12px 16px; border-radius:var(--radius-sm); font-size:13.5px; box-shadow:var(--shadow);
  animation:fadeUp .2s var(--ease); border-left:3px solid var(--gold);
}
.toast.success{ border-left-color:var(--success); }
.toast.danger{ border-left-color:var(--danger); }

/* editais */
.edital-topic{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding:10px 12px; border-radius:var(--radius-sm); border:1px solid var(--border);
  margin-bottom:6px; background:var(--surface-2);
}
.edital-materia{ margin-bottom:18px; }
.edital-materia > h3{ font-family:var(--font-display); font-size:15px; margin:0 0 10px; }
.status-select{
  background:var(--surface); border:1px solid var(--border); color:var(--text);
  padding:6px 10px; border-radius:999px; font-size:12.5px; font-weight:600;
}
.progress-ring-wrap{ display:flex; align-items:center; gap:18px; }
.progress-ring-num{ font-family:var(--font-mono); font-size:28px; font-weight:700; color:var(--gold); }

/* empty state */
.empty-state{
  text-align:center; padding:50px 20px; color:var(--text-muted);
}
.empty-state svg{ opacity:.5; margin-bottom:12px; }
.empty-state p{ margin:4px 0 16px; font-size:14px; }

/* util */
.flex{ display:flex; align-items:center; }
.gap-8{ gap:8px; }
.gap-12{ gap:12px; }
.mb-12{ margin-bottom:12px; }
.mt-12{ margin-top:12px; }
.text-muted{ color:var(--text-muted); }
.section-title{ font-family:var(--font-display); font-size:17px; font-weight:700; margin:28px 0 14px; }
.section-title:first-child{ margin-top:0; }

/* linhas de tabela clicáveis (ex: disciplina -> assuntos -> assunto) */
tr.clickable{ cursor:pointer; transition:background .15s var(--ease); }
tr.clickable:hover{ background:var(--surface-hover); }

/* timeline de tentativas (tela de assunto) */
.timeline{ position:relative; padding-left:22px; margin-top:4px; }
.timeline::before{
  content:''; position:absolute; left:5px; top:6px; bottom:6px; width:2px;
  background:var(--border);
}
.timeline-item{ position:relative; margin-bottom:16px; }
.timeline-item:last-child{ margin-bottom:0; }
.timeline-dot{
  position:absolute; left:-22px; top:18px; width:12px; height:12px; border-radius:50%;
  background:var(--gold); border:2px solid var(--surface); box-shadow:0 0 0 2px var(--gold);
}
.timeline-card{
  background:var(--surface); border:1px solid var(--border); border-radius:var(--radius-sm);
  padding:14px 16px;
}
.timeline-card-head{
  display:flex; align-items:center; justify-content:space-between; gap:8px; margin-bottom:8px;
}
.timeline-date{ font-family:var(--font-mono); font-weight:600; font-size:13.5px; }
.timeline-stats{
  display:flex; flex-wrap:wrap; gap:14px; font-size:13.5px; color:var(--text-muted);
}
.timeline-stats strong{ color:var(--text); font-family:var(--font-mono); }
.timeline-taxa{
  font-family:var(--font-mono); font-weight:700; color:var(--gold); margin-left:auto;
}
.timeline-obs{
  margin-top:10px; padding-top:10px; border-top:1px dashed var(--border);
  font-size:13px; color:var(--text-muted); white-space:pre-wrap;
}