/* ============================================================
   ENADE Prep — estilos da aplicação
   ============================================================ */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--on-surface);
  background: radial-gradient(circle at 0% 0%, #f0f4f8 0%, #e4e9ed 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}
.material-symbols-outlined {
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
  vertical-align: middle;
  user-select: none;
}
.icon-fill { font-variation-settings: "FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24; }

/* -------- Top bar -------- */
.topbar {
  background: var(--surface-container-low);
  border-bottom: 1px solid var(--outline-variant);
  position: sticky; top: 0; z-index: 50;
}
.topbar-inner {
  display: flex; justify-content: space-between; align-items: center;
  height: 64px; padding: 0 var(--margin-desktop);
  max-width: var(--container-max); margin: 0 auto;
}
.brand { font-size: 24px; font-weight: 700; color: var(--primary); letter-spacing: -0.01em; }
.topbar .who { font-size: 14px; color: var(--on-surface-variant); font-weight: 500; }

/* -------- Layout base -------- */
main.canvas {
  flex: 1; width: 100%; max-width: var(--container-max);
  margin: 0 auto; padding: var(--stack-lg) var(--margin-desktop) 64px;
}
.screen { display: none; animation: fade 0.25s ease; }
.screen.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.section-head h1 {
  font-size: 32px; font-weight: 600; color: var(--primary);
  letter-spacing: -0.01em; margin: 0 0 8px;
}
.section-head p { font-size: 16px; color: var(--on-surface-variant); margin: 0; max-width: 640px; }

/* -------- Botões -------- */
.btn {
  font-family: var(--font); font-size: 14px; font-weight: 600; letter-spacing: 0.01em;
  border: none; border-radius: var(--radius-lg); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 20px; transition: opacity .15s, transform .1s, background .15s;
}
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: var(--on-primary); box-shadow: var(--shadow-1); }
.btn-primary:hover:not(:disabled) { opacity: .9; }
.btn-secondary { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-secondary:hover { background: var(--surface-container-high); }
.btn-text { background: transparent; color: var(--on-surface-variant); padding: 8px 12px; }
.btn-text:hover { color: var(--primary); }
.btn-block { width: 100%; padding: 16px; }

/* -------- Card genérico -------- */
.card {
  background: var(--surface-container-lowest);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-1);
}

/* ============================================================
   TELA 1 — Identificação
   ============================================================ */
.login-wrap { max-width: 440px; margin: 32px auto; }
.login-hero { text-align: center; margin-bottom: var(--stack-lg); }
.login-badge {
  width: 64px; height: 64px; border-radius: var(--radius-xl);
  background: var(--primary-container); color: var(--on-primary-container);
  display: inline-flex; align-items: center; justify-content: center; margin-bottom: 16px;
}
.login-badge .material-symbols-outlined { font-size: 32px; }
.login-hero h1 { font-size: 32px; font-weight: 600; color: var(--primary); margin: 0 0 8px; }
.login-hero p { color: var(--on-surface-variant); margin: 0; }
.login-card { padding: var(--stack-lg); }
.field { margin-bottom: var(--gutter); }
.field label { display: block; font-size: 14px; font-weight: 500; color: var(--on-surface-variant); margin-bottom: 8px; }
.field .input-wrap { position: relative; }
.field .input-wrap .material-symbols-outlined {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--on-surface-variant); pointer-events: none;
}
.field input {
  width: 100%; padding: 12px 16px 12px 40px; font-family: var(--font); font-size: 16px;
  background: #fff; border: 1px solid var(--outline-variant); border-radius: var(--radius-lg);
  outline: none; transition: border .15s, box-shadow .15s;
}
.field input:focus { border-color: var(--primary); box-shadow: 0 0 0 2px var(--primary); }
.field.error input { border-color: var(--error); }
.field .msg-error { color: var(--error); font-size: 12px; margin-top: 6px; display: none; }
.field.error .msg-error { display: block; }

.resume-banner {
  background: var(--secondary-container); color: var(--on-secondary-container);
  border-radius: var(--radius-lg); padding: 16px; margin-bottom: 24px;
  display: none; align-items: center; gap: 12px; font-size: 14px;
}
.resume-banner.show { display: flex; }
.resume-banner .actions { margin-left: auto; display: flex; gap: 8px; }
.resume-banner button { font-size: 13px; padding: 6px 12px; }

/* ============================================================
   TELA 2 — Cursos
   ============================================================ */
.course-grid {
  display: grid; gap: var(--gutter); margin-top: var(--stack-lg);
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.course-card {
  background: var(--surface-container-lowest); border: 1px solid var(--outline-variant);
  border-radius: var(--radius-xl); overflow: hidden; cursor: pointer;
  display: flex; flex-direction: column; transition: box-shadow .3s, transform .15s;
}
.course-card:hover { box-shadow: var(--shadow-2); transform: translateY(-2px); }
.course-card .banner {
  height: 96px; background: var(--primary-container); color: var(--on-primary-container);
  display: flex; align-items: center; justify-content: center;
}
.course-card .banner .material-symbols-outlined { font-size: 48px; }
.course-card .body { padding: var(--stack-md); display: flex; flex-direction: column; gap: 12px; flex: 1; }
.course-card h3 { font-size: 20px; font-weight: 600; color: var(--primary); margin: 0; }
.course-card .meta { font-size: 12px; font-weight: 500; color: var(--on-surface-variant); display: flex; align-items: center; gap: 6px; }
.course-card .meta .material-symbols-outlined { font-size: 16px; }

/* ============================================================
   TELA 3 — Questionário
   ============================================================ */
.quiz-wrap { max-width: 860px; margin: 0 auto; }
.progress-head { margin-bottom: var(--stack-lg); }
.progress-head .row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.progress-head .q-count { font-size: 14px; font-weight: 700; color: var(--primary); }
.progress-head .q-pct { font-size: 12px; color: var(--on-surface-variant); }
.progress-track { width: 100%; height: 4px; background: var(--surface-container-highest); border-radius: var(--radius-full); overflow: hidden; }
.progress-fill { height: 100%; background: var(--primary); width: 0; transition: width .4s ease; }

.q-card { padding: var(--stack-lg); }
.q-area {
  display: inline-block; padding: 5px 14px; margin-bottom: 16px;
  background: var(--primary-container); color: var(--primary-fixed);
  border-radius: var(--radius-full); font-size: 12px; font-weight: 600; letter-spacing: 0.01em;
}
.q-flag-btn { float: right; background: none; border: none; cursor: pointer; color: var(--outline); }
.q-flag-btn.on { color: var(--warning); }
.q-stem { font-size: 22px; font-weight: 600; line-height: 1.35; color: var(--on-surface); margin: 0 0 20px; white-space: pre-wrap; }
.q-figure { margin: 20px 0; border: 1px solid var(--outline-variant); border-radius: var(--radius-lg); overflow: hidden; }
.q-figure img { display: block; width: 100%; max-height: 320px; object-fit: contain; background: var(--surface-bright); padding: 16px; }
.q-code {
  margin: 16px 0; background: #0d1b2a; color: #e6edf3; border-radius: var(--radius-lg);
  padding: 16px; overflow-x: auto; font-family: "Consolas", "Menlo", monospace; font-size: 14px; line-height: 1.5;
}

.alts { display: flex; flex-direction: column; gap: 8px; margin-top: 24px; }
.alt {
  display: flex; gap: 16px; align-items: flex-start; padding: 16px;
  border: 1px solid var(--outline-variant); border-radius: var(--radius); cursor: pointer;
  transition: background .15s, border .15s;
}
.alt:hover { background: var(--surface-container-low); }
.alt.selected { background: var(--secondary-container); border-color: var(--primary); }
.alt input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--primary); }
.alt .alt-letter { font-weight: 700; color: var(--primary); }
.alt .alt-text { font-size: 16px; line-height: 1.5; }

.quiz-nav { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin: 24px 0; flex-wrap: wrap; }
.quiz-nav .mid { display: flex; gap: 8px; align-items: center; }
.timer-chip {
  display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500;
  background: var(--surface-container); color: var(--on-surface-variant);
  padding: 8px 12px; border-radius: var(--radius-lg);
}

/* Navegador de questões (grade de bolinhas) */
.q-nav-grid { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.q-dot {
  width: 36px; height: 36px; border-radius: var(--radius); border: 1px solid var(--outline-variant);
  background: #fff; cursor: pointer; font-size: 13px; font-weight: 600; color: var(--on-surface-variant);
}
.q-dot.answered { background: var(--secondary-container); border-color: var(--primary); color: var(--on-secondary-container); }
.q-dot.current { outline: 2px solid var(--primary); }
.q-dot.flagged { position: relative; }
.q-dot.flagged::after { content: "flag"; font-family: "Material Symbols Outlined"; position: absolute; top: -6px; right: -6px; font-size: 14px; color: var(--warning); }

/* ============================================================
   TELA 4 — Resumo
   ============================================================ */
.summary-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr); gap: 24px; align-items: start; }
@media (max-width: 1024px) { .summary-grid { grid-template-columns: 1fr; } }

.review-list { overflow: hidden; }
.review-list .list-head {
  background: var(--surface-container-low); padding: 16px 24px;
  border-bottom: 1px solid var(--outline-variant); display: flex; justify-content: space-between;
  align-items: center; gap: 12px; flex-wrap: wrap;
}
.review-list .list-head h2 { font-size: 20px; margin: 0; }
.badge { font-size: 12px; font-weight: 600; background: var(--primary-container); color: var(--primary-fixed); padding: 5px 14px; border-radius: var(--radius-full); white-space: nowrap; letter-spacing: 0.01em; }

.review-row {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 24px; border-bottom: 1px solid var(--outline-variant);
  transition: background .15s;
}
.review-row:last-child { border-bottom: none; }
.review-row:hover { background: var(--surface-container-low); }
.review-row.missing { background: rgba(186, 26, 26, 0.04); }
.review-row.missing:hover { background: rgba(186, 26, 26, 0.08); }
.rr-num {
  flex: 0 0 auto; width: 28px; text-align: center;
  font-weight: 700; color: var(--primary); font-size: 14px;
}
.rr-main { flex: 1 1 auto; min-width: 0; }               /* min-width:0 habilita as reticências */
.rr-txt {
  display: flex; align-items: center; gap: 6px;
  font-size: 15px; color: var(--on-surface);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.rr-txt .flag-ic { flex: 0 0 auto; font-size: 16px; color: var(--warning); }
.rr-sub { font-size: 12px; color: var(--secondary); font-style: italic; margin-top: 3px; }
.rr-sub.miss { color: var(--error); font-style: normal; font-weight: 500; }
.rr-side { flex: 0 0 auto; display: flex; align-items: center; gap: 10px; }
.rr-status {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: var(--radius-full);
  white-space: nowrap;
}
.rr-status .material-symbols-outlined { font-size: 16px; }
.rr-status.ok { color: var(--secondary); background: rgba(199, 223, 253, 0.45); }
.rr-status.no { color: var(--on-error-container); background: var(--error-container); }
.rr-edit {
  flex: 0 0 auto; background: transparent; border: none; cursor: pointer;
  color: var(--primary); font-family: var(--font); font-size: 13px; font-weight: 600;
  padding: 6px 10px; border-radius: var(--radius); transition: background .15s;
}
.rr-edit:hover { background: var(--surface-container-high); }
@media (max-width: 560px) {
  .review-row { padding: 12px 16px; gap: 12px; }
  .rr-status .rr-status-txt { display: none; }             /* mantém só o ícone em telas estreitas */
  .rr-status { padding: 5px; }
}

.submit-panel { position: sticky; top: 88px; }
@media (max-width: 1024px) { .submit-panel { position: static; } }
.submit-card { padding: 24px; }
.submit-card h3 { font-size: 20px; color: var(--primary); margin: 0 0 16px; }
.stat-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.stat { padding: 16px; border-radius: var(--radius-lg); background: var(--surface-container); }
.stat.ans { background: rgba(199, 223, 253, 0.4); }
.stat.miss { background: rgba(255, 218, 214, 0.4); }
.stat .k { font-size: 12px; font-weight: 500; color: var(--on-surface-variant); }
.stat .v { font-size: 24px; font-weight: 600; }
.stat.miss .v { color: var(--error); }
.note { margin-top: 16px; font-size: 12px; font-style: italic; color: var(--on-surface-variant); line-height: 1.4; }

/* ============================================================
   TELA 5 — Resultado / Gabarito
   ============================================================ */
.result-hero { text-align: center; max-width: 560px; margin: 0 auto 32px; }
.score-ring {
  width: 160px; height: 160px; border-radius: 50%; margin: 0 auto 16px;
  display: grid; place-items: center; background: conic-gradient(var(--primary) var(--deg,0deg), var(--surface-container-high) 0deg);
}
.score-ring .inner {
  width: 128px; height: 128px; border-radius: 50%; background: var(--surface-container-lowest);
  display: grid; place-items: center; text-align: center;
}
.score-ring .n { font-size: 40px; font-weight: 700; color: var(--primary); line-height: 1; }
.score-ring .l { font-size: 12px; color: var(--on-surface-variant); }
.result-hero h1 { font-size: 32px; color: var(--primary); margin: 8px 0; }
.result-hero p { color: var(--on-surface-variant); margin: 0; }

.gabarito { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.gab-item { padding: 20px 24px; }
.gab-item .head { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; }
.gab-item .num { font-weight: 700; color: var(--primary); }
.gab-item .verdict { font-size: 13px; font-weight: 600; display: inline-flex; align-items: center; gap: 4px; white-space: nowrap; }
.gab-item .verdict.ok { color: var(--success); }
.gab-item .verdict.no { color: var(--error); }
.gab-item .verdict.blank { color: var(--warning); }
.gab-item .stem { font-weight: 600; margin: 8px 0 12px; line-height: 1.4; }
.gab-alt { padding: 10px 14px; border-radius: var(--radius); font-size: 15px; line-height: 1.45; border: 1px solid transparent; margin-bottom: 6px; }
.gab-alt.correct { background: rgba(46, 125, 67, 0.12); border-color: var(--success); }
.gab-alt.wrong { background: rgba(186, 26, 26, 0.08); border-color: var(--error); }
.gab-alt .tag { font-weight: 700; margin-right: 8px; }
.gab-alt .pill { float: right; font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: var(--radius-full); }
.gab-alt.correct .pill { background: var(--success); color: #fff; }
.gab-alt.wrong .pill { background: var(--error); color: #fff; }
.gab-explain {
  margin-top: 12px; padding: 14px; background: var(--surface-container-low);
  border-left: 3px solid var(--primary); border-radius: var(--radius); font-size: 14px; line-height: 1.5;
}
.gab-explain strong { color: var(--primary); }

/* -------- Toast / feedback de envio -------- */
.toast {
  position: fixed; left: 50%; bottom: 32px; transform: translateX(-50%);
  background: var(--inverse-surface, #2c3134); color: #edf1f5; padding: 14px 20px;
  border-radius: var(--radius-lg); box-shadow: var(--shadow-2); z-index: 100;
  font-size: 14px; display: none;
}
.toast.show { display: block; }
.toast.err { background: var(--error); }

/* -------- Footer -------- */
footer.app-footer {
  background: var(--surface-dim); border-top: 1px solid var(--outline-variant);
  padding: 16px var(--margin-desktop); margin-top: auto;
}
footer.app-footer .inner { max-width: var(--container-max); margin: 0 auto; font-size: 14px; color: var(--on-surface-variant); text-align: center; }

@media (max-width: 640px) {
  main.canvas { padding: var(--stack-md) var(--margin-mobile) 48px; }
  .topbar-inner { padding: 0 var(--margin-mobile); }
  .q-stem { font-size: 19px; }
  .section-head h1 { font-size: 24px; }
}