/* Academia de Projetos — identidade visual (PRD §5.1)
   Azul-marinho #0A2240 · Dourado #C9A961 · Branco · Cinzas #F3F5F7 e #333B45 */
:root {
  --navy: #0a2240;
  --navy-2: #13325c;
  --gold: #c9a961;
  --gold-dark: #8a6d2c;
  --white: #ffffff;
  --bg: #f3f5f7;
  --ink: #333b45;
  --muted: #5d6673;
  --line: #dde2e8;
  --ok: #1e7a4a;
  --ok-bg: #e6f4ec;
  --warn: #8a5a00;
  --warn-bg: #fdf3dc;
  --err: #a12a2a;
  --err-bg: #fbe9e9;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(10, 34, 64, .06), 0 4px 14px rgba(10, 34, 64, .06);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --focus: 3px solid #c9a961;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.55; font-size: 16px; min-height: 100vh; display: flex; flex-direction: column; }
h1, h2, h3, h4 { color: var(--navy); line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.1rem); }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.08rem; }
p { margin: 0 0 .8em; }
a { color: var(--navy-2); }
:focus-visible { outline: var(--focus); outline-offset: 2px; }
[hidden] { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.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; }

.skip-link { position: absolute; left: 8px; top: -60px; background: var(--gold); color: var(--navy); padding: 8px 14px; border-radius: 6px; font-weight: 700; z-index: 100; text-decoration: none; }
.skip-link:focus { top: 8px; }

/* Cabeçalho (UI-01) */
.site-header { background: var(--navy); color: var(--white); border-bottom: 3px solid var(--gold); position: sticky; top: 0; z-index: 20; }
.header-inner { max-width: 1180px; margin: 0 auto; padding: 10px 20px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--white); text-decoration: none; font-weight: 700; }
.brand-mark { display: inline-grid; place-items: center; width: 38px; height: 38px; border-radius: 8px; background: var(--gold); color: var(--navy); font-weight: 800; letter-spacing: .5px; }
.brand-name { font-size: 1.05rem; }
.main-nav { display: flex; gap: 4px; flex-wrap: wrap; flex: 1; }
.main-nav a { color: #dfe6f0; text-decoration: none; padding: 7px 12px; border-radius: 6px; font-weight: 600; font-size: .95rem; }
.main-nav a:hover { background: var(--navy-2); color: var(--white); }
.main-nav a[aria-current="page"] { background: var(--navy-2); color: var(--gold); box-shadow: inset 0 -2px 0 var(--gold); }
.account { display: flex; align-items: center; gap: 10px; font-size: .92rem; }
.account .who { color: #dfe6f0; }
.account .role { background: var(--gold); color: var(--navy); border-radius: 4px; padding: 1px 6px; font-size: .75rem; font-weight: 700; margin-left: 4px; }

/* Banner de ambiente (UI-02) */
.env-banner { background: var(--warn-bg); color: var(--warn); border-bottom: 1px solid #ecd9a6; font-size: .9rem; }
.env-banner .inner { max-width: 1180px; margin: 0 auto; padding: 8px 20px; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.env-banner strong { color: #6a4400; }
.env-banner.online { background: #e8eef7; color: var(--navy-2); border-bottom-color: #c9d6ea; }
.env-banner.error { background: var(--err-bg); color: var(--err); border-bottom-color: #f0c4c4; }

.main { flex: 1; width: 100%; max-width: 1180px; margin: 0 auto; padding: 28px 20px 48px; }
.main:focus { outline: none; }
.loading { color: var(--muted); }

/* Botões */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid transparent; border-radius: 8px; padding: 9px 16px; font: inherit; font-weight: 650; font-size: .95rem; cursor: pointer; text-decoration: none; line-height: 1.2; min-height: 40px; }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--navy); color: var(--white); }
.btn-primary:hover:not(:disabled) { background: var(--navy-2); }
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-gold:hover:not(:disabled) { background: #d6b978; }
.btn-ghost { background: transparent; color: var(--navy); border-color: var(--line); }
.btn-ghost:hover:not(:disabled) { background: #eaeef3; }
.site-header .btn-ghost { color: var(--white); border-color: #3a5378; }
.site-header .btn-ghost:hover { background: var(--navy-2); }
.btn-sm { padding: 5px 10px; min-height: 32px; font-size: .85rem; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

/* Cabeçalhos de página */
.page-head { margin-bottom: 22px; }
.page-head .eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; font-weight: 700; color: var(--gold-dark); margin-bottom: 6px; }
.breadcrumb { font-size: .88rem; margin-bottom: 10px; }
.breadcrumb a { color: var(--muted); }

/* Cartões e grade (UI-03) */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.card h3 { margin: 0; }
.card .desc { flex: 1; color: var(--muted); font-size: .95rem; }
.card-top { display: flex; align-items: center; gap: 12px; }
.course-icon { width: 44px; height: 44px; border-radius: 10px; background: var(--navy); display: grid; place-items: center; flex: none; }
.course-icon svg { width: 24px; height: 24px; stroke: var(--gold); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.meta { display: flex; gap: 8px; flex-wrap: wrap; font-size: .82rem; }
.badge { display: inline-flex; align-items: center; gap: 4px; border-radius: 999px; padding: 2px 10px; font-size: .78rem; font-weight: 700; background: #eaeef3; color: var(--navy); }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.err { background: var(--err-bg); color: var(--err); }
.badge.gold { background: #f6efdc; color: var(--gold-dark); }
.card.is-draft { border-style: dashed; opacity: .92; }
.upcoming { margin-top: 34px; }

/* Progresso */
.progress { height: 10px; background: #e3e8ee; border-radius: 999px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: linear-gradient(90deg, var(--navy), var(--gold)); width: 0; transition: width .4s ease; }
.progress-label { display: flex; justify-content: space-between; font-size: .85rem; color: var(--muted); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 22px; }
.stat { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stat .num { font-size: 1.7rem; font-weight: 800; color: var(--navy); }
.stat .lbl { font-size: .85rem; color: var(--muted); }

/* Visão do curso (UI-06) */
.layout-2 { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 24px; align-items: start; }
.steps { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.step { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px; display: grid; grid-template-columns: 44px 1fr auto; gap: 14px; align-items: center; }
.step-num { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; background: #e8edf4; color: var(--navy); }
.step.done .step-num { background: var(--ok); color: var(--white); }
.step.draft .step-num { background: var(--gold); color: var(--navy); }
.step h3 { margin: 0 0 2px; }
.step p { margin: 0; font-size: .9rem; color: var(--muted); }
.panel { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.panel + .panel { margin-top: 16px; }
.panel h2, .panel h3 { font-size: 1.05rem; }
.side { position: sticky; top: 86px; }

/* Laboratório (UI-07) */
.lab { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 24px; align-items: start; }
.lab-section { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; margin-bottom: 18px; }
.lab-section h2 { font-size: 1.12rem; display: flex; align-items: center; gap: 8px; }
.lab-section h2::before { content: ""; width: 4px; height: 18px; background: var(--gold); border-radius: 2px; }
.example { background: var(--bg); border-left: 4px solid var(--gold); padding: 12px 16px; border-radius: 0 8px 8px 0; white-space: pre-line; }
.nature { background: #eef3f9; color: var(--navy-2); border-radius: 8px; padding: 10px 14px; font-size: .9rem; }
.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { padding: 4px 0; }
.checklist label { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; }
.checklist input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--navy); }
.glossary { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0; }
.glossary dt { font-weight: 700; color: var(--navy); }
.glossary dd { margin: 0; }

.form { display: flex; flex-direction: column; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > label, .field > .label { font-weight: 650; color: var(--navy); }
.field .help { font-size: .85rem; color: var(--muted); }
.field input[type="text"], .field input[type="number"], .field input[type="email"], .field input[type="password"], .field select, .field textarea {
  font: inherit; color: var(--ink); background: var(--white); border: 1px solid #c4ccd6; border-radius: 8px; padding: 9px 12px; width: 100%; min-height: 42px;
}
.field textarea { resize: vertical; min-height: 96px; font-family: inherit; }
.field textarea.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; font-size: .92rem; }
.field input:focus, .field select:focus, .field textarea:focus { outline: var(--focus); outline-offset: 1px; border-color: var(--navy); }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 600; color: var(--navy); cursor: pointer; }
.check input { width: 20px; height: 20px; margin-top: 2px; accent-color: var(--navy); }
.field-preview { font-size: .85rem; color: var(--muted); }

.form-msg { margin: 0; min-height: 1.2em; font-size: .92rem; }
.alert { border-radius: 8px; padding: 12px 14px; font-size: .93rem; }
.alert ul { margin: 6px 0 0; padding-left: 20px; }
.alert.ok { background: var(--ok-bg); color: var(--ok); border: 1px solid #b9e0c8; }
.alert.err { background: var(--err-bg); color: var(--err); border: 1px solid #f0c4c4; }
.alert.warn { background: var(--warn-bg); color: var(--warn); border: 1px solid #ecd9a6; }
.alert.info { background: #eef3f9; color: var(--navy-2); border: 1px solid #c9d6ea; }

/* Status de salvamento (UI-08) */
.save-status { display: inline-flex; align-items: center; gap: 8px; font-size: .9rem; font-weight: 650; padding: 6px 12px; border-radius: 999px; background: #eaeef3; color: var(--navy); }
.save-status::before { content: ""; width: 9px; height: 9px; border-radius: 50%; background: currentColor; }
.save-status[data-state="dirty"] { background: var(--warn-bg); color: var(--warn); }
.save-status[data-state="saving"] { background: #e8eef7; color: var(--navy-2); }
.save-status[data-state="saving"]::before { animation: pulse 1s infinite; }
.save-status[data-state="saved"] { background: var(--ok-bg); color: var(--ok); }
.save-status[data-state="error"], .save-status[data-state="conflict"] { background: var(--err-bg); color: var(--err); }
@keyframes pulse { 50% { opacity: .25; } }
@media (prefers-reduced-motion: reduce) { .save-status[data-state="saving"]::before { animation: none; } .progress > span { transition: none; } }

.lab-actions { position: sticky; bottom: 0; background: rgba(243, 245, 247, .96); border-top: 1px solid var(--line); padding: 12px 0; margin-top: 4px; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; justify-content: space-between; }

/* Diagrama */
.diagram { width: 100%; overflow-x: auto; }
.diagram svg { display: block; max-width: 100%; height: auto; }
.diagram .node rect { fill: var(--white); stroke: var(--navy); stroke-width: 1.6; }
.diagram .node.last rect { fill: var(--navy); }
.diagram .node text { fill: var(--navy); font: 700 12px var(--font); }
.diagram .node.last text { fill: var(--white); }
.diagram .edge { stroke: var(--gold); stroke-width: 2; fill: none; }
.diagram .arrowhead { fill: var(--gold); }

/* Versões (UI-10) e histórico (UI-09) */
.versions { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; max-height: 420px; overflow: auto; }
.versions li { display: flex; align-items: center; justify-content: space-between; gap: 8px; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; font-size: .88rem; }
.versions li.current { border-color: var(--gold); background: #fbf7ec; }
.table-wrap { overflow-x: auto; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: .92rem; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { background: var(--navy); color: var(--white); font-weight: 650; position: sticky; top: 0; }
tbody tr:nth-child(even) { background: #fafbfc; }
.toolbar { display: flex; gap: 12px; align-items: end; flex-wrap: wrap; margin-bottom: 14px; }
.toolbar .field { min-width: 220px; }

.empty { text-align: center; padding: 40px 20px; background: var(--white); border: 1px dashed #c4ccd6; border-radius: var(--radius); color: var(--muted); }

/* Diálogos (UI-04) */
.dialog { border: none; border-radius: 14px; padding: 0; width: min(480px, calc(100vw - 32px)); box-shadow: 0 20px 60px rgba(10, 34, 64, .35); color: var(--ink); }
.dialog::backdrop { background: rgba(10, 34, 64, .55); }
.dialog-body { padding: 24px; display: flex; flex-direction: column; gap: 14px; margin: 0; }
.dialog-body h2 { margin: 0; border-bottom: 3px solid var(--gold); padding-bottom: 8px; }
.dialog-actions { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }
.profile-choice { display: flex; flex-direction: column; gap: 10px; }
.profile-choice .btn { justify-content: flex-start; padding: 14px 16px; text-align: left; }
.link-btn { background: none; border: none; color: var(--navy-2); text-decoration: underline; font: inherit; cursor: pointer; padding: 0; }

/* Toasts (UI-13) */
.toasts { position: fixed; right: 16px; bottom: 16px; display: flex; flex-direction: column; gap: 8px; z-index: 50; max-width: min(420px, calc(100vw - 32px)); }
.toast { background: var(--navy); color: var(--white); padding: 12px 16px; border-radius: 10px; box-shadow: var(--shadow); border-left: 4px solid var(--gold); font-size: .93rem; }
.toast.err { border-left-color: #f07b7b; }
.toast.ok { border-left-color: #6fd39b; }

/* Rodapé (UI-14) */
.site-footer { background: var(--navy); color: #cdd7e4; font-size: .88rem; margin-top: auto; border-top: 3px solid var(--gold); }
.footer-inner { max-width: 1180px; margin: 0 auto; padding: 18px 20px; }
.site-footer strong { color: var(--white); }
.site-footer .muted { color: #9fb0c6; margin: 0; }

.admin-course { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.admin-course .full { grid-column: 1 / -1; }

/* Responsividade (RNF-011): até 360 px */
@media (max-width: 960px) {
  .layout-2, .lab { grid-template-columns: 1fr; }
  .side { position: static; }
}
@media (max-width: 640px) {
  .header-inner { padding: 8px 14px; gap: 8px; }
  .brand-name { display: none; }
  .main-nav { order: 3; flex-basis: 100%; overflow-x: auto; flex-wrap: nowrap; }
  .main-nav a { padding: 6px 10px; white-space: nowrap; }
  .account { margin-left: auto; }
  .account .who { max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .main { padding: 18px 14px 40px; }
  .step { grid-template-columns: 40px 1fr; }
  .step > :last-child { grid-column: 1 / -1; }
  .lab-section { padding: 16px; }
  .admin-course { grid-template-columns: 1fr; }
  .glossary { grid-template-columns: 1fr; }
  .glossary dd { margin-bottom: 6px; }
  .site-header { position: static; }
}
@media print {
  .site-header, .env-banner, .lab-actions, .side, .site-footer, .toasts { display: none; }
}