/* Nace Atelier — modern wiki layout, accessible, night-bench */

:root {
  --bg: #0c1014;
  --bg-sidebar: #111820;
  --bg-article: #121a22;
  --bg-elev: #1a2430;
  --ink: #e8eef4;
  --ink-dim: #9aafc0;
  --link: #7ec8ff;
  --link-hover: #b8e0ff;
  --accent: #e8a54b;
  --accent-2: #6bcf9a;
  --line: #2a3848;
  --danger: #ff8a7a;
  --focus: #ffe08a;
  --radius: 12px;
  --tap: 52px;
  --sidebar-w: 280px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, "Cascadia Code", Menlo, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { font-size: 110%; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--focus); color: #000; padding: 0.75rem 1rem; z-index: 100;
}
.skip-link:focus { left: 0; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* hidden attribute must win over display:grid (login overlay bug) */
[hidden] { display: none !important; }

/* Login */
.login-screen {
  min-height: 100vh; display: grid; place-items: center; padding: 1.5rem;
  background: radial-gradient(800px 400px at 20% 0%, #1a2a3a, transparent), var(--bg);
  position: fixed; inset: 0; z-index: 100;
}
.login-screen[hidden] { display: none !important; position: static; }
.wiki-shell[hidden] { display: none !important; }
.login-card {
  width: min(440px, 100%);
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.75rem;
}
.login-card h1 { margin: 0.25rem 0 0.5rem; font-size: 1.85rem; }
.eyebrow {
  margin: 0; color: var(--accent); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em; font-size: 0.78rem;
}
.lead { color: var(--ink-dim); margin: 0 0 1rem; }
.error {
  color: var(--danger); background: rgba(255,100,80,.12);
  border: 1px solid rgba(255,100,80,.35); padding: 0.75rem 1rem; border-radius: 10px;
}
label { display: block; font-weight: 650; margin: 0.85rem 0 0.35rem; }
.big-input, .search-input, select.big-input, textarea.big-input {
  width: 100%; min-height: var(--tap); font-size: 1.1rem;
  padding: 0.75rem 1rem; border-radius: 10px;
  border: 2px solid var(--line); background: var(--bg); color: var(--ink);
  font-family: inherit;
}
.big-input:focus, .search-input:focus, .btn:focus-visible, a:focus-visible {
  outline: 3px solid var(--focus); outline-offset: 2px;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem;
  min-height: 48px; padding: 0.6rem 1.1rem; border-radius: 10px;
  border: 2px solid transparent; font-size: 1.05rem; font-weight: 700;
  cursor: pointer; font-family: inherit; text-decoration: none;
}
.btn-xl { width: 100%; min-height: 60px; font-size: 1.15rem; margin-top: 0.75rem; }
.btn-primary {
  background: linear-gradient(180deg, #f0b45a, #d4892e);
  color: #1a1005; border-color: #f5c97a;
}
.btn-ghost {
  background: transparent; color: var(--ink); border-color: var(--line);
}
.btn-ghost:hover { background: var(--bg-elev); }
.btn-sm { min-height: 40px; font-size: 0.95rem; padding: 0.4rem 0.75rem; }

/* Wiki chrome */
.wiki-shell { min-height: 100vh; display: flex; flex-direction: column; }
.wiki-top {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.65rem;
  padding: 0.65rem 1rem;
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 40;
}
.brand {
  font-weight: 800; font-size: 1.15rem; color: var(--ink); text-decoration: none;
  white-space: nowrap;
}
.brand:hover { color: var(--accent); }
.wiki-search {
  flex: 1 1 220px; display: flex; gap: 0.4rem; max-width: 480px;
}
.search-input { min-height: 44px; font-size: 1rem; }
.wiki-top-actions { display: flex; align-items: center; gap: 0.4rem; margin-left: auto; }
.who { color: var(--ink-dim); font-size: 0.95rem; max-width: 120px; overflow: hidden; text-overflow: ellipsis; }

.wiki-body { display: flex; flex: 1; min-height: 0; }
.wiki-sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--line);
  padding: 1rem 0.75rem 2rem;
  overflow-y: auto;
  position: sticky; top: 58px; height: calc(100vh - 58px);
}
.sidebar-label {
  margin: 1rem 0.5rem 0.4rem;
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ink-dim); font-weight: 700;
}
.sidebar-nav a, .sidebar-api a {
  display: block; padding: 0.55rem 0.75rem; border-radius: 8px;
  color: var(--ink); text-decoration: none; font-weight: 600; font-size: 0.98rem;
}
.sidebar-nav a:hover, .sidebar-api a:hover { background: var(--bg-elev); color: var(--link-hover); }
.sidebar-nav a.active { background: rgba(232,165,75,.15); color: var(--accent); }
.sidebar-nav .child { padding-left: 1.35rem; font-weight: 500; font-size: 0.92rem; color: var(--ink-dim); }
.sidebar-nav .child.active { color: var(--accent); }
.sidebar-api a {
  font-family: var(--mono); font-size: 0.78rem; color: var(--link); font-weight: 500;
}

.wiki-main {
  flex: 1; min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 240px;
  gap: 0;
  align-items: start;
}
.breadcrumbs {
  grid-column: 1 / -1;
  padding: 0.85rem 1.5rem 0;
  display: flex; flex-wrap: wrap; gap: 0.35rem; align-items: center;
  font-size: 0.95rem;
}
.breadcrumbs a { color: var(--link); text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; }
.breadcrumbs .sep { color: var(--ink-dim); user-select: none; }
.breadcrumbs .current { color: var(--ink); font-weight: 700; }

.wiki-article {
  padding: 0.5rem 1.5rem 3rem;
  max-width: 820px;
}
.wiki-article h1 {
  margin: 0.25rem 0 0.75rem;
  font-size: 1.85rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.wiki-article h2 { margin: 1.75rem 0 0.65rem; font-size: 1.3rem; color: var(--accent); }
.wiki-article h3 { margin: 1.25rem 0 0.5rem; font-size: 1.1rem; }
.wiki-article p { margin: 0.65rem 0; }
.wiki-article a { color: var(--link); }
.wiki-article ul, .wiki-article ol { padding-left: 1.35rem; }
.wiki-article li { margin: 0.35rem 0; }
.wiki-article pre, .explain-box {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  white-space: pre-wrap;
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.5;
  overflow-x: auto;
}
.wiki-article code {
  font-family: var(--mono); font-size: 0.9em;
  background: var(--bg-elev); padding: 0.1em 0.35em; border-radius: 4px;
}

.related-panel {
  position: sticky; top: 70px;
  padding: 1.25rem 1rem 2rem 0.5rem;
  border-left: 1px solid var(--line);
  max-height: calc(100vh - 70px);
  overflow-y: auto;
}
.related-title {
  margin: 0 0 0.65rem;
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--ink-dim);
}
.related-links a {
  display: block; padding: 0.5rem 0.6rem; margin-bottom: 0.25rem;
  border-radius: 8px; color: var(--link); text-decoration: none; font-size: 0.92rem;
  border: 1px solid transparent;
}
.related-links a:hover { background: var(--bg-elev); border-color: var(--line); }
.related-links .kind {
  display: block; font-size: 0.7rem; color: var(--ink-dim); text-transform: uppercase;
}

/* Cards / lists */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
  margin: 1rem 0;
}
.card {
  display: block; text-align: left; text-decoration: none; color: var(--ink);
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem; min-height: 100px; cursor: pointer; font-family: inherit;
  width: 100%;
}
.card:hover { border-color: var(--accent); }
.card strong { display: block; font-size: 1.1rem; margin-bottom: 0.35rem; }
.card .meta { color: var(--ink-dim); font-size: 0.92rem; }

.stack { display: flex; flex-direction: column; gap: 0.65rem; }
.list-row {
  display: block; width: 100%; text-align: left;
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0.9rem 1rem; color: var(--ink); text-decoration: none;
  font-family: inherit; cursor: pointer; font-size: 1.02rem;
}
.list-row:hover { border-color: var(--link); }
.badge {
  display: inline-block; padding: 0.15rem 0.5rem; border-radius: 999px;
  background: #2a3848; font-size: 0.8rem; font-weight: 700; margin-right: 0.35rem;
}
.badge.gold { background: #5a4020; color: #f5d78a; }
.badge.green { background: #1e3a2c; color: #a8f0c8; }
.badge.dim { background: #2a2a30; color: #aaa; }
.badge.learn { background: #2a3048; color: #a8c4ff; }

/* Credentials wall */
.wall {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
  margin: 1.25rem 0;
  padding: 1.25rem;
  background: linear-gradient(160deg, #1a1520, #121a22 40%, #1a2218);
  border: 2px solid #3a3020;
  border-radius: 16px;
  box-shadow: inset 0 0 40px rgba(0,0,0,.35);
}
.wall-plaque {
  text-align: center;
  padding: 1.1rem 0.75rem;
  border-radius: 12px;
  border: 2px solid var(--line);
  background: rgba(0,0,0,.35);
  min-height: 160px;
}
.wall-plaque.earned {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(232,165,75,.25);
  background: rgba(232,165,75,.08);
}
.wall-plaque .medal { font-size: 2.5rem; display: block; margin-bottom: 0.35rem; }
.wall-plaque.earned .medal { filter: none; }
.wall-plaque:not(.earned) .medal { filter: grayscale(1) opacity(0.35); }
.wall-plaque .tier-name { font-weight: 800; font-size: 1.15rem; }
.wall-plaque .tier-pct { color: var(--ink-dim); font-size: 0.9rem; margin-top: 0.35rem; }
.wall-plaque .cert-code {
  font-family: var(--mono); font-size: 0.7rem; color: var(--accent-2); margin-top: 0.5rem;
  word-break: break-all;
}

/* Video */
.video-wrap {
  position: relative; padding-bottom: 56.25%; height: 0;
  border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  margin: 1rem 0; background: #000;
}
.video-wrap iframe {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
}

.quiz-q { margin: 1rem 0; padding: 1rem; background: var(--bg-elev); border-radius: var(--radius); border: 1px solid var(--line); }
.quiz-q label { font-weight: 500; display: flex; gap: 0.5rem; align-items: flex-start; margin: 0.4rem 0; cursor: pointer; }
.quiz-q input { margin-top: 0.35rem; width: 1.2rem; height: 1.2rem; }

.assistant-bubble {
  background: linear-gradient(145deg, #1a2830, #1a2420);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.15rem 1.25rem; font-size: 1.15rem; margin-bottom: 1rem;
}

.stat-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 0.65rem;
}
.stat {
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: 10px; padding: 0.85rem;
}
.stat strong { display: block; font-size: 1.4rem; color: var(--accent); }

.table-wrap { overflow-x: auto; margin: 1rem 0; }
table.wiki-table {
  width: 100%; border-collapse: collapse; font-size: 0.98rem;
}
table.wiki-table th, table.wiki-table td {
  text-align: left; padding: 0.65rem 0.75rem; border-bottom: 1px solid var(--line);
}
table.wiki-table th { color: var(--ink-dim); font-size: 0.85rem; }

.toast {
  position: fixed; bottom: 1.25rem; left: 50%; transform: translateX(-50%);
  background: var(--accent-2); color: #062014; font-weight: 800;
  padding: 0.9rem 1.25rem; border-radius: 999px; z-index: 50; max-width: 90vw;
}

.modal { border: none; border-radius: 16px; padding: 0; background: transparent; max-width: 520px; width: calc(100% - 2rem); }
.modal::backdrop { background: rgba(0,0,0,.75); }
.modal-inner {
  background: var(--bg-elev); border: 1px solid var(--line); border-radius: 16px;
  padding: 1.25rem; color: var(--ink);
}
.modal-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; margin-top: 0.5rem; }
.modal-actions .btn-xl { margin-top: 0; }

.sidebar-toggle { display: none; }

@media (max-width: 960px) {
  .wiki-main { grid-template-columns: 1fr; }
  .related-panel {
    position: static; border-left: none; border-top: 1px solid var(--line);
    max-height: none; padding: 1.25rem 1.5rem 2rem;
  }
}
@media (max-width: 760px) {
  html { font-size: 100%; }
  .sidebar-toggle { display: inline-flex; min-height: 44px; }
  .wiki-top {
    padding: 0.55rem 0.75rem;
    gap: 0.4rem;
  }
  .wiki-top .brand span, .wiki-top .brand { font-size: 0.95rem; }
  .wiki-top-actions .btn { min-height: 40px; padding: 0.35rem 0.55rem; font-size: 0.85rem; }
  .who { display: none; }
  .wiki-sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; z-index: 50;
    transform: translateX(-105%); transition: transform .2s;
    height: 100vh; width: min(88vw, 300px);
    box-shadow: none;
  }
  .wiki-sidebar.open {
    transform: translateX(0);
    box-shadow: 8px 0 40px rgba(0,0,0,.55);
  }
  .wiki-sidebar .sidebar-api { display: none; } /* hide raw API list on phones */
  .wiki-search { order: 5; flex: 1 1 100%; max-width: none; }
  .wiki-article { padding: 0.75rem 1rem 5rem; }
  .wiki-article h1 { font-size: 1.45rem; }
  .breadcrumbs { padding: 0.65rem 1rem 0; font-size: 0.88rem; }
  .action-grid { grid-template-columns: 1fr 1fr; gap: 0.55rem; }
  .action-card { min-height: 96px; padding: 0.85rem; }
  .modal { width: calc(100% - 1rem); max-width: none; }
  .modal-actions { grid-template-columns: 1fr; }
  .btn-xl { min-height: 56px; }
  .wall { grid-template-columns: 1fr 1fr; gap: 0.65rem; padding: 0.85rem; }
  .wall-plaque { min-height: 140px; padding: 0.85rem 0.5rem; }
}

/* backdrop when mobile sidebar open */
.sidebar-backdrop {
  display: none;
  position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 45;
}
.sidebar-backdrop.show { display: block; }
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}