/* ============================================================
   METS Training (LMS) — shared styles
   Built entirely on mets-theme.css tokens so light/dark/sakura
   all work. Load AFTER mets-theme.css.
   ============================================================ */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--epson-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- top navigation ---------- */
.lms-nav {
  position: sticky; top: 0; z-index: 100;
  background: linear-gradient(135deg, #003399 0%, #00205C 100%);
  color: #fff;
  display: flex; align-items: center; gap: 22px;
  padding: 0 22px; height: 56px;
  box-shadow: 0 2px 10px rgba(0,51,153,0.25);
}
.lms-brand { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 16px; white-space: nowrap; }
.lms-brand .logo {
  width: 30px; height: 30px; border-radius: 7px; background: #fff; color: #003399;
  display: grid; place-items: center; font-weight: 900; font-family: Arial; font-size: 17px;
}
.lms-brand .kanji { font-weight: 400; opacity: .55; font-size: 14px; margin-left: -4px; }
.lms-links { display: flex; align-items: center; gap: 4px; flex: 1; }
.lms-links a {
  color: rgba(255,255,255,.86); text-decoration: none; font-size: 13.5px; font-weight: 600;
  padding: 7px 13px; border-radius: 7px; transition: background .15s, color .15s; white-space: nowrap;
}
.lms-links a:hover { background: rgba(255,255,255,.13); color: #fff; }
.lms-links a.active { background: rgba(255,255,255,.18); color: #fff; }
.lms-nav-right { display: flex; align-items: center; gap: 12px; }
.lms-user { font-size: 12.5px; opacity: .9; display: flex; align-items: center; gap: 7px; }
.lms-user .dot { width: 7px; height: 7px; border-radius: 50%; background: #4ade80; }
.lms-nav button.signout {
  background: rgba(255,255,255,.12); border: none; color: #fff; cursor: pointer;
  padding: 6px 12px; border-radius: 6px; font: inherit; font-size: 12px; font-weight: 600;
}
.lms-nav button.signout:hover { background: rgba(255,255,255,.22); }
.lms-burger { display: none; background: none; border: none; color: #fff; font-size: 22px; cursor: pointer; }

@media (max-width: 800px) {
  .lms-links { position: absolute; top: 56px; left: 0; right: 0; flex-direction: column;
    background: #00205C; padding: 8px; gap: 2px; display: none; }
  .lms-links.open { display: flex; }
  .lms-links a { width: 100%; }
  .lms-burger { display: block; }
  .lms-user { display: none; }
}

/* ---------- layout ---------- */
.lms-wrap { max-width: 1180px; margin: 0 auto; padding: 28px 22px 80px; }
.lms-page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.lms-page-head h1 { margin: 0; font-size: 26px; font-weight: 800; letter-spacing: -.4px; }
.lms-page-head p { margin: 4px 0 0; color: var(--text-muted); font-size: 14px; }

.lms-tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-bottom: 24px; flex-wrap: wrap; }
.lms-tab {
  padding: 10px 16px; cursor: pointer; font-weight: 700; font-size: 14px; color: var(--text-muted);
  border: none; background: none; border-bottom: 3px solid transparent; margin-bottom: -2px;
}
.lms-tab.active { color: var(--epson-blue); border-bottom-color: var(--epson-blue); }

/* ---------- cards / course grid ---------- */
.course-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 20px; }
.course-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .15s, box-shadow .15s;
  display: flex; flex-direction: column; cursor: pointer;
}
.course-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.course-cover {
  height: 140px; background: linear-gradient(135deg, #003399, #0066cc); position: relative;
  display: grid; place-items: center; color: #fff; font-size: 44px; overflow: hidden;
}
.course-cover img { width: 100%; height: 100%; object-fit: cover; }
.course-card .body { padding: 15px 16px 18px; flex: 1; display: flex; flex-direction: column; gap: 8px; }
.course-card h3 { margin: 0; font-size: 16px; font-weight: 750; line-height: 1.3; }
.course-card .summary { font-size: 13px; color: var(--text-muted); flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.course-meta { display: flex; align-items: center; gap: 10px; font-size: 12px; color: var(--text-light); flex-wrap: wrap; }

.badge { display: inline-flex; align-items: center; gap: 4px; font-size: 11px; font-weight: 700;
  padding: 3px 9px; border-radius: 999px; text-transform: capitalize; }
.badge.beginner { background: #e6f4ec; color: #00875a; }
.badge.intermediate { background: #fff3e0; color: #d97706; }
.badge.advanced { background: #fde8e8; color: #d12b2b; }
.badge.gray { background: var(--border); color: var(--text-muted); }
.badge.blue { background: var(--epson-blue-light); color: #fff; }
html[data-theme="dark"] .badge.beginner,
html[data-theme="dark"] .badge.intermediate,
html[data-theme="dark"] .badge.advanced { filter: brightness(1.1); }

/* progress bar */
.progress { height: 7px; border-radius: 999px; background: var(--border); overflow: hidden; }
.progress > i { display: block; height: 100%; background: linear-gradient(90deg, #0066cc, #003399); border-radius: 999px; }
.progress.done > i { background: linear-gradient(90deg, #00a86b, #00875a); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-size: 14px; font-weight: 700; cursor: pointer;
  padding: 10px 18px; border-radius: 9px; border: 1px solid transparent; transition: all .15s;
  text-decoration: none;
}
.btn.primary { background: var(--epson-blue); color: #fff; }
.btn.primary:hover { background: var(--epson-blue-dark); text-decoration: none; }
.btn.ghost { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn.ghost:hover { border-color: var(--epson-blue); color: var(--epson-blue); text-decoration: none; }
.btn.success { background: var(--success); color: #fff; }
.btn.danger { background: var(--danger); color: #fff; }
.btn.sm { padding: 6px 12px; font-size: 12.5px; border-radius: 7px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- generic surfaces ---------- */
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm); padding: 22px; }
.empty { text-align: center; color: var(--text-muted); padding: 60px 20px; }
.empty .ico { font-size: 46px; margin-bottom: 12px; opacity: .6; }

/* ---------- course player ---------- */
.player-layout { display: grid; grid-template-columns: 320px 1fr; gap: 24px; align-items: start; }
@media (max-width: 920px) { .player-layout { grid-template-columns: 1fr; } }
.outline { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm); position: sticky; top: 76px; }
.outline .mod-title { padding: 12px 16px; font-weight: 800; font-size: 13px; background: var(--bg);
  border-bottom: 1px solid var(--border); text-transform: uppercase; letter-spacing: .4px; color: var(--text-muted); }
.lesson-row { display: flex; align-items: center; gap: 11px; padding: 11px 16px; cursor: pointer;
  border-bottom: 1px solid var(--border); font-size: 13.5px; transition: background .12s; }
.lesson-row:hover { background: var(--bg); }
.lesson-row.active { background: var(--epson-blue-light); color: #fff; }
.lesson-row.active .lesson-type { color: rgba(255,255,255,.8); }
.lesson-row .tick { width: 20px; height: 20px; border-radius: 50%; border: 2px solid var(--border-strong);
  display: grid; place-items: center; font-size: 11px; flex-shrink: 0; }
.lesson-row .tick.done { background: var(--success); border-color: var(--success); color: #fff; }
.lesson-row .lesson-main { flex: 1; min-width: 0; }
.lesson-row .lesson-title { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lesson-row .lesson-type { font-size: 11px; color: var(--text-light); text-transform: capitalize; }
.lesson-ico { width: 22px; text-align: center; flex-shrink: 0; }

.stage { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm); overflow: hidden; min-height: 400px; }
.stage .media { background: #000; }
.stage video, .stage iframe { width: 100%; display: block; border: 0; }
.stage .media iframe { height: 70vh; }
.stage .lesson-body { padding: 28px 32px; }
.stage .lesson-body h2 { margin-top: 0; }
.stage-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 16px 24px; border-top: 1px solid var(--border); flex-wrap: wrap; }

/* ---------- exam ---------- */
.exam-shell { max-width: 760px; margin: 0 auto; }
.exam-timer { font-weight: 800; font-size: 15px; padding: 8px 14px; border-radius: 8px;
  background: var(--epson-blue-light); color: #fff; }
.exam-timer.warn { background: var(--warning); }
.exam-timer.danger { background: var(--danger); animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: .6; } }
.q-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 22px 24px; margin-bottom: 16px; box-shadow: var(--shadow-sm); }
.q-card .q-num { font-size: 12px; font-weight: 800; color: var(--epson-blue); text-transform: uppercase; letter-spacing: .5px; }
.q-card .q-prompt { font-size: 16px; font-weight: 650; margin: 6px 0 16px; }
.opt { display: flex; align-items: center; gap: 12px; padding: 12px 15px; border: 1.5px solid var(--border);
  border-radius: 10px; margin-bottom: 9px; cursor: pointer; transition: all .12s; }
.opt:hover { border-color: var(--epson-blue-light); background: var(--bg); }
.opt.sel { border-color: var(--epson-blue); background: var(--epson-blue-light); color: #fff; }
.opt input { accent-color: #fff; width: 17px; height: 17px; }
.opt.correct { border-color: var(--success); background: #e6f4ec; color: #0a5; }
.opt.wrong { border-color: var(--danger); background: #fde8e8; color: #a00; }
.short-input { width: 100%; padding: 12px 14px; border: 1.5px solid var(--border); border-radius: 10px;
  font: inherit; font-size: 15px; background: var(--surface); color: var(--text); }

/* result */
.result-hero { text-align: center; padding: 40px 20px; }
.result-hero .ring { width: 130px; height: 130px; margin: 0 auto 18px; border-radius: 50%;
  display: grid; place-items: center; font-size: 34px; font-weight: 900; color: #fff; }
.result-hero .ring.pass { background: linear-gradient(135deg, #00a86b, #00875a); }
.result-hero .ring.fail { background: linear-gradient(135deg, #e35d5d, #d12b2b); }

/* ---------- forms / tables (admin) ---------- */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12.5px; font-weight: 700; margin-bottom: 5px; color: var(--text-muted); }
.field input, .field select, .field textarea {
  width: 100%; padding: 9px 12px; border: 1.5px solid var(--border); border-radius: 8px;
  font: inherit; font-size: 14px; background: var(--surface); color: var(--text);
}
.field textarea { min-height: 80px; resize: vertical; }
.field .row { display: flex; gap: 12px; }
.field .row > * { flex: 1; }

table.lms-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.lms-table th { text-align: left; padding: 10px 12px; border-bottom: 2px solid var(--border);
  font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--text-muted); }
.lms-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.lms-table tr:hover td { background: var(--bg); }

/* toast */
#lms-toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--surface); padding: 12px 20px; border-radius: 10px;
  font-size: 14px; font-weight: 600; box-shadow: var(--shadow-lg); z-index: 9999;
  opacity: 0; transition: opacity .2s, transform .2s; pointer-events: none; }
#lms-toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }
#lms-toast.err { background: var(--danger); color: #fff; }
#lms-toast.ok { background: var(--success); color: #fff; }

.spinner { width: 34px; height: 34px; border: 3px solid var(--border); border-top-color: var(--epson-blue);
  border-radius: 50%; animation: spin 0.7s linear infinite; margin: 50px auto; }
@keyframes spin { to { transform: rotate(360deg); } }

.modal-bg { position: fixed; inset: 0; background: rgba(10,15,30,.5); display: none; z-index: 500;
  align-items: flex-start; justify-content: center; padding: 40px 16px; overflow-y: auto; }
.modal-bg.open { display: flex; }
.modal { background: var(--surface); border-radius: var(--radius-lg); width: 100%; max-width: 620px;
  box-shadow: var(--shadow-lg); }
.modal header { padding: 18px 22px; border-bottom: 1px solid var(--border); display: flex;
  align-items: center; justify-content: space-between; }
.modal header h3 { margin: 0; font-size: 17px; }
.modal .modal-body { padding: 22px; }
.modal footer { padding: 16px 22px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }
.x-close { background: none; border: none; font-size: 22px; cursor: pointer; color: var(--text-muted); line-height: 1; }