/* Shared styles for the login/lobby and admin pages (the editor keeps its own inline styles) */
:root {
  --bg: #0d1117; --surface: #161b22; --surface2: #1c2430;
  --border: #30363d; --accent: #58a6ff; --accent2: #3fb950;
  --warn: #d29922; --danger: #f85149; --text: #e6edf3; --muted: #8b949e;
  --font-mono: 'IBM Plex Mono', monospace; --font-sans: 'IBM Plex Sans', sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: var(--font-sans); min-height: 100vh; }
[hidden] { display: none !important; }

header {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 0 24px; display: flex; align-items: center; justify-content: space-between;
  height: 56px; position: sticky; top: 0; z-index: 100; gap: 12px;
}
.logo { font-family: var(--font-mono); font-size: 15px; font-weight: 600; color: var(--accent); letter-spacing: 0.05em; display: flex; align-items: center; gap: 8px; }
.logo span { color: var(--muted); font-weight: 400; }
.header-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.user-chip { font-family: var(--font-mono); font-size: 11px; color: var(--muted); background: var(--surface2); border: 1px solid var(--border); padding: 4px 10px; border-radius: 20px; }

main { max-width: 900px; margin: 0 auto; padding: 32px 16px; }
h2 { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.sub { font-size: 13px; color: var(--muted); margin-bottom: 20px; }
.section-label { font-family: var(--font-mono); font-size: 10px; font-weight: 600; letter-spacing: 0.12em; color: var(--muted); text-transform: uppercase; margin-bottom: 10px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 20px; }
.center-card { max-width: 400px; margin: 10vh auto 0; padding: 36px 32px; box-shadow: 0 8px 40px rgba(0,0,0,0.5); }
.card-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
.card-logo-text { font-family: var(--font-mono); font-size: 16px; font-weight: 600; color: var(--accent); }
.card-logo-sub { font-size: 11px; color: var(--muted); margin-top: 2px; }

.field { margin-bottom: 14px; }
.field label { display: block; font-family: var(--font-mono); font-size: 10px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
input[type=text], input[type=email], input[type=password], select {
  width: 100%; background: var(--surface2); border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); font-family: var(--font-sans); font-size: 14px; padding: 9px 12px; outline: none; transition: border-color 0.15s;
}
input:focus, select:focus { border-color: var(--accent); }

.btn { font-family: var(--font-mono); font-size: 12px; font-weight: 600; padding: 8px 14px; border-radius: 6px; border: none; cursor: pointer; transition: opacity 0.15s, transform 0.1s; display: inline-flex; align-items: center; justify-content: center; gap: 6px; white-space: nowrap; }
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--accent); color: #0d1117; }
.btn-success { background: var(--accent2); color: #0d1117; }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid rgba(248,81,73,0.5); }
.btn-danger:hover { background: rgba(248,81,73,0.1); }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--text); border-color: var(--muted); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-sm { padding: 5px 10px; font-size: 11px; }
.btn-block { width: 100%; padding: 11px; font-size: 13px; }
.link-btn { background: none; border: none; color: var(--accent); font-size: 12px; cursor: pointer; padding: 0; font-family: var(--font-sans); }

.msg { border-radius: 6px; padding: 10px 14px; font-size: 13px; margin-bottom: 14px; }
.msg.error { background: rgba(248,81,73,0.1); border: 1px solid rgba(248,81,73,0.35); color: var(--danger); }
.msg.info  { background: rgba(88,166,255,0.08); border: 1px solid rgba(88,166,255,0.3); color: var(--accent); }

/* Lobby suite cards */
.suite-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.suite-card { display: flex; flex-direction: column; gap: 10px; border-width: 2px; }
.suite-card.free  { border-color: rgba(63,185,80,0.5); }
.suite-card.held  { border-color: rgba(248,81,73,0.45); }
.suite-card.mine  { border-color: var(--accent); }
.suite-card.stale { border-color: rgba(210,153,34,0.5); }
.suite-name { font-family: var(--font-mono); font-size: 16px; font-weight: 600; }
.status-pill { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-mono); font-size: 11px; font-weight: 600; }
.status-pill::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.free  .status-pill { color: var(--accent2); }
.held  .status-pill { color: var(--danger); }
.mine  .status-pill { color: var(--accent); }
.stale .status-pill { color: var(--warn); }
.suite-detail { font-size: 12px; color: var(--muted); line-height: 1.5; min-height: 36px; }
.suite-actions { display: flex; gap: 8px; margin-top: auto; }
.suite-actions .btn-primary { flex: 1; }

/* Tables (admin) */
table.list { width: 100%; border-collapse: collapse; font-size: 13px; }
table.list th { text-align: left; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); font-weight: 600; padding: 8px; border-bottom: 1px solid var(--border); }
table.list td { padding: 10px 8px; border-bottom: 1px solid var(--border); vertical-align: middle; }
table.list tr:last-child td { border-bottom: none; }
.row-actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.badge { font-family: var(--font-mono); font-size: 10px; font-weight: 600; padding: 2px 8px; border-radius: 10px; }
.badge-admin    { background: rgba(88,166,255,0.15); color: var(--accent); }
.badge-faculty  { background: rgba(63,185,80,0.12); color: var(--accent2); }
.badge-disabled { background: rgba(248,81,73,0.12); color: var(--danger); }
.table-wrap { overflow-x: auto; }
.form-row { display: grid; grid-template-columns: 1.2fr 1.5fr 1.2fr 0.8fr auto; gap: 8px; align-items: end; }
@media (max-width: 760px) { .form-row { grid-template-columns: 1fr; } }

.toast { position: fixed; bottom: 24px; right: 24px; background: var(--surface); border: 1px solid var(--accent2); color: var(--accent2); font-family: var(--font-mono); font-size: 12px; padding: 10px 16px; border-radius: 6px; opacity: 0; transform: translateY(8px); transition: opacity 0.2s, transform 0.2s; z-index: 999; pointer-events: none; max-width: calc(100vw - 48px); }
.toast.error { border-color: var(--danger); color: var(--danger); }
.toast.show { opacity: 1; transform: translateY(0); }

.footer-note { margin-top: 24px; font-family: var(--font-mono); font-size: 10px; color: #3d4450; text-align: center; }