/* ── Reset & Base ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', Arial, sans-serif; background: #f0f2f5; color: #222; min-height: 100vh; }

/* ── Nav ─────────────────────────────────────────────────── */
nav {
  background: #1a3a5c; padding: 0 20px;
  display: flex; align-items: center; gap: 4px; flex-wrap: wrap;
  min-height: 56px; position: sticky; top: 0; z-index: 200;
  box-shadow: 0 2px 8px rgba(0,0,0,.3);
}
nav .brand { color: #fff; font-weight: 700; font-size: 1.05rem; margin-right: auto; white-space: nowrap; }
nav .block-badge {
  background: #f59e0b; color: #1a1a1a; font-weight: 700; font-size: .75rem;
  padding: 2px 8px; border-radius: 20px; margin-right: 4px;
}
nav a { color: #aec6e8; text-decoration: none; padding: 6px 12px; border-radius: 6px;
        font-size: .85rem; transition: background .2s; white-space: nowrap; }
nav a:hover, nav a.active { background: #2a5280; color: #fff; }
nav a.logout { color: #f88; }
.nav-hamburger { display: none; background: none; border: none; color: #fff; font-size: 1.5rem; cursor: pointer; padding: 4px 8px; }
@media (max-width: 640px) {
  nav { padding: 8px 12px; }
  .nav-links { display: none; flex-direction: column; width: 100%; gap: 2px; padding: 6px 0; }
  .nav-links.open { display: flex; }
  .nav-hamburger { display: block; }
  nav .brand { flex: 1; }
}

/* ── Container ───────────────────────────────────────────── */
.container { max-width: 1100px; margin: 24px auto; padding: 0 12px; }

/* ── Cards ───────────────────────────────────────────────── */
.card { background: #fff; border-radius: 10px; box-shadow: 0 2px 12px rgba(0,0,0,.08); padding: 24px 28px; margin-bottom: 20px; }
.card h2 { font-size: 1.1rem; color: #1a3a5c; margin-bottom: 18px; border-bottom: 2px solid #e3eaf3; padding-bottom: 10px; display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
@media (max-width: 480px) { .card { padding: 16px; } }

/* ── Stats Grid ──────────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat-box { background: #fff; border-radius: 10px; padding: 18px 16px; text-align: center; box-shadow: 0 2px 8px rgba(0,0,0,.06); border-top: 4px solid #1a3a5c; }
.stat-box .s-num { font-size: 2rem; font-weight: 700; color: #1a3a5c; }
.stat-box .s-label { font-size: .75rem; color: #777; text-transform: uppercase; letter-spacing: .4px; margin-top: 4px; }
.stat-box.green { border-color: #2e7d32; } .stat-box.green .s-num { color: #2e7d32; }
.stat-box.orange { border-color: #e65100; } .stat-box.orange .s-num { color: #e65100; }
.stat-box.blue { border-color: #1565c0; } .stat-box.blue .s-num { color: #1565c0; }
.stat-box.red { border-color: #c62828; } .stat-box.red .s-num { color: #c62828; }

/* ── Dashboard Grid ──────────────────────────────────────── */
.dash-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.dash-tile { background: #fff; border-radius: 10px; padding: 28px 16px; text-align: center; text-decoration: none; color: #1a3a5c; box-shadow: 0 2px 10px rgba(0,0,0,.08); transition: transform .15s, box-shadow .15s; border-top: 4px solid #1a3a5c; }
.dash-tile:hover { transform: translateY(-4px); box-shadow: 0 8px 20px rgba(0,0,0,.13); }
.dash-tile .icon { font-size: 2.3rem; margin-bottom: 10px; display: block; }
.dash-tile .label { font-weight: 600; font-size: .95rem; }
.dash-tile.green { border-color: #2e7d32; } .dash-tile.orange { border-color: #e65100; }
.dash-tile.blue { border-color: #1565c0; } .dash-tile.purple { border-color: #6a1b9a; }

/* ── Forms ───────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group label { font-size: .78rem; font-weight: 600; color: #555; text-transform: uppercase; letter-spacing: .4px; }
.form-group input, .form-group select, .form-group textarea {
  border: 1.5px solid #d0d7e2; border-radius: 7px; padding: 9px 12px;
  font-size: .93rem; font-family: inherit; background: #fafbfc;
  transition: border .2s, box-shadow .2s; width: 100%;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: #1a3a5c; background: #fff; box-shadow: 0 0 0 3px rgba(26,58,92,.1); }
.form-group input[readonly] { background: #eef2f7; color: #444; }
.form-full { grid-column: 1 / -1; }
@media (max-width: 480px) { .form-grid { grid-template-columns: 1fr; } }

/* ── Buttons ─────────────────────────────────────────────── */
.btn { display: inline-flex; align-items: center; gap: 5px; padding: 9px 20px; border-radius: 7px; border: none; font-size: .88rem; font-weight: 600; cursor: pointer; text-decoration: none; transition: background .2s, opacity .2s, transform .1s; white-space: nowrap; }
.btn:active { transform: scale(.97); }
.btn-primary { background: #1a3a5c; color: #fff; } .btn-primary:hover { background: #14304d; }
.btn-danger  { background: #c62828; color: #fff; } .btn-danger:hover  { background: #ad1f1f; }
.btn-success { background: #2e7d32; color: #fff; } .btn-success:hover { background: #256027; }
.btn-warning { background: #e65100; color: #fff; } .btn-warning:hover { background: #bf360c; }
.btn-secondary { background: #e0e5ee; color: #333; } .btn-secondary:hover { background: #cdd4e2; }
.btn-sm { padding: 5px 12px; font-size: .78rem; }
.btn-xs { padding: 3px 9px; font-size: .72rem; }

/* ── Table ───────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: .85rem; min-width: 500px; }
thead th { background: #1a3a5c; color: #fff; padding: 10px 12px; text-align: left; white-space: nowrap; font-size: .77rem; text-transform: uppercase; letter-spacing: .4px; }
tbody tr:nth-child(even) { background: #f5f7fb; }
tbody tr:hover { background: #eef2f7; }
tbody td { padding: 9px 12px; border-bottom: 1px solid #e6eaf1; vertical-align: middle; }

/* ── Color-coded row states ──────────────────────────────── */
tr.row-occupied   { background: #e3f0ff !important; }
tr.row-occupied:hover { background: #cce0ff !important; }
tr.row-prev-occ   { background: #fff0f0 !important; }
tr.row-prev-occ:hover { background: #ffe0e0 !important; }
tr.row-vacant     { background: #f9f9f9 !important; }
tr.row-vacant:hover { background: #f0f0f0 !important; }

/* ── Badges ──────────────────────────────────────────────── */
.badge { display: inline-block; padding: 3px 9px; border-radius: 20px; font-size: .73rem; font-weight: 600; }
.badge-occupied    { background: #1565c0; color: #fff; }
.badge-prev-occ    { background: #c62828; color: #fff; }
.badge-vacant      { background: #999; color: #fff; }
.badge-vacant      { background: #e0e5ee; color: #555; }
.badge-active      { background: #e8f5e9; color: #2e7d32; }
.badge-vacated     { background: #fce4ec; color: #c62828; }
.badge-warning     { background: #fff3cd; color: #856404; }

/* ── Alert ───────────────────────────────────────────────── */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: .9rem; display: flex; align-items: flex-start; gap: 8px; }
.alert-success { background: #e8f5e9; color: #1b5e20; border-left: 4px solid #2e7d32; }
.alert-danger  { background: #fce4ec; color: #7f0000; border-left: 4px solid #c62828; }
.alert-warning { background: #fff8e1; color: #5d4037; border-left: 4px solid #f59e0b; }
.alert-info    { background: #e3f2fd; color: #0d47a1; border-left: 4px solid #1565c0; }

/* ── In-app confirmation modal ───────────────────────────── */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 9999; align-items: center; justify-content: center; padding: 16px; }
.modal-overlay.open { display: flex; animation: fadeIn .15s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-box { background: #fff; border-radius: 12px; padding: 28px; max-width: 460px; width: 100%; box-shadow: 0 16px 40px rgba(0,0,0,.2); animation: slideUp .2s ease; }
@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-icon { font-size: 2.5rem; text-align: center; margin-bottom: 12px; }
.modal-box h3 { font-size: 1.1rem; color: #1a3a5c; margin-bottom: 10px; text-align: center; }
.modal-box p { color: #555; font-size: .9rem; text-align: center; margin-bottom: 8px; }
.modal-detail { background: #f0f4fa; border-radius: 8px; padding: 12px 16px; margin: 12px 0; font-size: .87rem; }
.modal-detail .md-row { display: flex; gap: 8px; padding: 3px 0; }
.modal-detail .md-label { color: #777; min-width: 110px; font-size: .8rem; }
.modal-detail .md-value { font-weight: 600; color: #1a3a5c; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; flex-wrap: wrap; }
.modal-actions .btn { flex: 1; justify-content: center; }

/* ── Photo ───────────────────────────────────────────────── */
.student-photo { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; border: 2px solid #d0d7e2; }
.photo-preview { width: 90px; height: 90px; border-radius: 8px; object-fit: cover; border: 2px solid #d0d7e2; margin-top: 6px; display: block; }

/* ── Info Row (allocation/vacate display) ────────────────── */
.info-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px,1fr)); gap: 10px; }
.info-box { background: #f0f4fa; border-radius: 8px; padding: 10px 14px; }
.info-box .ib-label { font-size: .72rem; color: #777; text-transform: uppercase; letter-spacing: .4px; }
.info-box .ib-value { font-size: .97rem; font-weight: 600; color: #1a3a5c; margin-top: 2px; }
.info-box.highlight { background: #e3f0ff; border: 1px solid #90c0ff; }
.info-box.warn { background: #fff3cd; border: 1px solid #f59e0b; }

/* ── Occupant pills ──────────────────────────────────────── */
.occupant-list { display: flex; flex-direction: column; gap: 6px; margin-top: 4px; }
.occupant-pill { background: #e3f0ff; border-radius: 6px; padding: 6px 10px; font-size: .82rem; display: flex; align-items: center; gap: 8px; }
.occupant-pill .op-name { font-weight: 600; color: #1a3a5c; }
.occupant-pill .op-roll { color: #555; font-size: .78rem; }

/* ── Search toggle ───────────────────────────────────────── */
.search-toggle { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.stog-btn { padding: 7px 18px; border-radius: 6px; border: 2px solid #d0d7e2; background: #fff; cursor: pointer; font-size: .85rem; font-weight: 600; color: #555; transition: all .2s; }
.stog-btn.active { border-color: #1a3a5c; background: #1a3a5c; color: #fff; }

/* ── Login ───────────────────────────────────────────────── */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #1a3a5c, #2a6099); padding: 16px; }
.login-card { background: #fff; border-radius: 14px; padding: 40px 32px; width: 100%; max-width: 380px; box-shadow: 0 8px 32px rgba(0,0,0,.2); }
.login-card h1 { text-align: center; color: #1a3a5c; margin-bottom: 6px; font-size: 1.5rem; }
.login-card .subtitle { text-align: center; color: #888; font-size: .85rem; margin-bottom: 28px; }
.login-card .form-group { margin-bottom: 16px; }
.login-card .btn { width: 100%; margin-top: 8px; padding: 12px; font-size: 1rem; justify-content: center; }
.hint { text-align: center; font-size: .75rem; color: #aaa; margin-top: 18px; line-height: 1.8; }

/* ── Tabs ────────────────────────────────────────────────── */
.tab-bar { display: flex; gap: 4px; flex-wrap: wrap; }
.tab-btn { padding: 9px 20px; border-radius: 8px 8px 0 0; border: none; background: #d0d7e2; color: #555; cursor: pointer; font-size: .87rem; font-weight: 600; font-family: inherit; transition: background .2s; }
.tab-btn.active { background: #1a3a5c; color: #fff; }
.tab-content { display: none; } .tab-content.active { display: block; }

/* ── Filters ─────────────────────────────────────────────── */
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; margin-bottom: 16px; }
.filters .form-group { min-width: 140px; flex: 1; }

/* ── Legend ──────────────────────────────────────────────── */
.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: .8rem; margin-bottom: 12px; }
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-dot { width: 14px; height: 14px; border-radius: 3px; }
.legend-dot.blue { background: #1565c0; } .legend-dot.red { background: #c62828; } .legend-dot.gray { background: #9e9e9e; }

/* ── Misc ────────────────────────────────────────────────── */
.mt-12 { margin-top: 12px; } .mt-20 { margin-top: 20px; }
.text-muted { color: #888; font-size: .82rem; }
.flex-gap { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size:.73rem; background: #e3eaf3; color: #1a3a5c; font-weight: 600; }
.section-title { font-size: .8rem; font-weight: 700; color: #777; text-transform: uppercase; letter-spacing: .5px; margin: 16px 0 8px; }
.divider { border: none; border-top: 1px solid #e3eaf3; margin: 20px 0; }
/* ── Added for base.html migration ─────────────────────────── */
/* alert-error is an alias for alert-danger (used in new templates) */
.alert-error { background:#fce4ec; color:#7f0000; border-left:4px solid #c62828; }
/* tag-blue for admin_users.html manager badge */
.tag-blue { background:#e3f0ff; color:#1565c0; }
/* btn-xs already exists? check: */