/* ═══════════════════════════════════════════
   DESIGN TOKENS
═══════════════════════════════════════════ */
:root {
    --blue:         #1a56db;
    --blue-dark:    #1341b0;
    --blue-deep:    #0d2d6e;
    --blue-light:   #eff4ff;
    --blue-mid:     #dbeafe;
    --blue-border:  #bfdbfe;
    --red:          #dc2626;
    --red-light:    #fef2f2;
    --green:        #16a34a;
    --green-light:  #f0fdf4;
    --amber:        #d97706;
    --amber-light:  #fffbeb;
    --purple:       #7c3aed;
    --purple-light: #f5f3ff;
    --grey-50:      #f8fafc;
    --grey-100:     #f1f5f9;
    --grey-200:     #e2e8f0;
    --grey-400:     #94a3b8;
    --grey-600:     #475569;
    --grey-800:     #1e293b;
    --text:         #0f172a;
    --radius:       10px;
    --radius-sm:    6px;
    --shadow:       0 1px 3px rgba(0,0,0,.08), 0 8px 24px rgba(26,86,219,.06);
    --shadow-md:    0 4px 20px rgba(26,86,219,.12);
}

/* ═══════════════════════════════════════════
   RESET
═══════════════════════════════════════════ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ═══════════════════════════════════════════
   BASE
═══════════════════════════════════════════ */
body {
    font-family: 'DM Sans', sans-serif;
    background: #f0f4ff;
    background-image: radial-gradient(ellipse at 0% 0%, rgba(26,86,219,.07) 0%, transparent 55%);
    min-height: 100vh;
    color: var(--text);
}

/* ═══════════════════════════════════════════
   NAV
═══════════════════════════════════════════ */
.top-nav {
    background: var(--blue-deep);
    background-image: linear-gradient(135deg, var(--blue-deep), #1a3a7a);
    height: 62px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    position: sticky;
    top: 0;
    z-index: 200;
    box-shadow: 0 2px 20px rgba(13,45,110,.25);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 11px;
    text-decoration: none;
}

.nav-logo {
    width: 38px;
    height: 38px;
    background: var(--blue);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Cormorant Garamond', serif;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
}

.nav-name {
    font-family: 'Cormorant Garamond', serif;
    font-size: 19px;
    font-weight: 700;
    color: #fff;
    line-height: 1.1;
}

.nav-sub {
    font-size: 10px;
    color: rgba(255,255,255,.5);
    letter-spacing: 1.2px;
    text-transform: uppercase;
}

.btn-nav {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 18px;
    border-radius: 50px;
    background: rgba(255,255,255,.1);
    border: 1.5px solid rgba(255,255,255,.2);
    color: rgba(255,255,255,.9);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all .2s;
    font-family: 'DM Sans', sans-serif;
}

.btn-nav:hover {
    background: rgba(255,255,255,.2);
    color: #fff;
}

/* ═══════════════════════════════════════════
   PAGE LAYOUT
═══════════════════════════════════════════ */
.page-wrap {
    padding: 32px 40px 60px;
    max-width: 1600px;
    margin: 0 auto;
}

/* ═══════════════════════════════════════════
   STATS ROW
═══════════════════════════════════════════ */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-bottom: 28px;
}

.stat-card {
    background: #fff;
    border: 1.5px solid var(--grey-200);
    border-radius: var(--radius);
    padding: 18px 22px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    transition: transform .18s, box-shadow .18s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.stat-icon.blue   { background: var(--blue-light);   color: var(--blue);   }
.stat-icon.green  { background: var(--green-light);  color: var(--green);  }
.stat-icon.amber  { background: var(--amber-light);  color: var(--amber);  }
.stat-icon.purple { background: var(--purple-light); color: var(--purple); }

.stat-val {
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
    line-height: 1;
}

.stat-lbl {
    font-size: 12.5px;
    color: var(--grey-400);
    margin-top: 3px;
    font-weight: 500;
}

/* ═══════════════════════════════════════════
   TABLE CARD
═══════════════════════════════════════════ */
.table-card {
    background: #fff;
    border: 1.5px solid var(--grey-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.table-card-header {
    padding: 20px 28px;
    border-bottom: 1.5px solid var(--grey-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 14px;
    background: linear-gradient(to right, var(--blue-light), #fff);
}

.card-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--blue-deep);
}

.card-title span {
    font-size: 13px;
    font-family: 'DM Sans', sans-serif;
    font-weight: 500;
    color: var(--grey-400);
    margin-left: 8px;
}

/* ═══════════════════════════════════════════
   TOOLBAR
═══════════════════════════════════════════ */
.toolbar {
    padding: 16px 28px;
    border-bottom: 1.5px solid var(--grey-100);
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    background: #fafbff;
}

.search-wrap {
    position: relative;
    flex: 1;
    min-width: 220px;
    max-width: 360px;
}

.search-wrap .s-icon {
    position: absolute;
    left: 11px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--grey-400);
    font-size: 15px;
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 9px 12px 9px 34px;
    border: 1.5px solid var(--grey-200);
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    outline: none;
    background: #fff;
    transition: border-color .2s, box-shadow .2s;
}

.search-input:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(26,86,219,.1);
}

.filter-select {
    padding: 9px 12px;
    border: 1.5px solid var(--grey-200);
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-family: 'DM Sans', sans-serif;
    color: var(--grey-600);
    background: #fff;
    outline: none;
    cursor: pointer;
    transition: border-color .2s;
}

.filter-select:focus { border-color: var(--blue); }

.toolbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.page-size-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--grey-600);
    font-weight: 500;
}

.page-size-wrap select {
    padding: 7px 10px;
    border: 1.5px solid var(--grey-200);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: 'DM Sans', sans-serif;
    color: var(--text);
    background: #fff;
    outline: none;
    cursor: pointer;
    transition: border-color .2s;
}

.page-size-wrap select:focus { border-color: var(--blue); }

.btn-export {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    border: 1.5px solid var(--blue-border);
    background: var(--blue-light);
    color: var(--blue);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all .18s;
    font-family: 'DM Sans', sans-serif;
}

.btn-export:hover {
    background: var(--blue-mid);
    border-color: var(--blue);
}

/* ═══════════════════════════════════════════
   TABLE
═══════════════════════════════════════════ */
.table-wrap { overflow-x: auto; }

table.main-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
}

table.main-table thead th {
    background: var(--blue-light);
    color: var(--blue-deep);
    font-size: 12px;
    font-weight: 700;
    padding: 12px 16px;
    text-align: left;
    letter-spacing: .5px;
    text-transform: uppercase;
    border-bottom: 2px solid var(--blue-mid);
    white-space: nowrap;
    cursor: pointer;
    user-select: none;
    transition: background .15s;
}

table.main-table thead th:hover { background: var(--blue-mid); }

table.main-table thead th .sort-icon {
    font-size: 11px;
    margin-left: 4px;
    color: var(--blue-border);
}

table.main-table tbody tr {
    border-bottom: 1px solid var(--grey-100);
    transition: background .12s;
}

table.main-table tbody tr:hover { background: var(--blue-light); }

table.main-table tbody td {
    padding: 13px 16px;
    font-size: 13.5px;
    color: var(--grey-800);
    vertical-align: middle;
}

/* ── Cell helpers ── */
.td-id    { font-weight: 700; color: var(--blue); font-size: 13px; }
.td-name  { font-weight: 600; color: var(--text); }
.td-sub   { font-size: 12px; color: var(--grey-400); margin-top: 2px; }

.td-name-wrap {
    display: flex;
    align-items: center;
}

/* Avatar — background cycles through accent colours via nth-child */
.td-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    margin-right: 10px;
    flex-shrink: 0;
    background: var(--blue);           /* default */
}

/* Cycle through 6 colours so consecutive rows look distinct */
tr:nth-child(6n+1) .td-avatar { background: #1a56db; }
tr:nth-child(6n+2) .td-avatar { background: #7c3aed; }
tr:nth-child(6n+3) .td-avatar { background: #0891b2; }
tr:nth-child(6n+4) .td-avatar { background: #16a34a; }
tr:nth-child(6n+5) .td-avatar { background: #d97706; }
tr:nth-child(6n+0) .td-avatar { background: #dc2626; }

/* ═══════════════════════════════════════════
   BADGES
═══════════════════════════════════════════ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 11.5px;
    font-weight: 700;
    letter-spacing: .2px;
}

.badge.online   { background: var(--green-light);  color: var(--green);  }
.badge.campus   { background: var(--blue-light);   color: var(--blue);   }
.badge.pending  { background: var(--amber-light);  color: var(--amber);  }
.badge.approved { background: var(--green-light);  color: var(--green);  }
.badge.rejected { background: var(--red-light);    color: var(--red);    }
.badge.review   { background: var(--purple-light); color: var(--purple); }

/* ═══════════════════════════════════════════
   ACTION BUTTONS — base
═══════════════════════════════════════════ */
.action-btns {
    display: flex;
    gap: 5px;
    align-items: center;
    flex-wrap: wrap;
}

.act-btn {
    width: 32px;
    height: 32px;
    border-radius: 7px;
    border: 1.5px solid var(--grey-200);
    background: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    cursor: pointer;
    transition: all .15s;
    text-decoration: none;
    color: var(--grey-600);
}

/* Individual hover states */
.act-btn.view:hover  { border-color: var(--blue);  color: var(--blue);  background: var(--blue-light);  }
.act-btn.edit:hover  { border-color: var(--amber); color: var(--amber); background: var(--amber-light); }
.act-btn.del:hover   { border-color: var(--red);   color: var(--red);   background: var(--red-light);   }

/* ─── PDF button variants ─────────────────
   .has-pdf  →  green  (saved PDF ready)
   .no-pdf   →  amber  (never generated)
   .regen    →  slate  (force regenerate)
──────────────────────────────────────── */
.act-btn.has-pdf {
    color: var(--green);
    background: var(--green-light);
    border-color: #bbf7d0;
}

.act-btn.has-pdf:hover {
    background: var(--green);
    border-color: var(--green);
    color: #fff;
}

.act-btn.no-pdf {
    color: var(--amber);
    background: var(--amber-light);
    border-color: #fde68a;
}

.act-btn.no-pdf:hover {
    background: var(--amber);
    border-color: var(--amber);
    color: #fff;
}

.act-btn.regen {
    color: var(--grey-600);
    background: var(--grey-100);
    border-color: var(--grey-200);
}

.act-btn.regen:hover {
    background: var(--grey-600);
    border-color: var(--grey-600);
    color: #fff;
}

.act-btn:disabled {
    opacity: .55;
    cursor: not-allowed;
    pointer-events: none;
}

/* ═══════════════════════════════════════════
   LOADING / EMPTY STATES
═══════════════════════════════════════════ */
.loading-row td {
    padding: 40px;
    text-align: center;
    color: var(--grey-400);
    font-size: 14px;
}

.empty-state {
    padding: 60px 20px;
    text-align: center;
    color: var(--grey-400);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 12px;
    display: block;
    color: var(--blue-border);
}

.empty-state p { font-size: 14px; font-weight: 500; }

/* ═══════════════════════════════════════════
   SPINNERS
═══════════════════════════════════════════ */
@keyframes spin { to { transform: rotate(360deg); } }

/* Block spinner (loading row) */
.spinner-sm {
    width: 20px;
    height: 20px;
    border: 2.5px solid var(--blue-mid);
    border-top-color: var(--blue);
    border-radius: 50%;
    animation: spin .7s linear infinite;
    display: inline-block;
    vertical-align: middle;
    margin-right: 8px;
}

/* Inline spinner (inside a button while loading) */
.spinner-sm-inline {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin .6s linear infinite;
    display: inline-block;
}

/* Class applied to any icon that should spin */
.spin { display: inline-block; animation: spin .8s linear infinite; }

/* ═══════════════════════════════════════════
   PAGINATION (custom)
═══════════════════════════════════════════ */
.pagination-wrap {
    padding: 16px 28px;
    border-top: 1.5px solid var(--grey-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    background: #fafbff;
}

.pag-info { font-size: 13px; color: var(--grey-400); font-weight: 500; }
.pag-info strong { color: var(--grey-800); }

.pag-btns {
    display: flex;
    gap: 4px;
    align-items: center;
    flex-wrap: wrap;
}

.pag-btn {
    min-width: 34px;
    height: 34px;
    border-radius: 7px;
    border: 1.5px solid var(--grey-200);
    background: #fff;
    color: var(--grey-600);
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all .15s;
    padding: 0 8px;
    font-family: 'DM Sans', sans-serif;
}

.pag-btn:hover {
    border-color: var(--blue-border);
    color: var(--blue);
    background: var(--blue-light);
}

.pag-btn.active {
    background: var(--blue);
    border-color: var(--blue);
    color: #fff;
}

.pag-btn:disabled { opacity: .4; cursor: not-allowed; }
.pag-btn.pag-prev,
.pag-btn.pag-next  { font-size: 16px; }

/* ─── DataTables native controls — hidden (we use custom toolbar) */
.dataTables_length,
.dataTables_filter,
.dataTables_info,
.dataTables_paginate { display: none !important; }

/* DataTables processing overlay */
.dataTables_processing {
    background: rgba(255,255,255,.9) !important;
    border: 1.5px solid var(--blue-border) !important;
    border-radius: var(--radius-sm) !important;
    color: var(--blue) !important;
    font-size: 13px !important;
    font-family: 'DM Sans', sans-serif !important;
}

/* ═══════════════════════════════════════════
   MODAL
═══════════════════════════════════════════ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.open { display: flex; }

.modal-box {
    background: #fff;
    border-radius: 14px;
    width: 100%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0,0,0,.2);
    animation: modalIn .22s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(14px) scale(.97); }
    to   { opacity: 1; transform: translateY(0)    scale(1);   }
}

.modal-header {
    padding: 20px 28px;
    border-bottom: 1.5px solid var(--grey-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, var(--blue-deep), #1e4fac);
    border-radius: 14px 14px 0 0;
}

.modal-header h3 {
    font-family: 'Cormorant Garamond', serif;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
}

.modal-close {
    background: rgba(255,255,255,.1);
    border: none;
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s;
    flex-shrink: 0;
}

.modal-close:hover { background: rgba(255,255,255,.25); }

.modal-body { padding: 24px 28px; }

/* ── Modal content grid (new viewStudent layout) ── */
.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px 24px;
}

.modal-field {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 10px 14px;
    background: var(--grey-50);
    border: 1px solid var(--grey-100);
    border-radius: var(--radius-sm);
}

.field-label {
    font-size: 10.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--grey-400);
}

.modal-field > span {
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
    word-break: break-word;
}

/* ── Legacy detail grid (kept for backward compatibility) ── */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.detail-item label {
    font-size: 11px;
    font-weight: 700;
    color: var(--grey-400);
    text-transform: uppercase;
    letter-spacing: .5px;
    display: block;
    margin-bottom: 3px;
}

.detail-item span {
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
}

.detail-section { margin-bottom: 20px; }

.detail-section-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 16px;
    font-weight: 700;
    color: var(--blue-deep);
    border-bottom: 1.5px solid var(--blue-mid);
    padding-bottom: 8px;
    margin-bottom: 14px;
}

/* ─── PDF link inside modal ── */
.pdf-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--red);
    font-weight: 600;
    font-size: 13px;
    text-decoration: none;
    padding: 3px 8px;
    border-radius: 4px;
    transition: background .15s;
}

.pdf-link:hover {
    background: var(--red-light);
    text-decoration: underline;
}

/* ═══════════════════════════════════════════
   UTILITY CLASSES
═══════════════════════════════════════════ */
.text-muted  { color: var(--grey-400); font-size: 13px; }
.text-center { text-align: center; }

/* ═══════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════ */
@media (max-width: 900px) {
    .page-wrap    { padding: 20px 16px 50px; }
    .stats-row    { grid-template-columns: 1fr 1fr; }
    .top-nav      { padding: 0 18px; }

    .table-card-header,
    .toolbar,
    .pagination-wrap { padding: 14px 16px; }

    table.main-table tbody td { padding: 11px 12px; }

    .modal-grid { grid-template-columns: 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .stats-row    { grid-template-columns: 1fr; }
    .toolbar-right { width: 100%; }
    .action-btns  { gap: 3px; }
    .act-btn      { width: 28px; height: 28px; font-size: 12px; }
    .modal-box    { border-radius: 10px; }
}