/* Administration.css */
:root {
    --bg-main: #eef4ff;
    --bg-nav: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --info: #0ea5e9;
    --success: #10b981;
    --card-soft: #f8fbff;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --danger-bg: #fef2f2;
    --radius: 14px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    background:
        radial-gradient(circle at top left, rgba(79, 70, 229, 0.14), transparent 32rem),
        linear-gradient(135deg, #eef4ff 0%, #f8fbff 44%, #f1f5f9 100%);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* Administration has its own compact header. If an older cached common.js
   injects the global school frame, keep this page usable instead of buried. */
body > .erp-school-frame {
    display: none !important;
}

/* Typography Helpers */
h1, h2, h3, h4 { margin: 0; font-weight: 600; }

/* Top Nav */
.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-nav);
    padding: 0.75rem 1.4rem;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 80;
    min-height: 58px;
}

.logo-area { display: flex; align-items: center; gap: 0.75rem; }
.logo-area h2 { font-size: 1.25rem; font-weight: 700; color: var(--primary); }
.actions {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-link {
    display: inline-flex; align-items: center; gap: 0.5rem;
    color: var(--text-secondary); text-decoration: none;
    font-weight: 600; padding: 0.48rem 0.72rem; border-radius: 999px;
    transition: var(--transition);
    border: 1px solid transparent;
}
.nav-link:hover { background-color: #eef2ff; color: var(--primary); border-color: #c7d2fe; }

/* Layout */
.admin-container {
    display: grid;
    grid-template-columns: 320px minmax(0, 1fr);
    gap: 0;
    min-height: calc(100vh - 58px);
    position: relative;
    isolation: isolate;
}

/* Sidebar */
.admin-sidebar {
    grid-column: 1;
    grid-row: 1;
    background: #ffffff;
    border-right: 1px solid var(--border-color);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    position: sticky;
    top: 65px;
    height: calc(100vh - 65px);
    overflow-y: auto;
    z-index: 30;
    box-shadow: 8px 0 28px rgba(15, 23, 42, 0.06);
}

.sidebar-group h3 {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    padding-left: 0.75rem;
}

.tab-btn {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 0.75rem;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 0.25rem;
    font-family: 'Inter', sans-serif;
}

.tab-btn i { font-size: 1.25rem; color: var(--text-secondary); transition: var(--transition); }

.tab-btn:hover { background-color: var(--bg-main); }
.tab-btn.active {
    background-color: #eef2ff;
    color: var(--primary);
    font-weight: 600;
}
.tab-btn.active i { color: var(--primary); }

.danger-group h3 { color: var(--danger); }
.danger-tab-btn:hover { background-color: var(--danger-bg); color: var(--danger); }
.danger-tab-btn:hover i { color: var(--danger); }
.danger-tab-btn.active { background-color: var(--danger-bg); color: var(--danger); box-shadow: inset 2px 0 0 var(--danger); }
.danger-tab-btn.active i { color: var(--danger); }

/* Main Content */
.admin-content {
    grid-column: 2;
    grid-row: 1;
    width: 100%;
    margin: 0;
    padding: 1.35rem 1.75rem 2rem;
    color: var(--text-primary);
    min-width: 0;
    overflow: hidden;
}

.tab-pane { display: none; animation: fadeIn 0.3s ease-out; }
.tab-pane.active { display: block; }
#course-section.active { display: block !important; }
#course-section.active #courseComponentsAnchor,
#course-section.active #course-container,
#course-section.active #section-container {
    visibility: visible !important;
    opacity: 1 !important;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.pane-header {
    margin-bottom: 1.1rem;
    padding: 1.1rem 1.25rem;
    border: 1px solid rgba(148, 163, 184, 0.28);
    border-radius: 22px;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(239, 246, 255, 0.9));
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
}
.pane-header h2 { font-size: 1.5rem; display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.35rem; color: #102033;}
.pane-header p { color: var(--text-secondary); margin: 0; font-size: 0.95rem; line-height: 1.5; }

.danger-header h2 { color: var(--danger); }

.grid-2-col { display: grid; grid-template-columns: repeat(2, minmax(320px, 1fr)); gap: 1.25rem; align-items: start; }
.grid-3-col { display: grid; grid-template-columns: repeat(3, minmax(260px, 1fr)); gap: 1.25rem; align-items: start; }
.mt-4 { margin-top: 1.5rem; }

/* Settings Cards */
.course-components-anchor {
    margin-bottom: 1.25rem;
}

.course-components-anchor .card-body p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.5;
}

.settings-card {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 251, 255, 0.96));
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background:
        linear-gradient(135deg, #ffffff, #f4f7fb);
}

.card-header h3 { font-size: 1.08rem; display: flex; align-items: center; gap: 0.5rem; color: #0f172a; }
.badge { background: #e2e8f0; color: #475569; font-size: 0.75rem; padding: 0.32rem 0.58rem; border-radius: 999px; font-weight: 700;}

.card-body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column;}

.items-list {
    flex: 1;
    max-height: 320px;
    overflow-y: auto;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: #f8fafc;
}

/* Scrollbar customization */
.items-list::-webkit-scrollbar { width: 6px; }
.items-list::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }

.item-row {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
    transition: var(--transition);
}
.item-row:last-child { border-bottom: none; }
.item-row:hover { background: #f1f5f9; }

.item-actions button {
    background: transparent; border: none; color: var(--text-secondary); 
    cursor: pointer; padding: 0.25rem; font-size: 1.1rem; border-radius: 4px;
    transition: var(--transition);
}
.item-actions button:hover { background: var(--border-color); color: var(--danger); transform: scale(1.1); }

/* Forms */
.add-form {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) auto;
    gap: 0.65rem;
    align-items: stretch;
}
.form-group { width: 100%; margin-bottom: 1rem; }
.form-group.row { display: flex; gap: 1rem; align-items: center; }

input[type="text"], input[type="number"], select {
    width: 100%;
    min-width: 0;
    flex: 1 1 220px;
    padding: 0.78rem 0.9rem;
    border: 1px solid var(--border-color);
    border-radius: 13px;
    outline: none;
    font-family: inherit; font-size: 0.98rem;
    color: #0f172a;
    background: #ffffff;
    transition: var(--transition);
}
input[type="text"]:focus, input[type="number"]:focus, select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1); }

.add-btn {
    background: var(--primary);
    color: #ffffff !important;
    border: none; border-radius: var(--radius);
    min-width: 178px;
    padding: 0 1rem; cursor: pointer;
    transition: var(--transition);
    display: flex; align-items: center; justify-content: center;
    gap: 0.35rem;
    font-weight: 800;
}
.add-btn:hover { background: var(--primary-hover); color: #ffffff !important; transform: translateY(-1px); }
.add-btn i { font-size: 1.25rem; color: currentColor !important; }
.add-btn-label { color: currentColor; }

.btn { padding: 0.78rem 1.1rem; border-radius: 13px; font-weight: 700; font-family: inherit; cursor: pointer; border: none; transition: var(--transition); display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem; white-space: nowrap; color: #0f172a; }
.btn i { color: currentColor !important; }
.btn-primary { background: var(--primary); color: #ffffff !important; }
.btn-primary:hover { background: var(--primary-hover); color: #ffffff !important; }
.btn-secondary { background: #e2e8f0; color: #0f172a !important; border: 1px solid #cbd5e1; }
.btn-secondary:hover { background: #cbd5e1; color: #0f172a !important; }
.btn-danger { background: var(--danger); color: #ffffff !important; }
.btn-danger:hover { background: var(--danger-hover); color: #ffffff !important; }

/* Danger styling override */
.border-danger { border-color: #fca5a5; }
.danger-bg { background-color: var(--danger-bg); border-bottom-color: #fca5a5; }

/* Loading Spinner */
.loader-overlay {
    position: fixed; inset: 0; background: rgba(255,255,255,0.7);
    backdrop-filter: blur(4px); z-index: 9999;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    transition: opacity 0.3s;
}
.loader-overlay.hidden { opacity: 0; pointer-events: none; display: none; }
.spinner {
    width: 50px; height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader-text { font-weight: 600; color: var(--primary); font-size: 1.1rem; }

/* Dynamic dependencies layout */
.dynamic-inputs {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.65rem;
}

.academic-year-layout {
    display: grid;
    grid-template-columns: minmax(360px, 0.92fr) minmax(420px, 1.08fr);
    gap: 1.25rem;
    align-items: stretch;
}

.accent-card {
    border-color: rgba(79, 70, 229, 0.24);
    background:
        radial-gradient(circle at top right, rgba(14, 165, 233, 0.16), transparent 18rem),
        linear-gradient(135deg, #ffffff, #f6f9ff);
}

.current-year-card .card-header {
    background:
        linear-gradient(135deg, rgba(79, 70, 229, 0.12), rgba(14, 165, 233, 0.1)),
        #ffffff;
}

.current-year-badge {
    background: #dbeafe;
    color: #1d4ed8;
}

.current-year-copy {
    display: grid;
    gap: 0.45rem;
    margin-bottom: 1rem;
    padding: 0.95rem;
    border: 1px solid #dbeafe;
    border-radius: 16px;
    background: #eff6ff;
    color: #334155;
    line-height: 1.45;
}

.current-year-copy strong {
    color: #0f172a;
}

.current-year-picker {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.8rem;
    align-items: end;
}

.current-year-picker label {
    grid-column: 1 / -1;
    color: #475569;
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.current-year-picker select {
    min-height: 50px;
    border-color: #bfdbfe;
    background: #ffffff;
    font-weight: 700;
}

.current-year-save {
    min-height: 50px;
    width: 100%;
    background: linear-gradient(135deg, #2563eb, #4f46e5);
    color: #ffffff !important;
    box-shadow: 0 14px 28px rgba(37, 99, 235, 0.22);
}

.current-year-note {
    margin-top: 0.9rem;
    padding: 0.8rem 0.9rem;
    border-radius: 14px;
    background: #f8fafc;
    border: 1px dashed #cbd5e1;
    color: #64748b;
    font-size: 0.92rem;
}

.current-year-note.success {
    color: #047857;
    background: #ecfdf5;
    border-color: #a7f3d0;
}

.current-year-note.warning {
    color: #b45309;
    background: #fffbeb;
    border-color: #fde68a;
}
/* Notification Styles */
.notifications-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

#notificationForm {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#notificationForm textarea {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.75rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    resize: vertical;
    transition: var(--transition);
}

#notificationForm textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

#notificationForm select,
#notificationForm input {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 0.75rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.95rem;
    transition: var(--transition);
}

#notificationForm select:focus,
#notificationForm input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.grid-2-col {
    display: grid;
    grid-template-columns: repeat(2, minmax(320px, 1fr));
    gap: 1rem;
    align-items: start;
}

.row {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.btn-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
}

.btn-edit {
    background-color: #3b82f6;
    color: white;
    border: none;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: var(--transition);
}

.btn-edit:hover {
    background-color: #2563eb;
}

.text-gray {
    color: var(--text-secondary);
}

.school-profile-form {
    display: grid;
    gap: 1rem;
}

.school-profile-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.school-profile-grid .wide {
    grid-column: 1 / -1;
}

.school-profile-grid textarea {
    min-height: 108px;
    resize: vertical;
}

.school-profile-preview {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.school-logo-preview {
    width: 96px;
    height: 96px;
    object-fit: contain;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: #fff;
    padding: 0.5rem;
}

.school-logo-clear {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

@media (max-width: 1180px) {
    .admin-container {
        grid-template-columns: 1fr;
    }

    .admin-content {
        grid-column: 1;
        grid-row: 1;
        order: -1;
    }

    .admin-sidebar {
        grid-column: 1;
        grid-row: 2;
        position: static;
        height: auto;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }

    .academic-year-layout,
    .grid-2-col,
    .grid-3-col {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 760px) {
    .top-nav {
        align-items: flex-start;
        flex-direction: column;
    }

    .actions {
        justify-content: flex-start;
    }

    .admin-content {
        padding: 1rem;
    }

    .current-year-picker,
    .add-form {
        grid-template-columns: 1fr;
    }

    .add-btn,
    .current-year-save {
        min-height: 48px;
        width: 100%;
    }

    .school-profile-grid {
        grid-template-columns: 1fr;
    }
}