/* =========================================
   Teacher Profile — Modern Profile Layout
   Matches Student Detail design pattern
   Uses SchoolConnect Design Tokens
   ========================================= */

/* Base Layout */
.sc-page {
    font-family: var(--sc-font-sans);
}

/* Loading & Empty States */
.td-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    gap: var(--sc-space-4);
    color: var(--sc-text-secondary);
}

.td-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    gap: var(--sc-space-4);
    text-align: center;
}

.td-empty-icon-wrap {
    width: 80px;
    height: 80px;
    border-radius: var(--sc-radius-full);
    background: var(--sc-primary-100);
    display: flex;
    align-items: center;
    justify-content: center;
}

.td-empty-icon {
    font-size: 2.5rem !important;
    color: var(--sc-text-disabled);
}

.td-empty h2 {
    margin: 0;
    font-size: var(--sc-text-xl);
    font-weight: var(--sc-font-semibold);
    color: var(--sc-text-primary);
}

.td-empty p {
    color: var(--sc-text-secondary);
    max-width: 400px;
    margin: 0;
    line-height: var(--sc-leading-relaxed);
}

/* Breadcrumb */
.td-breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--sc-space-2);
    font-size: var(--sc-text-sm);
    margin-bottom: var(--sc-space-6);
}

.td-breadcrumb a {
    display: inline-flex;
    align-items: center;
    gap: var(--sc-space-1);
    color: var(--sc-text-secondary);
    text-decoration: none;
    transition: color var(--sc-transition-fast);
}

.td-breadcrumb a:hover {
    color: var(--sc-primary-500);
}

.td-breadcrumb a .rzi {
    font-size: 1rem !important;
}

.td-breadcrumb-sep {
    color: var(--sc-gray-300);
    font-weight: var(--sc-font-light);
    user-select: none;
}

.td-breadcrumb-current {
    color: var(--sc-text-primary);
    font-weight: var(--sc-font-medium);
}

/* =========================================
   Hero Header
   ========================================= */
.td-hero {
    position: relative;
    overflow: hidden;
    margin-bottom: var(--sc-space-10);
    background: none;
    border: none;
    border-radius: 0;
}

.td-hero-bg {
    display: none;
}

.td-hero-bg::before {
    display: none;
}

.td-hero-bg::after {
    display: none;
}

.td-hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0;
    gap: var(--sc-space-6);
}

.td-hero-left {
    display: flex;
    align-items: center;
    gap: var(--sc-space-6);
    min-width: 0;
}

/* td-avatar styles are defined globally in hero-header.css (design system) */

/* Hero Info */
.td-hero-info {
    min-width: 0;
}

.td-hero-info h1 {
    margin: 0;
    margin-block: 0;
    font-size: var(--sc-hero-title-size, 1.75rem);
    font-weight: var(--sc-font-bold);
    color: var(--rz-text-color);
    letter-spacing: -0.3px;
    line-height: var(--sc-leading-tight);
    text-shadow: none;
}

.td-hero-subtitle {
    margin: 0.25rem 0 0;
    font-size: 0.9rem;
    color: var(--rz-text-secondary-color);
    opacity: 1;
    line-height: 1.4;
}

.td-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sc-space-2);
}

.td-meta-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--sc-space-1);
    padding: 0.2rem 0.65rem;
    border-radius: var(--sc-radius-full);
    font-size: var(--sc-text-xs);
    font-weight: var(--sc-font-medium);
    background: rgba(var(--sc-primary-rgb), 0.08);
    color: var(--rz-text-color);
    backdrop-filter: none;
    transition: background var(--sc-transition-fast);
    line-height: var(--sc-leading-normal);
}

.td-meta-chip:hover {
    background: rgba(var(--sc-primary-rgb), 0.12);
}

.td-meta-chip .rzi {
    font-size: 0.85rem !important;
    opacity: 0.85;
}

.td-meta-chip.status.success {
    background: rgba(var(--sc-primary-rgb), 0.15);
}

.td-meta-chip.status.warning {
    background: rgba(245, 158, 11, 0.15);
}

.td-meta-chip.status.danger {
    background: rgba(239, 68, 68, 0.15);
}

/* Hero Action Buttons */
.td-hero-actions {
    display: flex;
    gap: var(--sc-space-2);
    flex-shrink: 0;
}

.td-hero-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--sc-space-2);
    padding: 0.5rem 1rem;
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-lg);
    background: var(--sc-surface);
    color: var(--rz-text-color);
    font-size: var(--sc-text-sm);
    font-weight: var(--sc-font-medium);
    cursor: pointer;
    transition: all var(--sc-transition-fast);
    backdrop-filter: none;
    white-space: nowrap;
}

.td-hero-btn:hover {
    background: var(--sc-hover-bg);
    border-color: var(--sc-primary-300);
    transform: translateY(-1px);
}

.td-hero-btn .rzi {
    font-size: 1.1rem !important;
}

.td-hero-btn.icon-only {
    padding: 0.5rem;
    aspect-ratio: 1;
}

.td-hero-btn.icon-only span {
    display: none;
}

.td-hero-btn.primary {
    background: var(--sc-primary-500);
    border-color: var(--sc-primary-500);
    color: var(--sc-text-inverse);
}

.td-hero-btn.primary:hover {
    background: var(--sc-primary-500);
}

/* Hero Stats Strip */
.td-hero-stats {
    display: flex;
    gap: var(--sc-space-1);
    padding: var(--sc-space-3) 0;
    margin-top: var(--sc-space-4);
    border-top: 1px solid var(--sc-border);
    position: relative;
    z-index: 1;
}

.td-hero-stat {
    display: flex;
    align-items: center;
    gap: var(--sc-space-2);
    padding: var(--sc-space-2) var(--sc-space-4);
    border-radius: var(--sc-radius-lg);
    background: rgba(var(--sc-primary-rgb), 0.04);
    transition: background var(--sc-transition-fast);
    flex: 1;
    min-width: 0;
}

.td-hero-stat:hover {
    background: rgba(var(--sc-primary-rgb), 0.08);
}

.td-hero-stat .rzi {
    font-size: 1.15rem !important;
    color: var(--sc-primary-500);
    opacity: 0.8;
    flex-shrink: 0;
}

.td-hero-stat-val {
    font-size: var(--sc-hero-stat-value-size, 1rem);
    font-weight: var(--sc-font-bold);
    color: var(--rz-text-color);
    line-height: var(--sc-leading-none);
}

.td-hero-stat-lbl {
    font-size: var(--sc-hero-stat-label-size, 0.7rem);
    color: var(--rz-text-secondary-color);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: var(--sc-font-medium);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* =========================================
   Content Area — Vertical Tabs
   ========================================= */
.td-content {
    display: flex;
    gap: 0;
    background: var(--sc-surface);
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-xl);
    overflow: hidden;
    min-height: 520px;
}

/* Sidebar Navigation */
.td-sidebar {
    width: 230px;
    flex-shrink: 0;
    background: var(--sc-gray-100, #f1f5f9);
    border-right: none;
    display: flex;
    flex-direction: column;
    padding: var(--sc-space-3) 0;
    gap: var(--sc-space-1);
}

.td-sidebar-heading {
    font-size: var(--sc-text-xs);
    font-weight: var(--sc-font-semibold);
    color: var(--sc-text-disabled);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: var(--sc-space-1) var(--sc-space-4);
    margin-bottom: var(--sc-space-2);
}

.td-nav-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--sc-space-2);
    padding: 0.625rem 0.875rem;
    border: none;
    border-left: 3px solid transparent;
    background: transparent;
    color: var(--sc-text-secondary, #64748b);
    font-size: var(--sc-text-sm);
    font-weight: var(--sc-font-medium);
    cursor: pointer;
    border-radius: 0;
    transition: color var(--sc-transition-fast), background var(--sc-transition-fast), border-color var(--sc-transition-fast);
    text-align: left;
    width: 100%;
    line-height: var(--sc-leading-normal);
}

.td-nav-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.td-nav-icon .rzi {
    font-size: 1.125rem !important;
    transition: color var(--sc-transition-fast);
}

.td-nav-label {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.td-nav-item:hover {
    color: var(--sc-primary-500, #2563eb);
}

.td-nav-item.active {
    background: var(--sc-surface, #fff);
    color: var(--sc-primary-500, #2563eb);
    border-left-color: var(--sc-primary-500, #2563eb);
    font-weight: var(--sc-font-semibold);
}

.td-nav-item.active .td-nav-icon .rzi {
    color: var(--sc-primary-500, #2563eb);
}

.td-nav-indicator {
    display: none;
}

/* Tab Content */
.td-tab-content {
    flex: 1;
    padding: var(--sc-space-6) var(--sc-space-8);
    overflow-y: auto;
    min-width: 0;
}

/* Info Grid */
.td-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sc-space-1);
}

.td-info-item {
    display: flex;
    flex-direction: column;
    gap: var(--sc-space-1);
    padding: var(--sc-space-3) var(--sc-space-4);
    border-radius: var(--sc-radius-lg);
    transition: background var(--sc-transition-fast);
}

.td-info-item:hover {
    background: var(--sc-surface-variant);
}

.td-info-label {
    font-size: var(--sc-text-xs);
    font-weight: var(--sc-font-semibold);
    color: var(--sc-text-disabled);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    line-height: var(--sc-leading-normal);
}

.td-info-value {
    font-size: var(--sc-text-sm);
    font-weight: var(--sc-font-medium);
    color: var(--sc-text-primary);
    line-height: var(--sc-leading-normal);
}

.td-info-value.muted {
    color: var(--sc-text-disabled);
    font-style: italic;
}

/* Subject/Tag Chips */
.td-subject-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sc-space-2);
}

.td-subject-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--sc-space-2);
    padding: var(--sc-space-2) var(--sc-space-3);
    background: var(--sc-surface-variant);
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-md);
    font-size: var(--sc-text-sm);
    font-weight: var(--sc-font-medium);
    color: var(--sc-text-primary);
    transition: all var(--sc-transition-fast);
}

.td-subject-chip:hover {
    background: var(--sc-gray-200);
    border-color: var(--sc-gray-300);
}

.td-subject-chip .rzi {
    font-size: 1rem !important;
    color: var(--sc-primary-500);
}

.td-subject-chip-removable {
    padding-right: var(--sc-space-2);
}

.td-chip-remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    padding: 0 2px;
    margin-left: 2px;
    cursor: pointer;
    border-radius: var(--sc-radius-sm);
    color: var(--sc-text-secondary);
    line-height: 1;
    transition: color var(--sc-transition-fast), background var(--sc-transition-fast);
}

.td-chip-remove:hover {
    color: var(--sc-error);
    background: rgba(var(--sc-error-rgb, 239, 68, 68), 0.08);
}

.td-chip-remove .rzi {
    font-size: 0.85rem !important;
    color: inherit !important;
}

/* Subject Cards Grid */
.td-subject-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--sc-space-3);
}

.td-subject-card {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--sc-surface-variant);
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-md);
    transition: all 0.15s ease;
}

.td-subject-card:hover {
    border-color: var(--sc-primary-200);
}

.td-subject-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--sc-primary-50);
    color: var(--sc-primary-500);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.td-subject-card-icon .rzi {
    font-size: 1.125rem !important;
}

.td-subject-card-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.td-subject-card-name {
    font-size: var(--sc-text-sm);
    font-weight: 600;
    color: var(--sc-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.td-subject-card-phase {
    font-size: var(--sc-text-xs);
    color: var(--sc-text-secondary);
}

/* Phase / grade-level chips shown on the subject card so the teacher's
   per-subject capability is visible at a glance (replaces the previous
   separate "Phase / Grade Levels" section). */
.td-subject-card-levels {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-top: 0.25rem;
}

.td-subject-level-chip {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--sc-primary-700, var(--sc-primary-500));
    background: var(--sc-primary-50, rgba(59, 130, 246, 0.08));
    border: 1px solid var(--sc-primary-200, var(--sc-primary-500));
    padding: 1px 8px;
    border-radius: 999px;
    line-height: 1.4;
    white-space: nowrap;
}

.td-subject-card-levels-empty {
    font-size: 0.7rem;
    color: var(--sc-text-secondary);
    font-style: italic;
}

/* ── Centre cards — same visual language as subject cards so the
   Assigned Centres tab feels consistent with the Teaching tab.
   Replaces the cramped chip-row layout that wasted the page width. */
.td-centre-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--sc-space-3);
}

.td-centre-card {
    display: flex;
    align-items: flex-start;
    gap: var(--sc-space-3);
    padding: var(--sc-space-3) var(--sc-space-4);
    border: 1px solid var(--sc-border);
    border-radius: 12px;
    background: var(--sc-surface, #fff);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.td-centre-card:hover {
    border-color: var(--sc-primary-400, var(--sc-primary-500));
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.td-centre-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--sc-primary-50, rgba(59, 130, 246, 0.08));
    color: var(--sc-primary-500, var(--sc-primary-500));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.td-centre-card-icon .rzi {
    font-size: 1.15rem;
}

.td-centre-card-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.td-centre-card-name-row {
    display: flex;
    align-items: center;
    gap: var(--sc-space-2);
    flex-wrap: wrap;
}

.td-centre-card-name {
    font-size: var(--sc-text-sm);
    font-weight: 600;
    color: var(--sc-text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
}

.td-centre-main-badge {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--sc-success-700, #0f5132);
    background: var(--sc-success-50, rgba(16, 185, 129, 0.12));
    border: 1px solid var(--sc-success-200, rgba(16, 185, 129, 0.4));
    padding: 1px 8px;
    border-radius: 999px;
}

.td-centre-card-meta {
    display: flex;
    align-items: center;
    gap: var(--sc-space-3);
    flex-wrap: wrap;
    font-size: 0.75rem;
    color: var(--sc-text-secondary);
}

.td-centre-card-code {
    font-family: var(--sc-font-mono, monospace);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--sc-text-secondary);
    background: var(--sc-surface-variant, var(--sc-surface-muted));
    border: 1px solid var(--sc-border);
    padding: 1px 8px;
    border-radius: 6px;
}

.td-centre-card-location {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.td-centre-card-location .rzi {
    font-size: 0.85rem;
    color: var(--sc-text-tertiary, var(--sc-text-secondary));
}

.td-subject-card-name-row {
    display: flex;
    align-items: center;
    gap: var(--sc-space-2);
    min-width: 0;
}

/* Examination-board badge on a subject card. Distinguishes same-named subjects
   from different boards (e.g. "Social Sciences" CAPS vs IEB) in multi-board
   institutes. */
.td-subject-card-board,
.td-chip-board {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: var(--sc-text-secondary);
    background: var(--sc-surface-variant, var(--sc-surface-muted));
    border: 1px solid var(--sc-border);
    padding: 0.05rem 0.4rem;
    border-radius: 999px;
    text-transform: uppercase;
    font-family: var(--sc-font-mono, monospace);
    flex-shrink: 0;
}

.td-chip-board {
    margin-left: var(--sc-space-1);
}

.td-subject-card .icon-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid transparent;
    background: transparent;
    color: var(--sc-primary-500);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.15s ease;
}

.td-subject-card .icon-btn:hover {
    border-color: var(--sc-border);
    background: var(--sc-surface-muted);
    color: var(--sc-error);
}

.td-subject-card .icon-btn .rzi {
    font-size: 0.875rem !important;
}

/* Classes Grid */
.td-classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--sc-space-4);
}

.td-class-card {
    background: var(--sc-surface);
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-xl);
    padding: var(--sc-space-5);
    cursor: pointer;
    transition: all var(--sc-transition-fast);
    position: relative;
    overflow: hidden;
}

.td-class-card:hover {
    border-color: var(--sc-primary-300);
    transform: translateY(-2px);
}

.td-class-card-color {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.td-class-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--sc-space-3);
}

.td-class-card-name {
    font-size: var(--sc-text-base);
    font-weight: var(--sc-font-semibold);
    color: var(--sc-text-primary);
    margin: 0;
}

.td-class-card-subject {
    display: inline-block;
    padding: var(--sc-space-1) var(--sc-space-2);
    border-radius: var(--sc-radius-md);
    font-size: var(--sc-text-xs);
    font-weight: var(--sc-font-medium);
}

.td-class-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--sc-space-3);
    margin-bottom: var(--sc-space-3);
    font-size: var(--sc-text-sm);
    color: var(--sc-text-secondary);
}

.td-class-card-meta span {
    display: inline-flex;
    align-items: center;
    gap: var(--sc-space-1);
}

.td-class-card-meta .rzi {
    font-size: 0.9rem !important;
    opacity: 0.7;
}

.td-class-card-stats {
    display: flex;
    gap: var(--sc-space-4);
    padding-top: var(--sc-space-3);
    border-top: 1px solid var(--sc-divider);
}

.td-class-stat {
    text-align: center;
}

.td-class-stat-val {
    font-size: var(--sc-text-base);
    font-weight: var(--sc-font-bold);
    color: var(--sc-text-primary);
}

.td-class-stat-lbl {
    font-size: var(--sc-text-xs);
    color: var(--sc-text-secondary);
}

/* Empty State */
.td-empty-mini {
    text-align: center;
    padding: var(--sc-space-8);
    color: var(--sc-text-secondary);
}

.td-empty-mini .rzi {
    font-size: 3rem !important;
    color: var(--sc-gray-300);
    margin-bottom: var(--sc-space-4);
}

.td-empty-mini h4 {
    margin: 0 0 var(--sc-space-2) 0;
    font-size: var(--sc-text-base);
    font-weight: var(--sc-font-semibold);
    color: var(--sc-text-primary);
}

.td-empty-mini p {
    margin: 0;
    font-size: var(--sc-text-sm);
    color: var(--sc-text-secondary);
}

/* Certifications */
.td-cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--sc-space-4);
}

.td-cert-card {
    background: var(--sc-surface);
    border: 1px solid var(--sc-border);
    border-radius: var(--sc-radius-xl);
    padding: var(--sc-space-5);
    transition: all var(--sc-transition-fast);
}

.td-cert-card:hover {
    border-color: var(--sc-gray-300);
}

.td-cert-card.expired {
    border-color: var(--sc-error-300);
    background: rgba(239, 68, 68, 0.03);
}

.td-cert-card.expiring {
    border-color: var(--sc-warning-300);
    background: rgba(245, 158, 11, 0.03);
}

.td-cert-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--sc-space-3);
}

.td-cert-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--sc-radius-md);
    background: var(--sc-success-100);
}

.td-cert-icon .rzi {
    font-size: 1.25rem !important;
    color: var(--sc-success-600);
}

.td-cert-icon.warning {
    background: var(--sc-warning-100);
}

.td-cert-icon.warning .rzi {
    color: var(--sc-warning-600);
}

.td-cert-icon.danger {
    background: var(--sc-error-100);
}

.td-cert-icon.danger .rzi {
    color: var(--sc-error-600);
}

.td-cert-status {
    display: inline-block;
    padding: var(--sc-space-1) var(--sc-space-2);
    border-radius: var(--sc-radius-md);
    font-size: var(--sc-text-xs);
    font-weight: var(--sc-font-semibold);
}

.td-cert-status.success {
    background: var(--sc-success-100);
    color: var(--sc-success-700);
}

.td-cert-status.warning {
    background: var(--sc-warning-100);
    color: var(--sc-warning-700);
}

.td-cert-status.danger {
    background: var(--sc-error-100);
    color: var(--sc-error-700);
}

.td-cert-name {
    font-size: var(--sc-text-base);
    font-weight: var(--sc-font-semibold);
    color: var(--sc-text-primary);
    margin: 0 0 var(--sc-space-1) 0;
}

.td-cert-issuer {
    font-size: var(--sc-text-sm);
    color: var(--sc-text-secondary);
    margin: 0 0 var(--sc-space-3) 0;
}

.td-cert-dates {
    display: flex;
    flex-direction: column;
    gap: var(--sc-space-1);
    font-size: var(--sc-text-xs);
    color: var(--sc-text-disabled);
}

/* Documents List */
.td-docs-list {
    display: flex;
    flex-direction: column;
    gap: var(--sc-space-3);
}

.td-doc-item {
    display: flex;
    align-items: center;
    gap: var(--sc-space-4);
    padding: var(--sc-space-4);
    background: var(--sc-surface-variant);
    border-radius: var(--sc-radius-lg);
    transition: background var(--sc-transition-fast);
}

.td-doc-item:hover {
    background: var(--sc-gray-200);
}

.td-doc-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--sc-radius-md);
    background: var(--sc-primary-100);
    flex-shrink: 0;
}

.td-doc-icon .rzi {
    font-size: 1.25rem !important;
    color: var(--sc-primary-500);
}

.td-doc-info {
    flex: 1;
    min-width: 0;
}

.td-doc-name {
    font-size: var(--sc-text-sm);
    font-weight: var(--sc-font-medium);
    color: var(--sc-text-primary);
    margin: 0 0 var(--sc-space-1) 0;
}

.td-doc-meta {
    font-size: var(--sc-text-xs);
    color: var(--sc-text-secondary);
}

.td-doc-actions {
    display: flex;
    gap: var(--sc-space-2);
}

/* Performance Metrics */
.td-metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--sc-space-4);
}

.td-metric-card {
    background: var(--sc-surface-variant);
    border-radius: var(--sc-radius-xl);
    padding: var(--sc-space-5);
}

.td-metric-header {
    display: flex;
    align-items: center;
    gap: var(--sc-space-2);
    margin-bottom: var(--sc-space-3);
    font-size: var(--sc-text-sm);
    color: var(--sc-text-secondary);
}

.td-metric-header .rzi {
    font-size: 1.1rem !important;
    color: var(--sc-primary-500);
}

.td-metric-value {
    font-size: var(--sc-text-2xl);
    font-weight: var(--sc-font-bold);
    color: var(--sc-text-primary);
    margin-bottom: var(--sc-space-2);
}

.td-metric-comparison {
    font-size: var(--sc-text-xs);
    color: var(--sc-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--sc-space-1);
}

.td-metric-comparison.positive {
    color: var(--sc-success-600);
}

.td-metric-comparison.negative {
    color: var(--sc-error-600);
}

/* Responsive */
@media (max-width: 1024px) {

    .td-content {
        flex-direction: column;
    }

    .td-sidebar {
        width: 100%;
        flex-direction: row;
        overflow-x: auto;
        border-right: none;
        border-bottom: 1px solid var(--sc-border);
        padding: var(--sc-space-2);
        gap: var(--sc-space-2);
    }

    .td-sidebar-heading {
        display: none;
    }

    .td-nav-item {
        flex-direction: column;
        gap: var(--sc-space-1);
        padding: var(--sc-space-2) var(--sc-space-3);
        min-width: fit-content;
        border-left: none;
        border-bottom: 3px solid transparent;
    }

    .td-nav-item.active {
        border-left-color: transparent;
        border-bottom-color: var(--sc-primary-500, #2563eb);
    }

    .td-nav-label {
        font-size: var(--sc-text-xs);
    }

    .td-nav-indicator {
        display: none;
    }

    .td-tab-content {
        padding: var(--sc-space-4);
    }
}

@media (max-width: 768px) {

    .td-hero-content {
        flex-direction: column;
        text-align: center;
        padding: var(--sc-space-5);
    }

    .td-hero-left {
        flex-direction: column;
    }

    .td-hero-stats {
        flex-wrap: wrap;
    }

    .td-hero-stat {
        flex: 1 1 45%;
    }

    .td-info-grid {
        grid-template-columns: 1fr;
    }

    .td-classes-grid {
        grid-template-columns: 1fr;
    }
}

/* ── Assign Class Side Panel ──────────────────────────────────────── */
.panel-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 1000;
    animation: td-overlay-in 0.2s ease;
}

@keyframes td-overlay-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.side-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 40vw;
    min-width: 400px;
    max-width: 600px;
    background: var(--sc-surface, #fff);
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    z-index: 10001;
    animation: slideInRight 0.3s ease;
    overflow: hidden;
}

@keyframes td-panel-in {
    from {
        transform: translateX(100%);
    }

    to {
        transform: translateX(0);
    }
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--sc-border);
    flex-shrink: 0;
}

.panel-header-title {
    display: flex;
    align-items: center;
    gap: 0.875rem;
}

.panel-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--sc-primary-50);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--sc-primary-500);
    flex-shrink: 0;
}

.panel-icon .rzi {
    font-size: 1.2rem !important;
}

.panel-header h3 {
    margin: 0;
    font-size: var(--sc-text-base);
    font-weight: 600;
    color: var(--sc-text-primary);
}

.panel-subtitle {
    margin: 0;
    font-size: var(--sc-text-xs);
    color: var(--sc-text-secondary);
}

.panel-close-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: var(--sc-radius-md);
    cursor: pointer;
    color: var(--sc-text-secondary);
    transition: background var(--sc-transition-fast), color var(--sc-transition-fast);
}

.panel-close-btn:hover {
    background: var(--sc-gray-100);
    color: var(--sc-text-primary);
}

.panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem 1.5rem;
    min-height: 0;
}

.panel-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--sc-border);
    flex-shrink: 0;
}

.panel-section {
    margin-bottom: 1.5rem;
}

.panel-section-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 0.75rem;
    font-size: var(--sc-text-sm);
    font-weight: 600;
    color: var(--sc-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.panel-selection-badge {
    font-size: var(--sc-text-xs);
    font-weight: 500;
    background: var(--sc-primary-100);
    color: var(--sc-primary-700);
    padding: 2px 8px;
    border-radius: 99px;
    text-transform: none;
    letter-spacing: 0;
}

/* Centre pills */
.panel-centre-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.centre-pill {
    padding: 0.375rem 0.875rem;
    border: 1.5px solid var(--sc-border);
    border-radius: 99px;
    background: transparent;
    font-size: var(--sc-text-sm);
    font-weight: 500;
    color: var(--sc-text-secondary);
    cursor: pointer;
    transition: all var(--sc-transition-fast);
}

.centre-pill:hover {
    border-color: var(--sc-primary-400);
    color: var(--sc-primary-500);
}

.centre-pill.active {
    border-color: var(--sc-primary-500);
    background: var(--sc-primary-50);
    color: var(--sc-primary-700);
}

/* Class list */
.panel-class-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.panel-grade-group {}

.panel-grade-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.375rem 0.5rem;
    background: var(--sc-gray-50, var(--sc-surface-variant));
    border-radius: var(--sc-radius-md);
    margin-bottom: 0.5rem;
    font-size: var(--sc-text-xs);
    font-weight: 600;
    color: var(--sc-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.panel-grade-count {
    background: var(--sc-gray-200);
    color: var(--sc-text-secondary);
    border-radius: 99px;
    padding: 1px 7px;
    font-size: 0.7rem;
}

.panel-class-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    border: 1.5px solid var(--sc-border);
    border-radius: var(--sc-radius-lg);
    cursor: pointer;
    transition: all var(--sc-transition-fast);
    margin-bottom: 0.375rem;
}

.panel-class-item:hover {
    border-color: var(--sc-primary-300);
    background: var(--sc-primary-50);
}

.panel-class-item.checked {
    border-color: var(--sc-primary-500);
    background: var(--sc-primary-50);
}

.panel-class-item input[type="checkbox"] {
    accent-color: var(--sc-primary-500);
    flex-shrink: 0;
    width: 16px;
    height: 16px;
}

.panel-class-details {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.panel-class-name {
    font-size: var(--sc-text-sm);
    font-weight: 500;
    color: var(--sc-text-primary);
}

.panel-class-subject {
    font-size: var(--sc-text-xs);
    color: var(--sc-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Loading + Empty states */
.panel-loading {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1.5rem 0;
    color: var(--sc-text-secondary);
    font-size: var(--sc-text-sm);
}

.panel-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 3rem 1rem;
    text-align: center;
    color: var(--sc-text-secondary);
}

.panel-empty .rzi {
    font-size: 2.5rem !important;
    color: var(--sc-success-400, var(--sc-success-500));
}

.panel-empty p {
    margin: 0;
    font-size: var(--sc-text-sm);
    max-width: 280px;
}

.spinner-md {
    width: 24px;
    height: 24px;
    border: 2.5px solid var(--sc-gray-200);
    border-top-color: var(--sc-primary-500);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@media (max-width: 600px) {
    .side-panel {
        width: 100vw;
    }
}

/* ── Phase Level Side Panel ──────────────────────────────────────── */
.phase-panel-section {
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--sc-border);
}

.phase-panel-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.phase-section-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.625rem;
    margin-bottom: 0.75rem;
    background: var(--sc-gray-50, var(--sc-surface-variant));
    border-radius: var(--sc-radius-md);
    font-size: var(--sc-text-sm);
    font-weight: 600;
    color: var(--sc-text-primary);
}

.phase-section-header .rzi {
    font-size: 1.1rem !important;
    color: var(--sc-primary-500);
}

.phase-subjects-block {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: var(--sc-primary-50);
    border-radius: var(--sc-radius-lg);
    border: 1px solid var(--sc-primary-100);
}

.phase-subjects-label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.625rem;
    font-size: var(--sc-text-xs);
    font-weight: 600;
    color: var(--sc-primary-700);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.phase-subjects-label .rzi {
    font-size: 0.9rem !important;
}

.panel-subject-item {
    background: var(--sc-surface);
}

.panel-subject-item:hover {
    border-color: var(--sc-primary-400);
}

.panel-subject-item.checked {
    border-color: var(--sc-primary-500);
    background: var(--sc-primary-50);
}