/* ========================================
   SIPACA-SLB Design System
   ======================================== */

/* --- CSS Variables (Design Tokens) --- */
:root {
    --color-primary: #4f46e5;
    --color-primary-hover: #4338ca;
    --color-primary-light: #e0e7ff;
    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-info: #3b82f6;

    --color-bg: #f1f5f9;
    --color-surface: #ffffff;
    --color-border: #e2e8f0;
    --color-border-focus: #818cf8;

    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

    --sidebar-width: 240px;
    --topbar-height: 60px;
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

/* --- Top Bar --- */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--topbar-height);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.topbar__brand {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.topbar__user {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.topbar__avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
}

/* --- Sidebar --- */
.sidebar {
    position: fixed;
    top: var(--topbar-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--color-surface);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 90;
    overflow-y: auto;
}

.sidebar__nav {
    flex: 1;
    padding: 1rem 0;
    list-style: none;
}

.sidebar__link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
}

.sidebar__link:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.sidebar__link--active {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    font-weight: 600;
}

.sidebar__link svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar__footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border);
}

.sidebar__logout {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.625rem 0.75rem;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.sidebar__logout:hover {
    background: #fef2f2;
    border-color: var(--color-danger);
}

.sidebar__logout svg {
    width: 18px;
    height: 18px;
}

/* --- Main Content --- */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--topbar-height);
    padding: 2rem;
    min-height: calc(100vh - var(--topbar-height));
}

/* --- Auth Layout --- */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1.5rem;
}

.auth-card {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}

.auth-card__title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--color-text);
}

.auth-card__footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* --- Page Header --- */
.page-header {
    margin-bottom: 1.5rem;
}

.page-header__title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text);
}

.page-header__subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-top: 0.25rem;
}

/* --- Cards --- */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card__body {
    padding: 1.5rem;
}

/* --- Stat Card --- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

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

.stat-card__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.stat-card__value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text);
}

.stat-card__icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.stat-card__icon--primary {
    background: var(--color-primary-light);
    color: var(--color-primary);
}

.stat-card__icon--success {
    background: #d1fae5;
    color: var(--color-success);
}

.stat-card__icon--warning {
    background: #fef3c7;
    color: var(--color-warning);
}

/* --- Form Elements --- */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.375rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-size: var(--font-size-sm);
    font-family: inherit;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--color-text-muted);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.5rem;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    font-family: inherit;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn--primary {
    background: var(--color-primary);
    color: #ffffff;
}

.btn--primary:hover {
    background: var(--color-primary-hover);
    color: #ffffff;
}

.btn--secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn--secondary:hover {
    background: var(--color-bg);
}

.btn--danger {
    background: #fef2f2;
    color: var(--color-danger);
    border-color: #fecaca;
}

.btn--danger:hover {
    background: var(--color-danger);
    color: #ffffff;
}

.btn--ghost {
    background: transparent;
    color: var(--color-text-secondary);
    padding: 0.5rem;
}

.btn--ghost:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.btn--block {
    width: 100%;
}

/* --- Action Bar --- */
.action-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.action-bar__search {
    flex: 1;
    min-width: 200px;
    position: relative;
}

.action-bar__search .form-input {
    padding-left: 2.5rem;
}

.action-bar__search-icon {
    position: absolute;
    left: 0.875rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

.action-bar__search-icon svg {
    width: 18px;
    height: 18px;
}

/* --- Table --- */
.table-wrapper {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    background: var(--color-bg);
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
}

.table td {
    padding: 0.875rem 1rem;
    font-size: var(--font-size-sm);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
}

.table tbody tr {
    transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
    background: #f8fafc;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.table__actions {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

/* --- Tabs --- */
.tabs {
    display: flex;
    border-bottom: 2px solid var(--color-border);
    margin-bottom: 1.5rem;
}

.tabs__item {
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.tabs__item:hover {
    color: var(--color-text);
}

.tabs__item--active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-content {
    display: none;
}

.tab-content--active {
    display: block;
    animation: fadeIn 0.2s ease;
}

/* --- Fieldset (Section Group) --- */
.fieldset {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.fieldset__legend {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    padding: 0 0.5rem;
}

/* --- Info Box (Hasil Klasifikasi) --- */
.info-box {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
}

.info-box__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.info-box__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.info-box__item {
    display: flex;
    gap: 0.375rem;
}

.info-box__label {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
}

.info-box__value {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.result-box {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.result-box__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 1rem;
}

.result-box__content {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    line-height: 1.75;
}

/* --- Form Penilaian Top Action --- */
.form-top-action {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.form-top-action__select {
    flex: 1;
    min-width: 200px;
}

/* --- Subject Section (Form Penilaian) --- */
.subject-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.25rem;
}

.subject-section__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 1rem;
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
    padding: 1.5rem;
}

.modal-overlay--active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-surface);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg), 0 25px 50px -12px rgba(0, 0, 0, 0.15);
    width: 100%;
    max-height: calc(100vh - 3rem);
    display: flex;
    flex-direction: column;
    transform: translateY(16px) scale(0.98);
    transition: transform var(--transition-base);
    overflow: hidden;
}

.modal-overlay--active .modal {
    transform: translateY(0) scale(1);
}

.modal--sm { max-width: 400px; }
.modal--md { max-width: 520px; }
.modal--lg { max-width: 680px; }

.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.modal__title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text);
}

.modal__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.modal__close:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.modal__body {
    padding: 1.5rem;
    overflow-y: auto;
}

.modal__footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
}

/* --- Alert / Confirmation Text --- */
.confirm-text {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.confirm-text strong {
    color: var(--color-text);
}

.confirm-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.confirm-icon--danger {
    background: #fef2f2;
    color: var(--color-danger);
}

/* --- Utilities --- */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }

/* --- Toast Notification --- */
.toast-container {
    position: fixed;
    top: calc(var(--topbar-height) + 1rem);
    right: 1.5rem;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    min-width: 320px;
    max-width: 420px;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    pointer-events: auto;
    animation: toastSlideIn 0.35s cubic-bezier(0.21, 1.02, 0.73, 1) forwards;
    overflow: hidden;
    position: relative;
}

.toast--removing {
    animation: toastSlideOut 0.25s ease forwards;
}

.toast__icon {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    margin-top: 1px;
}

.toast__content {
    flex: 1;
    min-width: 0;
}

.toast__title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.125rem;
}

.toast__message {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.toast__close {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.toast__close:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.toast__progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    animation: toastProgress linear forwards;
}

.toast--success .toast__icon { color: var(--color-success); }
.toast--success .toast__progress { background: var(--color-success); }

.toast--error .toast__icon { color: var(--color-danger); }
.toast--error .toast__progress { background: var(--color-danger); }

.toast--warning .toast__icon { color: var(--color-warning); }
.toast--warning .toast__progress { background: var(--color-warning); }

.toast--info .toast__icon { color: var(--color-info); }
.toast--info .toast__progress { background: var(--color-info); }

@keyframes toastSlideIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastSlideOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(100%); }
}

@keyframes toastProgress {
    from { width: 100%; }
    to { width: 0%; }
}

/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform var(--transition-base);
    }

    .sidebar--open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .stat-grid {
        grid-template-columns: 1fr;
    }

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

    .action-bar {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ========================================
   Student Search Combobox Component
   ======================================== */
.student-search {
    position: relative;
    width: 100%;
}

.student-search__input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.student-search__icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
    transition: color var(--transition-fast);
    flex-shrink: 0;
}

.student-search__input {
    width: 100%;
    padding: 0.5rem 2.5rem 0.5rem 2.5rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    color: var(--color-text);
    background: var(--color-surface);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    cursor: text;
}

.student-search__input:focus {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

.student-search__input::placeholder {
    color: var(--color-text-muted);
}

.student-search__clear {
    position: absolute;
    right: 0.625rem;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-border);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: background var(--transition-fast), color var(--transition-fast);
    opacity: 0;
    pointer-events: none;
}

.student-search__clear.visible {
    opacity: 1;
    pointer-events: auto;
}

.student-search__clear:hover {
    background: var(--color-text-muted);
    color: white;
}

/* Dropdown */
.student-search__dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 50;
    max-height: 280px;
    overflow-y: auto;
    display: none;
    animation: dropdown-in 150ms ease;
    scrollbar-width: thin;
    scrollbar-color: var(--color-border) transparent;
}

.student-search__dropdown.open {
    display: block;
}

@keyframes dropdown-in {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.student-search__option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.875rem;
    cursor: pointer;
    border-bottom: 1px solid #f8fafc;
    transition: background var(--transition-fast);
}

.student-search__option:last-child { border-bottom: none; }

.student-search__option:hover,
.student-search__option.active {
    background: var(--color-primary-light);
}

.student-search__option.active {
    outline: none;
}

.student-search__avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), #818cf8);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.student-search__option-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.2;
}

.student-search__option-meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: 1px;
}

.student-search__empty {
    padding: 1rem 0.875rem;
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.student-search__loading {
    padding: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.student-search__spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

/* Highlight match text */
.student-search__highlight {
    background: #fde68a;
    border-radius: 2px;
    padding: 0 1px;
    font-weight: 700;
    color: #92400e;
}

/* Selected pill shown below input */
.student-search__selected-pill {
    display: none;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
    padding: 0.375rem 0.75rem;
    background: var(--color-primary-light);
    border: 1px solid #c7d2fe;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: 500;
}

.student-search__selected-pill.visible {
    display: flex;
}

.student-search__selected-pill svg {
    color: var(--color-primary);
}

/* --- Inline Validation Styles --- */
.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
    border-color: var(--color-danger) !important;
}

.form-input.is-invalid:focus,
.form-select.is-invalid:focus,
.form-textarea.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15) !important;
}