/* ================================================================
   SmartLab Design System v4.0 — Moodle Boost-inspired
   ================================================================ */

:root {
    /* Brand */
    --sl-primary: #1e40af;
    --sl-primary-hover: #1e3a8a;
    --sl-primary-active: #1e3a8a;
    --sl-primary-light: #eff6ff;
    --sl-primary-rgb: 30, 64, 175;

    --sl-accent: #0ea5e9;
    --sl-accent-hover: #0284c7;
    --sl-accent-light: #e0f2fe;

    /* Status */
    --sl-success: #16a34a;
    --sl-success-hover: #15803d;
    --sl-success-light: #dcfce7;
    --sl-success-dark: #166534;

    --sl-warning: #d97706;
    --sl-warning-hover: #b45309;
    --sl-warning-light: #fef3c7;
    --sl-warning-dark: #92400e;

    --sl-danger: #dc2626;
    --sl-danger-hover: #b91c1c;
    --sl-danger-light: #fee2e2;
    --sl-danger-dark: #991b1b;

    --sl-info: #0891b2;
    --sl-info-hover: #0e7490;
    --sl-info-light: #cffafe;
    --sl-info-dark: #155e75;

    /* Neutral / surfaces */
    --sl-bg: #f8fafc;
    --sl-bg-card: #ffffff;
    --sl-bg-alt: #f1f5f9;
    --sl-bg-hover: #f1f5f9;
    --sl-bg-muted: #f8fafc;

    /* Text */
    --sl-text: #0f172a;
    --sl-text-secondary: #475569;
    --sl-text-muted: #64748b;
    --sl-text-faint: #94a3b8;
    --sl-text-light: #ffffff;

    /* Borders */
    --sl-border: #e2e8f0;
    --sl-border-strong: #cbd5e1;
    --sl-border-light: #f1f5f9;

    /* Shadows */
    --sl-shadow-sm: 0 1px 2px 0 rgb(15 23 42 / 0.05);
    --sl-shadow: 0 1px 3px 0 rgb(15 23 42 / 0.08), 0 1px 2px -1px rgb(15 23 42 / 0.05);
    --sl-shadow-md: 0 4px 6px -1px rgb(15 23 42 / 0.08), 0 2px 4px -2px rgb(15 23 42 / 0.05);
    --sl-shadow-lg: 0 10px 15px -3px rgb(15 23 42 / 0.08), 0 4px 6px -4px rgb(15 23 42 / 0.05);
    --sl-shadow-xl: 0 20px 25px -5px rgb(15 23 42 / 0.10), 0 8px 10px -6px rgb(15 23 42 / 0.05);

    /* Radius */
    --sl-radius-sm: 0.375rem;
    --sl-radius: 0.5rem;
    --sl-radius-lg: 0.75rem;
    --sl-radius-xl: 1rem;
    --sl-radius-2xl: 1.5rem;
    --sl-radius-full: 9999px;

    /* Transitions */
    --sl-transition: all 0.18s ease;
    --sl-transition-fast: all 0.12s ease;

    /* Z-index */
    --sl-z-dropdown: 100;
    --sl-z-sticky: 200;
    --sl-z-drawer: 300;
    --sl-z-navbar: 400;
    --sl-z-modal-backdrop: 500;
    --sl-z-modal: 600;
    --sl-z-toast: 700;

    /* Back-compat aliases for pages built against v3 variables */
    --sl-primary-dark: var(--sl-primary-hover);
    --sl-success-hover-rgb: 22 163 74;
    --sl-bg-gray: var(--sl-bg-alt);
    --sl-bg-gray-50: #f8fafc;
    --sl-bg-gray-100: #f1f5f9;
    --sl-bg-gray-200: #e2e8f0;
    --sl-bg-secondary: var(--sl-bg-alt);
    --sl-bg-white: #ffffff;
    --sl-card-bg: var(--sl-bg-card);
    --sl-border-color: var(--sl-border);
    --sl-border-dark: var(--sl-border-strong);
    --sl-light: var(--sl-bg-alt);
    --sl-text-primary: var(--sl-primary);
    --sl-warning-text: var(--sl-warning-dark);
}

/* ================================================================
   RESET / BASE
   ================================================================ */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--sl-bg);
    color: var(--sl-text);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    min-height: 100dvh;
    line-height: 1.55;
    font-size: 0.9375rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body.sl-no-scroll { overflow: hidden; touch-action: none; }

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

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4, h5, h6 {
    color: var(--sl-text);
    font-weight: 600;
    margin: 0 0 0.5rem;
    line-height: 1.3;
}
h1 { font-size: 1.5rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.125rem; }
h4 { font-size: 1rem; }
h5 { font-size: 0.9375rem; }
h6 { font-size: 0.875rem; }

p { margin: 0 0 0.75rem; }

hr {
    border: 0;
    border-top: 1px solid var(--sl-border);
    margin: 1.25rem 0;
}

code, pre {
    font-family: 'Space Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.85em;
}

code {
    background: var(--sl-bg-alt);
    color: var(--sl-text);
    padding: 0.125rem 0.375rem;
    border-radius: var(--sl-radius-sm);
}

pre {
    background: var(--sl-bg-alt);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius);
    padding: 0.875rem 1rem;
    overflow-x: auto;
    line-height: 1.5;
}

/* ================================================================
   BUTTONS
   ================================================================ */
.sl-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.25;
    border: 1px solid transparent;
    border-radius: var(--sl-radius);
    cursor: pointer;
    transition: var(--sl-transition);
    text-decoration: none;
    white-space: nowrap;
    background: transparent;
    color: var(--sl-text);
}
.sl-btn:hover { text-decoration: none; }
.sl-btn:disabled, .sl-btn.disabled { opacity: 0.6; cursor: not-allowed; pointer-events: none; }
.sl-btn:focus-visible { outline: 2px solid var(--sl-primary); outline-offset: 2px; }

.sl-btn-primary {
    background: var(--sl-primary);
    border-color: var(--sl-primary);
    color: #fff;
}
.sl-btn-primary:hover { background: var(--sl-primary-hover); border-color: var(--sl-primary-hover); color: #fff; }

.sl-btn-secondary {
    background: var(--sl-bg-card);
    border-color: var(--sl-border-strong);
    color: var(--sl-text);
}
.sl-btn-secondary:hover { background: var(--sl-bg-alt); border-color: var(--sl-text-muted); color: var(--sl-text); }

.sl-btn-success { background: var(--sl-success); border-color: var(--sl-success); color: #fff; }
.sl-btn-success:hover { background: var(--sl-success-hover); border-color: var(--sl-success-hover); color: #fff; }

.sl-btn-warning { background: var(--sl-warning); border-color: var(--sl-warning); color: #fff; }
.sl-btn-warning:hover { background: var(--sl-warning-hover); border-color: var(--sl-warning-hover); color: #fff; }

.sl-btn-danger { background: var(--sl-danger); border-color: var(--sl-danger); color: #fff; }
.sl-btn-danger:hover { background: var(--sl-danger-hover); border-color: var(--sl-danger-hover); color: #fff; }

.sl-btn-info { background: var(--sl-info); border-color: var(--sl-info); color: #fff; }
.sl-btn-info:hover { background: var(--sl-info-hover); border-color: var(--sl-info-hover); color: #fff; }

.sl-btn-outline-primary { background: transparent; border-color: var(--sl-primary); color: var(--sl-primary); }
.sl-btn-outline-primary:hover { background: var(--sl-primary); color: #fff; }

.sl-btn-outline-secondary { background: transparent; border-color: var(--sl-border-strong); color: var(--sl-text-secondary); }
.sl-btn-outline-secondary:hover { background: var(--sl-bg-alt); color: var(--sl-text); }

.sl-btn-outline-danger { background: transparent; border-color: var(--sl-danger); color: var(--sl-danger); }
.sl-btn-outline-danger:hover { background: var(--sl-danger); color: #fff; }

.sl-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--sl-text-secondary);
}
.sl-btn-ghost:hover { background: var(--sl-bg-alt); color: var(--sl-text); }

.sl-btn-link {
    background: transparent;
    border: 0;
    color: var(--sl-primary);
    padding: 0;
}
.sl-btn-link:hover { color: var(--sl-primary-hover); text-decoration: underline; }

.sl-btn-sm { padding: 0.3125rem 0.625rem; font-size: 0.8125rem; }
.sl-btn-lg { padding: 0.625rem 1.25rem; font-size: 1rem; }
.sl-btn-xs { padding: 0.1875rem 0.5rem; font-size: 0.75rem; }
.sl-btn-block { display: flex; width: 100%; }

.sl-btn-icon {
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    border-radius: var(--sl-radius);
    background: transparent;
    border-color: transparent;
    color: var(--sl-text-secondary);
}
.sl-btn-icon:hover { background: var(--sl-bg-alt); color: var(--sl-text); }
.sl-btn-icon.sl-btn-sm { width: 1.875rem; height: 1.875rem; }

/* ================================================================
   CARDS
   ================================================================ */
.sl-card {
    background: var(--sl-bg-card);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius-lg);
    overflow: hidden;
}
.sl-card-hover { transition: var(--sl-transition); }
.sl-card-hover:hover { transform: translateY(-2px); box-shadow: var(--sl-shadow-md); border-color: var(--sl-border-strong); }

.sl-card-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--sl-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    background: var(--sl-bg-card);
}
.sl-card-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--sl-text);
}

.sl-card-body { padding: 1.25rem; }
.sl-card-body-flush { padding: 0; }
.sl-card-footer {
    padding: 0.875rem 1.25rem;
    border-top: 1px solid var(--sl-border);
    background: var(--sl-bg-muted);
}

/* ================================================================
   BADGES
   ================================================================ */
.sl-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--sl-radius-sm);
    background: var(--sl-bg-alt);
    color: var(--sl-text-secondary);
    border: 1px solid transparent;
    white-space: nowrap;
}
.sl-badge-sm { padding: 0.125rem 0.375rem; font-size: 0.6875rem; }
.sl-badge-lg { padding: 0.375rem 0.625rem; font-size: 0.8125rem; }

.sl-badge-primary { background: var(--sl-primary-light); color: var(--sl-primary); }
.sl-badge-success { background: var(--sl-success-light); color: var(--sl-success-dark); }
.sl-badge-warning { background: var(--sl-warning-light); color: var(--sl-warning-dark); }
.sl-badge-danger { background: var(--sl-danger-light); color: var(--sl-danger-dark); }
.sl-badge-info { background: var(--sl-info-light); color: var(--sl-info-dark); }
.sl-badge-secondary { background: var(--sl-bg-alt); color: var(--sl-text-secondary); }
.sl-badge-accent { background: var(--sl-accent-light); color: var(--sl-accent-hover); }

.sl-badge-dot {
    width: 0.5rem; height: 0.5rem; border-radius: 50%;
    background: currentColor; padding: 0; display: inline-block;
}

/* ================================================================
   ALERTS
   ================================================================ */
.sl-alert {
    display: flex;
    gap: 0.75rem;
    padding: 0.875rem 1rem;
    border-radius: var(--sl-radius);
    border: 1px solid;
    margin-bottom: 1rem;
    background: var(--sl-bg-card);
}
.sl-alert > i.bi, .sl-alert-icon { font-size: 1.125rem; flex-shrink: 0; }
.sl-alert-content { flex: 1; min-width: 0; }
.sl-alert-title { font-weight: 600; margin-bottom: 0.125rem; }
.sl-alert-text { color: var(--sl-text-secondary); font-size: 0.875rem; }

.sl-alert-success { background: var(--sl-success-light); border-color: rgb(22 163 74 / 0.2); color: var(--sl-success-dark); }
.sl-alert-warning { background: var(--sl-warning-light); border-color: rgb(217 119 6 / 0.2); color: var(--sl-warning-dark); }
.sl-alert-danger  { background: var(--sl-danger-light);  border-color: rgb(220 38 38 / 0.2);  color: var(--sl-danger-dark); }
.sl-alert-info    { background: var(--sl-info-light);    border-color: rgb(8 145 178 / 0.2);  color: var(--sl-info-dark); }
.sl-alert-primary { background: var(--sl-primary-light); border-color: rgb(30 64 175 / 0.2);  color: var(--sl-primary); }

/* ================================================================
   FORMS
   ================================================================ */
.sl-form-group { margin-bottom: 1rem; }
.sl-form-label {
    display: block;
    margin-bottom: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--sl-text);
}
.sl-form-label.required::after { content: ' *'; color: var(--sl-danger); }

.sl-form-control, .sl-form-select {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.9375rem;
    font-family: inherit;
    line-height: 1.5;
    color: var(--sl-text);
    background: var(--sl-bg-card);
    border: 1px solid var(--sl-border-strong);
    border-radius: var(--sl-radius);
    transition: var(--sl-transition-fast);
}
.sl-form-control:focus, .sl-form-select:focus {
    outline: 0;
    border-color: var(--sl-primary);
    box-shadow: 0 0 0 3px rgb(var(--sl-primary-rgb) / 0.15);
}
.sl-form-control:disabled, .sl-form-select:disabled { background: var(--sl-bg-alt); color: var(--sl-text-muted); cursor: not-allowed; }
.sl-form-control::placeholder { color: var(--sl-text-faint); }
.sl-form-control.is-invalid, .sl-form-select.is-invalid { border-color: var(--sl-danger); }
.sl-form-control.is-invalid:focus { box-shadow: 0 0 0 3px rgb(220 38 38 / 0.15); }

textarea.sl-form-control { min-height: 6rem; resize: vertical; }

.sl-form-text {
    margin-top: 0.25rem;
    font-size: 0.8125rem;
    color: var(--sl-text-muted);
}
.sl-invalid-feedback {
    margin-top: 0.25rem;
    font-size: 0.8125rem;
    color: var(--sl-danger);
}

.sl-input-group { display: flex; align-items: stretch; width: 100%; }
.sl-input-group .sl-form-control { flex: 1; border-radius: 0; }
.sl-input-group .sl-form-control:first-child { border-top-left-radius: var(--sl-radius); border-bottom-left-radius: var(--sl-radius); }
.sl-input-group .sl-form-control:last-child  { border-top-right-radius: var(--sl-radius); border-bottom-right-radius: var(--sl-radius); }
.sl-input-group-text {
    display: inline-flex; align-items: center;
    padding: 0.5rem 0.75rem;
    background: var(--sl-bg-alt);
    border: 1px solid var(--sl-border-strong);
    color: var(--sl-text-muted);
    font-size: 0.875rem;
}
.sl-input-group-text:first-child { border-right: 0; border-top-left-radius: var(--sl-radius); border-bottom-left-radius: var(--sl-radius); }
.sl-input-group-text:last-child  { border-left: 0;  border-top-right-radius: var(--sl-radius); border-bottom-right-radius: var(--sl-radius); }

.sl-form-check { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.sl-form-check-input { width: 1rem; height: 1rem; accent-color: var(--sl-primary); cursor: pointer; }
.sl-form-check-label { cursor: pointer; user-select: none; }

/* Legacy input-group with leading icon (used by auth pages) */
.sl-input-group { position: relative; }
.sl-input-group-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--sl-text-muted);
    font-size: 1rem;
    pointer-events: none;
    z-index: 1;
}
.sl-form-control.has-icon-left { padding-left: 2.375rem; }

.sl-input-group-append {
    position: absolute;
    right: 0.375rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    z-index: 1;
}
.sl-password-toggle {
    background: transparent;
    border: 0;
    color: var(--sl-text-muted);
    cursor: pointer;
    padding: 0.375rem 0.5rem;
    border-radius: var(--sl-radius-sm);
    font-size: 1rem;
    line-height: 1;
}
.sl-password-toggle:hover { color: var(--sl-text); background: var(--sl-bg-alt); }

/* ================================================================
   TABLES
   ================================================================ */
.sl-table-container {
    background: var(--sl-bg-card);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius-lg);
    overflow: hidden;
}
.sl-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
.sl-table thead th {
    text-align: left;
    padding: 0.75rem 1rem;
    background: var(--sl-bg-muted);
    color: var(--sl-text-secondary);
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    border-bottom: 1px solid var(--sl-border);
    white-space: nowrap;
}
.sl-table tbody td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--sl-border-light);
    color: var(--sl-text);
    vertical-align: middle;
}
.sl-table tbody tr:last-child td { border-bottom: 0; }
.sl-table tbody tr:hover { background: var(--sl-bg-muted); }
.sl-table-striped tbody tr:nth-child(odd) { background: var(--sl-bg-muted); }
.sl-table-compact thead th, .sl-table-compact tbody td { padding: 0.5rem 0.75rem; }

@media (max-width: 768px) {
    .sl-table-responsive { display: block; }
    .sl-table-responsive thead { display: none; }
    .sl-table-responsive tbody, .sl-table-responsive tr, .sl-table-responsive td { display: block; width: 100%; }
    .sl-table-responsive tr {
        background: var(--sl-bg-card);
        border-bottom: 1px solid var(--sl-border);
        padding: 0.75rem 0;
    }
    .sl-table-responsive td {
        padding: 0.375rem 1rem;
        border: 0;
        display: flex;
        justify-content: space-between;
        gap: 0.75rem;
    }
    .sl-table-responsive td::before {
        content: attr(data-label);
        color: var(--sl-text-muted);
        font-weight: 500;
        font-size: 0.8125rem;
        text-transform: uppercase;
        letter-spacing: 0.025em;
    }
}

/* ================================================================
   DROPDOWN
   ================================================================ */
.sl-dropdown { position: relative; display: inline-block; }
.sl-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.375rem);
    right: 0;
    min-width: 220px;
    background: var(--sl-bg-card);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius);
    box-shadow: var(--sl-shadow-lg);
    padding: 0.375rem;
    z-index: var(--sl-z-dropdown);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
}
.sl-dropdown.show .sl-dropdown-menu,
.sl-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.sl-dropdown-menu-left { right: auto; left: 0; }

.sl-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.75rem;
    color: var(--sl-text);
    border-radius: var(--sl-radius-sm);
    font-size: 0.875rem;
    transition: var(--sl-transition-fast);
    cursor: pointer;
    text-decoration: none;
}
.sl-dropdown-item:hover { background: var(--sl-bg-alt); color: var(--sl-text); text-decoration: none; }
.sl-dropdown-item i { color: var(--sl-text-muted); font-size: 1rem; width: 1.125rem; }
.sl-dropdown-item.danger { color: var(--sl-danger); }
.sl-dropdown-item.danger i { color: var(--sl-danger); }
.sl-dropdown-item.danger:hover { background: var(--sl-danger-light); color: var(--sl-danger-dark); }

.sl-dropdown-divider {
    height: 1px;
    background: var(--sl-border);
    margin: 0.375rem 0;
}
.sl-dropdown-header {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--sl-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ================================================================
   MODAL
   ================================================================ */
.sl-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgb(15 23 42 / 0.5);
    z-index: var(--sl-z-modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}
.sl-modal-overlay.show { opacity: 1; visibility: visible; }

.sl-modal {
    background: var(--sl-bg-card);
    border-radius: var(--sl-radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--sl-shadow-xl);
    transform: translateY(8px);
    transition: transform 0.2s ease;
}
.sl-modal-overlay.show .sl-modal { transform: translateY(0); }
.sl-modal-lg { max-width: 720px; }
.sl-modal-xl { max-width: 960px; }
.sl-modal-sm { max-width: 380px; }

.sl-modal-handle { display: none; }

.sl-modal-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--sl-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}
.sl-modal-title { margin: 0; font-size: 1.0625rem; font-weight: 600; }
.sl-modal-close {
    background: transparent;
    border: 0;
    color: var(--sl-text-muted);
    cursor: pointer;
    font-size: 1.25rem;
    padding: 0.25rem;
    border-radius: var(--sl-radius-sm);
    line-height: 1;
}
.sl-modal-close:hover { background: var(--sl-bg-alt); color: var(--sl-text); }

.sl-modal-body { padding: 1.25rem; overflow-y: auto; flex: 1; }
.sl-modal-footer {
    padding: 0.875rem 1.25rem;
    border-top: 1px solid var(--sl-border);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    .sl-modal-overlay { padding: 0; align-items: flex-end; }
    .sl-modal {
        max-height: 92vh;
        border-radius: var(--sl-radius-xl) var(--sl-radius-xl) 0 0;
        transform: translateY(100%);
    }
    .sl-modal-overlay.show .sl-modal { transform: translateY(0); }
    .sl-modal-handle {
        display: block;
        width: 36px; height: 4px;
        background: var(--sl-border-strong);
        border-radius: 2px;
        margin: 0.5rem auto 0;
    }
}

/* ================================================================
   TOAST
   ================================================================ */
.sl-toast-container {
    position: fixed;
    top: 4.5rem;
    right: 1rem;
    z-index: var(--sl-z-toast);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 360px;
    pointer-events: none;
}
.sl-toast {
    background: var(--sl-bg-card);
    border: 1px solid var(--sl-border);
    border-left: 4px solid var(--sl-info);
    border-radius: var(--sl-radius);
    box-shadow: var(--sl-shadow-lg);
    padding: 0.75rem 0.875rem;
    display: flex;
    gap: 0.625rem;
    align-items: flex-start;
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: auto;
}
.sl-toast.success { border-left-color: var(--sl-success); }
.sl-toast.error   { border-left-color: var(--sl-danger); }
.sl-toast.warning { border-left-color: var(--sl-warning); }
.sl-toast.info    { border-left-color: var(--sl-info); }

.sl-toast-icon { font-size: 1.125rem; flex-shrink: 0; margin-top: 0.0625rem; }
.sl-toast.success .sl-toast-icon { color: var(--sl-success); }
.sl-toast.error   .sl-toast-icon { color: var(--sl-danger); }
.sl-toast.warning .sl-toast-icon { color: var(--sl-warning); }
.sl-toast.info    .sl-toast-icon { color: var(--sl-info); }

.sl-toast-content { flex: 1; min-width: 0; }
.sl-toast-title { font-weight: 600; font-size: 0.875rem; }
.sl-toast-message { font-size: 0.8125rem; color: var(--sl-text-secondary); margin-top: 0.125rem; word-break: break-word; }
.sl-toast-close {
    background: transparent; border: 0; cursor: pointer;
    color: var(--sl-text-muted); padding: 0; font-size: 1.125rem; line-height: 1;
}
.sl-toast-close:hover { color: var(--sl-text); }

@media (max-width: 480px) {
    .sl-toast-container { left: 0.75rem; right: 0.75rem; max-width: none; top: 4rem; }
}

/* ================================================================
   SPINNER
   ================================================================ */
.sl-spinner {
    display: inline-block;
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid rgb(var(--sl-primary-rgb) / 0.2);
    border-top-color: var(--sl-primary);
    border-radius: 50%;
    animation: sl-spin 0.7s linear infinite;
    vertical-align: middle;
}
.sl-spinner-sm { width: 1rem; height: 1rem; border-width: 2px; }
.sl-spinner-lg { width: 2rem; height: 2rem; border-width: 4px; }

@keyframes sl-spin { to { transform: rotate(360deg); } }

/* ================================================================
   EMPTY STATE
   ================================================================ */
.sl-empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
}
.sl-empty-state-icon {
    width: 4rem; height: 4rem;
    margin: 0 auto 1rem;
    border-radius: var(--sl-radius-full);
    background: var(--sl-bg-alt);
    color: var(--sl-text-faint);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.75rem;
}
.sl-empty-state-title {
    font-size: 1.0625rem;
    font-weight: 600;
    margin-bottom: 0.375rem;
    color: var(--sl-text);
}
.sl-empty-state-text {
    color: var(--sl-text-muted);
    font-size: 0.875rem;
    max-width: 360px;
    margin: 0 auto 1rem;
}

/* ================================================================
   PROGRESS BAR & RING
   ================================================================ */
.sl-progress {
    height: 0.5rem;
    background: var(--sl-bg-alt);
    border-radius: var(--sl-radius-full);
    overflow: hidden;
    width: 100%;
}
.sl-progress-bar {
    height: 100%;
    background: var(--sl-primary);
    border-radius: var(--sl-radius-full);
    transition: width 0.4s ease;
}
.sl-progress-success .sl-progress-bar { background: var(--sl-success); }
.sl-progress-warning .sl-progress-bar { background: var(--sl-warning); }
.sl-progress-danger  .sl-progress-bar { background: var(--sl-danger); }

/* ----------------------------------------------------------------
   Progress chip — rounded rectangle badge that shows N% / 100%.
   Replaces the older sl-progress-ring SVG; renderCompletionRing()
   in student/course.php + lecturer/course.php now emits this class.
   ---------------------------------------------------------------- */
.sl-progress-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    flex-shrink: 0;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.01em;
    border-radius: 10px;
    border: 1px solid transparent;
    background: var(--sl-bg-alt);
    color: var(--sl-text-muted);
    transition: background 0.2s ease, color 0.2s ease;
    white-space: nowrap;
}
.sl-progress-chip i { font-size: 1em; line-height: 1; }

/* Size variants */
.sl-progress-chip-sm { padding: 0.25rem 0.5rem;   font-size: 0.6875rem; min-width: 44px; }
.sl-progress-chip-md { padding: 0.375rem 0.75rem; font-size: 0.8125rem; min-width: 56px; border-radius: 12px; }
.sl-progress-chip-lg { padding: 0.5rem 1rem;      font-size: 0.9375rem; min-width: 68px; border-radius: 14px; }

/* Tier colors — tinted background + matching text for clear hierarchy. */
.sl-progress-chip-tier-empty {
    background: var(--sl-bg-alt);
    color: var(--sl-text-muted);
    border-color: var(--sl-border);
}
.sl-progress-chip-tier-low {
    background: var(--sl-warning-light);
    color: var(--sl-warning-dark);
    border-color: color-mix(in srgb, var(--sl-warning) 20%, transparent);
}
.sl-progress-chip-tier-mid {
    background: var(--sl-info-light);
    color: var(--sl-info-dark);
    border-color: color-mix(in srgb, var(--sl-info) 20%, transparent);
}
.sl-progress-chip-tier-high {
    background: var(--sl-primary-light);
    color: var(--sl-primary);
    border-color: color-mix(in srgb, var(--sl-primary) 20%, transparent);
}
.sl-progress-chip-tier-done {
    background: var(--sl-success-light);
    color: var(--sl-success-dark);
    border-color: color-mix(in srgb, var(--sl-success) 25%, transparent);
}

/* ================================================================
   UTILITIES — text / spacing / display / flex
   ================================================================ */
/* Bootstrap-style flex/alignment aliases */
.sl-items-start   { align-items: flex-start; }
.sl-items-center  { align-items: center; }
.sl-items-end     { align-items: flex-end; }
.sl-justify-start { justify-content: flex-start; }
.sl-text-start    { text-align: left; }
.sl-text-end      { text-align: right; }

.sl-text-primary   { color: var(--sl-primary) !important; }
.sl-text-secondary { color: var(--sl-text-secondary) !important; }
.sl-text-muted     { color: var(--sl-text-muted) !important; }
.sl-text-success   { color: var(--sl-success) !important; }
.sl-text-warning   { color: var(--sl-warning) !important; }
.sl-text-danger    { color: var(--sl-danger) !important; }
.sl-text-info      { color: var(--sl-info) !important; }
.sl-text-white     { color: #fff !important; }
.sl-text-center    { text-align: center; }
.sl-text-right     { text-align: right; }
.sl-text-left      { text-align: left; }
.sl-text-truncate  { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sl-text-uppercase { text-transform: uppercase; letter-spacing: 0.025em; }
.sl-fw-bold        { font-weight: 700; }
.sl-fw-semibold    { font-weight: 600; }
.sl-fw-medium      { font-weight: 500; }
.sl-fs-sm          { font-size: 0.8125rem; }
.sl-fs-xs          { font-size: 0.75rem; }
.sl-fs-lg          { font-size: 1.0625rem; }

.sl-bg-card { background: var(--sl-bg-card) !important; }
.sl-bg-alt  { background: var(--sl-bg-alt) !important; }
.sl-bg-primary-light { background: var(--sl-primary-light) !important; }
.sl-bg-success-light { background: var(--sl-success-light) !important; }
.sl-bg-warning-light { background: var(--sl-warning-light) !important; }
.sl-bg-danger-light  { background: var(--sl-danger-light)  !important; }

.sl-d-none    { display: none !important; }
.sl-d-block   { display: block !important; }
.sl-d-flex    { display: flex !important; }
.sl-d-inline-flex { display: inline-flex !important; }
.sl-d-grid    { display: grid !important; }

.sl-flex-1 { flex: 1; }
.sl-flex-wrap { flex-wrap: wrap; }
.sl-flex-column { flex-direction: column; }
.sl-align-center { align-items: center; }
.sl-align-start { align-items: flex-start; }
.sl-align-end { align-items: flex-end; }
.sl-justify-center { justify-content: center; }
.sl-justify-between { justify-content: space-between; }
.sl-justify-end { justify-content: flex-end; }

.sl-gap-1 { gap: 0.25rem; } .sl-gap-2 { gap: 0.5rem; } .sl-gap-3 { gap: 0.75rem; }
.sl-gap-4 { gap: 1rem; } .sl-gap-5 { gap: 1.25rem; } .sl-gap-6 { gap: 1.5rem; }

.sl-m-0 { margin: 0 !important; }
.sl-mt-0 { margin-top: 0 !important; } .sl-mt-1 { margin-top: 0.25rem; } .sl-mt-2 { margin-top: 0.5rem; } .sl-mt-3 { margin-top: 0.75rem; } .sl-mt-4 { margin-top: 1rem; } .sl-mt-5 { margin-top: 1.5rem; }
.sl-mb-0 { margin-bottom: 0 !important; } .sl-mb-1 { margin-bottom: 0.25rem; } .sl-mb-2 { margin-bottom: 0.5rem; } .sl-mb-3 { margin-bottom: 0.75rem; } .sl-mb-4 { margin-bottom: 1rem; } .sl-mb-5 { margin-bottom: 1.5rem; } .sl-mb-6 { margin-bottom: 2rem; }
.sl-ml-auto { margin-left: auto; } .sl-mr-auto { margin-right: auto; }

.sl-p-0 { padding: 0 !important; }
.sl-p-1 { padding: 0.25rem; } .sl-p-2 { padding: 0.5rem; } .sl-p-3 { padding: 0.75rem; } .sl-p-4 { padding: 1rem; } .sl-p-5 { padding: 1.25rem; }
.sl-py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; } .sl-py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; } .sl-py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.sl-px-2 { padding-left: 0.5rem; padding-right: 0.5rem; } .sl-px-3 { padding-left: 0.75rem; padding-right: 0.75rem; } .sl-px-4 { padding-left: 1rem; padding-right: 1rem; }

.sl-w-100 { width: 100%; }
.sl-h-100 { height: 100%; }

.sl-rounded     { border-radius: var(--sl-radius); }
.sl-rounded-lg  { border-radius: var(--sl-radius-lg); }
.sl-rounded-full{ border-radius: var(--sl-radius-full); }

.sl-shadow-sm { box-shadow: var(--sl-shadow-sm); }
.sl-shadow    { box-shadow: var(--sl-shadow); }
.sl-shadow-md { box-shadow: var(--sl-shadow-md); }
.sl-shadow-lg { box-shadow: var(--sl-shadow-lg); }

.sl-border    { border: 1px solid var(--sl-border); }
.sl-border-top    { border-top: 1px solid var(--sl-border); }
.sl-border-bottom { border-bottom: 1px solid var(--sl-border); }

.sl-cursor-pointer { cursor: pointer; }

@media (max-width: 768px) {
    .sl-hide-mobile { display: none !important; }
    .sl-desktop-only { display: none !important; }
}
@media (min-width: 769px) {
    .sl-show-mobile { display: none !important; }
    .sl-mobile-only { display: none !important; }
}

/* ================================================================
   GRID HELPERS (Bootstrap-style 12-column)
   ================================================================ */
.sl-row { display: flex; flex-wrap: wrap; gap: 1rem; }
.sl-col { flex: 1; min-width: 0; }
.sl-col-12 { width: 100%; flex: 0 0 100%; }
.sl-col-11 { width: calc(91.6667% - 0.083rem); flex: 0 0 calc(91.6667% - 0.083rem); }
.sl-col-10 { width: calc(83.3333% - 0.167rem); flex: 0 0 calc(83.3333% - 0.167rem); }
.sl-col-9  { width: calc(75% - 0.25rem);  flex: 0 0 calc(75% - 0.25rem); }
.sl-col-8  { width: calc(66.667% - 0.333rem); flex: 0 0 calc(66.667% - 0.333rem); }
.sl-col-7  { width: calc(58.333% - 0.417rem); flex: 0 0 calc(58.333% - 0.417rem); }
.sl-col-6  { width: calc(50% - 0.5rem);   flex: 0 0 calc(50% - 0.5rem); }
.sl-col-5  { width: calc(41.667% - 0.583rem); flex: 0 0 calc(41.667% - 0.583rem); }
.sl-col-4  { width: calc(33.333% - 0.667rem); flex: 0 0 calc(33.333% - 0.667rem); }
.sl-col-3  { width: calc(25% - 0.75rem);  flex: 0 0 calc(25% - 0.75rem); }
.sl-col-2  { width: calc(16.667% - 0.833rem); flex: 0 0 calc(16.667% - 0.833rem); }

/* Responsive column variants */
@media (min-width: 640px) {
    .sl-col-sm-12 { width: 100%; flex: 0 0 100%; }
    .sl-col-sm-6 { width: calc(50% - 0.5rem); flex: 0 0 calc(50% - 0.5rem); }
    .sl-col-sm-4 { width: calc(33.333% - 0.667rem); flex: 0 0 calc(33.333% - 0.667rem); }
    .sl-col-sm-3 { width: calc(25% - 0.75rem); flex: 0 0 calc(25% - 0.75rem); }
}
@media (min-width: 768px) {
    .sl-col-md-12 { width: 100%; flex: 0 0 100%; }
    .sl-col-md-8 { width: calc(66.667% - 0.333rem); flex: 0 0 calc(66.667% - 0.333rem); }
    .sl-col-md-6 { width: calc(50% - 0.5rem); flex: 0 0 calc(50% - 0.5rem); }
    .sl-col-md-5 { width: calc(41.667% - 0.583rem); flex: 0 0 calc(41.667% - 0.583rem); }
    .sl-col-md-4 { width: calc(33.333% - 0.667rem); flex: 0 0 calc(33.333% - 0.667rem); }
    .sl-col-md-3 { width: calc(25% - 0.75rem); flex: 0 0 calc(25% - 0.75rem); }
    .sl-col-md-2 { width: calc(16.667% - 0.833rem); flex: 0 0 calc(16.667% - 0.833rem); }
}
@media (min-width: 1024px) {
    .sl-col-lg-12 { width: 100%; flex: 0 0 100%; }
    .sl-col-lg-8 { width: calc(66.667% - 0.333rem); flex: 0 0 calc(66.667% - 0.333rem); }
    .sl-col-lg-6 { width: calc(50% - 0.5rem); flex: 0 0 calc(50% - 0.5rem); }
    .sl-col-lg-4 { width: calc(33.333% - 0.667rem); flex: 0 0 calc(33.333% - 0.667rem); }
    .sl-col-lg-3 { width: calc(25% - 0.75rem); flex: 0 0 calc(25% - 0.75rem); }
}
@media (min-width: 1280px) {
    .sl-col-xl-4 { width: calc(33.333% - 0.667rem); flex: 0 0 calc(33.333% - 0.667rem); }
    .sl-col-xl-3 { width: calc(25% - 0.75rem); flex: 0 0 calc(25% - 0.75rem); }
}

/* Mobile-first collapse for explicit cols (no responsive prefix) */
@media (max-width: 767px) {
    .sl-col-6, .sl-col-5, .sl-col-4, .sl-col-3, .sl-col-2,
    .sl-col-7, .sl-col-8, .sl-col-9, .sl-col-10, .sl-col-11 {
        width: 100%; flex: 0 0 100%;
    }
}

/* Bootstrap-style row gutter (`g-N`) — alias for gap */
.sl-g-0 { gap: 0; }
.sl-g-1 { gap: 0.25rem; }
.sl-g-2 { gap: 0.5rem; }
.sl-g-3 { gap: 1rem; }
.sl-g-4 { gap: 1.5rem; }
.sl-g-5 { gap: 3rem; }

/* ================================================================
   STAT GRID (dashboards)
   Supports both `.sl-stat-grid` (singular) and `.sl-stats-grid` (plural)
   ================================================================ */
.sl-stat-grid,
.sl-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.sl-stat-card {
    background: var(--sl-bg-card);
    border: 1px solid var(--sl-border);
    border-radius: var(--sl-radius-lg);
    padding: 1.125rem;
    display: flex;
    align-items: center;
    gap: 0.875rem;
    min-width: 0;
}

.sl-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--sl-radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}
.sl-stat-icon.primary { background: var(--sl-primary-light); color: var(--sl-primary); }
.sl-stat-icon.success { background: var(--sl-success-light); color: var(--sl-success-dark); }
.sl-stat-icon.warning { background: var(--sl-warning-light); color: var(--sl-warning-dark); }
.sl-stat-icon.danger  { background: var(--sl-danger-light);  color: var(--sl-danger-dark); }
.sl-stat-icon.info    { background: var(--sl-info-light);    color: var(--sl-info-dark); }
.sl-stat-icon.secondary { background: var(--sl-bg-alt); color: var(--sl-text-secondary); }
.sl-stat-icon.accent  { background: var(--sl-accent-light); color: var(--sl-accent-hover); }

.sl-stat-content { min-width: 0; flex: 1; }
.sl-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--sl-text);
    line-height: 1.15;
    letter-spacing: -0.01em;
}
.sl-stat-label {
    font-size: 0.8125rem;
    color: var(--sl-text-muted);
    margin-top: 0.125rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sl-stat-detail {
    font-size: 0.75rem;
    color: var(--sl-text-faint);
    margin-top: 0.125rem;
}

@media (max-width: 1024px) {
    .sl-stat-grid,
    .sl-stats-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}
@media (max-width: 768px) {
    .sl-stat-grid,
    .sl-stats-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .sl-stat-card { padding: 0.875rem; gap: 0.625rem; }
    .sl-stat-icon { width: 40px; height: 40px; font-size: 1.0625rem; }
    .sl-stat-value { font-size: 1.25rem; }
}
@media (max-width: 480px) {
    .sl-stat-grid.sl-stat-grid-mobile-compact,
    .sl-stats-grid.sl-stats-grid-mobile-compact {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 0.5rem;
    }
    .sl-stat-grid.sl-stat-grid-mobile-compact .sl-stat-card,
    .sl-stats-grid.sl-stats-grid-mobile-compact .sl-stat-card {
        flex-direction: column;
        align-items: flex-start;
        padding: 0.625rem 0.5rem;
        gap: 0.375rem;
    }
    .sl-stat-grid.sl-stat-grid-mobile-compact .sl-stat-icon,
    .sl-stats-grid.sl-stats-grid-mobile-compact .sl-stat-icon {
        width: 28px; height: 28px; font-size: 0.875rem;
        border-radius: var(--sl-radius);
    }
    .sl-stat-grid.sl-stat-grid-mobile-compact .sl-stat-value,
    .sl-stats-grid.sl-stats-grid-mobile-compact .sl-stat-value {
        font-size: 1.0625rem;
    }
    .sl-stat-grid.sl-stat-grid-mobile-compact .sl-stat-label,
    .sl-stats-grid.sl-stats-grid-mobile-compact .sl-stat-label {
        font-size: 0.6875rem;
    }
}

/* ================================================================
   AVATAR
   ================================================================ */
.sl-avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    background: var(--sl-primary-light);
    color: var(--sl-primary);
    border-radius: var(--sl-radius-full);
    font-weight: 600;
    font-size: 0.8125rem;
    overflow: hidden;
    flex-shrink: 0;
}
.sl-avatar img { width: 100%; height: 100%; object-fit: cover; }
.sl-avatar-sm { width: 1.75rem; height: 1.75rem; font-size: 0.6875rem; }
.sl-avatar-lg { width: 3rem;    height: 3rem;    font-size: 1rem; }
.sl-avatar-xl { width: 4rem;    height: 4rem;    font-size: 1.25rem; }

/* ================================================================
   ADDITIONAL VARIANTS (button / badge / form / table)
   ================================================================ */
.sl-btn-outline-warning { background: transparent; border-color: var(--sl-warning); color: var(--sl-warning-dark); }
.sl-btn-outline-warning:hover { background: var(--sl-warning); color: #fff; }
.sl-btn-outline-info    { background: transparent; border-color: var(--sl-info); color: var(--sl-info-dark); }
.sl-btn-outline-info:hover { background: var(--sl-info); color: #fff; }
.sl-btn-outline-success { background: transparent; border-color: var(--sl-success); color: var(--sl-success-dark); }
.sl-btn-outline-success:hover { background: var(--sl-success); color: #fff; }

.sl-badge-dark    { background: var(--sl-text); color: #fff; }
.sl-badge-neutral { background: var(--sl-bg-alt); color: var(--sl-text-secondary); }
.sl-badge-light   { background: var(--sl-bg-alt); color: var(--sl-text); }

.sl-form-control-sm, .sl-form-select-sm {
    padding: 0.3125rem 0.625rem;
    font-size: 0.8125rem;
}

.sl-table-sm thead th, .sl-table-sm tbody td { padding: 0.4375rem 0.625rem; }
.sl-table-hover tbody tr { transition: background 0.12s ease; }
.sl-table-hover tbody tr:hover { background: var(--sl-bg-muted); }

/* ================================================================
   PAGINATION
   ================================================================ */
.sl-pagination {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 0;
}
.sl-pagination-item {
    min-width: 2rem;
    height: 2rem;
    padding: 0 0.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--sl-bg-card);
    border: 1px solid var(--sl-border);
    color: var(--sl-text-secondary);
    border-radius: var(--sl-radius);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: var(--sl-transition-fast);
}
.sl-pagination-item:hover:not(.disabled):not(.active) {
    background: var(--sl-bg-alt);
    color: var(--sl-text);
    border-color: var(--sl-border-strong);
}
.sl-pagination-item.active {
    background: var(--sl-primary);
    border-color: var(--sl-primary);
    color: #fff;
}
.sl-pagination-item.disabled {
    opacity: 0.45;
    cursor: not-allowed;
    pointer-events: none;
}

/* ================================================================
   LOADING / SKELETON / EMPTY VARIANTS
   ================================================================ */
.sl-loading-state {
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--sl-text-muted);
}
.sl-loading-state .sl-spinner { margin: 0 auto 1rem; }

.sl-empty-filter-state {
    padding: 2rem 1.5rem;
    text-align: center;
    color: var(--sl-text-muted);
    background: var(--sl-bg-muted);
    border: 1px dashed var(--sl-border-strong);
    border-radius: var(--sl-radius);
}

/* ================================================================
   AVATAR SIZES (aliases)
   ================================================================ */
.sl-user-avatar    { width: 2.25rem; height: 2.25rem; border-radius: var(--sl-radius-full); display: inline-flex; align-items: center; justify-content: center; background: var(--sl-primary-light); color: var(--sl-primary); font-weight: 600; font-size: 0.8125rem; overflow: hidden; flex-shrink: 0; }
.sl-user-avatar img { width: 100%; height: 100%; object-fit: cover; }
.sl-user-avatar-sm { width: 1.75rem; height: 1.75rem; font-size: 0.6875rem; }
.sl-user-avatar-lg { width: 3rem;    height: 3rem;    font-size: 1rem; }
.sl-user-avatar-xl { width: 4rem;    height: 4rem;    font-size: 1.25rem; }

/* ================================================================
   CHECKBOX (custom styled)
   ================================================================ */
.sl-checkbox {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
}
.sl-checkbox input[type="checkbox"] {
    width: 1rem; height: 1rem;
    accent-color: var(--sl-primary);
    cursor: pointer;
}

/* ================================================================
   EXTRA SPACING UTILITIES
   ================================================================ */
.sl-mt-6 { margin-top: 2rem; }
.sl-mb-7 { margin-bottom: 2.5rem; }
.sl-m-3 { margin: 0.75rem; }
.sl-m-4 { margin: 1rem; }
.sl-pt-1 { padding-top: 0.25rem; }
.sl-pt-2 { padding-top: 0.5rem; }
.sl-pt-3 { padding-top: 0.75rem; }
.sl-pt-4 { padding-top: 1rem; }
.sl-pb-1 { padding-bottom: 0.25rem; }
.sl-pb-2 { padding-bottom: 0.5rem; }
.sl-pb-3 { padding-bottom: 0.75rem; }
.sl-pb-4 { padding-bottom: 1rem; }

/* ================================================================
   PRINT
   ================================================================ */
@media print {
    .sl-navbar, .sl-drawer, .sl-drawer-overlay, .sl-footer,
    .sl-no-print { display: none !important; }
    .sl-content { margin: 0 !important; padding: 0 !important; max-width: 100% !important; }
    body { background: #fff; }
}