/* ═══════════════════════════════════════════════════════════
   ClubCallup Design System — Bodio Academy
   Dark theme, mobile-first, premium feel
   ═══════════════════════════════════════════════════════════ */

/* ─── CSS Custom Properties ──────────────────────────────── */
:root {
    /* Colors */
    --bg-primary:     #0f1117;
    --bg-secondary:   #1a1d29;
    --bg-card:        #1e2233;
    --bg-input:       #252a3a;
    --bg-hover:       #2a3045;
    
    --text-primary:   #e8eaf0;
    --text-secondary: #8b8fa8;
    --text-muted:     #5a5f78;
    
    --accent:         #3b82f6;
    --accent-hover:   #2563eb;
    --accent-glow:    rgba(59, 130, 246, 0.15);
    
    --success:        #10b981;
    --success-bg:     rgba(16, 185, 129, 0.12);
    --danger:         #ef4444;
    --danger-bg:      rgba(239, 68, 68, 0.12);
    --warning:        #f59e0b;
    --warning-bg:     rgba(245, 158, 11, 0.12);
    --pending:        #6b7280;
    --pending-bg:     rgba(107, 114, 128, 0.12);
    
    --border:         #2a2d3a;
    --border-light:   #353849;
    
    /* Typography */
    --font-sans:      'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono:      'JetBrains Mono', 'Fira Code', monospace;
    
    /* Sizes */
    --radius-sm:  6px;
    --radius-md:  10px;
    --radius-lg:  14px;
    --radius-xl:  20px;
    
    /* Shadows */
    --shadow-sm:  0 1px 3px rgba(0,0,0,0.3);
    --shadow-md:  0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg:  0 8px 30px rgba(0,0,0,0.5);

    /* Transitions */
    --transition: 0.2s ease;
}

/* ─── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-hover); }
img { max-width: 100%; display: block; }
button, input, select, textarea {
    font-family: inherit; font-size: inherit; color: inherit;
}

/* ─── Layout ─────────────────────────────────────────────── */
.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sidebar-logo span {
    color: var(--accent);
}

.sidebar-nav {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
}

.sidebar-section {
    margin-bottom: 8px;
}

.sidebar-section-title {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-muted);
    padding: 8px 12px 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
    text-decoration: none;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--accent-glow);
    color: var(--accent);
}

.nav-item .nav-icon {
    font-size: 1.15rem;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-footer a {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 24px 32px;
    min-height: 100vh;
}

/* Mobile sidebar */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 99;
}

.mobile-header {
    display: none;
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 12px 16px;
    align-items: center;
    justify-content: space-between;
}

.hamburger {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px;
}

.sidebar-close {
    display: none;
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.3rem;
    cursor: pointer;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .sidebar-close {
        display: block;
    }
    .sidebar-overlay.open {
        display: block;
    }
    .mobile-header {
        display: flex;
    }
    .main-content {
        margin-left: 0;
        padding: 16px;
    }
}

/* ─── Page Header ────────────────────────────────────────── */
.page-header {
    margin-bottom: 28px;
}

.page-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.page-header .subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 4px;
}

.page-actions {
    display: flex;
    gap: 10px;
    margin-top: 16px;
    flex-wrap: wrap;
}

/* ─── Cards ──────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}

.card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-sm);
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h2, .card-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1;
    white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

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

.btn-success {
    background: var(--success);
    color: #fff;
}
.btn-success:hover { opacity: 0.9; color: #fff; }

.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover { opacity: 0.9; color: #fff; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
}
.btn-outline:hover { 
    background: var(--bg-hover); 
    color: var(--text-primary); 
    border-color: var(--text-muted);
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    padding: 8px 12px;
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-hover); }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-xl { padding: 18px 36px; font-size: 1.15rem; border-radius: var(--radius-lg); }
.btn-block { width: 100%; }
.btn-icon { padding: 8px; font-size: 1.1rem; }

/* ─── Forms ──────────────────────────────────────────────── */
.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all var(--transition);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

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

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 10px center;
    background-repeat: no-repeat;
    background-size: 20px;
    padding-right: 36px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 480px) {
    .form-row { grid-template-columns: 1fr; }
}

.form-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.form-error {
    font-size: 0.78rem;
    color: var(--danger);
    margin-top: 4px;
}

/* Checkbox / Toggle */
.checkbox-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 400px;
    overflow-y: auto;
    padding: 4px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition);
}

.checkbox-item:hover { background: var(--bg-hover); }

.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

.checkbox-item label {
    cursor: pointer;
    font-size: 0.9rem;
    flex: 1;
}

/* Toggle switch */
.toggle {
    position: relative;
    width: 48px;
    height: 26px;
    cursor: pointer;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 26px;
    transition: all var(--transition);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 2px;
    bottom: 2px;
    background: var(--text-muted);
    border-radius: 50%;
    transition: all var(--transition);
}

.toggle input:checked + .toggle-slider {
    background: var(--success);
    border-color: var(--success);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(22px);
    background: #fff;
}

/* ─── Status Badges ──────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.badge-yes, .badge-success    { background: var(--success-bg); color: var(--success); }
.badge-no, .badge-danger      { background: var(--danger-bg); color: var(--danger); }
.badge-pending, .badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-neutral                 { background: var(--pending-bg); color: var(--pending); }

.status-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.status-dot-yes     { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot-no      { background: var(--danger); box-shadow: 0 0 6px var(--danger); }
.status-dot-pending { background: var(--pending); }

/* ─── Tables ─────────────────────────────────────────────── */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

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

th {
    text-align: left;
    padding: 12px 16px;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

td {
    padding: 12px 16px;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-hover); }

/* ─── Stats Grid ─────────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value.text-success { color: var(--success); }
.stat-value.text-danger  { color: var(--danger); }
.stat-value.text-warning { color: var(--warning); }
.stat-value.text-accent  { color: var(--accent); }

/* ─── Alerts / Flash Messages ────────────────────────────── */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success { background: var(--success-bg); border: 1px solid rgba(16,185,129,0.3); color: var(--success); }
.alert-error   { background: var(--danger-bg); border: 1px solid rgba(239,68,68,0.3); color: var(--danger); }
.alert-warning { background: var(--warning-bg); border: 1px solid rgba(245,158,11,0.3); color: var(--warning); }
.alert-info    { background: var(--accent-glow); border: 1px solid rgba(59,130,246,0.3); color: var(--accent); }


/*  Match Card ───────────────────────────────────── */
.match-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--bg-hover);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 12px;
    text-decoration: none;
    color: inherit;
    transition: border-color 0.2s ease, transform 0.15s ease;
    cursor: pointer;
}
.match-card:hover {
    border-color: var(--accent);
    transform: translateY(-1px);
    color: inherit;
}
.match-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}
.match-card-header .match-team {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
}
.match-card-header .match-date {
    font-size: 0.78rem;
    color: var(--text-muted);
    white-space: nowrap;
}
.match-card-body {
    margin-bottom: 10px;
}
.match-card-body strong {
    display: block;
    font-size: 1.05rem;
    margin-bottom: 2px;
}
.match-card-body .text-muted {
    display: block;
    font-size: 0.82rem;
}
.match-card-footer {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}
.match-card-footer .badge {
    font-size: 0.72rem;
}
@media (max-width: 600px) {
    .match-card { padding: 14px; }
    .match-card-header { flex-direction: column; align-items: flex-start; gap: 2px; }
    .match-card-body strong { font-size: 1rem; }
}

/* ─── Player / Attendance Grid ───────────────────────────── */
.attendance-grid {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.attendance-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.attendance-row:hover {
    background: var(--bg-hover);
}

.attendance-row .player-name {
    font-weight: 500;
    font-size: 0.95rem;
}

.attendance-row .player-meta {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ─── Response Page (Parent-Facing) ──────────────────────── */
.response-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--bg-primary);
}

.response-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.response-card-header {
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    padding: 28px 24px;
    text-align: center;
}

.response-card-header .club-name {
    font-size: 0.85rem;
    opacity: 0.85;
    margin-bottom: 4px;
}

.response-card-header h1 {
    font-size: 1.3rem;
    font-weight: 700;
}

.response-card-body {
    padding: 24px;
}

.response-detail {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.response-detail:last-child { border-bottom: none; }

.response-detail .icon {
    font-size: 1.2rem;
    flex-shrink: 0;
    width: 28px;
    text-align: center;
}

.response-detail .info {
    flex: 1;
}

.response-detail .info .label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.response-detail .info .value {
    font-weight: 600;
    font-size: 0.95rem;
}

.response-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 24px;
    padding-top: 0;
}

.response-btn {
    padding: 18px;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.response-btn .emoji { font-size: 2rem; }

.response-btn-yes {
    background: var(--success-bg);
    color: var(--success);
    border-color: rgba(16,185,129,0.3);
}
.response-btn-yes:hover, .response-btn-yes.selected {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
    transform: scale(1.03);
}

.response-btn-no {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: rgba(239,68,68,0.3);
}
.response-btn-no:hover, .response-btn-no.selected {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
    transform: scale(1.03);
}

.response-confirmation {
    text-align: center;
    padding: 32px 24px;
}

.response-confirmation .checkmark {
    font-size: 3rem;
    margin-bottom: 12px;
}

/* ─── Login Page ─────────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: var(--bg-primary);
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    box-shadow: var(--shadow-lg);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header .logo-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.login-header h1 {
    font-size: 1.3rem;
    font-weight: 700;
}

.login-header .subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 4px;
}

/* ─── WhatsApp Message Preview ───────────────────────────── */
.whatsapp-preview {
    background: #0b141a;
    border-radius: var(--radius-lg);
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 0.88rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
    color: #e9edef;
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid #1f2c34;
}

.copy-btn-wrapper {
    display: flex;
    gap: 8px;
    margin-top: 12px;
}

/* ─── Empty State ────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p { font-size: 0.9rem; max-width: 320px; margin: 0 auto 20px; }

/* ─── Modal ──────────────────────────────────────────────── */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.7);
    z-index: 200;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

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

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 { font-size: 1.1rem; }

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
}

.modal-body { padding: 24px; }
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ─── Utilities ──────────────────────────────────────────── */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-muted  { color: var(--text-secondary); }
.text-small  { font-size: 0.8rem; }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.hidden { display: none !important; }

/* ─── Animations ─────────────────────────────────────────── */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.fade-in { animation: fadeIn 0.3s ease; }
.pulse   { animation: pulse 1.5s infinite; }

/* Loading spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/*  Attendance Toggle  */
.attendance-toggle {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 2px solid var(--bg-hover);
    background: var(--bg-input);
    color: var(--text-muted);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.attendance-toggle:hover {
    border-color: var(--accent);
    background: var(--accent-glow);
}
.attendance-toggle.present {
    background: var(--success);
    border-color: var(--success);
    color: #fff;
    font-weight: 700;
}
.attendance-toggle.absent {
    background: var(--bg-input);
    border-color: var(--bg-hover);
    color: var(--text-muted);
}
.attendance-table {
    width: 100%;
    border-collapse: collapse;
}
.attendance-table th,
.attendance-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--bg-hover);
}
.attendance-table thead th {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
}


/*  Checkbox Grid  */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 8px;
    padding: 8px 0;
}
.checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
}
.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}
.checkbox-item label {
    cursor: pointer;
    font-size: 0.9rem;
}