:root {
    --primary: #444CE7;
    --primary-dark: #3538CD;
    --primary-light: #EEF4FF;
    --dark: #101828;
    --dark-secondary: #1D2939;
    --text: #475467;
    --text-light: #98A2B3;
    --bg: #F9FAFB;
    --white: #FFFFFF;
    --border: #E4E7EC;
    --success: #12B76A;
    --success-light: #ECFDF3;
    --warning: #F79009;
    --warning-light: #FFFAEB;
    --danger: #F04438;
    --danger-light: #FEF3F2;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--dark);
    font-size: 14px;
    line-height: 1.5;
}

/* SIDEBAR */
.sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: 260px;
    background: var(--dark);
    color: var(--white);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.3s;
}
.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sidebar-header img { max-height: 36px; }
.sidebar-header .brand-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}
.sidebar-nav { flex: 1; padding: 12px 0; overflow-y: auto; }
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}
.sidebar-nav a:hover {
    color: var(--white);
    background: rgba(255,255,255,0.06);
}
.sidebar-nav a.active {
    color: var(--white);
    background: rgba(68,76,231,0.15);
    border-left-color: var(--primary);
}
.sidebar-nav a svg { width: 20px; height: 20px; flex-shrink: 0; }
.sidebar-section {
    padding: 16px 20px 8px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-light);
}
.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.08);
    font-size: 13px;
}
.sidebar-footer a { color: var(--text-light); text-decoration: none; }
.sidebar-footer a:hover { color: var(--white); }

/* EVENT SELECTOR */
.event-selector {
    margin: 12px 16px;
    padding: 10px 12px;
    background: rgba(255,255,255,0.06);
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
}
.event-selector select {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--white);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    outline: none;
}
.event-selector select option { color: var(--dark); }

/* MAIN CONTENT */
.main-content {
    margin-left: 260px;
    min-height: 100vh;
}
.topbar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 16px 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}
.topbar h1 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
}
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.content { padding: 24px 32px; }

/* CARDS */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    transition: box-shadow 0.2s;
}
.stat-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.stat-card .label {
    font-size: 13px;
    color: var(--text);
    font-weight: 500;
    margin-bottom: 8px;
}
.stat-card .value {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.2;
}
.stat-card .value.primary { color: var(--primary); }
.stat-card .value.success { color: var(--success); }
.stat-card .value.warning { color: var(--warning); }
.stat-card .value.danger { color: var(--danger); }
.stat-card .sub {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}

/* TABLE */
.table-container {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}
.table-header {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border);
}
.table-header h2 {
    font-size: 16px;
    font-weight: 600;
}
.table-filters {
    display: flex;
    gap: 8px;
    align-items: center;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}
table {
    width: 100%;
    border-collapse: collapse;
}
thead th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
    white-space: nowrap;
}
tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    color: var(--dark-secondary);
}
tbody tr:hover { background: var(--primary-light); }
tbody tr:last-child td { border-bottom: none; }

/* BADGES */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 16px;
    font-size: 12px;
    font-weight: 600;
}
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: var(--warning); }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-draft { background: #F2F4F7; color: var(--text); }

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
    line-height: 1.4;
}
.btn-primary {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary {
    background: var(--white);
    color: var(--dark);
    border-color: var(--border);
}
.btn-secondary:hover { background: var(--bg); }
.btn-danger {
    background: var(--danger);
    color: var(--white);
}
.btn-sm { padding: 4px 12px; font-size: 13px; }
.btn-icon { padding: 8px; }

/* FORMS */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--dark);
    margin-bottom: 6px;
}
.form-control {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    color: var(--dark);
    background: var(--white);
    transition: border-color 0.15s;
    outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(68,76,231,0.1); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
.form-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
}
.form-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* DETAIL VIEW */
.detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}
.detail-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}
.detail-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
}
.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}
.detail-row:last-child { border-bottom: none; }
.detail-row .label { color: var(--text); font-size: 13px; }
.detail-row .value { font-weight: 600; }

/* SEARCH */
.search-input {
    position: relative;
}
.search-input input {
    padding-left: 36px;
}
.search-input svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    width: 16px; height: 16px;
}

/* PAGINATION */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 16px;
}
.pagination a, .pagination span {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    color: var(--text);
    border: 1px solid var(--border);
}
.pagination a:hover { background: var(--bg); }
.pagination .current {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* LOGIN */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-secondary) 100%);
}
.login-card {
    background: var(--white);
    border-radius: 16px;
    padding: 40px;
    width: 400px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-card .logo { text-align: center; margin-bottom: 32px; }
.login-card .logo h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-top: 12px;
}
.login-card .logo p { color: var(--text); font-size: 14px; }

/* RESPONSIVE */
.sidebar-toggle { display: none; }

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px; height: 40px;
        border-radius: 8px;
        border: 1px solid var(--border);
        background: var(--white);
        cursor: pointer;
    }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .detail-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .content { padding: 16px; }
    .topbar { padding: 12px 16px; }
}

/* EMPTY STATE */
.empty-state {
    text-align: center;
    padding: 48px 20px;
    color: var(--text);
}
.empty-state svg { width: 48px; height: 48px; color: var(--text-light); margin-bottom: 12px; }
.empty-state h3 { font-size: 16px; color: var(--dark); margin-bottom: 8px; }

/* UTILITIES */
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--text-light); }
.text-sm { font-size: 13px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-4 { margin-bottom: 16px; }
.fw-600 { font-weight: 600; }
.money { font-variant-numeric: tabular-nums; }
.clickable-row { cursor: pointer; }
.overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99;
}
.overlay.open { display: block; }