:root {
    --bg-main: #f8f9fa;
    --text-main: #212529;
    --text-muted: #6c757d;
    --card-bg: #ffffff;
    --border-color: #e9ecef;
    --primary-color: #0d6efd;
    --primary-hover: #0b5ed7;
    --table-header-bg: #e9ecef;
    --table-row-hover: #f1f3f5;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] {
    --bg-main: #121212;
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
    --card-bg: #1e1e1e;
    --border-color: #2c2c2c;
    --primary-color: #3d8bfd;
    --primary-hover: #0d6efd;
    --table-header-bg: #282828;
    --table-row-hover: #222222;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.6);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

[data-theme="light"] body {
    background-color: rgba(248, 249, 250, 0.88);
    background-blend-mode: overlay;
}

[data-theme="dark"] body {
    background-color: rgba(18, 18, 18, 0.88);
    background-blend-mode: overlay;
}

body.bg-off {
    background-image: none !important;
}

[data-theme="dark"] body.bg-off {
    background-color: #121212 !important;
}

[data-theme="light"] body.bg-off {
    background-color: #f8f9fa !important;
}

.spa-view {
    display: none !important;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.spa-view.active {
    display: block !important;
    opacity: 1;
    transform: translateY(0);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

main.container {
    flex: 1;
}

.navbar {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    margin-bottom: 30px;
    box-shadow: var(--shadow-sm);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.custom-dropdown {
    position: relative;
    display: inline-block;
    user-select: none;
}

.custom-dropdown-btn {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-main);
    color: var(--text-main);
    font-size: 0.88rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.custom-dropdown-btn:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.custom-dropdown-arrow {
    font-size: 0.7rem;
    transition: transform 0.2s ease;
    color: var(--text-muted);
}

.custom-dropdown.open .custom-dropdown-arrow {
    transform: rotate(180deg);
}

.custom-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    min-width: 210px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: var(--shadow-md);
    padding: 6px;
    display: none;
    flex-direction: column;
    gap: 2px;
    z-index: 1000;
}

.custom-dropdown.open .custom-dropdown-menu {
    display: flex;
}

.custom-dropdown-item {
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    color: var(--text-main);
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.custom-dropdown-item:hover {
    background-color: var(--table-row-hover);
    color: var(--primary-color);
}

.custom-dropdown-item.selected {
    font-weight: 600;
    background-color: var(--primary-color);
    color: #ffffff;
}

.custom-dropdown-header {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 6px 12px 2px 12px;
    letter-spacing: 0.5px;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    line-height: 1;
}

.hero {
    margin-bottom: 30px;
}

.hero h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.hero p {
    color: var(--text-muted);
}

.page-switch-container {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.switch-btn {
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    background-color: var(--card-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    transition: all 0.2s ease-in-out;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.switch-btn:hover {
    background-color: var(--border-color);
}

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

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.filter-btn {
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-main);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s ease;
}

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

.agenda-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.agenda-card {
    display: flex;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s ease, opacity 0.25s ease, box-shadow 0.2s ease;
}

.agenda-card.hidden {
    display: none !important;
}

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

.card-date {
    background-color: var(--primary-color);
    color: #ffffff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    min-width: 90px;
    text-align: center;
}

.card-date .day {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.1;
}

.card-date .day .date-sep {
    font-size: 0.65rem;
    font-weight: normal;
    text-transform: lowercase;
    opacity: 0.85;
    margin: 2px 0;
}

.card-date .month {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-top: 5px;
}

.card-content {
    padding: 20px;
    flex-grow: 1;
}

.badges {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.badge {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.card-mededeling {
    display: inline-block;
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-transform: uppercase;
}

[data-theme="dark"] .card-mededeling {
    background-color: #383214;
    color: #ffda6a;
    border-color: #544b1e;
}

.card-bericht {
    display: inline-block;
    background-color: #f8d7da;
    color: #842029;
    border: 1px solid #f5c2c7;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-transform: uppercase;
}

[data-theme="dark"] .card-bericht {
    background-color: #441318;
    color: #ea868f;
    border-color: #842029;
}

.agenda-card h2 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.location {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.description {
    font-size: 0.95rem;
    color: var(--text-main);
    margin-bottom: 15px;
}

.btn, .btn-secondary {
    display: inline-block;
    padding: 8px 16px;
    background-color: var(--primary-color);
    color: #ffffff;
    text-decoration: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color 0.2s ease;
}

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

.event-detail-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow-md);
    margin-bottom: 40px;
}

.banner-frame {
    width: 100%;
    max-height: 400px;
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 20px;
}

.event-banner {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.event-detail-card h1 {
    font-size: 2.2rem;
    margin-top: 0;
    margin-bottom: 15px;
}

.meta-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-color: var(--bg-main);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 25px;
    border: 1px solid var(--border-color);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.meta-divider {
    color: var(--text-muted);
}

.event-body h2 {
    font-size: 1.4rem;
    margin: 25px 0 10px 0;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 5px;
}

.event-body p {
    margin-bottom: 15px;
}

.table-responsive {
    overflow-x: auto;
    margin-bottom: 20px;
}

.timetable {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

.timetable th, .timetable td {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    text-align: left;
    font-size: 0.9rem;
}

.timetable th {
    background-color: var(--table-header-bg);
    font-weight: 600;
}

.timetable tr:hover {
    background-color: var(--table-row-hover);
}

.countdown-container {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 25px;
    text-align: center;
}

.countdown-timer {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.countdown-box {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.countdown-box .number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.countdown-box .label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.event-navigation {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.nav-card {
    display: flex;
    flex-direction: column;
    padding: 12px 16px;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-main);
    max-width: 48%;
    transition: all 0.2s ease;
}

.nav-card:hover {
    border-color: var(--primary-color);
}

.nav-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.nav-title {
    font-weight: 600;
    font-size: 0.9rem;
}

.action-box {
    margin-top: 20px;
}

.event-id-footer {
    margin-top: 20px;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: right;
}

.footer {
    border-top: 1px solid var(--border-color);
    padding: 20px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: auto;
}

@media (max-width: 600px) {
    .agenda-card {
        flex-direction: column;
    }
    
    .card-date {
        flex-direction: row;
        gap: 10px;
        padding: 10px;
        min-width: auto;
    }
    
    .card-date .day {
        flex-direction: row;
        font-size: 1.2rem;
    }

    .card-date .month {
        margin-top: 0;
    }

    .event-navigation {
        flex-direction: column;
    }

    .nav-card {
        max-width: 100%;
    }
}