:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --background: #0f172a;
    --sidebar: rgba(30, 41, 59, 0.7);
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #10b981;
    --danger: #ef4444;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    background: radial-gradient(circle at top right, #1e1b4b, #0f172a);
    color: var(--text);
    height: 100vh;
    overflow: hidden;
}

.glass-container {
    display: flex;
    height: 100vh;
    padding: 20px;
    gap: 20px;
    backdrop-filter: blur(10px);
}

/* Sidebar */
.sidebar {
    width: 300px;
    background: var(--sidebar);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 30px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

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

.logo p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 5px;
}

.filter-section h3 {
    font-size: 0.9rem;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.year-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.year-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 8px;
    color: var(--text);
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.3s;
}

.year-btn.active {
    background: var(--primary);
    border-color: var(--primary);
}

/* Kraj Select */
.kraj-select {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s;
}

.kraj-select:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary);
}

.kraj-select option {
    background: var(--background);
    color: var(--text);
}

/* Okres Checkboxes */
.okres-checkboxes {
    max-height: 200px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.okres-checkbox-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.2s;
    font-size: 0.85rem;
}

.okres-checkbox-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.okres-checkbox-item input[type="checkbox"] {
    cursor: pointer;
    accent-color: var(--primary);
}

.okres-checkbox-item label {
    cursor: pointer;
    flex: 1;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.8rem;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--primary);
    margin-bottom: 10px;
}

.sidebar-info {
    margin-top: auto;
    background: rgba(255, 255, 255, 0.03);
    padding: 15px;
    border-radius: 12px;
    font-size: 0.85rem;
}

.footer-info {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Main Content */
.content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
}

.tabs {
    display: flex;
    gap: 10px;
    background: var(--glass-bg);
    padding: 5px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 8px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.tab-btn.active {
    background: var(--primary);
    color: white;
}

.btn-primary {
    background: var(--primary);
    border: none;
    color: white;
    padding: 10px 20px;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text);
    padding: 10px 20px;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary);
}

.actions {
    display: flex;
    gap: 10px;
}

/* Table */
.table-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.table-header {
    margin-bottom: 20px;
}

#school-search {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px 20px;
    color: white;
}

.table-wrapper {
    overflow-y: auto;
    flex: 1;
}

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

th {
    text-align: left;
    padding: 15px;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--glass-border);
    cursor: pointer;
}

td {
    padding: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.percentage-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.9rem;
}

.high {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.medium {
    background: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
}

.low {
    background: rgba(16, 185, 129, 0.2);
    color: #6ee7b7;
}

.nachod-leavers {
    color: var(--primary);
    font-weight: 700;
    font-style: italic;
    font-size: 0.9em;
}

.school-ending {
    color: var(--danger) !important;
}

/* Map */
#map {
    height: 100%;
    border-radius: 24px;
    border: 1px solid var(--glass-border);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--background);
    margin: 5% auto;
    padding: 40px;
    width: 80%;
    max-width: 1000px;
    border-radius: 24px;
    border: 1px solid var(--glass-border);
    position: relative;
    box-shadow: 0 0 50px rgba(99, 102, 241, 0.3);
}

.close-modal {
    position: absolute;
    right: 20px;
    top: 20px;
    font-size: 2rem;
    cursor: pointer;
    color: var(--text-muted);
}

.chart-container {
    height: 500px;
    margin-top: 20px;
}

.tab-content {
    display: none;
    height: 100%;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}