:root {
    --bg-dark: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(30, 41, 59, 0.5);
    --danger: #ef4444;
    --success: #10b981;
    --purple-glow: rgba(139, 92, 246, 0.3);
    --blue-glow: rgba(59, 130, 246, 0.3);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background animated shapes */
.background-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.shape {
    position: absolute;
    filter: blur(100px);
    border-radius: 50%;
    animation: float 20s infinite alternate;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--purple-glow);
    top: -100px;
    right: -100px;
}

.shape-2 {
    width: 500px;
    height: 500px;
    background: var(--blue-glow);
    bottom: -150px;
    left: -150px;
    animation-delay: -5s;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: rgba(16, 185, 129, 0.2);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 4rem 1rem 2rem;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

/* Container & Layout */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
}

@media (max-width: 900px) {
    .container {
        grid-template-columns: 1fr;
    }
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Filters */
.filters {
    position: sticky;
    top: 2rem;
    height: fit-content;
}

.file-upload-group {
    margin-bottom: 2rem;
    text-align: center;
}

.upload-btn {
    display: block;
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: white;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.6);
}

.upload-status {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.filters h2 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.5rem;
}

.filter-group {
    margin-bottom: 1.2rem;
}

.filter-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.filter-group input,
.filter-group select {
    width: 100%;
    padding: 0.75rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.filter-group input:focus,
.filter-group select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.filter-group select option {
    background-color: var(--bg-dark);
    color: var(--text-primary);
}

.filter-stats {
    margin-top: 2rem;
    text-align: center;
    padding: 1rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 8px;
    color: var(--accent-color);
    font-weight: 600;
}

/* Cards Grid */
.schools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

/* School Card */
.school-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.school-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), #a78bfa);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.school-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    background: rgba(40, 53, 76, 0.6);
}

.school-card:hover::before {
    opacity: 1;
}

.school-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    line-height: 1.4;
    color: #fff;
}

.school-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.1);
}

.badge.stage { background: rgba(59, 130, 246, 0.2); color: #93c5fd; }
.badge.type { background: rgba(139, 92, 246, 0.2); color: #c4b5fd; }

.school-details {
    margin-top: auto;
    border-top: 1px solid var(--glass-border);
    padding-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.detail-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.detail-icon {
    font-size: 1.1rem;
}

.map-link {
    margin-top: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: background 0.3s ease;
}

.map-link:hover {
    background: var(--accent-hover);
}

.no-results {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 1.2rem;
}

/* Loading Spinner */
.loading-spinner {
    grid-column: 1 / -1;
    margin: 4rem auto;
    width: 50px;
    height: 50px;
    border: 4px solid var(--glass-border);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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