/* Variabile Futuriste */
:root {
    --primary: #00f3ff;
    --secondary: #ff00ff;
    --accent: #00ff9d;
    --dark: #0a0a1a;
    --darker: #050510;
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --neon-glow: 0 0 15px currentColor;
    --cyber-font: 'Segoe UI', system-ui, sans-serif;
}

/* Reset și Fundal */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: var(--darker);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(0, 243, 255, 0.05) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(255, 0, 255, 0.05) 0%, transparent 20%),
        linear-gradient(45deg, #050510 0%, #0a0a1a 100%);
    color: #fff;
    font-family: var(--cyber-font);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Efecte Globale */
.glass-panel {
    background: var(--glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.glass-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.7s;
}

.glass-panel:hover::before {
    left: 100%;
}

/* Header */
.cyber-header {
    text-align: center;
    padding: 2rem 1rem;
    position: relative;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.hologram-logo {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    animation: float 3s ease-in-out infinite;
    box-shadow: var(--neon-glow), 0 0 30px rgba(0, 243, 255, 0.3);
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}

.cyber-title {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.title-year {
    color: var(--accent);
    text-shadow: 0 0 10px var(--accent);
}

/* Butoane Cyber */
.cyber-button {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.cyber-button:hover {
    background: var(--primary);
    color: var(--dark);
    box-shadow: var(--neon-glow);
    transform: translateY(-2px);
}

.cyber-button.primary {
    border-color: var(--primary);
    color: var(--primary);
}

.cyber-button.secondary {
    border-color: var(--secondary);
    color: var(--secondary);
}

.cyber-button.success {
    border-color: var(--accent);
    color: var(--accent);
}

/* Zone de Upload */
.upload-zones {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.upload-zone {
    border: 2px dashed var(--glass-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s;
    background: rgba(0, 0, 0, 0.2);
}

.upload-zone:hover {
    border-color: var(--primary);
    background: rgba(0, 243, 255, 0.05);
}

.zone-icon {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 1rem;
}

.file-input {
    display: none;
}

.file-info {
    margin-top: 1rem;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 6px;
    font-size: 0.9rem;
}

/* Algoritmi de Matching */
.algorithm-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.algo-card {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    border: 1px solid transparent;
    transition: all 0.3s;
}

.algo-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.algo-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.algo-score {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent);
    text-shadow: 0 0 10px var(--accent);
}

/* Selectare Coloane */
.columns-selector {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 2rem;
    align-items: start;
    margin: 2rem 0;
}

.columns-list {
    display: grid;
    gap: 0.5rem;
    max-height: 400px;
    overflow-y: auto;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
}

.column-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    cursor: move;
    transition: all 0.2s;
}

.column-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.merge-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.merge-icon {
    font-size: 2rem;
    color: var(--secondary);
    animation: spin 3s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Tabel Previzualizare */
.preview-table-container {
    max-height: 500px;
    overflow: auto;
    margin: 2rem 0;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
}

.table-scroll {
    overflow: auto;
}

#preview-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

#preview-table th {
    background: rgba(0, 243, 255, 0.1);
    padding: 1rem;
    text-align: left;
    border-bottom: 2px solid var(--primary);
    position: sticky;
    top: 0;
}

#preview-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--glass-border);
}

#preview-table tr:hover {
    background: rgba(0, 243, 255, 0.05);
}

/* Footer */
.cyber-footer {
    margin-top: 3rem;
    padding: 2rem;
    border-top: 1px solid var(--glass-border);
}

.tech-badges {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.badge {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

@keyframes scan {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.pulse-animation {
    width: 10px;
    height: 10px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
    box-shadow: 0 0 10px var(--primary);
}

.pulsing-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 1s infinite;
    display: inline-block;
    margin-right: 8px;
}

.scan-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    animation: scan 3s linear infinite;
}

/* Responsive */
@media (max-width: 768px) {
    .cyber-title {
        font-size: 2rem;
    }
    
    .columns-selector {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
    }
    
    .upload-zones {
        grid-template-columns: 1fr;
    }
}