:root {
    --primary: #00f2fe;
    --secondary: #4facfe;
    --bg: #0b0e14;
    --card-bg: rgba(255, 255, 255, 0.03);
    --border: rgba(255, 255, 255, 0.1);
    --text: #e0e6ed;
    --text-dim: #94a3b8;
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    overflow-x: hidden;
}

.dashboard {
    display: flex;
    height: 100vh;
}

.sidebar {
    width: 260px;
    background: rgba(0, 0, 0, 0.2);
    border-right: 1px solid var(--border);
    padding: 2rem;
    display: flex;
    flex-direction: column;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 3rem;
}

.nav-item {
    padding: 0.75rem 1rem;
    border-radius: 12px;
    color: var(--text-dim);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-item.active,
.nav-item:hover {
    background: var(--card-bg);
    color: var(--text);
}

.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

h1 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.file-list {
    margin-top: 2rem;
}

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

th {
    text-align: left;
    padding: 1rem;
    color: var(--text-dim);
    font-weight: 500;
    font-size: 0.875rem;
}

td {
    padding: 1rem;
    border-top: 1px solid var(--border);
}

.btn-upload {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: black;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.btn-upload:hover {
    transform: translateY(-2px);
}