:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #4ade80;
    --danger-color: #f87171;
    --warning-color: #fbbf24;
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --card-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 20px 40px rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--bg-color) 0%, #1a1f3a 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
.header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 20px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-section i {
    font-size: 2.5rem;
    color: white;
}

.header h1 {
    font-size: 2.5rem;
    color: white;
    font-weight: 700;
}

.subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

.badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: white;
    backdrop-filter: blur(10px);
}

/* Search Section */
.search-section {
    margin-bottom: 30px;
}

.search-box {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.search-box i.fa-search {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 1.2rem;
}

.search-box input {
    width: 100%;
    padding: 15px 50px 15px 55px;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    background: var(--card-bg);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.clear-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 5px;
    transition: color 0.3s ease;
}

.clear-btn:hover {
    color: var(--danger-color);
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 20px;
    background: var(--card-bg);
    border-radius: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.breadcrumb-item {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 5px 12px;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.breadcrumb-item:hover {
    background: var(--card-hover);
    color: var(--primary-color);
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin-left: 10px;
    color: var(--text-secondary);
}

/* Stats Bar */
.stats-bar {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
}

.stat-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.stat-item span {
    font-weight: 600;
    color: var(--text-primary);
}

/* Toolbar */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--card-bg);
    border-radius: 12px;
    margin-bottom: 20px;
}

.view-options {
    display: flex;
    gap: 10px;
}

.view-btn {
    padding: 10px 15px;
    background: transparent;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.view-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.sort-options select {
    padding: 10px 15px;
    background: var(--card-hover);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.95rem;
}

/* File Grid */
.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.file-grid.list-view {
    grid-template-columns: 1fr;
}

.file-item {
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--text-primary);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.file-grid.list-view .file-item {
    flex-direction: row;
    text-align: left;
    gap: 15px;
}

.file-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
    background: var(--card-hover);
}

.file-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.file-grid.list-view .file-icon {
    font-size: 2rem;
    margin-bottom: 0;
}

.file-icon.folder {
    color: #fbbf24;
}

.file-icon.image {
    color: #f472b6;
}

.file-icon.video {
    color: #a78bfa;
}

.file-icon.audio {
    color: #34d399;
}

.file-icon.archive {
    color: #fb923c;
}

.file-icon.code {
    color: #60a5fa;
}

.file-icon.document {
    color: #38bdf8;
}

.file-icon.pdf {
    color: #ef4444;
}

.file-icon.default {
    color: var(--text-secondary);
}

.file-info {
    width: 100%;
}

.file-name {
    font-weight: 600;
    margin-bottom: 8px;
    word-break: break-word;
}

.file-meta {
    display: flex;
    justify-content: center;
    gap: 15px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.file-grid.list-view .file-meta {
    justify-content: flex-start;
}

.file-size, .file-date {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Loading */
.loading {
    text-align: center;
    padding: 60px 20px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* No Results */
.no-results {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.no-results i {
    font-size: 4rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 20px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
}

.footer-links {
    margin-top: 10px;
}

.footer-links a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }

    .header-content {
        flex-direction: column;
        gap: 15px;
    }

    .file-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
    }

    .toolbar {
        flex-direction: column;
        gap: 15px;
    }

    .stats-bar {
        flex-direction: column;
        gap: 10px;
    }
}