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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --bg-dark: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.6);
    --bg-card-hover: rgba(30, 41, 59, 0.9);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: rgba(148, 163, 184, 0.1);
    --success: #10b981;
    --warning: #f59e0b;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Background Animation */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.main-wrapper {
    position: relative;
    z-index: 1;
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--border);
    padding: 30px 20px;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    margin-bottom: 40px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 50px;
    height: 50px;
    background: transparent;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
    overflow: hidden;
    padding: 0;
    flex-shrink: 0;
}

.logo-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
    display: block;
}

.logo {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
}

.nav-item:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    color: var(--text-primary);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.nav-icon {
    font-size: 20px;
}

.nav-text {
    font-weight: 500;
    font-size: 15px;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 30px 40px;
    max-width: calc(100% - 280px);
}

/* Top Bar */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    gap: 20px;
    flex-wrap: wrap;
}

.search-wrapper {
    flex: 1;
    max-width: 500px;
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 18px;
    font-size: 18px;
    color: var(--text-secondary);
    z-index: 1;
}

.search-input {
    width: 100%;
    padding: 14px 18px 14px 48px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 15px;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(30, 41, 59, 0.8);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

/* Toggle Switch */
.toggle-switch {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}

.toggle-switch input {
    display: none;
}

.toggle-slider {
    width: 50px;
    height: 26px;
    background: rgba(148, 163, 184, 0.2);
    border-radius: 13px;
    position: relative;
    transition: all 0.3s ease;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    top: 3px;
    left: 3px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--primary);
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(24px);
}

.toggle-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Files Section */
.files-section {
    margin-top: 20px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.section-header h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.file-count {
    font-size: 14px;
    color: var(--text-secondary);
    background: var(--bg-card);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--border);
}

/* Files Grid */
.files-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.file-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
    cursor: pointer;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.file-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.file-card:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.file-card:hover::before {
    transform: scaleX(1);
}

.file-card-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.file-icon-wrapper {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.file-icon-wrapper.folder {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(251, 191, 36, 0.2));
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.file-icon-wrapper.file {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    border: 1px solid rgba(99, 102, 241, 0.3);
}

.file-name {
    flex: 1;
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
    word-break: break-word;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.file-name > span:first-child {
    font-size: 16px;
}

.exe-name {
    font-size: 13px;
    font-weight: 400;
    color: var(--text-secondary);
    margin-top: 2px;
}

.file-link {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.file-link:hover {
    color: var(--primary);
}

.file-info {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.file-info-item {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-secondary);
}

.file-info-label {
    font-weight: 500;
}

.file-info-value {
    color: var(--text-primary);
}

.loading-card {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

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

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

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
}

/* Footer */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
    padding: 18px 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-secondary);
    z-index: 10;
    margin-left: 280px;
}

.footer a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.separator {
    color: var(--border);
}

/* Responsive */
@media (max-width: 1024px) {
    .files-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .main-content {
        margin-left: 0;
        max-width: 100%;
        padding: 20px;
    }

    .top-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .search-wrapper {
        max-width: 100%;
    }

    .files-grid {
        grid-template-columns: 1fr;
    }

    .footer {
        margin-left: 0;
        flex-direction: column;
        gap: 8px;
        padding: 15px 20px;
    }

    .separator {
        display: none;
    }
}