:root {
    --bg-color: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6; /* Blue-500 */
    --accent-glow: rgba(59, 130, 246, 0.5);
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(51, 65, 85, 0.5);
    --danger: #ef4444;
    --success: #10b981;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    display: flex;
    justify-content: center;
    padding: 2rem;
}

/* Background Orbs */
.glass-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -1;
    opacity: 0.6;
}

.orb-1 {
    width: 300px;
    height: 300px;
    background: #6366f1;
    top: -50px;
    left: -50px;
    animation: float 10s infinite alternate;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: #ec4899;
    bottom: -100px;
    right: -100px;
    animation: float 12s infinite alternate-reverse;
}

@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(30px, 50px); }
}

.container {
    width: 100%;
    max-width: 1000px;
    z-index: 10;
}

header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease-out;
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.tagline {
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Upload Section */
.upload-section {
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.drop-zone {
    background: var(--glass-bg);
    border: 2px dashed var(--glass-border);
    border-radius: 20px;
    padding: 3rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    cursor: pointer;
}

.drop-zone:hover, .drop-zone.drag-over {
    border-color: var(--accent-color);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

.drop-icon {
    font-size: 4rem;
    color: var(--accent-color);
    display: block;
    margin-bottom: 1rem;
}

.drop-text {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.upload-btn {
    background: linear-gradient(135deg, var(--accent-color), #2563eb);
    color: white;
    border: none;
    padding: 12px 30px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.upload-btn:hover {
    transform: scale(1.05);
}

/* File Manager */
.file-manager {
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.fm-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.fm-actions {
    display: flex;
    gap: 10px;
}

#search-files {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 10px 15px;
    border-radius: 10px;
    color: white;
    outline: none;
    transition: 0.3s;
}

#search-files:focus {
    border-color: var(--accent-color);
}

.refresh-btn {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    cursor: pointer;
    transition: 0.3s;
}

.refresh-btn:hover {
    background: var(--accent-color);
}

.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
}

.file-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    position: relative;
    transition: 0.3s;
    overflow: hidden;
}

.file-card:hover {
    transform: translateY(-5px);
    border-color: var(--glass-border);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.file-icon {
    font-size: 3rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    display: block;
}
.file-icon.fa-file-image { color: #f472b6; }
.file-icon.fa-file-pdf { color: #ef4444; }
.file-icon.fa-file-code { color: #22c55e; }
.file-icon.fa-file-audio, .file-icon.fa-file-video { color: #a855f7; }

.file-name {
    font-size: 0.95rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.5rem;
}

.file-size {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.file-actions {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    gap: 10px;
}

.action-btn {
    background: rgba(255,255,255,0.05);
    border: none;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    transition: 0.2s;
}

.action-btn:hover {
    background: rgba(255,255,255,0.2);
    color: white;
}

.action-btn.delete:hover {
    background: var(--danger);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.hidden {
    display: none !important;
}

.modal {
    background: #1e293b;
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 20px;
    width: 90%;
    max-width: 400px;
    animation: zoomIn 0.3s;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.share-link-box {
    display: flex;
    gap: 10px;
    margin-bottom: 1rem;
}

#share-link-input {
    flex: 1;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--glass-border);
    padding: 10px;
    border-radius: 8px;
    color: var(--success);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    padding: 15px 25px;
    border-radius: 12px;
    backdrop-filter: blur(10px);
    animation: slideInRight 0.3s;
    z-index: 200;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }

/* Animations */
@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes zoomIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.1);
    border-radius: 3px;
    margin-top: 15px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--success);
    width: 0%;
    transition: width 0.1s;
}