/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --galaxy-start: #667eea;
    --galaxy-mid: #f093fb;
    --galaxy-end: #4facfe;
    --text-color: #ffffff;
    --text-secondary: #cbd5e1;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-color: rgba(0, 0, 0, 0.3);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #000000;
    color: var(--text-color);
    overflow-x: hidden;
    min-height: 100vh;
}

/* Space Background Animation */
.space-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(180deg, #000000 0%, #0a0a0a 50%, #000000 100%);
    overflow: hidden;
}

/* Nebula Effects - Subtle white/gray clouds */
.space-background::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(200, 200, 200, 0.02) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 20%, rgba(255, 255, 255, 0.025) 0%, transparent 50%);
    animation: nebula-drift 60s ease-in-out infinite alternate;
    opacity: 0.8;
}

@keyframes nebula-drift {
    0% { transform: translate(0, 0) rotate(0deg); }
    100% { transform: translate(50px, 30px) rotate(5deg); }
}

/* Shooting Stars */
.space-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    animation: shooting-star 15s linear infinite;
}

@keyframes shooting-star {
    0% {
        box-shadow: 
            -200px 100px 2px 1px rgba(255, 255, 255, 0),
            800px 300px 2px 1px rgba(255, 255, 255, 0);
    }
    10% {
        box-shadow: 
            200px 300px 2px 1px rgba(255, 255, 255, 0.8),
            1200px 500px 2px 1px rgba(255, 255, 255, 0);
    }
    20% {
        box-shadow: 
            600px 500px 2px 1px rgba(255, 255, 255, 0),
            1200px 500px 2px 1px rgba(255, 255, 255, 0.8);
    }
    30% {
        box-shadow: 
            600px 500px 2px 1px rgba(255, 255, 255, 0),
            1600px 700px 2px 1px rgba(255, 255, 255, 0);
    }
    100% {
        box-shadow: 
            -200px 100px 2px 1px rgba(255, 255, 255, 0),
            800px 300px 2px 1px rgba(255, 255, 255, 0);
    }
}

.stars,
.stars2,
.stars3 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
}

.stars {
    background-image: 
        radial-gradient(2px 2px at 80px 120px, rgba(255, 255, 255, 0.8), rgba(0,0,0,0)),
        radial-gradient(1px 1px at 200px 50px, rgba(255, 255, 255, 0.6), rgba(0,0,0,0)),
        radial-gradient(1px 1px at 350px 180px, rgba(255, 255, 255, 0.7), rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 400px 300px;
    animation: space-move-1 200s linear infinite, twinkle-1 3s ease-in-out infinite;
    opacity: 0.6;
}

.stars2 {
    background-image: 
        radial-gradient(1px 1px at 150px 220px, rgba(255, 255, 255, 0.5), rgba(0,0,0,0)),
        radial-gradient(2px 2px at 300px 100px, rgba(255, 255, 255, 0.4), rgba(0,0,0,0)),
        radial-gradient(1px 1px at 450px 280px, rgba(255, 255, 255, 0.45), rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 500px 350px;
    animation: space-move-2 280s linear infinite, twinkle-2 4s ease-in-out infinite;
    opacity: 0.5;
}

.stars3 {
    background-image: 
        radial-gradient(1px 1px at 250px 150px, rgba(255, 255, 255, 0.3), rgba(0,0,0,0)),
        radial-gradient(1px 1px at 550px 320px, rgba(255, 255, 255, 0.35), rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 600px 400px;
    animation: space-move-3 400s linear infinite, twinkle-3 5s ease-in-out infinite;
    opacity: 0.4;
}

@keyframes space-move-1 {
    from {
        transform: translateY(0) translateX(0);
    }
    to {
        transform: translateY(-1000px) translateX(-100px);
    }
}

@keyframes space-move-2 {
    from {
        transform: translateY(0) translateX(0);
    }
    to {
        transform: translateY(-1200px) translateX(150px);
    }
}

@keyframes space-move-3 {
    from {
        transform: translateY(0) translateX(0);
    }
    to {
        transform: translateY(-1500px) translateX(-200px);
    }
}

@keyframes twinkle-1 {
    0%, 100% {
        opacity: 0.9;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes twinkle-2 {
    0%, 100% {
        opacity: 0.7;
    }
    50% {
        opacity: 0.3;
    }
}

@keyframes twinkle-3 {
    0%, 100% {
        opacity: 0.6;
    }
    50% {
        opacity: 0.2;
    }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    transition: all 0.3s ease;
    flex-wrap: wrap;
    gap: 1rem;
}

.header:hover {
    background: rgba(0, 0, 0, 0.8);
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.2);
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--primary-color);
    filter: drop-shadow(0 0 10px var(--primary-color));
}

.logo h1 {
    font-size: 1.8rem;
    background: linear-gradient(135deg, 
        #667eea 0%,      /* Blue-purple */
        #764ba2 25%,     /* Purple */
        #f093fb 50%,     /* Pink */
        #4facfe 75%,     /* Cyan */
        #00f2fe 100%     /* Light cyan */
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: galaxy-shift 8s ease-in-out infinite;
}

@keyframes galaxy-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.nav {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.nav-btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* Liquid Glass Button */
.liquid-glass-btn {
    position: relative;
    padding: 1rem 2rem;
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    color: var(--text-color);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    overflow: hidden;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.liquid-glass-btn:hover {
    background: rgba(0, 0, 0, 0.95);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 8px 40px rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.liquid-glass-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.3), 
        transparent);
    transition: left 0.5s ease;
}

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

.liquid-glass-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: radial-gradient(circle, 
        rgba(255, 255, 255, 0.2), 
        rgba(255, 255, 255, 0.1), 
        transparent);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.liquid-glass-btn:hover::after {
    width: 300px;
    height: 300px;
}

.liquid-glass-btn:hover {
    transform: translateY(-5px) scale(1.05);
    border-color: rgba(99, 102, 241, 0.6);
    box-shadow: 
        0 15px 50px rgba(99, 102, 241, 0.4),
        0 0 30px rgba(139, 92, 246, 0.3),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.liquid-glass-btn:active {
    transform: translateY(0);
}

.liquid-glass-btn span {
    position: relative;
    z-index: 1;
}

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 8px 32px var(--shadow-color);
    transition: all 0.3s ease;
}

.glass-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: 0 12px 48px rgba(99, 102, 241, 0.2);
}

/* Sections */
.section {
    display: none;
    animation: fadeIn 0.5s ease;
}

.section.active {
    display: block;
}

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

.section-title {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, 
        #667eea 0%,      /* Blue-purple */
        #764ba2 20%,     /* Purple */
        #f093fb 40%,     /* Pink */
        #feca57 60%,     /* Yellow */
        #4facfe 80%,     /* Cyan */
        #00f2fe 100%     /* Light cyan */
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% auto;
    animation: galaxy-shift 8s ease-in-out infinite;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* Upload Area */
.upload-area {
    border: 2px dashed rgba(255, 255, 255, 0.3);
    border-radius: 15px;
    padding: 3rem;
    text-align: center;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.03);
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.3);
}

.upload-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    color: var(--primary-color);
    filter: drop-shadow(0 0 10px var(--primary-color));
}

.upload-area h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.upload-area p {
    color: var(--text-secondary);
    margin: 1rem 0;
}

.upload-btn {
    margin-top: 1rem;
}

/* File List */
.file-list {
    margin-top: 2rem;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    margin-bottom: 0.5rem;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.file-item:hover {
    background: rgba(0, 0, 0, 0.8);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.2);
    transform: translateX(5px);
}

.file-item-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-item-icon {
    font-size: 2rem;
}

.file-item-details h4 {
    margin-bottom: 0.25rem;
}

.file-item-details p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.remove-file-btn {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.remove-file-btn:hover {
    background: rgba(239, 68, 68, 0.3);
}

/* Progress Bar */
.upload-progress {
    margin-top: 2rem;
}

.progress-bar {
    width: 100%;
    height: 30px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    border-radius: 15px;
    transition: width 0.3s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.3), 
        transparent);
    animation: shimmer 2s infinite;
}

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

.progress-text {
    text-align: center;
    margin-top: 1rem;
    color: var(--text-secondary);
}

/* Upload Result */
.upload-result {
    margin-top: 2rem;
}

.result-card {
    text-align: center;
}

.result-card h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

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

.share-link input {
    flex: 1;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--text-color);
    font-size: 1rem;
}

.copy-btn {
    padding: 1rem 2rem;
}

.result-info {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Download Section */
.download-input-area {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.glass-input {
    flex: 1;
    padding: 1rem 1.5rem;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    color: var(--text-color);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.glass-input:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
    background: rgba(0, 0, 0, 0.8);
}

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

.download-btn {
    padding: 1rem 2rem;
}

.download-info {
    margin-top: 2rem;
}

.file-info-card {
    text-align: center;
    padding: 3rem;
}

.file-icon {
    font-size: 5rem;
    margin-bottom: 1rem;
}

.file-info-card h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.file-size {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.download-notice {
    color: var(--accent-color);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    padding: 0.5rem 1rem;
    background: rgba(236, 72, 153, 0.1);
    border: 1px solid rgba(236, 72, 153, 0.2);
    border-radius: 8px;
    display: inline-block;
}

.download-action-btn {
    padding: 1rem 3rem;
    font-size: 1.2rem;
}

/* Auth Section */
.auth-buttons {
    display: flex;
    gap: 0.75rem;
}

.auth-btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.username {
    color: var(--text-color);
    font-weight: 600;
    font-size: 0.9rem;
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    padding: 0.5rem 0.8rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    cursor: help;
}

.admin-console-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.15), rgba(99, 102, 241, 0.15));
    border-color: rgba(236, 72, 153, 0.3);
    white-space: nowrap;
    font-weight: 600;
    transition: all 0.15s ease;
}

.admin-console-btn:hover {
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.3), rgba(99, 102, 241, 0.3));
    border-color: rgba(236, 72, 153, 0.6);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 25px rgba(236, 72, 153, 0.4);
}

.logout-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    white-space: nowrap;
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    transition: all 0.15s ease;
}

.logout-btn:hover {
    background: rgba(239, 68, 68, 0.25);
    border-color: rgba(239, 68, 68, 0.6);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 25px rgba(239, 68, 68, 0.4);
}

.auth-form {
    max-width: 500px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 600;
    font-size: 1rem;
}

.form-group .glass-input {
    width: 100%;
}

.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    margin-top: 1rem;
}

.auth-switch {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--text-secondary);
}

.auth-switch a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

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

/* My Files Section */
.my-files-list {
    margin-top: 2rem;
}

.loading-text,
.no-files-text,
.error-text {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.error-text {
    color: #ef4444;
}

.my-file-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.my-file-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 48px rgba(99, 102, 241, 0.3);
}

.my-file-info {
    display: flex;
    gap: 1.5rem;
    flex: 1;
}

.my-file-icon {
    font-size: 3rem;
    display: flex;
    align-items: center;
}

.my-file-details h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.my-file-meta {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

.my-file-stats {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

.my-file-expiry {
    color: var(--accent-color);
    font-size: 0.85rem;
}

.my-file-actions {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

.copy-link-btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
}

.delete-btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    background: rgba(239, 68, 68, 0.2);
    border-color: rgba(239, 68, 68, 0.3);
}

.delete-btn:hover {
    background: rgba(239, 68, 68, 0.3);
    border-color: rgba(239, 68, 68, 0.5);
}

/* Information Section */
.about-content {
    margin-top: 2rem;
}

.info-list {
    list-style: none;
    padding: 0;
}

.info-list li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.info-list li:last-child {
    border-bottom: none;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.feature-card {
    text-align: center;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.tech-info {
    padding: 2rem;
    margin-top: 2rem;
}

.tech-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.tech-info p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Storage Status Bar */
.storage-status-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(20, 20, 30, 0.95);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--glass-border);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 999;
}

.storage-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 200px;
}

.storage-icon {
    font-size: 1.2rem;
}

.storage-text {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.9);
    white-space: nowrap;
}

.storage-progress {
    flex: 1;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    max-width: 400px;
}

.storage-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    transition: width 0.3s ease, background 0.3s ease;
}

.storage-progress-fill.warning {
    background: linear-gradient(90deg, #f59e0b, #ef4444);
}

.storage-progress-fill.critical {
    background: linear-gradient(90deg, #ef4444, #dc2626);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Storage Full Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: rgba(20, 20, 30, 0.95);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    max-width: 500px;
    text-align: center;
}

.modal-content h2 {
    color: #ef4444;
    margin-bottom: 1rem;
}

.modal-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 2rem 5rem 2rem; /* Extra padding for storage bar */
    margin-top: 3rem;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0.75rem;
        max-width: 100%;
    }

    .header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .logo {
        width: 100%;
        justify-content: center;
        margin-bottom: 0.5rem;
    }

    .logo h1 {
        font-size: 1.4rem;
    }

    .logo-icon {
        width: 32px;
        height: 32px;
    }

    .nav {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
        order: 2;
    }

    .nav-btn {
        width: 100%;
        padding: 0.65rem 0.5rem;
        font-size: 0.85rem;
        white-space: nowrap;
    }

    .nav-btn#myFilesBtn {
        grid-column: span 2;
    }

    .glass-card {
        padding: 1.5rem;
    }

    .section-title {
        font-size: 1.75rem;
        margin-bottom: 0.4rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }

    .upload-area {
        padding: 1.5rem 1rem;
    }

    .upload-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1rem;
    }

    .upload-area h3 {
        font-size: 1.2rem;
        margin-bottom: 0.4rem;
    }

    .upload-area p {
        font-size: 0.9rem;
        margin: 0.75rem 0;
    }

    .liquid-glass-btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.95rem;
    }

    .upload-btn {
        margin-top: 0.75rem;
    }

    .file-item {
        padding: 0.75rem;
        flex-wrap: wrap;
    }

    .file-item-icon {
        font-size: 1.5rem;
    }

    .file-item-details h4 {
        font-size: 0.95rem;
    }

    .file-item-details p {
        font-size: 0.85rem;
    }

    .remove-file-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }

    .share-link {
        flex-direction: column;
        gap: 0.75rem;
    }

    .share-link input {
        padding: 0.75rem;
        font-size: 0.9rem;
    }

    .copy-btn {
        padding: 0.75rem 1.5rem;
    }

    .result-card h3 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    .result-info {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }

    .download-input-area {
        flex-direction: column;
        gap: 0.75rem;
    }

    .glass-input {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }

    .download-btn {
        padding: 0.75rem 1.5rem;
    }

    .file-info-card {
        padding: 2rem 1.5rem;
    }

    .file-icon {
        font-size: 4rem;
        margin-bottom: 0.75rem;
    }

    .file-info-card h3 {
        font-size: 1.4rem;
        margin-bottom: 0.4rem;
    }

    .file-size {
        font-size: 1rem;
        margin-bottom: 0.75rem;
    }

    .download-notice {
        font-size: 0.85rem;
        margin-bottom: 1.25rem;
        padding: 0.4rem 0.8rem;
    }

    .download-action-btn {
        padding: 0.75rem 2rem;
        font-size: 1rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .feature-icon {
        font-size: 2.5rem;
        margin-bottom: 0.75rem;
    }

    .feature-card h3 {
        font-size: 1.1rem;
        margin-bottom: 0.4rem;
    }

    .feature-card p {
        font-size: 0.9rem;
    }

    .tech-info {
        padding: 1.5rem;
        margin-top: 1rem;
    }

    .tech-info h3 {
        font-size: 1.2rem;
        margin-bottom: 0.75rem;
    }

    .tech-info p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .footer {
        padding: 1.5rem 1rem;
        margin-top: 2rem;
        font-size: 0.9rem;
    }

    .progress-bar {
        height: 25px;
    }

    .progress-text {
        font-size: 0.9rem;
        margin-top: 0.75rem;
    }

    .auth-buttons {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
        order: 1;
    }

    .auth-btn {
        width: 100%;
        padding: 0.65rem 0.5rem;
        font-size: 0.85rem;
        white-space: nowrap;
    }

    .user-info {
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 0.5rem;
        order: 1;
    }

    .username {
        font-size: 0.7rem;
        padding: 0.4rem 0.6rem;
        max-width: 100px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        flex: 0 1 auto;
    }
    
    .admin-console-btn {
        padding: 0.5rem 0.7rem;
        font-size: 0.75rem;
        flex-shrink: 0;
    }

    .logout-btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.75rem;
        flex-shrink: 0;
    }

    .my-file-card {
        flex-direction: column;
        gap: 1rem;
        padding: 1.25rem;
    }

    .my-file-info {
        width: 100%;
        gap: 1rem;
    }

    .my-file-icon {
        font-size: 2.5rem;
    }

    .my-file-details h4 {
        font-size: 1rem;
    }

    .my-file-meta,
    .my-file-stats,
    .my-file-expiry {
        font-size: 0.85rem;
    }

    .my-file-actions {
        width: 100%;
        flex-direction: column;
        gap: 0.5rem;
    }

    .copy-link-btn,
    .delete-btn {
        width: 100%;
        padding: 0.65rem 1rem;
        font-size: 0.9rem;
    }

    .auth-form {
        padding: 0;
    }

    .form-group {
        margin-bottom: 1.25rem;
    }

    .form-group label {
        font-size: 0.95rem;
        margin-bottom: 0.4rem;
    }

    .submit-btn {
        padding: 0.85rem 1.5rem;
        font-size: 1rem;
    }

    .auth-switch {
        font-size: 0.9rem;
        margin-top: 1.25rem;
    }

    .info-list li {
        font-size: 0.9rem;
        padding: 0.6rem 0;
    }
}

/* Extra small devices */
@media (max-width: 480px) {
    .container {
        padding: 0.5rem;
    }

    .glass-card {
        padding: 1rem;
        border-radius: 12px;
    }

    .header {
        padding: 0.75rem;
        border-radius: 12px;
        gap: 0.5rem;
    }

    .logo h1 {
        font-size: 1.1rem;
    }

    .logo-icon {
        width: 28px;
        height: 28px;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .section-subtitle {
        font-size: 0.85rem;
    }

    .nav {
        gap: 0.4rem;
    }

    .nav-btn {
        padding: 0.5rem 0.4rem;
        font-size: 0.75rem;
        border-radius: 8px;
    }

    .auth-buttons {
        gap: 0.4rem;
    }

    .auth-btn {
        padding: 0.5rem 0.4rem;
        font-size: 0.75rem;
        border-radius: 8px;
    }

    .username {
        font-size: 0.7rem;
        padding: 0.35rem 0.6rem;
        max-width: 100px;
    }
    
    .admin-console-btn {
        padding: 0.5rem 0.8rem;
        font-size: 0.75rem;
    }

    .logout-btn {
        padding: 0.45rem 0.6rem;
        font-size: 0.75rem;
    }

    .liquid-glass-btn {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
        border-radius: 10px;
    }

    .upload-area {
        padding: 1rem 0.5rem;
        border-radius: 10px;
    }

    .upload-icon {
        width: 45px;
        height: 45px;
    }

    .upload-area h3 {
        font-size: 1rem;
    }

    .upload-area p {
        font-size: 0.8rem;
    }

    .file-item {
        padding: 0.5rem;
        border-radius: 8px;
    }

    .file-item-icon {
        font-size: 1.3rem;
    }

    .file-item-details h4 {
        font-size: 0.85rem;
    }

    .file-item-details p {
        font-size: 0.75rem;
    }

    .remove-file-btn {
        padding: 0.35rem 0.6rem;
        font-size: 0.75rem;
    }

    .form-group label {
        font-size: 0.85rem;
    }

    .glass-input {
        padding: 0.65rem 0.85rem;
        font-size: 0.85rem;
    }

    .submit-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
}

/* Very small devices (iPhone zoomed out) */
@media (max-width: 360px) {
    .container {
        padding: 0.4rem;
    }

    .header {
        padding: 0.6rem;
    }

    .logo h1 {
        font-size: 1rem;
    }

    .nav-btn {
        font-size: 0.7rem;
        padding: 0.45rem 0.3rem;
    }

    .auth-btn {
        font-size: 0.7rem;
        padding: 0.45rem 0.3rem;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .glass-card {
        padding: 0.85rem;
    }
}

/* Profile Section */
.profile-container {
    display: flex;
    gap: 3rem;
    align-items: flex-start;
    margin-top: 2rem;
}

.profile-avatar-section {
    flex: 0 0 200px;
    text-align: center;
}

.avatar-preview {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 3px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    overflow: hidden;
}

.avatar-placeholder {
    font-size: 4rem;
}

.profile-form {
    flex: 1;
}

@media (max-width: 768px) {
    .profile-container {
        flex-direction: column;
        gap: 2rem;
    }
    
    .profile-avatar-section {
        flex: none;
        width: 100%;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--secondary-color), var(--accent-color));
}