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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

header {
    text-align: center;
    color: white;
    margin-bottom: 40px;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 10px;
}

.note {
    font-size: 0.9rem;
    opacity: 0.8;
    background: rgba(255,255,255,0.2);
    display: inline-block;
    padding: 5px 15px;
    border-radius: 20px;
    margin-top: 10px;
}

main {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

section {
    margin-bottom: 40px;
}

section h2 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: #667eea;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Upload Section */
.upload-area {
    border: 3px dashed #667eea;
    border-radius: 10px;
    padding: 60px 40px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-area:hover,
.upload-area.dragover {
    background: #f8f9ff;
    border-color: #764ba2;
    transform: scale(1.02);
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.upload-text {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 20px;
}

/* Buttons */
.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #764ba2;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-download,
.btn-download-all {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 25px;
    background: white;
    border: 2px solid #667eea;
    color: #667eea;
    width: 100%;
    justify-content: center;
}

.btn-download:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.3);
}

.btn-download-all {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    grid-column: 1 / -1;
}

.btn-download-all:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.btn-icon {
    font-size: 1.3rem;
}

.btn-text {
    font-weight: 600;
}

/* Info Section */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.info-card {
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f2ff 100%);
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    border-left: 4px solid #667eea;
}

.info-card h3 {
    font-size: 1.2rem;
    color: #667eea;
    margin-bottom: 10px;
}

.profile-name {
    font-size: 1rem;
    color: #333;
    font-weight: 600;
    word-break: break-word;
}

/* Stats Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.stat-item {
    background: #f8f9ff;
    padding: 20px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.stat-label {
    font-size: 0.9rem;
    color: #666;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: #667eea;
}

/* Download Section */
.button-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

/* Preview Section */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid #e0e0e0;
}

.tab {
    padding: 12px 25px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    color: #666;
    position: relative;
    transition: all 0.3s ease;
}

.tab:hover {
    color: #667eea;
}

.tab.active {
    color: #667eea;
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: #667eea;
}

.preview-content {
    background: #1e1e1e;
    border-radius: 8px;
    padding: 20px;
    overflow-x: auto;
}

.code-preview {
    color: #d4d4d4;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

/* Footer */
footer {
    text-align: center;
    color: white;
    margin-top: 40px;
    padding: 20px;
    opacity: 0.8;
}

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

    main {
        padding: 20px;
    }

    .upload-area {
        padding: 40px 20px;
    }

    .info-grid,
    .stats-grid,
    .button-grid {
        grid-template-columns: 1fr;
    }

    .tabs {
        flex-wrap: wrap;
    }
}

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

section {
    animation: fadeIn 0.5s ease;
}