/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header styles */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 0;
}

.header-content {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
}

.logo i {
    font-size: 2.5rem;
    color: #fff;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.subtitle {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
}

/* Main content */
.main-content {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.upload-card {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 100%;
    max-width: 600px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.upload-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.card-header {
    text-align: center;
    margin-bottom: 30px;
}

.card-header h2 {
    font-size: 1.8rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.card-header h2 i {
    color: #667eea;
}

.card-header p {
    color: #718096;
    font-size: 1rem;
}

/* Form styles */
.upload-form {
    margin-bottom: 30px;
}

.input-group {
    margin-bottom: 25px;
}

.input-group label {
    display: block;
    font-weight: 500;
    color: #2d3748;
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.input-group textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background: #f7fafc;
}

.input-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    background: #fff;
}

.input-hint {
    margin-top: 8px;
    font-size: 0.85rem;
    color: #718096;
    display: flex;
    align-items: center;
    gap: 5px;
}

.input-hint i {
    color: #667eea;
}

/* Button styles */
.upload-btn {
    width: 100%;
    padding: 15px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

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

.upload-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

/* Results section */
.results-section {
    margin-top: 30px;
    padding-top: 30px;
    border-top: 2px solid #e2e8f0;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.results-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2d3748;
    display: flex;
    align-items: center;
    gap: 10px;
}

.results-header h3 i {
    color: #667eea;
}

.clear-btn {
    padding: 8px 16px;
    background: #e53e3e;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.clear-btn:hover {
    background: #c53030;
}

.results-content {
    background: #f7fafc;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 20px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-wrap;
    max-height: 400px;
    overflow-y: auto;
}

.results-content:empty::before {
    content: "No results yet...";
    color: #a0aec0;
    font-style: italic;
}

/* Result status styling */
.results-content .success {
    color: #38a169;
}

.results-content .error {
    color: #e53e3e;
}

.results-content .warning {
    color: #d69e2e;
}

/* Footer */
.footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header-content {
        padding: 30px 20px;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
    
    .upload-card {
        padding: 30px 20px;
    }
    
    .results-header {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .clear-btn {
        align-self: flex-end;
    }
}

@media (max-width: 480px) {
    .logo {
        flex-direction: column;
        gap: 10px;
    }
    
    .logo h1 {
        font-size: 1.8rem;
    }
    
    .card-header h2 {
        font-size: 1.5rem;
        flex-direction: column;
        gap: 5px;
    }
}

/* Animation for results appearing */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.results-section {
    animation: fadeInUp 0.5s ease;
}

/* Custom scrollbar for results */
.results-content::-webkit-scrollbar {
    width: 8px;
}

.results-content::-webkit-scrollbar-track {
    background: #e2e8f0;
    border-radius: 4px;
}

.results-content::-webkit-scrollbar-thumb {
    background: #cbd5e0;
    border-radius: 4px;
}

.results-content::-webkit-scrollbar-thumb:hover {
    background: #a0aec0;
}