styles.css

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8fafc;
}

/* App Container with Neon Purple Background */
.app {
    min-height: 100vh;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 25%, #a855f7 50%, #c084fc 75%, #e879f9 100%);
    background-size: 400% 400%;
    animation: neonGradient 8s ease infinite;
    position: relative;
}

.app::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(139, 92, 246, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(168, 85, 247, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(232, 121, 249, 0.2) 0%, transparent 50%);
    pointer-events: none;
}

@keyframes neonGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Header */
.header {
    text-align: center;
    padding: 2rem 1rem;
    color: white;
    position: relative;
    z-index: 1;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.shield-icon {
    font-size: 3rem;
    color: #fbbf24;
    filter: drop-shadow(0 0 10px rgba(251, 191, 36, 0.5));
}

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin: 0;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

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

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    margin-bottom: 1.5rem;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 1.5rem;
}

/* Input Section */
.language-select {
    padding: 0.5rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    background: white;
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.language-select:focus {
    outline: none;
    border-color: #8b5cf6;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.code-input {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    resize: vertical;
    min-height: 200px;
    background: #fafafa;
    transition: all 0.2s ease;
}

.code-input:focus {
    outline: none;
    border-color: #8b5cf6;
    background: white;
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.1);
}

.code-input::placeholder {
    color: #9ca3af;
    font-style: italic;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}

.code-input:focus::placeholder {
    opacity: 0.4;
}

.analyze-btn {
    width: 100%;
    margin-top: 1rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, #8b5cf6, #3b82f6);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: 0 4px 14px rgba(139, 92, 246, 0.4);
}

.analyze-btn:hover {
    background: linear-gradient(135deg, #7c3aed, #2563eb);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.5);
}

.analyze-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Summary Grid */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.summary-item {
    text-align: center;
    padding: 1.5rem 1rem;
    border-radius: 12px;
    border: 2px solid;
    transition: transform 0.2s ease;
    position: relative;
    overflow: hidden;
}

.summary-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: currentColor;
    opacity: 0.3;
}

.summary-item:hover {
    transform: translateY(-2px);
}

.summary-item.total {
    background: linear-gradient(135deg, #f3f4f6, #e5e7eb);
    border-color: #9ca3af;
    color: #6b7280;
}

.summary-item.critical {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border-color: #fca5a5;
    color: #dc2626;
}

.summary-item.high {
    background: linear-gradient(135deg, #fff7ed, #fed7aa);
    border-color: #fdba74;
    color: #ea580c;
}

.summary-item.medium {
    background: linear-gradient(135deg, #fefce8, #fef3c7);
    border-color: #fde047;
    color: #ca8a04;
}

.summary-item.low {
    background: linear-gradient(135deg, #f0f9ff, #dbeafe);
    border-color: #7dd3fc;
    color: #0284c7;
}

.summary-number {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.summary-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Code Output */
.code-output {
    background: linear-gradient(135deg, #f8fafc, #f1f5f9);
    padding: 1.5rem;
    border-radius: 12px;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Courier New', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    white-space: pre-wrap;
    overflow-x: auto;
    max-height: 400px;
    overflow-y: auto;
    border: 2px solid #e5e7eb;
    margin: 0;
}

/* Copy Button */
.copy-btn {
    padding: 0.75rem 1rem;
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.copy-btn:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

/* Lists */
.issues-list,
.fixes-list,
.suggestions-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.issue-item,
.fix-item,
.suggestion-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    border-radius: 12px;
    border-left: 4px solid;
    transition: transform 0.2s ease;
    position: relative;
    overflow: hidden;
}

.issue-item::before,
.fix-item::before,
.suggestion-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
    background: currentColor;
    opacity: 0.3;
}

.issue-item:hover,
.fix-item:hover,
.suggestion-item:hover {
    transform: translateX(4px);
}

.issue-item {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border-left-color: #ef4444;
    color: #991b1b;
}

.fix-item {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border-left-color: #22c55e;
    color: #166534;
}

.suggestion-item {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border-left-color: #f59e0b;
    color: #92400e;
}

.issue-item i,
.fix-item i,
.suggestion-item i {
    margin-top: 0.125rem;
    flex-shrink: 0;
    font-size: 1.25rem;
}

.issue-item i {
    color: #ef4444;
}

.fix-item i {
    color: #22c55e;
}

.suggestion-item i {
    color: #f59e0b;
}

/* Success Message */
.success-message {
    margin-bottom: 1.5rem;
}

.success-card {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    border: 2px solid #10b981;
}

.success-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
}

.success-icon {
    font-size: 3rem;
    color: #10b981;
    animation: pulse 2s infinite;
}

.success-text h2 {
    color: #065f46;
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.success-text p {
    color: #047857;
    font-size: 1.1rem;
    margin: 0;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Toast */
.toast {
    position: fixed;
    top: 1rem;
    right: 1rem;
    padding: 1rem 1.5rem;
    background: #1f2937;
    color: white;
    border-radius: 12px;
    font-weight: 500;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 1000;
    max-width: 350px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.toast.error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

/* Results Section Animation */
.results-section {
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }
    
    .shield-icon {
        font-size: 2rem;
    }
    
    .summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .container {
        padding: 0 0.5rem 1rem;
    }
}

@media (max-width: 480px) {
    .header-content {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .summary-grid {
        grid-template-columns: 1fr;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .card-header,
    .card-body {
        padding: 1rem;
    }
}