:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --secondary: #475569;
    --secondary-hover: #334155;
    --danger: #ef4444;
    --border: #334155;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.5;
    padding: 2rem;
}

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

header {
    text-align: center;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #60a5fa, #a855f7);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    color: var(--text-secondary);
}

.settings-section {
    margin-bottom: 2rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 0.5rem 1rem;
}

.settings-section details summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--primary);
    padding: 0.5rem 0;
}

.settings-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 1.5rem;
    padding: 1rem 0;
    border-top: 1px solid var(--border);
    margin-top: 0.5rem;
}

.setting {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.setting label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.setting select,
.setting textarea {
    background: var(--bg-color);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-family: inherit;
}

.setting textarea {
    min-height: 100px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    resize: vertical;
}

.file-pair {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.file-pair-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.filename-input {
    background: var(--bg-color);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-family: var(--font-mono);
    flex: 1;
    margin-right: 1rem;
}

.file-type-select {
    background: var(--bg-color);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 0.5rem;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    margin-right: 1rem;
}

.remove-pair-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.2s;
}

.remove-pair-btn:hover {
    color: var(--danger);
}

.panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.panel {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.panel label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

textarea {
    background: var(--bg-color);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    padding: 1rem;
    border-radius: 0.5rem;
    min-height: 200px;
    resize: vertical;
    width: 100%;
}

textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.btn.primary {
    background: var(--primary);
    color: white;
}

.btn.primary:hover {
    background: var(--primary-hover);
}

.btn.secondary {
    background: var(--secondary);
    color: white;
}

.btn.secondary:hover {
    background: var(--secondary-hover);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Findings UX Improvements */
#result-section {
    margin-top: 3rem;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-top: 1rem;
}

.stats-badges {
    display: flex;
    gap: 0.75rem;
}

.stat-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--secondary);
}

.finding-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 0;
    margin-bottom: 2rem;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border-left: 4px solid var(--secondary);
    animation: fadeIn 0.5s ease-out;
}

.finding-card.severity-critical {
    border-left-color: var(--danger);
}

.finding-card.severity-high {
    border-left-color: #f97316;
}

.finding-card.severity-medium {
    border-left-color: #eab308;
}

.finding-card.severity-low {
    border-left-color: #22c55e;
}

.finding-card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.finding-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.severity-tag {
    text-transform: uppercase;
    font-size: 0.625rem;
    font-weight: 700;
    padding: 0.125rem 0.5rem;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
}

.severity-critical .severity-tag {
    background: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.severity-high .severity-tag {
    background: rgba(249, 115, 22, 0.2);
    color: #fdba74;
}

.severity-medium .severity-tag {
    background: rgba(234, 179, 8, 0.2);
    color: #fde047;
}

.severity-low .severity-tag {
    background: rgba(34, 197, 94, 0.2);
    color: #86efac;
}

.filename-tag {
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.line-tag {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.finding-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.finding-body {
    padding: 1.5rem;
}

.finding-explanation {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.diff-container,
.fix-container {
    background: var(--bg-color);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.diff-header,
.fix-header {
    background: rgba(255, 255, 255, 0.03);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.diff-content {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    padding: 1rem;
    white-space: pre;
    overflow-x: auto;
    color: #94a3b8;
}

.diff-line {
    display: block;
    border-left: 3px solid transparent;
    padding-left: 0.5rem;
}

.diff-line.added {
    background: rgba(34, 197, 94, 0.1);
    color: #86efac;
    border-left-color: #22c55e;
}

.diff-line.removed {
    background: rgba(239, 68, 68, 0.1);
    color: #fca5a5;
    border-left-color: #ef4444;
}

.diff-line.highlight {
    background: rgba(59, 130, 246, 0.2);
    font-weight: 500;
    color: #f1f5f9;
    border-left-color: var(--primary);
}

.diff-line.ellipsis {
    color: #64748b;
    padding: 0.25rem 1rem;
    font-style: italic;
    font-size: 0.75rem;
    background: rgba(148, 163, 184, 0.05);
}

.fix-content {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    padding: 1rem;
    color: #f1f5f9;
    overflow-x: auto;
    white-space: pre;
}

.copy-fix-btn {
    background: var(--secondary);
    color: white;
    border: none;
    padding: 0.25rem 0.5rem;
    font-size: 0.625rem;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.copy-fix-btn:hover {
    background: var(--secondary-hover);
}

#findings-container {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

#json-result {
    background: var(--bg-color);
    padding: 1.5rem;
    border-radius: 0.5rem;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: #10b981;
}

.hidden {
    display: none !important;
}