:root {
    --primary: #8B5CF6;
    --primary-hover: #7C3AED;
    --secondary: #A78BFA;
    --accent: #DDD6FE;

    --bg-dark: #0F0F23;
    --bg-panel: #17172A;
    --bg-input: #1E1E36;

    --text-main: #F3F4F6;
    --text-muted: #9CA3AF;
    --border: #2D2D44;

    --success: #10B981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --danger: #EF4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --warning: #F59E0B;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --info: #3B82F6;

    --radius-sm: 6px;
    --radius-md: 10px;
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'Fira Code', monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
.header {
    height: 64px;
    padding: 0 1.5rem;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-box {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 2px 10px rgba(139, 92, 246, 0.3);
}

.brand h1 {
    font-size: 1.1rem;
    font-weight: 600;
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-weight: 500;
    font-size: 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--font-sans);
    color: white;
}

.btn.primary {
    background: var(--primary);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.2);
}

.btn.primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

.btn.secondary {
    background: var(--bg-input);
    border-color: var(--border);
}

.btn.secondary:hover {
    background: #2A2A4A;
    border-color: var(--secondary);
}

.btn.sm {
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
}

.w-full {
    width: 100%;
}

.mb-4 {
    margin-bottom: 1rem;
}

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

/* Inputs View */
.view-inputs {
    height: calc(100vh - 64px);
    padding: 1.5rem;
}

.split-pane {
    display: flex;
    gap: 1.5rem;
    height: 100%;
}

.pane {
    flex: 1;
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.pane-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pane-header h2 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
}

.pane-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

textarea {
    flex-grow: 1;
    width: 100%;
    border: none;
    background: transparent;
    color: var(--text-main);
    padding: 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.5;
    resize: none;
}

textarea:focus {
    outline: none;
}

textarea::placeholder {
    color: #4A4A6A;
}

/* Results View */
.view-results {
    height: calc(100vh - 64px);
    background: var(--bg-dark);
}

.results-layout {
    display: flex;
    height: 100%;
}

.results-sidebar {
    width: 280px;
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
}

.summary-card {
    background: var(--bg-input);
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.summary-card h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
}

.stat-row:last-child {
    margin-bottom: 0;
}

.badge {
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.75rem;
}

.badge.danger {
    background: var(--danger-bg);
    color: var(--danger);
}

.badge.success {
    background: var(--success-bg);
    color: var(--success);
}

.badge.warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.badge.info {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info);
}

.filter-group h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
    cursor: pointer;
    color: var(--text-main);
}

.checkbox-label input {
    accent-color: var(--primary);
    cursor: pointer;
}

/* Diff Content */
.results-content {
    flex-grow: 1;
    padding: 2rem;
    overflow-y: auto;
}

.diff-header {
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1rem;
}

.diff-header h2 {
    font-size: 1.25rem;
}

.diff-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Change Item styling */
.change-item {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    animation: slideFade 0.3s ease;
}

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

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

.change-header {
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border);
    background: var(--bg-input);
}

.change-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.method-badge {
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.7rem;
    text-transform: uppercase;
    background: var(--border);
    color: var(--text-muted);
}

.method-badge.get {
    background: rgba(59, 130, 246, 0.2);
    color: #60A5FA;
}

.method-badge.post {
    background: rgba(16, 185, 129, 0.2);
    color: #34D399;
}

.method-badge.put {
    background: rgba(245, 158, 11, 0.2);
    color: #FBBF24;
}

.method-badge.delete {
    background: rgba(239, 68, 68, 0.2);
    color: #F87171;
}

.change-body {
    padding: 1.25rem;
    font-size: 0.85rem;
    line-height: 1.5;
}

.diff-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 0.5rem;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.2);
    margin-top: 0.5rem;
}

.diff-text.added {
    color: var(--success);
    border-left: 2px solid var(--success);
}

.diff-text.removed {
    color: var(--danger);
    border-left: 2px solid var(--danger);
}

.diff-text.modified {
    color: var(--warning);
    border-left: 2px solid var(--warning);
}

.detail-line {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.detail-icon {
    font-weight: bold;
    width: 16px;
    text-align: center;
}

.detail-icon.plus {
    color: var(--success);
}

.detail-icon.minus {
    color: var(--danger);
}

.detail-icon.tilde {
    color: var(--warning);
}

.empty-changes {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem;
    background: var(--bg-panel);
    border-radius: var(--radius-md);
    border: 1px dashed var(--border);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}