@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ===== CSS CUSTOM PROPERTIES (THEME SYSTEM) ===== */
:root {
    /* Accent palette */
    --primary-50: rgba(59, 130, 246, 0.08);
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #1d4ed8;
    --primary-700: #1e40af;
    --primary-800: #1e3a8a;
    --primary-900: #1d3666;

    /* RGB values for rgba() usage */
    --primary-400-rgb: 96, 165, 250;
    --primary-500-rgb: 59, 130, 246;
    --primary-600-rgb: 29, 78, 216;

    /* Supporting accents */
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Backgrounds */
    --bg-secondary: #0a0a0a;
    --bg-primary: #161616;
    --bg-tertiary: #262626;
    --surface-page: #0a0a0a;
    --surface-panel: #161616;
    --surface-elevated: #1d1d1d;
    --surface-card: #262626;
    --bg-accent: rgba(59, 130, 246, 0.12);
    --bg-overlay: rgba(10, 10, 10, 0.85);

    /* Text */
    --text-primary: #ffffff;
    --text-secondary: #a3a3a3;
    --text-tertiary: #737373;
    --text-inverse: #0a0a0a;

    /* Borders */
    --border-primary: #262626;
    --border-secondary: #2f2f2f;
    --border-accent: rgba(59, 130, 246, 0.45);

    /* Shadows */
    --shadow-sm: 0 12px 24px rgba(15, 23, 42, 0.25);
    --shadow-md: 0 18px 35px rgba(15, 23, 42, 0.35);
    --shadow-lg: 0 30px 60px rgba(2, 6, 23, 0.45);
    --shadow-xl: 0 45px 90px rgba(2, 6, 23, 0.55);

    /* Decorative gradients */
    --gradient-surface: linear-gradient(135deg, rgba(59, 130, 246, 0.18), rgba(29, 78, 216, 0.05));
    --gradient-button: linear-gradient(135deg, #3b82f6, #1d4ed8);
    --gradient-button-hover: linear-gradient(135deg, #60a5fa, #2563eb);
    --gradient-card-hover: linear-gradient(135deg, rgba(59, 130, 246, 0.28), rgba(29, 78, 216, 0.16));

    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;

    /* Typography */
    --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 'SFMono-Regular', Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-card: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light theme overrides */
[data-theme="light"] {
    --bg-secondary: #f8fafc;
    --bg-primary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --surface-page: #f8fafc;
    --surface-panel: #ffffff;
    --surface-elevated: #f1f5f9;
    --surface-card: #ffffff;
    --bg-accent: rgba(99, 102, 241, 0.12);
    --bg-overlay: rgba(148, 163, 184, 0.35);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --text-inverse: #ffffff;

    --border-primary: #e2e8f0;
    --border-secondary: #cbd5e1;
    --border-accent: rgba(99, 102, 241, 0.35);

    --shadow-sm: 0 12px 24px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 18px 35px rgba(15, 23, 42, 0.12);
    --shadow-lg: 0 30px 60px rgba(15, 23, 42, 0.16);
    --shadow-xl: 0 45px 90px rgba(15, 23, 42, 0.2);
}

/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--surface-page);
    background-image: radial-gradient(circle at 0% 0%, rgba(59, 130, 246, 0.14), transparent 42%), radial-gradient(circle at 80% 20%, rgba(37, 99, 235, 0.1), transparent 52%);
    background-attachment: fixed;
    transition: background-color var(--transition-normal), color var(--transition-normal), background-image var(--transition-normal);
    color-scheme: dark;
}

body[data-theme="light"] {
    color-scheme: light;
}

/* ===== TARGETED SCROLLBARS ===== */
:is(body, .sidebar, .main-content) {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-300) var(--bg-secondary);
}

:is(body, .sidebar, .main-content)::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

:is(body, .sidebar, .main-content)::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

:is(body, .sidebar, .main-content)::-webkit-scrollbar-thumb {
    background: var(--primary-300);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    background-clip: content-box;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

:is(body, .sidebar, .main-content)::-webkit-scrollbar-thumb:hover {
    background: var(--primary-400);
    background-clip: content-box;
}

[data-theme="dark"] :is(body, .sidebar, .main-content) {
    scrollbar-color: var(--primary-500) var(--bg-tertiary);
}

[data-theme="dark"] :is(body, .sidebar, .main-content)::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

[data-theme="dark"] :is(body, .sidebar, .main-content)::-webkit-scrollbar-thumb {
    background: var(--primary-500);
}

[data-theme="dark"] :is(body, .sidebar, .main-content)::-webkit-scrollbar-thumb:hover {
    background: var(--primary-400);
}

/* ===== LAYOUT COMPONENTS ===== */
.header {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(37, 99, 235, 0.05)) var(--surface-panel);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: var(--space-4) var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(18px);
}

.logo {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-text {
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.25), rgba(29, 78, 216, 0.08));
    color: var(--text-primary);
    box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.35);
}

.logo-mark .icon {
    width: 1.35rem;
    height: 1.35rem;
}

.version {
    font-size: var(--font-size-xs);
    background: rgba(59, 130, 246, 0.22);
    color: var(--text-primary);
    padding: var(--space-1) var(--space-2);
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.08em;
}

.status {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--error);
    animation: pulse 2s infinite;
}

.status-dot.connected {
    background: var(--success);
    animation: none;
}

.theme-toggle {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
    font-size: var(--font-size-sm);
    position: relative;
    overflow: hidden;
}

.theme-toggle::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.4), transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.theme-toggle:hover {
    background: rgba(59, 130, 246, 0.18);
    color: var(--text-primary);
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(37, 99, 235, 0.25);
}

.theme-toggle:hover::after {
    opacity: 1;
}

.container {
    display: flex;
    min-height: calc(100vh - 120px);
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6) var(--space-6);
}

.sidebar {
    width: 280px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(29, 78, 216, 0.04)), var(--surface-panel);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.06);
    padding: var(--space-6);
    overflow-y: auto;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(12px);
    transition: width var(--transition-fast), padding var(--transition-fast);
}

.sidebar-controls {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--space-4);
}

.sidebar-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(59, 130, 246, 0.12);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border var(--transition-fast), box-shadow var(--transition-fast);
}

.sidebar-toggle:hover {
    background: rgba(59, 130, 246, 0.2);
    color: var(--text-primary);
    border-color: rgba(59, 130, 246, 0.35);
    box-shadow: 0 16px 32px rgba(37, 99, 235, 0.3);
}

.sidebar-toggle .icon {
    transition: transform var(--transition-fast);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.main-content {
    flex: 1;
    padding: var(--space-6);
    overflow-y: auto;
    background: linear-gradient(135deg, rgba(38, 38, 38, 0.85), rgba(15, 15, 15, 0.65)), var(--surface-card);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
}

/* Light theme surface refinements */
body[data-theme="light"] {
    background-image: radial-gradient(circle at 0% 0%, rgba(59, 130, 246, 0.18), transparent 38%), radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.12), transparent 55%);
}

[data-theme="light"] .header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(226, 232, 240, 0.82));
    border-bottom: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .logo-mark {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.18), rgba(29, 78, 216, 0.06));
    color: #1e3a8a;
    box-shadow: inset 0 0 0 1px rgba(59, 130, 246, 0.35);
}

[data-theme="light"] .version {
    background: rgba(59, 130, 246, 0.16);
    color: #1f2937;
}

[data-theme="light"] .theme-toggle {
    background: rgba(15, 23, 42, 0.04);
    border: 1px solid rgba(148, 163, 184, 0.35);
    color: var(--text-secondary);
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .theme-toggle:hover {
    background: rgba(59, 130, 246, 0.12);
    box-shadow: 0 14px 28px rgba(59, 130, 246, 0.18);
}

[data-theme="light"] .theme-toggle::after {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.45), transparent 75%);
}

[data-theme="light"] .sidebar {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(226, 232, 240, 0.86));
    border: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .sidebar-toggle {
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(148, 163, 184, 0.35);
    color: #1e3a8a;
}

[data-theme="light"] .sidebar-toggle:hover {
    background: rgba(59, 130, 246, 0.16);
    box-shadow: 0 18px 38px rgba(59, 130, 246, 0.18);
}

[data-theme="light"] .main-content {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(226, 232, 240, 0.88));
    border: 1px solid rgba(148, 163, 184, 0.35);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .nav-item::after {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.25), rgba(29, 78, 216, 0.1));
}

[data-theme="light"] .nav-item:hover {
    box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .nav-item.active {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.35), rgba(29, 78, 216, 0.18));
    box-shadow: 0 18px 38px rgba(59, 130, 246, 0.22);
}

/* ===== NAVIGATION ===== */
.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    margin: var(--space-2) 0;
    border-radius: var(--radius-xl);
    color: var(--text-secondary);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
    font-weight: 600;
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

.theme-toggle:focus-visible,
.sidebar-toggle:focus-visible,
.nav-item:focus-visible {
    outline: 2px solid rgba(59, 130, 246, 0.75);
    outline-offset: 3px;
}

.nav-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.35), rgba(29, 78, 216, 0.15));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.nav-item:hover {
    color: var(--text-primary);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(2, 6, 23, 0.35);
}

.nav-item:hover::after {
    opacity: 1;
}

.nav-item.active {
    color: var(--text-primary);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.45), rgba(29, 78, 216, 0.25));
    box-shadow: 0 25px 45px rgba(37, 99, 235, 0.35);
}

.nav-item.active::after {
    opacity: 0.8;
}

.nav-icon {
    width: 1.125rem;
    height: 1.125rem;
    flex-shrink: 0;
}

body.sidebar-collapsed .container {
    gap: var(--space-3);
}

body.sidebar-collapsed .sidebar {
    width: 84px;
    padding: var(--space-6) var(--space-3);
}

body.sidebar-collapsed .sidebar-controls {
    justify-content: center;
    margin-bottom: var(--space-3);
}

body.sidebar-collapsed .sidebar-toggle {
    width: 44px;
}

body.sidebar-collapsed .sidebar .nav-item {
    justify-content: center;
    gap: 0;
    padding: 0;
    width: 44px;
    height: 44px;
    margin: var(--space-2) auto;
}

body.sidebar-collapsed .sidebar .nav-item span {
    display: none;
}

body.sidebar-collapsed .sidebar-nav {
    align-items: center;
}

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

body.onboarding-active {
    overflow: hidden;
}

body.onboarding-active .header,
body.onboarding-active .container {
    filter: blur(12px);
    pointer-events: none;
    user-select: none;
    transition: filter 0.3s ease;
}

.sr-only { 
    position: absolute; 
    width: 1px; 
    height: 1px; 
    padding: 0; 
    margin: -1px; 
    overflow: hidden; 
    clip: rect(0, 0, 0, 0); 
    white-space: nowrap; 
    border: 0; 
}

.loading {
    text-align: center;
    padding: var(--space-12);
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
}

.empty-state {
    text-align: center;
    padding: var(--space-12);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-primary);
}

.empty-state h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.empty-state p {
    color: var(--text-secondary);
}

/* ===== SCENARIO MANAGEMENT ===== */
.scenario-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.scenario-item.collapsed .scenario-body {
    display: none;
}

.scenario-summary {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    flex-wrap: wrap;
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--border-primary);
}

.scenario-item.collapsed .scenario-summary {
    border-bottom: none;
    padding-bottom: 0;
}

.scenario-summary-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    flex: 1;
    min-width: 0;
}

.scenario-summary-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: var(--space-3);
}

.scenario-summary-header .scenario-name {
    flex: 1 1 auto;
    min-width: 0;
}

.scenario-summary-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-3);
}

.scenario-state-pill-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    flex: 1 1 auto;
    min-width: 0;
}

.scenario-state-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    border: 1px solid var(--border-secondary);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.1;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
    text-decoration: none;
}

button.scenario-state-pill {
    cursor: pointer;
}

button.scenario-state-pill:hover,
button.scenario-state-pill:focus {
    background: rgba(var(--primary-500-rgb), 0.12);
    border-color: var(--border-accent);
    color: var(--text-primary);
    box-shadow: 0 0 0 1px rgba(var(--primary-500-rgb), 0.35);
    outline: none;
}

.scenario-state-pill.is-active {
    background: rgba(var(--primary-500-rgb), 0.18);
    border-color: rgba(var(--primary-500-rgb), 0.45);
    color: var(--text-primary);
    cursor: default;
}

.scenario-reset-btn {
    border: 1px solid var(--border-secondary);
    background: transparent;
    color: var(--text-secondary);
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    font-size: var(--font-size-sm);
    line-height: 1.1;
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.scenario-reset-btn:hover,
.scenario-reset-btn:focus {
    background: rgba(var(--primary-500-rgb), 0.12);
    border-color: var(--border-accent);
    color: var(--primary-300);
    box-shadow: 0 0 0 1px rgba(var(--primary-500-rgb), 0.25);
    outline: none;
}

.scenario-toggle-btn {
    border: 1px solid var(--border-secondary);
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.scenario-toggle-btn:hover,
.scenario-toggle-btn:focus {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-accent);
    outline: none;
}

.scenario-toggle-icon {
    font-size: var(--font-size-sm);
    line-height: 1;
}

.scenario-body {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.scenario-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-4);
}

.scenario-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.scenario-state {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.scenario-section-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

.scenario-mapping-states {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.scenario-mapping-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.scenario-mapping-item {
    padding: var(--space-3);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.scenario-mapping-name {
    font-weight: 600;
}

.scenario-mapping-meta {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.scenario-mapping-actions {
    margin-top: var(--space-2);
}

.scenario-mapping-empty {
    padding: var(--space-3);
    border: 1px dashed var(--border-secondary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

[data-theme="dark"] .scenario-item {
    background: var(--bg-tertiary);
    border-color: var(--border-secondary);
}

[data-theme="dark"] .scenario-mapping-item {
    background: var(--bg-primary);
    border-color: var(--border-secondary);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
        min-height: auto;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        border-radius: var(--radius-xl);
    }

    .main-content {
        padding: var(--space-4);
    }
    
    .page-header {
        flex-direction: column;
        gap: var(--space-4);
        align-items: stretch;
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--space-3) var(--space-4);
    }
    
    .logo {
        font-size: var(--font-size-lg);
    }
    
    .page-title {
        font-size: var(--font-size-2xl);
    }
}