/* ==========================================================================
   Ravi Developer - Main Stylesheet
   ========================================================================== */

/* CSS Variables */
:root {
    /* Colors - Dark Theme (Default) */
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #252525;
    --bg-hover: #2a2a2a;
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    
    --border-color: #2a2a2a;
    --border-light: #333333;
    
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-hover: #4f46e5;
    
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.5);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Layout */
    --sidebar-width: 280px;
    --header-height: 60px;
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --bg-hover: #dee2e6;
    
    --text-primary: #1a1a1a;
    --text-secondary: #495057;
    --text-muted: #868e96;
    
    --border-color: #dee2e6;
    --border-light: #e9ecef;
    
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.15);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-hover);
}

img {
    max-width: 100%;
    height: auto;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

code, pre {
    font-family: var(--font-mono);
}

code {
    padding: 0.125rem 0.375rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: 0.875em;
}

pre {
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    overflow-x: auto;
}

pre code {
    padding: 0;
    background: none;
}

/* Utility Classes */
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-info { color: var(--info); }

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-light);
}

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

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

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

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

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

.btn-danger:hover {
    background: #dc2626;
    border-color: #dc2626;
}

.btn-ghost {
    background: transparent;
    border-color: transparent;
}

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

.btn-sm {
    padding: 0.25rem 0.75rem;
    font-size: 0.8125rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-icon-lg {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
}

.btn-xs {
    width: 24px;
    height: 24px;
}

/* ==========================================================================
   Forms
   ========================================================================== */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.form-link {
    font-size: 0.8125rem;
    color: var(--accent-primary);
}

.form-input {
    display: block;
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-family: inherit;
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input.is-invalid {
    border-color: var(--danger);
}

.form-error {
    display: block;
    margin-top: 0.375rem;
    font-size: 0.8125rem;
    color: var(--danger);
}

.input-group {
    position: relative;
    display: flex;
}

.input-group .form-input {
    flex: 1;
    padding-right: 44px;
}

.input-addon {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.form-checkbox input {
    display: none;
}

.checkbox-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.form-checkbox input:checked + .checkbox-mark {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.form-checkbox input:checked + .checkbox-mark::after {
    content: '';
    display: block;
    width: 5px;
    height: 9px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-bottom: 2px;
}

.password-strength {
    margin-top: 0.5rem;
}

.strength-bar {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.strength-fill {
    height: 100%;
    width: 0;
    background: var(--danger);
    transition: all var(--transition-normal);
}

.strength-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
}

/* ==========================================================================
   Alerts
   ========================================================================== */

.alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    position: relative;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning);
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: var(--info);
}

.alert-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
}

.alert-close:hover {
    opacity: 1;
}

/* ==========================================================================
   App Layout
   ========================================================================== */

.app-layout {
    min-height: 100vh;
}

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

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    z-index: 100;
    transition: transform var(--transition-normal), width var(--transition-normal);
}

.sidebar.collapsed {
    transform: translateX(-100%);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.125rem;
}

.sidebar-logo img {
    width: 32px;
    height: 32px;
}

.sidebar-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 0;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-normal);
}

.sidebar-toggle:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md) 0;
}

.sidebar-section {
    padding: 0 var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.sidebar-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-sm);
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.sidebar-nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sidebar-nav-item.active {
    background: var(--accent-primary);
    color: white;
}

.sidebar-nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    font-size: 1rem;
}

.sidebar-nav-text {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-empty {
    padding: var(--spacing-lg);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.sidebar-empty .btn {
    margin-top: var(--spacing-sm);
}

.sidebar-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.sidebar-user-avatar {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--accent-primary);
    border-radius: var(--radius-full);
    color: white;
    font-weight: 600;
    font-size: 0.875rem;
}

.sidebar-user-info {
    flex: 1;
    min-width: 0;
}

.sidebar-user-name {
    display: block;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-plan {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.sidebar-user-menu {
    position: relative;
}

.sidebar-stats {
    padding: var(--spacing-sm);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.stat-bar {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 0.25rem;
}

.stat-bar-fill {
    height: 100%;
    background: var(--accent-primary);
    transition: width var(--transition-normal);
}

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

.sidebar-stats .stat-usage {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.5rem;
}

.sidebar-stats .stat-cost {
    font-variant-numeric: tabular-nums;
    font-weight: 600;
    color: var(--text-muted);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition-normal);
}

/* ==================== Sidebar recolhível (mini-trilho) — desktop ==================== */
@media (min-width: 769px) {
    .app-container.sidebar-collapsed { --sidebar-width: 76px; }

    .app-container.sidebar-collapsed .sidebar-logo span,
    .app-container.sidebar-collapsed .sidebar-section-header,
    .app-container.sidebar-collapsed .sidebar-nav-text,
    .app-container.sidebar-collapsed .sidebar-user-info,
    .app-container.sidebar-collapsed .sidebar-user-menu,
    .app-container.sidebar-collapsed .sidebar-empty {
        display: none;
    }

    .app-container.sidebar-collapsed .sidebar-header {
        flex-direction: column;
        gap: 0.6rem;
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .app-container.sidebar-collapsed .sidebar-section {
        padding: 0 0.5rem;
    }

    .app-container.sidebar-collapsed .sidebar-nav-item {
        justify-content: center;
        padding: 0.6rem 0;
        position: relative;
    }

    .app-container.sidebar-collapsed .sidebar-nav-icon {
        width: auto;
    }

    .app-container.sidebar-collapsed .sidebar-user {
        justify-content: center;
        padding: var(--spacing-sm);
    }

    .app-container.sidebar-collapsed .sidebar-toggle svg {
        transform: rotate(180deg);
    }
}

.page-content {
    flex: 1;
    padding: var(--spacing-xl);
}

/* Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.header-title {
    font-size: 1.25rem;
    font-weight: 600;
}

.mobile-menu-toggle {
    display: none;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.breadcrumb-item {
    color: var(--text-secondary);
}

.breadcrumb-item.active {
    color: var(--text-primary);
}

.breadcrumb-separator {
    color: var(--text-muted);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-search {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--text-muted);
}

.header-search-input {
    width: 200px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.header-search-input:focus {
    outline: none;
}

.header-search-input::placeholder {
    color: var(--text-muted);
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.375rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}

.status-indicator.online {
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.status-indicator.offline {
    background: var(--danger);
}

.header-notifications {
    position: relative;
}

.notification-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    min-width: 16px;
    height: 16px;
    padding: 0 4px;
    background: var(--danger);
    border-radius: var(--radius-full);
    font-size: 0.625rem;
    font-weight: 600;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Dropdown */
.dropdown-menu {
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: 0.5rem;
    min-width: 180px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: 200;
}

.dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.dropdown-item.text-danger {
    color: var(--danger);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 0.25rem 0;
}

/* Status Dots */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}

.status-dot.running {
    background: var(--warning);
    animation: pulse 1.5s ease-in-out infinite;
}

.status-dot.completed {
    background: var(--success);
}

.status-dot.failed {
    background: var(--danger);
}

.status-dot.pending {
    background: var(--text-muted);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Spinner */
.spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   Dashboard
   ========================================================================== */

.dashboard {
    max-width: 1400px;
    margin: 0 auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.stat-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    color: white;
}

.stat-card-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.dashboard-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.dashboard-card.full-width {
    grid-column: 1 / -1;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.card-content {
    padding: var(--spacing-lg);
}

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

.project-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: background var(--transition-fast);
}

.project-item:hover {
    background: var(--bg-hover);
}

.project-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
}

.project-info {
    flex: 1;
    min-width: 0;
}

.project-name {
    display: block;
    font-weight: 500;
}

.project-meta {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.activity-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    color: var(--text-muted);
}

.activity-icon.completed {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.activity-icon.running {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.activity-icon.failed {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.activity-content {
    flex: 1;
}

.activity-title {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
}

.activity-meta {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.quick-start-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.quick-start-item {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.quick-start-item:hover {
    border-color: var(--accent-primary);
    background: var(--bg-hover);
}

.quick-start-item.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.quick-start-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--accent-primary);
}

.quick-start-title {
    font-weight: 600;
}

.quick-start-desc {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--text-muted);
}

.empty-state svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state p {
    margin-bottom: var(--spacing-md);
}

.empty-state.small {
    padding: var(--spacing-lg);
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.modal.show {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
}

.modal-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    margin: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.95);
    transition: transform var(--transition-fast);
}

.modal.show .modal-container {
    transform: scale(1);
}

.modal-lg .modal-container,
.modal-container.modal-lg {
    max-width: 800px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.125rem;
}

.modal-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.modal-body {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

/* ==========================================================================
   Toast Notifications
   ========================================================================== */

#toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 2000;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    min-width: 300px;
    max-width: 400px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideIn var(--transition-normal) ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast-icon {
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    color: var(--text-primary);
}

.toast-message {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.toast-close {
    flex-shrink: 0;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .page-content {
        padding: var(--spacing-md);
    }
    
    .header-search {
        display: none;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .quick-start-grid {
        grid-template-columns: 1fr;
    }
}