/* ============================================
   CAUCIONAR - MODERN DESIGN SYSTEM
   ============================================ */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================
   CSS VARIABLES - DESIGN TOKENS
   ============================================ */
:root {
    /* Primary Colors - Premium Indigo/Slate */
    --color-primary: #8b5cf6;
    --color-primary-dark: #7c3aed;
    --color-primary-light: #a78bfa;
    --color-primary-lighter: #c4b5fd;
    --color-primary-gradient: linear-gradient(135deg, #8b5cf6 0%, #a855f7 100%);

    /* Secondary Colors - Violet/Pink */
    --color-secondary: #a855f7;
    --color-secondary-dark: #9333ea;
    --color-secondary-light: #c084fc;

    /* Accent Colors */
    --color-accent: #10b981;
    --color-accent-dark: #059669;

    /* Dark Mode Palette (used for sidebar/topbar) */
    --color-dark-bg: #0f172a;
    --color-dark-surface: #1e293b;
    --color-dark-border: rgba(255, 255, 255, 0.1);

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Semantic Colors */
    --color-success: #10b981;
    --color-success-dark: #065f46;
    --color-success-light: #d1fae5;
    --color-warning: #f59e0b;
    --color-warning-dark: #92400e;
    --color-warning-light: #fef3c7;
    --color-danger: #ef4444;
    --color-danger-dark: #991b1b;
    --color-danger-light: #fee2e2;
    --color-info: #3b82f6;
    --color-info-dark: #1e40af;
    --color-info-light: #dbeafe;

    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-modern: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --bg-dark: #111827;
    --bg-warning-soft: #fffbeb;
    --border-warning: #f59e0b;
    --text-warning: #92400e;

    /* Text Colors */
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-tertiary: #9ca3af;
    --text-inverse: #ffffff;

    /* Border Colors */
    --border-color: #e5e7eb;
    --border-color-dark: #d1d5db;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 20px -1px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 30px -3px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-premium: 0 20px 40px -10px rgba(99, 102, 241, 0.15);

    /* Glassmorphism */
    --glass-bg: rgba(248, 250, 252, 0.85);
    --glass-border: rgba(248, 250, 252, 0.5);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    --glass-blur: blur(12px);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Layout */
    --sidebar-width: 220px;
    --sidebar-collapsed-width: 88px;
    --header-height: 80px;
    --max-content-width: 1400px;

    /* Z-index */
    --z-sidebar: 1000;
    --z-header: 999;
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-modern: radial-gradient(circle at top left, #0f172a 0%, #1e293b 100%);
    --bg-warning-soft: rgba(245, 158, 11, 0.15);
    --border-warning: #fbbf24;
    --text-warning: #fef3c7;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border-color: #334155;
    --border-color-dark: #475569;
    --shadow-md: 0 4px 20px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 30px -3px rgba(0, 0, 0, 0.4);
    --glass-bg: rgba(15, 23, 42, 0.85);
    --glass-border: rgba(51, 65, 85, 0.5);
    --color-white: #ffffff;
    --color-gray-50: #1e293b;
    --color-gray-100: #334155;
    --color-gray-200: #475569;
    --color-gray-700: #cbd5e1;
    --color-gray-800: #f1f5f9;
    --color-gray-900: #f8fafc;
    --color-secondary: #c084fc;
    --color-secondary-dark: #a855f7;
    --color-secondary-light: #d8b4fe;

    /* Dark Mode Semantic Refinements */
    --color-success-light: rgba(16, 185, 129, 0.2);
    --color-success-dark: #34d399;
    /* Brighter green for dark bg */
    --color-warning-light: rgba(245, 158, 11, 0.2);
    --color-warning-dark: #fbbf24;
    --color-danger-light: rgba(239, 68, 68, 0.2);
    --color-danger-dark: #f87171;
    --color-info-light: rgba(59, 130, 246, 0.2);
    --color-info-dark: #60a5fa;
}

[data-theme="dark"] #sim-results {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] #sim-results .text-secondary,
[data-theme="dark"] #sim-results .text-muted {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] #sim-results span {
    color: inherit;
}

[data-theme="dark"] #sim-results #sim-gross-profit {
    color: #4ade80 !important;
    /* brighter green for dark mode */
}

/* Theme Toggle Switch */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
}

.theme-switch {
    display: inline-block;
    height: 28px;
    position: relative;
    width: 54px;
}

.theme-switch input {
    display: none;
}

.slider {
    background-color: #e2e8f0;
    bottom: 0;
    cursor: pointer;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    transition: .4s;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px;
}

.slider:before {
    background-color: #fff;
    bottom: 3px;
    content: "";
    height: 22px;
    left: 3px;
    position: absolute;
    transition: .4s;
    width: 22px;
    z-index: 2;
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

input:checked+.slider {
    background-color: var(--color-primary);
}

input:checked+.slider:before {
    transform: translateX(26px);
}

.sun-icon {
    color: #f59e0b;
    font-size: 14px;
    z-index: 1;
}

.moon-icon {
    color: #94a3b8;
    font-size: 14px;
    z-index: 1;
}

/* ============================================
   GLOBAL STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-primary);
}

/* ============================================
   LAYOUT STRUCTURE
   ============================================ */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: var(--color-dark-bg);
    color: var(--color-white);
    transition: width var(--transition-base), transform var(--transition-base);
    z-index: var(--z-sidebar);
    overflow-x: hidden;
    overflow-y: auto;
    border-right: 1px solid var(--color-dark-border);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    padding: var(--spacing-lg) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    min-height: var(--header-height);
}

.sidebar-logo-img {
    width: 42px;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.3));
    transition: transform var(--transition-base);
}

.auth-logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.sidebar-brand {
    font-size: 1.25rem;
    font-weight: 700;
    white-space: nowrap;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .sidebar-brand {
    opacity: 0;
    width: 0;
}

.sidebar-nav {
    padding: var(--spacing-lg) 0;
}

.nav-item {
    margin: var(--spacing-xs) var(--spacing-md);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.65rem 1rem;
    color: #94a3b8;
    text-decoration: none;
    border-radius: 12px;
    transition: all var(--transition-fast);
    font-weight: 500;
    font-size: 0.9rem;
}

.nav-link:hover {
    color: var(--color-white);
    background: var(--color-dark-surface);
}

.nav-link.active {
    color: var(--color-white);
    background: var(--color-primary-dark);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.nav-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
    width: 20px;
    text-align: center;
}

.nav-text {
    white-space: nowrap;
    transition: opacity var(--transition-fast);
}

.sidebar.collapsed .nav-text {
    opacity: 0;
    width: 0;
}

/* Main Content */
.main-wrapper {
    flex: 1;
    width: 100%;
    min-width: 0;
    /* Critical for flex items to prevent overflow */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: padding var(--transition-base);
    padding-left: var(--sidebar-width);
}

.sidebar.collapsed~.main-wrapper {
    padding-left: var(--sidebar-collapsed-width);
}

/* Header */
.app-header {
    position: sticky;
    top: 0;
    height: var(--header-height);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    padding: 0 var(--spacing-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: var(--z-header);
}

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

.sidebar-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    font-size: 1.25rem;
    color: var(--text-primary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
    padding: 0;
    list-style: none;
    background: none;
}

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

.breadcrumb-item+.breadcrumb-item::before {
    content: '/';
    color: var(--text-tertiary);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

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

.user-menu {
    position: relative;
}

.user-menu-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.user-menu-toggle:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-color-dark);
}

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

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

/* Main Content Area */
.main-content {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-2xl);
    max-width: var(--max-content-width);
    margin: 0 auto;
    width: 100%;
    animation: fadeIn 0.5s ease-out;
}

/* Footer */
.app-footer {
    background: transparent;
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
    width: 100%;
    display: block;
    text-align: center;
}

.footer-content {
    display: inline-block;
    max-width: var(--max-content-width);
    padding: 0 var(--spacing-2xl);
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.8rem;
    width: 100%;
}

/* ============================================
   COMPONENTS
   ============================================ */

/* Cards */
.card {
    background: var(--bg-primary);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-gradient {
    background: var(--color-primary-gradient);
    color: var(--color-white);
    border: none;
    box-shadow: var(--shadow-premium);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.card-gradient {
    background: var(--color-primary-gradient);
    color: var(--text-inverse);
    border: none;
}

.card-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.card-header-gradient {
    background: var(--bg-primary);
    color: var(--text-primary);
    border-bottom: 2px solid var(--color-primary);
    padding: 1.25rem 1.5rem;
}

.card-header-gradient .card-title {
    color: var(--color-primary-dark);
    font-weight: 800;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
    color: inherit;
}

.card-body {
    padding: var(--spacing-xl);
}

.card-footer {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* Metric Cards */
.metric-card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--color-primary-gradient);
}

.metric-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.metric-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    background: var(--color-primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--text-inverse);
    margin-bottom: var(--spacing-md);
}

.metric-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.metric-change {
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.metric-change.positive {
    color: var(--color-success);
}

.metric-change.negative {
    color: var(--color-danger);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    user-select: none;
}

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

.btn-primary {
    background: var(--color-primary-gradient);
    color: var(--text-inverse);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--color-gray-200);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-gray-300);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-primary);
    color: var(--text-inverse);
}

.btn-success {
    background: var(--color-success);
    color: var(--text-inverse);
}

.btn-danger {
    background: var(--color-danger);
    color: var(--text-inverse);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.75rem;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1rem;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    line-height: 1;
}

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

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

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

.badge-info {
    background: var(--color-info-light);
    color: var(--color-info-dark);
}

.badge-primary {
    background: var(--color-primary-lighter);
    color: var(--color-primary-dark);
}

/* Tables */
.table-container {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-inverse);
}

.table th {
    padding: var(--spacing-lg);
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr {
    transition: background var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--bg-secondary);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-control::placeholder {
    color: var(--text-tertiary);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

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

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
}

/* Alerts */
.alert {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.alert-success {
    background: var(--color-success-light);
    color: var(--color-success-dark);
    border-left: 4px solid var(--color-success);
}

.alert-warning {
    background: var(--color-warning-light);
    color: var(--color-warning-dark);
    border-left: 4px solid var(--color-warning);
}

.alert-danger {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
    border-left: 4px solid var(--color-danger);
}

.alert-info {
    background: var(--color-info-light);
    color: var(--color-info-dark);
    border-left: 4px solid var(--color-info);
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--text-tertiary);
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-state-text {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* Loading States */
.spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

.skeleton {
    background: linear-gradient(90deg, var(--color-gray-200) 25%, var(--color-gray-100) 50%, var(--color-gray-200) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* ============================================
   UTILITIES
   ============================================ */

/* Spacing */
.mt-1 {
    margin-top: var(--spacing-xs);
}

.mt-2 {
    margin-top: var(--spacing-sm);
}

.mt-3 {
    margin-top: var(--spacing-md);
}

.mt-4 {
    margin-top: var(--spacing-lg);
}

.mt-5 {
    margin-top: var(--spacing-xl);
}

.mb-1 {
    margin-bottom: var(--spacing-xs);
}

.mb-2 {
    margin-bottom: var(--spacing-sm);
}

.mb-3 {
    margin-bottom: var(--spacing-md);
}

.mb-4 {
    margin-bottom: var(--spacing-lg);
}

.mb-5 {
    margin-bottom: var(--spacing-xl);
}

.p-1 {
    padding: var(--spacing-xs);
}

.p-2 {
    padding: var(--spacing-sm);
}

.p-3 {
    padding: var(--spacing-md);
}

.p-4 {
    padding: var(--spacing-lg);
}

.p-5 {
    padding: var(--spacing-xl);
}

/* Text */
.text-primary {
    color: var(--text-primary);
}

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

.text-tertiary {
    color: var(--text-tertiary);
}

.text-success {
    color: var(--color-success);
}

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

.text-warning {
    color: var(--color-warning);
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.font-bold {
    font-weight: 700;
}

.font-semibold {
    font-weight: 600;
}

.font-medium {
    font-weight: 500;
}

/* Display */
.d-none {
    display: none;
}

.d-block {
    display: block;
}

.d-flex {
    display: flex;
}

.d-grid {
    display: grid;
}

/* Interactive Utilities */
.hover-scale {
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.hover-scale:hover {
    transform: scale(1.02);
}

.translate-y-transition {
    transition: all 0.3s ease;
}

.translate-y-transition:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1) !important;
}

.bg-soft-indigo {
    background-color: rgba(76, 45, 135, 0.1);
}

.text-indigo {
    color: #4C2D87;
}

.btn-indigo {
    background-color: #4C2D87;
    color: white;
    border-radius: 12px;
    font-weight: 600;
}

.btn-indigo:hover {
    background-color: #3a2267;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(76, 45, 135, 0.3);
}

.rounded-2xl {
    border-radius: 1rem;
}

.border-bottom-dashed {
    border-bottom: 1px dashed var(--border-color);
}

/* Flex */
.flex-column {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.align-items-center {
    align-items: center;
}

.justify-content-center {
    justify-content: center;
}

.justify-content-between {
    justify-content: space-between;
}

.gap-1 {
    gap: var(--spacing-xs);
}

.gap-2 {
    gap: var(--spacing-sm);
}

.gap-3 {
    gap: var(--spacing-md);
}

.gap-4 {
    gap: var(--spacing-lg);
}

/* Grid */
.grid-cols-1 {
    grid-template-columns: repeat(1, 1fr);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .main-content {
        padding: var(--spacing-xl);
    }

    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px !important;
        /* Fixed width on mobile for better menu view */
    }

    .sidebar.open {
        transform: translateX(0);
    }

    /* Force text visibility on mobile even if collapsed class exists */
    .sidebar .nav-text,
    .sidebar .sidebar-brand {
        opacity: 1 !important;
        width: auto !important;
        visibility: visible !important;
    }

    .main-wrapper {
        padding-left: 0 !important;
    }

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

    .app-header {
        padding: 0 var(--spacing-md);
    }

    .breadcrumb {
        display: none;
        /* Hide on small mobile to save space */
    }

    @media (min-width: 576px) {
        .breadcrumb {
            display: flex;
            font-size: 0.7rem;
        }
    }

    .user-info {
        display: none;
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    /* Card Adjustments */
    .metric-value {
        font-size: 1.5rem;
    }

    .metric-card {
        padding: var(--spacing-md);
    }

    .card-title {
        font-size: 1.1rem;
    }

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

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

    /* Header adjustments */
    .app-header {
        height: 70px;
    }

    .header-right {
        gap: var(--spacing-md);
    }

    /* Simulation Results */
    #sim-results {
        margin-top: var(--spacing-lg);
        padding: var(--spacing-lg) !important;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    .metric-value {
        font-size: 1.25rem;
    }

    .h2,
    h2 {
        font-size: 1.5rem;
    }

    .h1,
    h1 {
        font-size: 1.75rem;
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.8rem;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

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

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.animate-fade-in {
    animation: fadeIn var(--transition-base) ease-out;
}

.animate-slide-in {
    animation: slideInRight var(--transition-base) ease-out;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {

    .sidebar,
    .app-header,
    .app-footer,
    .btn,
    .sidebar-toggle {
        display: none !important;
    }

    .main-wrapper {
        margin-left: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }

}

/* ============================================
   ALERT BANNER (Blinking Notifications)
   ============================================ */
.alert-banner {
    position: fixed;
    top: var(--header-height);
    left: var(--sidebar-width);
    /* Start after sidebar */
    right: 0;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: var(--text-inverse);
    padding: var(--spacing-lg) var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-sticky);
    animation: blinkAlert 2s ease-in-out infinite;
    border-bottom: 3px solid #b91c1c;
}

/* When sidebar is collapsed */
.sidebar.collapsed~.main-wrapper .alert-banner {
    left: var(--sidebar-collapsed-width);
}


.alert-banner-content {
    max-width: var(--max-content-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.alert-banner-icon {
    font-size: 1.75rem;
    flex-shrink: 0;
    animation: bellRing 1s ease-in-out infinite;
}

.alert-banner-message {
    flex: 1;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.4;
}

.alert-banner-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: var(--text-inverse);
    font-size: 1.25rem;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.alert-banner-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* Blink Animation */
@keyframes blinkAlert {

    0%,
    100% {
        opacity: 1;
        transform: translateY(0);
    }

    50% {
        opacity: 0.85;
    }
}

/* Bell Ring Animation */
@keyframes bellRing {

    0%,
    100% {
        transform: rotate(0deg);
    }

    10%,
    30% {
        transform: rotate(-15deg);
    }

    20%,
    40% {
        transform: rotate(15deg);
    }

    50% {
        transform: rotate(0deg);
    }
}

/* Adjust main content when banner is visible */
.main-content.with-alert-banner {
    padding-top: calc(var(--spacing-2xl) + 80px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .alert-banner {
        padding: var(--spacing-md);
        left: 0;
        /* Full width on mobile */
    }


    .alert-banner-content {
        gap: var(--spacing-md);
    }

    .alert-banner-message {
        font-size: 0.875rem;
    }

    .alert-banner-icon {
        font-size: 1.5rem;
    }
}

/* ============================================
   DASHBOARD REFINEMENT UTILITIES
   ============================================ */
.bg-soft-primary {
    background-color: rgba(99, 102, 241, 0.1) !important;
}

.bg-soft-success {
    background-color: rgba(16, 185, 129, 0.1) !important;
}

.bg-soft-indigo {
    background-color: rgba(129, 140, 248, 0.1) !important;
}

.text-indigo {
    color: #818cf8 !important;
}

.last-child-no-border:last-child {
    border-bottom: none !important;
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
}

.rounded-xl {
    border-radius: 1rem !important;
}

.rounded-2xl {
    border-radius: 1.5rem !important;
}

.font-black {
    font-weight: 900;
}

.font-bold {
    font-weight: 700;
}

.font-semibold {
    font-weight: 600;
}

.font-medium {
    font-weight: 500;
}

.shadow-premium {
    box-shadow: 0 20px 40px -10px rgba(99, 102, 241, 0.12) !important;
}

.bg-modern {
    background: var(--bg-modern) !important;
}

.italic {
    font-style: italic;
}

@keyframes pulse-soft {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.6;
    }

    100% {
        opacity: 1;
    }
}

.animate-pulse {
    animation: pulse-soft 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Fix for horizontal scroll issues in layout */
.app-container,
body {
    overflow-x: hidden;
    width: 100%;
}

.main-wrapper {
    overflow-x: hidden;
}

/* ============================================
   CHAT WIDGET - ARGUITA AI
   ============================================ */
.chat-widget {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: var(--z-fixed);
    font-family: 'Inter', sans-serif;
}

.chat-button {
    width: 65px;
    height: 65px;
    border-radius: 50%;
    background: var(--color-primary-gradient);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.chat-button:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.5);
}

.chat-window {
    position: absolute;
    bottom: 85px;
    right: 0;
    width: 380px;
    height: 550px;
    background: var(--bg-primary);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    display: none;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--border-color);
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.chat-header {
    background: var(--color-primary-gradient);
    color: white;
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
}

.chat-messages {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: var(--bg-secondary);
}

.message {
    max-width: 85%;
    padding: 0.75rem 1rem;
    border-radius: 18px;
    font-size: 0.9rem;
    line-height: 1.4;
}

.message.ai {
    align-self: flex-start;
    background: var(--bg-primary);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.message.user {
    align-self: flex-end;
    background: var(--color-primary);
    color: white;
    border-bottom-right-radius: 4px;
}

.chat-input-area {
    padding: 1.25rem;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
}

.chat-input {
    flex: 1;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s;
}

.chat-input:focus {
    border-color: var(--color-primary);
}

.chat-send-btn {
    background: var(--color-primary);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
}

.chat-send-btn:hover {
    background: var(--color-primary-dark);
}

/* Typing Indicator */
.typing-indicator {
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--color-primary);
    display: none;
    align-self: flex-start;
    font-weight: 500;
}

@media (max-width: 480px) {
    .chat-window {
        width: calc(100vw - 40px);
        height: 70vh;
        bottom: 80px;
    }
}

/* Adaptive Bootstrap Utilities */
.bg-white,
.card-header.bg-white {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

.bg-light {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

.text-dark {
    color: var(--text-primary) !important;
}

.text-secondary {
    color: var(--text-secondary) !important;
}

.text-muted {
    color: var(--text-tertiary) !important;
}

.form-label,
.form-check-label {
    color: var(--text-primary) !important;
}

.border-light {
    border-color: var(--border-color) !important;
}

.border-top {
    border-top-color: var(--border-color) !important;
}

.border-bottom {
    border-bottom-color: var(--border-color) !important;
}

.border-left {
    border-left-color: var(--border-color) !important;
}

.border-right {
    border-right-color: var(--border-color) !important;
}

.border {
    border-color: var(--border-color) !important;
}

.list-group-item {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

.list-group-item-action:hover {
    background-color: var(--bg-secondary) !important;
}

.modal-content {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

.modal-header,
.modal-footer {
    border-color: var(--border-color) !important;
}

.dropdown-menu {
    background-color: var(--bg-primary) !important;
    border-color: var(--border-color) !important;
}

.dropdown-item {
    color: var(--text-primary) !important;
}

/* Soft Backgrounds - Theme Aware */
.bg-soft-primary {
    background-color: rgba(139, 92, 246, 0.15) !important;
    color: var(--color-primary-light) !important;
}

.bg-soft-indigo {
    background-color: rgba(99, 102, 241, 0.15) !important;
    color: #a5b4fc !important;
}

.bg-soft-success {
    background-color: rgba(16, 185, 129, 0.15) !important;
    color: #6ee7b7 !important;
}

.bg-soft-info {
    background-color: rgba(14, 165, 233, 0.2) !important;
    color: #7dd3fc !important;
}

.bg-soft-warning {
    background-color: rgba(245, 158, 11, 0.15) !important;
    color: #fcd34d !important;
}

.bg-soft-danger {
    background-color: rgba(239, 68, 68, 0.15) !important;
    color: #fca5a5 !important;
}

.bg-soft-light {
    background-color: var(--bg-secondary) !important;
    color: var(--text-secondary) !important;
}

/* Card & Component Overrides */
.card {
    background: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

.list-group-item {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

.list-group-item-action:hover {
    background-color: var(--bg-secondary) !important;
}

.modal-content {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
}

.modal-header,
.modal-footer {
    border-color: var(--border-color) !important;
}

.dropdown-menu {
    background-color: var(--bg-primary) !important;
    border-color: var(--border-color) !important;
}

.dropdown-item {
    color: var(--text-primary) !important;
}

.dropdown-item:hover {
    background-color: var(--bg-secondary) !important;
}

.input-group-text {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

/* Forms */
.form-select,
.form-control {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-primary) !important;
}

/* Warning Banner Special Styling */
.warning-banner-card {
    background-color: var(--bg-warning-soft) !important;
    border-left: 4px solid var(--border-warning) !important;
}

.warning-banner-card h4,
.warning-banner-card h5,
.warning-banner-card h6,
.warning-banner-card p {
    color: var(--text-warning) !important;
}

.warning-banner-card .bg-soft-warning {
    background-color: var(--border-warning) !important;
    color: var(--bg-primary) !important;
}

/* Tables */
.table {
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

.table thead th,
.table thead td {
    background-color: var(--bg-secondary) !important;
    color: var(--text-secondary) !important;
    border-color: var(--border-color) !important;
    font-weight: 600;
}

.table tbody td {
    background-color: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border-color) !important;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(var(--color-primary-rgb), 0.02) !important;
}

.table-hover tbody tr:hover {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
}

/* Specific Fix for Tables inside Cards */
.card .table {
    margin-bottom: 0;
}

.card .table thead th {
    border-top: none;
}