/* ============================================
   SISTEMA DE COMPRAS - DESIGN SYSTEM
   Version: 2.0
   Author: Antigravity AI
   ============================================ */

/* ============================================
   1. CSS VARIABLES & THEME SYSTEM
   ============================================ */
:root {
    /* Primary Colors */
    --primary-50: #eef2ff;
    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    --primary-300: #a5b4fc;
    --primary-400: #818cf8;
    --primary-500: #6366f1;
    --primary-600: #4f46e5;
    --primary-700: #4338ca;
    --primary-800: #3730a3;
    --primary-900: #312e81;

    /* Success Colors */
    --success-50: #ecfdf5;
    --success-100: #d1fae5;
    --success-200: #a7f3d0;
    --success-300: #6ee7b7;
    --success-400: #34d399;
    --success-500: #10b981;
    --success-600: #059669;
    --success-700: #047857;

    /* Warning Colors */
    --warning-50: #fffbeb;
    --warning-100: #fef3c7;
    --warning-200: #fde68a;
    --warning-300: #fcd34d;
    --warning-400: #fbbf24;
    --warning-500: #f59e0b;
    --warning-600: #d97706;
    --warning-700: #b45309;

    /* Danger Colors */
    --danger-50: #fef2f2;
    --danger-100: #fee2e2;
    --danger-200: #fecaca;
    --danger-300: #fca5a5;
    --danger-400: #f87171;
    --danger-500: #ef4444;
    --danger-600: #dc2626;
    --danger-700: #b91c1c;

    /* Info Colors */
    --info-50: #ecfeff;
    --info-100: #cffafe;
    --info-200: #a5f3fc;
    --info-300: #67e8f9;
    --info-400: #22d3ee;
    --info-500: #06b6d4;
    --info-600: #0891b2;
    --info-700: #0e7490;

    /* Neutral Colors - Light Mode */
    --neutral-50: #f8fafc;
    --neutral-100: #f1f5f9;
    --neutral-200: #e2e8f0;
    --neutral-300: #cbd5e1;
    --neutral-400: #94a3b8;
    --neutral-500: #64748b;
    --neutral-600: #475569;
    --neutral-700: #334155;
    --neutral-800: #1e293b;
    --neutral-900: #0f172a;

    /* Semantic Colors */
    --bg-primary: var(--neutral-50);
    --bg-secondary: #ffffff;
    --bg-tertiary: var(--neutral-100);
    --bg-card: #ffffff;
    --bg-input: #ffffff;
    --bg-navbar: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    --bg-sidebar: #ffffff;

    --text-primary: var(--neutral-900);
    --text-secondary: var(--neutral-600);
    --text-tertiary: var(--neutral-500);
    --text-muted: var(--neutral-400);
    --text-inverse: #ffffff;

    --border-color: var(--neutral-200);
    --border-color-focus: var(--primary-400);
    --divider-color: var(--neutral-200);

    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-colored: 0 10px 40px -10px rgb(79 70 229 / 0.4);
    --shadow-glow: 0 0 20px rgb(79 70 229 / 0.3);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;

    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

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

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    /* Slate 900 */
    --bg-secondary: #1e293b;
    /* Slate 800 */
    --bg-tertiary: #334155;
    /* Slate 700 */
    --bg-card: #1e293b;
    --bg-input: #0f172a;
    --bg-navbar: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --bg-sidebar: #1e293b;

    --text-primary: #f8fafc;
    /* Slate 50 */
    --text-secondary: #cbd5e1;
    /* Slate 300 */
    --text-tertiary: #94a3b8;
    /* Slate 400 */
    --text-muted: #64748b;
    /* Slate 500 */
    --text-inverse: #0f172a;

    --border-color: #334155;
    /* Slate 700 */
    --border-color-focus: #6366f1;
    /* Indigo 500 */
    --divider-color: #334155;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.5);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5);

    /* Bootstrap Overrides for Dark Mode */
    --bs-body-color: var(--text-primary);
    --bs-body-bg: var(--bg-primary);
    --bs-card-bg: var(--bg-card);
    --bs-table-color: var(--text-primary);
    --bs-table-bg: transparent;
    --bs-table-border-color: var(--border-color);
}

/* Dark Mode Specific Fixes */
[data-theme="dark"] .text-dark {
    color: var(--text-primary) !important;
}

/* Date input / calendar icon visibility */
input[type="date"] {
    color: var(--text-primary);
}

[data-theme="dark"] input[type="date"] {
    background: var(--bg-input);
    color: var(--text-primary);
}

/* Make the calendar icon visible on dark theme (WebKit browsers) */
input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(0.95) brightness(1.05) contrast(0.9);
}

/* Pagination visibility in dark theme */
[data-theme="dark"] .pagination .page-link {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-color);
}

[data-theme="dark"] .pagination .page-item.active .page-link {
    background: var(--primary-600);
    color: var(--text-inverse);
    border-color: var(--primary-600);
}

[data-theme="dark"] .simple-datatables .dataTable-pagination {
    color: var(--text-primary);
    background: transparent;
}

/* Notification badge tweaks */
#notification-count {
    min-width: 18px;
    height: 18px;
    font-size: 0.65rem;
    line-height: 18px;
    padding: 0 6px;
    z-index: 1100;
}

[data-theme="dark"] #notification-count {
    border-color: rgba(255,255,255,0.12) !important;
    box-shadow: 0 2px 6px rgba(0,0,0,0.4);
}

[data-theme="dark"] .text-muted {
    color: var(--text-tertiary) !important;
}

[data-theme="dark"] .bg-light {
    background-color: var(--bg-tertiary) !important;
}

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

[data-theme="dark"] .table-light {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .form-control::placeholder {
    color: var(--text-muted);
}

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

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

[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer {
    border-color: var(--border-color);
}

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

[data-theme="dark"] .dropdown-item {
    color: var(--text-primary);
}

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

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

/* ============================================
   2. BASE STYLES & RESET
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--text-primary);
    background: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color var(--transition-base), color var(--transition-base);
}

main {
    flex: 1;
}

::selection {
    background-color: var(--primary-200);
    color: var(--primary-900);
}

[data-theme="dark"] ::selection {
    background-color: var(--primary-700);
    color: var(--primary-100);
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: var(--leading-tight);
    color: var(--text-primary);
    margin-bottom: var(--spacing-4);
}

h1 {
    font-size: var(--text-4xl);
}

h2 {
    font-size: var(--text-3xl);
}

h3 {
    font-size: var(--text-2xl);
}

h4 {
    font-size: var(--text-xl);
}

h5 {
    font-size: var(--text-lg);
}

h6 {
    font-size: var(--text-base);
}

.page-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-2);
}

.page-subtitle {
    font-size: var(--text-base);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-6);
}

/* ============================================
   4. NAVBAR - REDESIGNED
   ============================================ */
.navbar {
    background: var(--bg-navbar) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-3) 0;
    transition: all var(--transition-base);
}

.navbar-brand {
    font-weight: 700;
    font-size: var(--text-xl);
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.navbar-brand img {
    border-radius: var(--radius-md);
}

.navbar .nav-link {
    font-weight: 500;
    padding: var(--spacing-2) var(--spacing-4) !important;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    position: relative;
    margin: 0 var(--spacing-1);
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-1px);
}

.navbar .nav-link.active {
    background: rgba(255, 255, 255, 0.2);
}

.navbar .nav-link i {
    margin-right: var(--spacing-2);
    font-size: 1.1em;
}

/* Notification Badge Animation */
.navbar .badge {
    animation: pulse-badge 2s infinite;
}

@keyframes pulse-badge {

    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        transform: translate(-50%, -50%) scale(1.1);
    }
}

/* Dropdown Menus */
.navbar .dropdown-menu {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2);
    animation: dropdownFadeIn var(--transition-fast);
}

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

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

.navbar .dropdown-item {
    border-radius: var(--radius-md);
    padding: var(--spacing-2) var(--spacing-3);
    transition: all var(--transition-fast);
    color: var(--text-primary);
}

.navbar .dropdown-item:hover {
    background: var(--primary-50);
    color: var(--primary-700);
}

[data-theme="dark"] .navbar .dropdown-item:hover {
    background: var(--neutral-700);
    color: var(--primary-300);
}

/* ============================================
   5. CARDS - PREMIUM DESIGN
   ============================================ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    overflow: hidden;
}

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

.card-header {
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-4) var(--spacing-5);
    font-weight: 600;
}

.card-body {
    padding: var(--spacing-5);
}

.card-footer {
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-4) var(--spacing-5);
}

/* Glassmorphism Card */
.card-glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

[data-theme="dark"] .card-glass {
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Gradient Border Card */
.card-gradient-border {
    position: relative;
    background: var(--bg-card);
    border: none;
}

.card-gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 2px;
    background: linear-gradient(135deg, var(--primary-400), var(--success-400), var(--warning-400));
    border-radius: var(--radius-xl);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

/* KPI Card */
.card-kpi {
    position: relative;
    overflow: hidden;
}

.card-kpi::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    transition: all 0.6s ease;
}

.card-kpi:hover::before {
    right: 150%;
}

.card-kpi .kpi-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    margin-bottom: var(--spacing-4);
}

.card-kpi .kpi-icon.primary {
    background: linear-gradient(135deg, var(--primary-100), var(--primary-200));
    color: var(--primary-600);
}

.card-kpi .kpi-icon.success {
    background: linear-gradient(135deg, var(--success-100), var(--success-200));
    color: var(--success-600);
}

.card-kpi .kpi-icon.warning {
    background: linear-gradient(135deg, var(--warning-100), var(--warning-200));
    color: var(--warning-600);
}

.card-kpi .kpi-icon.danger {
    background: linear-gradient(135deg, var(--danger-100), var(--danger-200));
    color: var(--danger-600);
}

.card-kpi .kpi-value {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: var(--spacing-1);
}

.card-kpi .kpi-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.card-kpi .kpi-trend {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
    font-size: var(--text-sm);
    font-weight: 600;
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius-full);
    margin-top: var(--spacing-2);
}

.card-kpi .kpi-trend.up {
    background: var(--success-100);
    color: var(--success-700);
}

.card-kpi .kpi-trend.down {
    background: var(--danger-100);
    color: var(--danger-700);
}

/* ============================================
   6. BUTTONS - MODERN STYLE
   ============================================ */
.btn {
    font-weight: 500;
    border-radius: var(--radius-lg);
    padding: var(--spacing-2) var(--spacing-4);
    transition: all var(--transition-fast);
    border: none;
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn i {
    font-size: 1.1em;
}

/* Primary Button */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(79, 70, 229, 0.5);
    color: white;
}

/* Success Button */
.btn-success {
    background: linear-gradient(135deg, var(--success-500), var(--success-600));
    color: white;
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.4);
}

.btn-success:hover {
    background: linear-gradient(135deg, var(--success-600), var(--success-700));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(16, 185, 129, 0.5);
    color: white;
}

/* Danger Button */
.btn-danger {
    background: linear-gradient(135deg, var(--danger-500), var(--danger-600));
    color: white;
    box-shadow: 0 4px 14px 0 rgba(239, 68, 68, 0.4);
}

.btn-danger:hover {
    background: linear-gradient(135deg, var(--danger-600), var(--danger-700));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(239, 68, 68, 0.5);
    color: white;
}

/* Warning Button */
.btn-warning {
    background: linear-gradient(135deg, var(--warning-400), var(--warning-500));
    color: var(--neutral-900);
    box-shadow: 0 4px 14px 0 rgba(245, 158, 11, 0.4);
}

.btn-warning:hover {
    background: linear-gradient(135deg, var(--warning-500), var(--warning-600));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(245, 158, 11, 0.5);
    color: var(--neutral-900);
}

/* Info Button */
.btn-info {
    background: linear-gradient(135deg, var(--info-500), var(--info-600));
    color: white;
    box-shadow: 0 4px 14px 0 rgba(6, 182, 212, 0.4);
}

.btn-info:hover {
    background: linear-gradient(135deg, var(--info-600), var(--info-700));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(6, 182, 212, 0.5);
    color: white;
}

/* Secondary Button */
.btn-secondary {
    background: var(--neutral-200);
    color: var(--neutral-700);
}

.btn-secondary:hover {
    background: var(--neutral-300);
    color: var(--neutral-800);
    transform: translateY(-2px);
}

[data-theme="dark"] .btn-secondary {
    background: var(--neutral-700);
    color: var(--neutral-200);
}

[data-theme="dark"] .btn-secondary:hover {
    background: var(--neutral-600);
    color: var(--neutral-100);
}

/* Outline Buttons */
.btn-outline-primary {
    border: 2px solid var(--primary-500);
    color: var(--primary-600);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary-500);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.3);
}

.btn-outline-success {
    border: 2px solid var(--success-500);
    color: var(--success-600);
    background: transparent;
}

.btn-outline-success:hover {
    background: var(--success-500);
    color: white;
    transform: translateY(-2px);
}

.btn-outline-danger {
    border: 2px solid var(--danger-500);
    color: var(--danger-600);
    background: transparent;
}

.btn-outline-danger:hover {
    background: var(--danger-500);
    color: white;
    transform: translateY(-2px);
}

/* Ghost Button */
.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    background: var(--neutral-100);
    color: var(--text-primary);
}

[data-theme="dark"] .btn-ghost:hover {
    background: var(--neutral-700);
}

/* Icon Only Button */
.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: var(--radius-lg);
}

.btn-icon.btn-sm {
    width: 32px;
    height: 32px;
}

/* Button Sizes */
.btn-lg {
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--text-lg);
}

.btn-sm {
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--text-sm);
}

/* ============================================
   7. FORMS - REFINED INPUTS
   ============================================ */
.form-control,
.form-select {
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--text-base);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
    outline: none;
}

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

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
    font-size: var(--text-sm);
}

/* Input Group */
.input-group {
    position: relative;
}

.input-group .input-group-text {
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-right: none;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
    color: var(--text-secondary);
    padding: var(--spacing-3) var(--spacing-4);
}

.input-group .form-control {
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.input-group:focus-within .input-group-text {
    border-color: var(--primary-500);
    color: var(--primary-600);
}

/* Floating Label */
.form-floating>.form-control,
.form-floating>.form-select {
    height: calc(3.5rem + 4px);
    padding: 1rem var(--spacing-4);
}

.form-floating>label {
    padding: 1rem var(--spacing-4);
    color: var(--text-muted);
}

/* Checkbox & Radio */
.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.form-check-input:checked {
    background-color: var(--primary-500);
    border-color: var(--primary-500);
}

.form-check-input:focus {
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}

/* ============================================
   8. TABLES - MODERN DATA DISPLAY
   ============================================ */
.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--text-primary);
    border-collapse: separate;
    border-spacing: 0;
}

.table thead th {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: var(--text-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--spacing-4);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.table tbody td {
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    transition: background var(--transition-fast);
}

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

.table-hover tbody tr:hover {
    background: var(--primary-50);
}

[data-theme="dark"] .table-hover tbody tr:hover {
    background: var(--neutral-700);
}

.table tbody tr:hover td {
    border-color: transparent;
}

/* Striped rows */
.table-striped tbody tr:nth-of-type(odd) {
    background: var(--bg-tertiary);
}

/* Table Actions Column */
.table .actions-cell {
    white-space: nowrap;
    text-align: right;
}

.table .actions-cell .btn-group {
    display: inline-flex;
    gap: var(--spacing-1);
}

/* Clickable Row */
.table .clickable-row {
    cursor: pointer;
}

.table .clickable-row:hover {
    background: linear-gradient(90deg, var(--primary-50), transparent);
}

/* ============================================
   9. BADGES & TAGS
   ============================================ */
.badge {
    font-weight: 600;
    font-size: var(--text-xs);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge-primary {
    background: linear-gradient(135deg, var(--primary-100), var(--primary-200));
    color: var(--primary-700);
}

.badge-success {
    background: linear-gradient(135deg, var(--success-100), var(--success-200));
    color: var(--success-700);
}

.badge-warning {
    background: linear-gradient(135deg, var(--warning-100), var(--warning-200));
    color: var(--warning-700);
}

.badge-danger {
    background: linear-gradient(135deg, var(--danger-100), var(--danger-200));
    color: var(--danger-700);
}

.badge-info {
    background: linear-gradient(135deg, var(--info-100), var(--info-200));
    color: var(--info-700);
}

.badge-secondary {
    background: var(--neutral-200);
    color: var(--neutral-700);
}

/* Status Badges with icons */
.badge-status {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-1);
}

.badge-status::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* Animated Badge */
.badge-pulse {
    position: relative;
}

.badge-pulse::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-full);
    background: inherit;
    animation: badge-pulse 1.5s infinite;
    z-index: -1;
}

@keyframes badge-pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }

    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

/* ============================================
   10. ALERTS & NOTIFICATIONS
   ============================================ */
.alert {
    border: none;
    border-radius: var(--radius-xl);
    padding: var(--spacing-4) var(--spacing-5);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-3);
}

.alert-success {
    background: linear-gradient(135deg, var(--success-50), var(--success-100));
    color: var(--success-800);
    border-left: 4px solid var(--success-500);
}

.alert-danger {
    background: linear-gradient(135deg, var(--danger-50), var(--danger-100));
    color: var(--danger-800);
    border-left: 4px solid var(--danger-500);
}

.alert-warning {
    background: linear-gradient(135deg, var(--warning-50), var(--warning-100));
    color: var(--warning-800);
    border-left: 4px solid var(--warning-500);
}

.alert-info {
    background: linear-gradient(135deg, var(--info-50), var(--info-100));
    color: var(--info-800);
    border-left: 4px solid var(--info-500);
}

.alert-primary {
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    color: var(--primary-800);
    border-left: 4px solid var(--primary-500);
}

.alert .btn-close {
    filter: none;
    opacity: 0.5;
}

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

/* Dark mode alert overrides for visibility */
[data-theme="dark"] .alert-success {
    background: linear-gradient(135deg, rgba(16,185,129,0.08), rgba(16,185,129,0.06));
    color: var(--success-100);
    border-left-color: rgba(16,185,129,0.5);
}

[data-theme="dark"] .alert-danger {
    background: linear-gradient(135deg, rgba(239,68,68,0.08), rgba(239,68,68,0.06));
    color: var(--danger-100);
    border-left-color: rgba(239,68,68,0.5);
}

[data-theme="dark"] .alert-warning {
    background: linear-gradient(135deg, rgba(245,158,11,0.08), rgba(245,158,11,0.06));
    color: var(--warning-100);
    border-left-color: rgba(245,158,11,0.5);
}

[data-theme="dark"] .alert-info {
    background: linear-gradient(135deg, rgba(6,182,212,0.08), rgba(6,182,212,0.06));
    color: var(--info-100);
    border-left-color: rgba(6,182,212,0.5);
}

[data-theme="dark"] .alert-primary {
    background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(99,102,241,0.06));
    color: var(--primary-100);
    border-left-color: rgba(99,102,241,0.5);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: var(--spacing-6);
    right: var(--spacing-6);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-4);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    animation: slideInRight var(--transition-slow);
    max-width: 400px;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

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

.toast-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-lg);
    flex-shrink: 0;
}

.toast-success .toast-icon {
    background: var(--success-100);
    color: var(--success-600);
}

.toast-error .toast-icon {
    background: var(--danger-100);
    color: var(--danger-600);
}

/* ============================================
   11. MODALS - REFINED
   ============================================ */
.modal-content {
    border: none;
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    background: var(--bg-card);
    overflow: hidden;
}

.modal-header {
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-5);
}

.modal-title {
    font-weight: 700;
    font-size: var(--text-xl);
}

.modal-body {
    padding: var(--spacing-6);
}

.modal-footer {
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-4) var(--spacing-5);
    gap: var(--spacing-3);
}

.modal-backdrop {
    background: var(--neutral-900);
}

.modal-backdrop.show {
    opacity: 0.6;
}

/* Modal Animations */
.modal.fade .modal-dialog {
    transform: scale(0.9) translateY(-20px);
    transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.modal.show .modal-dialog {
    transform: scale(1) translateY(0);
}

/* Help Icon Animation: subtle tilt */
@keyframes tilt {
    from { transform: rotate(-12deg); }
    to { transform: rotate(12deg); }
}

.help-icon {
    display: inline-block;
    transform-origin: center;
    animation: tilt 2.4s ease-in-out infinite alternate;
    transition: transform 0.2s ease;
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
    .help-icon {
        animation: none !important;
    }
}

/* Manager Badge (profile) */
.manager-badge {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.manager-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    box-shadow: 0 6px 18px rgba(59,130,246,0.14);
}

/* Dark theme adjustment: maintain a vivid color */
[data-theme="dark"] .manager-circle {
    background: linear-gradient(135deg, #06b6d4, #0891b2); /* cyan-teal gradient for contrast */
    box-shadow: 0 6px 18px rgba(0,0,0,0.6);
}
/* Danger Modal Header */
.modal-header.modal-header-danger {
    background: linear-gradient(135deg, var(--danger-500), var(--danger-600));
    color: white;
}

.modal-header.modal-header-danger .btn-close {
    filter: brightness(0) invert(1);
}

/* ============================================
   12. LIST GROUPS - NOTIFICATION STYLE
   ============================================ */
.list-group {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.list-group-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: var(--spacing-4) var(--spacing-5);
    transition: all var(--transition-fast);
}

.list-group-item:first-child {
    border-top-left-radius: var(--radius-xl);
    border-top-right-radius: var(--radius-xl);
}

.list-group-item:last-child {
    border-bottom-left-radius: var(--radius-xl);
    border-bottom-right-radius: var(--radius-xl);
}

.list-group-item+.list-group-item {
    border-top: none;
}

.list-group-item:hover {
    background: var(--bg-tertiary);
}

.list-group-item-primary {
    background: linear-gradient(90deg, var(--primary-50), var(--bg-card));
    border-left: 4px solid var(--primary-500);
}

/* ============================================
   13. ACCORDIONS
   ============================================ */
.accordion-item {
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    margin-bottom: var(--spacing-2);
    border-radius: var(--radius-lg) !important;
    overflow: hidden;
}

.accordion-button {
    background: var(--bg-card);
    color: var(--text-primary);
    font-weight: 600;
    padding: var(--spacing-4);
    transition: all var(--transition-fast);
}

.accordion-button:not(.collapsed) {
    background: var(--primary-50);
    color: var(--primary-700);
    box-shadow: none;
}

[data-theme="dark"] .accordion-button:not(.collapsed) {
    background: var(--neutral-700);
    color: var(--primary-300);
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--primary-200);
}

.accordion-button::after {
    transition: transform var(--transition-fast);
}

.accordion-body {
    padding: var(--spacing-4);
    background: var(--bg-tertiary);
}

/* ============================================
   14. PROGRESS BARS
   ============================================ */
.progress {
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--neutral-200);
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary-500), var(--primary-400));
    border-radius: var(--radius-full);
    transition: width 0.6s ease;
}

.progress-bar-success {
    background: linear-gradient(90deg, var(--success-500), var(--success-400));
}

.progress-bar-warning {
    background: linear-gradient(90deg, var(--warning-500), var(--warning-400));
}

.progress-bar-danger {
    background: linear-gradient(90deg, var(--danger-500), var(--danger-400));
}

/* Animated Progress */
.progress-bar-animated {
    background-image: linear-gradient(45deg,
            rgba(255, 255, 255, 0.15) 25%,
            transparent 25%,
            transparent 50%,
            rgba(255, 255, 255, 0.15) 50%,
            rgba(255, 255, 255, 0.15) 75%,
            transparent 75%,
            transparent);
    background-size: 1rem 1rem;
    animation: progress-bar-stripes 1s linear infinite;
}

@keyframes progress-bar-stripes {
    from {
        background-position: 1rem 0;
    }

    to {
        background-position: 0 0;
    }
}

/* ============================================
   15. FOOTER
   ============================================ */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-4) 0;
}

.footer span {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

/* ============================================
   16. UTILITY CLASSES
   ============================================ */

/* Text Colors */
.text-primary {
    color: var(--primary-600) !important;
}

.text-success {
    color: var(--success-600) !important;
}

.text-warning {
    color: var(--warning-600) !important;
}

.text-danger {
    color: var(--danger-600) !important;
}

.text-info {
    color: var(--info-600) !important;
}

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

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

/* Background Colors */
.bg-primary-soft {
    background: var(--primary-50) !important;
}

.bg-success-soft {
    background: var(--success-50) !important;
}

.bg-warning-soft {
    background: var(--warning-50) !important;
}

.bg-danger-soft {
    background: var(--danger-50) !important;
}

.bg-info-soft {
    background: var(--info-50) !important;
}

/* Gradient Backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
}

.bg-gradient-success {
    background: linear-gradient(135deg, var(--success-400), var(--success-600));
}

/* Shadows */
.shadow-soft {
    box-shadow: var(--shadow-sm) !important;
}

.shadow-medium {
    box-shadow: var(--shadow-md) !important;
}

.shadow-strong {
    box-shadow: var(--shadow-lg) !important;
}

.shadow-colored {
    box-shadow: var(--shadow-colored) !important;
}

/* Border Utilities */
.border-primary {
    border-color: var(--primary-300) !important;
}

.border-success {
    border-color: var(--success-300) !important;
}

.border-warning {
    border-color: var(--warning-300) !important;
}

.border-danger {
    border-color: var(--danger-300) !important;
}

/* Hover Effects */
.hover-lift {
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-scale {
    transition: transform var(--transition-fast);
}

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

.hover-glow:hover {
    box-shadow: var(--shadow-glow);
}

/* Animation Classes */
.animate-fade-in {
    animation: fadeIn var(--transition-slow) forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.animate-slide-up {
    animation: slideUp var(--transition-slow) forwards;
}

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

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

.animate-scale-in {
    animation: scaleIn var(--transition-slow) forwards;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Staggered Animations */
.animate-stagger>* {
    animation: slideUp var(--transition-slow) forwards;
    opacity: 0;
}

.animate-stagger>*:nth-child(1) {
    animation-delay: 0ms;
}

.animate-stagger>*:nth-child(2) {
    animation-delay: 100ms;
}

.animate-stagger>*:nth-child(3) {
    animation-delay: 200ms;
}

.animate-stagger>*:nth-child(4) {
    animation-delay: 300ms;
}

.animate-stagger>*:nth-child(5) {
    animation-delay: 400ms;
}

.animate-stagger>*:nth-child(6) {
    animation-delay: 500ms;
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(90deg,
            var(--neutral-200) 0%,
            var(--neutral-100) 50%,
            var(--neutral-200) 100%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

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

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

.skeleton-text {
    height: 1em;
    margin-bottom: var(--spacing-2);
}

.skeleton-title {
    height: 1.5em;
    width: 60%;
    margin-bottom: var(--spacing-3);
}

.skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
}

/* ============================================
   17. DARK MODE TOGGLE
   ============================================ */
.theme-toggle {
    width: 50px;
    height: 26px;
    background: var(--neutral-300);
    border-radius: var(--radius-full);
    padding: 3px;
    cursor: pointer;
    transition: background var(--transition-fast);
    position: relative;
}

.theme-toggle::before {
    content: '☀️';
    position: absolute;
    left: 6px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
}

.theme-toggle::after {
    content: '🌙';
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
}

.theme-toggle-knob {
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast);
}

[data-theme="dark"] .theme-toggle {
    background: var(--primary-600);
}

[data-theme="dark"] .theme-toggle-knob {
    transform: translateX(24px);
}

/* ============================================
   18. LOGIN PAGE SPECIAL STYLES
   ============================================ */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-900) 100%);
    position: relative;
    overflow: hidden;
}

.login-wrapper::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
    animation: rotate 30s linear infinite;
}

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

    to {
        transform: rotate(360deg);
    }
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-2xl);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    width: 100%;
    max-width: 420px;
    overflow: hidden;
    position: relative;
    z-index: 1;
}

.login-header {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    padding: var(--spacing-8);
    text-align: center;
    color: white;
}

.login-header h4 {
    color: white;
    margin-bottom: var(--spacing-2);
}

.login-header p {
    opacity: 0.9;
    font-size: var(--text-sm);
}

.login-body {
    padding: var(--spacing-8);
}

.login-footer {
    background: var(--neutral-50);
    padding: var(--spacing-4);
    text-align: center;
    border-top: 1px solid var(--border-color);
}

/* ============================================
   19. EMPTY STATES
   ============================================ */
.empty-state {
    text-align: center;
    padding: var(--spacing-12);
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-100);
    border-radius: var(--radius-2xl);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-6);
    font-size: var(--text-4xl);
    color: var(--primary-500);
}

.empty-state-title {
    font-size: var(--text-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-2);
}

.empty-state-description {
    color: var(--text-secondary);
    max-width: 400px;
    margin: 0 auto var(--spacing-6);
}

/* ============================================
   20. RESPONSIVE ADJUSTMENTS
   ============================================ */
@media (max-width: 768px) {
    :root {
        --text-4xl: 1.875rem;
        --text-3xl: 1.5rem;
        --text-2xl: 1.25rem;
    }

    .container {
        padding-left: var(--spacing-4);
        padding-right: var(--spacing-4);
    }

    .card-body {
        padding: var(--spacing-4);
    }

    .table thead th,
    .table tbody td {
        padding: var(--spacing-3);
        font-size: var(--text-sm);
    }

    .btn {
        padding: var(--spacing-2) var(--spacing-3);
    }

    .modal-body {
        padding: var(--spacing-4);
    }

    .navbar .nav-link {
        padding: var(--spacing-2) var(--spacing-2) !important;
    }
}

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

    .navbar,
    .footer,
    .btn,
    .no-print {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* Accessibility: improve footer contrast on light theme */
[data-theme="light"] footer .text-muted {
    color: var(--text-secondary) !important; /* stronger contrast than text-muted */
}

[data-theme="light"] footer a {
    color: var(--primary-700) !important;
    text-decoration: underline;
}