/* ===================================
   QR Menu System - NuvexSoft
   Version: 1.0.0
   Author: NuvexSoft
   =================================== */

:root {
    /* Modern Color Palette */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --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;
    
    --secondary-color: #10b981;
    --secondary-dark: #059669;
    --secondary-light: #34d399;
    --secondary-50: #ecfdf5;
    --secondary-100: #d1fae5;
    --secondary-200: #a7f3d0;
    --secondary-300: #6ee7b7;
    --secondary-400: #34d399;
    --secondary-500: #10b981;
    --secondary-600: #059669;
    --secondary-700: #047857;
    --secondary-800: #065f46;
    --secondary-900: #064e3b;
    
    --accent-color: #f59e0b;
    --accent-dark: #d97706;
    --accent-light: #fbbf24;
    --accent-50: #fffbeb;
    --accent-100: #fef3c7;
    --accent-200: #fde68a;
    --accent-300: #fcd34d;
    --accent-400: #fbbf24;
    --accent-500: #f59e0b;
    --accent-600: #d97706;
    --accent-700: #b45309;
    --accent-800: #92400e;
    --accent-900: #78350f;
    
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    
    /* Light Mode Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    
    /* Text Colors */
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #6b7280;
    
    /* Border Colors */
    --border-primary: #e5e7eb;
    --border-secondary: #d1d5db;
    
    /* Shadow Colors */
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-color-dark: rgba(0, 0, 0, 0.2);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Advanced Spacing System */
    --spacing-0: 0;
    --spacing-1: 0.25rem;  /* 4px */
    --spacing-2: 0.5rem;   /* 8px */
    --spacing-3: 0.75rem;  /* 12px */
    --spacing-4: 1rem;     /* 16px */
    --spacing-5: 1.25rem;  /* 20px */
    --spacing-6: 1.5rem;   /* 24px */
    --spacing-7: 1.75rem;  /* 28px */
    --spacing-8: 2rem;     /* 32px */
    --spacing-9: 2.25rem;  /* 36px */
    --spacing-10: 2.5rem;  /* 40px */
    --spacing-11: 2.75rem; /* 44px */
    --spacing-12: 3rem;    /* 48px */
    --spacing-14: 3.5rem;  /* 56px */
    --spacing-16: 4rem;    /* 64px */
    --spacing-20: 5rem;    /* 80px */
    --spacing-24: 6rem;    /* 96px */
    --spacing-28: 7rem;    /* 112px */
    --spacing-32: 8rem;    /* 128px */
    --spacing-36: 9rem;    /* 144px */
    --spacing-40: 10rem;   /* 160px */
    --spacing-44: 11rem;   /* 176px */
    --spacing-48: 12rem;   /* 192px */
    --spacing-52: 13rem;   /* 208px */
    --spacing-56: 14rem;   /* 224px */
    --spacing-60: 15rem;   /* 240px */
    --spacing-64: 16rem;   /* 256px */
    --spacing-72: 18rem;   /* 288px */
    --spacing-80: 20rem;   /* 320px */
    --spacing-96: 24rem;   /* 384px */
    
    /* Advanced Border Radius System */
    --radius-none: 0;
    --radius-sm: 0.125rem;   /* 2px */
    --radius-md: 0.375rem;   /* 6px */
    --radius-lg: 0.5rem;     /* 8px */
    --radius-xl: 0.75rem;    /* 12px */
    --radius-2xl: 1rem;      /* 16px */
    --radius-3xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;
    
    /* Advanced Shadow System */
    --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-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
    --shadow-none: 0 0 #0000;
    
    /* Advanced Transition System */
    --transition-none: none;
    --transition-all: all 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-colors: color 150ms cubic-bezier(0.4, 0, 0.2, 1), background-color 150ms cubic-bezier(0.4, 0, 0.2, 1), border-color 150ms cubic-bezier(0.4, 0, 0.2, 1), text-decoration-color 150ms cubic-bezier(0.4, 0, 0.2, 1), fill 150ms cubic-bezier(0.4, 0, 0.2, 1), stroke 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-opacity: opacity 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-shadow: box-shadow 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-transform: transform 150ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Legacy Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Animation Durations */
    --duration-75: 75ms;
    --duration-100: 100ms;
    --duration-150: 150ms;
    --duration-200: 200ms;
    --duration-300: 300ms;
    --duration-500: 500ms;
    --duration-700: 700ms;
    --duration-1000: 1000ms;
    
    /* Animation Easing */
    --ease-linear: linear;
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================================
   Dark Mode Variables
   =================================== */

/* Dark mode styles moved to dark-mode.css */

/* ===================================
   Reset & Base Styles
   =================================== */

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

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* ===================================
   Typography
   =================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.25;
    margin-bottom: var(--spacing-4);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-4);
    color: var(--gray-600);
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    border: 2px solid transparent;
    border-radius: var(--radius-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-all);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    user-select: none;
    line-height: 1.5;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--duration-500);
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    transform: scale(0.98);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.3);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

/* ===================================
   Advanced Button Variants
   =================================== */

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
    color: var(--white);
    border-color: var(--primary-500);
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    border-color: var(--primary-600);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-500) 0%, var(--secondary-600) 100%);
    color: var(--white);
    border-color: var(--secondary-500);
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.3);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--secondary-600) 0%, var(--secondary-700) 100%);
    border-color: var(--secondary-600);
    box-shadow: 0 6px 20px 0 rgba(16, 185, 129, 0.4);
    transform: translateY(-2px);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-500) 0%, var(--accent-600) 100%);
    color: var(--white);
    border-color: var(--accent-500);
    box-shadow: 0 4px 14px 0 rgba(245, 158, 11, 0.3);
}

.btn-accent:hover {
    background: linear-gradient(135deg, var(--accent-600) 0%, var(--accent-700) 100%);
    border-color: var(--accent-600);
    box-shadow: 0 6px 20px 0 rgba(245, 158, 11, 0.4);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--primary-500);
    border-color: var(--primary-500);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--primary-500);
    color: var(--white);
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.3);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--gray-600);
    border-color: transparent;
    box-shadow: none;
}

.btn-ghost:hover {
    background: var(--gray-100);
    color: var(--gray-800);
    transform: translateY(-1px);
}

.btn-soft {
    background: var(--primary-50);
    color: var(--primary-700);
    border-color: var(--primary-200);
    box-shadow: none;
}

.btn-soft:hover {
    background: var(--primary-100);
    color: var(--primary-800);
    border-color: var(--primary-300);
    transform: translateY(-1px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #dc2626 100%);
    color: var(--white);
    border-color: var(--danger-color);
    box-shadow: 0 4px 14px 0 rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    border-color: #dc2626;
    box-shadow: 0 6px 20px 0 rgba(239, 68, 68, 0.4);
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%);
    color: var(--white);
    border-color: var(--success-color);
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
    border-color: #059669;
    box-shadow: 0 6px 20px 0 rgba(16, 185, 129, 0.4);
    transform: translateY(-2px);
}

/* ===================================
   Button Sizes
   =================================== */

.btn-xs {
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-md);
}

.btn-sm {
    padding: var(--spacing-2) var(--spacing-4);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-lg);
}

.btn-md {
    padding: var(--spacing-3) var(--spacing-6);
    font-size: var(--font-size-base);
    border-radius: var(--radius-xl);
}

.btn-lg {
    padding: var(--spacing-4) var(--spacing-8);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-2xl);
}

.btn-xl {
    padding: var(--spacing-5) var(--spacing-10);
    font-size: var(--font-size-xl);
    border-radius: var(--radius-3xl);
}

/* ===================================
   Button States
   =================================== */

.btn-loading {
    position: relative;
    color: transparent;
}

.btn-loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.btn-icon {
    padding: var(--spacing-2);
    min-width: 40px;
    height: 40px;
}

.btn-icon.btn-sm {
    min-width: 32px;
    height: 32px;
    padding: var(--spacing-1);
}

.btn-icon.btn-lg {
    min-width: 48px;
    height: 48px;
    padding: var(--spacing-3);
}

/* ===================================
   Button Groups
   =================================== */

.btn-group {
    display: inline-flex;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.btn-group .btn {
    border-radius: 0;
    border-right-width: 0;
    margin: 0;
}

.btn-group .btn:first-child {
    border-top-left-radius: var(--radius-xl);
    border-bottom-left-radius: var(--radius-xl);
}

.btn-group .btn:last-child {
    border-top-right-radius: var(--radius-xl);
    border-bottom-right-radius: var(--radius-xl);
    border-right-width: 2px;
}

.btn-group .btn:hover {
    z-index: 1;
}

/* ===================================
   Cards
   =================================== */

/* ===================================
   Advanced Card System
   =================================== */

.card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: all var(--transition-all);
    overflow: hidden;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-500), var(--secondary-500));
    opacity: 0;
    transition: opacity var(--duration-300);
}

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

.card:hover::before {
    opacity: 1;
}

.card-header {
    padding: var(--spacing-6);
    border-bottom: 1px solid var(--gray-200);
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
    position: relative;
}

.card-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: var(--spacing-6);
    right: var(--spacing-6);
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gray-200), transparent);
}

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

.card-footer {
    padding: var(--spacing-6);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* Card Variants */
.card-elevated {
    box-shadow: var(--shadow-lg);
}

.card-elevated:hover {
    box-shadow: var(--shadow-2xl);
}

.card-bordered {
    border-width: 2px;
    border-color: var(--primary-200);
}

.card-bordered:hover {
    border-color: var(--primary-400);
}

.card-gradient {
    background: linear-gradient(135deg, var(--primary-50) 0%, var(--secondary-50) 100%);
    border: none;
}

.card-glass {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Card Sizes */
.card-sm .card-header,
.card-sm .card-body,
.card-sm .card-footer {
    padding: var(--spacing-4);
}

.card-lg .card-header,
.card-lg .card-body,
.card-lg .card-footer {
    padding: var(--spacing-8);
}

.card-xl .card-header,
.card-xl .card-body,
.card-xl .card-footer {
    padding: var(--spacing-10);
}

/* Card Interactive */
.card-interactive {
    cursor: pointer;
}

.card-interactive:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: var(--shadow-2xl);
}

/* Card Loading */
.card-loading {
    position: relative;
    overflow: hidden;
}

.card-loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: shimmer var(--duration-1500) infinite;
}

.card-footer {
    padding: var(--spacing-6);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

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

.form-group {
    margin-bottom: var(--spacing-6);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-2);
}

.form-control {
    width: 100%;
    padding: var(--spacing-3) var(--spacing-4);
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-xl);
    font-size: var(--font-size-base);
    transition: all var(--transition-all);
    background: var(--white);
    position: relative;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-1px);
}

/* .form-control:invalid {
    border-color: var(--danger-color);
} */

.form-control:disabled {
    background: var(--gray-100);
    color: var(--gray-500);
    cursor: not-allowed;
}

.form-control::placeholder {
    color: var(--gray-400);
}

.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 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--spacing-3) center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: var(--spacing-10);
}

/* ===================================
   Badges
   =================================== */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-1) var(--spacing-3);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.badge-secondary {
    background: var(--secondary-color);
    color: var(--white);
}

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

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

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

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

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

.alert {
    padding: var(--spacing-4);
    border-radius: var(--radius-lg);
    border: 1px solid;
    margin-bottom: var(--spacing-6);
}

.alert-success {
    background: rgb(16 185 129 / 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

.alert-warning {
    background: rgb(245 158 11 / 0.1);
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.alert-danger {
    background: rgb(239 68 68 / 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.alert-info {
    background: rgb(6 182 212 / 0.1);
    border-color: var(--info-color);
    color: var(--info-color);
}

/* ===================================
   Tables
   =================================== */

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

.table th,
.table td {
    padding: var(--spacing-4);
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    font-weight: 600;
    color: var(--gray-700);
    background: var(--gray-50);
}

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

/* ===================================
   Modals
   =================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgb(0 0 0 / 0.5);
    z-index: 1050;
    backdrop-filter: blur(4px);
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-dialog {
    width: 100%;
    max-width: 500px;
    margin: var(--spacing-4);
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-header {
    padding: var(--spacing-6);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.modal-footer {
    padding: var(--spacing-6);
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: var(--spacing-3);
    justify-content: flex-end;
}

/* ===================================
   Utilities
   =================================== */

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

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }
.text-muted { color: var(--gray-500); }

.bg-primary { background-color: var(--primary-color); }
.bg-secondary { background-color: var(--secondary-color); }
.bg-success { background-color: var(--success-color); }
.bg-warning { background-color: var(--warning-color); }
.bg-danger { background-color: var(--danger-color); }
.bg-white { background-color: var(--white); }

/* ===================================
   Advanced Utility Classes
   =================================== */

/* Display */
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.d-grid { display: grid; }
.d-table { display: table; }
.d-table-cell { display: table-cell; }
.d-table-row { display: table-row; }

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.flex-1 { flex: 1 1 0%; }
.flex-auto { flex: 1 1 auto; }
.flex-initial { flex: 0 1 auto; }
.flex-none { flex: none; }

/* Grid */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

/* Gap */
.gap-0 { gap: var(--spacing-0); }
.gap-1 { gap: var(--spacing-1); }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }
.gap-5 { gap: var(--spacing-5); }
.gap-6 { gap: var(--spacing-6); }
.gap-8 { gap: var(--spacing-8); }
.gap-10 { gap: var(--spacing-10); }
.gap-12 { gap: var(--spacing-12); }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.static { position: static; }

/* Z-Index */
.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }
.z-auto { z-index: auto; }

/* Overflow */
.overflow-auto { overflow: auto; }
.overflow-hidden { overflow: hidden; }
.overflow-visible { overflow: visible; }
.overflow-scroll { overflow: scroll; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-default { cursor: default; }
.cursor-not-allowed { cursor: not-allowed; }
.cursor-wait { cursor: wait; }
.cursor-text { cursor: text; }
.cursor-move { cursor: move; }

/* User Select */
.select-none { user-select: none; }
.select-text { user-select: text; }
.select-all { user-select: all; }
.select-auto { user-select: auto; }

/* Pointer Events */
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }

/* Visibility */
.visible { visibility: visible; }
.invisible { visibility: hidden; }

/* Opacity */
.opacity-0 { opacity: 0; }
.opacity-25 { opacity: 0.25; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* Transform */
.transform { transform: translateX(0) translateY(0) rotate(0) skewX(0) skewY(0) scaleX(1) scaleY(1); }
.transform-gpu { transform: translate3d(0, 0, 0); }
.scale-0 { transform: scale(0); }
.scale-50 { transform: scale(0.5); }
.scale-75 { transform: scale(0.75); }
.scale-90 { transform: scale(0.9); }
.scale-95 { transform: scale(0.95); }
.scale-100 { transform: scale(1); }
.scale-105 { transform: scale(1.05); }
.scale-110 { transform: scale(1.1); }
.scale-125 { transform: scale(1.25); }
.scale-150 { transform: scale(1.5); }

/* Rotate */
.rotate-0 { transform: rotate(0deg); }
.rotate-1 { transform: rotate(1deg); }
.rotate-2 { transform: rotate(2deg); }
.rotate-3 { transform: rotate(3deg); }
.rotate-6 { transform: rotate(6deg); }
.rotate-12 { transform: rotate(12deg); }
.rotate-45 { transform: rotate(45deg); }
.rotate-90 { transform: rotate(90deg); }
.rotate-180 { transform: rotate(180deg); }

/* Translate */
.translate-x-0 { transform: translateX(0); }
.translate-x-1 { transform: translateX(var(--spacing-1)); }
.translate-x-2 { transform: translateX(var(--spacing-2)); }
.translate-x-3 { transform: translateX(var(--spacing-3)); }
.translate-x-4 { transform: translateX(var(--spacing-4)); }
.translate-x-5 { transform: translateX(var(--spacing-5)); }
.translate-x-6 { transform: translateX(var(--spacing-6)); }
.translate-x-8 { transform: translateX(var(--spacing-8)); }
.translate-x-10 { transform: translateX(var(--spacing-10)); }
.translate-x-12 { transform: translateX(var(--spacing-12)); }

.translate-y-0 { transform: translateY(0); }
.translate-y-1 { transform: translateY(var(--spacing-1)); }
.translate-y-2 { transform: translateY(var(--spacing-2)); }
.translate-y-3 { transform: translateY(var(--spacing-3)); }
.translate-y-4 { transform: translateY(var(--spacing-4)); }
.translate-y-5 { transform: translateY(var(--spacing-5)); }
.translate-y-6 { transform: translateY(var(--spacing-6)); }
.translate-y-8 { transform: translateY(var(--spacing-8)); }
.translate-y-10 { transform: translateY(var(--spacing-10)); }
.translate-y-12 { transform: translateY(var(--spacing-12)); }

/* Skew */
.skew-x-0 { transform: skewX(0deg); }
.skew-x-1 { transform: skewX(1deg); }
.skew-x-2 { transform: skewX(2deg); }
.skew-x-3 { transform: skewX(3deg); }
.skew-x-6 { transform: skewX(6deg); }
.skew-x-12 { transform: skewX(12deg); }

.skew-y-0 { transform: skewY(0deg); }
.skew-y-1 { transform: skewY(1deg); }
.skew-y-2 { transform: skewY(2deg); }
.skew-y-3 { transform: skewY(3deg); }
.skew-y-6 { transform: skewY(6deg); }
.skew-y-12 { transform: skewY(12deg); }

/* Border Radius */
.rounded-none { border-radius: var(--radius-none); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-3xl { border-radius: var(--radius-3xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Border Width */
.border-0 { border-width: 0px; }
.border-2 { border-width: 2px; }
.border-4 { border-width: 4px; }
.border-8 { border-width: 8px; }

/* Border Style */
.border-solid { border-style: solid; }
.border-dashed { border-style: dashed; }
.border-dotted { border-style: dotted; }
.border-double { border-style: double; }
.border-none { border-style: none; }

/* Shadow */
.shadow-none { box-shadow: var(--shadow-none); }
.shadow-xs { box-shadow: var(--shadow-xs); }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-2xl { box-shadow: var(--shadow-2xl); }
.shadow-inner { box-shadow: var(--shadow-inner); }

.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-end { justify-content: flex-end; }

.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }
.align-items-end { align-items: flex-end; }

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

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.m-0 { margin: 0; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.ml-0 { margin-left: 0; }
.mr-0 { margin-right: 0; }

.p-0 { padding: 0; }
.pt-0 { padding-top: 0; }
.pb-0 { padding-bottom: 0; }
.pl-0 { padding-left: 0; }
.pr-0 { padding-right: 0; }

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

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-4);
    }
    
    .card-body {
        padding: var(--spacing-4);
    }
    
    .modal-dialog {
        margin: var(--spacing-2);
    }
    
    .btn {
        padding: var(--spacing-2) var(--spacing-4);
        font-size: var(--font-size-xs);
    }
}

@media (max-width: 480px) {
    h1 { font-size: var(--font-size-3xl); }
    h2 { font-size: var(--font-size-2xl); }
    h3 { font-size: var(--font-size-xl); }
    
    .card-body {
        padding: var(--spacing-3);
    }
}

/* ===================================
   Animations
   =================================== */

/* ===================================
   Advanced Animation System
   =================================== */

@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes fadeInUp {
    from { 
        opacity: 0; 
        transform: translateY(30px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes fadeInDown {
    from { 
        opacity: 0; 
        transform: translateY(-30px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes fadeInLeft {
    from { 
        opacity: 0; 
        transform: translateX(-30px); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0); 
    }
}

@keyframes fadeInRight {
    from { 
        opacity: 0; 
        transform: translateX(30px); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0); 
    }
}

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

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

@keyframes slideInDown {
    from { 
        transform: translateY(-100%); 
        opacity: 0; 
    }
    to { 
        transform: translateY(0); 
        opacity: 1; 
    }
}

@keyframes scaleIn {
    from { 
        opacity: 0; 
        transform: scale(0.9); 
    }
    to { 
        opacity: 1; 
        transform: scale(1); 
    }
}

@keyframes scaleOut {
    from { 
        opacity: 1; 
        transform: scale(1); 
    }
    to { 
        opacity: 0; 
        transform: scale(0.9); 
    }
}

@keyframes rotateIn {
    from { 
        opacity: 0; 
        transform: rotate(-200deg); 
    }
    to { 
        opacity: 1; 
        transform: rotate(0); 
    }
}

@keyframes bounceIn {
    0% { 
        opacity: 0; 
        transform: scale(0.3); 
    }
    50% { 
        opacity: 1; 
        transform: scale(1.05); 
    }
    70% { 
        transform: scale(0.9); 
    }
    100% { 
        opacity: 1; 
        transform: scale(1); 
    }
}

@keyframes pulse {
    0%, 100% { 
        opacity: 1; 
        transform: scale(1); 
    }
    50% { 
        opacity: 0.8; 
        transform: scale(1.05); 
    }
}

@keyframes shimmer {
    0% { 
        background-position: -200px 0; 
    }
    100% { 
        background-position: calc(200px + 100%) 0; 
    }
}

@keyframes float {
    0%, 100% { 
        transform: translateY(0px); 
    }
    50% { 
        transform: translateY(-10px); 
    }
}

@keyframes glow {
    0%, 100% { 
        box-shadow: 0 0 5px rgba(99, 102, 241, 0.5); 
    }
    50% { 
        box-shadow: 0 0 20px rgba(99, 102, 241, 0.8); 
    }
}

/* ===================================
   Animation Classes
   =================================== */

.fade-in {
    animation: fadeIn var(--duration-500) var(--ease-out);
}

.fade-in-up {
    animation: fadeInUp var(--duration-500) var(--ease-out);
}

.fade-in-down {
    animation: fadeInDown var(--duration-500) var(--ease-out);
}

.fade-in-left {
    animation: fadeInLeft var(--duration-500) var(--ease-out);
}

.fade-in-right {
    animation: fadeInRight var(--duration-500) var(--ease-out);
}

.slide-in {
    animation: slideIn var(--duration-300) var(--ease-out);
}

.slide-in-up {
    animation: slideInUp var(--duration-300) var(--ease-out);
}

.slide-in-down {
    animation: slideInDown var(--duration-300) var(--ease-out);
}

.scale-in {
    animation: scaleIn var(--duration-300) var(--ease-out);
}

.scale-out {
    animation: scaleOut var(--duration-300) var(--ease-out);
}

.rotate-in {
    animation: rotateIn var(--duration-500) var(--ease-out);
}

.bounce-in {
    animation: bounceIn var(--duration-700) var(--ease-out);
}

.pulse {
    animation: pulse var(--duration-2000) var(--ease-in-out) infinite;
}

.shimmer {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    background-size: 200px 100%;
    animation: shimmer var(--duration-1500) infinite;
}

.float {
    animation: float var(--duration-3000) var(--ease-in-out) infinite;
}

.glow {
    animation: glow var(--duration-2000) var(--ease-in-out) infinite;
}

/* Animation Delays */
.delay-75 { animation-delay: var(--duration-75); }
.delay-100 { animation-delay: var(--duration-100); }
.delay-150 { animation-delay: var(--duration-150); }
.delay-200 { animation-delay: var(--duration-200); }
.delay-300 { animation-delay: var(--duration-300); }
.delay-500 { animation-delay: var(--duration-500); }
.delay-700 { animation-delay: var(--duration-700); }
.delay-1000 { animation-delay: var(--duration-1000); }

/* Animation Durations */
.duration-75 { animation-duration: var(--duration-75); }
.duration-100 { animation-duration: var(--duration-100); }
.duration-150 { animation-duration: var(--duration-150); }
.duration-200 { animation-duration: var(--duration-200); }
.duration-300 { animation-duration: var(--duration-300); }
.duration-500 { animation-duration: var(--duration-500); }
.duration-700 { animation-duration: var(--duration-700); }
.duration-1000 { animation-duration: var(--duration-1000); }

/* Hover Animations */
.hover-scale:hover {
    transform: scale(1.05);
    transition: transform var(--duration-200) var(--ease-out);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    transition: all var(--duration-200) var(--ease-out);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
    transition: box-shadow var(--duration-200) var(--ease-out);
}

.hover-rotate:hover {
    transform: rotate(5deg);
    transition: transform var(--duration-200) var(--ease-out);
}

/* Stagger Animations */
.stagger-1 { animation-delay: calc(var(--duration-100) * 1); }
.stagger-2 { animation-delay: calc(var(--duration-100) * 2); }
.stagger-3 { animation-delay: calc(var(--duration-100) * 3); }
.stagger-4 { animation-delay: calc(var(--duration-100) * 4); }
.stagger-5 { animation-delay: calc(var(--duration-100) * 5); }

/* ===================================
   Loading Spinner
   =================================== */

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===================================
   NuvexSoft Branding
   =================================== */

.nuvexsoft-brand {
    font-weight: 700;
    color: var(--primary-color);
}

.nuvexsoft-footer {
    text-align: center;
    padding: var(--spacing-8);
    color: var(--gray-500);
    font-size: var(--font-size-sm);
}

.nuvexsoft-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.nuvexsoft-footer a:hover {
    text-decoration: underline;
}

/* Dark mode styles moved to dark-mode.css */