/* ============================================
   RESTANET - Modern Restaurant Management System
   Color Scheme: Red & Yellow (High Impact)
   WCAG AA Compliant Contrasts
   ============================================ */

:root {
    /* Primary Colors - Bold Restaurant Branding */
    --brand-red: #C41E3A;           /* Primary Red - Cardinal */
    --brand-red-dark: #8B0000;      /* Dark Red - Hover/Active */
    --brand-red-light: #DC3545;     /* Light Red - Accents */
    --brand-red-soft: #F8D7DA;      /* Soft Red - Backgrounds */
    
    --brand-yellow: #F4A900;        /* Primary Yellow - Amber */
    --brand-yellow-dark: #CC8800;   /* Dark Yellow - Hover/Active */
    --brand-yellow-light: #FFC107;  /* Light Yellow - Accents */
    --brand-yellow-soft: #FFF3CD;   /* Soft Yellow - Backgrounds */
    
    /* Neutral Colors */
    --neutral-900: #1A1A1A;
    --neutral-800: #2D2D2D;
    --neutral-700: #4A4A4A;
    --neutral-600: #6B6B6B;
    --neutral-500: #8C8C8C;
    --neutral-400: #ABABAB;
    --neutral-300: #D4D4D4;
    --neutral-200: #E8E8E8;
    --neutral-100: #F5F5F5;
    --neutral-50: #FAFAFA;
    --white: #FFFFFF;
    
    /* Semantic Colors */
    --success: #28A745;
    --success-soft: #D4EDDA;
    --warning: #FFC107;
    --warning-soft: #FFF3CD;
    --danger: #DC3545;
    --danger-soft: #F8D7DA;
    --info: #17A2B8;
    --info-soft: #D1ECF1;
    
    /* Shadows & Effects */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
    --shadow-brand: 0 4px 16px rgba(196, 30, 58, 0.25);
    --shadow-yellow: 0 4px 16px rgba(244, 169, 0, 0.25);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.35s ease;
    --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ============================================
   BASE STYLES
   ============================================ */

* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--neutral-100) 0%, var(--neutral-50) 100%);
    color: var(--neutral-800);
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--neutral-900);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.5em;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p, small {
    color: var(--neutral-700);
}

.text-muted,
small.text-muted {
    color: var(--neutral-500) !important;
}

a {
    color: var(--brand-red);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--brand-red-dark);
    text-decoration: underline;
}

main {
    flex: 1;
}

/* Font Awesome Fix */
[class^="fa-"], [class*=" fa-"] {
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}
.fa-regular { font-weight: 400; }
.fa-brands { font-family: 'Font Awesome 6 Brands'; font-weight: 400; }

/* ============================================
   NAVBAR - Modern Gradient with Glass Effect
   ============================================ */

.navbar {
    background: linear-gradient(135deg, var(--brand-red) 0%, var(--brand-red-dark) 50%, var(--neutral-900) 100%);
    box-shadow: var(--shadow-lg);
    padding: 0.75rem 0;
    position: relative;
    z-index: 1000;
}

.navbar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-yellow), var(--brand-yellow-light), var(--brand-yellow));
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--white) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform var(--transition-normal);
}

.navbar-brand:hover {
    transform: scale(1.02);
    text-decoration: none;
}

.navbar-brand i {
    color: var(--brand-yellow);
    filter: drop-shadow(0 0 8px rgba(244, 169, 0, 0.5));
}

.navbar .nav-link {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    position: relative;
}

.navbar .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--brand-yellow);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.navbar .nav-link:hover::after,
.navbar .nav-link.active::after {
    width: 80%;
}

.navbar .nav-link.active,
.navbar .nav-link:hover {
    color: var(--brand-yellow);
    background: rgba(255, 255, 255, 0.1);
}

.navbar .nav-link i {
    transition: transform var(--transition-normal);
}

.navbar .nav-link:hover i {
    transform: scale(1.15);
}

/* Cart Badge */
.navbar .badge {
    background: var(--brand-yellow) !important;
    color: var(--neutral-900);
    font-weight: 700;
    font-size: 0.7rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.1); }
}

/* ============================================
   CARDS - Modern Elevated Design
   ============================================ */

.card {
    background: var(--white);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    overflow: hidden;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-red), var(--brand-yellow));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

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

.card-body {
    padding: 1.5rem;
}

.card-header {
    background: linear-gradient(135deg, var(--neutral-100) 0%, var(--white) 100%);
    border-bottom: 1px solid var(--neutral-200);
    padding: 1rem 1.5rem;
    font-weight: 600;
}

.card-footer {
    background: var(--neutral-50);
    border-top: 1px solid var(--neutral-200);
    padding: 1rem 1.5rem;
}

/* Shadow Soft - Custom Class */
.shadow-soft {
    box-shadow: var(--shadow-md);
}

/* ============================================
   BUTTONS - Modern with Gradients & Effects
   ============================================ */

.btn {
    font-weight: 600;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    border: none;
    position: relative;
    overflow: hidden;
}

.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(--transition-slow);
}

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

/* Primary Button - Red */
.btn-brand {
    color: var(--white);
    background: linear-gradient(135deg, var(--brand-red) 0%, var(--brand-red-dark) 100%);
    box-shadow: var(--shadow-brand);
}

.btn-brand:hover {
    background: linear-gradient(135deg, var(--brand-red-dark) 0%, var(--brand-red) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(196, 30, 58, 0.35);
    color: var(--white);
}

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

/* Accent Button - Yellow */
.btn-accent {
    color: var(--neutral-900);
    background: linear-gradient(135deg, var(--brand-yellow) 0%, var(--brand-yellow-dark) 100%);
    box-shadow: var(--shadow-yellow);
}

.btn-accent:hover {
    background: linear-gradient(135deg, var(--brand-yellow-light) 0%, var(--brand-yellow) 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(244, 169, 0, 0.35);
    color: var(--neutral-900);
}

/* Outline Variants */
.btn-outline-primary {
    color: var(--brand-red);
    border: 2px solid var(--brand-red);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--brand-red);
    color: var(--white);
    border-color: var(--brand-red);
}

.btn-outline-secondary {
    color: var(--neutral-600);
    border: 2px solid var(--neutral-300);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--neutral-200);
    color: var(--neutral-800);
    border-color: var(--neutral-400);
}

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

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

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

.btn-outline-success:hover {
    background: var(--success);
    color: var(--white);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #c82333 100%);
    color: var(--white);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #c82333 0%, var(--danger) 100%);
    transform: translateY(-2px);
    color: var(--white);
}

/* Button Sizes */
.btn-sm {
    padding: 0.4rem 0.9rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.8rem 1.75rem;
    font-size: 1.1rem;
}

/* Disabled State */
.btn.disabled, .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ============================================
   BADGES - Modern Pills
   ============================================ */

.badge {
    font-weight: 600;
    padding: 0.4em 0.8em;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    letter-spacing: 0.02em;
}

.badge-rol {
    background: linear-gradient(135deg, var(--brand-red), var(--brand-red-dark));
    color: var(--white);
}

.text-bg-warning {
    background: var(--brand-yellow) !important;
    color: var(--neutral-900) !important;
}

.text-bg-success {
    background: var(--success) !important;
    color: var(--white) !important;
}

.text-bg-danger {
    background: var(--danger) !important;
    color: var(--white) !important;
}

.text-bg-secondary {
    background: var(--neutral-600) !important;
    color: var(--white) !important;
}

.text-bg-info {
    background: var(--info) !important;
    color: var(--white) !important;
}

/* ============================================
   FOOTER - Elegant Gradient
   ============================================ */

.gradient-footer {
    background: linear-gradient(135deg, var(--neutral-900) 0%, var(--brand-red-dark) 50%, var(--brand-red) 100%);
    color: var(--white);
    position: relative;
    margin-top: auto;
}

.gradient-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--brand-yellow), var(--brand-yellow-light), var(--brand-yellow));
}

/* Gradient Navbar alias */
.gradient-navbar {
    background: linear-gradient(135deg, var(--brand-red) 0%, var(--brand-red-dark) 50%, var(--neutral-900) 100%);
}

/* ============================================
   TABLES - Modern Clean Design
   ============================================ */

.table {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 0;
}

.table thead th {
    background: linear-gradient(135deg, var(--brand-red-soft) 0%, var(--brand-yellow-soft) 100%);
    color: var(--neutral-800);
    font-weight: 700;
    border-bottom: 2px solid var(--brand-red);
    padding: 1rem;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

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

.table tbody tr:hover {
    background: var(--brand-yellow-soft);
}

.table tbody td {
    padding: 0.875rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--neutral-200);
}

.table-striped tbody tr:nth-of-type(odd) {
    background: var(--neutral-50);
}

.table-striped tbody tr:nth-of-type(odd):hover {
    background: var(--brand-yellow-soft);
}

.table-responsive {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    background: var(--white);
}

/* ============================================
   FORMS - Modern Inputs
   ============================================ */

.form-control {
    border: 2px solid var(--neutral-300);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    transition: all var(--transition-normal);
    font-size: 1rem;
}

.form-control:focus {
    border-color: var(--brand-red);
    box-shadow: 0 0 0 4px rgba(196, 30, 58, 0.15);
    outline: none;
}

.form-control:hover:not(:focus) {
    border-color: var(--neutral-400);
}

.form-label {
    font-weight: 600;
    color: var(--neutral-700);
    margin-bottom: 0.5rem;
}

.form-label i {
    color: var(--brand-red);
}

.form-select {
    border: 2px solid var(--neutral-300);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    transition: all var(--transition-normal);
}

.form-select:focus {
    border-color: var(--brand-red);
    box-shadow: 0 0 0 4px rgba(196, 30, 58, 0.15);
}

/* ============================================
   ALERTS - Modern Notifications
   ============================================ */

.alert {
    border: none;
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-sm);
}

.alert::before {
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 1.25rem;
}

.alert-danger {
    background: var(--danger-soft);
    color: #721c24;
    border-left: 4px solid var(--danger);
}

.alert-danger::before {
    content: '\f06a';
    color: var(--danger);
}

.alert-success {
    background: var(--success-soft);
    color: #155724;
    border-left: 4px solid var(--success);
}

.alert-success::before {
    content: '\f058';
    color: var(--success);
}

.alert-warning {
    background: var(--warning-soft);
    color: #856404;
    border-left: 4px solid var(--warning);
}

.alert-warning::before {
    content: '\f071';
    color: var(--warning);
}

.alert-info {
    background: var(--info-soft);
    color: #0c5460;
    border-left: 4px solid var(--info);
}

.alert-info::before {
    content: '\f05a';
    color: var(--info);
}

/* ============================================
   TOAST - Timeout Warning
   ============================================ */

.toast {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
}

/* ============================================
   RESPONSIVE NAVBAR
   ============================================ */

@media (max-width: 991px) {
    .navbar-collapse {
        background: linear-gradient(135deg, var(--neutral-900) 0%, var(--brand-red-dark) 100%);
        padding: 1rem;
        border-radius: var(--radius-lg);
        margin-top: 0.75rem;
        box-shadow: var(--shadow-lg);
    }
    
    .navbar .nav-link {
        padding: 0.75rem 1rem !important;
        font-size: 1rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .navbar .nav-link:last-child {
        border-bottom: none;
    }
    
    .navbar .nav-link::after {
        display: none;
    }
    
    .navbar-toggler {
        border: 2px solid var(--brand-yellow);
        padding: 0.5rem;
    }
    
    .navbar-toggler:focus {
        box-shadow: 0 0 0 3px rgba(244, 169, 0, 0.25);
    }
    
    .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%23F4A900' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    }
}

/* ============================================
   MESA GRID - Restaurant Tables
   ============================================ */

.mesa-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.mesa-card {
    padding: 1.25rem;
    border: 2px solid var(--neutral-200);
    border-radius: var(--radius-lg);
    background: var(--white);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.mesa-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    transition: background var(--transition-normal);
}

.mesa-card.ocupada {
    border-color: rgba(220, 53, 69, 0.3);
}

.mesa-card.ocupada::before {
    background: var(--danger);
}

.mesa-card.disponible {
    border-color: rgba(40, 167, 69, 0.3);
}

.mesa-card.disponible::before {
    background: var(--success);
}

.mesa-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.mesa-card header h3 {
    font-size: 1.1rem;
    margin: 0;
    color: var(--neutral-800);
}

.mesa-card__estado .badge {
    font-size: 0.8rem;
    padding: 0.5em 1em;
}

/* ============================================
   DASHBOARD CARDS - Icon Styling
   ============================================ */

.card .fa-2x {
    transition: all var(--transition-normal);
}

.card:hover .fa-2x {
    transform: scale(1.15);
}

.card .text-primary {
    color: var(--brand-red) !important;
}

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

.card .text-warning {
    color: var(--brand-yellow) !important;
}

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

/* ============================================
   UTILITY CLASSES
   ============================================ */

.bg-gradient-brand {
    background: linear-gradient(135deg, var(--brand-red) 0%, var(--brand-yellow) 100%);
}

.text-brand {
    color: var(--brand-red);
}

.text-accent {
    color: var(--brand-yellow);
}

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

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

/* ============================================
   ANIMATIONS & MICRO-INTERACTIONS
   ============================================ */

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

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

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

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.animate-slide-left {
    animation: slideInLeft 0.5s ease forwards;
}

.animate-slide-right {
    animation: slideInRight 0.5s ease forwards;
}

.animate-scale {
    animation: scaleIn 0.4s ease forwards;
}

/* Staggered animations for lists */
.row > [class*="col-"]:nth-child(1) { animation-delay: 0.05s; }
.row > [class*="col-"]:nth-child(2) { animation-delay: 0.1s; }
.row > [class*="col-"]:nth-child(3) { animation-delay: 0.15s; }
.row > [class*="col-"]:nth-child(4) { animation-delay: 0.2s; }
.row > [class*="col-"]:nth-child(5) { animation-delay: 0.25s; }
.row > [class*="col-"]:nth-child(6) { animation-delay: 0.3s; }

/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--neutral-200) 25%, var(--neutral-100) 50%, var(--neutral-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--neutral-100);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--brand-red), var(--brand-red-dark));
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--brand-red-dark);
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .navbar, footer, .btn, .toast {
        display: none !important;
    }
    
    body {
        background: white;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* ============================================
   ACCESSIBILITY IMPROVEMENTS
   ============================================ */

:focus-visible {
    outline: 3px solid var(--brand-yellow);
    outline-offset: 2px;
}

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

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

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn-brand {
        background: var(--brand-red);
        border: 2px solid var(--white);
    }
    
    .card {
        border: 2px solid var(--neutral-800);
    }
}