/**
 * Unified Design System
 * Shared styles for Customer Menu, Admin Dashboard, and Restaurant Dashboard
 */

:root {
    /* Colors - Primary Palette */
    --color-bg: #fafafa;
    --color-surface: #ffffff;
    --color-border: #e5e5e5;
    
    /* Colors - Text */
    --color-text: #1a1a1a;
    --color-text-secondary: #666666;
    --color-text-muted: #999999;
    
    /* Colors - Status */
    --color-success: #28a745;
    --color-success-bg: #d4edda;
    --color-success-text: #155724;
    
    --color-warning: #ffc107;
    --color-warning-bg: #fff3cd;
    --color-warning-text: #856404;
    
    --color-danger: #dc3545;
    --color-danger-bg: #f8d7da;
    --color-danger-text: #721c24;
    
    --color-info: #17a2b8;
    --color-info-bg: #d1ecf1;
    --color-info-text: #0c5460;
    
    /* Colors - Neutral Status */
    --color-neutral-bg: #e9ecef;
    --color-neutral-text: #6c757d;
    
    /* Colors - Primary Action */
    --color-primary: #2c2c2c;
    --color-primary-hover: #1a1a1a;
    
    /* Spacing System - Premium Rhythm */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    
    /* Typography - Modern, Premium */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-base: 15px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 28px;
    --font-size-3xl: 36px;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.65;
    --line-height-loose: 1.75;
    
    /* Borders */
    --border-width: 1px;
    --border-radius-sm: 6px;
    --border-radius-md: 10px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* Shadows - Premium, Subtle */
    --shadow-none: none;
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.10);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* Base Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg);
    color: var(--color-text);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography Scale */
.text-xs {
    font-size: var(--font-size-xs);
    line-height: var(--line-height-normal);
}

.text-sm {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
}

.text-base {
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
}

.text-md {
    font-size: var(--font-size-md);
    line-height: var(--line-height-relaxed);
}

.text-lg {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
}

.text-xl {
    font-size: var(--font-size-xl);
    line-height: var(--line-height-tight);
}

.text-2xl {
    font-size: var(--font-size-2xl);
    line-height: var(--line-height-tight);
}

.text-3xl {
    font-size: var(--font-size-3xl);
    line-height: var(--line-height-tight);
    letter-spacing: -0.5px;
}

.font-normal {
    font-weight: var(--font-weight-normal);
}

.font-medium {
    font-weight: var(--font-weight-medium);
}

.font-semibold {
    font-weight: var(--font-weight-semibold);
}

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

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

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: var(--border-width) solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    cursor: pointer;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    box-shadow: var(--shadow-xs);
}

.btn:hover {
    background: var(--color-bg);
    border-color: var(--color-text-secondary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-xs);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-surface);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

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

.btn-primary:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.btn-danger {
    background: var(--color-surface);
    color: var(--color-danger);
    border-color: var(--color-danger);
    box-shadow: var(--shadow-xs);
}

.btn-danger:hover {
    background: #fff5f5;
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.btn-danger:active {
    transform: translateY(0);
    box-shadow: var(--shadow-xs);
}

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1;
}

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

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

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

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

.badge-neutral {
    background: var(--color-neutral-bg);
    color: var(--color-neutral-text);
}

/* Status Indicators (larger, for prominent display) */
.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-medium);
    line-height: 1;
}

.status-indicator-success {
    background: var(--color-success-bg);
    color: var(--color-success-text);
}

.status-indicator-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning-text);
}

.status-icon {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
}

.status-icon-small {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
}

/* Cards / Surfaces */
.card {
    background: var(--color-surface);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius-lg);
}

.card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: var(--border-width) solid var(--color-border);
}

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

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: var(--border-width) solid var(--color-border);
}

/* Sections */
.section {
    margin-bottom: var(--spacing-lg);
}

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

.section-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    letter-spacing: -0.2px;
}

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

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

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

.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-surface);
    transition: border-color 0.15s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

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

.table th {
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
    border-bottom: 2px solid var(--color-border);
}

.table td {
    padding: var(--spacing-md);
    border-bottom: var(--border-width) solid var(--color-border);
    vertical-align: middle;
}

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

.table tr:hover {
    background: #f8f9fa;
}

/* Utilities */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

.container-menu {
    max-width: 680px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

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

.text-uppercase {
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Loading & Empty States */
.loading {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
}

.error {
    padding: var(--spacing-md);
    background: var(--color-danger-bg);
    color: var(--color-danger-text);
    border: var(--border-width) solid var(--color-danger);
    border-radius: var(--border-radius-md);
}

.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-text-secondary);
}

/* Mobile Responsive */
@media (max-width: 640px) {
    .container,
    .container-narrow,
    .container-menu {
        padding: var(--spacing-md) var(--spacing-sm);
    }
    
    .text-3xl {
        font-size: var(--font-size-2xl);
    }
    
    .text-2xl {
        font-size: var(--font-size-xl);
    }
    
    .text-xl {
        font-size: var(--font-size-lg);
    }
}

/* ===================================================
   Customer Menu - Futuristic Visual Theme (CSS Only)
   Scoped to menu template via .menu-container
   =================================================== */

body .menu-container {
    position: relative;
    z-index: 1;
    background: transparent;
}

body .menu-container::before,
body .menu-container::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

body .menu-container::before {
    background-image:
        radial-gradient(circle at 20% 10%, rgba(255, 255, 255, 0.06), transparent 45%),
        radial-gradient(circle at 85% 15%, rgba(255, 255, 255, 0.04), transparent 50%),
        repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.03) 1px, transparent 1px, transparent 100px),
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.03) 1px, transparent 1px, transparent 100px);
    background-color: #000000;
}

body .menu-container::after {
    background: radial-gradient(circle, rgba(0, 0, 0, 0) 35%, rgba(0, 0, 0, 0.85) 100%);
}

body .menu-container,
body .menu-container * {
    color: #ffffff;
}

body .menu-container .menu-header {
    text-align: center;
}

body .menu-container .menu-title {
    font-weight: 300;
    letter-spacing: 6px;
    text-transform: uppercase;
    background: linear-gradient(90deg, #ffffff, rgba(255, 255, 255, 0.6));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

body .menu-container .restaurant-subheader {
    font-size: 0.75rem;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: #555555;
}

body .menu-container .section-title {
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.7);
    position: relative;
    padding-bottom: 12px;
}

body .menu-container .section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 140px;
    height: 1px;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.8), transparent);
    transform: scaleX(0.7);
    transform-origin: left;
    transition: transform 200ms ease;
}

body .menu-container .section-title:hover::after {
    transform: scaleX(1);
}

body .menu-container .section-item {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.01));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0;
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
    transition: box-shadow 200ms ease, border-color 200ms ease, background 200ms ease;
    transform: none;
}

body .menu-container .section-item.is-active,
body .menu-container .section-item.is-dim {
    transform: none;
    opacity: 1;
}

body .menu-container .section-item:hover {
    border-color: rgba(255, 255, 255, 0.25);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.02));
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.45);
}

body .menu-container .section-item-name {
    font-weight: 500;
    color: #ffffff;
}

body .menu-container .section-item-arrow {
    color: rgba(255, 255, 255, 0.6);
}

body .menu-container .btn-back {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: rgba(255, 255, 255, 0.8);
    border-radius: 0;
}

body .menu-container .item {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 0;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
    padding: var(--spacing-xl);
    transform: none;
    transition: border-color 200ms ease, box-shadow 200ms ease;
    position: relative;
}

body .menu-container .item.is-active,
body .menu-container .item.is-dim {
    transform: none;
    opacity: 1;
}

body .menu-container .item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 20px;
    bottom: 20px;
    width: 2px;
    background: rgba(255, 255, 255, 0.2);
    opacity: 0;
    transition: opacity 200ms ease;
}

body .menu-container .item:hover::before {
    opacity: 1;
}

body .menu-container .item:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.5);
}

body .menu-container .item-name,
body .menu-container .item-price,
body .menu-container .item-description {
    color: rgba(255, 255, 255, 0.85);
}

body .menu-container .item-description {
    color: rgba(255, 255, 255, 0.55);
}

body .menu-container .item-action {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: rgba(255, 255, 255, 0.75);
    border-radius: 0;
}

@media (max-width: 768px) {
    body .menu-container .menu-title {
        letter-spacing: 4px;
        font-size: 2.25rem;
    }

    body .menu-container .section-item,
    body .menu-container .item {
        padding: var(--spacing-lg);
    }
}