@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400..900;1,400..900&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --font-primary: 'Playfair Display', serif;
    --font-secondary: 'Inter', sans-serif;
    
    /* Color System - Italian Restaurant Red Palette */
    --color-background: #FEFEFE;
    --color-background-section: #FFFFFF;
    --color-background-alt: #FDF9F9;
    --color-text-primary: #2C2C2C;
    --color-text-secondary: #6B6B6B;
    --color-text-muted: #9B9B9B;
    --color-accent: #C41E3A; /* Italian red */
    --color-accent-light: #E53E3E;
    --color-accent-dark: #9B1C2C;
    --color-border: #E8E8E8;
    --color-border-light: #F5F5F5;
    
    /* Semantic Colors */
    --color-success: #22C55E;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #3B82F6;
    
    /* Navigation Colors */
    --color-nav-bg: #FFFFFF;
    --color-nav-border: var(--color-border);
    --color-nav-text: var(--color-text-secondary);
    --color-nav-active: var(--color-accent);
    --color-nav-hover: var(--color-background-alt);
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Spacing System (8px base) */
    --space-1: 0.25rem; /* 4px */
    --space-2: 0.5rem;  /* 8px */
    --space-3: 0.75rem; /* 12px */
    --space-4: 1rem;    /* 16px */
    --space-5: 1.25rem; /* 20px */
    --space-6: 1.5rem;  /* 24px */
    --space-8: 2rem;    /* 32px */
    --space-10: 2.5rem; /* 40px */
    --space-12: 3rem;   /* 48px */
    --space-16: 4rem;   /* 64px */
    --space-20: 5rem;   /* 80px */
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Typography Scale */
    --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;
    --text-5xl: 3rem;
    
    /* Line Heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

body {
    font-family: var(--font-secondary);
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: var(--leading-normal);
    font-size: var(--text-base);
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

/* Welcome Screen Styles */
.welcome-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh; /* Dynamic viewport height for mobile */
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: var(--transition-slow);
    padding: var(--space-4);
}

.welcome-screen.hidden {
    opacity: 0;
    visibility: hidden;
    transform: translateY(-100%);
}

.welcome-content {
    text-align: center;
    color: white;
    max-width: 500px;
    width: 100%;
    position: relative;
    z-index: 2;
}

.welcome-logo h1 {
    font-family: var(--font-primary);
    font-size: clamp(2.5rem, 12vw, 5rem);
    font-weight: 700;
    margin-bottom: var(--space-2);
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    letter-spacing: 2px;
    animation: fadeInUp 1s ease-out;
}

.logo-subtitle {
    font-family: var(--font-primary);
    font-size: clamp(1rem, 4vw, 1.25rem);
    font-style: italic;
    opacity: 0.9;
    margin-bottom: var(--space-6);
    letter-spacing: 1px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.welcome-description {
    margin-bottom: var(--space-8);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.welcome-description p {
    font-size: clamp(0.875rem, 3.5vw, 1.125rem);
    line-height: var(--leading-relaxed);
    opacity: 0.95;
    margin: 0 auto;
}

.welcome-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
    align-items: center;
}

.welcome-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    border: none;
    border-radius: var(--radius-xl);
    font-family: var(--font-secondary);
    font-size: clamp(0.875rem, 3.5vw, 1rem);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-normal);
    width: 100%;
    max-width: 280px;
    min-height: 56px;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 1s ease-out both;
    -webkit-tap-highlight-color: transparent;
}

.welcome-btn:nth-child(1) {
    animation-delay: 0.6s;
}

.welcome-btn:nth-child(2) {
    animation-delay: 0.8s;
}

.welcome-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: var(--transition-normal);
}

.welcome-btn:hover::before,
.welcome-btn:active::before {
    left: 100%;
}

.welcome-btn.primary {
    background: white;
    color: var(--color-accent);
    box-shadow: var(--shadow-lg);
}

.welcome-btn.primary:hover,
.welcome-btn.primary:active {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    background: #f8f8f8;
}

.welcome-btn.secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.welcome-btn.secondary:hover,
.welcome-btn.secondary:active {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.welcome-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    opacity: 0.9;
}

.info-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: clamp(0.75rem, 3vw, 0.875rem);
    animation: fadeInUp 1s ease-out both;
}

.info-item:nth-child(1) {
    animation-delay: 1s;
}

.info-item:nth-child(2) {
    animation-delay: 1.2s;
}

.info-item i {
    opacity: 0.8;
    flex-shrink: 0;
}

.welcome-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(1deg); }
}

/* Menu App Styles */
.menu-app {
    transition: var(--transition-slow);
    padding-top: 100px;
}

.menu-app.hidden {
    display: none;
}

/* Header Styles - Mobile First */
header {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
    color: white;
    padding: var(--space-3) var(--space-4);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
    gap: var(--space-3);
    position: relative;
}

.back-btn {
    position: absolute;
    left: 0;
    top: 0;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: var(--space-3);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: var(--text-base);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}

.back-btn:hover,
.back-btn:active {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

header h1 {
    font-family: var(--font-primary);
    font-size: clamp(1.25rem, 5vw, 2rem);
    font-weight: 700;
    letter-spacing: 0.5px;
    margin: 0;
    text-align: center;
    position: relative;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header h1::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, transparent, white, transparent);
    margin: var(--space-2) auto 0;
    border-radius: var(--radius-full);
}

/* Search Container - Mobile Optimized */
.search-container {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-2) var(--space-3);
    width: 100%;
    max-width: 350px;
    transition: var(--transition-normal);
    min-height: 44px; /* Touch-friendly minimum */
}

.search-container:focus-within {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

#menu-search {
    background: transparent;
    border: none;
    color: white;
    padding: var(--space-2);
    flex-grow: 1;
    font-family: var(--font-secondary);
    font-size: var(--text-sm);
    font-weight: 400;
    min-height: 40px;
}

#menu-search::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

#menu-search:focus {
    outline: none;
}

#search-button,
#search-clear {
    background: transparent;
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--space-2);
    font-size: var(--text-sm);
    opacity: 0.8;
    transition: var(--transition-fast);
    border-radius: var(--radius-md);
    min-width: 40px;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}

#search-button:hover,
#search-clear:hover,
#search-button:active,
#search-clear:active {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
}

#search-clear {
    display: none;
}

/* Menu Legend - Mobile Optimized */
.menu-legend {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-4);
    margin: 0 auto;
    max-width: 1200px;
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    background: var(--color-background-alt);
    border-bottom: 1px solid var(--color-border);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: 500;
}

.legend-item i {
    color: var(--color-accent);
    font-size: var(--text-sm);
}

/* Navigation - Mobile First with Perfect Horizontal Scroll */
nav#menu-nav {
    background: var(--color-nav-bg);
    border-bottom: 1px solid var(--color-nav-border);
    position: sticky;
    top: 100px;
    z-index: 999;
    box-shadow: var(--shadow-sm);
    /* Perfect horizontal scroll for mobile */
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
    scroll-behavior: smooth;
    scroll-snap-type: x proximity;
    /* Ensure content doesn't get cut off */
    padding: 0;
}

nav#menu-nav::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

nav#menu-nav ul {
    list-style: none;
    display: flex;
    padding: 0 var(--space-2);
    margin: 0;
    gap: var(--space-1);
    /* Critical for horizontal scroll */
    width: max-content;
    min-width: 100%;
    /* Ensure proper alignment */
    align-items: center;
}

nav#menu-nav ul li {
    flex-shrink: 0;
    white-space: nowrap;
    scroll-snap-align: start;
}

nav#menu-nav ul li a {
    display: flex;
    text-decoration: none;
    color: var(--color-nav-text);
    font-family: var(--font-secondary);
    font-weight: 500;
    font-size: var(--text-xs);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    transition: var(--transition-fast);
    position: relative;
    white-space: nowrap;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
    /* Ensure minimum touch target for mobile */
    min-width: 80px;
    text-align: center;
}

nav#menu-nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition-normal);
    transform: translateX(-50%);
}

nav#menu-nav ul li a:hover,
nav#menu-nav ul li a:active {
    color: var(--color-accent);
    background: var(--color-nav-hover);
}

nav#menu-nav ul li a:hover::after,
nav#menu-nav ul li a:active::after {
    width: 80%;
}

nav#menu-nav ul li a.active {
    color: var(--color-accent);
    font-weight: 600;
    background: var(--color-background);
}

nav#menu-nav ul li a.active::after {
    width: 100%;
}

/* Main Content - Mobile Optimized */
main#menu-content {
    padding: var(--space-4);
    max-width: 1200px;
    margin: 0 auto;
}

/* Menu Sections - Mobile First */
.menu-section {
    margin-bottom: var(--space-8);
    padding: var(--space-4);
    background: var(--color-background-section);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    scroll-margin-top: 120px;
    opacity: 1;
    transform: translateY(0);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.menu-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--color-accent), var(--color-accent-light));
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.section-hidden {
    opacity: 0;
    transform: translateY(30px);
}

.menu-section h2 {
    font-family: var(--font-primary);
    color: var(--color-text-primary);
    font-size: clamp(1.25rem, 5vw, 1.875rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

.menu-section h2::after {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    margin: var(--space-2) auto 0;
    border-radius: var(--radius-full);
    transition: var(--transition-normal);
}

.menu-section h3 {
    font-family: var(--font-primary);
    color: var(--color-text-primary);
    font-size: clamp(1rem, 4vw, 1.25rem);
    font-weight: 600;
    margin-top: var(--space-6);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 1px dashed var(--color-border);
}

/* Menu Items - Mobile Optimized */
.menu-item {
    margin-bottom: var(--space-4);
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
    position: relative;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    min-height: 60px;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.menu-item:hover,
.menu-item:active {
    background: var(--color-background-alt);
    transform: translateX(2px);
    box-shadow: var(--shadow-sm);
}

.menu-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.item-details {
    flex-grow: 1;
}

.item-name {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: clamp(0.875rem, 4vw, 1.125rem);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    line-height: var(--leading-tight);
}

.vegetarian-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    background: var(--color-success);
    color: white;
    font-size: 10px;
    font-weight: 600;
    flex-shrink: 0;
}

.item-description {
    font-size: clamp(0.75rem, 3.5vw, 0.875rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
    font-style: italic;
    line-height: var(--leading-relaxed);
}

.item-price {
    font-family: var(--font-secondary);
    font-weight: 700;
    font-size: clamp(0.875rem, 4vw, 1.125rem);
    color: var(--color-accent);
    align-self: flex-start;
    transition: var(--transition-fast);
}

.item-options {
    width: 100%;
    margin-top: var(--space-3);
    padding-left: var(--space-4);
    border-left: 2px solid var(--color-border);
}

.item-options div {
    display: block;
    font-size: clamp(0.75rem, 3vw, 0.875rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
    position: relative;
    padding-left: var(--space-3);
    line-height: var(--leading-relaxed);
}

.item-options div::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-accent);
    font-weight: 600;
}

.item-options div strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

.section-notes,
.item-notes {
    font-size: clamp(0.75rem, 3vw, 0.875rem);
    color: var(--color-text-secondary);
    margin-top: var(--space-3);
    padding: var(--space-3);
    background: var(--color-background-alt);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    line-height: var(--leading-relaxed);
}

/* Search Results - Mobile Optimized */
.search-results-container {
    background: var(--color-background-section);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border);
    padding: var(--space-4);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-md);
    animation: fadeIn 0.3s ease forwards;
}

.search-results-container.hidden {
    display: none;
}

.search-results-container h2 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    font-family: var(--font-primary);
    font-size: clamp(1.125rem, 4.5vw, 1.5rem);
}

#close-search {
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: var(--text-lg);
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    min-width: 40px;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: transparent;
}

#close-search:hover,
#close-search:active {
    color: var(--color-accent);
    background: var(--color-background-alt);
    transform: scale(1.1);
}

.search-result-item {
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
    margin-bottom: var(--space-3);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.search-result-item:hover,
.search-result-item:active {
    background: var(--color-background-alt);
    transform: translateX(2px);
    box-shadow: var(--shadow-sm);
}

.result-name {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: clamp(0.875rem, 4vw, 1.125rem);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.result-category {
    font-size: clamp(0.625rem, 2.5vw, 0.75rem);
    color: var(--color-accent);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-2);
}

.result-description {
    font-size: clamp(0.75rem, 3vw, 0.875rem);
    color: var(--color-text-secondary);
    font-style: italic;
    margin-bottom: var(--space-2);
    line-height: var(--leading-relaxed);
}

.result-price {
    font-weight: 700;
    color: var(--color-accent);
    font-size: clamp(0.875rem, 3.5vw, 1rem);
}

.highlight {
    background: rgba(196, 30, 58, 0.2);
    padding: 0 var(--space-1);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.no-results {
    text-align: center;
    color: var(--color-text-muted);
    font-style: italic;
    padding: var(--space-6);
    font-size: clamp(0.875rem, 3.5vw, 1rem);
}

/* Modal Styles - Mobile Optimized */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    height: 100dvh;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    backdrop-filter: blur(5px);
    transition: var(--transition-normal);
    padding: var(--space-4);
}

.modal-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.modal-content {
    background: var(--color-background-section);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    max-height: 90dvh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        transform: translateY(-50px) scale(0.9);
        opacity: 0;
    }
    to {
        transform: translateY(0) scale(1);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-background-alt);
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
    position: sticky;
    top: 0;
    z-index: 1;
}

.modal-title {
    font-family: var(--font-primary);
    font-size: clamp(1.125rem, 4.5vw, 1.5rem);
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex: 1;
    padding-right: var(--space-2);
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: var(--text-xl);
    padding: var(--space-2);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    -webkit-tap-highlight-color: transparent;
}

.modal-close:hover,
.modal-close:active {
    color: var(--color-accent);
    background: var(--color-background);
    transform: scale(1.1);
}

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

.modal-description {
    font-size: clamp(0.875rem, 3.5vw, 1.125rem);
    color: var(--color-text-secondary);
    font-style: italic;
    margin-bottom: var(--space-4);
    line-height: var(--leading-relaxed);
}

.modal-price {
    font-family: var(--font-secondary);
    font-weight: 700;
    font-size: clamp(1.25rem, 5vw, 1.5rem);
    color: var(--color-accent);
    margin-bottom: var(--space-6);
}

.modal-options h4 {
    font-family: var(--font-primary);
    font-size: clamp(1rem, 4vw, 1.125rem);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--space-2);
}

.modal-option {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-3);
    background: var(--color-background-alt);
    border: 1px solid var(--color-border-light);
}

.option-name {
    font-weight: 600;
    color: var(--color-text-primary);
    font-size: clamp(0.875rem, 3.5vw, 1rem);
}

.option-description {
    font-size: clamp(0.75rem, 3vw, 0.875rem);
    color: var(--color-text-secondary);
    font-style: italic;
}

.option-price {
    font-weight: 700;
    color: var(--color-accent);
    font-size: clamp(0.875rem, 3.5vw, 1.125rem);
}

.modal-notes {
    font-size: clamp(0.75rem, 3vw, 0.875rem);
    color: var(--color-text-secondary);
    font-style: italic;
    padding: var(--space-3);
    background: var(--color-background-alt);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-top: var(--space-4);
}

/* Back to Top Button - Mobile Optimized */
#back-to-top {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    width: 52px;
    height: 52px;
    font-size: var(--text-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px) scale(0.8);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
    z-index: 99;
    -webkit-tap-highlight-color: transparent;
}

#back-to-top.visible {
    opacity: 0.9;
    transform: translateY(0) scale(1);
}

#back-to-top:hover,
#back-to-top:active {
    opacity: 1;
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-xl);
    background: var(--color-accent-dark);
}

/* Footer - Mobile Optimized */
footer {
    background: var(--color-text-primary);
    color: var(--color-background);
    padding: var(--space-8) var(--space-4);
    margin-top: var(--space-12);
    border-top: 1px solid var(--color-border);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-info {
    margin-bottom: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-info p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: clamp(0.75rem, 3vw, 0.875rem);
    line-height: var(--leading-relaxed);
}

.footer-info p i {
    color: var(--color-accent);
    opacity: 0.8;
    flex-shrink: 0;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: var(--color-background);
    font-size: var(--text-lg);
    border-radius: var(--radius-full);
    background: rgba(255, 255, 255, 0.1);
    transition: var(--transition-fast);
    -webkit-tap-highlight-color: transparent;
}

.footer-social a:hover,
.footer-social a:active {
    background: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.copyright {
    font-size: clamp(0.75rem, 3vw, 0.875rem);
    opacity: 0.7;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--space-4);
}

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

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

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

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

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

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

/* Focus States for Accessibility */
*:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Responsive Design - Desktop Enhancements */
@media (min-width: 768px) {
    .menu-app {
        padding-top: 140px;
    }
    
    header {
        padding: var(--space-6) var(--space-4);
    }
    
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        gap: var(--space-4);
    }
    
    .back-btn {
        position: absolute;
        left: 0;
        top: 50%;
        transform: translateY(-50%);
    }
    
    .search-container {
        max-width: 320px;
    }
    
    .menu-legend {
        justify-content: center;
        font-size: var(--text-sm);
    }
    
    nav#menu-nav {
        top: 140px;
        overflow-x: visible;
        overflow-y: visible;
        scroll-snap-type: none;
    }
    
    nav#menu-nav ul {
        justify-content: center;
        width: auto;
        min-width: auto;
        padding: 0 var(--space-4);
    }
    
    nav#menu-nav ul li a {
        font-size: var(--text-sm);
        padding: var(--space-4) var(--space-5);
        min-width: auto;
    }
    
    main#menu-content {
        padding: var(--space-8) var(--space-4);
    }
    
    .menu-section {
        padding: var(--space-10);
        margin-bottom: var(--space-16);
        scroll-margin-top: 180px;
    }
    
    .menu-section::before {
        width: 4px;
    }
    
    .menu-section:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg);
    }
    
    .menu-item {
        flex-direction: row;
        align-items: flex-start;
        gap: var(--space-4);
        padding: var(--space-5);
        margin-bottom: var(--space-6);
    }
    
    .item-details {
        padding-right: var(--space-4);
    }
    
    .item-price {
        align-self: flex-start;
        flex-shrink: 0;
    }
    
    .menu-item:hover .item-price {
        transform: scale(1.05);
        color: var(--color-accent-dark);
    }
    
    .welcome-buttons {
        flex-direction: row;
        justify-content: center;
    }
    
    .welcome-info {
        flex-direction: row;
        justify-content: center;
    }
    
    #back-to-top {
        width: 56px;
        height: 56px;
        bottom: var(--space-8);
        right: var(--space-8);
    }
    
    .modal-content {
        max-width: 600px;
        max-height: 80vh;
    }
    
    .modal-header {
        padding: var(--space-6);
    }
    
    .modal-body {
        padding: var(--space-6);
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --color-background: #FFFFFF;
        --color-text-primary: #000000;
        --color-text-secondary: #333333;
        --color-accent: #C41E3A;
        --color-border: #666666;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .bg-pattern {
        animation: none;
    }
}

/* iOS Safari specific fixes */
@supports (-webkit-touch-callout: none) {
    .welcome-screen {
        height: -webkit-fill-available;
    }
    
    .modal-overlay {
        height: -webkit-fill-available;
    }
    
    .modal-content {
        max-height: 85vh;
        max-height: 85dvh;
    }
}

/* Android Chrome specific fixes */
@media screen and (max-width: 767px) {
    .menu-section {
        border-radius: var(--radius-lg);
    }
    
    .menu-item {
        border-radius: var(--radius-md);
    }
    
    .search-container {
        border-radius: var(--radius-lg);
    }
}