/* ===== MAIN.CSS - AIRPORT MEETING PLACE CAFÉ & RENDEZVOUS ===== */

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

/* CSS Variables - Color Palette */
:root {
    /* Primary Colors */
    --color-primary: #946D46;          /* Nâu gỗ */
    --color-secondary: #C0A97C;        /* Nâu sáng */
    --color-accent: #2C2C2C;           /* Xám đen */
    
    /* Background Colors */
    --color-bg-primary: #F5F5F3;       /* Trắng ngà */
    --color-bg-secondary: #ECECEC;     /* Xám sáng */
    --color-bg-light: #DED9CE;         /* Be sáng */
    
    /* Text Colors */
    --color-text-primary: #2C2C2C;
    --color-text-secondary: #666666;
    --color-text-light: #999999;
    --color-white: #FFFFFF;
    
    /* Accent Colors */
    --color-green: #5C8A3A;            /* Xanh cây */
    --color-success: #28a745;
    --color-warning: #ffc107;
    --color-error: #dc3545;
    
    /* Typography */
    --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-display: 'Playfair Display', serif;
    
    /* Font Sizes */
    --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;
    --font-size-5xl: 3rem;
    
    /* Font Weights */
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    --spacing-5xl: 8rem;
    
    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Z-index */
    --z-index-dropdown: 1000;
    --z-index-modal: 1050;
    --z-index-tooltip: 1070;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
    font-size: 100%;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-display);
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

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

a:hover {
    color: var(--color-secondary);
}

/* Layout Components */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* Section Styles */
section {
    padding: var(--spacing-5xl) 0;
}

@media (max-width: 768px) {
    section {
        padding: var(--spacing-3xl) 0;
    }
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: 2px;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-base);
    }
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius-lg);
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(148, 109, 70, 0.25);
}

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

.btn-primary:hover {
    background-color: #7A5A37;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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



.btn-submit {
    background-color: var(--color-primary);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.btn-submit:hover {
    background-color: #7A5A37;
}

.btn-submit .btn-loading {
    display: none;
}

.btn-submit.loading .btn-text {
    display: none;
}

.btn-submit.loading .btn-loading {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

@media (max-width: 768px) {
    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
}

/* Card Components */
.card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-xl);
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* Utility Classes */
.text-center {
    text-align: center;
}

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

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

.hidden {
    display: none;
}

.visible {
    display: block;
}

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

/* Animations */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.fa-spin {
    animation: spin 1s linear infinite;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

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

.slide-in-left {
    animation: slideInLeft 0.5s ease-in-out;
}

.slide-in-right {
    animation: slideInRight 0.5s ease-in-out;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-secondary);
}

/* ===== RESTAURANTS SECTION (HOMEPAGE) ===== */
.restaurants-section {
    background-color: var(--color-white);
    position: relative;
}

.restaurants-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.restaurant-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-2xl);
    background-color: var(--color-white);
    border-radius: var(--border-radius-2xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    overflow: hidden;
    position: relative;
}

.restaurant-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.restaurant-card.card-right {
    flex-direction: row-reverse;
}

.restaurant-image {
    flex: 0 0 300px;
    height: 250px;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    position: relative;
}

.restaurant-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.restaurant-card:hover .restaurant-image img {
    transform: scale(1.05);
}

.restaurant-overlay {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.restaurant-cuisine {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background-color: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    backdrop-filter: blur(10px);
}

.restaurant-cuisine i {
    color: var(--color-primary);
}

.cuisine-japanese {
    color: #4ECDC4;
}

.cuisine-vietnamese {
    color: #FF6B6B;
}

.cuisine-thai {
    color: #95E1D3;
}

.cuisine-korean {
    color: #FFE66D;
}

.cuisine-chinese {
    color: #FFB74D;
}

.cuisine-indian {
    color: #A8E6CF;
}

.restaurant-content {
    flex: 1;
    padding: var(--spacing-lg);
}

.restaurant-name {
    font-family: var(--font-family-display);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.restaurant-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-xl);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.restaurant-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    font-size: var(--font-size-lg);
    transition: all var(--transition-normal);
}

.restaurant-link:hover {
    color: var(--color-secondary);
    gap: var(--spacing-md);
}

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

.restaurant-link:hover i {
    transform: translateX(4px);
}

.restaurants-view-all {
    text-align: center;
    margin-top: var(--spacing-4xl);
}

/* Responsive Design for Restaurants */
@media (max-width: 1024px) {
    .restaurant-card {
        flex-direction: column !important;
        text-align: center;
        gap: var(--spacing-xl);
    }
    
    .restaurant-image {
        flex: none;
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .restaurant-content {
        padding: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .restaurants-grid {
        gap: var(--spacing-xl);
    }
    
    .restaurant-card {
        padding: var(--spacing-lg);
        margin: 0 var(--spacing-sm);
    }
    
    .restaurant-image {
        height: 200px;
    }
    
    .restaurant-name {
        font-size: var(--font-size-2xl);
    }
    
    .restaurant-description {
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    .restaurant-card {
        padding: var(--spacing-md);
        margin: 0;
    }
    
    .restaurant-image {
        height: 180px;
    }
    
    .restaurant-name {
        font-size: var(--font-size-xl);
    }
}

/* Print Styles */
@media print {
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    a, a:visited {
        text-decoration: underline;
    }
    
    .btn {
        border: 1px solid black;
    }
} 

/* ===== SCROLL TO TOP BUTTON ===== */
#scrollToTopBtn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    z-index: 1000;
}

#scrollToTopBtn.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#scrollToTopBtn:hover {
    background-color: var(--color-primary-dark);
    transform: scale(1.1);
}

#scrollToTopBtn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.4);
}

/* ===== CTA SECTION STYLES ===== */
.cta-section {
    background-color: var(--color-bg-primary);
    padding: var(--spacing-4xl) 0;
    text-align: center;
    border-top: 1px solid var(--color-bg-light);
}

.cta-title {
    font-family: var(--font-family-display);
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
}

.cta-desc {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-3xl);
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.btn-cta-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border-radius: var(--border-radius-lg);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-lg);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    border: none;
    cursor: pointer;
}

.btn-cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--color-secondary), var(--color-primary));
}

.btn-cta-primary:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(148, 109, 70, 0.3);
}

.btn-cta-outline {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: transparent;
    color: var(--color-primary);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border: 2px solid var(--color-primary);
    border-radius: var(--border-radius-lg);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-lg);
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.btn-cta-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-cta-outline:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(148, 109, 70, 0.3);
}

/* Responsive Design for CTA */
@media (max-width: 768px) {
    .cta-section {
        padding: var(--spacing-3xl) 0;
    }
    
    .cta-title {
        font-size: var(--font-size-3xl);
    }
    
    .cta-desc {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-2xl);
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .btn-cta-primary,
    .btn-cta-outline {
        width: 100%;
        max-width: 300px;
        justify-content: center;
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    .cta-title {
        font-size: var(--font-size-2xl);
    }
    
    .cta-desc {
        font-size: var(--font-size-sm);
    }
    
    .btn-cta-primary,
    .btn-cta-outline {
        max-width: 280px;
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
}