:root {
    /* Color Palette */
    --color-primary-accent: #A98C51;
    --color-secondary-accent: #3A5A40;
    --color-primary-text: #2C3E50;
    --color-background-light: #F9F7F3;
    --color-neutral-grey: #7F8C8D;
    --color-warm-brown: #8B4513;
    --color-dark-background: #2C3E50; /* Using primary text for dark backgrounds */
    --color-light-text: #F9F7F3;

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Roboto', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --section-padding: 5rem 0;

    /* Border Radius */
    --border-radius: 8px;

    /* Transitions */
    --transition-speed: 0.3s ease-in-out;
}

/* Base Styles & Reset */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px; /* Base for rem units */
}

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

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

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-primary-text);
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 2rem;
    font-weight: 700;
}

h2 {
    font-size: 1.8rem;
    font-weight: 600;
}

h3 {
    font-size: 1.4rem;
    font-weight: 500;
}

p {
    margin-bottom: var(--spacing-sm);
}

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section-padding {
    padding: var(--section-padding);
}

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

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

.bg-light {
    background-color: var(--color-background-light);
}

.bg-dark {
    background-color: var(--color-dark-background);
    color: var(--color-light-text);
}

.bg-dark h2, .bg-dark h3 {
    color: var(--color-light-text);
}

.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mb-3 { margin-bottom: var(--spacing-lg); }

/* Grid System */
.grid-2-cols {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .grid-2-cols {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Buttons */
.button {
    display: inline-block;
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-speed);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.button-primary {
    background-color: var(--color-primary-accent);
    color: var(--color-light-text);
}

.button-primary:hover {
    background-color: #957B4A; /* Slightly darker gold */
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.button-secondary {
    background-color: var(--color-secondary-accent);
    color: var(--color-light-text);
}

.button-secondary:hover {
    background-color: #304D36; /* Slightly darker green */
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.button-tertiary {
    background-color: transparent;
    border-color: var(--color-primary-accent);
    color: var(--color-primary-accent);
}

.button-tertiary:hover {
    background-color: var(--color-primary-accent);
    color: var(--color-light-text);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.full-width {
    width: 100%;
}

/* Header */
.main-header {
    background-color: var(--color-background-light);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary-accent);
    text-decoration: none;
}

.logo-icon {
    margin-right: var(--spacing-xs);
    border-radius: 50%; /* Example for a round logo icon */
}

.main-nav {
    display: none; /* Hidden by default on mobile */
}

.nav-list {
    display: flex;
    gap: var(--spacing-md);
    margin-right: var(--spacing-md);
}

.nav-link {
    color: var(--color-primary-text);
    font-weight: 500;
    position: relative;
    padding-bottom: 5px;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary-accent);
    transition: width var(--transition-speed);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-button {
    padding: 0.8rem 1.8rem;
}

.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    position: relative;
    z-index: 1001;
}

.hamburger-icon,
.hamburger-icon::before,
.hamburger-icon::after {
    content: '';
    width: 100%;
    height: 2px;
    background-color: var(--color-primary-text);
    transition: all var(--transition-speed);
    display: block;
}

.hamburger-icon::before {
    transform: translateY(-8px);
}

.hamburger-icon::after {
    transform: translateY(8px);
}

.mobile-menu-toggle.open .hamburger-icon {
    background-color: transparent;
}

.mobile-menu-toggle.open .hamburger-icon::before {
    transform: rotate(45deg) translate(5px, 6px);
}

.mobile-menu-toggle.open .hamburger-icon::after {
    transform: rotate(-45deg) translate(5px, -6px);
}

.mobile-nav-drawer {
    position: fixed;
    top: 0;
    left: -100%; /* Off-screen by default */
    width: 100%;
    height: 100%;
    background-color: var(--color-secondary-accent); /* Deep Green */
    transition: left var(--transition-speed);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: var(--spacing-xl);
}

.mobile-nav-drawer.open {
    left: 0;
}

.mobile-nav-list {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.mobile-nav-list li {
    margin-bottom: var(--spacing-md);
}

.mobile-nav-link {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-light-text);
    display: block;
    padding: var(--spacing-xs) 0;
}

.mobile-nav-link:hover {
    color: var(--color-primary-accent);
}

.mobile-nav-button {
    width: 80%; /* Adjust as needed */
    max-width: 300px;
    margin-top: var(--spacing-md);
}

.social-links-mobile {
    margin-top: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-md);
}

.social-links-mobile img {
    filter: invert(100%); /* Make placeholder icons white */
    transition: filter var(--transition-speed);
}

.social-links-mobile a:hover img {
    filter: brightness(0) saturate(100%) invert(79%) sepia(12%) saturate(996%) hue-rotate(359deg) brightness(97%) contrast(89%); /* Gold filter */
}

/* Hero Section */
.hero-section {
    background: url('https://via.placeholder.com/1600x900/8B4513/F9F7F3?text=Bistro+Hero') no-repeat center center/cover;
    height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-light-text);
    position: relative;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.hero-section h1 {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--color-light-text);
    margin-bottom: var(--spacing-sm);
}

.hero-section h3 {
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--color-light-text);
    margin-bottom: var(--spacing-lg);
}

.hero-ctas .button {
    margin: var(--spacing-xs);
}

/* About Section */
.about-section .about-image img {
    border-radius: var(--border-radius);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Menu Preview Section */
.section-subtitle {
    font-size: 1.1rem;
    color: var(--color-neutral-grey);
    margin-bottom: var(--spacing-xl);
}

.menu-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.menu-card {
    background-color: var(--color-light-text);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    padding: var(--spacing-md);
    text-align: center;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.menu-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.menu-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
}

.menu-card h3 {
    font-size: 1.4rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary-text);
}

.menu-card p {
    font-size: 0.95rem;
    color: var(--color-neutral-grey);
    margin-bottom: var(--spacing-sm);
}

.menu-card .price {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-primary-accent);
    display: block;
    margin-top: var(--spacing-sm);
}

/* Golden Spoon Difference Section */
.difference-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.difference-item {
    text-align: center;
    padding: var(--spacing-md);
}

.difference-item .difference-icon {
    width: 60px;
    height: 60px;
    object-fit: contain;
    margin: 0 auto var(--spacing-sm);
    filter: brightness(0) saturate(100%) invert(79%) sepia(12%) saturate(996%) hue-rotate(359deg) brightness(97%) contrast(89%); /* Gold filter */
}

.difference-item h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
}

.difference-item p {
    font-size: 0.95rem;
    color: var(--color-neutral-grey);
}

/* Testimonials Section */
.testimonials-section {
    text-align: center;
    overflow: hidden; /* For carousel */
}

.testimonial-carousel {
    display: flex;
    overflow: hidden;
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: var(--spacing-lg) auto;
}

.testimonial-card {
    min-width: 100%;
    flex-shrink: 0;
    padding: var(--spacing-md);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    transition: transform 0.5s ease-in-out;
}

.testimonial-quote {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-style: italic;
    margin-bottom: var(--spacing-sm);
    color: var(--color-light-text);
}

.testimonial-author {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary-accent);
}

.carousel-nav {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.nav-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-neutral-grey);
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
}

.nav-dot.active,
.nav-dot:hover {
    background-color: var(--color-primary-accent);
    transform: scale(1.2);
}

/* Location & Hours Section */
.location-info ul {
    margin-bottom: var(--spacing-md);
}

.location-info ul li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary-text);
    font-size: 1.1rem;
}

.location-info .subtitle {
    font-size: 1.5rem;
    margin-top: var(--spacing-lg);
}

.map-container {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.map-container iframe {
    width: 100%;
    height: 350px;
    display: block;
}

/* Reservations Section */
.reservation-form {
    max-width: 600px;
    margin: var(--spacing-xl) auto 0;
    background-color: var(--color-light-text);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--color-primary-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--color-neutral-grey);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-primary-text);
    background-color: var(--color-background-light);
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-primary-accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(169, 140, 81, 0.2);
}

.form-group textarea {
    resize: vertical;
}

@media (min-width: 768px) {
    .reservation-form {
        grid-template-columns: repeat(2, 1fr);
    }
    .form-group.full-width {
        grid-column: span 2;
    }
}

.reservation-policy {
    font-size: 0.9rem;
    color: var(--color-neutral-grey);
}

/* Gallery Section */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.gallery-item {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
    cursor: pointer;
}

.gallery-item:hover {
    transform: scale(1.03);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

/* Contact Section */
.contact-info {
    padding-right: var(--spacing-md);
}

.contact-info p {
    color: var(--color-light-text);
    margin-bottom: var(--spacing-sm);
}

.contact-detail {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.1rem;
}

.contact-info .subtitle {
    margin-top: var(--spacing-md);
}

.contact-info ul li {
    color: var(--color-light-text);
    font-size: 1rem;
}

.contact-info .social-links {
    margin-top: var(--spacing-md);
}

.contact-form-container {
    background-color: var(--color-light-text);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .contact-form {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-form .form-group.full-width {
        grid-column: span 2;
    }
}


/* Footer */
.main-footer {
    padding: var(--spacing-xl) 0 var(--spacing-md);
    color: var(--color-light-text);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
        text-align: left;
    }
}

.footer-column h3 {
    color: var(--color-primary-accent);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.footer-column ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: var(--color-light-text);
    font-size: 0.95rem;
    transition: color var(--transition-speed);
}

.footer-column a:hover {
    color: var(--color-primary-accent);
}

.footer-column .social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

@media (min-width: 768px) {
    .footer-column .social-links {
        justify-content: flex-start;
    }
}

.footer-column .social-links img {
    filter: invert(100%); /* Make placeholder icons white */
    transition: filter var(--transition-speed);
}

.footer-column .social-links a:hover img {
    filter: brightness(0) saturate(100%) invert(79%) sepia(12%) saturate(996%) hue-rotate(359deg) brightness(97%) contrast(89%); /* Gold filter */
}

.copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--color-neutral-grey);
}


/* Responsive Typography & Spacing adjustments */
@media (min-width: 768px) {
    h1 {
        font-size: 2.8rem;
    }
    h2 {
        font-size: 2rem;
    }
    h3 {
        font-size: 1.6rem;
    }
    .hero-section h1 {
        font-size: 3.5rem;
    }
    .hero-section h3 {
        font-size: 2rem;
    }
    .section-subtitle {
        font-size: 1.2rem;
    }
    .menu-grid, .difference-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .map-container iframe {
        height: 450px;
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: 1440px;
        padding: 0 var(--spacing-lg);
    }
    h1 {
        font-size: 4.5rem;
    }
    h2 {
        font-size: 3rem;
    }
    h3 {
        font-size: 2rem;
    }
    .hero-section h1 {
        font-size: 4.5rem;
    }
    .hero-section h3 {
        font-size: 2.5rem;
    }
    .main-nav {
        display: flex;
        align-items: center;
    }
    .mobile-menu-toggle {
        display: none;
    }
    .main-header {
        padding: var(--spacing-md) 0;
    }
    .main-nav .nav-list {
        margin-right: var(--spacing-xl);
    }
    .nav-link {
        font-size: 1.1rem;
    }
    .button.nav-button {
        padding: 1rem 2.5rem;
    }
    .about-image img {
        height: 400px;
        object-fit: cover;
    }
    .gallery-item {
        height: 300px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

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

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s forwards;
}
.fade-in-left {
    opacity: 0;
    animation: fadeInLeft 0.8s forwards;
}
.fade-in-right {
    opacity: 0;
    animation: fadeInRight 0.8s forwards;
}
.fade-in {
    opacity: 0;
    animation: fadeIn 0.8s forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}
.delay-2 {
    animation-delay: 0.4s;
}
.delay-3 {
    animation-delay: 0.6s;
}

/* Ensure animations only trigger on scroll, not initial load */
/* This typically requires JS (Intersection Observer) or setting initial opacity to 0 and adding a class on scroll. */
/* For CSS-only, we'll assume content below viewport will animate on load if not handled by JS. */
/* For production, JS-based Intersection Observer is recommended for better UX. */
/* Let's adjust the animations to be triggered by a class added by JS. For now, they will run on load. */
/* Initial state for elements that will be animated by JS */
.section-title, .section-subtitle, .about-content, .about-image, .menu-card, .difference-item, .gallery-item, .reservation-form, .contact-info, .contact-form-container {
    opacity: 0;
}

/* Hero section elements should still animate on page load */
.hero-section h1, .hero-section h3, .hero-ctas .button {
    opacity: 1; /* Override initial 0 opacity for hero elements */
}

/* Placeholder for font awesome or similar icons */
/* If real icons are used, these would be replaced */
i.icon-map-marker::before { content: '📍'; margin-right: 5px; }
i.icon-phone::before { content: '📞'; margin-right: 5px; }
i.icon-envelope::before { content: '✉️'; margin-right: 5px; }