/* ===================================
   Sea & Soul — Restaurant Website
   Burgundy + Blush | Confident Corporate
   =================================== */

/* --- CSS Custom Properties --- */
:root {
    --burgundy: #7B2D3B;
    --burgundy-dark: #5C1F2B;
    --burgundy-light: #9A3D4E;
    --blush: #F5E6E0;
    --blush-light: #FBF3F0;
    --blush-dark: #E8D0C8;
    --navy: #1A2332;
    --navy-light: #2A3548;
    --neutral-50: #FAFAFA;
    --neutral-100: #F5F5F5;
    --neutral-200: #EEEEEE;
    --neutral-300: #E0E0E0;
    --neutral-400: #BDBDBD;
    --neutral-500: #9E9E9E;
    --neutral-600: #757575;
    --neutral-700: #616161;
    --neutral-800: #424242;
    --neutral-900: #212121;
    
    --font-display: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    --shadow-sm: 0 1px 3px rgba(26, 35, 50, 0.08);
    --shadow-md: 0 4px 12px rgba(26, 35, 50, 0.1);
    --shadow-lg: 0 8px 30px rgba(26, 35, 50, 0.12);
    --shadow-xl: 0 16px 50px rgba(26, 35, 50, 0.15);
    
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--neutral-800);
    background-color: var(--neutral-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul {
    list-style: none;
}

/* --- Utility --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--burgundy);
    color: #fff;
    border-radius: var(--radius-sm);
    z-index: 1000;
    font-weight: 500;
}

.skip-link:focus {
    top: var(--space-md);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--burgundy);
    color: #fff;
    border: 2px solid var(--burgundy);
}

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

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.7);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    background: rgba(255, 255, 255, 0.15);
    border-color: #fff;
}

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

.btn-outline:hover,
.btn-outline:focus-visible {
    background: var(--burgundy);
    color: #fff;
    transform: translateY(-1px);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* --- Typography --- */
.section-eyebrow {
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--burgundy);
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 600;
    line-height: 1.2;
    color: var(--navy);
    margin-bottom: var(--space-lg);
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--neutral-600);
    max-width: 600px;
    line-height: 1.7;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.section-header .section-subtitle {
    margin: 0 auto;
}

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--neutral-200);
    transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--navy);
}

.logo em {
    font-style: italic;
    color: var(--burgundy);
}

.logo-icon {
    color: var(--burgundy);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-links a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--neutral-700);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-links a:not(.btn):hover {
    color: var(--burgundy);
}

.nav-links a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--burgundy);
    transition: width var(--transition-base);
}

.nav-links a:not(.btn):hover::after {
    width: 100%;
}

.btn-nav {
    padding: 0.5rem 1.125rem;
    font-size: 0.875rem;
    background: var(--burgundy);
    color: #fff;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.btn-nav:hover {
    background: var(--burgundy-dark);
    transform: translateY(-1px);
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: var(--space-sm);
}

.hamburger {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--navy);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.hamburger::before,
.hamburger::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background: var(--navy);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.nav-toggle[aria-expanded="true"] .hamburger {
    background: transparent;
}

.nav-toggle[aria-expanded="true"] .hamburger::before {
    transform: rotate(45deg) translate(2px, 2px);
}

.nav-toggle[aria-expanded="true"] .hamburger::after {
    transform: rotate(-45deg) translate(2px, -2px);
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: var(--navy);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(26, 35, 50, 0.85) 0%,
        rgba(123, 45, 59, 0.7) 50%,
        rgba(26, 35, 50, 0.8) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--space-4xl) var(--space-lg);
    max-width: 800px;
}

.hero-eyebrow {
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--blush);
    margin-bottom: var(--space-lg);
}

.hero-headline {
    font-family: var(--font-display);
    font-size: clamp(2.25rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    color: #fff;
    margin-bottom: var(--space-xl);
}

.hero-headline em {
    color: var(--blush);
    font-style: italic;
}

.hero-subheadline {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

.hero-scroll {
    position: absolute;
    bottom: var(--space-2xl);
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    animation: float 2s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(6px); }
}

/* --- Highlights --- */
.highlights {
    background: #fff;
    padding: var(--space-3xl) 0;
    border-bottom: 1px solid var(--neutral-200);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.highlight-card {
    text-align: center;
    padding: var(--space-2xl) var(--space-xl);
    border-radius: var(--radius-lg);
    background: var(--blush-light);
    border: 1px solid var(--blush-dark);
    transition: all var(--transition-base);
}

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

.highlight-icon {
    color: var(--burgundy);
    margin-bottom: var(--space-lg);
}

.highlight-card h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: var(--space-sm);
}

.highlight-card p {
    font-size: 0.9375rem;
    color: var(--neutral-600);
    line-height: 1.65;
}

/* --- Menu Section --- */
.menu-section {
    background: var(--neutral-50);
    padding: var(--space-4xl) 0;
}

.menu-categories {
    display: flex;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-2xl);
    flex-wrap: wrap;
}

.menu-tab {
    padding: 0.625rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--neutral-600);
    border: 2px solid var(--neutral-300);
    border-radius: 50px;
    background: transparent;
    transition: all var(--transition-base);
}

.menu-tab:hover {
    color: var(--burgundy);
    border-color: var(--burgundy-light);
}

.menu-tab.active {
    background: var(--burgundy);
    color: #fff;
    border-color: var(--burgundy);
}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

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

.menu-item {
    padding: var(--space-xl);
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--neutral-200);
    transition: all var(--transition-base);
}

.menu-item:hover {
    border-color: var(--blush-dark);
    box-shadow: var(--shadow-md);
}

.menu-item-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.menu-item h4 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--navy);
}

.menu-tag {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--burgundy);
    background: var(--blush);
    padding: 0.25rem 0.625rem;
    border-radius: 50px;
    white-space: nowrap;
}

.menu-item p {
    font-size: 0.9375rem;
    color: var(--neutral-600);
    line-height: 1.6;
}

.menu-note {
    text-align: center;
    margin-top: var(--space-2xl);
    padding: var(--space-lg);
    background: var(--blush-light);
    border-radius: var(--radius-md);
    border: 1px dashed var(--blush-dark);
}

.menu-note p {
    font-size: 0.9375rem;
    color: var(--neutral-600);
    font-style: italic;
}

/* --- About Section --- */
.about-section {
    background: #fff;
    padding: var(--space-4xl) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.about-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.about-content .section-title {
    margin-bottom: var(--space-lg);
}

.about-content > p {
    font-size: 1.0625rem;
    color: var(--neutral-600);
    line-height: 1.75;
    margin-bottom: var(--space-lg);
}

.about-values {
    margin-top: var(--space-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.value-item {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
}

.value-number {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--blush-dark);
    line-height: 1;
    min-width: 3rem;
}

.value-item h4 {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: var(--space-xs);
}

.value-item p {
    font-size: 0.9375rem;
    color: var(--neutral-600);
    line-height: 1.6;
}

/* --- Gallery --- */
.gallery-section {
    background: var(--neutral-50);
    padding: var(--space-4xl) 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
}

.gallery-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 3 / 2;
    background: var(--neutral-200);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* --- CTA Section --- */
.cta-section {
    background: linear-gradient(135deg, var(--navy) 0%, var(--burgundy-dark) 100%);
    padding: var(--space-4xl) 0;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-content .section-eyebrow {
    color: var(--blush);
}

.cta-content .section-title {
    color: #fff;
    margin-bottom: var(--space-lg);
}

.cta-text {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
}

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

.cta-actions .btn-outline {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.cta-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    color: #fff;
}

/* --- Contact Section --- */
.contact-section {
    background: #fff;
    padding: var(--space-4xl) 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
}

.contact-details {
    margin-top: var(--space-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.contact-item {
    display: flex;
    gap: var(--space-lg);
    align-items: flex-start;
}

.contact-icon {
    color: var(--burgundy);
    flex-shrink: 0;
    margin-top: 2px;
}

.contact-item h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 2px;
}

.contact-item p,
.contact-item a {
    font-size: 0.9375rem;
    color: var(--neutral-600);
    line-height: 1.6;
}

.contact-item a:hover {
    color: var(--burgundy);
    text-decoration: underline;
}

.contact-form-wrapper {
    background: var(--blush-light);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    border: 1px solid var(--blush-dark);
}

.contact-form-wrapper h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: var(--space-xl);
}

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

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--neutral-700);
    margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    color: var(--neutral-800);
    background: #fff;
    border: 1.5px solid var(--neutral-300);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--burgundy);
    box-shadow: 0 0 0 3px rgba(123, 45, 59, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--neutral-400);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-success {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: #E8F5E9;
    border: 1px solid #A5D6A7;
    border-radius: var(--radius-md);
    color: #2E7D32;
    font-size: 0.9375rem;
    font-weight: 500;
}

/* --- Footer --- */
.site-footer {
    background: var(--navy);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-brand .logo {
    color: #fff;
    margin-bottom: var(--space-md);
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.65;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: var(--space-lg);
}

.footer-links ul,
.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-links a,
.footer-contact a {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--blush);
}

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.4);
}

/* --- Scroll Reveal (progressive enhancement) --- */
@media (prefers-reduced-motion: no-preference) {
    .reveal {
        opacity: 0;
        transform: translateY(24px);
        transition: opacity 0.6s ease, transform 0.6s ease;
    }
    
    .reveal.revealed {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Responsive --- */
@media (max-width: 1024px) {
    .highlights-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-md);
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        align-items: stretch;
        padding: var(--space-lg);
        gap: var(--space-md);
        border-bottom: 1px solid var(--neutral-200);
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        opacity: 0;
        transition: transform var(--transition-base), opacity var(--transition-base);
        pointer-events: none;
    }
    
    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-links a {
        padding: var(--space-sm) 0;
        font-size: 1rem;
    }
    
    .nav-links a:not(.btn):::after {
        display: none;
    }
    
    .btn-nav {
        text-align: center;
        margin-top: var(--space-sm);
    }
    
    .highlights-grid {
        grid-template-columns: 1fr;
    }
    
    .menu-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-md);
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .menu-categories {
        gap: var(--space-xs);
    }
    
    .menu-tab {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
}