/* ========================================
   Akula Catamarans - Premium Landing Page
   ======================================== */

/* CSS Variables */
:root {
    --primary-color: #0a1628;
    --secondary-color: #1a3a5c;
    --accent-color: #c9a961;
    --accent-light: #e4d4a8;
    --text-color: #333;
    --text-light: #666;
    --white: #ffffff;
    --off-white: #f8f9fa;
    --dark-overlay: rgba(10, 22, 40, 0.7);

    --font-heading: 'Playfair Display', Georgia, serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.2);

    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.3;
    color: var(--primary-color);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

.lead {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-light);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: none;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 1px solid var(--white);
}

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

.btn-large {
    padding: 1.25rem 3rem;
    font-size: 1rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.5rem 0;
    background: transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    padding: 1rem 0;
}

.navbar.scrolled .nav-menu a {
    color: var(--primary-color);
}

.navbar.scrolled .logo img {
    filter: none;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 60px;
    width: auto;
    transition: var(--transition);
}

.navbar.scrolled .logo img {
    /* No filter needed for colored logo */
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-menu a {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--white);
}

.nav-menu a:hover {
    color: var(--accent-color);
}

.btn-nav {
    padding: 0.75rem 1.5rem;
    background: var(--accent-color);
    color: var(--primary-color) !important;
}

.btn-nav:hover {
    background: var(--accent-light);
}

/* Language Selector */
.language-selector {
    position: relative;
    margin-left: 1.5rem;
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    color: var(--white);
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.lang-toggle:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.lang-toggle svg {
    transition: var(--transition);
}

.navbar.scrolled .lang-toggle {
    color: var(--primary-color);
    border-color: rgba(0, 0, 0, 0.2);
}

.navbar.scrolled .lang-toggle:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: var(--white);
    border-radius: 4px;
    box-shadow: var(--shadow-lg);
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 100;
}

.lang-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown li {
    border-bottom: 1px solid #eee;
}

.lang-dropdown li:last-child {
    border-bottom: none;
}

.lang-dropdown button {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    text-align: left;
    font-family: var(--font-body);
    font-size: 0.875rem;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
}

.lang-dropdown button:hover {
    background: var(--off-white);
    color: var(--accent-color);
}

.lang-dropdown button.active {
    background: var(--accent-color);
    color: var(--primary-color);
    font-weight: 600;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.navbar.scrolled .nav-toggle span {
    background: var(--primary-color);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        to bottom,
        rgba(10, 22, 40, 0.4) 0%,
        rgba(10, 22, 40, 0.6) 50%,
        rgba(10, 22, 40, 0.8) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: 0 2rem;
}

.hero-content h1 {
    color: var(--white);
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    letter-spacing: 0.1em;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.4s both;
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--white);
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 0.5rem;
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(45deg);
    margin: 0 auto;
}

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

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* Section Styles */
.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header.light h2,
.section-header.light .section-label {
    color: var(--white);
}

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.section-description {
    max-width: 600px;
    margin: 1.5rem auto 0;
    color: var(--text-light);
}

.section-header.light .section-description {
    color: rgba(255,255,255,0.8);
}

/* About Section */
.about {
    background: var(--off-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-content {
    padding-right: 2rem;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.875rem;
    color: var(--text-light);
    margin: 0;
}

/* Power 56 Section */
.power56 {
    background: var(--primary-color);
    color: var(--white);
}

.specs-showcase {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.specs-image {
    position: relative;
    overflow: hidden;
}

.specs-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.specs-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.specs-content h3 {
    color: var(--accent-color);
    margin-bottom: 2rem;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.spec-item {
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 1rem;
}

.spec-label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255,255,255,0.6);
    margin-bottom: 0.25rem;
}

.spec-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
}

.specs-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    padding-top: 3rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.specs-category h4 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.specs-category ul li {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 0.875rem;
}

.specs-category ul li span {
    color: rgba(255,255,255,0.7);
}

.specs-category ul li strong {
    color: var(--white);
}

/* Interior Showcase */
.interior-showcase {
    background: var(--white);
}

.interior-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 250px);
    gap: 1rem;
}

.interior-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.interior-item.large {
    grid-column: span 2;
    grid-row: span 2;
}

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

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

.interior-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: var(--white);
    transform: translateY(100%);
    transition: var(--transition);
}

.interior-item:hover .interior-overlay {
    transform: translateY(0);
}

.interior-overlay h3 {
    color: var(--white);
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.interior-overlay p {
    font-size: 0.875rem;
    opacity: 0.8;
    margin: 0;
}

/* Gallery Section */
.gallery {
    background: var(--off-white);
}

.gallery-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.tab-btn {
    padding: 0.75rem 2rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover,
.tab-btn.active {
    background: var(--primary-color);
    color: var(--white);
}

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

.gallery-item {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
    cursor: pointer;
}

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

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-item.hidden {
    display: none;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.video-item video {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--primary-color);
}

/* Craftsmanship Section */
.craftsmanship {
    background: var(--secondary-color);
    color: var(--white);
}

.craft-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.craft-text .lead {
    color: rgba(255,255,255,0.9);
    margin-bottom: 1.5rem;
}

.craft-text p {
    color: rgba(255,255,255,0.7);
}

.craft-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.craft-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
}

.craft-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.craft-image span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1rem;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Contact Section */
.contact {
    background: var(--white);
}

.contact-content {
    max-width: 700px;
    margin: 0 auto;
}

.contact-form {
    background: var(--off-white);
    padding: 3rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    border: 1px solid #ddd;
    background: var(--white);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-group textarea {
    resize: vertical;
}

.contact-form .btn {
    width: 100%;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-logo {
    height: 80px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: rgba(255,255,255,0.7);
    font-size: 0.875rem;
}

.footer-links h4,
.footer-certifications h4 {
    color: var(--accent-color);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}

.footer-links ul li,
.footer-certifications ul li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 0.875rem;
}

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

.footer-certifications li {
    color: rgba(255,255,255,0.7);
    font-size: 0.875rem;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255,255,255,0.5);
    font-size: 0.875rem;
    margin: 0;
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 2rem;
}

.lightbox.active {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 2rem;
    color: var(--white);
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.lightbox-close:hover {
    color: var(--accent-color);
}

.lightbox-image {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about-content {
        padding-right: 0;
    }

    .specs-showcase {
        grid-template-columns: 1fr;
    }

    .specs-image {
        height: 400px;
    }

    .specs-details {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .interior-item.large {
        grid-column: span 2;
        grid-row: span 1;
        height: 300px;
    }

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

    .craft-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--primary-color);
        flex-direction: column;
        padding: 6rem 2rem 2rem;
        transition: var(--transition);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        color: var(--white);
        font-size: 1rem;
    }

    .language-selector {
        position: absolute;
        top: 1.5rem;
        right: 4rem;
        margin-left: 0;
    }

    .lang-toggle {
        padding: 0.4rem 0.6rem;
        font-size: 0.75rem;
    }

    .lang-dropdown {
        right: auto;
        left: 0;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .specs-grid {
        grid-template-columns: 1fr;
    }

    .interior-grid {
        grid-template-columns: 1fr;
    }

    .interior-item.large {
        grid-column: span 1;
    }

    .gallery-tabs {
        flex-wrap: wrap;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .craft-gallery {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .video-grid {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 2rem;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 4rem 0;
    }

    .container {
        padding: 0 1rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }
}