/* Reset & Base */
:root {
    --primary-color: #2C3E30;
    /* Deep Forest Green */
    --accent-color: #C5A059;
    /* Gold/Brass */
    --text-color: #333333;
    --bg-color: #F9F8F4;
    /* Off-white */
    --white: #ffffff;
    --font-heading: 'Cinzel', serif;
    --font-body: 'Noto Sans JP', 'Lato', sans-serif;
    --transition: all 0.4s ease;
}

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

body {
    font-family: var(--font-body);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.05em;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-subtitle {
    display: block;
    font-size: 0.9rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 0.5rem;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--primary-color);
    color: var(--white);
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: 1px solid var(--primary-color);
    transition: var(--transition);
}

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

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

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

.btn-text {
    color: var(--primary-color);
    font-weight: 500;
    border-bottom: 1px solid currentColor;
    padding-bottom: 2px;
}

.btn-text:hover {
    color: var(--accent-color);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent);
}

.header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header.scrolled .logo,
.header.scrolled .nav-list a {
    color: var(--primary-color);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--white);
    font-weight: 600;
    letter-spacing: 0.1em;
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-list a {
    color: var(--white);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    position: relative;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--accent-color);
    transition: var(--transition);
}

.nav-list a:hover::after {
    width: 100%;
}

.btn-contact {
    border: 1px solid var(--white);
    padding: 0.5rem 1.5rem;
}

.header.scrolled .btn-contact {
    border-color: var(--primary-color);
}

.hamburger {
    display: none;
    cursor: pointer;
}

/* Hero Slider */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    overflow: hidden;
}

.hero-slider {
    height: 100%;
    position: relative;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    /* Overlay */
}

.slide.active {
    opacity: 1;
}

.slide-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    transform: translateY(30px);
    opacity: 0;
    transition: all 1s ease 0.5s;
}

.slide.active .slide-content {
    transform: translateY(0);
    opacity: 1;
}

.slide-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.slide-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    font-weight: 300;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 2px 14px rgba(0, 0, 0, 0.4);
}

.slider-controls {
    position: absolute;
    bottom: 2rem;
    right: 2rem;
    z-index: 10;
    display: flex;
    gap: 1rem;
}

.prev,
.next {
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
}

.prev:hover,
.next:hover {
    background-color: var(--white);
    color: var(--primary-color);
}

/* Concept Section */
.concept {
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
}

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

.concept .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.concept-content {
    z-index: 2;
}

.concept-text {
    margin-bottom: 2rem;
    font-size: 1rem;
    color: #666;
}

.concept-image-wrapper {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.concept-image {
    width: 100%;
    height: 120%;
    /* For parallax */
    object-fit: cover;
    object-position: center;
}

/* Collection Section */
.collection {
    padding: 6rem 0;
    background-color: var(--white);
}

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

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.category-item {
    position: relative;
    display: block;
    overflow: hidden;
    height: 400px;
}

.category-image-wrapper {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #ddd;
}

.category-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.6s ease;
}

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

.category-info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 2rem;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    color: var(--white);
    transform: translateY(0);
    transition: var(--transition);
}

.category-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.category-info p {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* CTA Section */
.cta-section {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    background-size: cover;
    background-position: center;
    z-index: 1;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
    padding: 2rem;
}

.cta-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.cta-content p {
    margin-bottom: 2rem;
    font-size: 1.2rem;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    display: block;
    margin-bottom: 1rem;
}

.footer h4 {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: var(--accent-color);
}

.footer ul li {
    margin-bottom: 0.8rem;
}

.footer ul li a {
    opacity: 0.8;
}

.footer ul li a:hover {
    opacity: 1;
    color: var(--accent-color);
}

.footer-contact p {
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.social-icons {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
    .slide-title {
        font-size: 2.5rem;
    }

    .concept .container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

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

    .nav {
        display: none;
        /* Mobile menu logic needed if implementing full mobile nav */
    }

    .hamburger {
        display: block;
        color: var(--white);
    }

    .header.scrolled .hamburger {
        color: var(--primary-color);
    }
}