:root {
    /* Colors */
    --color-bg: #FCFAF7; /* Warm off-white */
    --color-text: #4A4A4A; /* Charcoal grey for softer text */
    --color-primary: #D4AF37; /* Metallic Gold/Bronze for accents */
    --color-secondary: #E6DCD3; /* Soft Beige for backgrounds */
    --color-accent: #C4A4A4; /* Muted Rose */
    --color-white: #FFFFFF;

    /* Fonts */
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Lato', sans-serif;
    --font-jp: 'Zen Kaku Gothic New', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-jp);
    line-height: 1.8;
    letter-spacing: 0.05em;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

a:hover {
    opacity: 0.7;
}

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

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

.section {
    padding: 8rem 0;
}

@media (max-width: 768px) {
    .section {
        padding: 5rem 0;
    }
}

.section__label {
    display: block;
    font-family: var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.75rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
    text-align: center;
}

.section__title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 4rem;
    color: var(--color-text);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 3rem;
    font-family: var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: 1px solid currentColor;
    transition: all 0.4s ease;
}

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

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

.btn--outline {
    border-color: var(--color-text);
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.5rem 2rem;
    transition: background-color 0.3s ease;
}

.header.scrolled {
    background-color: rgba(252, 250, 247, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo img {
    height: 40px;
    /* Invert logo color logic if needed, but assuming colored logo works on light/dark */
}

.header__nav {
    display: none;
}

@media (min-width: 768px) {
    .header__nav {
        display: block;
    }
}

.header__list {
    display: flex;
    gap: 3rem;
    list-style: none;
}

.header__list a {
    font-family: var(--font-sans);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
}

.header__toggle {
    display: block;
    width: 30px;
    height: 20px;
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
}

@media (min-width: 768px) {
    .header__toggle {
        display: none;
    }
}

.header__toggle span {
    display: block;
    width: 100%;
    height: 1px;
    background-color: var(--color-text);
    position: absolute;
    left: 0;
    transition: all 0.3s ease;
}

.header__toggle span:nth-child(1) { top: 0; }
.header__toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.header__toggle span:nth-child(3) { bottom: 0; }

.header__toggle.active span:nth-child(1) { transform: rotate(45deg); top: 50%; }
.header__toggle.active span:nth-child(2) { opacity: 0; }
.header__toggle.active span:nth-child(3) { transform: rotate(-45deg); bottom: auto; top: 50%; }

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--color-bg);
    z-index: 99;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: auto;
}

.mobile-menu ul {
    list-style: none;
    text-align: center;
}

.mobile-menu li {
    margin: 2rem 0;
}

.mobile-menu a {
    font-family: var(--font-serif);
    font-size: 2rem;
    color: var(--color-text);
}

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

.hero__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.9); /* Slightly darken for text readability */
    animation: zoom 20s infinite alternate;
}

@keyframes zoom {
    0% { transform: scale(1); }
    100% { transform: scale(1.1); }
}

.hero__content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    /* For better contrast if needed, assuming image is light, might need shadow */
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero__title {
    font-size: 5rem;
    margin-bottom: 1rem;
    font-weight: 400;
}

.hero__subtitle {
    font-size: 1.1rem;
    margin-bottom: 3rem;
    letter-spacing: 0.1em;
}

@media (max-width: 768px) {
    .hero__title {
        font-size: 3rem;
    }
}

/* Concept */
.concept__text {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.concept__text p {
    margin-bottom: 2rem;
    font-size: 1.1rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-secondary);
}

.concept__text p:last-child {
    border-bottom: none;
}

/* Classes */
.class-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.class-card {
    background: var(--color-white);
    padding: 1rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
    transition: transform 0.3s ease;
}

.class-card:hover {
    transform: translateY(-10px);
}

.class-card__image {
    height: 250px;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.class-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.class-card:hover .class-card__image img {
    transform: scale(1.05);
}

.class-card__content {
    padding: 0 1rem 1.5rem;
    text-align: center;
}

.class-card__content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

/* Access */
.access {
    background-color: var(--color-secondary);
    text-align: center;
}

.access__info p {
    margin-bottom: 1rem;
}

.access__tel {
    display: block;
    font-family: var(--font-serif);
    font-size: 2rem;
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
}

/* Footer */
.footer {
    padding: 3rem 0;
    text-align: center;
    background-color: var(--color-bg);
}

.footer__logo img {
    height: 30px;
    margin: 0 auto 1.5rem;
    opacity: 0.5;
}

.footer__copyright {
    font-size: 0.8rem;
    color: #999;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}