/* ===== RESET & BASE ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-bg: #F7F4EF;
    --color-dark: #2A2520;
    --color-accent: #7A5C3A;
    --color-accent-light: #A07848;
    --color-border: #D8CEBC;
    --color-text: #3E342A;
    --color-text-light: #7A6E62;
    --color-white: #FFFFFF;
    --color-overlay: rgba(30, 22, 14, 0.52);
    --font-serif: 'Noto Serif JP', 'HiraginoMincho Pro', 'Yu Mincho', serif;
    --transition: 0.35s ease;
    --section-gap: 100px;
    --container-max: 1100px;
}

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

body {
    font-family: var(--font-serif);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.8;
    -webkit-font-smoothing: antialiased;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 40px;
}

.pc-only {
    display: inline;
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    transition: background var(--transition), box-shadow var(--transition);
}

.header.scrolled {
    background: rgba(247, 244, 239, 0.96);
    box-shadow: 0 1px 20px rgba(0,0,0,0.08);
    backdrop-filter: blur(8px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 40px;
}

.header-logo {
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    color: var(--color-white);
    transition: color var(--transition);
}

.header.scrolled .header-logo {
    color: var(--color-dark);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-link {
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.18em;
    color: var(--color-white);
    position: relative;
    transition: color var(--transition);
}

.header.scrolled .nav-link {
    color: var(--color-text);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-accent);
    transition: width var(--transition);
}

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

.reservation-link {
    border: 1px solid rgba(255,255,255,0.6);
    padding: 8px 18px;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.reservation-link:hover {
    background: var(--color-white);
    color: var(--color-accent);
    border-color: var(--color-white);
}

.header.scrolled .reservation-link {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.header.scrolled .reservation-link:hover {
    background: var(--color-accent);
    color: var(--color-white);
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 1.5px;
    background: var(--color-white);
    transition: transform var(--transition), opacity var(--transition), background var(--transition);
    transform-origin: center;
}

.header.scrolled .hamburger span {
    background: var(--color-dark);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* ===== HERO ===== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-image {
    position: absolute;
    inset: 0;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transform: scale(1.04);
    transition: transform 8s ease;
}

.hero-image img.loaded {
    transform: scale(1);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--color-overlay);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    padding: 0 24px;
}

.hero-subtitle {
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    margin-bottom: 24px;
    opacity: 0.85;
    font-weight: 300;
}

.hero-title {
    margin-bottom: 28px;
}

.title-vertical {
    display: block;
    font-size: clamp(2.4rem, 6vw, 4rem);
    font-weight: 300;
    letter-spacing: 0.22em;
    line-height: 1.3;
}

.hero-copy {
    font-size: clamp(0.875rem, 1.6vw, 1rem);
    font-weight: 300;
    letter-spacing: 0.2em;
    line-height: 2.2;
    opacity: 0.9;
}

.scroll-indicator {
    position: absolute;
    bottom: 36px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--color-white);
    opacity: 0.7;
}

.scroll-text {
    font-size: 0.65rem;
    letter-spacing: 0.22em;
    font-weight: 300;
}

.scroll-line {
    display: block;
    width: 1px;
    height: 50px;
    background: var(--color-white);
    animation: scrollDrop 1.8s ease-in-out infinite;
    transform-origin: top;
}

@keyframes scrollDrop {
    0% { transform: scaleY(0); opacity: 0; }
    40% { transform: scaleY(1); opacity: 1; }
    100% { transform: scaleY(1); opacity: 0; transform-origin: bottom; }
}

/* ===== SECTION BASE ===== */
.section {
    padding: var(--section-gap) 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-label {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.35em;
    color: var(--color-accent);
    margin-bottom: 12px;
    font-weight: 400;
}

.section-title {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 300;
    letter-spacing: 0.18em;
    color: var(--color-dark);
    position: relative;
    display: inline-block;
    padding-bottom: 18px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 1px;
    background: var(--color-accent);
}

/* ===== FADE-IN ===== */
.fade-in {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ===== CONCEPT ===== */
.concept {
    background: var(--color-white);
}

.concept-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.concept-image {
    aspect-ratio: 4/3;
    overflow: hidden;
}

.concept-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.concept-image:hover img {
    transform: scale(1.04);
}

.concept-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.concept-text {
    font-size: 0.95rem;
    line-height: 2;
    color: var(--color-text);
    font-weight: 300;
}

.concept-text.lead {
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--color-dark);
    line-height: 1.9;
}

.concept-text strong {
    font-weight: 500;
    color: var(--color-accent);
}

.concept-badge {
    margin-top: 8px;
    display: inline-flex;
}

.badge-text {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--color-text-light);
    border: 1px solid var(--color-border);
    padding: 8px 16px;
}

/* ===== FOOD ===== */
.food {
    background: var(--color-bg);
}

.course-list {
    display: grid;
    gap: 24px;
    margin-bottom: 32px;
}

.course-card {
    background: rgba(255, 255, 255, 0.62);
    border: 1px solid var(--color-border);
    padding: 28px;
}

.course-card-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 24px;
    align-items: start;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--color-border);
}

.course-title {
    font-size: 1.12rem;
    font-weight: 500;
    letter-spacing: 0.04em;
    line-height: 1.7;
    color: var(--color-dark);
}

.course-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.course-meta span {
    border: 1px solid var(--color-accent);
    color: var(--color-accent);
    font-size: 0.78rem;
    line-height: 1.4;
    padding: 6px 10px;
    white-space: nowrap;
}

.course-description {
    margin-top: 18px;
    font-size: 0.88rem;
    color: var(--color-text-light);
    line-height: 1.9;
}

.course-details {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 24px;
    margin-top: 20px;
}

.course-details div {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 12px;
    align-items: baseline;
}

.course-details dt,
.course-menu span {
    color: var(--color-accent);
    font-size: 0.76rem;
    letter-spacing: 0.12em;
    white-space: nowrap;
}

.course-details dd {
    color: var(--color-text);
    font-size: 0.88rem;
}

.course-menu {
    margin-top: 22px;
}

.course-menu ul {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px 18px;
    margin-top: 10px;
}

.course-menu li {
    position: relative;
    padding-left: 16px;
    color: var(--color-text);
    font-size: 0.9rem;
    line-height: 1.7;
}

.course-menu li::before {
    content: '';
    position: absolute;
    top: 0.78em;
    left: 0;
    width: 5px;
    height: 5px;
    background: var(--color-accent-light);
    border-radius: 50%;
}

.food-note {
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-light);
    letter-spacing: 0.06em;
    font-weight: 300;
}

.food-slideshow {
    margin: 48px auto 28px;
    max-width: 860px;
}

.food-slideshow-track {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--color-dark);
}

.food-slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transform: scale(1.02);
    transition: opacity 0.8s ease, transform 4.5s ease;
}

.food-slide.is-active {
    opacity: 1;
    transform: scale(1);
}

.food-slideshow-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 16px;
}

.food-slideshow-dot {
    width: 9px;
    height: 9px;
    border: 1px solid var(--color-accent);
    border-radius: 50%;
    background: transparent;
    padding: 0;
    cursor: pointer;
    transition: background var(--transition), transform var(--transition);
}

.food-slideshow-dot.is-active,
.food-slideshow-dot:hover {
    background: var(--color-accent);
    transform: scale(1.18);
}

/* ===== SEAT ===== */
.seat {
    background: var(--color-white);
}

.seat-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.seat-image {
    aspect-ratio: 4/3;
    overflow: hidden;
}

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

.seat-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.seat-total {
    display: flex;
    align-items: baseline;
    gap: 8px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 24px;
}

.seat-number {
    font-size: 5rem;
    font-weight: 300;
    line-height: 1;
    color: var(--color-dark);
    letter-spacing: -0.02em;
}

.seat-unit {
    font-size: 1.2rem;
    color: var(--color-text-light);
    font-weight: 300;
}

.seat-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.seat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
}

.seat-type {
    color: var(--color-text-light);
    font-weight: 300;
    letter-spacing: 0.06em;
}

.seat-count {
    font-weight: 400;
    color: var(--color-dark);
}

.seat-description {
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 2;
    font-weight: 300;
}

.seat-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.seat-tag {
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    color: var(--color-text-light);
    border: 1px solid var(--color-border);
    padding: 6px 14px;
    font-weight: 300;
}

/* ===== ACCESS ===== */
.access {
    background: var(--color-bg);
}

.access-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.info-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.info-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 16px;
    padding: 22px 0;
    border-bottom: 1px solid var(--color-border);
}

.info-item:first-child {
    border-top: 1px solid var(--color-border);
}

.info-label {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    font-weight: 400;
    padding-top: 2px;
}

.info-text {
    font-size: 0.9rem;
    line-height: 1.9;
    color: var(--color-text);
    font-weight: 300;
}

.info-note {
    font-size: 0.8rem;
    color: var(--color-text-light);
}

.info-sub {
    font-size: 0.82rem;
    color: var(--color-text-light);
}

.tel-link {
    color: var(--color-accent);
    transition: opacity var(--transition);
}

.tel-link:hover {
    opacity: 0.7;
}

.payment-info {
    margin-top: 28px;
    padding: 24px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
}

.payment-info .info-label {
    display: block;
    margin-bottom: 12px;
}

.payment-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.payment-item {
    font-size: 0.85rem;
    color: var(--color-text);
    font-weight: 300;
    line-height: 1.7;
}

.map-wrapper {
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.google-map {
    display: block;
    border: 0;
}

/* ===== RESERVATION ===== */
.reservation {
    background: var(--color-dark);
}

.reservation .section-label {
    color: rgba(255,255,255,0.5);
}

.reservation .section-title {
    color: var(--color-white);
}

.reservation .section-title::after {
    background: rgba(255,255,255,0.4);
}

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

.reservation-text {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.75);
    line-height: 2.2;
    font-weight: 300;
    margin-bottom: 44px;
    letter-spacing: 0.08em;
}

.reservation-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 36px;
    font-family: var(--font-serif);
    font-size: 0.88rem;
    letter-spacing: 0.12em;
    cursor: pointer;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    font-weight: 400;
    border: 1px solid transparent;
}

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

.btn-tel:hover {
    background: var(--color-accent-light);
    border-color: var(--color-accent-light);
}

.btn-icon {
    font-size: 1rem;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255,255,255,0.4);
}

.btn-secondary:hover {
    border-color: var(--color-white);
    background: rgba(255,255,255,0.08);
}

/* ===== FOOTER ===== */
.footer {
    background: #1C1714;
    color: rgba(255,255,255,0.75);
    padding: 64px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-title {
    font-size: 1.4rem;
    font-weight: 300;
    letter-spacing: 0.2em;
    color: var(--color-white);
    margin-bottom: 20px;
}

.footer-address {
    font-size: 0.85rem;
    line-height: 2;
    font-weight: 300;
    margin-bottom: 12px;
}

.footer-tel a {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    transition: color var(--transition);
}

.footer-tel a:hover {
    color: var(--color-white);
}

.footer-links {
    display: flex;
    gap: 48px;
    align-items: flex-start;
}

.footer-nav-title {
    font-size: 0.7rem;
    letter-spacing: 0.25em;
    color: rgba(255,255,255,0.4);
    margin-bottom: 20px;
    font-weight: 400;
}

.footer-nav-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-nav-list a {
    font-size: 0.8rem;
    letter-spacing: 0.14em;
    color: rgba(255,255,255,0.6);
    transition: color var(--transition);
    font-weight: 300;
}

.footer-nav-list a:hover {
    color: var(--color-white);
}

.footer-bottom {
    padding: 28px 0;
    text-align: center;
}

.footer-copyright {
    font-size: 0.72rem;
    color: rgba(255,255,255,0.3);
    letter-spacing: 0.1em;
    font-weight: 300;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    :root {
        --section-gap: 72px;
    }

    .container {
        padding: 0 28px;
    }

    .header-inner {
        padding: 18px 28px;
    }

    .header-nav {
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        background: var(--color-dark);
        padding: 100px 40px 40px;
        transform: translateX(100%);
        transition: transform var(--transition);
        z-index: 99;
    }

    .header-nav.open {
        transform: translateX(0);
    }

    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: 28px;
    }

    .nav-link {
        font-size: 0.9rem;
        color: var(--color-white) !important;
        letter-spacing: 0.2em;
    }

    .reservation-link {
        border-color: rgba(255,255,255,0.3) !important;
        color: var(--color-white) !important;
    }

    .hamburger {
        display: flex;
        z-index: 101;
        position: relative;
    }

    .concept-grid,
    .seat-content,
    .access-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .course-card-header,
    .course-details,
    .course-menu ul {
        grid-template-columns: 1fr;
    }

    .course-meta {
        justify-content: flex-start;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .pc-only {
        display: none;
    }
}

@media (max-width: 560px) {
    :root {
        --section-gap: 56px;
    }

    .container {
        padding: 0 20px;
    }

    .header-inner {
        padding: 16px 20px;
    }

    .section-header {
        margin-bottom: 40px;
    }

    .course-card {
        padding: 22px;
    }

    .course-details div {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .seat-number {
        font-size: 3.6rem;
    }

    .info-item {
        grid-template-columns: 1fr;
        gap: 6px;
    }

    .reservation-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .footer-links {
        flex-direction: column;
        gap: 32px;
    }
}