@charset "UTF-8";

/* ==========================================================================
   Variables (変数定義)
   ========================================================================== */
:root {
    --color-bg: #ffffff;
    --color-bg-light: #f9f9f9;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-gold: #b5985a;
    /* 高級感のあるゴールド */
    --color-gold-hover: #9c8044;

    --font-en: 'Instrument Serif', serif;
    --font-ja: 'Shippori Mincho', serif;

    --header-height: 80px;
    --header-height-sp: 60px;

    --easing: cubic-bezier(0.25, 1, 0.5, 1);
}

/* ==========================================================================
   Reset & Base (リセットと基本設定)
   ========================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s var(--easing);
}

a:hover {
    color: var(--color-gold);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: bottom;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: normal;
    line-height: 1.4;
}

.section-title {
    font-family: var(--font-en);
    font-size: 3rem;
    color: var(--color-gold);
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

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

/* Layout */
.section {
    padding: 100px 0;
}

.bg-light {
    background-color: var(--color-bg-light);
}

/* ==========================================================================
   Header (ヘッダー)
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 100;
    transition: background-color 0.4s ease, box-shadow 0.4s ease;
    /* 初期状態は透明 */
    background-color: transparent;
}

.header.is-scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.header.is-scrolled .header__logo a,
.header.is-scrolled .header__nav-list a {
    color: var(--color-text);
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    padding: 0 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.header__logo a {
    font-family: var(--font-en);
    font-size: 2rem;
    color: #fff;
    transition: color 0.4s ease;
}

.header__nav-list {
    display: flex;
    gap: 40px;
}

.header__nav-list a {
    font-family: var(--font-en);
    font-size: 1.1rem;
    color: #fff;
    position: relative;
    transition: color 0.4s ease;
}

.header__nav-list a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-gold);
    transition: width 0.3s var(--easing);
}

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

.external-icon {
    font-size: 0.8em;
    margin-left: 2px;
}

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

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

.header__hamburger span:nth-child(1) {
    top: 0;
}

.header__hamburger span:nth-child(2) {
    top: 50%;
    transform: translateY(-50%);
}

.header__hamburger span:nth-child(3) {
    bottom: 0;
}

/* ==========================================================================
   Hero Section (メインビジュアル)
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    overflow: hidden;
}

.hero__slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero__slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 2s ease-in-out;
}

.hero__slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    /* 画像を少し暗くして文字を読ませる */
}

.hero__slide.active {
    opacity: 1;
}

.hero__copy {
    position: absolute;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
    color: #fff;
    z-index: 10;
}

.hero__copy h2 {
    font-family: var(--font-en);
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 1rem;
    text-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.hero__copy p {
    font-size: 1.2rem;
    letter-spacing: 0.2em;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   Concept Section (コンセプト)
   ========================================================================== */
.concept__inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 80px;
}

.concept__image {
    flex: 1;
    position: relative;
}

.concept__image::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--color-gold);
    z-index: -1;
}

.concept__image img {
    width: 100%;
    height: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.concept__text {
    flex: 1;
}

.concept__text h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.concept__text p {
    color: var(--color-text-light);
}

/* ==========================================================================
   Menu & Price Section (メニューと料金)
   ========================================================================== */
.menu__inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.menu__list {
    border-top: 1px solid #ddd;
}

.menu__item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2.5rem 0;
    border-bottom: 1px solid #ddd;
    transition: background-color 0.3s ease;
}

.menu__info {
    flex: 1;
}

.menu__name {
    font-family: var(--font-en);
    font-size: 1.8rem;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.menu__desc {
    color: var(--color-text-light);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.menu__time {
    font-size: 0.85rem;
    color: var(--color-gold);
}

.menu__price {
    font-family: var(--font-en);
    font-size: 1.8rem;
    color: var(--color-gold);
    font-weight: normal;
    padding-left: 2rem;
}

.menu__note {
    text-align: right;
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: 1rem;
}

/* ==========================================================================
   Staff Section (スタッフ紹介)
   ========================================================================== */
.staff__inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.staff__list {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.staff__card {
    width: calc(33.333% - 27px);
    background: #fff;
    border-radius: 4px;
    overflow: hidden;
    transition: transform 0.4s var(--easing), box-shadow 0.4s ease;
}

.staff__card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.staff__img {
    width: 100%;
    aspect-ratio: 3/4;
    overflow: hidden;
}

.staff__img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.staff__card:hover .staff__img img {
    transform: scale(1.05);
}

.staff__details {
    padding: 1.5rem;
    text-align: center;
}

.staff__role {
    display: inline-block;
    font-family: var(--font-en);
    font-size: 0.85rem;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.staff__name {
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.staff__name span {
    display: block;
    font-family: var(--font-en);
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin-top: 0.2rem;
}

.staff__history {
    font-size: 0.85rem;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.staff__skill {
    font-size: 0.85rem;
    color: var(--color-gold);
    margin-bottom: 1rem;
    border-bottom: 1px solid #f0f0f0;
    padding-bottom: 1rem;
}

.staff__msg {
    font-size: 0.8rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* ==========================================================================
   Info & Access Section (店舗情報とアクセス)
   ========================================================================== */
.access__inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.access__content {
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.access__info {
    flex: 1;
}

.access__info h3 {
    font-family: var(--font-en);
    font-size: 2rem;
    margin-bottom: 2rem;
}

.access__dl {
    display: flex;
    flex-wrap: wrap;
    border-top: 1px solid #ddd;
}

.access__dl dt {
    width: 30%;
    padding: 1.5rem 0;
    border-bottom: 1px solid #ddd;
    color: var(--color-gold);
    font-weight: 500;
}

.access__dl dd {
    width: 70%;
    padding: 1.5rem 0;
    border-bottom: 1px solid #ddd;
}

.access__map {
    flex: 1;
    border: 1px solid #eee;
    padding: 10px;
    background: #fff;
}

/* ==========================================================================
   Footer (フッター)
   ========================================================================== */
.footer {
    background-color: var(--color-text);
    color: #fff;
    text-align: center;
    padding: 3rem 0;
}

.footer p {
    font-family: var(--font-en);
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

/* ==========================================================================
   Floating Reservation Button (予約ボタン)
   ========================================================================== */
.reserve-btn {
    position: fixed;
    bottom: 40px;
    right: 40px;
    background-color: var(--color-text);
    color: var(--color-gold);
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    z-index: 90;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s var(--easing), background-color 0.3s ease;
}

.reserve-btn:hover {
    transform: translateY(-5px);
    background-color: #000;
    color: #fff;
}

.reserve-btn__text {
    font-family: var(--font-en);
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.reserve-btn__sub {
    font-size: 0.7rem;
}

/* ==========================================================================
   Animations (アニメーション)
   ========================================================================== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ==========================================================================
   Media Queries (レスポンシブ対応)
   ========================================================================== */
/* Tablet */
@media screen and (max-width: 1024px) {
    .concept__inner {
        flex-direction: column;
        gap: 50px;
    }

    .concept__image::before {
        top: -15px;
        left: -15px;
    }

    .staff__card {
        width: calc(50% - 20px);
    }

    .access__content {
        flex-direction: column;
        gap: 40px;
    }

    .access__map {
        width: 100%;
    }
}

/* Smartphone */
@media screen and (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 2.2rem;
        margin-bottom: 2rem;
    }

    /* Header (SP) */
    .header {
        height: var(--header-height-sp);
        background-color: rgba(255, 255, 255, 0.95);
    }

    .header__logo a {
        color: var(--color-text);
        font-size: 1.5rem;
    }

    .header__inner {
        padding: 0 20px;
    }

    .header__nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--color-bg);
        display: flex;
        justify-content: center;
        align-items: center;
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s ease;
    }

    .header__nav.is-open {
        opacity: 1;
        visibility: visible;
    }

    .header__nav-list {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .header__nav-list a {
        color: var(--color-text);
        font-size: 1.5rem;
    }

    .header__hamburger {
        display: block;
    }

    .header__hamburger.is-active span:nth-child(1) {
        transform: translateY(10px) rotate(45deg);
    }

    .header__hamburger.is-active span:nth-child(2) {
        opacity: 0;
    }

    .header__hamburger.is-active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    /* Hero (SP) */
    .hero__copy h2 {
        font-size: 3rem;
    }

    .hero__copy p {
        font-size: 1rem;
    }

    /* Menu (SP) */
    .menu__item {
        flex-direction: column;
        align-items: flex-start;
        padding: 1.5rem 0;
    }

    .menu__price {
        padding-left: 0;
        margin-top: 1rem;
        align-self: flex-end;
    }

    /* Staff (SP) */
    .staff__card {
        width: 100%;
    }

    /* Reserve Button (SP) */
    .reserve-btn {
        width: 80px;
        height: 80px;
        bottom: 20px;
        right: 20px;
    }

    .reserve-btn__text {
        font-size: 0.9rem;
    }

    .reserve-btn__sub {
        display: none;
    }
}