/* ========================================
   リセット & 基本スタイル
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #c31818;
    --secondary-color: #8b0000;
    --text-color: #333;
    --bg-dark: #1a1a1a;
    --bg-light: #f5f5f5;
    --gold: #d4af37;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    height: 100%;
}

body {
    font-family: 'Noto Serif JP', 'Yu Mincho', 'YuMincho', 'Hiragino Mincho ProN', 'MS PMincho', serif;
    color: var(--text-color);
    line-height: 1.8;
    overflow-x: hidden;
    background: #fff;
    min-height: 100%;
    position: relative;
}

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

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.sp-only {
    display: none;
}

/* ========================================
   ローディング画面
======================================== */
#loading {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    min-height: -webkit-fill-available;
    background: var(--bg-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
    overflow: hidden;
}

#loading.loaded {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(195, 24, 24, 0.2);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ========================================
   ヘッダー
======================================== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    border-bottom: 1px solid rgba(195, 24, 24, 0.3);
}

#header.scrolled {
    background: rgba(26, 26, 26, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo a {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.header-logo-image {
    height: 50px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(195, 24, 24, 0.4));
    transition: var(--transition);
}

.header-logo-image:hover {
    filter: drop-shadow(0 4px 12px rgba(195, 24, 24, 0.6));
    transform: translateY(-2px);
}

.nav-menu ul {
    display: flex;
    gap: 40px;
}

.nav-menu a {
    color: #fff;
    font-size: 14px;
    letter-spacing: 0.1em;
    position: relative;
    padding: 5px 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.header-contact .tel-btn {
    background: var(--primary-color);
    color: #fff;
    padding: 10px 25px;
    border-radius: 30px;
    font-size: 14px;
    letter-spacing: 0.05em;
    transition: var(--transition);
}

.header-contact .tel-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(195, 24, 24, 0.4);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    position: relative;
    width: 30px;
    height: 25px;
    z-index: 1001;
}

.menu-toggle span {
    width: 25px;
    height: 2px;
    background: #fff;
    transition: var(--transition);
    display: block;
    position: absolute;
    left: 0;
}

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

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

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

.menu-toggle.active span:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
}

/* ========================================
   モバイルメニュー
======================================== */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-dark);
    z-index: 999;
    transition: right 0.4s ease;
    padding-top: 80px;
}

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

.mobile-menu nav ul {
    display: flex;
    flex-direction: column;
}

.mobile-menu nav a {
    display: block;
    padding: 20px 30px;
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    letter-spacing: 0.1em;
}

.mobile-menu nav a:hover {
    background: rgba(195, 24, 24, 0.2);
    color: var(--primary-color);
}

/* ========================================
   ヒーローセクション
======================================== */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../img/hero-bg.jpg') center/cover no-repeat;
    animation: zoomIn 20s ease-out infinite alternate;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.7) 0%, rgba(139, 0, 0, 0.6) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
}

.hero-logo {
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 48px;
    font-weight: 900;
    color: #fff;
    letter-spacing: 0.15em;
    text-shadow: 0 4px 20px rgba(195, 24, 24, 0.6);
    margin-bottom: 20px;
    line-height: 1.4;
}

.hero-location {
    font-size: 16px;
    letter-spacing: 0.3em;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    animation: bounce 2s ease-in-out infinite;
    margin-top: 20px;
}

.scroll-indicator span {
    font-size: 11px;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.8);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary-color), transparent);
}

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

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

/* ========================================
   予約バナー
======================================== */
.reservation-banner {
    background: var(--bg-dark);
    padding: 40px 0;
    border-top: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.reservation-btn {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    padding: 20px 50px;
    border-radius: 50px;
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 0.1em;
    max-width: 500px;
    margin: 0 auto;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(195, 24, 24, 0.3);
}

.reservation-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(195, 24, 24, 0.5);
}

.reservation-icon {
    font-size: 24px;
    transition: transform 0.3s ease;
}

.reservation-btn:hover .reservation-icon {
    transform: translateX(5px);
}

/* ========================================
   セクション共通
======================================== */
section {
    padding: 100px 0;
}

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

.section-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.title-en {
    font-size: 14px;
    letter-spacing: 0.3em;
    color: var(--primary-color);
    font-weight: 300;
}

.title-ja {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: 0.1em;
    position: relative;
    padding-bottom: 20px;
}

.title-ja::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
}

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

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

.fade-in {
    opacity: 0;
    transition: opacity 1s ease;
}

.fade-in.visible {
    opacity: 1;
}

/* ========================================
   コンセプト
======================================== */
.concept {
    background: var(--bg-light);
}

.concept-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.concept-text {
    font-size: 16px;
    line-height: 2;
    letter-spacing: 0.05em;
}

@media (max-width: 768px) {
    .concept-content {
        text-align: left;
    }
    
    .concept-text {
        font-size: 15px;
        line-height: 1.9;
    }
}

/* ========================================
   メニュー
======================================== */
.menu {
    background: #f5f5f5 url('../img/bg_white.png') repeat;
    position: relative;
}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.menu-item {
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.menu-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.menu-item-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

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

.menu-item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, rgba(26, 26, 26, 0.3) 100%);
}

.menu-item-content {
    padding: 25px;
}

.menu-item-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--text-color);
    letter-spacing: 0.05em;
}

.menu-item-title .sub {
    font-size: 16px;
    font-weight: 400;
}

.menu-item-desc {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
    line-height: 1.7;
}

.menu-item-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.menu-item-price .tax {
    font-size: 12px;
    font-weight: 400;
    color: #999;
    margin-left: 5px;
}

/* ========================================
   店内雰囲気
======================================== */
.atmosphere {
    background: var(--bg-dark) url('../img/bg_black.png') repeat;
    background-size: 700px 516px;
    color: #fff;
    position: relative;
}

.atmosphere .title-ja::after {
    background: var(--primary-color);
}

.atmosphere-grid {
    display: grid;
    gap: 60px;
}

.atmosphere-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.atmosphere-item:nth-child(even) {
    direction: rtl;
}

.atmosphere-item:nth-child(even) > * {
    direction: ltr;
}

.atmosphere-image {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.atmosphere-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.atmosphere-text h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary-color);
    letter-spacing: 0.1em;
}

.atmosphere-text p {
    font-size: 15px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.9);
}

/* ========================================
   アクセス
======================================== */
.access {
    background: var(--bg-light);
}

.access-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.access-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
    letter-spacing: 0.1em;
    border-left: 3px solid var(--primary-color);
    padding-left: 15px;
}

.info-item p {
    font-size: 15px;
    line-height: 1.8;
    padding-left: 18px;
}

.info-item a {
    color: var(--primary-color);
    font-weight: 700;
}

.info-item a:hover {
    text-decoration: underline;
}

.access-map {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    height: 500px;
}

.access-map iframe {
    width: 100%;
    height: 100%;
}

/* ========================================
   プライバシーポリシー
======================================== */
.privacy {
    background: #fff;
}

.privacy-content {
    max-width: 900px;
    margin: 0 auto;
}

.privacy-content p {
    margin-bottom: 20px;
    line-height: 1.9;
}

.privacy-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin: 40px 0 15px;
    color: var(--primary-color);
    border-left: 4px solid var(--primary-color);
    padding-left: 15px;
}

.privacy-content h4 {
    font-size: 16px;
    font-weight: 700;
    margin: 25px 0 10px;
    color: var(--text-color);
}

.privacy-content ul {
    list-style: disc;
    margin-left: 30px;
    margin-bottom: 20px;
}

.privacy-content ul li {
    margin-bottom: 10px;
    line-height: 1.8;
}

.contact-info {
    background: var(--bg-light);
    padding: 20px;
    border-left: 4px solid var(--primary-color);
    margin: 20px 0;
}

.enactment-date {
    text-align: right;
    margin-top: 40px;
    font-weight: 700;
    color: var(--text-color);
}

/* ========================================
   フッター
======================================== */
.footer {
    background: var(--bg-dark);
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    justify-content: center;
    align-items: center;
}

.footer-logo-image {
    height: 80px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(195, 24, 24, 0.4));
}

.footer-info p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 10px;
}

.footer-info a {
    color: var(--primary-color);
}

.footer-info a:hover {
    text-decoration: underline;
}

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

.footer-bottom p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.05em;
}

/* ========================================
   ページトップボタン
======================================== */
#page-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    font-size: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 4px 15px rgba(195, 24, 24, 0.4);
}

#page-top.visible {
    opacity: 1;
    visibility: visible;
}

#page-top:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(195, 24, 24, 0.6);
}

/* ========================================
   レスポンシブ
======================================== */
@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .atmosphere-item {
        grid-template-columns: 1fr;
    }

    .atmosphere-item:nth-child(even) {
        direction: ltr;
    }

    .access-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .sp-only {
        display: inline;
    }

    section {
        padding: 60px 0;
    }

    .header-container {
        padding: 12px 20px;
    }

    .logo-main {
        font-size: 24px;
    }

    .logo-sub {
        font-size: 10px;
    }

    .header-contact {
        display: none;
    }

    .hero {
        height: 80vh;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-location {
        font-size: 13px;
    }

    .reservation-btn {
        font-size: 16px;
        padding: 18px 35px;
    }

    .section-title-wrapper {
        margin-bottom: 40px;
    }

    .title-en {
        font-size: 12px;
    }

    .title-ja {
        font-size: 28px;
    }

    .menu-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .atmosphere-image img {
        height: 300px;
    }

    .atmosphere-text h3 {
        font-size: 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .access-map {
        height: 400px;
    }

    #page-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
        font-size: 20px;
    }
}