/* =========================================================================
   # Base Variables & Reset
   ========================================================================= */

:root {
    /* Color Palette - Elegant & Clean (Cafe/Salon Style) */
    --color-bg: #FFFFFF;
    --color-bg-light: #F9F9F8;
    /* わずかに温かみのあるオフホワイト */

    --color-text-main: #333333;
    --color-text-light: #777777;

    --color-accent: #BFA588;
    /* 洗練されたベージュ/ゴールド系 */
    --color-accent-hover: #A68D72;

    --color-white: #FFFFFF;
    --color-border: #E5E5E5;

    /* Typography */
    --font-heading: 'Shippori Mincho', serif;
    --font-body: 'Noto Sans JP', sans-serif;
    --font-english: 'Inter', sans-serif;

    /* Utilities */
    --transition-base: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

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

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

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

ul {
    list-style: none;
}

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

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

/* =========================================================================
   # Typography & Structure
   ========================================================================= */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    line-height: 1.4;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 5%;
}

.section {
    padding: 120px 0;
}

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

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

.section-title {
    font-size: 2.2rem;
    font-family: var(--font-english);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-light);
    letter-spacing: 0.1em;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 48px;
    font-size: 1rem;
    font-family: var(--font-body);
    font-weight: 500;
    letter-spacing: 0.1em;
    cursor: pointer;
    border: none;
    transition: var(--transition-base);
}

.btn-primary {
    background-color: var(--color-text-main);
    color: var(--color-white);
    border: 1px solid var(--color-text-main);
}

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

/* =========================================================================
   # Header
   ========================================================================= */

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(5px);
    transition: var(--transition-base);
    padding: 20px 0;
}

.header.scrolled {
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-text-main);
}

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

.nav-list a {
    font-family: var(--font-english);
    font-size: 0.95rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    position: relative;
    padding-bottom: 5px;
}

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    cursor: pointer;
    z-index: 101;
}

.hamburger span {
    display: block;
    height: 1px;
    width: 100%;
    background-color: var(--color-text-main);
    transition: var(--transition-base);
}

/* =========================================================================
   # Hero Section
   ========================================================================= */

.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('https://images.unsplash.com/photo-1527799820374-dcf8d9d4a388?q=80&w=2071&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    z-index: -1;
}

/* ソフトなオーバーレイで可読性確保 */
.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.85);
    padding: 60px 80px;
    backdrop-filter: blur(8px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.hero-title {
    font-size: 2.8rem;
    margin-bottom: 20px;
    letter-spacing: 0.1em;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-main);
    letter-spacing: 0.15em;
}

/* =========================================================================
   # Concept Section
   ========================================================================= */

.concept-inner {
    display: flex;
    align-items: center;
    gap: 80px;
}

.concept-image {
    flex: 1;
    position: relative;
}

.concept-image::after {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--color-accent);
    z-index: -1;
}

.concept-text {
    flex: 1;
}

.concept-text .section-title {
    text-align: left;
    margin-bottom: 40px;
}

.concept-desc {
    line-height: 2.2;
    font-size: 1.05rem;
    letter-spacing: 0.08em;
}

/* =========================================================================
   # Services Section
   ========================================================================= */

.services-list {
    max-width: 800px;
    margin: 0 auto;
}

.service-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 30px 0;
    border-bottom: 1px solid var(--color-border);
}

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

.service-name {
    font-size: 1.4rem;
    margin-bottom: 8px;
    letter-spacing: 0.1em;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.service-price {
    font-family: var(--font-english);
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--color-accent);
}

/* =========================================================================
   # Gallery Section
   ========================================================================= */

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4 / 5;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

.gallery-caption {
    position: absolute;
    bottom: -100%;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, transparent 100%);
    color: var(--color-white);
    font-size: 0.95rem;
    transition: var(--transition-base);
}

.gallery-item:hover .gallery-caption {
    bottom: 0;
}

/* =========================================================================
   # Access Section
   ========================================================================= */

.access-info {
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-white);
    padding: 60px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

.access-item {
    display: flex;
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--color-bg-light);
}

.access-item:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.access-label {
    width: 160px;
    font-family: var(--font-english);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    color: var(--color-accent);
}

.access-value {
    flex: 1;
}

/* =========================================================================
   # CTA & Footer
   ========================================================================= */

.cta {
    padding: 100px 0;
    background-color: var(--color-text-main);
    color: var(--color-white);
}

.cta-message {
    font-size: 2rem;
    margin-bottom: 40px;
    letter-spacing: 0.1em;
}

.cta-btn {
    background-color: var(--color-white);
    color: var(--color-text-main);
    border-color: var(--color-white);
}

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

.footer {
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--color-bg-light);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.5em;
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.copyright {
    font-size: 0.8rem;
    color: var(--color-text-light);
    font-family: var(--font-english);
}

/* =========================================================================
   # Animations
   ========================================================================= */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s cubic-bezier(0.25, 0.8, 0.25, 1), transform 1s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

/* =========================================================================
   # Media Queries
   ========================================================================= */

@media (max-width: 992px) {
    .concept-inner {
        flex-direction: column;
        gap: 60px;
    }

    .concept-image::after {
        display: none;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        padding: 15px 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

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

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

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100vw;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.98);
        display: flex;
        justify-content: center;
        align-items: center;
        transition: var(--transition-base);
    }

    .nav.active {
        right: 0;
    }

    .nav-list {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }

    .nav-list a {
        font-size: 1.2rem;
    }

    .hero-content {
        padding: 40px 20px;
        width: 90%;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .service-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }

    .service-price {
        align-self: flex-start;
    }

    .access-info {
        padding: 40px 20px;
    }

    .access-item {
        flex-direction: column;
        gap: 10px;
    }

    .cta-message {
        font-size: 1.4rem;
        line-height: 1.6;
    }
}

@media (max-width: 576px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .gallery-caption {
        bottom: 0;
        background: linear-gradient(to top, rgba(0, 0, 0, 0.4) 0%, transparent 100%);
    }
}