/* =========================================================================
   Base & Variables
   ========================================================================= */
:root {
    --color-text: #1a1a1a;
    --color-text-light: #555555;
    --color-bg: #ffffff;
    --color-bg-light: #f7f7f7;
    --color-accent: #0f172a;
    /* 深みのあるネイビーブルー系で洗練さと力強さを表現 */
    --color-border: #e2e8f0;
    --color-white: #ffffff;

    --font-heading: 'Noto Sans JP', sans-serif;
    --font-body: 'Noto Sans JP', sans-serif;
    --font-en: 'Inter', sans-serif;

    --transition-fast: 0.3s ease;
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);

    --header-height: 80px;
}

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

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

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

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

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

ul {
    list-style: none;
}

/* =========================================================================
   Layout & Utility
   ========================================================================= */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.container-narrow {
    max-width: 800px;
}

.container-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8%;
}

.section {
    padding: 120px 0;
}

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

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

.sp-br {
    display: none;
}

/* =========================================================================
   Typography
   ========================================================================= */
.section-title {
    font-family: var(--font-en);
    font-size: 2.5rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    margin-bottom: 60px;
    text-align: center;
    position: relative;
}

.section-subtitle {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-light);
    margin-top: 10px;
    letter-spacing: 0.15em;
}

/* =========================================================================
   Buttons
   ========================================================================= */
.btn {
    display: inline-block;
    padding: 18px 48px;
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1rem;
    letter-spacing: 0.1em;
    border: 1px solid var(--color-accent);
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
}

.btn-hero,
.btn-cta {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}

.btn-hero:hover,
.btn-cta:hover {
    background-color: var(--color-white);
    color: var(--color-accent);
}

/* =========================================================================
   Header & Navigation
   ========================================================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: transparent;
    z-index: 1000;
    transition: background-color var(--transition-fast), border-bottom var(--transition-fast);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header.scrolled {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
}

.header-container {
    max-width: 1400px;
    height: 100%;
    margin: 0 auto;
    padding: 0 4%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-en);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-white);
    transition: color var(--transition-fast);
    letter-spacing: 0.05em;
}

.header.scrolled .logo,
.header.scrolled .nav-link {
    color: var(--color-accent);
}

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

.nav-link {
    font-family: var(--font-en);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-white);
    letter-spacing: 0.1em;
    position: relative;
    padding-bottom: 5px;
}

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

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 1001;
}

.menu-toggle .bar {
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: var(--color-white);
    transition: var(--transition-fast);
    left: 0;
}

.header.scrolled .menu-toggle .bar {
    background-color: var(--color-accent);
}

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

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

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

.menu-toggle.active .bar:nth-child(1) {
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    background-color: var(--color-accent);
}

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

.menu-toggle.active .bar:nth-child(3) {
    bottom: 50%;
    transform: translateY(50%) rotate(-45deg);
    background-color: var(--color-accent);
}

/* =========================================================================
   Hero Section
   ========================================================================= */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    background-image: url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?q=80&w=2070&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--color-white);
    padding: 0 20px;
    max-width: 900px;
}

.hero-catch {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: 0.05em;
    line-height: 1.3;
}

.hero-sub {
    font-size: 1.1rem;
    font-weight: 400;
    margin-bottom: 50px;
    letter-spacing: 0.1em;
    opacity: 0.9;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--color-white);
    font-family: var(--font-en);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    z-index: 1;
}

.scroll-indicator .arrow {
    width: 1px;
    height: 60px;
    background-color: rgba(255, 255, 255, 0.3);
    margin-top: 15px;
    position: relative;
    overflow: hidden;
}

.scroll-indicator .arrow::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background-color: var(--color-white);
    animation: scrollDown 2s infinite ease-in-out;
}

@keyframes scrollDown {
    0% {
        transform: translateY(-100%);
    }

    100% {
        transform: translateY(200%);
    }
}

/* =========================================================================
   Concept Section
   ========================================================================= */
.concept-image {
    width: 45%;
    position: relative;
}

.concept-image img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
    z-index: 1;
    position: relative;
}

.image-accent {
    position: absolute;
    top: -20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 1px solid var(--color-accent);
    z-index: 0;
}

.concept-text {
    width: 45%;
}

.concept-text .section-title {
    text-align: left;
}

.concept-description {
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 2;
}

/* =========================================================================
   Services Section (Minimal Table Structure variant)
   ========================================================================= */
.services-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--color-border);
}

.service-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 40px 0;
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-fast);
}

.service-card:hover {
    padding-left: 20px;
    padding-right: 20px;
    background-color: var(--color-white);
}

.service-content {
    flex: 1;
    padding-right: 40px;
}

.service-name {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--color-accent);
}

.service-desc {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.service-price {
    font-family: var(--font-en);
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--color-accent);
    white-space: nowrap;
}

.price-unit {
    font-size: 1rem;
    font-weight: 400;
    color: var(--color-text-light);
}

/* =========================================================================
   Gallery Section
   ========================================================================= */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1/1;
    background-color: var(--color-bg-light);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, transparent 100%);
    color: var(--color-white);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-fast);
}

.gallery-caption span {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.1em;
}

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

.gallery-item:hover .gallery-caption {
    opacity: 1;
    transform: translateY(0);
}

/* =========================================================================
   Access Section
   ========================================================================= */
.info-card {
    background-color: var(--color-white);
    padding: 60px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--color-border);
}

.info-shop-name {
    font-family: var(--font-en);
    font-size: 1.8rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 40px;
    letter-spacing: 0.1em;
}

.info-list li {
    display: flex;
    padding: 20px 0;
    border-bottom: 1px dashed var(--color-border);
}

.info-list li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.info-label {
    width: 30%;
    font-family: var(--font-en);
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.05em;
}

.info-value {
    width: 70%;
    color: var(--color-text-light);
}

/* =========================================================================
   CTA Section
   ========================================================================= */
.cta {
    position: relative;
    padding: 150px 0;
    background-image: url('https://images.unsplash.com/photo-1574680096145-d05b474e2155?q=80&w=2069&auto=format&fit=crop');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.85);
    /* 深いネイビーで画面を引き締める */
}

.cta-message {
    color: var(--color-white);
    font-size: 2.5rem;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 50px;
    letter-spacing: 0.05em;
}

.cta .btn-cta {
    background-color: var(--color-white);
    color: var(--color-accent);
    border-color: var(--color-white);
    font-size: 1.1rem;
    padding: 20px 60px;
}

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

/* =========================================================================
   Footer
   ========================================================================= */
.footer {
    background-color: var(--color-accent);
    color: var(--color-white);
    padding: 80px 0 40px;
}

.footer-logo {
    font-family: var(--font-en);
    font-size: 1.8rem;
    letter-spacing: 0.1em;
    margin-bottom: 40px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 60px;
}

.footer-links a {
    font-family: var(--font-en);
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    opacity: 0.7;
}

.footer-links a:hover {
    opacity: 1;
}

.copyright {
    font-family: var(--font-en);
    font-size: 0.8rem;
    opacity: 0.5;
    letter-spacing: 0.05em;
}

/* =========================================================================
   Animations (Intersection Observer targets)
   ========================================================================= */
.observer-target {
    opacity: 0;
    transition: all 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up {
    transform: translateY(30px);
}

.slide-in-left {
    transform: translateX(-40px);
}

.slide-in-right {
    transform: translateX(40px);
}

.observer-target.is-visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* =========================================================================
   Responsive Design
   ========================================================================= */
@media (max-width: 1024px) {
    .hero-catch {
        font-size: 3rem;
    }

    .container-flex {
        flex-direction: column;
        gap: 60px;
    }

    .concept-image,
    .concept-text {
        width: 100%;
    }

    .image-accent {
        display: none;
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .service-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        padding: 40px 20px;
    }

    .service-price {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 80px 0;
    }

    .section-title {
        font-size: 2rem;
        margin-bottom: 40px;
    }

    .sp-br {
        display: block;
    }

    .hero-catch {
        font-size: 2.2rem;
    }

    .hero-sub {
        font-size: 1rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .gallery-caption {
        opacity: 1;
        transform: translateY(0);
        padding: 15px;
        background: rgba(0, 0, 0, 0.5);
    }

    .info-card {
        padding: 30px 20px;
    }

    .info-list li {
        flex-direction: column;
        gap: 10px;
    }

    .info-label,
    .info-value {
        width: 100%;
    }

    .cta {
        padding: 100px 0;
    }

    .cta-message {
        font-size: 1.8rem;
    }

    .cta .btn-cta {
        padding: 16px 40px;
        width: 100%;
    }

    /* Mobile Navigation */
    .menu-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 400px;
        height: 100vh;
        background-color: var(--color-white);
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        transition: right var(--transition-slow);
        display: flex;
        align-items: center;
        justify-content: center;
    }

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

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

    .nav-link {
        color: var(--color-accent);
        font-size: 1.2rem;
    }
}