@charset "UTF-8";

/* =========================================
   一整骨院 - Modern White × Dark Gray
   ========================================= */

/* ----- Design Tokens ----- */
:root {
    --c-bg:        #ffffff;
    --c-bg-alt:    #f5f5f5;
    --c-text:      #1f1f1f;
    --c-text-sub:  #555555;
    --c-text-mute: #8a8a8a;
    --c-line:      #e6e6e6;
    --c-dark:      #2a2a2a;
    --c-dark-2:    #1a1a1a;
    --c-accent:    #2a2a2a;
    --c-line-green:#06c755;

    --ff-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
    --ff-en: "Cormorant Garamond", "Times New Roman", serif;

    --radius: 4px;
    --header-h: 72px;

    --max-w: 1200px;
    --pad-x: clamp(20px, 5vw, 64px);
}

/* ----- Reset ----- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-h);
}

body {
    margin: 0;
    font-family: var(--ff-jp);
    font-weight: 400;
    color: var(--c-text);
    background: var(--c-bg);
    line-height: 1.8;
    letter-spacing: 0.04em;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a   { color: inherit; text-decoration: none; transition: opacity .25s; }
a:hover { opacity: .65; }
ul  { list-style: none; padding: 0; margin: 0; }
button { font: inherit; cursor: pointer; background: none; border: 0; color: inherit; }


/* =========================================
   HEADER
   ========================================= */
.site-header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: var(--header-h);
    background: rgba(255,255,255,.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--c-line);
    z-index: 100;
}

.header-inner {
    max-width: var(--max-w);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--pad-x);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}
.logo-jp {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: .15em;
}
.logo-en {
    font-family: var(--ff-en);
    font-size: 11px;
    color: var(--c-text-mute);
    letter-spacing: .2em;
}

.global-nav ul {
    display: flex;
    gap: 32px;
    align-items: center;
}
.global-nav a {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: .12em;
}
.nav-cta {
    background: var(--c-dark);
    color: #fff !important;
    padding: 10px 20px;
    border-radius: var(--radius);
}
.nav-cta:hover { opacity: .85; }

/* Hamburger */
.nav-toggle {
    display: none;
    width: 32px;
    height: 24px;
    position: relative;
    z-index: 110;
}
.nav-toggle span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 1.5px;
    background: var(--c-text);
    transition: transform .3s, opacity .3s, top .3s;
}
.nav-toggle span:nth-child(1) { top: 4px; }
.nav-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle span:nth-child(3) { top: calc(100% - 4px); }
.nav-toggle.is-open span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { top: 50%; transform: translateY(-50%) rotate(-45deg); }


/* =========================================
   COMMON
   ========================================= */
.section {
    padding: clamp(72px, 12vw, 140px) 0;
}
.section-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--pad-x);
}

.section-head {
    text-align: center;
    margin-bottom: clamp(48px, 7vw, 80px);
}
.section-en {
    font-family: var(--ff-en);
    font-size: 14px;
    color: var(--c-text-mute);
    letter-spacing: .35em;
    margin: 0 0 16px;
    text-transform: uppercase;
}
.section-title {
    font-size: clamp(24px, 3.5vw, 36px);
    font-weight: 500;
    line-height: 1.6;
    margin: 0;
    letter-spacing: .08em;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 220px;
    height: 56px;
    padding: 0 28px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: .15em;
    border-radius: var(--radius);
    transition: opacity .25s, transform .25s, background .25s, color .25s;
}
.btn-primary {
    background: var(--c-dark);
    color: #fff;
}
.btn-primary:hover {
    background: var(--c-dark-2);
    opacity: 1;
}
.btn-ghost {
    background: transparent;
    color: var(--c-text);
    border: 1px solid var(--c-text);
}
.btn-ghost:hover {
    background: var(--c-text);
    color: #fff;
    opacity: 1;
}


/* =========================================
   1. HERO
   ========================================= */
.hero {
    position: relative;
    min-height: 100vh;
    padding-top: calc(var(--header-h) + 24px);
    padding-bottom: 96px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, #fafafa 0%, #ffffff 100%);
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, rgba(42,42,42,.04), transparent 50%),
                radial-gradient(circle at 20% 80%, rgba(42,42,42,.03), transparent 50%);
    pointer-events: none;
}

.hero-inner {
    position: relative;
    width: 100%;
    max-width: var(--max-w);
    padding: 0 var(--pad-x);
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: clamp(40px, 6vw, 80px);
    align-items: center;
}

.hero-text {
    text-align: left;
}

.hero-sub {
    font-family: var(--ff-en);
    font-size: 14px;
    letter-spacing: .4em;
    color: var(--c-text-mute);
    margin: 0 0 28px;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(30px, 4.4vw, 54px);
    font-weight: 500;
    line-height: 1.4;
    margin: 0 0 28px;
    letter-spacing: .06em;
}
.hero-title-en {
    display: block;
    margin-top: 14px;
    font-family: var(--ff-en);
    font-style: italic;
    font-weight: 400;
    color: var(--c-text-sub);
    font-size: .5em;
    letter-spacing: .08em;
}

.hero-lead {
    font-size: clamp(14px, 1.5vw, 16px);
    color: var(--c-text-sub);
    line-height: 2;
    margin: 0 0 40px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: flex-start;
}

/* Hero Visual (画像) */
.hero-visual {
    position: relative;
    width: 100%;
    max-width: 520px;
    justify-self: end;
}

.hero-img {
    margin: 0;
    overflow: hidden;
    border-radius: var(--radius);
    box-shadow: 0 24px 60px -24px rgba(0,0,0,.25);
    background: #eaeaea;
}
.hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.2s ease;
}
.hero-img:hover img { transform: scale(1.04); }

.hero-img-main {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 5;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--ff-en);
    font-size: 11px;
    letter-spacing: .35em;
    color: var(--c-text-mute);
}
.hero-scroll::after {
    content: "";
    display: block;
    width: 1px;
    height: 48px;
    background: var(--c-text-mute);
    margin: 12px auto 0;
    animation: scroll-line 2s ease-in-out infinite;
}
@keyframes scroll-line {
    0%, 100% { transform: scaleY(1); transform-origin: top; opacity: .4; }
    50%      { transform: scaleY(.4); transform-origin: top; opacity: 1; }
}


/* =========================================
   2. CONCEPT
   ========================================= */
.concept {
    background: var(--c-bg);
}

.concept-lead {
    text-align: center;
    font-size: clamp(15px, 1.8vw, 17px);
    color: var(--c-text-sub);
    line-height: 2.2;
    margin: 0 auto 80px;
    max-width: 720px;
}

.concept-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.concept-list li {
    padding: 48px 32px;
    border: 1px solid var(--c-line);
    background: #fff;
    transition: transform .35s, box-shadow .35s, border-color .35s;
}
.concept-list li:hover {
    transform: translateY(-4px);
    border-color: var(--c-dark);
    box-shadow: 0 12px 40px -16px rgba(0,0,0,.15);
}

.concept-num {
    font-family: var(--ff-en);
    font-size: 32px;
    color: var(--c-dark);
    margin: 0 0 24px;
    letter-spacing: .1em;
}
.concept-title {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 16px;
    letter-spacing: .08em;
}
.concept-text {
    font-size: 14px;
    color: var(--c-text-sub);
    margin: 0;
    line-height: 2;
}


/* =========================================
   3. MENU
   ========================================= */
.menu {
    background: var(--c-bg-alt);
}

.menu-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    background: var(--c-line);
    border: 1px solid var(--c-line);
}

.menu-item {
    background: #fff;
    padding: 40px;
    transition: background .25s;
}
.menu-item:hover { background: #fafafa; }

.menu-item-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 16px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--c-line);
}

.menu-name {
    font-size: 18px;
    font-weight: 700;
    margin: 0;
    letter-spacing: .08em;
}
.menu-name-en {
    display: block;
    margin-top: 6px;
    font-family: var(--ff-en);
    font-style: italic;
    font-size: 13px;
    color: var(--c-text-mute);
    font-weight: 400;
    letter-spacing: .1em;
}

.menu-price {
    font-size: 13px;
    font-weight: 500;
    color: var(--c-dark);
    margin: 0;
    white-space: nowrap;
    letter-spacing: .1em;
}

.menu-desc {
    font-size: 14px;
    color: var(--c-text-sub);
    margin: 0;
    line-height: 1.9;
}

.menu-note {
    margin: 32px 0 0;
    font-size: 17px;
    color: var(--c-text-mute);
    text-align: center;
    letter-spacing: .05em;
    line-height: 1.8;
}

/* ----- Pricing ----- */
.price-block {
    margin-top: clamp(64px, 9vw, 96px);
}

.price-head {
    text-align: center;
    margin-bottom: clamp(32px, 5vw, 56px);
}
.price-title {
    font-size: clamp(22px, 2.6vw, 28px);
    font-weight: 500;
    letter-spacing: .12em;
    margin: 12px 0 0;
}

.price-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    background: #fff;
    border: 1px solid var(--c-line);
    border-radius: var(--radius);
    overflow: hidden;
}

.price-item {
    padding: 40px 24px;
    text-align: center;
    border-right: 1px solid var(--c-line);
    transition: background .25s;
}
.price-item:last-child { border-right: 0; }
.price-item:hover { background: #fafafa; }

.price-label {
    font-size: 18px;
    font-weight: 700;
    margin: 0 0 4px;
    letter-spacing: .12em;
    color: var(--c-dark);
}
.price-label-sub {
    display: block;
    margin-top: 6px;
    font-family: var(--ff-en);
    font-style: italic;
    font-weight: 400;
    font-size: 12px;
    letter-spacing: .15em;
    color: var(--c-text-mute);
}

.price-time {
    margin: 16px 0 20px;
    font-size: 12px;
    letter-spacing: .15em;
    color: var(--c-text-sub);
    padding-top: 16px;
    border-top: 1px solid var(--c-line);
    display: inline-block;
    padding-left: 24px;
    padding-right: 24px;
}

.price-amount {
    margin: 0;
    color: var(--c-dark);
    line-height: 1;
}
.price-num {
    font-family: var(--ff-en);
    font-size: clamp(32px, 4vw, 42px);
    font-weight: 500;
    letter-spacing: .02em;
}
.price-unit {
    font-size: 14px;
    margin-left: 4px;
    letter-spacing: .1em;
}

.price-note {
    margin: 32px 0 0;
    font-size: 17px;
    color: var(--c-text-sub);
    text-align: center;
    line-height: 1.9;
    letter-spacing: .04em;
}
.price-note strong {
    color: var(--c-dark);
    font-weight: 700;
}


/* =========================================
   4. STORE INFO
   ========================================= */
.info {
    background: var(--c-bg);
}

.info-table-wrap {
    max-width: 880px;
    margin: 0 auto;
}

.info-table {
    margin: 0;
    border-top: 1px solid var(--c-line);
}
.info-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 24px;
    padding: 24px 8px;
    border-bottom: 1px solid var(--c-line);
}
.info-row dt {
    font-size: 13px;
    font-weight: 700;
    color: var(--c-dark);
    letter-spacing: .12em;
    padding-top: 2px;
}
.info-row dd {
    margin: 0;
    font-size: 14px;
    color: var(--c-text-sub);
    line-height: 1.9;
}
.info-row dd a { color: var(--c-dark); border-bottom: 1px solid currentColor; }

.info-map {
    margin-top: clamp(40px, 6vw, 64px);
    width: 100%;
}
.info-map iframe {
    width: 100%;
    aspect-ratio: 16 / 7;
    min-height: 320px;
    border: 1px solid var(--c-line);
    border-radius: var(--radius);
    display: block;
    filter: grayscale(.2) contrast(1.05);
}
.info-map-link {
    margin: 16px 0 0;
    text-align: right;
    font-size: 13px;
    letter-spacing: .08em;
}
.info-map-link a {
    color: var(--c-dark);
    border-bottom: 1px solid currentColor;
    padding-bottom: 2px;
}


/* =========================================
   5. LINE
   ========================================= */
.line-section {
    background: var(--c-dark);
    color: #fff;
}

.line-inner {
    text-align: center;
    max-width: 680px;
}

.line-en {
    color: rgba(255,255,255,.55);
}

.line-title {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 500;
    margin: 0 0 28px;
    letter-spacing: .1em;
    line-height: 1.5;
}

.line-lead {
    color: rgba(255,255,255,.75);
    font-size: 14px;
    line-height: 2;
    margin: 0 0 48px;
}

.line-btn {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 20px 44px;
    background: var(--c-line-green);
    color: #fff !important;
    border-radius: var(--radius);
    font-weight: 700;
    letter-spacing: .15em;
    transition: transform .25s, opacity .25s;
}
.line-btn:hover { transform: translateY(-2px); opacity: 1; }
.line-btn-icon {
    font-family: var(--ff-en);
    font-weight: 700;
    font-size: 18px;
    padding-right: 16px;
    border-right: 1px solid rgba(255,255,255,.4);
}
.line-btn-text {
    font-size: 15px;
}

.line-note {
    margin: 40px 0 0;
    color: rgba(255,255,255,.55);
    font-size: 12px;
    letter-spacing: .05em;
}


/* =========================================
   FOOTER
   ========================================= */
.site-footer {
    background: var(--c-dark-2);
    color: rgba(255,255,255,.7);
    padding: 56px 0 32px;
}
.footer-inner {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 var(--pad-x);
    text-align: center;
}
.footer-brand { margin-bottom: 24px; }
.footer-logo-jp {
    font-size: 16px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 6px;
    letter-spacing: .15em;
}
.footer-logo-en {
    font-family: var(--ff-en);
    font-size: 12px;
    color: rgba(255,255,255,.5);
    margin: 0;
    letter-spacing: .25em;
}
.footer-address {
    font-size: 13px;
    line-height: 1.9;
    margin: 0 0 32px;
}
.footer-copy {
    font-family: var(--ff-en);
    font-size: 11px;
    letter-spacing: .2em;
    color: rgba(255,255,255,.4);
    margin: 0;
}


/* =========================================
   RESPONSIVE - Tablet (≤960px)
   ========================================= */
@media (max-width: 960px) {
    .concept-list {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .info-map iframe { aspect-ratio: 4 / 3; }

    /* Hero - 1カラム化 */
    .hero { min-height: auto; padding-bottom: 80px; }
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 56px;
        text-align: center;
    }
    .hero-text { text-align: center; }
    .hero-actions { justify-content: center; }
    .hero-visual {
        margin: 0 auto;
        max-width: 440px;
    }
}


/* =========================================
   RESPONSIVE - Mobile (≤768px)
   ========================================= */
@media (max-width: 768px) {
    :root {
        --header-h: 60px;
    }

    /* Hamburger */
    .nav-toggle { display: block; }

    .global-nav {
        position: fixed;
        top: 0; right: 0;
        width: 100%;
        height: 100vh;
        background: #fff;
        padding: calc(var(--header-h) + 32px) var(--pad-x) 32px;
        transform: translateX(100%);
        transition: transform .35s ease;
    }
    .global-nav.is-open { transform: translateX(0); }
    .global-nav ul {
        flex-direction: column;
        gap: 0;
        align-items: stretch;
    }
    .global-nav li {
        border-bottom: 1px solid var(--c-line);
    }
    .global-nav a {
        display: block;
        padding: 24px 8px;
        font-size: 15px;
    }
    .nav-cta {
        margin-top: 24px;
        text-align: center;
        border-radius: var(--radius);
        border-bottom: 0 !important;
    }
    .global-nav li:has(.nav-cta) { border-bottom: 0; }

    /* Hero */
    .hero { padding-bottom: 64px; }
    .hero-inner { gap: 40px; }
    .hero-actions { flex-direction: column; align-items: stretch; }
    .btn { width: 100%; min-width: 0; }
    .hero-visual { max-width: 320px; }

    /* Menu */
    .menu-list {
        grid-template-columns: 1fr;
    }
    .menu-item { padding: 28px 24px; }
    .menu-item-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    /* Pricing - 縦並び */
    .price-list { grid-template-columns: 1fr; }
    .price-item {
        border-right: 0;
        border-bottom: 1px solid var(--c-line);
        padding: 32px 20px;
    }
    .price-item:last-child { border-bottom: 0; }

    /* Info */
    .info-row {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 20px 4px;
    }

    /* Line */
    .line-btn {
        width: 100%;
        padding: 20px 24px;
    }

    /* Concept card */
    .concept-list li { padding: 36px 24px; }
}


/* =========================================
   RESPONSIVE - Small Mobile (≤480px)
   ========================================= */
@media (max-width: 480px) {
    .hero-title { letter-spacing: .04em; }
    .section-title { letter-spacing: .05em; }
}