/* 햄버거 버튼: PC에서는 숨김 */

.menu-button {
    display: none;
    width: 42px;
    height: 42px;
    padding: 10px;
    background: transparent;
    border: 0;
    cursor: pointer;
}

.menu-button span {
    display: block;
    width: 100%;
    height: 1px;
    margin: 6px 0;
    background-color: var(--text-main);
    transition:
        transform 0.3s ease,
        opacity 0.3s ease;
}

/* 모바일 헤더 */

@media (max-width: 767px) {
    header {
        padding: 16px 20px;
    }

    .logo {
        position: relative;
        z-index: 1002;
        font-size: 1.2rem;
    }

 

    .menu-button {
        position: relative;
        z-index: 1002;
        display: block;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: 0;
        width: min(82%, 320px);
        height: 100vh;
        padding: 110px 36px 40px;
        background: rgba(242, 242, 242, 0.97);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        box-shadow: -12px 0 30px rgba(0, 0, 0, 0.08);

        visibility: hidden;
        opacity: 0;
        transform: translateX(100%);
        transition:
            transform 0.35s ease,
            opacity 0.35s ease,
            visibility 0.35s;
    }

    .main-nav.is-open {
        visibility: visible;
        opacity: 1;
        transform: translateX(0);
    }

    .main-nav ul {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
    }

    .main-nav li {
        width: 100%;
        font-size: 8px;
        border-bottom: 1px solid rgba(44, 42, 41, 0.1);
    }

    .main-nav a {
        display: block;
        width: 100%;
        padding: 18px 4px;
        font-size: 5px;
        letter-spacing: 0.18em;
    }

    /* 메뉴가 열렸을 때 X 표시 */

    .menu-button.is-open span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .menu-button.is-open span:nth-child(2) {
        opacity: 0;
    }

    .menu-button.is-open span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    body.menu-open {
        overflow: hidden;
    }
}

/* --- Design --- */
:root {
    --bg-color: #f2f2f2;
    --card-bg: #ffffff;
    --text-main: #1a1a1a;
    --text-sub: #666666;
    --accent-purple: #705294; /* 会議で話題に出たラベンダー/パープル系 */
    --border-color: #e0e0e0;
    --font-main: 'Noto Sans JP', sans-serif;
    --font-logo: 'Copperplate', 'Copperplate Gothic Bold', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-main);
    line-height: 1.8;
    letter-spacing: 0.08em;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

/* --- Headerー --- */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(242, 242, 242, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-logo);
    font-size: 1.5rem;
    letter-spacing: 0.25em;
    font-weight: bold;
    color: var(--accent-purple);
}

.logo a, 
.logo a img {
    display: block;
    width: 50px;
    height: auto;
    }

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

nav a:hover {
    color: var(--accent-purple);
    transition: color 0.3s ease;
}

/* --- heroSection --- */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 20px;
    background: linear-gradient(135deg, #e6e6e6 0%, #f9f9f9 100%);
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.hero-ambient {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.hero > img {
    display: block;
    width: 300px;           
    height: auto;          
    position: relative;
    z-index: 1;            
}
.hero-glow-cursor {
    position: absolute;
    width: 380px;
    height: 380px;
    border-radius: 50%;
    background: radial-gradient(circle,
        rgba(149, 133, 186, 0.22) 0%,
        rgba(149, 133, 186, 0.10) 42%,
        rgba(255, 255, 255, 0) 72%);
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity .35s ease;
    filter: blur(2px);
    pointer-events: none;
}

.ambient-chip {
    position: absolute;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 18px;
    border: 1px solid rgba(112, 82, 148, 0.14);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.22);
    color: rgba(44, 42, 41, 0.18);
    text-decoration: none;
    cursor: pointer;
    box-shadow:
        0 0 24px rgba(157, 112, 218, 0.58),
        0 0 46px rgba(190, 155, 235, 0.30);
    font-family: 'Shippori Mincho', serif;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .12em;
    white-space: nowrap;
    pointer-events: auto;
    cursor: pointer;
    will-change: transform, opacity, color, box-shadow;
    animation: ambientFloat 6s ease-in-out infinite;
    transition: color .25s ease, border-color .25s ease,
                background .25s ease, box-shadow .25s ease;
                transition:
        color 0.3s ease,
        border-color 0.3s ease,
        background-color 0.3s ease,
        box-shadow 0.3s ease,
        transform 0.3s ease;
}

.ambient-chip:nth-of-type(1) { animation-duration: 6.4s; animation-delay: -.8s; }
.ambient-chip:nth-of-type(2) { animation-duration: 7.1s; animation-delay: -2.1s; }
.ambient-chip:nth-of-type(3) { animation-duration: 5.8s; animation-delay: -3.4s; }
.ambient-chip:nth-of-type(4) { animation-duration: 7.6s; animation-delay: -1.5s; }
.ambient-chip:nth-of-type(5) { animation-duration: 6.1s; animation-delay: -4.2s; }
.ambient-chip:nth-of-type(6) { animation-duration: 7.3s; animation-delay: -2.7s; }
.ambient-chip:nth-of-type(7) { animation-duration: 5.6s; animation-delay: -1.1s; }
.ambient-chip:nth-of-type(8) { animation-duration: 6.8s; animation-delay: -3.8s; }

@keyframes ambientFloat {
    0%, 100% { transform: translate3d(0, 0, 0); opacity: .34; }
    50% { transform: translate3d(0, -13px, 0); opacity: .66; }
}

.hero > h1,
.hero > .subtitle,
.hero > .catchphrase {
    position: relative;
    z-index: 2;
}

@media (max-width: 720px) {
    .ambient-chip { font-size: 9px; padding: 7px 12px; }
    .hero-glow-cursor { width: 280px; height: 280px; }
}

@media (max-width: 720px) {
    .ambient-chip {
        font-size: 9px;
        padding: 7px 12px;
    }

    .hero-glow-cursor {
        width: 280px;
        height: 280px;
    }

    /* 아래쪽 칩들 위치 조정 - 텍스트와 겹치지 않게 */
    .ambient-chip[style*="bottom:30%"] { bottom: 22% !important; }
    .ambient-chip[style*="bottom:28%"] { bottom: 20% !important; }
    .ambient-chip[style*="bottom:9%"]  { bottom: 4% !important; }
    .ambient-chip[style*="bottom:7%"]  { bottom: 2% !important; }
}

@media (prefers-reduced-motion: reduce) {
    .ambient-chip { animation: none; }
    .hero-glow-cursor { display: none; }
}

.hero h1 {
    font-family: var(--font-logo);
    font-size: 3.5rem;
    letter-spacing: 0.3em;
    margin-bottom: 10px;
    font-weight: 300;
    color: var(--text-main);
}

.hero .subtitle {
    font-size: 1rem;
    color: var(--accent-purple);
    letter-spacing: 0.2em;
    margin-bottom: 30px;
    font-weight: 500;
}

.hero .catchphrase {
    font-size: 1.1rem;
    color: var(--text-sub);
    font-weight: 300;
    max-width: 600px;
    line-height: 2;
}
body {
    font-family: 'Shippori Mincho', serif;
    color: #2C2A29;
}
html {
    scroll-behavior: smooth;
}

/* ========================================
   SECTION 1：CONCEPT
======================================== */

.section1 {
    padding: 2rem 0;
    
    border-top: 1px solid #f0ede5;
    border-bottom: 1px solid #f0ede5;
}

.section1-inner {
    width: 100%;
    max-width: 64rem;
    margin: 0 auto;
    padding: 0 2rem;
    box-sizing: border-box;
}

.section1-header {
    max-width: 42rem;
    margin: 0 auto 1rem;
    text-align: center;
}

.section1-label {
    display: block;
    margin-bottom: 0.75rem;
    color: #9585ba;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.section1-title {
    margin: 0 0 1.5rem;
    color: #2c2a29;
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.625;
    letter-spacing: 0.1em;
}

.section1-divider {
    width: 3rem;
    height: 1px;
    margin: 0 auto 1.5rem;
    background-color: #9585ba;
}

.section1-lead {
    margin: 0;
    color: rgba(44, 42, 41, 0.7);
    font-size: 0.75rem;
    font-weight: 300;
    line-height: 2;
}




/* PC・Tablet */

@media (min-width: 768px) {
    .section1-title {
        font-size: 1.875rem;
        letter-spacing: 0.15em;
    }

    .section1-list {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .section1-item {
        border-top: none;
        border-left: 1px solid #f0ede5;
    }

    .section1-item:first-child {
        border-left: none;
    }
}

/* ========================================
   SECTION 2：PRODUCTS
======================================== */

.section2 {
    padding: 7rem 0;
    background: #f9f9f9 100%;
}

.section2-inner {
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    padding: 0 2rem;
    box-sizing: border-box;
}

.section2-header {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    margin-bottom: 4rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #f0ede5;
}

.section2-label {
    display: block;
    margin-bottom: 0.5rem;
    color: #9585ba;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.section2-heading {
    margin: 0;
    color: #2c2a29;
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.625;
    letter-spacing: 0.1em;
}

.section2-description {
    margin: 1rem 0 0;
    color: rgba(44, 42, 41, 0.6);
    font-size: 0.75rem;
    font-weight: 300;
    line-height: 1.625;
    letter-spacing: 0.1em;
}

.section2-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.section2-item {
    min-width: 0;
}

.section2-image {
    position: relative;
    overflow: hidden;
    width: 100%;
    margin-bottom: 1rem;
    background-color: #f0ede5;
    aspect-ratio: 4 / 5;
}

.section2-photo {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%);
    transition: transform 0.7s ease;
}

.section2-item:hover .section2-photo {
    transform: scale(1.05);
}

.section2-category {
    display: block;
    margin-bottom: 0.25rem;
    color: #9585ba;
    font-size: 9px;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: 0.1em;
}

.section2-title {
    margin: 0 0 0.5rem;
    color: #2c2a29;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1.6;
    letter-spacing: 0.05em;
}

.section2-text {
    margin: 0;
    color: rgba(44, 42, 41, 0.6);
    font-size: 11px;
    font-weight: 300;
    line-height: 1.625;
}

/* PC・Tablet */

@media (min-width: 768px) {
    .section2-header {
        flex-direction: row;
        align-items: flex-end;
    }

    .section2-heading {
        font-size: 1.875rem;
        letter-spacing: 0.1em;
    }

    .section2-description {
        margin-top: 0;
    }

    .section2-list {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }
}

/* ========================================
   SECTION 3：SERVICES
======================================== */

.section3 {
    padding: 7rem 0;
    background: #f9f9f9 100%;
    border-top: 1px solid #f0ede5;
    border-bottom: 1px solid #f0ede5;
}

.section3-inner {
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    padding: 0 2rem;
    box-sizing: border-box;
}

.section3-header {
    margin-bottom: 5rem;
    text-align: center;
}

.section3-label {
    display: block;
    margin-bottom: 0.5rem;
    color: #9585ba;
    font-size: 10px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 0.3em;
    text-transform: uppercase;
}

.section3-heading {
    margin: 0;
    color: #2c2a29;
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.625;
    letter-spacing: 0.1em;
}

.section3-layout {
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    gap: 3rem;
}

.section3-feature {
    min-width: 0;
    padding: 1.5rem;
    background-color: #f9f9f9 100%;
    border: 1px solid #f0ede5;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.section3-feature-label {
    margin-bottom: 1rem;
    color: #9585ba;
    font-family: "Shippori Mincho", "Times New Roman", serif;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.section3-image {
    position: relative;
    overflow: hidden;
    width: 100%;
    margin-bottom: 1.5rem;
    background-color: #f0ede5;
    border: 1px solid #f0ede5;
    aspect-ratio: 4 / 3;
}

.section3-photo {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(10%);
}

.section3-feature-title {
    margin: 0 0 0.75rem;
    color: #2c2a29;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.7;
    letter-spacing: 0.1em;
}

.section3-text {
    margin: 0;
    color: rgba(44, 42, 41, 0.6);
    font-size: 0.75rem;
    font-weight: 300;
    line-height: 1.625;
}

.section3-list {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.section3-item {
    position: relative;
    padding-left: 2rem;
}

.section3-number {
    position: absolute;
    top: 0.25rem;
    left: 0;
    color: #9585ba;
    font-family: "Shippori Mincho", "Times New Roman", serif;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1.5;
}

.section3-item-title {
    margin: 0 0 0.5rem;
    color: #2c2a29;
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.6;
    letter-spacing: 0.05em;
}

/* PC・Tablet */

@media (min-width: 768px) {
    .section3-heading {
        font-size: 1.875rem;
        letter-spacing: 0.1em;
    }

    .section3-layout {
        grid-template-columns: repeat(12, minmax(0, 1fr));
    }

    .section3-feature {
        grid-column: span 6 / span 6;
    }

    .section3-list {
        grid-column: span 6 / span 6;
        padding-left: 1.5rem;
    }
}

/* ========================================
   SECTION 4：REAL SPACE
======================================== */

.section4 {
    position: relative;
    padding: 9rem 0;
    color: #131313;
    background-image:
        
        url("images/bg14-1.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}

.section4-inner {
    width: 100%;
    max-width: 48rem;
    margin: 0 auto;
    padding: 0 1.5rem;
    text-align: center;
    box-sizing: border-box;
}

.section4-label {
    display: block;
    margin-bottom: 1rem;
    color: #9585ba;
    font-size: 10px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 0.4em;
    text-transform: uppercase;
}

.section4-heading {
    margin: 0 0 1.5rem;
    color: #ffffff;
    font-size: 1.5rem;
    font-weight: 300;
    line-height: 2;
    letter-spacing: 0.1em;
}

.section4-break {
    display: inline;
}

.section4-text {
    max-width: 43rem;
    margin: 0 auto 2.5rem;
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 350;
    line-height: 2;
    letter-spacing: 0.1em;
    margin-top: 170px;
}

.section4-badge {
    display: inline-block;
    padding: 0.875rem 1.5rem;
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 0.125rem;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    font-size: 9px;
    font-weight: 500;
    line-height: 1.5;
    letter-spacing: 0.2em;
}

/* PC・Tablet */

@media (min-width: 768px) {
    .section4-heading {
        font-size: 1.875rem;
        letter-spacing: 0.1em;
    }

    .section4-break {
        display: none;
    }

    .section4-text {
        font-size: 0.875rem;
    }
}

/* ========================================
   FOOTER
======================================== */

.footer {
    padding: 5rem 0 3rem;
    color: #faf9f5;
    background-color: #f9f9f9 100%;;
}

.footer-inner {
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    padding: 0 2rem;
    box-sizing: border-box;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-company {
    min-width: 0;
}

.footer-logo {
    margin: 0 0 1rem;
    color: #9585ba;
    font-size: 1.125rem;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 0.1em;
}

.footer-heading {
    margin: 0 0 1rem;
    color: #9585ba;
    font-size: 10px;
    font-weight: 700;
    line-height: 1.5;
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.footer-text {
    margin: 0;
    color: rgba(24, 24, 24, 0.7);
    font-size: 0.75rem;
    font-weight: 300;
    line-height: 2;
}

.footer-company-text {
    max-width: 24rem;
}

.footer-menu {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 0;
    padding: 0;
    color: rgba(46, 46, 46, 0.7);
    font-size: 0.75rem;
    font-weight: 300;
    line-height: 1.5;
    list-style: none;
}

.footer-link {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: #9585ba;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-top: 2rem;
    color: rgba(46, 46, 46, 0.7);
    border-top: 1px solid rgba(250, 249, 245, 0.1);
    font-size: 10px;
    font-weight: 300;
    line-height: 1.6;
}

.footer-copyright {
    margin: 0;
    text-align: center;
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

/* PC・Tablet */

@media (min-width: 768px) {
    .footer-content {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .footer-company {
        grid-column: span 2 / span 2;
    }

    .footer-bottom {
        flex-direction: row;
    }

    .footer-copyright {
        text-align: left;
    }
}


.section1-image-wrap {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 10px;
}

.section1-main-image {
    width: 600px;
    max-width: 90%;
    height: auto;
    object-fit: contain;
}