:root {
    --color-bg: #FFFFFF;
    --color-fg: #111111;
    --color-muted: #888888;
    --font-sans: 'Inter', 'Noto Sans KR', sans-serif;
    --font-serif: 'Playfair Display', serif;
    --ease-antigravity: cubic-bezier(0.19, 1, 0.22, 1);

    /* 8pt Grid Fluid Spacing */
    --space-xs: clamp(0.25rem, 0.5vw, 0.5rem);
    --space-sm: clamp(0.5rem, 1vw, 1rem);
    --space-md: clamp(1rem, 2vw, 2rem);
    --space-lg: clamp(2rem, 4vw, 4rem);
    --space-xl: clamp(4rem, 8vw, 8rem);
}

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

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

body {
    margin: 0;
    background-color: var(--color-bg);
    color: var(--color-fg);
    font-family: var(--font-sans);
    line-height: 1.6;
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.02em;
}

/* ============================
   HEADER — Always Black Text
   ============================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--space-md);
    z-index: 100;
    transition: transform 0.8s var(--ease-antigravity),
        background-color 0.5s var(--ease-antigravity);
    color: var(--color-fg);
}

.header--scrolled {
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}

.header--hidden {
    transform: translateY(-100%);
}

.header__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header__logo {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 1vw + 1rem, 1.5rem);
    letter-spacing: 0.05em;
    z-index: 101;
    position: relative;
}

.header__nav {
    display: flex;
    gap: var(--space-md);
    z-index: 100;
}

/* Nav Groups & Dropdown */
.nav-group {
    position: relative;
}

.nav__link {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: opacity 0.3s ease;
    display: inline-block;
    padding-bottom: 0.5rem;
}

.nav__link:hover {
    opacity: 0.5;
}

.nav__dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.25rem 1.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.4s var(--ease-antigravity), transform 0.4s var(--ease-antigravity), visibility 0.4s;
    min-width: 14rem;
    pointer-events: none;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 4px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.nav-group:hover .nav__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.nav__dropdown a {
    font-size: 0.75rem;
    color: var(--color-fg);
    opacity: 0.5;
    transition: opacity 0.3s;
    letter-spacing: 0.02em;
}

.nav__dropdown a:hover {
    opacity: 1;
}

/* Hamburger */
.header__menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
    position: relative;
    width: 28px;
    height: 16px;
    flex-direction: column;
    justify-content: space-between;
    padding: 0;
}

.header__menu-btn span {
    display: block;
    height: 1.5px;
    width: 100%;
    background-color: var(--color-fg);
    transition: all 0.4s var(--ease-antigravity);
    transform-origin: center;
}

/* ============================
   HERO — Full Viewport, No Scroll
   ============================ */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--space-md);
    background-image: url('../img/hero_bg.png');
    background-size: cover;
    background-position: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.35);
    z-index: 0;
}

/* White gradient at top — helps readability if dark bg image is used */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 160px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.6), transparent);
    z-index: 0;
    pointer-events: none;
}

.hero__title {
    position: relative;
    z-index: 1;
    font-family: var(--font-serif);
    font-size: clamp(3rem, 10vw + 0.5rem, 7rem);
    margin-bottom: var(--space-xs);
    letter-spacing: 0.02em;
}

.hero__subtitle {
    position: relative;
    z-index: 1;
    font-size: clamp(0.75rem, 0.8vw + 0.5rem, 1rem);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    font-weight: 400;
}

.accent-italic {
    font-style: italic;
    font-weight: 300;
}

/* ============================
   MAIN PAGE — No Scroll Layout
   ============================ */
body.page-home {
    height: 100vh;
    overflow: hidden;
}

body.page-home .footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    z-index: 10;
}

/* ============================
   SUB PAGE — Page Hero Banner
   ============================ */
.page-hero {
    padding: calc(var(--space-xl) + 4rem) var(--space-md) var(--space-lg);
    text-align: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.page-hero__title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw + 1rem, 5rem);
    margin-bottom: var(--space-xs);
}

.page-hero__subtitle {
    font-size: clamp(0.8rem, 0.8vw + 0.5rem, 1rem);
    color: var(--color-muted);
    letter-spacing: 0.1em;
}

/* Sub Page Content */
.page-content {
    max-width: 960px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
}

.page-content h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 2vw + 0.5rem, 2.5rem);
    margin-bottom: var(--space-sm);
}

.page-content h3 {
    font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.5rem);
    margin-bottom: var(--space-xs);
    font-weight: 500;
}

.page-content p {
    margin: 0 0 1.5rem 0;
    line-height: 1.85;
    color: #444;
}

.page-content blockquote {
    margin: var(--space-md) 0;
    padding: var(--space-sm) var(--space-md);
    border-left: 3px solid var(--color-fg);
    font-style: italic;
    color: #555;
    line-height: 1.9;
}

.page-content .divider {
    width: 60px;
    height: 1px;
    background: rgba(0, 0, 0, 0.12);
    margin: var(--space-md) auto;
}

/* Timeline */
.timeline {
    list-style: none;
    padding: 0;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(0, 0, 0, 0.08);
    transform: translateX(-50%);
}

.timeline__item {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    position: relative;
}

.timeline__item:nth-child(even) {
    flex-direction: row-reverse;
    text-align: right;
}

.timeline__year {
    flex: 0 0 120px;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    padding-top: 0.2rem;
}

.timeline__content {
    flex: 1;
}

.timeline__content h4 {
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.timeline__content p {
    font-size: 0.875rem;
    color: var(--color-muted);
    line-height: 1.7;
    margin: 0;
}

/* Two-column layout for sub-pages */
.split-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    align-items: start;
    margin-bottom: var(--space-xs);
}

.split-section__image {
    width: 100%;
    aspect-ratio: 3/2;
    object-fit: cover;
    border-radius: 2px;
    background: #f5f5f5;
}

/* Feature cards */
.features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs);
    margin-top: var(--space-lg);
}

.feature-card {
    padding: var(--space-xs);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

.feature-card h4 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--color-muted);
    margin: 0;
    line-height: 1.7;
}

/* Map */
.map-container {
    width: 100%;
    height: 400px;
    margin-top: var(--space-md);
    border-radius: 2px;
    overflow: hidden;
}

.map-container--full {
    width: 100%;
    height: 450px;
    overflow: hidden;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.map-container--full iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

/* Contact Info */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.contact-grid__item {
    text-align: center;
    padding: var(--space-md);
}

.contact-grid__item .label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-muted);
    margin-bottom: 0.5rem;
}

.contact-grid__item .value {
    font-size: 0.95rem;
}

/* ============================
   PROJECT CARDS
   ============================ */
.project-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.project-card {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    background: #fafafa;
    transition: transform 0.5s var(--ease-antigravity), box-shadow 0.5s var(--ease-antigravity);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
}

.project-card__image {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    display: block;
    transition: transform 0.8s var(--ease-antigravity);
}

.project-card:hover .project-card__image {
    transform: scale(1.03);
}

.project-card__body {
    padding: var(--space-sm) var(--space-md) var(--space-md);
}

.project-card__title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 400;
}

.project-card__desc {
    font-size: 0.85rem;
    color: var(--color-muted);
    line-height: 1.7;
    margin: 0;
}

/* Project detail sections */
.project-detail {
    max-width: 960px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
    border-top: 1px solid rgba(0, 0, 0, 0.04);
}

.project-detail__header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.project-detail__number {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    color: rgba(0, 0, 0, 0.08);
    line-height: 1;
    flex-shrink: 0;
}

.project-detail h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 2vw + 0.5rem, 2.5rem);
    margin-bottom: 0;
}

.project-detail h3 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    margin-top: var(--space-md);
}

.project-detail p {
    margin: 0 0 1rem 0;
    line-height: 1.85;
    color: #444;
}

.project-detail .split-section {
    margin-top: var(--space-md);
}

/* Others page - section cards */
.others-section {
    max-width: 960px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
}

.others-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    align-items: center;
    margin-bottom: var(--space-xl);
}

.others-card:nth-child(even) {
    direction: rtl;
}

.others-card:nth-child(even)>* {
    direction: ltr;
}

.others-card__image {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    border-radius: 4px;
    background: #f5f5f5;
}

.others-card__content h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.4rem, 2vw, 2rem);
    margin-bottom: var(--space-xs);
}

.others-card__content h3 {
    font-size: 0.85rem;
    color: var(--color-muted);
    font-weight: 400;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.others-card__content p {
    font-size: 0.9rem;
    color: #555;
    line-height: 1.8;
    margin: 0 0 1rem;
}

/* ============================
   FOOTER
   ============================ */
.footer {
    padding: var(--space-md) var(--space-md);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 0.7rem;
    color: var(--color-muted);
    background: var(--color-bg);
}

.footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.footer__contents p {
    margin: 0 0 0.25rem 0;
    line-height: 1.6;
}

.footer__contents p:last-child {
    margin-bottom: 0;
}

.footer__copyright strong {
    font-weight: 500;
    color: var(--color-fg);
}

/* ============================
   GALLERY (kept for sub-pages)
   ============================ */
.gallery {
    padding: 0 var(--space-md) var(--space-xl);
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--space-lg) var(--space-md);
}

.gallery-item {
    grid-column: span 6;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    cursor: pointer;
}

.gallery-item:nth-child(even) {
    grid-column: 6 / span 7;
    margin-top: var(--space-xl);
}

.gallery-item__image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 5;
    overflow: hidden;
    background-color: #F8F8F8;
    border-radius: 2px;
}

.gallery-item__image {
    width: 100%;
    height: 115%;
    object-fit: cover;
    transform-origin: center;
    will-change: transform;
    transition: transform 1.2s var(--ease-antigravity);
}

.gallery-item:hover .gallery-item__image {
    transform: scale(1.03) translateY(-3%);
}

.gallery-item:hover .gallery-item__image-wrapper {
    box-shadow: 0 32px 64px rgba(0, 0, 0, 0.08);
    transition: box-shadow 1.2s var(--ease-antigravity);
}

.gallery-item__info {
    padding-left: 4px;
}

.gallery-item__title {
    font-size: clamp(1.25rem, 2vw + 0.5rem, 2rem);
    margin-bottom: 4px;
}

.gallery-item__desc {
    font-size: 0.875rem;
    color: var(--color-muted);
}

/* ============================
   KENYA HARA — PROJECT PAGES
   'Emptiness' philosophy design
   ============================ */

/* Hero with textured background */
.kh-hero {
    position: relative;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: calc(var(--space-xl) + 4rem) var(--space-md) var(--space-lg);
    overflow: hidden;
    background-color: #eef0f2;
}

.kh-hero__bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.kh-hero__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.35;
    mix-blend-mode: multiply;
}

.kh-hero__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(238, 240, 242, 0.1) 0%, rgba(255, 255, 255, 0.4) 100%);
}

.kh-hero__label {
    position: relative;
    z-index: 1;
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--color-muted);
    margin-bottom: var(--space-sm);
    font-weight: 300;
}

.kh-hero__title {
    position: relative;
    z-index: 1;
    font-family: var(--font-serif);
    font-size: clamp(3rem, 8vw + 1rem, 7rem);
    letter-spacing: -0.02em;
    color: #2a2a2a;
    margin-bottom: var(--space-xs);
    line-height: 1.05;
}

.kh-hero__subtitle {
    position: relative;
    z-index: 1;
    font-family: var(--font-serif);
    font-style: italic;
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    color: var(--color-muted);
    letter-spacing: 0.05em;
    opacity: 0.8;
}

/* Two-column intent section */
.kh-intent {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.kh-intent__text h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: var(--space-xs);
}

.kh-intent__text .kh-accent-line {
    width: 60px;
    height: 3px;
    background: var(--color-fg);
    margin-bottom: var(--space-md);
}

.kh-intent__text p {
    font-size: 0.95rem;
    line-height: 2;
    color: #555;
    margin-bottom: 1.25rem;
    font-weight: 300;
}

.kh-intent__image {
    position: relative;
}

.kh-intent__image img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    filter: grayscale(100%);
    border-radius: 2px;
}

.kh-intent__image::before {
    content: '';
    position: absolute;
    inset: -12px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    transform: rotate(1.5deg);
    transition: transform 0.5s var(--ease-antigravity);
    pointer-events: none;
}

.kh-intent__image:hover::before {
    transform: rotate(0);
}

/* 4-column activity cards */
.kh-activities {
    background: #f8f8f8;
    padding: var(--space-xl) var(--space-md);
}

.kh-activities__inner {
    max-width: 1200px;
    margin: 0 auto;
}

.kh-activities__header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.kh-activities__header h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: var(--space-xs);
}

.kh-activities__header p {
    color: var(--color-muted);
    font-weight: 300;
    font-size: 0.9rem;
}

.kh-activities__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
}

.kh-activity-card {
    background: #fff;
    padding: var(--space-md);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: box-shadow 0.4s var(--ease-antigravity);
}

.kh-activity-card:hover {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.kh-activity-card__icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-sm);
    font-size: 1.2rem;
    color: #555;
    transition: all 0.3s ease;
}

.kh-activity-card:hover .kh-activity-card__icon {
    background: var(--color-fg);
    color: #fff;
}

.kh-activity-card h3 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.kh-activity-card p {
    font-size: 0.82rem;
    color: var(--color-muted);
    line-height: 1.7;
    margin: 0;
}

/* Centered timeline */
.kh-timeline {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-md);
}

.kh-timeline__header {
    margin-bottom: var(--space-xl);
}

.kh-timeline__header h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: var(--space-xs);
}

.kh-timeline__header p {
    color: var(--color-muted);
    font-weight: 300;
    font-size: 0.9rem;
}

.kh-timeline__list {
    position: relative;
    padding-left: 0;
    list-style: none;
}

.kh-timeline__list::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(0, 0, 0, 0.08);
    transform: translateX(-50%);
}

.kh-timeline__item {
    display: flex;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
    position: relative;
}

.kh-timeline__item:nth-child(even) {
    flex-direction: row-reverse;
    text-align: right;
}

.kh-timeline__year {
    flex: 0 0 calc(50% - var(--space-md));
    font-family: var(--font-serif);
    font-size: 1.8rem;
    color: rgba(0, 0, 0, 0.12);
}

.kh-timeline__body {
    flex: 0 0 calc(50% - var(--space-md));
}

.kh-timeline__body h4 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.kh-timeline__body p {
    font-size: 0.82rem;
    color: var(--color-muted);
    line-height: 1.65;
    margin: 0;
}

/* Dot on timeline */
.kh-timeline__item::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 0.6rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-fg);
    border: 3px solid #fff;
    transform: translateX(-50%);
    z-index: 1;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.06);
}

/* Dark value section */
.kh-value {
    background: #1a1a1a;
    color: #fff;
    padding: var(--space-xl) var(--space-md);
    text-align: center;
}

.kh-value__inner {
    max-width: 900px;
    margin: 0 auto;
}

.kh-value__quote {
    font-family: var(--font-serif);
    font-size: clamp(1rem, 1.5vw, 1.25rem);
    font-style: italic;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--space-lg);
    line-height: 1.8;
}

.kh-value h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: var(--space-md);
}

.kh-value__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    text-align: left;
    margin-top: var(--space-lg);
}

.kh-value__card {
    padding: var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 2px;
}

.kh-value__card h3 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.kh-value__card p {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    margin: 0;
}

/* Sub-heading for project sections */
.kh-section {
    max-width: 960px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
}

.kh-section h2 {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 2vw + 0.5rem, 2.5rem);
    margin-bottom: var(--space-sm);
}

.kh-section p {
    font-size: 0.92rem;
    line-height: 1.9;
    color: #444;
    margin-bottom: 1.2rem;
}


/* ============================
   ANIMATIONS
   ============================ */
.js-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1.2s var(--ease-antigravity), transform 1.2s var(--ease-antigravity);
}

.js-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================
   MOBILE
   ============================ */
@media (max-width: 768px) {
    .header__menu-btn {
        display: flex;
    }

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

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

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

    .header__nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.97);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        gap: var(--space-sm);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-20px) scale(0.98);
        transition: opacity 0.6s var(--ease-antigravity), transform 0.6s var(--ease-antigravity), visibility 0.6s;
        overflow-y: auto;
        padding: 5rem var(--space-md) var(--space-xl);
    }

    .header.is-menu-open .header__nav {
        opacity: 1;
        visibility: visible;
        transform: translateY(0) scale(1);
    }

    .nav-group {
        text-align: center;
        width: 100%;
        padding-bottom: 0.75rem;
        margin-bottom: 0.75rem;
        border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    }

    .nav-group:last-child {
        border-bottom: none;
    }

    /* 모바일 아코디언: 기본 숨김, 클릭 시 토글 */
    .nav__dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        pointer-events: auto;
        display: none;
        padding-top: 0.5rem;
        gap: 0.5rem;
        background: none;
        backdrop-filter: none;
        box-shadow: none;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s var(--ease-antigravity);
    }

    /* PC 호버는 모바일에서 비활성화 */
    .nav-group:hover .nav__dropdown {
        display: none;
    }

    /* 아코디언 열림 상태 */
    .nav-group.is-dropdown-open .nav__dropdown {
        display: flex;
        max-height: 500px;
    }

    .nav__dropdown a {
        color: var(--color-muted);
        font-size: 0.8rem;
    }

    .nav__link {
        font-size: 1.1rem;
        font-weight: 500;
    }

    .gallery {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }

    .gallery-item,
    .gallery-item:nth-child(even) {
        grid-column: 1 / -1;
        margin-top: 0;
    }

    .gallery-item__image {
        object-position: center 25%;
    }

    .split-section {
        grid-template-columns: 1fr;
    }

    .features {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .timeline::before {
        left: 0;
    }

    .timeline__item,
    .timeline__item:nth-child(even) {
        flex-direction: column;
        text-align: left;
    }

    .timeline__year {
        flex: none;
    }

    .footer__inner {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    body.page-home .footer {
        position: fixed;
    }

    .project-cards {
        grid-template-columns: 1fr;
    }

    .others-card,
    .others-card:nth-child(even) {
        grid-template-columns: 1fr;
        direction: ltr;
    }

    .map-container--full {
        height: 300px;
    }

    .kh-intent {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .kh-activities__grid {
        grid-template-columns: 1fr 1fr;
    }

    .kh-timeline__list::before {
        left: 0;
    }

    .kh-timeline__item,
    .kh-timeline__item:nth-child(even) {
        flex-direction: column;
        text-align: left;
        padding-left: var(--space-md);
        gap: 0;
    }

    .kh-timeline__year {
        flex: none;
    }

    .kh-timeline__body {
        flex: none;
    }

    .kh-timeline__item::after {
        left: 0;
    }

    .kh-value__grid {
        grid-template-columns: 1fr;
    }

    .kh-hero {
        min-height: 45vh;
    }
}