/* ============================================
   상원보드 (SANGWON BOARD) — Global Styles
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@100;300;400&display=swap');

/* ── CSS Variables ── */
:root {
    --white: #FFFFFF;
    --off-white: #F7F7F5;
    --light-gray: #EFEFED;
    --mid-gray: #C8C8C4;
    --text-sec: #7A7A78;
    --text-pri: #1A1A18;
    --accent: #2A2A28;
    --border: #E5E5E3;

    --font-sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;

    --transition-base: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ── Reset & Base ── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-sans);
    font-weight: 300;
    color: var(--text-pri);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 32px 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: padding var(--transition-base),
        background var(--transition-base),
        box-shadow var(--transition-base);
}

.nav.scrolled {
    padding: 20px 60px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 1px 0 var(--border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.nav-logo {
    display: flex;
    align-items: center;
    line-height: 1;
}

/* 로고 이미지 — 기본(히어로): 흰색 반전, 스크롤 후: 원본 검정 */
.nav-logo-img {
    height: 36px;
    width: auto;
    display: block;
    filter: invert(1) brightness(2);
    /* 검은 로고 → 흰색 */
    transition: filter var(--transition-base), opacity var(--transition-base);
}

.nav.scrolled .nav-logo-img {
    filter: invert(0) brightness(1);
    /* 스크롤 후 → 원본 검정 */
}

.nav-logo-img:hover {
    opacity: 0.75;
}


.nav-menu {
    display: flex;
    align-items: center;
    gap: 48px;
    list-style: none;
}

.nav-menu a {
    font-size: 12px;
    font-weight: 300;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85);
    transition: color var(--transition-base), opacity 0.3s;
}

.nav-menu a:hover {
    color: var(--white);
}

.nav.scrolled .nav-menu a {
    color: var(--text-sec);
}

.nav.scrolled .nav-menu a:hover {
    color: var(--text-pri);
}

.nav-contact-btn {
    font-size: 11px;
    font-weight: 300;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.85) !important;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 8px 22px;
    transition: all var(--transition-base) !important;
}

.nav-contact-btn:hover {
    color: var(--text-pri) !important;
    background: var(--white);
    border-color: var(--white) !important;
}

.nav.scrolled .nav-contact-btn {
    color: var(--text-pri) !important;
    border-color: var(--border) !important;
}

.nav.scrolled .nav-contact-btn:hover {
    background: var(--text-pri);
    color: var(--white) !important;
    border-color: var(--text-pri) !important;
}

/* ── Mobile Menu Toggle ── */
.nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
}

.nav-hamburger span {
    display: block;
    width: 24px;
    height: 1px;
    background: var(--white);
    transition: background var(--transition-base);
}

.nav.scrolled .nav-hamburger span {
    background: var(--text-pri);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

/* ── Hero Video ── */
.hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

/* Fallback placeholder gradient (shown if video fails) */
.hero-bg-placeholder {
    width: 100%;
    height: 100%;
    background:
        linear-gradient(165deg,
            #2c2c2a 0%,
            #3d3d3a 25%,
            #4a4845 45%,
            #2e2d2b 65%,
            #1e1e1c 100%);
}

/* Wood-grain texture overlay via SVG */
.hero-bg-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        repeating-linear-gradient(88deg,
            transparent 0px,
            transparent 18px,
            rgba(255, 255, 255, 0.018) 18px,
            rgba(255, 255, 255, 0.018) 19px),
        repeating-linear-gradient(92deg,
            transparent 0px,
            transparent 32px,
            rgba(0, 0, 0, 0.04) 32px,
            rgba(0, 0, 0, 0.04) 33px);
}

.hero-bg img {
    object-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    background: linear-gradient(to top,
            rgba(10, 10, 8, 0.72) 0%,
            rgba(10, 10, 8, 0.30) 50%,
            rgba(10, 10, 8, 0.10) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 0 60px 80px;
    max-width: 900px;
}

.hero-sub {
    font-size: 11px;
    font-weight: 100;
    letter-spacing: 0.38em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.65);
    margin-bottom: 22px;
    display: block;
}

.hero-title {
    font-size: clamp(38px, 5.5vw, 72px);
    font-weight: 100;
    letter-spacing: -0.01em;
    line-height: 1.15;
    color: var(--white);
    margin-bottom: 36px;
}

.hero-title em {
    font-style: normal;
    font-weight: 300;
}

.hero-desc {
    font-size: 14px;
    font-weight: 100;
    letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.60);
    line-height: 1.8;
    max-width: 400px;
    margin-bottom: 52px;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    font-size: 11px;
    font-weight: 300;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--white);
    border-bottom: 1px solid rgba(255, 255, 255, 0.35);
    padding-bottom: 8px;
    transition: gap 0.4s, border-color 0.4s;
}

.hero-cta:hover {
    gap: 22px;
    border-color: var(--white);
}

.hero-cta svg {
    flex-shrink: 0;
}

/* ── 음소거 토글 버튼 ── */
.hero-mute {
    position: absolute;
    bottom: 40px;
    left: 60px;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 9px;
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: rgba(255, 255, 255, 0.75);
    padding: 9px 18px 9px 14px;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 10px;
    font-weight: 300;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    transition: background 0.3s, border-color 0.3s, color 0.3s;
    border-radius: 2px;
}

.hero-mute:hover {
    background: rgba(255, 255, 255, 0.20);
    border-color: rgba(255, 255, 255, 0.55);
    color: #fff;
}

/* 아이콘 전환 */
.hero-mute .icon-sound {
    display: none;
}

.hero-mute.is-unmuted .icon-muted {
    display: none;
}

.hero-mute.is-unmuted .icon-sound {
    display: block;
}

@media (max-width: 768px) {
    .hero-mute {
        bottom: 24px;
        left: 20px;
        padding: 8px 14px 8px 12px;
        font-size: 9px;
    }
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    right: 60px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.hero-scroll-text {
    font-size: 9px;
    font-weight: 100;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    writing-mode: vertical-rl;
}

.hero-scroll-line {
    width: 1px;
    height: 60px;
    background: rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

.hero-scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.7);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% {
        top: -100%;
    }

    100% {
        top: 100%;
    }
}

/* ============================================
   SECTION COMMONS
   ============================================ */
.section-header {
    margin-bottom: 72px;
}

.section-label {
    display: inline-block;
    font-size: 10px;
    font-weight: 300;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--text-sec);
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 3.5vw, 48px);
    font-weight: 100;
    letter-spacing: -0.01em;
    line-height: 1.2;
    color: var(--text-pri);
}

.section-line {
    width: 40px;
    height: 1px;
    background: var(--mid-gray);
    margin-top: 28px;
}

/* ── Scroll Animations ── */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94),
        transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-up:nth-child(1) {
    transition-delay: 0.0s;
}

.fade-up:nth-child(2) {
    transition-delay: 0.1s;
}

.fade-up:nth-child(3) {
    transition-delay: 0.2s;
}

.fade-up:nth-child(4) {
    transition-delay: 0.3s;
}

.fade-up:nth-child(5) {
    transition-delay: 0.4s;
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.products {
    padding: 140px 60px;
    background: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: auto;
    gap: 4px;
}

/* Asymmetric masonry-like grid */
.product-item:nth-child(1) {
    grid-column: 1 / 3;
    grid-row: 1;
}

.product-item:nth-child(2) {
    grid-column: 3 / 4;
    grid-row: 1;
}

.product-item:nth-child(3) {
    grid-column: 1 / 2;
    grid-row: 2;
}

.product-item:nth-child(4) {
    grid-column: 2 / 4;
    grid-row: 2;
}

.product-item {
    position: relative;
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: auto;
}

.product-item:nth-child(1) {
    height: 520px;
}

.product-item:nth-child(2) {
    height: 520px;
}

.product-item:nth-child(3) {
    height: 380px;
}

.product-item:nth-child(4) {
    height: 380px;
}

.product-img {
    width: 100%;
    height: 100%;
    transition: transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Product placeholder gradients */
.product-item:nth-child(1) .product-img-placeholder {
    background: linear-gradient(135deg, #4a4540 0%, #2d2a27 40%, #3c3835 100%);
    width: 100%;
    height: 100%;
    position: relative;
}

.product-item:nth-child(1) .product-img-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(180deg,
            transparent 0px,
            transparent 3px,
            rgba(255, 255, 255, 0.012) 3px,
            rgba(255, 255, 255, 0.012) 4px);
}

.product-item:nth-child(2) .product-img-placeholder {
    background: linear-gradient(145deg, #d4cfc9 0%, #e8e4de 50%, #cfc9c2 100%);
    width: 100%;
    height: 100%;
    position: relative;
}

.product-item:nth-child(2) .product-img-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(91deg,
            transparent 0px,
            transparent 15px,
            rgba(0, 0, 0, 0.025) 15px,
            rgba(0, 0, 0, 0.025) 16px);
}

.product-item:nth-child(3) .product-img-placeholder {
    background: linear-gradient(160deg, #b8b2aa 0%, #ccc6bc 50%, #a8a29a 100%);
    width: 100%;
    height: 100%;
    position: relative;
}

.product-item:nth-child(3) .product-img-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(87deg,
            transparent 0px,
            transparent 10px,
            rgba(255, 255, 255, 0.04) 10px,
            rgba(255, 255, 255, 0.04) 11px);
}

.product-item:nth-child(4) .product-img-placeholder {
    background: linear-gradient(125deg, #3a3830 0%, #4e4b42 40%, #2e2c26 100%);
    width: 100%;
    height: 100%;
    position: relative;
}

.product-item:nth-child(4) .product-img-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(89deg,
            transparent 0px,
            transparent 22px,
            rgba(255, 255, 255, 0.015) 22px,
            rgba(255, 255, 255, 0.015) 23px);
}

.product-item:hover .product-img-placeholder,
.product-item:hover .product-img {
    transform: scale(1.04);
}

.product-item:hover .product-img-placeholder {
    transform: scale(1.04);
    transition: transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.product-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top,
            rgba(10, 10, 8, 0.80) 0%,
            rgba(10, 10, 8, 0.20) 55%,
            transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 36px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.product-item:hover .product-overlay {
    opacity: 1;
}

.product-tag {
    font-size: 9px;
    font-weight: 100;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 8px;
}

.product-name {
    font-size: 22px;
    font-weight: 100;
    letter-spacing: 0.02em;
    color: var(--white);
    margin-bottom: 10px;
}

.product-desc {
    font-size: 12px;
    font-weight: 100;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.60);
    line-height: 1.7;
    max-width: 280px;
}

.product-arrow {
    position: absolute;
    top: 28px;
    right: 28px;
    width: 32px;
    height: 32px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    opacity: 0;
    transform: rotate(-45deg);
    transition: opacity 0.5s, transform 0.5s;
}

.product-item:hover .product-arrow {
    opacity: 1;
    transform: rotate(0deg);
}

/* Always-visible product label (bottom left, no hover) */
.product-label-always {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 24px 28px;
    background: linear-gradient(to top, rgba(10, 10, 8, 0.65) 0%, transparent 100%);
    transition: opacity var(--transition-base);
}

.product-label-always .product-tag {
    opacity: 0.7;
}

.product-label-always .product-name {
    font-size: 16px;
}

.product-item:hover .product-label-always {
    opacity: 0;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
    padding: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 700px;
}

.about-image {
    position: relative;
    overflow: hidden;
}

.about-img-placeholder {
    width: 100%;
    height: 100%;
    min-height: 600px;
    background-image: url('about-bg.png');
    background-size: cover;
    background-position: center;
    position: relative;
    transition: transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Subtle texture stripe */
.about-img-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(95deg,
            transparent 0px,
            transparent 28px,
            rgba(255, 255, 255, 0.02) 28px,
            rgba(255, 255, 255, 0.02) 29px);
}

/* Factory shape silhouette */
.about-img-placeholder::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 45%;
    background: linear-gradient(to top,
            rgba(20, 30, 18, 0.75),
            transparent);
}

.about-image:hover .about-img-placeholder {
    transform: scale(1.03);
}

.about-image img {
    object-position: center;
    transition: transform 0.9s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.about-image:hover img {
    transform: scale(1.04);
}

.about-content {
    background: var(--off-white);
    padding: 100px 80px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-quote {
    font-size: clamp(22px, 2.8vw, 38px);
    font-weight: 100;
    line-height: 1.6;
    letter-spacing: -0.01em;
    color: var(--text-pri);
    margin-bottom: 40px;
    border-left: 2px solid var(--mid-gray);
    padding-left: 32px;
}

.about-quote strong {
    font-weight: 300;
}

.about-philosophy {
    font-size: 14px;
    font-weight: 100;
    letter-spacing: 0.04em;
    line-height: 2;
    color: var(--text-sec);
    margin-bottom: 56px;
    max-width: 440px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

/* .about-stat — no extra styles needed */

.about-stat-number {
    font-size: 36px;
    font-weight: 100;
    letter-spacing: -0.02em;
    color: var(--text-pri);
    line-height: 1;
    margin-bottom: 6px;
}

.about-stat-number sup {
    font-size: 14px;
    letter-spacing: 0;
    vertical-align: super;
}

.about-stat-label {
    font-size: 10px;
    font-weight: 300;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-sec);
}

/* ============================================
   STATS / INTRO STRIP
   ============================================ */
.intro-strip {
    padding: 100px 60px;
    background: var(--accent);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
}

.intro-strip-title {
    font-size: clamp(24px, 2.5vw, 36px);
    font-weight: 100;
    letter-spacing: 0.01em;
    line-height: 1.6;
    color: var(--white);
}

.intro-strip-body {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.intro-strip-line {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.intro-strip-line-title {
    font-size: 11px;
    font-weight: 300;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    margin-bottom: 10px;
}

.intro-strip-line-text {
    font-size: 14px;
    font-weight: 100;
    letter-spacing: 0.04em;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.75);
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
    padding: 140px 60px;
    background: var(--white);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

/* .contact-info — no extra styles needed */

.contact-label {
    font-size: 10px;
    font-weight: 300;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    color: var(--text-sec);
    margin-bottom: 24px;
}

.contact-title {
    font-size: clamp(30px, 3.5vw, 52px);
    font-weight: 100;
    line-height: 1.2;
    letter-spacing: -0.01em;
    color: var(--text-pri);
    margin-bottom: 48px;
}

.contact-detail {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.contact-item-label {
    font-size: 9px;
    font-weight: 300;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--text-sec);
}

.contact-item-value {
    font-size: 14px;
    font-weight: 300;
    letter-spacing: 0.03em;
    color: var(--text-pri);
    line-height: 1.7;
}

.contact-map {
    min-height: 480px;
    position: relative;
    overflow: hidden;
    background: var(--light-gray);
}

.contact-map iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.contact-map-placeholder {
    width: 100%;
    height: 100%;
    min-height: 420px;
    background:
        linear-gradient(135deg, #e8e6e4 0%, #ededeb 50%, #e2e0de 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 12px;
}

.contact-map-icon {
    width: 36px;
    height: 36px;
    border: 1px solid var(--mid-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-sec);
}

.contact-map-text {
    font-size: 11px;
    font-weight: 300;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-sec);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
    background: var(--text-pri);
    padding: 64px 60px 44px;
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.10);
    margin-bottom: 32px;
    align-items: start;
}

.footer-logo-ko {
    font-size: 20px;
    font-weight: 400;
    letter-spacing: 0.04em;
    color: var(--white);
    margin-bottom: 4px;
}

.footer-logo-en {
    font-size: 9px;
    font-weight: 100;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 28px;
}

.footer-address {
    font-size: 12px;
    font-weight: 100;
    letter-spacing: 0.04em;
    line-height: 2;
    color: rgba(255, 255, 255, 0.5);
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 14px;
}

.footer-links a {
    font-size: 11px;
    font-weight: 300;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--white);
}

.footer-social {
    display: flex;
    gap: 20px;
    margin-top: 16px;
}

.footer-social a {
    width: 34px;
    height: 34px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.45);
    font-size: 12px;
    transition: all 0.35s;
    letter-spacing: 0 !important;
    text-transform: none !important;
}

.footer-social a:hover {
    border-color: rgba(255, 255, 255, 0.6);
    color: var(--white);
}

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

.footer-copy {
    font-size: 10px;
    font-weight: 100;
    letter-spacing: 0.12em;
    color: rgba(255, 255, 255, 0.25);
}

.footer-reg {
    font-size: 10px;
    font-weight: 100;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.25);
    text-align: right;
    line-height: 1.8;
}

/* ============================================
   ABOUT — 회사소개서 다운로드 버튼
   ============================================ */
.about-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    margin-top: 48px;
    padding: 18px 32px;
    border: 1px solid var(--border);
    color: var(--text-pri);
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 300;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    transition: background var(--transition-base), border-color var(--transition-base), color var(--transition-base);
    cursor: pointer;
}

.about-download:hover {
    background: var(--text-pri);
    border-color: var(--text-pri);
    color: var(--white);
}

.about-download svg {
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.about-download:hover svg {
    transform: translateY(3px);
}

/* ============================================
   CATALOG SECTION — 카탈로그 신청
   ============================================ */
.catalog-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 85vh;
    background: var(--white);
}

/* ── 좌측: 갤러리 ── */
.catalog-gallery {
    display: grid;
    grid-template-rows: 1fr auto;
    gap: 2px;
    background: var(--border);
    overflow: hidden;
}

.catalog-gallery-main {
    overflow: hidden;
    background: #111;
}

.catalog-gallery-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.6s ease;
}

.catalog-gallery-main:hover img {
    transform: scale(1.03);
}

.catalog-gallery-sub {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--border);
}

.catalog-gallery-thumb {
    overflow: hidden;
    aspect-ratio: 1;
    background: #1a1a1a;
}

.catalog-gallery-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.5s ease;
}

.catalog-gallery-thumb:hover img {
    transform: scale(1.06);
}

/* ── 우측: 내용 ── */
.catalog-content {
    display: flex;
    align-items: center;
    background: var(--off-white);
    padding: 80px 64px;
}

.catalog-content-inner {
    max-width: 480px;
}

.catalog-main-title {
    font-size: clamp(28px, 3.2vw, 44px);
    font-weight: 100;
    letter-spacing: -0.01em;
    line-height: 1.4;
    color: var(--text-pri);
    margin-top: 20px;
    margin-bottom: 48px;
}

.catalog-main-title em {
    font-style: italic;
    font-weight: 100;
    color: #8a7d6a;
}

/* 구성 아이템 목록 */
.catalog-items {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-bottom: 40px;
    border-top: 1px solid var(--border);
}

.catalog-items li {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

.catalog-item-num {
    font-size: 10px;
    font-weight: 300;
    letter-spacing: 0.2em;
    color: var(--mid-gray);
    flex-shrink: 0;
    padding-top: 2px;
}

.catalog-items li strong {
    display: block;
    font-size: 14px;
    font-weight: 300;
    letter-spacing: 0.04em;
    color: var(--text-pri);
    margin-bottom: 4px;
}

.catalog-items li p {
    font-size: 12px;
    font-weight: 100;
    letter-spacing: 0.04em;
    line-height: 1.8;
    color: var(--text-sec);
}

.catalog-cta-desc {
    font-size: 12px;
    font-weight: 100;
    letter-spacing: 0.06em;
    line-height: 2;
    color: var(--text-sec);
    margin-bottom: 32px;
}

/* 카카오톡 신청 버튼 */
.catalog-kakao-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 32px;
    background: #FEE500;
    color: #191919;
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.06em;
    transition: background 0.25s, transform 0.2s;
    margin-bottom: 24px;
    border: none;
    cursor: pointer;
    width: 100%;
    justify-content: center;
}

.catalog-kakao-btn:hover {
    background: #f5d900;
    transform: translateY(-2px);
}

.catalog-notice {
    font-size: 11px;
    font-weight: 100;
    letter-spacing: 0.04em;
    line-height: 2;
    color: var(--mid-gray);
}

/* 모바일 반응형 */
@media (max-width: 1024px) {
    .catalog-section {
        grid-template-columns: 1fr;
    }

    .catalog-content {
        padding: 64px 52px;
    }

    .catalog-content-inner {
        max-width: 100%;
    }

    .catalog-gallery {
        min-height: 500px;
    }
}

@media (max-width: 768px) {
    .catalog-section {
        grid-template-columns: 1fr;
    }

    .catalog-content {
        padding: 48px 24px;
    }

    .catalog-main-title {
        font-size: clamp(24px, 7vw, 36px);
    }

    .catalog-gallery-sub {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 480px) {
    .catalog-content {
        padding: 40px 20px;
    }

    .catalog-gallery-sub {
        grid-template-columns: repeat(3, 1fr);
    }
}





/* ============================================
   RESPONSIVE
   ============================================ */
/* ============================================
   RESPONSIVE — Tablet (≤ 1024px)
   ============================================ */
@media (max-width: 1024px) {
    .nav {
        padding: 28px 40px;
    }

    .nav.scrolled {
        padding: 18px 40px;
    }

    .hero-content {
        padding: 0 40px 72px;
    }

    .hero-scroll {
        right: 40px;
    }

    .products {
        padding: 100px 40px;
    }

    .about-content {
        padding: 72px 52px;
    }

    .intro-strip {
        padding: 80px 40px;
        gap: 60px;
    }

    .contact {
        padding: 100px 40px;
    }

    footer {
        padding: 56px 40px 36px;
    }
}

/* ============================================
   RESPONSIVE — Mobile (≤ 768px)
   ============================================ */
@media (max-width: 768px) {

    /* ── Navigation ── */
    .nav {
        padding: 18px 20px;
        gap: 10px;
    }

    .nav.scrolled {
        padding: 14px 20px;
    }

    .nav-logo-ko {
        font-size: 15px;
    }

    .nav-logo-img {
        height: 28px;
    }


    .nav-menu {
        display: none;
    }

    .nav-hamburger {
        display: flex;
    }

    .lang-toggle {
        padding: 5px 10px;
        margin-left: auto;
    }

    /* ── Hero ── */
    .hero {
        min-height: 100svh;
    }

    .hero-content {
        padding: 0 24px 56px;
        max-width: 100%;
    }

    .hero-sub {
        font-size: 10px;
        letter-spacing: 0.28em;
        margin-bottom: 16px;
    }

    .hero-cta {
        font-size: 10px;
        letter-spacing: 0.18em;
    }

    .hero-scroll {
        display: none;
    }

    /* ── Intro Strip ── */
    .intro-strip {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 64px 24px;
    }

    .intro-strip-title {
        font-size: clamp(22px, 6vw, 32px);
    }

    /* ── Products ── */
    .products {
        padding: 72px 20px;
    }

    .products-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3px;
    }

    .product-item:nth-child(1) {
        grid-column: 1 / 3;
        grid-row: 1;
        height: 300px;
    }

    .product-item:nth-child(2) {
        grid-column: 1 / 2;
        grid-row: 2;
        height: 220px;
    }

    .product-item:nth-child(3) {
        grid-column: 2 / 3;
        grid-row: 2;
        height: 220px;
    }

    .product-item:nth-child(4) {
        grid-column: 1 / 3;
        grid-row: 3;
        height: 240px;
    }

    .product-overlay {
        padding: 24px;
        opacity: 1;
    }

    .product-label-always {
        display: none;
    }

    .product-arrow {
        opacity: 1;
        transform: rotate(0);
    }

    .product-name {
        font-size: 18px;
    }

    .product-desc {
        font-size: 11px;
    }

    /* ── About ── */
    .about {
        grid-template-columns: 1fr;
    }

    .about-img-placeholder {
        min-height: 300px;
    }

    .about-content {
        padding: 52px 24px;
    }

    .about-quote {
        font-size: clamp(20px, 5vw, 28px);
        padding-left: 20px;
        margin-bottom: 28px;
    }

    .about-philosophy {
        font-size: 13px;
        margin-bottom: 36px;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .about-stat-number {
        font-size: 28px;
    }

    /* ── Quality ── */
    #quality {
        padding: 72px 20px !important;
    }

    #quality>div[style*="grid"] {
        grid-template-columns: 1fr !important;
        gap: 2px !important;
    }

    #quality div[role="listitem"] {
        padding: 40px 28px !important;
    }

    /* ── Contact ── */
    .contact {
        grid-template-columns: 1fr;
        padding: 72px 24px;
        gap: 40px;
    }

    .contact-title {
        font-size: clamp(28px, 7vw, 40px);
    }

    .contact-map {
        min-height: 260px;
    }

    .contact-map-placeholder {
        min-height: 260px;
    }

    /* ── Footer ── */
    footer {
        padding: 48px 24px 28px;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-logo-ko {
        font-size: 17px;
    }

    .footer-logo-en {
        font-size: 8px;
        margin-bottom: 20px;
    }

    .footer-address {
        font-size: 11px;
    }

    .footer-links {
        align-items: flex-start;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 10px 24px;
    }

    .footer-links>a {
        font-size: 10px;
    }

    .footer-social {
        margin-top: 12px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 6px;
        align-items: flex-start;
    }

    .footer-copy,
    .footer-reg {
        font-size: 9px;
    }
}

/* ============================================
   RESPONSIVE — Small Mobile (≤ 480px)
   ============================================ */
@media (max-width: 480px) {
    .nav {
        padding: 16px;
    }

    .nav.scrolled {
        padding: 12px 16px;
    }

    .hero-content {
        padding: 0 20px 48px;
    }

    /* 제품 그리드 → 단일 열 */
    .products-grid {
        grid-template-columns: 1fr;
        gap: 3px;
    }

    .product-item:nth-child(1),
    .product-item:nth-child(2),
    .product-item:nth-child(3),
    .product-item:nth-child(4) {
        grid-column: 1 / 2;
        grid-row: auto;
        height: 260px;
    }

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .about-stat-number {
        font-size: 22px;
    }

    .about-stat-label {
        font-size: 8px;
        letter-spacing: 0.1em;
    }

    #quality div[role="listitem"] {
        padding: 32px 20px !important;
    }

    .contact {
        padding: 60px 20px;
    }

    footer {
        padding: 40px 20px 24px;
    }

    .footer-links {
        flex-direction: column;
        gap: 8px;
    }
}

/* ============================================
   IMAGE MODAL (LIGHTBOX)
   ============================================ */
.image-modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 10, 8, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    transition: opacity 0.4s ease;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.image-modal.show {
    display: flex;
    opacity: 1;
}

.modal-content {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    transform: scale(0.95);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.image-modal.show .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: #fff;
    font-size: 40px;
    font-weight: 100;
    cursor: pointer;
    transition: color 0.3s;
    z-index: 10000;
}

.modal-close:hover {
    color: var(--mid-gray);
}

/* 카탈로그 이미지 갤러리 클릭 액션 유도 */
.catalog-gallery img {
    cursor: zoom-in;
    transition: transform 0.4s ease;
}

.catalog-gallery img:hover {
    transform: scale(1.02);
}