/* PET Acoustic Panel — Premium B2B Catalog v37 */
@import url('tokens.css');
@import url('detail-hero-mobile.css');

:root {
    --pd-line: rgba(0, 0, 0, 0.09);
    --pd-sub: #444;
    --pd-muted: #777;
    --pd-soft: #f7f7f7;
    --pd-gap: 0.875rem;
    --pd-y: clamp(2.75rem, 5vw, 4.5rem);
    --pd-bottom-xl: 5rem;
    --pd-accent: #1a4d3e;
}

* {
    margin: 0; padding: 0; box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
}

html { scroll-behavior: smooth; }

body.pd-page {
    background: #fff;
    color: #111;
    font-size: 1.125rem;
    line-height: 1.55;
    padding-top: var(--header-h);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; width: 100%; height: auto; max-width: 100%; }

.pd-main > section:not(.pd-hero):not(.pd-global) {
    text-align: left;
}
.pd-main > section:not(.pd-hero):not(.pd-global) .site-container {
    width: 100%;
}

header {
    position: fixed; top: 0; left: 0; width: 100%;
    height: var(--header-h); z-index: 1000;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    display: flex; align-items: center;
    border-bottom: 1px solid var(--pd-line);
}
.header-inner {
    width: 100%; display: flex; justify-content: space-between; align-items: center;
    max-width: var(--container-max); margin: 0 auto;
    padding-left: var(--container-pad); padding-right: var(--container-pad);
}
.logo-img { height: clamp(2.75rem, 8vw, 3.875rem); width: auto; object-fit: contain; }
.nav-links { display: flex; gap: clamp(1.5rem, 4vw, 3.125rem); }
.nav-links a {
    font-size: clamp(0.875rem, 1.5vw, 1rem); font-weight: 600;
    text-transform: uppercase; color: #333; letter-spacing: 0.3px;
}
.nav-links a:hover { color: #000; }
.mobile-menu-toggle { display: none; flex-direction: column; gap: 6px; cursor: pointer; }
.mobile-menu-toggle span { display: block; width: 28px; height: 2px; background: #000; }

.pd-main { padding-bottom: 0; }

.pd-sec-title {
    font-size: 0.8125rem; font-weight: 700; letter-spacing: 0.14em;
    text-transform: uppercase; color: var(--pd-muted);
    margin-bottom: 0.25rem;
}
.pd-sec-head {
    font-family: 'DM Sans', 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 0.625rem;
}

/* Hero — container-width media block with text overlay */
.pd-hero {
    padding: clamp(1rem, 2vw, 1.5rem) 0;
    background: #fff;
    border-bottom: 1px solid var(--pd-line);
    text-align: center;
}
.pd-hero-media {
    position: relative;
    width: 100%;
    height: clamp(20rem, 32vw, 23.75rem);
    overflow: hidden;
    border-radius: 0;
}
.pd-hero-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
    object-position: center;
}
.pd-hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    pointer-events: none;
    z-index: 1;
}
.pd-hero-inner {
    position: absolute;
    inset: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 46rem;
    margin: 0 auto;
    padding: clamp(0.75rem, 2vw, 1.25rem);
    gap: 0.375rem;
}
.pd-hero-inner h1 {
    font-family: 'DM Sans', 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(2.25rem, 4.5vw, 3rem);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.1;
    color: #fff;
    margin-bottom: 0;
}
.pd-hero-lead {
    font-size: clamp(0.9375rem, 1.75vw, 1.125rem);
    font-weight: 400;
    color: rgba(255, 255, 255, 0.92);
    letter-spacing: 0.03em;
    line-height: 1.45;
    max-width: 36rem;
}

/* Global — Premium center-aligned landing block */
.pd-global {
    padding-top: clamp(6rem, 10vw, 7.5rem);
    padding-bottom: clamp(5.5rem, 9vw, 7rem);
    background: #fafafa;
    border-bottom: 1px solid var(--pd-line);
}
.pd-global .pd-global-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}
.pd-global .pd-global-inner > * {
    text-align: center;
}
.pd-global-kicker {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--pd-muted);
    margin-bottom: 0.75rem;
}
.pd-global-title {
    font-family: 'DM Sans', 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(1.625rem, 3.6vw, 2rem);
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.22;
    margin-bottom: 1rem;
}
.pd-global-desc {
    font-size: 1.125rem;
    color: var(--pd-sub);
    line-height: 1.65;
    margin-bottom: 1.75rem;
    max-width: 40rem;
}
.pd-flag-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin: 0 0 1.25rem;
    padding: 0;
    list-style: none;
}
.pd-flag-row li {
    flex-shrink: 0;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 0.3125rem;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}
.pd-flag-row img {
    display: block;
    width: clamp(3rem, 7vw, 3.5rem);
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}
.pd-meta-line {
    font-size: 1.125rem;
    font-weight: 500;
    color: #222;
    line-height: 1.55;
    margin: 0 0 1.5rem;
}
.pd-spaces-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: clamp(1.75rem, 2.8vw, 2.25rem);
    margin: 0;
    padding: 0;
}
.pd-space-item {
    font-size: 1.125rem;
    font-weight: 500;
    color: #333;
    line-height: 1.55;
    white-space: nowrap;
}
.pd-space-item::before {
    content: '•';
    margin-right: 0.35rem;
    color: #999;
}
.pd-korea-notice {
    margin: 2.25rem 0 0;
    max-width: 45rem;
}
.pd-korea-notice p {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: #555;
    font-weight: 400;
    margin: 0;
}
.pd-korea-notice p + p {
    margin-top: 1.5rem;
}
.pd-korea-highlight {
    margin-top: clamp(1.5rem, 2.5vw, 2rem);
    font-size: 1.125rem;
    line-height: 1.65;
    font-weight: 600;
    color: #333;
    text-align: center;
}
.pd-korea-keywords {
    font-weight: 700;
    color: var(--pd-accent);
}

/* Brands — Text-only card grid (4 + 3) */
.pd-brands {
    padding: var(--pd-y) 0;
    border-bottom: 1px solid var(--pd-line);
}
.pd-brands-desc {
    font-size: 1.0625rem;
    color: var(--pd-sub);
    line-height: 1.65;
    margin-bottom: 1.75rem;
}
.pd-brand-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: clamp(1.25rem, 2vw, 1.5rem);
    max-width: 56rem;
    margin-inline: auto;
}
.pd-brand-card {
    display: flex;
    flex-direction: column;
    flex: 0 1 calc(25% - 1.125rem);
    min-width: 10.5rem;
    max-width: calc(25% - 1.125rem);
    min-height: 11.5rem;
    padding: 1.5rem;
    border: 1px solid var(--pd-line);
    border-radius: 0.5rem;
    background: #fff;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.pd-brand-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.07);
}
.pd-brand-card-name {
    font-family: 'DM Sans', 'Plus Jakarta Sans', sans-serif;
    font-size: 1.125rem;
    font-weight: 700;
    color: #111;
    margin-bottom: 0.25rem;
}
.pd-brand-card-country {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--pd-muted);
    letter-spacing: 0.02em;
    margin-bottom: 0.625rem;
}
.pd-brand-card-desc {
    font-size: 0.9375rem;
    color: var(--pd-sub);
    line-height: 1.5;
    flex: 1;
    margin-bottom: 1rem;
}
.pd-brand-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: auto;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: 100px;
    text-align: center;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.pd-brand-btn--site {
    background: #111;
    color: #fff;
    border: 1px solid #111;
}
.pd-brand-btn--site:hover {
    background: #fff;
    color: #111;
}
.pd-brands-notice {
    margin-top: clamp(2rem, 3.5vw, 2.5rem);
    padding: clamp(1.75rem, 3vw, 2.25rem) clamp(2rem, 4vw, 2.5rem);
    background: #f8f8f8;
    border-radius: 0.375rem;
    text-align: center;
    max-width: 45rem;
    margin-inline: auto;
}
.pd-brands-notice p {
    font-size: clamp(1.0625rem, 1.5vw, 1.125rem);
    line-height: 1.8;
    color: #444;
    font-weight: 400;
    margin: 0;
}
.pd-brands-notice p + p {
    margin-top: 1rem;
}
.pd-brands-notice strong {
    font-weight: 600;
    color: #333;
}

/* Product Information — unified types + features */
.pd-product-info {
    padding: var(--pd-y) 0;
}
.pd-product-block + .pd-product-block {
    margin-top: clamp(1.5rem, 2.5vw, 2rem);
}
.pd-product-lead {
    font-size: 1.0625rem;
    font-weight: 500;
    color: var(--pd-sub);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}
.pd-info-grid {
    display: grid;
    gap: 0.875rem;
}
.pd-info-grid--types {
    grid-template-columns: repeat(4, 1fr);
}
.pd-info-grid--features {
    grid-template-columns: repeat(5, 1fr);
}
.pd-info-card {
    border: 1px solid var(--pd-line);
    border-radius: 0.375rem;
    padding: 1.125rem 1rem;
    background: #fff;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-height: 8.75rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.pd-info-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
}
.pd-info-icon {
    font-size: 1.375rem;
    line-height: 1;
    color: #333;
}
.pd-info-title {
    font-family: 'DM Sans', 'Plus Jakarta Sans', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.35;
    color: #111;
}
.pd-info-desc {
    font-size: 0.875rem;
    color: var(--pd-sub);
    line-height: 1.6;
    flex: 1;
}

/* Gallery */
.pd-gallery {
    padding: var(--pd-y) 0;
    border-bottom: 1px solid var(--pd-line);
    background: #fafafa;
}
.pd-gallery-wrap { display: flex; flex-direction: column; gap: 0; }
.pd-gallery-block {
    padding: var(--pd-y) 0;
    border-bottom: 1px solid var(--pd-line);
}
.pd-gallery-block:first-child {
    padding-top: 0;
}
.pd-gallery-block:last-of-type { border-bottom: none; }
.pd-gallery-sub {
    font-family: 'DM Sans', 'Plus Jakarta Sans', sans-serif;
    font-size: clamp(1.1875rem, 2.4vw, 1.375rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 0.375rem;
}
.pd-gallery-desc {
    font-size: 1.0625rem;
    color: var(--pd-sub);
    line-height: 1.6;
    margin-bottom: 0.625rem;
}
.pd-gallery-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--pd-gap);
}
.pd-gallery-item {
    display: block;
    width: 100%;
    padding: 0;
    border: 1px solid var(--pd-line);
    border-radius: 0.25rem;
    overflow: hidden;
    background: #fff;
    line-height: 0;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.pd-gallery-item:hover {
    border-color: rgba(0, 0, 0, 0.2);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transform: translateY(-1px);
}
.pd-gallery-item:focus-visible {
    outline: 2px solid #111;
    outline-offset: 2px;
}
.pd-gallery-item img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    object-position: center 45%;
    pointer-events: none;
    background: var(--pd-soft);
}
.pd-gallery-more {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 0.625rem;
    padding: 0.5625rem 1.125rem;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: inherit;
    color: #111;
    background: #fff;
    border: 1px solid var(--pd-line);
    border-radius: 100px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
}
.pd-gallery-more:hover {
    background: var(--pd-soft);
    border-color: rgba(0, 0, 0, 0.18);
}
.pd-gallery-more:focus-visible {
    outline: 2px solid #111;
    outline-offset: 2px;
}
.pd-gallery-note {
    margin-top: 0.75rem;
    font-size: 0.8125rem;
    color: var(--pd-muted);
}

/* Lightbox */
body.pd-lightbox-open { overflow: hidden; }
.pd-lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.92);
    padding: 3.5rem 1rem 1rem;
}
.pd-lightbox[hidden] { display: none; }
.pd-lightbox-img {
    max-width: min(100%, 72rem);
    max-height: calc(100vh - 5rem);
    width: auto;
    height: auto;
    object-fit: contain;
    user-select: none;
}
.pd-lightbox-close,
.pd-lightbox-prev,
.pd-lightbox-next {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    cursor: pointer;
    transition: background 0.2s ease;
}
.pd-lightbox-close:hover,
.pd-lightbox-prev:hover,
.pd-lightbox-next:hover,
.pd-lightbox-prev:not(:disabled):hover,
.pd-lightbox-next:not(:disabled):hover {
    background: rgba(255, 255, 255, 0.22);
}
.pd-lightbox-close:focus-visible,
.pd-lightbox-prev:focus-visible,
.pd-lightbox-next:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}
.pd-lightbox-close {
    top: 1rem;
    right: 1rem;
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    font-size: 1.75rem;
    line-height: 1;
}
.pd-lightbox-prev,
.pd-lightbox-next {
    top: 50%;
    transform: translateY(-50%);
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 50%;
    font-size: 1.75rem;
    line-height: 1;
}
.pd-lightbox-prev { left: 0.75rem; }
.pd-lightbox-next { right: 0.75rem; }
.pd-lightbox-prev:disabled,
.pd-lightbox-next:disabled {
    opacity: 0.35;
    cursor: default;
}
.pd-lightbox-counter {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.875rem;
    font-weight: 500;
}


@media (max-width: 767px) {
    .mobile-menu-toggle { display: flex; }
    header nav { display: none; }
    header.menu-open nav {
        display: block; position: absolute;
        top: var(--header-h); left: 0; right: 0;
        background: #fff; border-bottom: 1px solid var(--pd-line);
        padding: 1.25rem;
    }
    header.menu-open .nav-links { flex-direction: column; gap: 1rem; }
    .pd-brand-grid { max-width: 100%; }
    .pd-brand-card {
        flex: 1 1 100%;
        max-width: 100%;
        min-width: 0;
    }
    .pd-info-grid--types,
    .pd-info-grid--features { grid-template-columns: repeat(2, 1fr); }
    .pd-gallery-grid { grid-template-columns: repeat(3, 1fr); }
    .pd-lightbox-prev { left: 0.375rem; }
    .pd-lightbox-next { right: 0.375rem; }
    .pd-spaces-row { gap: 1rem 1.25rem; }
    .pd-space-item { font-size: 1rem; white-space: normal; }
    .pd-brands-notice { margin-top: 2rem; }
}

@media (min-width: 1024px) {
    .pd-spaces-row { flex-wrap: nowrap; }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .pd-brand-card {
        flex: 0 1 calc(50% - 0.75rem);
        max-width: calc(50% - 0.75rem);
    }
    .pd-info-grid--types { grid-template-columns: repeat(2, 1fr); }
    .pd-info-grid--features { grid-template-columns: repeat(3, 1fr); }
    .pd-gallery-grid { grid-template-columns: repeat(4, 1fr); }
}