/* ============================================================
   Shared styles for shop_fire / shop_bullet / shop_eco / shop_sota
   ============================================================ */

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

body {
    font-family: 'Pretendard', 'Noto Sans KR', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: #fff;
    color: #1a1a1a;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* ============ HEADER ============ */
header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    z-index: 100;
    background: transparent;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
}
header::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 120%;
    background: linear-gradient(to bottom, rgba(255,255,255,1) 0%, rgba(255,255,255,1) 80%, rgba(255,255,255,0) 100%);
    z-index: -1;
    pointer-events: none;
}
.logo img { height: 28px; display: block; position: relative; top: 2px; }
nav { display: flex; gap: 32px; }
nav a {
    font-size: 13px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: #1a1a1a;
    position: relative;
    transition: opacity 0.2s ease;
}
nav a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 1.5px;
    background: #1a1a1a;
    transition: width 0.3s ease;
}
nav a:hover { opacity: 0.6; }
nav a:hover::after { width: 100%; }

/* Breadcrumb under header */
.breadcrumb {
    padding: 100px 40px 0;
    max-width: 1280px;
    margin: 0 auto;
    font-size: 12px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #999;
}
.breadcrumb a { color: #00b7d3; transition: opacity 0.2s ease; }
.breadcrumb a:hover { opacity: 0.7; }

/* ============ PRODUCT HERO ============ */
.product-hero {
    max-width: 1280px;
    margin: 30px auto 0;
    padding: 40px 40px 80px;
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 60px;
    align-items: center;
    min-height: 70vh;
}
.product-hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, #ffffff 0%, #f2f2f0 100%);
    border-radius: 8px;
    padding: 40px;
    min-height: 480px;
    position: relative;
    overflow: hidden;
}
.product-hero-image img {
    max-width: 100%;
    max-height: 460px;
    object-fit: contain;
    transition: opacity 0.3s ease, max-width 0.3s ease;
}
.product-hero-image .placeholder-large {
    font-size: 200px;
    font-weight: 800;
    color: #c4c8cf;
    letter-spacing: -8px;
    line-height: 1;
}

/* Full-width background video section (used between hero and specs) */
.bg-video-section {
    position: relative;
    width: 100%;
    height: 70vh;
    min-height: 480px;
    overflow: hidden;
    background: #0c0e12;
}
.bg-video-section video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Hero slideshow — simple single-image viewer with arrows + dots */
.hero-slideshow {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 440px;
}
.hero-slide {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}
.hero-slide.active {
    opacity: 1;
    pointer-events: auto;
}
.hero-slide img {
    max-width: 100%;
    max-height: 460px;
    object-fit: contain;
}
.hero-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,0.85);
    border: 1px solid rgba(0,0,0,0.06);
    color: #1a1a1a;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 5;
    opacity: 0;
    transition: opacity 0.25s ease, background 0.15s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    padding-bottom: 3px;
}
.hero-slideshow:hover .hero-arrow {
    opacity: 1;
}
.hero-arrow:hover { background: #fff; }
.hero-arrow.left { left: 10px; }
.hero-arrow.right { right: 10px; }
.hero-slide-dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}
.hero-slide-dots .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(0,0,0,0.25);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: background 0.25s ease, width 0.25s ease, border-radius 0.25s ease;
}
.hero-slide-dots .dot.active {
    background: #00b7d3;
    width: 26px;
    border-radius: 4px;
}
.hero-slide-dots .dot:hover:not(.active) {
    background: rgba(0,0,0,0.5);
}
.product-hero-image .placeholder-note {
    position: absolute;
    bottom: 20px;
    font-size: 11px;
    color: #b0b4bc;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.product-hero-info .eyebrow {
    font-size: 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #00b7d3;
    font-weight: 700;
    margin-bottom: 16px;
}
.product-hero-info h1 {
    font-size: 76px;
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 14px;
    color: #1a1a1a;
}
.product-hero-info h1 .small {
    display: block;
    font-size: 22px;
    font-weight: 500;
    color: #555;
    letter-spacing: 0;
    margin-top: 12px;
}
.product-hero-info p.lede {
    font-size: 17px;
    line-height: 1.8;
    color: #333;
    margin-bottom: 28px;
}
.product-hero-info ul.hero-bullets {
    list-style: none;
    margin: 0 0 28px;
    padding: 0;
}
.product-hero-info ul.hero-bullets li {
    position: relative;
    padding: 11px 0 11px 22px;
    font-size: 15px;
    line-height: 1.55;
    color: #333;
    border-bottom: 1px solid #f0f0f0;
}
.product-hero-info ul.hero-bullets li:last-child {
    border-bottom: none;
}
.product-hero-info ul.hero-bullets li::before {
    content: '▸';
    position: absolute;
    left: 0;
    top: 11px;
    color: #00b7d3;
    font-size: 13px;
}

.product-hero-info .quick-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 24px;
    padding: 22px 0;
    border-top: 1px solid #e8e8e8;
    border-bottom: 1px solid #e8e8e8;
    margin-bottom: 28px;
}
.product-hero-info .quick-specs > div {
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.product-hero-info .quick-specs .label {
    font-size: 11px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: #999;
    font-weight: 600;
}
.product-hero-info .quick-specs .value {
    font-size: 17px;
    font-weight: 700;
    color: #1a1a1a;
}
.product-cta {
    display: inline-block;
    background: #00b7d3;
    color: #fff;
    padding: 14px 36px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: background 0.2s ease;
    border: none;
    cursor: pointer;
}
.product-cta:hover { background: #009bb5; }
.product-cta-ghost {
    display: inline-block;
    margin-left: 12px;
    color: #1a1a1a;
    padding: 14px 24px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    border: 1.5px solid #1a1a1a;
    border-radius: 4px;
    transition: background 0.2s ease, color 0.2s ease;
}
.product-cta-ghost:hover { background: #1a1a1a; color: #fff; }

/* ============ COLOR PICKER ============ */
.color-section {
    background: #f7f7f5;
    padding: 80px 40px;
}
.color-section-inner {
    max-width: 1080px;
    margin: 0 auto;
    text-align: center;
}
.color-section .eyebrow {
    font-size: 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #00b7d3;
    font-weight: 700;
    margin-bottom: 14px;
}
.color-section h2 {
    font-size: 40px;
    font-weight: 800;
    letter-spacing: -1px;
    color: #1a1a1a;
    margin-bottom: 8px;
}
.color-section .color-name-en {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 2px;
}
.color-section .color-name-kr {
    font-size: 14px;
    color: #666;
    margin-bottom: 40px;
}
.color-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 360px;
    margin-bottom: 40px;
}
.color-preview img {
    max-width: 50%;
    max-height: 340px;
    object-fit: contain;
    transition: opacity 0.3s ease, max-width 0.3s ease;
}
.color-orbs {
    display: flex;
    gap: 24px;
    align-items: center;
    justify-content: center;
}
.color-orb {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    border: none;
    background: none;
    padding: 0;
}
.orb-label {
    font-family: 'Pretendard', sans-serif;
    font-size: 11px;
    font-weight: 700;
    color: #1a1a1a;
    letter-spacing: 0.5px;
}
.orb-circle {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 2px solid transparent;
    transition: border-color 0.3s ease, transform 0.2s ease;
    position: relative;
}
.orb-circle::after {
    content: '';
    position: absolute;
    top: -4px; left: -4px; right: -4px; bottom: -4px;
    border-radius: 50%;
    border: 1.5px solid transparent;
    transition: border-color 0.3s ease;
}
.color-orb.active .orb-circle::after { border-color: #999; }
.orb-circle.red       { background: #e63226; }
.orb-circle.black     { background: #1a1a1a; }
.orb-circle.silver    { background: linear-gradient(135deg, #c0c0c0, #e8e8e8); }
.orb-circle.blue      { background: #1e4fa3; }
.orb-circle.yellow    { background: #f4c20d; }
.orb-circle.green     { background: #2a7a44; }
.orb-circle.white     { background: #fff; border: 1px solid #ddd; }
.color-orb:hover .orb-circle { transform: scale(1.1); }

/* ============ FEATURE GRID ============ */
.features {
    padding: 90px 40px;
    background: #fff;
}
.features-inner { max-width: 1080px; margin: 0 auto; }
.features-header { text-align: center; margin-bottom: 60px; }
.features-header .eyebrow {
    font-size: 12px;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: #00b7d3;
    font-weight: 700;
    margin-bottom: 14px;
}
.features-header h2 {
    font-size: 40px;
    font-weight: 800;
    letter-spacing: -1px;
    color: #1a1a1a;
    margin-bottom: 12px;
}
.features-header p { font-size: 16px; color: #666; max-width: 620px; margin: 0 auto; line-height: 1.6; }
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.feature-card {
    background: #f7f7f5;
    border-radius: 6px;
    padding: 32px 28px;
    text-align: left;
}
.feature-card .feature-num {
    font-size: 12px;
    font-weight: 700;
    color: #00b7d3;
    letter-spacing: 2px;
    margin-bottom: 14px;
}
.feature-card h3 {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #1a1a1a;
    margin-bottom: 12px;
}
.feature-card p {
    font-size: 14px;
    line-height: 1.7;
    color: #555;
}

/* ============ MEDIA STRIP ============ */
.media-strip { padding: 60px 40px; background: #f7f7f5; }
.media-strip-inner { max-width: 1280px; margin: 0 auto; }
.media-strip-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    grid-template-rows: 320px 320px;
    gap: 14px;
}
.media-strip-grid .item {
    border-radius: 6px;
    overflow: hidden;
    background: #ddd;
    position: relative;
}
.media-strip-grid .item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.media-strip-grid .item:hover img { transform: scale(1.05); }
.media-strip-grid .item.tall { grid-row: span 2; }
.media-strip-grid .item.placeholder {
    background: linear-gradient(135deg, #ececec, #d0d3d8);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #9aa0a6;
    font-size: 13px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ============ SPEC ACCORDION ============ */
.product-details { max-width: 900px; margin: 0 auto; padding: 80px 40px; }
.product-details-title {
    font-size: 32px; font-weight: 700; color: #1a1a1a; margin-bottom: 4px;
}
.product-details-sub { font-size: 16px; color: #999; margin-bottom: 32px; }
.spec-accordion { border-top: 1px solid #e8e8e8; }
.spec-section { border-bottom: 1px solid #e8e8e8; }
.spec-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 0; cursor: pointer; user-select: none;
}
.spec-header h3 { font-size: 18px; font-weight: 700; color: #1a1a1a; margin: 0; }
.spec-arrow { font-size: 16px; color: #999; transition: transform 0.3s ease; line-height: 1; }
.spec-section.open .spec-arrow { transform: rotate(180deg); }
.spec-content { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.spec-section.open .spec-content { max-height: 2000px; }
.spec-list {
    padding: 0 0 24px;
    font-size: 16px; color: #444; line-height: 1.8;
}
.spec-list li { list-style: disc; margin-left: 20px; margin-bottom: 4px; }
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; padding-bottom: 24px; }
.spec-row {
    display: flex; justify-content: space-between;
    padding: 12px 16px; border-bottom: 1px solid #f0f0f0;
}
.spec-label { font-size: 15px; color: #666; }
.spec-value { font-size: 15px; font-weight: 700; color: #1a1a1a; }

/* ============ CERTIFICATIONS ============ */
.certifications { max-width: 900px; margin: 0 auto; padding: 0 40px 80px; }
.cert-label { font-size: 14px; font-weight: 700; color: #1a1a1a; margin-bottom: 20px; }
.cert-icons {
    display: flex; align-items: center; justify-content: space-between;
    width: 100%; flex-wrap: wrap; gap: 20px;
}
.cert-icon { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.cert-icon img { height: 36px; width: auto; object-fit: contain; }
.cert-icon span { font-size: 10px; color: #999; letter-spacing: 0.5px; }

/* ============ INTERSTITIAL CTA ============ */
.cta-block {
    background: #0c0e12;
    color: #fff;
    padding: 90px 40px;
    text-align: center;
    background-image: linear-gradient(135deg, rgba(0,183,211,0.18), rgba(0,0,0,0.85)), url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40"><rect width="40" height="40" fill="%23111"/></svg>');
}
.cta-block h2 {
    font-size: 48px; font-weight: 800;
    letter-spacing: -1px; margin-bottom: 14px;
}
.cta-block p {
    font-size: 17px; color: rgba(255,255,255,0.8);
    margin-bottom: 32px; max-width: 600px; margin-left: auto; margin-right: auto;
    line-height: 1.7;
}
.cta-block .ctas { display: flex; gap: 14px; justify-content: center; }
.cta-block .btn-primary {
    background: #00b7d3; color: #fff;
    padding: 14px 34px; border-radius: 4px;
    font-size: 13px; font-weight: 700; letter-spacing: 2px;
    text-transform: uppercase;
    border: 1.5px solid #00b7d3;
    transition: all 0.25s ease;
}
.cta-block .btn-primary:hover { background: #009bb5; border-color: #009bb5; }
.cta-block .btn-ghost {
    background: transparent; color: #fff;
    padding: 14px 34px; border-radius: 4px;
    font-size: 13px; font-weight: 700; letter-spacing: 2px;
    text-transform: uppercase;
    border: 1.5px solid rgba(255,255,255,0.6);
    transition: all 0.25s ease;
}
.cta-block .btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,0.08); }

/* ============ FOOTER ============ */
.site-footer { padding: 60px 40px 40px; border-top: 1px solid #e8e8e8; }
.footer-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr 1.5fr;
    gap: 40px;
    margin-bottom: 60px;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
}
.footer-col h3 { font-size: 18px; font-weight: 700; color: #1a1a1a; margin-bottom: 20px; }
.footer-col p, .footer-col a {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 13px; font-weight: 400;
    line-height: 2; color: #444;
}
.footer-col a { transition: color 0.2s ease; }
.footer-col a:hover { color: #1a1a1a; }
.footer-social { display: flex; gap: 10px; margin-bottom: 24px; align-items: center; }
.footer-social a {
    display: flex; align-items: center; justify-content: center;
    width: 22px; height: 22px;
    font-size: 18px; color: #1a1a1a;
    transition: opacity 0.2s ease;
}
.footer-social a:hover { opacity: 0.6; }
.footer-nav { display: flex; flex-direction: column; gap: 4px; }
.footer-nav a {
    font-family: 'Helvetica Neue', sans-serif;
    font-size: 13px; font-weight: 400; color: #444;
    line-height: 2; text-transform: uppercase; letter-spacing: 0.5px;
}
.footer-bottom {
    padding-top: 20px; border-top: 1px solid #e8e8e8;
    max-width: 1280px; margin: 0 auto;
}
.footer-bottom p { font-size: 12px; color: #999; }

/* ============ Responsive ============ */
@media (max-width: 900px) {
    .product-hero { grid-template-columns: 1fr; gap: 30px; padding-bottom: 50px; }
    .product-hero-info h1 { font-size: 52px; }
    .product-hero-info .quick-specs { grid-template-columns: 1fr; }
    .features-grid { grid-template-columns: 1fr; }
    .media-strip-grid { grid-template-columns: 1fr; grid-template-rows: auto; }
    .media-strip-grid .item.tall { grid-row: auto; }
    .footer-grid { grid-template-columns: 1fr; }
    .cta-block h2 { font-size: 32px; }
    .cta-block .ctas { flex-direction: column; align-items: center; }
}