/* ========================================
   STMI — Main Stylesheet (SPA + i18n)
   ======================================== */

:root {
    --primary: #0A5C9B;
    --primary-light: #1a7fd4;
    --primary-dark: #074880;
    --accent: #F5A623;
    --accent-light: #ffb940;
    --green-esg: #27ae60;
    --led-cyan: #00e5ff;
    --text-dark: #0f1923;
    --text-mid: #3d4f5c;
    --text-light: #6b7c8d;
    --bg-white: #ffffff;
    --bg-light: #f4f7fb;
    --bg-dark: #0d1b2a;
    --bg-darker: #080f18;
    --border: #dde5ef;
    --shadow-sm: 0 2px 8px rgba(10,92,155,0.08);
    --shadow-md: 0 8px 24px rgba(10,92,155,0.13);
    --shadow-lg: 0 20px 60px rgba(10,92,155,0.18);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
    --nav-h: 68px;
    --font-main: 'Inter','Noto Sans KR',sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-main);
    color: var(--text-dark);
    background: var(--bg-white);
    line-height: 1.7;
    overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-main); }
input, textarea { font-family: var(--font-main); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-light { background: var(--bg-light); }

.gradient-text {
    background: linear-gradient(135deg, var(--primary-light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-style: normal;
}

/* Section headers */
.section-header { text-align: center; margin-bottom: 64px; }
.section-header.light .section-title { color: #fff; }
.section-header.light .section-desc { color: rgba(255,255,255,0.65); }
.section-tag {
    display: inline-block;
    background: rgba(10,92,155,0.1);
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: 100px;
    margin-bottom: 16px;
    border: 1px solid rgba(10,92,155,0.15);
}
.section-dark .section-tag {
    background: rgba(26,127,212,0.15);
    color: var(--primary-light);
    border-color: rgba(26,127,212,0.25);
}
.section-title {
    font-size: clamp(1.7rem,3vw,2.5rem);
    font-weight: 800;
    line-height: 1.25;
    color: var(--text-dark);
    margin-bottom: 16px;
}
.section-dark .section-title { color: #fff; }
.section-desc { font-size: 1.05rem; color: var(--text-light); max-width: 600px; margin: 0 auto; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 32px; border-radius: 100px;
    font-size: 0.95rem; font-weight: 600;
    transition: var(--transition); border: none; cursor: pointer;
}
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff; box-shadow: 0 4px 20px rgba(10,92,155,0.3);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(10,92,155,0.4); }
.btn-ghost {
    background: rgba(255,255,255,0.1); color: #fff;
    border: 1.5px solid rgba(255,255,255,0.3); backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.6); transform: translateY(-2px); }
.btn-full { width: 100%; justify-content: center; }

/* ==========================================
   NAVBAR
   ========================================== */
.navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
    padding: 0 24px;
}
.navbar.scrolled { border-bottom-color: var(--border); box-shadow: var(--shadow-sm); }
.nav-container {
    max-width: 1200px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    height: var(--nav-h);
}
.nav-logo { display: flex; align-items: center; }
/* ── 로고 이미지 ── */
.logo-img {
    height: 80px;
    width: auto;
    object-fit: contain;
    display: block;
}
.footer-logo-img {
    height: 64px;
    width: auto;
    object-fit: contain;
    display: block;
    margin-bottom: 16px;
    filter: brightness(0) invert(1);
    opacity: 0.85;
}
.contact-logo-img {
    height: 60px;
    width: auto;
    object-fit: contain;
    display: block;
    filter: brightness(0) invert(1);
}

/* 목표치 뱃지 */
.stat-target-badge {
    display: inline-block;
    background: rgba(245,166,35,0.18);
    border: 1px solid rgba(245,166,35,0.45);
    color: var(--accent);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 2px 8px;
    border-radius: 100px;
    margin-bottom: 6px;
}

.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-link {
    padding: 8px 14px; font-size: 0.9rem; font-weight: 500;
    color: var(--text-mid); border-radius: var(--radius-sm);
    transition: var(--transition); cursor: pointer; background: none; border: none;
}
.nav-link:hover { color: var(--primary); background: rgba(10,92,155,0.06); }
.nav-link.active { color: var(--primary); background: rgba(10,92,155,0.06); }
.nav-cta {
    background: var(--primary); color: #fff !important;
    padding: 9px 22px; border-radius: 100px; margin-left: 8px;
}
.nav-cta:hover { background: var(--primary-light); transform: translateY(-1px); }

.nav-right { display: flex; align-items: center; gap: 10px; }

/* ==========================================
   NAV DROPDOWN
   ========================================== */
.nav-item-dropdown { position: relative; }

.nav-chevron {
    font-size: 0.6rem; margin-left: 3px;
    transition: transform 0.25s ease;
    vertical-align: middle; opacity: 0.55;
}
.nav-item-dropdown:hover .nav-chevron { transform: rotate(180deg); }

.nav-dropdown {
    position: absolute; top: calc(100% + 8px); left: 50%;
    transform: translateX(-50%) translateY(6px);
    opacity: 0; pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 2000;
    min-width: 180px;
}
.nav-item-dropdown:hover .nav-dropdown {
    opacity: 1; pointer-events: all;
    transform: translateX(-50%) translateY(0);
}

.nav-dropdown-inner {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 12px 32px rgba(10,92,155,0.13);
    padding: 6px;
    display: flex; flex-direction: column; gap: 2px;
    position: relative;
}

/* 말풍선 꼭짓점 */
.nav-dropdown-inner::before {
    content: '';
    position: absolute; top: -5px; left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 10px; height: 10px;
    background: #fff;
    border-top: 1px solid var(--border);
    border-left: 1px solid var(--border);
    border-radius: 2px 0 0 0;
}

.dropdown-link {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 14px; border-radius: var(--radius-sm);
    font-size: 0.875rem; font-weight: 500; color: var(--text-mid);
    transition: var(--transition); cursor: pointer; white-space: nowrap;
}
.dropdown-link:hover {
    background: rgba(10,92,155,0.07);
    color: var(--primary);
}
.dl-dot {
    width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0;
}
.dl-dot--blue  { background: var(--primary); }
.dl-dot--green { background: var(--green-esg); }
.dl-dot--orange { background: var(--accent); }
.dl-dot--purple { background: #9b59b6; }

/* 모바일에서 드롭다운 숨김 */
@media (max-width: 768px) {
    .nav-dropdown { display: none; }
    .nav-chevron { display: none; }
}

/* Language Toggle */
.lang-toggle {
    display: flex; align-items: center; gap: 2px;
    background: var(--bg-light); border: 1px solid var(--border);
    border-radius: 100px; padding: 3px 6px;
    flex-shrink: 0;
}
.lang-btn {
    background: none; border: none;
    font-size: 0.72rem; font-weight: 700; letter-spacing: 0.04em;
    color: var(--text-light); padding: 5px 9px; border-radius: 100px;
    transition: var(--transition); cursor: pointer; white-space: nowrap;
    min-width: 32px; text-align: center;
    -webkit-tap-highlight-color: transparent;
}
.lang-btn.active { background: var(--primary); color: #fff; }
.lang-btn:hover:not(.active) { color: var(--primary); }
.lang-divider { color: var(--border); font-size: 0.7rem; user-select: none; }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text-dark); border-radius: 2px; transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================
   SPA ENGINE
   ========================================== */
.spa-wrapper { padding-top: var(--nav-h); }
.spa-page { display: none; min-height: calc(100vh - var(--nav-h)); animation: pageIn 0.4s ease; }
.spa-page.active { display: block; }

@keyframes pageIn {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ==========================================
   PAGE HEROES (sub-page banners)
   ========================================== */
.page-hero {
    padding: 80px 0 60px;
    position: relative; overflow: hidden;
}
.page-hero--about  { background: linear-gradient(135deg, #0d1b2a 0%, #0a2a4a 100%); }
.page-hero--tech   { background: linear-gradient(135deg, #07162a 0%, #0a3460 100%); }
.page-hero--products { background: linear-gradient(135deg, #0d1b2a 0%, #1a2d40 100%); }
.page-hero--esg    { background: linear-gradient(135deg, #0a1f15 0%, #0d2a1a 100%); }
.page-hero--cases  { background: linear-gradient(135deg, #0d1b2a 0%, #1a1500 60%, #0d1010 100%); }
.page-hero--contact{ background: linear-gradient(135deg, #0d1b2a 0%, #0a204a 100%); }
.page-hero .container { position: relative; z-index: 2; }
.page-hero h1 {
    font-size: clamp(2rem, 4vw, 3rem); font-weight: 800;
    color: #fff; margin-bottom: 12px; letter-spacing: -0.02em;
}
.page-hero p { font-size: 1.05rem; color: rgba(255,255,255,0.65); }
.page-breadcrumb {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.8rem; color: rgba(255,255,255,0.45);
    margin-bottom: 20px;
}
.page-breadcrumb i { font-size: 0.65rem; }

/* ==========================================
   HERO (Home page)
   ========================================== */
.hero {
    min-height: calc(100vh - var(--nav-h));
    background: linear-gradient(135deg, var(--bg-dark) 0%, #0d2a45 50%, #0a1e35 100%);
    display: grid; grid-template-columns: 1fr 1fr;
    align-items: center; padding: 60px 5%;
    position: relative; overflow: hidden; gap: 60px;
}
.hero-bg-grid {
    position: absolute; inset: 0;
    background-image:
        linear-gradient(rgba(26,127,212,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(26,127,212,0.04) 1px, transparent 1px);
    background-size: 60px 60px; pointer-events: none;
}
.hero-particles { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.particle {
    position: absolute; border-radius: 50%;
    background: rgba(26,127,212,0.15);
    animation: floatUp linear infinite;
}
@keyframes floatUp {
    0%   { transform: translateY(100vh) scale(0); opacity: 0; }
    10%  { opacity: 1; }
    90%  { opacity: 0.5; }
    100% { transform: translateY(-100px) scale(1); opacity: 0; }
}
.hero-content { position: relative; z-index: 2; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(26,127,212,0.15); border: 1px solid rgba(26,127,212,0.3);
    color: var(--primary-light); font-size: 0.8rem; font-weight: 600;
    letter-spacing: 0.08em; padding: 8px 18px; border-radius: 100px;
    margin-bottom: 28px; backdrop-filter: blur(8px);
}
.hero-title {
    font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800;
    line-height: 1.2; color: #fff; margin-bottom: 24px; letter-spacing: -0.02em;
}
.hero-desc { font-size: 1.05rem; color: rgba(255,255,255,0.65); margin-bottom: 40px; line-height: 1.8; }
.hero-stats {
    display: flex; align-items: center; gap: 32px; margin-bottom: 40px;
    padding: 24px 28px;
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-md); backdrop-filter: blur(8px);
}
.stat-item { text-align: center; }
.stat-num { display: block; font-size: 1.8rem; font-weight: 800; color: var(--accent); line-height: 1; margin-bottom: 4px; }
.stat-label { font-size: 0.78rem; color: rgba(255,255,255,0.6); font-weight: 500; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.15); }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-visual { position: relative; z-index: 2; }
.hero-img-wrap {
    position: relative; border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: 0 30px 80px rgba(0,0,0,0.5); border: 1px solid rgba(255,255,255,0.1);
}
.hero-img { width: 100%; height: 480px; object-fit: cover; transition: transform 0.6s ease; }
.hero-img-wrap:hover .hero-img { transform: scale(1.03); }
.hero-img-badge {
    position: absolute; bottom: 20px; left: 20px;
    background: rgba(0,0,0,0.75); backdrop-filter: blur(12px); color: #fff;
    padding: 10px 18px; border-radius: 100px; font-size: 0.82rem; font-weight: 600;
    display: flex; align-items: center; gap: 8px; border: 1px solid rgba(255,255,255,0.15);
}
.hero-img-badge i { color: var(--accent); }
.hero-scroll {
    position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
    text-align: center; color: rgba(255,255,255,0.4); font-size: 0.75rem; z-index: 2;
}
.scroll-indicator { width: 24px; height: 38px; border: 1.5px solid rgba(255,255,255,0.25); border-radius: 12px; margin: 0 auto 8px; position: relative; }
.scroll-indicator span { position: absolute; top: 6px; left: 50%; transform: translateX(-50%); width: 3px; height: 8px; background: rgba(255,255,255,0.5); border-radius: 2px; animation: scrollDown 1.8s ease-in-out infinite; }
@keyframes scrollDown { 0%,100% { top: 6px; opacity: 1; } 70% { top: 18px; opacity: 0.3; } }

/* ==========================================
   HOME QUICK NAV
   ========================================== */
.home-quicknav { padding: 80px 0 96px; background: var(--bg-dark); }
.home-section-header { text-align: center; margin-bottom: 52px; }
.home-section-header h2 {
    font-size: clamp(1.4rem, 2.4vw, 2rem);
    font-weight: 800; color: #fff; margin-bottom: 8px;
    letter-spacing: -0.02em;
}
.home-section-header p {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.32);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 500;
}

.quicknav-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* ─ Card Base ─ */
.qnav-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    display: flex; flex-direction: column;
    text-align: left; transition: var(--transition); cursor: pointer;
    position: relative; overflow: hidden;
}
.qnav-card:hover {
    transform: translateY(-8px);
    border-color: rgba(26,127,212,0.4);
    box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}

/* ─ Image Section ─ */
.qnav-img-wrap {
    width: 100%; height: 200px;
    position: relative; overflow: hidden;
    flex-shrink: 0;
}
.qnav-img-wrap img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.6s ease;
    display: block;
}
.qnav-card:hover .qnav-img-wrap img { transform: scale(1.08); }
.qnav-img-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to bottom, transparent 30%, rgba(0,0,0,0.6) 100%);
}

/* ─ ESG Visual placeholder ─ */
.qnav-esg-bg {
    background: linear-gradient(135deg, #0a1f15 0%, #0d3020 100%);
    display: flex; align-items: center; justify-content: center;
}
.qnav-esg-visual {
    display: flex; align-items: center; gap: 16px;
    position: relative; z-index: 2;
}
.qnav-esg-circle {
    width: 64px; height: 64px; border-radius: 50%;
    font-size: 1.6rem; font-weight: 900; font-style: italic;
    display: flex; align-items: center; justify-content: center;
    color: #fff; box-shadow: 0 0 24px rgba(0,0,0,0.4);
}
.qnav-esg-circle.e { background: var(--green-esg); }
.qnav-esg-circle.s { background: var(--primary); margin-top: -12px; }
.qnav-esg-circle.g { background: var(--accent); }

/* ─ Contact Visual placeholder ─ */
.qnav-contact-bg {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #0a3466 100%);
    display: flex; align-items: center; justify-content: center;
}
.qnav-contact-visual {
    display: flex; flex-direction: column; align-items: center; gap: 10px;
    position: relative; z-index: 2;
    color: rgba(255,255,255,0.7);
}
.qnav-contact-visual i { font-size: 2.4rem; color: var(--accent); }
.qnav-contact-visual span { font-size: 0.88rem; font-weight: 600; color: rgba(255,255,255,0.7); }

/* ─ Top-left badge ─ */
.qnav-img-badge-tl {
    position: absolute; top: 14px; left: 14px; z-index: 3;
    background: rgba(0,0,0,0.55); backdrop-filter: blur(10px);
    color: rgba(255,255,255,0.9); font-size: 0.72rem; font-weight: 600;
    padding: 5px 12px; border-radius: 100px;
    border: 1px solid rgba(255,255,255,0.18);
    display: flex; align-items: center; gap: 5px;
}
.qnav-img-badge-tl i { color: var(--accent); }

/* ─ Case flag badge ─ */
.qnav-cases-flag {
    position: absolute; top: 14px; right: 14px; z-index: 3;
    background: rgba(0,0,0,0.6); backdrop-filter: blur(8px);
    color: #fff; font-size: 0.72rem; font-weight: 600;
    padding: 5px 12px; border-radius: 100px;
    border: 1px solid rgba(255,255,255,0.15);
}

/* ─ Body Section ─ */
.qnav-body {
    padding: 24px 26px 26px;
    display: flex; align-items: flex-start; gap: 16px;
    position: relative;
}
.qnav-icon {
    width: 48px; height: 48px; flex-shrink: 0;
    background: linear-gradient(135deg, rgba(26,127,212,0.2), rgba(26,127,212,0.1));
    border: 1px solid rgba(26,127,212,0.25);
    border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
    font-size: 1.1rem; color: var(--primary-light); transition: var(--transition);
}
.qnav-card:hover .qnav-icon {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}
.qnav-text { flex: 1; }
.qnav-text h3 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.qnav-text p { font-size: 0.83rem; color: rgba(255,255,255,0.5); line-height: 1.6; }

.qnav-arrow {
    color: var(--primary-light); font-size: 1rem;
    opacity: 0; transform: translateX(-4px); transition: var(--transition);
    margin-left: auto; margin-top: 4px; flex-shrink: 0;
}
.qnav-card:hover .qnav-arrow { opacity: 1; transform: translateX(0); }

/* ─ Tech card accent ─ */
.qnav-tech .qnav-img-overlay {
    background: linear-gradient(to bottom, rgba(0,30,80,0.3) 0%, rgba(0,10,40,0.75) 100%);
}

/* ==========================================
   ABOUT
   ========================================== */

/* Vision Section */
.about-vision-section { padding: 80px 0; }
.about-vision-layout {
    display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center;
}
.about-vision-img {
    position: relative; border-radius: var(--radius-xl); overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.about-vision-img img { width: 100%; height: 420px; object-fit: cover; display: block; }
.about-vision-flag {
    position: absolute; bottom: 20px; left: 20px;
    background: rgba(0,0,0,0.72); backdrop-filter: blur(12px); color: #fff;
    padding: 10px 18px; border-radius: 100px; font-size: 0.82rem; font-weight: 600;
    display: flex; align-items: center; gap: 8px; border: 1px solid rgba(255,255,255,0.15);
}
.about-vision-flag i { color: var(--accent); }
.about-vision-content { display: flex; flex-direction: column; gap: 20px; }
.about-vision-title {
    font-size: clamp(1.6rem,2.8vw,2.4rem); font-weight: 800; line-height: 1.3;
    color: var(--text-dark);
}
.about-vision-desc { font-size: 0.96rem; color: var(--text-light); line-height: 1.85; }
.about-kpi-row {
    display: flex; align-items: center; gap: 0;
    background: var(--bg-light); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 24px 28px; margin-top: 8px;
}
.about-kpi { flex: 1; text-align: center; }
.about-kpi-num { display: block; font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.about-kpi-label { font-size: 0.78rem; color: var(--text-light); margin-top: 4px; display: block; }
.about-kpi-divider { width: 1px; height: 40px; background: var(--border); flex-shrink: 0; }

.about-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.about-card {
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius-md); padding: 36px 28px; text-align: center;
    transition: var(--transition); position: relative; overflow: hidden;
}
.about-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transform: scaleX(0); transform-origin: left; transition: var(--transition);
}
.about-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.about-card:hover::before { transform: scaleX(1); }
.about-icon {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, rgba(10,92,155,0.1), rgba(26,127,212,0.15));
    border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center;
    margin: 0 auto 20px; font-size: 1.5rem; color: var(--primary); transition: var(--transition);
}
.about-card:hover .about-icon { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; transform: scale(1.1); }
.about-card h3 { font-size: 1.05rem; font-weight: 700; margin-bottom: 12px; }
.about-card p { font-size: 0.88rem; color: var(--text-light); line-height: 1.7; }

/* ==========================================
   TECHNOLOGY
   ========================================== */
.tech-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.tech-img-container { position: relative; border-radius: var(--radius-lg); }
.tech-img {
    border-radius: var(--radius-lg); width: 100%; object-fit: contain;
    background: #fff; box-shadow: 0 24px 64px rgba(0,0,0,0.4);
    border: 1px solid rgba(255,255,255,0.1);
}
.tech-glow {
    position: absolute; inset: -20px;
    background: radial-gradient(ellipse at center, rgba(26,127,212,0.15) 0%, transparent 70%);
    border-radius: 50%; pointer-events: none; z-index: -1;
}
.tech-feature {
    display: flex; gap: 20px; margin-bottom: 24px; padding: 24px;
    background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-md); transition: var(--transition);
}
.tech-feature:last-child { margin-bottom: 0; }
.tech-feature:hover { background: rgba(26,127,212,0.08); border-color: rgba(26,127,212,0.2); transform: translateX(4px); }
.tech-feature-icon {
    flex-shrink: 0; width: 48px; height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.1rem;
}
.tech-feature-text h4 { font-size: 0.95rem; font-weight: 700; color: #fff; margin-bottom: 6px; }
.tech-feature-text p { font-size: 0.85rem; color: rgba(255,255,255,0.6); line-height: 1.6; }

/* ==========================================
   COMPARISON (now inside Tech page)
   ========================================== */
.comp-table-wrap { overflow-x: auto; border-radius: var(--radius-lg); box-shadow: var(--shadow-md); border: 1px solid var(--border); }
.comp-table { width: 100%; border-collapse: collapse; background: #fff; font-size: 0.9rem; }
.comp-table th { padding: 18px 24px; font-size: 0.85rem; font-weight: 700; text-align: center; }
.comp-table th.comp-feature { text-align: left; background: var(--bg-light); color: var(--text-mid); }
.comp-table th.comp-steel { background: #f0f0f2; color: var(--text-light); }
.comp-table th.comp-regular-pvc { background: #f0f4f8; color: var(--text-light); }
.comp-table th.comp-gnp { background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; }
.highlight-col { background: rgba(10,92,155,0.03) !important; }
.comp-table td { padding: 16px 24px; border-top: 1px solid var(--bg-light); text-align: center; }
.comp-table td.feature-name { text-align: left; font-weight: 600; color: var(--text-mid); display: flex; align-items: center; gap: 10px; min-width: 160px; }
.comp-table td.feature-name i { color: var(--primary); width: 18px; }
.best-badge { background: var(--accent); color: #fff; font-size: 0.65rem; padding: 2px 8px; border-radius: 100px; margin-left: 6px; }
.fas.bad { color: #e74c3c; } .fas.good { color: var(--green-esg); } .fas.mid { color: var(--accent); } .fas.best { color: var(--primary-light); }
.gnp-val { color: var(--primary); font-weight: 700; }
.comp-note { margin-top: 20px; font-size: 0.8rem; color: var(--text-light); text-align: center; font-style: italic; }

/* ── 핵심기술 내부 소재비교 블록 ── */
.tech-compare-block {
    margin-top: 72px;
    padding-top: 56px;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.tech-compare-header {
    margin-bottom: 32px;
}
.tech-compare-header .section-tag {
    background: rgba(26,127,212,0.15);
    color: var(--primary-light);
    border-color: rgba(26,127,212,0.25);
}
.tech-compare-title {
    font-size: clamp(1.3rem,2vw,1.8rem);
    font-weight: 800; color: #fff;
    margin-top: 12px;
}
/* 어두운 배경 위 테이블 */
.tech-compare-block .comp-table-wrap {
    border-color: rgba(255,255,255,0.1);
}
.tech-compare-block .comp-table {
    background: rgba(255,255,255,0.03);
}
.tech-compare-block .comp-table th.comp-feature {
    background: rgba(255,255,255,0.05); color: rgba(255,255,255,0.5);
}
.tech-compare-block .comp-table th.comp-steel {
    background: rgba(255,255,255,0.03); color: rgba(255,255,255,0.4);
}
.tech-compare-block .comp-table th.comp-regular-pvc {
    background: rgba(255,255,255,0.04); color: rgba(255,255,255,0.4);
}
.tech-compare-block .comp-table td {
    border-top-color: rgba(255,255,255,0.06);
    color: rgba(255,255,255,0.7);
}
.tech-compare-block .comp-table td.feature-name { color: rgba(255,255,255,0.85); }
.tech-compare-block .comp-note { color: rgba(255,255,255,0.35); }
.tech-compare-block .highlight-col { background: rgba(26,127,212,0.08) !important; }

/* ==========================================
   MARKET / TREND SECTION
   ========================================== */
.market-section { background: var(--bg-light); }

/* 수치 카드 */
.market-stats-row {
    display: grid; grid-template-columns: repeat(4,1fr); gap: 20px;
    margin-bottom: 64px;
}
.mstat-card {
    background: #fff; border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 32px 24px;
    text-align: center; transition: var(--transition);
    box-shadow: var(--shadow-sm);
}
.mstat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.mstat-icon {
    width: 52px; height: 52px; margin: 0 auto 16px;
    background: linear-gradient(135deg, rgba(10,92,155,0.1), rgba(26,127,212,0.15));
    border-radius: var(--radius-md); display: flex; align-items: center;
    justify-content: center; font-size: 1.2rem; color: var(--primary);
}
.mstat-num {
    font-size: 1.6rem; font-weight: 900; color: var(--primary);
    line-height: 1.2; margin-bottom: 10px;
}
.mstat-label { font-size: 0.8rem; color: var(--text-light); line-height: 1.5; }

/* 트렌드 이미지 카드 (새 디자인) */
.trend-cards-new {
    display: grid; grid-template-columns: repeat(4,1fr); gap: 20px;
}
.trend-card-new {
    border-radius: var(--radius-lg); overflow: hidden;
    position: relative; min-height: 380px;
    display: flex; flex-direction: column; justify-content: flex-end;
    transition: var(--transition); cursor: default;
    background-image: var(--tc-img);
    background-size: cover; background-position: center;
}
.trend-card-new:hover { transform: translateY(-6px); box-shadow: 0 24px 56px rgba(0,0,0,0.28); }
.trend-card-new:hover .tcn-body { padding-bottom: 32px; }
.tcn-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(to top, rgba(5,15,35,0.95) 0%, rgba(5,15,35,0.55) 55%, rgba(5,15,35,0.1) 100%);
    transition: var(--transition);
}
.trend-card-new:hover .tcn-overlay {
    background: linear-gradient(to top, rgba(5,15,35,0.98) 0%, rgba(5,15,35,0.7) 60%, rgba(5,15,35,0.25) 100%);
}
.tcn-body {
    position: relative; z-index: 2;
    padding: 28px 24px 24px; transition: padding 0.3s ease;
}
.tcn-num {
    font-size: 0.7rem; font-weight: 700; letter-spacing: 0.15em;
    color: var(--accent); margin-bottom: 12px; opacity: 0.8;
}
.tcn-icon {
    width: 40px; height: 40px; border-radius: var(--radius-sm);
    background: rgba(26,127,212,0.25); border: 1px solid rgba(26,127,212,0.4);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary-light); font-size: 1rem;
    margin-bottom: 14px;
}
.tcn-body h4 {
    font-size: 0.97rem; font-weight: 700; color: #fff;
    margin-bottom: 10px; line-height: 1.35;
}
.tcn-body p {
    font-size: 0.81rem; color: rgba(255,255,255,0.55);
    line-height: 1.65;
    max-height: 0; overflow: hidden;
    transition: max-height 0.35s ease, opacity 0.35s ease;
    opacity: 0;
}
.trend-card-new:hover .tcn-body p {
    max-height: 120px; opacity: 1;
}

@media (max-width: 1024px) {
    .market-stats-row { grid-template-columns: repeat(2,1fr); }
    .trend-cards-new  { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
    .market-stats-row { grid-template-columns: repeat(2,1fr); gap: 14px; }
    .trend-cards-new  { grid-template-columns: 1fr 1fr; gap: 14px; }
    .trend-card-new   { min-height: 280px; }
}
@media (max-width: 480px) {
    .market-stats-row { grid-template-columns: 1fr 1fr; gap: 12px; }
    .trend-cards-new  { grid-template-columns: 1fr; }
    .trend-card-new   { min-height: 240px; }
    /* 모바일에서는 텍스트 항상 표시 */
    .tcn-body p { max-height: none; opacity: 1; }
}

/* ==========================================
   PRODUCTS SECTION
   ========================================== */
.product-tabs { display: flex; gap: 12px; margin-bottom: 40px; flex-wrap: wrap; }
.prod-tab {
    flex: 1; min-width: 160px; display: flex; align-items: center; gap: 14px;
    padding: 18px 24px; background: var(--bg-white); border: 2px solid var(--border);
    border-radius: var(--radius-md); transition: var(--transition); text-align: left;
}
.prod-tab:hover { border-color: var(--primary-light); box-shadow: var(--shadow-sm); }
.prod-tab.active { border-color: var(--primary); background: linear-gradient(135deg,rgba(10,92,155,0.05),rgba(26,127,212,0.08)); }
.tab-code {
    width: 44px; height: 44px; background: var(--bg-light); border-radius: var(--radius-sm);
    font-size: 1.4rem; font-weight: 900; color: var(--text-light);
    display: flex; align-items: center; justify-content: center; transition: var(--transition); font-style: italic;
}
.prod-tab.active .tab-code { background: var(--primary); color: #fff; }
.tab-name { font-size: 0.9rem; font-weight: 600; color: var(--text-mid); }
.prod-tab.active .tab-name { color: var(--primary); }

.product-panel { display: none; animation: fadeInPanel 0.4s ease; }
.product-panel.active { display: block; }
@keyframes fadeInPanel { from { opacity:0; transform:translateY(12px); } to { opacity:1; transform:translateY(0); } }

.panel-layout {
    display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
    background: var(--bg-white); border: 1px solid var(--border);
    border-radius: var(--radius-xl); padding: 40px; box-shadow: var(--shadow-md);
}
.panel-img-wrap { position: relative; border-radius: var(--radius-lg); overflow: hidden; background: #f0f0f0; }
.panel-img-wrap img { width: 100%; height: 300px; object-fit: cover; transition: transform 0.5s ease; }
.panel-img-wrap:hover img { transform: scale(1.04); }
.panel-img-tag {
    position: absolute; top: 16px; left: 16px;
    background: rgba(10,92,155,0.85); backdrop-filter: blur(8px); color: #fff;
    font-size: 0.78rem; font-weight: 700; padding: 6px 14px; border-radius: 100px;
}
.panel-img-tag.led { background: rgba(0,50,30,0.85); border: 1px solid rgba(0,229,255,0.3); }
.led-sample-label {
    position: absolute; bottom: 16px; right: 16px;
    background: rgba(0,0,0,0.7); backdrop-filter: blur(8px); color: var(--led-cyan);
    font-size: 0.75rem; font-weight: 600; padding: 6px 14px; border-radius: 100px;
    border: 1px solid rgba(0,229,255,0.3); display: flex; align-items: center; gap: 6px;
}
.panel-spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
.spec-box { background: var(--bg-light); border-radius: var(--radius-sm); padding: 12px 14px; display: flex; flex-direction: column; gap: 4px; }
.spec-label { font-size: 0.73rem; color: var(--text-light); font-weight: 500; }
.spec-val { font-size: 0.92rem; font-weight: 700; color: var(--primary); }
.panel-category-badge {
    display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em;
    padding: 6px 16px; border-radius: 100px; margin-bottom: 16px;
}
.panel-category-badge.s { background: rgba(10,92,155,0.1); color: var(--primary); }
.panel-category-badge.t { background: rgba(245,166,35,0.1); color: #c07d00; }
.panel-category-badge.m { background: rgba(39,174,96,0.1); color: var(--green-esg); }
.panel-category-badge.i { background: rgba(0,229,255,0.1); color: #0080a0; border: 1px solid rgba(0,229,255,0.2); }
.panel-title { font-size: 1.3rem; font-weight: 800; margin-bottom: 16px; }
.panel-desc { font-size: 0.92rem; color: var(--text-light); line-height: 1.8; margin-bottom: 24px; }
.panel-features { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.panel-features li { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; color: var(--text-mid); }
.panel-features li i { color: var(--green-esg); font-size: 0.9rem; flex-shrink: 0; }
.panel-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.ptag { background: var(--bg-light); border: 1px solid var(--border); color: var(--text-light); font-size: 0.78rem; font-weight: 500; padding: 5px 12px; border-radius: 100px; }

/* LED Demo */
.led-demo { margin-bottom: 20px; }
.led-demo-bar { background: #1a1000; border: 2px solid #f5a623; border-radius: 30px; padding: 8px 16px; overflow: hidden; margin-bottom: 8px; }
.led-arrows { display: flex; gap: 6px; align-items: center; }
.led-arrow { color: var(--led-cyan); font-size: 1.2rem; font-weight: 900; text-shadow: 0 0 8px var(--led-cyan), 0 0 16px var(--led-cyan); }
.led-caption { font-size: 0.75rem; color: var(--text-light); text-align: center; font-style: italic; }

/* ==========================================
   ESG
   ========================================== */
.esg-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; margin-bottom: 64px; }
.esg-card { border-radius: var(--radius-lg); padding: 36px 32px; border: 1px solid; transition: var(--transition); }
.esg-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.e-card { background: rgba(39,174,96,0.04); border-color: rgba(39,174,96,0.2); }
.s-card { background: rgba(10,92,155,0.04); border-color: rgba(10,92,155,0.2); }
.g-card { background: rgba(245,166,35,0.04); border-color: rgba(245,166,35,0.2); }
.esg-header { display: flex; align-items: center; gap: 16px; margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid rgba(0,0,0,0.06); }
.esg-letter { width: 56px; height: 56px; border-radius: var(--radius-md); font-size: 1.8rem; font-weight: 900; display: flex; align-items: center; justify-content: center; font-style: italic; }
.e-card .esg-letter { background: var(--green-esg); color: #fff; }
.s-card .esg-letter { background: var(--primary); color: #fff; }
.g-card .esg-letter { background: var(--accent); color: #fff; }
.esg-sub { font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; opacity: 0.6; }
.esg-title-wrap h3 { font-size: 1.15rem; font-weight: 800; }
.esg-list { display: flex; flex-direction: column; gap: 20px; }
.esg-list li { display: flex; gap: 14px; align-items: flex-start; }
.esg-icon { flex-shrink: 0; width: 36px; height: 36px; border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; font-size: 0.9rem; margin-top: 2px; }
.e-card .esg-icon { background: rgba(39,174,96,0.1); color: var(--green-esg); }
.s-card .esg-icon { background: rgba(10,92,155,0.1); color: var(--primary); }
.g-card .esg-icon { background: rgba(245,166,35,0.1); color: #c07d00; }
.esg-list li strong { display: block; font-size: 0.9rem; font-weight: 700; margin-bottom: 4px; }
.esg-list li p { font-size: 0.82rem; color: var(--text-light); line-height: 1.5; }

.esg-metrics {
    display: grid; grid-template-columns: repeat(4,1fr); gap: 24px;
    padding: 48px 40px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    border-radius: var(--radius-xl);
}
.metric-item { text-align: center; }
.metric-circle { position: relative; width: 110px; height: 110px; margin: 0 auto 16px; }
.metric-svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.bg-circle { fill: none; stroke: rgba(255,255,255,0.15); stroke-width: 8; }
.fg-circle {
    fill: none; stroke: var(--accent); stroke-width: 8; stroke-linecap: round;
    stroke-dasharray: calc(2 * 3.14159 * 42);
    stroke-dashoffset: calc(2 * 3.14159 * 42 * (1 - var(--percent) / 100));
    transition: stroke-dashoffset 1.5s ease;
}
.metric-num { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); font-size: 1.1rem; font-weight: 800; color: #fff; }
.metric-label { font-size: 0.82rem; color: rgba(255,255,255,0.8); font-weight: 500; line-height: 1.4; }
.metric-label small { font-size: 0.72rem; color: rgba(255,255,255,0.55); }

/* ==========================================
   CASES
   ========================================== */
.cases-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 28px; }
.case-card { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-lg); overflow: hidden; transition: var(--transition); }
.case-card:hover { transform: translateY(-4px); border-color: rgba(26,127,212,0.3); box-shadow: 0 16px 48px rgba(0,0,0,0.3); }
.case-img-wrap { position: relative; overflow: hidden; }
.case-img-wrap img { width: 100%; height: 260px; object-fit: cover; transition: transform 0.5s ease; }
.case-card:hover .case-img-wrap img { transform: scale(1.04); }
.case-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 50%); display: flex; align-items: flex-end; padding: 20px; gap: 12px; }
.case-flag { font-size: 1.8rem; }
.case-info h4 { font-size: 0.95rem; font-weight: 700; color: #fff; }
.case-info p { font-size: 0.78rem; color: rgba(255,255,255,0.7); }
.case-tag { display: inline-block; font-size: 0.7rem; font-weight: 600; padding: 3px 10px; border-radius: 100px; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.2); color: #fff; margin-bottom: 6px; }
.case-tag.featured-tag { background: rgba(245,166,35,0.3); border-color: rgba(245,166,35,0.5); color: var(--accent-light); }
.case-detail { padding: 28px; }
.case-detail-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 16px; gap: 12px; }
.case-detail-header h4 { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 4px; }
.case-location { font-size: 0.8rem; color: rgba(255,255,255,0.5); display: flex; align-items: center; gap: 6px; }
.case-type-badge { flex-shrink: 0; background: rgba(26,127,212,0.2); border: 1px solid rgba(26,127,212,0.3); color: var(--primary-light); font-size: 0.75rem; font-weight: 700; padding: 5px 12px; border-radius: 100px; }
.i-badge { background: rgba(0,229,255,0.1); border-color: rgba(0,229,255,0.2); color: var(--led-cyan); }
.case-desc { font-size: 0.85rem; color: rgba(255,255,255,0.55); line-height: 1.7; margin-bottom: 20px; }
.case-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08); }
.cs-item { text-align: center; }
.cs-num { display: block; font-size: 0.85rem; font-weight: 800; color: var(--accent); margin-bottom: 4px; }
.cs-label { font-size: 0.72rem; color: rgba(255,255,255,0.45); }

/* ==========================================
   CONTACT
   ========================================== */
.contact-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: start; }
.contact-form { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius-xl); padding: 40px; box-shadow: var(--shadow-sm); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-mid); margin-bottom: 8px; }
.req { color: #e74c3c; }
.form-group input, .form-group textarea { width: 100%; padding: 12px 16px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: 0.9rem; color: var(--text-dark); transition: var(--transition); background: var(--bg-white); outline: none; resize: vertical; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(10,92,155,0.1); }
.product-select-group { display: flex; flex-wrap: wrap; gap: 10px; }
.check-label { display: flex; align-items: center; gap: 8px; padding: 8px 16px; border: 1.5px solid var(--border); border-radius: var(--radius-sm); font-size: 0.85rem; cursor: pointer; transition: var(--transition); font-weight: 500; color: var(--text-mid); }
.check-label:hover { border-color: var(--primary); color: var(--primary); }
.check-label input { accent-color: var(--primary); }

.contact-info-card { background: linear-gradient(135deg, var(--primary-dark), var(--primary)); color: #fff; border-radius: var(--radius-xl); padding: 36px; margin-bottom: 20px; }
.contact-logo-wrap { margin-bottom: 16px; }
.contact-logo { height: 36px; width: auto; filter: brightness(0) invert(1); }
.contact-info-card > p { font-size: 0.88rem; color: rgba(255,255,255,0.7); margin-bottom: 28px; line-height: 1.6; }
.contact-details { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; }
.contact-details li { display: flex; align-items: center; gap: 12px; font-size: 0.88rem; color: rgba(255,255,255,0.8); }
.contact-details li i { color: var(--accent); width: 18px; }
.contact-certs { display: flex; flex-wrap: wrap; gap: 8px; }
.cert-badge { background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.15); color: rgba(255,255,255,0.85); font-size: 0.75rem; font-weight: 600; padding: 6px 14px; border-radius: 100px; display: flex; align-items: center; gap: 6px; }
.saudi-badge-card { background: var(--bg-light); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; }
.saudi-logo-area { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.saudi-icon { width: 48px; height: 48px; background: linear-gradient(135deg, #006c35, #00a550); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 1.2rem; }
.saudi-logo-area strong { display: block; font-size: 0.95rem; font-weight: 700; }
.saudi-logo-area span { font-size: 0.75rem; color: var(--text-light); }
.saudi-badge-card p { font-size: 0.82rem; color: var(--text-light); line-height: 1.6; }

/* ==========================================
   FOOTER
   ========================================== */
.footer { background: var(--bg-darker); color: rgba(255,255,255,0.7); padding: 64px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.5fr 2fr; gap: 60px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-brand p { font-size: 0.85rem; line-height: 1.8; color: rgba(255,255,255,0.4); }
.footer-links { display: grid; grid-template-columns: repeat(3,1fr); gap: 32px; }
.footer-col h5 { font-size: 0.85rem; font-weight: 700; color: rgba(255,255,255,0.9); margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.06em; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 0.84rem; color: rgba(255,255,255,0.4); transition: var(--transition); cursor: pointer; }
.footer-col a:hover { color: rgba(255,255,255,0.9); padding-left: 4px; }
.footer-bottom { padding: 20px 0; display: flex; flex-direction: column; align-items: center; gap: 10px; border-top: 1px solid rgba(255,255,255,0.06); }
.footer-bottom p { font-size: 0.8rem; color: rgba(255,255,255,0.3); }

/* 회사 정보 바 */
.footer-corp-bar {
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-corp-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 6px 0;
    font-size: 0.78rem;
    color: rgba(255,255,255,0.38);
    line-height: 1.8;
    text-align: center;
}
.footer-corp-info span { padding: 0 2px; }
.fc-divider {
    color: rgba(255,255,255,0.2);
    padding: 0 8px;
    font-size: 0.7rem;
}
.fc-mail {
    color: rgba(255,255,255,0.5);
    transition: var(--transition);
}
.fc-mail:hover { color: rgba(255,255,255,0.85); }

/* 약관 링크 */
.footer-policy-links {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.82rem;
}
.footer-policy-links a {
    color: rgba(255,255,255,0.5);
    transition: var(--transition);
    padding: 2px 4px;
}
.footer-policy-links a:hover { color: rgba(255,255,255,0.9); }
.fc-privacy { font-weight: 600; color: rgba(255,255,255,0.65) !important; }
.fp-divider { color: rgba(255,255,255,0.2); font-size: 0.7rem; padding: 0 4px; }
.footer-copyright {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.28);
}
.footer-tags { display: flex; gap: 10px; flex-wrap: wrap; }
.footer-tags span { font-size: 0.72rem; color: rgba(255,255,255,0.25); padding: 3px 10px; border: 1px solid rgba(255,255,255,0.08); border-radius: 100px; }

/* Toast */
.toast {
    position: fixed; bottom: 32px; right: 32px;
    background: var(--green-esg); color: #fff;
    padding: 14px 24px; border-radius: var(--radius-md);
    display: flex; align-items: center; gap: 10px;
    font-size: 0.9rem; font-weight: 600;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    transform: translateY(120%); opacity: 0;
    transition: all 0.4s cubic-bezier(0.34,1.56,0.64,1); z-index: 9999;
}
.toast.show { transform: translateY(0); opacity: 1; }

/* ==========================================
   RESPONSIVE
   ========================================== */
@media (max-width: 1024px) {
    .about-grid { grid-template-columns: repeat(2,1fr); }
    .about-vision-layout { grid-template-columns: 1fr; gap: 40px; }
    .about-vision-img img { height: 320px; }
    .tech-layout { grid-template-columns: 1fr; gap: 40px; }
    .cases-grid { grid-template-columns: 1fr; }
    .esg-metrics { grid-template-columns: repeat(2,1fr); gap: 32px; }
    .footer-top { grid-template-columns: 1fr; gap: 40px; }
    .quicknav-grid { grid-template-columns: repeat(2,1fr); }
    .qnav-img-wrap { height: 170px; }
}
@media (max-width: 768px) {
    .section { padding: 72px 0; }
    .hero { grid-template-columns: 1fr; padding: 40px 5% 80px; min-height: auto; }
    .hero-visual { display: none; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .stat-divider { display: none; }
    .hero-actions { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
    .nav-menu {
        position: fixed; top: var(--nav-h); left: 0; right: 0;
        background: rgba(255,255,255,0.97); backdrop-filter: blur(20px);
        flex-direction: column; padding: 24px; gap: 4px;
        border-top: 1px solid var(--border);
        transform: translateY(-120%); opacity: 0; transition: var(--transition);
        z-index: 999; pointer-events: none;
    }
    .nav-menu.open { transform: translateY(0); opacity: 1; pointer-events: all; }
    .nav-link { width: 100%; padding: 12px 16px; border-radius: var(--radius-sm); }
    .nav-cta { margin-left: 0; text-align: center; }
    .hamburger { display: flex; }
    .about-grid { grid-template-columns: 1fr; }
    .about-kpi-row { flex-direction: column; gap: 16px; padding: 20px; }
    .about-kpi-divider { width: 80%; height: 1px; }
    .esg-grid { grid-template-columns: 1fr; }
    .esg-metrics { grid-template-columns: repeat(2,1fr); padding: 32px 20px; }
    .product-tabs { flex-direction: column; }
    .panel-layout { grid-template-columns: 1fr; gap: 28px; padding: 24px; border-radius: var(--radius-lg); }
    .comp-table th, .comp-table td { padding: 12px 14px; font-size: 0.8rem; }
    .comp-table td.feature-name { min-width: 120px; }
    .contact-layout { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .contact-form { padding: 24px; border-radius: var(--radius-lg); }
    .footer-links { grid-template-columns: 1fr 1fr; }
    .footer-corp-info { font-size: 0.72rem; gap: 4px 0; }
    .fc-divider { padding: 0 5px; }
    .quicknav-grid { grid-template-columns: 1fr; }
    .qnav-img-wrap { height: 180px; }
    .page-hero { padding: 48px 0 40px; }
    /* 모바일에서 lang-toggle 항상 보이게 */
    .lang-toggle { display: flex; }
    /* 네비 컨테이너 패딩 축소 */
    .nav-container { padding: 0 16px; }
    /* 히어로 섹션 패딩 */
    .hero { padding: 36px 4% 72px; }
    /* 섹션 패딩 축소 */
    .section { padding: 64px 0; }
    /* 폰트 크기 조정 */
    .section-title { font-size: 1.5rem; }
    .section-desc { font-size: 0.92rem; }
    /* 페이지 히어로 */
    .page-hero h1 { font-size: 2rem; }
    /* 탭 버튼 */
    .prod-tab { min-width: unset; padding: 14px 18px; }
    /* 스펙 그리드 */
    .panel-spec-grid { grid-template-columns: 1fr 1fr; }
    /* cases */
    .case-stats { grid-template-columns: repeat(3,1fr); }
    /* esg metrics */
    .esg-metrics { gap: 20px; }
    /* footer */
    .footer-top { padding-bottom: 32px; }
    .footer-brand p { font-size: 0.8rem; }
}
@media (max-width: 480px) {
    .esg-metrics { grid-template-columns: 1fr 1fr; }
    .footer-links { grid-template-columns: 1fr; }
    /* lang-toggle 항상 표시 — 절대 숨기지 않음 */
    .lang-toggle { display: flex; padding: 3px 5px; }
    .lang-btn { font-size: 0.68rem; padding: 4px 7px; min-width: 28px; }
    .nav-container { padding: 0 14px; }
    /* 로고 크기 모바일 조정 */
    .logo-img { height: 56px; }
    .footer-logo-img { height: 50px; }
    .contact-logo-img { height: 44px; }
    .section { padding: 56px 0; }
    .hero { padding: 32px 4% 64px; }
    .hero-title { font-size: 1.7rem; }
    .hero-desc { font-size: 0.92rem; }
    .hero-badge { font-size: 0.72rem; padding: 6px 14px; }
    .hero-stats { padding: 16px 14px; gap: 8px; }
    .stat-num { font-size: 1.5rem; }
    .page-hero h1 { font-size: 1.8rem; }
    .page-hero p { font-size: 0.9rem; }
    .section-title { font-size: 1.4rem; }
    .panel-layout { padding: 18px; }
    .esg-metrics { padding: 24px 16px; gap: 16px; }
    .metric-circle { width: 90px; height: 90px; }
    .metric-num { font-size: 0.95rem; }
    .comp-table th, .comp-table td { padding: 10px 10px; font-size: 0.75rem; }
    .comp-table td.feature-name { min-width: 100px; font-size: 0.75rem; }
    .case-stats { grid-template-columns: 1fr; gap: 8px; }
    .contact-form { padding: 20px 16px; }
    .product-select-group { flex-direction: column; }
    .quicknav-grid { gap: 14px; }
    .qnav-card { }
    .qnav-img-wrap { height: 160px; }
    .qnav-body { padding: 18px 18px 20px; gap: 12px; }
    .qnav-icon { width: 40px; height: 40px; font-size: 0.95rem; }
    .qnav-text h3 { font-size: 0.93rem; }
    .qnav-text p { font-size: 0.79rem; }
    .footer-top { gap: 28px; }
}

/* ========================================
   TECH ENTRY GRID (Technology 개요 페이지)
   ======================================== */
.tech-entry-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-top: 8px;
}
.tech-entry-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: var(--bg-white);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}
.tech-entry-card::before {
    content: '';
    position: absolute; top: 0; left: 0;
    width: 4px; height: 100%;
    background: var(--primary);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.3s ease;
}
.tech-entry-card:hover::before { transform: scaleY(1); }
.tech-entry-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}
.tech-entry-icon {
    width: 56px; height: 56px; border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
    color: #fff; font-size: 1.3rem;
}
.tech-entry-body { flex: 1; }
.tech-entry-body h3 {
    font-size: 1.15rem; font-weight: 700;
    color: var(--text-dark); margin-bottom: 10px;
}
.tech-entry-body p {
    font-size: 0.9rem; color: var(--text-mid); line-height: 1.6;
    margin-bottom: 16px;
}
.tech-entry-arrow {
    display: inline-flex; align-items: center; justify-content: center;
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--bg-light);
    color: var(--primary); font-size: 0.9rem;
    transition: var(--transition);
}
.tech-entry-card:hover .tech-entry-arrow {
    background: var(--primary); color: #fff;
    transform: translateX(4px);
}

/* Products 개요 페이지 진입 그리드 */
.products-entry-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 8px;
}

/* Products 개요 페이지 진입 그리드 */
.prod-entry-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 8px;
}
.prod-entry-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px 28px;
    border-radius: var(--radius-lg);
    background: var(--bg-white);
    border: 2px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    box-shadow: var(--shadow-sm);
}
.prod-entry-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}
.prod-entry-code {
    width: 56px; height: 56px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5rem; font-weight: 900;
    color: #fff; flex-shrink: 0;
}
.prod-entry-s { border-color: var(--primary); }
.prod-entry-s .prod-entry-code { background: var(--primary); }
.prod-entry-s:hover { background: rgba(10,92,155,0.04); }
.prod-entry-t { border-color: var(--accent); }
.prod-entry-t .prod-entry-code { background: var(--accent); }
.prod-entry-t:hover { background: rgba(245,166,35,0.04); }
.prod-entry-m { border-color: var(--green-esg); }
.prod-entry-m .prod-entry-code { background: var(--green-esg); }
.prod-entry-m:hover { background: rgba(39,174,96,0.04); }
.prod-entry-i { border-color: #9b59b6; }
.prod-entry-i .prod-entry-code { background: #9b59b6; }
.prod-entry-i:hover { background: rgba(155,89,182,0.04); }
.prod-entry-body { flex: 1; }
.prod-entry-body h3 {
    font-size: 1.05rem; font-weight: 700;
    color: var(--text-dark); margin-bottom: 6px;
}
.prod-entry-body p {
    font-size: 0.85rem; color: var(--text-mid); line-height: 1.5;
}
.prod-entry-arrow {
    color: var(--text-light); font-size: 1rem;
    transition: var(--transition);
}
.prod-entry-card:hover .prod-entry-arrow {
    color: var(--primary); transform: translateX(4px);
}
@media (max-width: 768px) {
    .prod-entry-grid { grid-template-columns: 1fr; }
}

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

/* ========================================
   PRODUCT SOLO PAGE LAYOUT
   (개별 제품 단독 페이지 — prod-s/t/m/i)
   ======================================== */
.prod-solo-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: start;
}
.prod-solo-img .panel-img-wrap {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    aspect-ratio: 4/3;
}
.prod-solo-img .panel-img-wrap img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.5s ease;
}
.prod-solo-img .panel-img-wrap:hover img {
    transform: scale(1.04);
}
.prod-solo-title {
    font-size: clamp(1.4rem, 3vw, 2rem);
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 16px;
    line-height: 1.3;
}
.prod-solo-info .panel-category-badge {
    margin-bottom: 16px;
}
.prod-solo-info .panel-desc {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-mid);
    margin-bottom: 24px;
}
.prod-solo-info .panel-features {
    margin-bottom: 24px;
}
.prod-solo-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-top: 32px;
}
.prod-solo-actions .btn {
    flex: 0 0 auto;
}

/* ========================================
   TECH PAGE BOTTOM NAV
   ======================================== */
.tech-page-nav {
    display: flex;
    justify-content: center;
    margin-top: 48px;
    gap: 16px;
}

/* ========================================
   RESPONSIVE: prod-solo
   ======================================== */
@media (max-width: 1024px) {
    .prod-solo-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .prod-solo-img .panel-img-wrap {
        aspect-ratio: 16/9;
    }
}
@media (max-width: 768px) {
    .prod-solo-actions {
        flex-direction: column;
    }
    .prod-solo-actions .btn {
        width: 100%;
        justify-content: center;
    }
    .tech-page-nav {
        flex-direction: column;
        align-items: center;
    }
}