/* ===========================================================
   ㈜영남창호산업 공식 홈페이지 — 공통 스타일
   디자인 톤: 다크 네이비 + 시안 accent, 넓은 여백, 각진 사각 컴포넌트
   =========================================================== */

:root {
  --navy-deep: #071b2b;   /* 다크 섹션 배경 (짙은) */
  --navy-deep2: #0b273b;  /* 다크 섹션 배경 (문의 등) */
  --header-bg: rgba(4, 20, 32, .91);

  --text: #102033;        /* 본문(밝은 배경) */
  --muted: #5b6b7c;       /* 보조 텍스트(밝은 배경) */
  --text-on-dark: #dce8ee;
  --muted-on-dark: #9fb4c4;

  --accent: #27b4d6;      /* 시안 — 메인 CTA */
  --accent-text: #062132; /* 시안 버튼 위 텍스트 */
  --eyebrow: #6bcce3;     /* 다크 배경 위 라벨 */
  --eyebrow-light: #1287a8; /* 밝은 배경 위 라벨 */

  --border: #e1e8f0;
  --border-dark: rgba(255, 255, 255, .16);

  --bg: #f7f9fb;
  --bg-alt: #eaf0f4;
  --white: #ffffff;

  --radius: 0px;
  --chip-radius: 3px;
  --max-width: 1180px;
  --header-h: 84px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", "Malgun Gothic", "Apple SD Gothic Neo", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  /* 한글은 글자 단위가 아니라 어절(띄어쓰기) 단위로만 줄바꿈되도록 */
  word-break: keep-all;
  overflow-wrap: break-word;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
#site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand { display: flex; align-items: center; gap: 14px; }
.brand-icon { height: 42px; width: auto; }
.brand-text { display: flex; flex-direction: column; gap: 3px; }
.brand-name { font-size: 21px; font-weight: 700; color: #fff; letter-spacing: -.01em; }
.brand-sub { font-size: 10.5px; font-weight: 600; color: var(--muted-on-dark); letter-spacing: .12em; }

.main-nav { display: flex; gap: 6px; }
.main-nav a {
  padding: 10px 16px;
  font-size: 17.4px;
  font-weight: 600;
  color: var(--text-on-dark);
  transition: color .15s;
  white-space: nowrap;
}
.main-nav a:hover { color: var(--eyebrow); }
.main-nav a.active { color: var(--accent); }

.lang-toggle {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--border-dark);
  color: var(--text-on-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
}
.lang-toggle:hover { border-color: var(--accent); color: var(--accent); }

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  background: var(--accent);
  color: var(--accent-text) !important;
  font-size: 16.2px;
  font-weight: 700;
  white-space: nowrap;
}
.header-cta:hover { background: #48c3e0; }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border: none; background: none;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: "";
  display: block;
  width: 20px; height: 2px;
  background: #fff;
  margin: 5px auto;
}

/* ---------- Hero (HOME) ---------- */
.hero {
  position: relative;
  background: var(--navy-deep);
  color: #fff;
  overflow: hidden;
}
.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 128px 24px 120px;
  position: relative;
  z-index: 2;
}
.hero-bg-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
}
.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(2,15,25,.96), rgba(4,22,34,.82) 35%, rgba(4,22,34,.2) 70%),
    linear-gradient(rgba(0,0,0,0) 45%, rgba(1,12,20,.44));
}
.hero-eyebrow {
  display: inline-block;
  font-size: 14.4px;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--eyebrow);
  margin-bottom: 22px;
}
.hero h1 {
  font-size: 58px;
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -.03em;
  max-width: 640px;
}
.hero-scroll {
  position: absolute;
  left: 50%; bottom: 34px;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 700; letter-spacing: .18em; color: var(--muted-on-dark);
  z-index: 2;
}
.hero-scroll svg { opacity: .8; }
.hero p.lead {
  margin-top: 20px;
  font-size: 19.2px;
  color: var(--text-on-dark);
  max-width: none;
}
.hero-actions { margin-top: 34px; display: flex; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 17.4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--accent); color: var(--accent-text); }
.btn-primary:hover { background: #48c3e0; box-shadow: 0 10px 20px rgba(39, 180, 214, .3); }
.btn-outline { border-color: rgba(255,255,255,.4); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.08); }
.btn-solid { background: var(--navy-deep); color: #fff; }
.btn-solid:hover { background: #0c2c44; box-shadow: 0 10px 20px rgba(7, 27, 43, .3); }

/* page header (non-home) */
.page-header {
  background: linear-gradient(160deg, var(--navy-deep) 0%, #0c2c44 100%);
  color: #fff;
  padding: 72px 0 58px;
}
.page-header .eyebrow {
  font-size: 14.4px; font-weight: 700; color: var(--eyebrow);
  letter-spacing: .16em; text-transform: uppercase;
}
.page-header h1 { font-size: 43.2px; font-weight: 700; letter-spacing: -.02em; margin-top: 12px; }
.page-header p { margin-top: 14px; color: var(--text-on-dark); max-width: none; font-size: 18px; }

/* ---------- Sections ---------- */
section { padding: 88px 0; }
section.alt { background: var(--bg-alt); }
section.dark { background: var(--navy-deep); color: var(--text-on-dark); }
section.dark .section-head h2 { color: #fff; }
section.dark .section-head p { color: var(--muted-on-dark); }

.section-head { max-width: 680px; margin-bottom: 40px; }
.section-head .eyebrow {
  color: var(--eyebrow-light); font-weight: 700; font-size: 14.4px; letter-spacing: .16em; text-transform: uppercase;
}
section.dark .section-head .eyebrow { color: var(--eyebrow); }
.section-head h2 { font-size: 38.4px; font-weight: 700; letter-spacing: -.02em; margin-top: 10px; color: var(--navy-deep); }
.section-head p { margin-top: 12px; color: var(--muted); font-size: 18px; }

/* ---------- Cards / grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.feature-card { text-align: left; }
.feature-card .num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  background: var(--navy-deep); color: #fff;
  font-weight: 800; font-size: 15.6px; margin-bottom: 18px;
}
.feature-card h3 { font-size: 19.8px; font-weight: 700; color: var(--navy-deep); margin-bottom: 8px; }
.feature-card p { font-size: 16.2px; color: var(--muted); }

.cat-card {
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.cat-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 16px 32px rgba(7, 27, 43, .14);
}
.cat-card .cat-thumb { width: 100%; aspect-ratio: 16/13; overflow: hidden; background: var(--bg-alt); }
.cat-card img {
  width: 100%; height: 100%; object-fit: contain; padding: 28px; box-sizing: border-box;
  transition: transform .35s ease;
}
.cat-card:hover img { transform: scale(1.08); }
.cat-card .cat-body { padding: 20px 22px 24px; }
.cat-card h3 { font-size: 20.4px; font-weight: 700; color: var(--navy-deep); }
.cat-card p { font-size: 16.2px; color: var(--muted); margin-top: 6px; }
.cat-card .cat-count { font-size: 15px; color: var(--eyebrow-light); font-weight: 700; margin-top: 12px; }

/* stat strip */
.stat-strip { display: grid; grid-template-columns: repeat(4,1fr); gap: 1px; background: var(--border-dark); }
.stat-box { text-align: center; padding: 24px 10px; background: rgba(255,255,255,.03); }
.stat-box .val { font-size: 31.2px; font-weight: 700; color: #fff; }
.stat-box .lbl { font-size: 15px; color: var(--muted-on-dark); margin-top: 4px; }

/* badges (agency) */
.badge-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.badge {
  padding: 8px 14px;
  background: var(--bg-alt);
  color: var(--navy-deep);
  font-size: 15.6px;
  font-weight: 600;
  border-radius: var(--chip-radius);
}

/* cert marks (실제 인증마크 이미지) */
.cert-icons { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.cert-mark { width: 30px; height: 30px; object-fit: contain; }

/* ---------- Product list ---------- */
.tabbar {
  display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 32px; flex-wrap: wrap;
}
.tabbar button {
  padding: 12px 22px;
  background: none; border: none; cursor: pointer;
  font-size: 17.4px; font-weight: 700; color: var(--muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tabbar button.active { color: var(--navy-deep); border-color: var(--accent); }

.subtype-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.chip {
  padding: 8px 14px; border-radius: var(--chip-radius); border: 1px solid var(--border);
  background: #fff; font-size: 15.6px; font-weight: 600; color: var(--muted); cursor: pointer;
}
.chip.active { background: var(--navy-deep); color: #fff; border-color: var(--navy-deep); }

.product-list { border-top: 1px solid var(--border); }
.product-row {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 22px 4px;
  border-bottom: 1px solid var(--border);
  transition: background .2s ease, padding-left .2s ease;
}
.product-row:hover { background: var(--bg-alt); padding-left: 16px; }
.product-row .pr-main { flex: 0 0 260px; display: flex; flex-direction: column; gap: 5px; }
.product-row .pr-subtype { font-size: 12.5px; font-weight: 700; color: var(--eyebrow-light); letter-spacing: .06em; text-transform: uppercase; }
.product-row .pr-model { font-size: 18px; font-weight: 700; color: var(--navy-deep); }
.product-row .pr-specs { flex: 1; font-size: 15px; color: var(--muted); }
.product-row .pr-certs { flex: 0 0 auto; }
.product-row .pr-arrow { flex: 0 0 auto; font-size: 20px; color: var(--eyebrow-light); transition: transform .2s ease; }
.product-row:hover .pr-arrow { transform: translateX(6px); }

/* ---------- Product detail ---------- */
.detail-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; flex-wrap: wrap; }
.detail-head h1 { font-size: 31.2px; font-weight: 700; color: var(--navy-deep); }
.detail-head .model-code { font-size: 18px; color: var(--eyebrow-light); font-weight: 700; margin-top: 6px; }
.back-link { font-size: 16.2px; color: var(--eyebrow-light); font-weight: 700; margin-bottom: 20px; display: inline-block; }

.spec-table { width: 100%; border-collapse: collapse; margin-top: 24px; }
.spec-table th, .spec-table td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--border); font-size: 16.8px; }
.spec-table th { width: 170px; background: var(--bg-alt); color: var(--navy-deep); font-weight: 700; white-space: nowrap; }

.detail-grid { grid-template-columns: 1.1fr .9fr; gap: 32px; }
.detail-image { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #fff; }
.detail-image img { width: 100%; }

.energy-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px; border-radius: var(--chip-radius); font-weight: 700; font-size: 15.6px;
  background: var(--navy-deep); color: #fff;
}
.eg-1, .eg-2, .eg-3, .eg-4, .eg-5 { background: var(--navy-deep); }

/* ---------- Tables (performance) ---------- */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 12px 14px; border-bottom: 1px solid var(--border); font-size: 16.2px; text-align: left; }
.data-table th { color: var(--navy-deep); background: var(--bg-alt); font-weight: 700; font-size: 15px; letter-spacing: .03em; text-transform: uppercase; }
.data-table td.num { text-align: right; font-variant-numeric: tabular-nums; }

.bar-row { display: flex; align-items: center; gap: 14px; margin-bottom: 12px; }
.bar-row .bar-label { width: 56px; font-size: 15.6px; font-weight: 700; color: var(--navy-deep); }
.bar-row .bar-track { flex: 1; background: var(--border); height: 18px; }
.bar-row .bar-fill { height: 100%; background: var(--accent); }
.bar-row .bar-val { width: 40px; text-align: right; font-size: 15px; color: var(--muted); font-weight: 700; }

/* ---------- Certification cards ---------- */
.cert-card {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  border: 1px solid var(--border);
  padding: 32px;
  transition: border-color .25s ease, transform .25s ease, box-shadow .25s ease;
}
.cert-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(7, 27, 43, .1);
}
.cert-card-media {
  flex: 0 0 auto;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  width: 100px;
}
.cert-card-media img {
  width: 92px;
  border: 1px solid var(--border);
  box-shadow: 0 2px 10px rgba(7, 27, 43, .1);
  background: #fff;
  transition: transform .3s ease, box-shadow .3s ease;
}
.cert-card-media a:hover img { transform: scale(1.06); box-shadow: 0 6px 16px rgba(7, 27, 43, .22); }
.cert-card-body { flex: 1 1 auto; min-width: 0; }
.cert-card-icon {
  width: 44px; height: 44px; background: var(--bg-alt);
  display: flex; align-items: center; justify-content: center; font-size: 22px;
  margin-bottom: 16px;
  transition: transform .3s ease;
}
.cert-card-icon img { width: 26px; height: 26px; object-fit: contain; }
.cert-card:hover .cert-card-icon { transform: scale(1.1); }
.cert-card h3 { font-size: 21.6px; font-weight: 700; color: var(--navy-deep); }
.cert-card .meta { font-size: 16px; color: var(--muted); margin-top: 10px; }
.cert-card .no { font-size: 16px; color: var(--eyebrow-light); font-weight: 700; margin-top: 10px; }

/* ---------- Timeline ---------- */
.timeline { border-left: 1px solid var(--border); padding-left: 24px; }
.timeline .item { position: relative; padding-bottom: 28px; }
.timeline .item::before {
  content: ""; position: absolute; left: -29px; top: 5px;
  width: 8px; height: 8px; background: var(--accent);
}
.timeline .item .date { font-size: 15px; font-weight: 700; color: var(--eyebrow-light); letter-spacing: .03em; }
.timeline .item .txt { font-size: 17.4px; color: var(--text); margin-top: 4px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; }
.contact-info-list .row { display: flex; gap: 14px; padding: 15px 0; border-bottom: 1px solid var(--border); }
.contact-info-list .row .k { width: 90px; font-weight: 700; color: var(--navy-deep); font-size: 16.8px; }
.contact-info-list .row .v { font-size: 16.8px; color: var(--text); }
.map-box { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); background: var(--bg-alt); min-height: 320px; }
.map-box iframe { width: 100%; height: 100%; min-height: 320px; border: 0; }

/* ---------- Footer ---------- */
footer {
  background: var(--navy-deep2);
  color: var(--muted-on-dark);
  padding: 56px 0 28px;
  margin-top: 0;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
.footer-brand p { font-size: 15.6px; color: var(--muted-on-dark); max-width: 320px; }
footer h4 { color: #fff; font-size: 15.6px; letter-spacing: .04em; text-transform: uppercase; margin-bottom: 16px; }
footer ul li { margin-bottom: 10px; font-size: 16.2px; }
footer ul li a:hover { color: #fff; }
.footer-bottom {
  margin-top: 36px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1);
  font-size: 14.4px; color: #7590a8; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}

/* ---------- Lean home sections ---------- */
.hero-stats-inline {
  display: flex;
  gap: 0;
  margin-top: 44px;
}
.hero-stats-inline .item {
  padding: 24px 32px 0 0;
  margin-right: 32px;
  border-top: 1px solid var(--border-dark);
  padding-top: 20px;
}
.hero-stats-inline .item:first-child { padding-left: 0; }
.hero-stats-inline .item .val { font-size: 22.8px; font-weight: 700; color: #fff; }
.hero-stats-inline .item .lbl { font-size: 14.4px; color: var(--muted-on-dark); margin-top: 3px; }

.numbered-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--border); }
.numbered-row .n-item {
  padding: 30px 28px;
  border-right: 1px solid var(--border);
}
.numbered-row .n-item:last-child { border-right: none; }
.numbered-row .n-item .n-num { font-size: 15px; font-weight: 700; color: var(--eyebrow-light); letter-spacing: .04em; }
.numbered-row .n-item h3 { font-size: 19.2px; font-weight: 700; color: var(--navy-deep); margin-top: 12px; }
.numbered-row .n-item p { font-size: 16.2px; color: var(--muted); margin-top: 8px; }

.lean-products { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.lean-products .p-item {
  display: block;
  padding: 26px 20px 24px 0;
  border-top: 2px solid var(--navy-deep);
  transition: padding-left .25s ease, padding-right .25s ease, background .25s ease;
}
.lean-products .p-item:hover { padding-left: 8px; padding-right: 12px; background: var(--bg-alt); }
.lean-products .p-item .p-eyebrow { font-size: 13.2px; letter-spacing: .1em; color: var(--eyebrow-light); font-weight: 700; text-transform: uppercase; }
.lean-products .p-item h3 { font-size: 22.8px; font-weight: 700; color: var(--navy-deep); margin-top: 10px; }
.lean-products .p-item p { font-size: 16.2px; color: var(--muted); margin-top: 8px; }
.lean-products .p-item .p-link { display: inline-block; margin-top: 16px; font-size: 15.6px; font-weight: 700; color: var(--eyebrow-light); transition: transform .2s ease; }
.lean-products .p-item:hover .p-link { transform: translateX(6px); }

.check-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 28px; }
.check-list li { display: flex; gap: 10px; font-size: 17.4px; }
.check-list li::before { content: "—"; color: var(--accent); font-weight: 800; flex-shrink: 0; }
section.dark .check-list li { color: var(--text-on-dark); }

.cta-strip {
  background: var(--navy-deep);
  color: #fff;
  border-radius: var(--radius);
  padding: 44px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-strip h3 { font-size: 25.2px; font-weight: 700; }
.cta-strip p { font-size: 16.2px; color: var(--muted-on-dark); margin-top: 8px; }

@media (max-width: 720px) {
  .numbered-row { grid-template-columns: 1fr; }
  .numbered-row .n-item { border-right: none; border-bottom: 1px solid var(--border); }
  .lean-products { grid-template-columns: 1fr; }
  .check-list { grid-template-columns: 1fr; }
}

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-40 { margin-top: 40px; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* 글자 크기가 커져 6개 메뉴가 좁은 데스크톱 폭에서 빡빡해지므로,
   본문 레이아웃 기준(720px)보다 넉넉하게 900px에서 먼저 햄버거로 전환한다 */
@media (max-width: 900px) {
  .main-nav { position: fixed; top: var(--header-h); left: 0; right: 0; background: var(--navy-deep2);
    flex-direction: column; padding: 8px 16px 16px;
    display: none; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 8px; }
  .nav-toggle { display: block; }
  .header-cta { display: none; }
}

@media (max-width: 720px) {
  .hero h1 { font-size: 38.4px; }
  .page-header h1 { font-size: 33.6px; }
  .grid-3, .grid-4, .grid-2, .detail-grid { grid-template-columns: 1fr; }
  .product-row { flex-wrap: wrap; gap: 8px 24px; }
  .product-row .pr-main { flex: 1 1 100%; }
  .product-row .pr-arrow { display: none; }
  .stat-strip { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .hero-inner { padding: 64px 24px 56px; }
  .detail-head { flex-direction: column; }
}