/* ============================================================
   C&S TOOL - products 공통 스타일
   ============================================================ */
:root {
  --red: #D8222A; --red-dark: #A01820; --red-glow: rgba(216,34,42,0.25);
  --gray: #8A8A8A; --gray-light: #C8C8C8; --silver: #E8E8E8;
  --dark: #0F0F0F; --dark2: #181818; --dark3: #222222; --dark4: #2C2C2C;
  --white: #FFFFFF;
  --font-en: 'Bebas Neue', 'Barlow Condensed', sans-serif;
  --font-ko: 'Noto Sans KR', sans-serif;
  --nav-h: 80px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--dark); color: var(--white); font-family: var(--font-ko); font-size: 15px; line-height: 1.6; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }

/* ── HEADER ── */
header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
  background: rgba(10,10,10,0.95); backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(216,34,42,0.3);
  height: var(--nav-h); display: flex; align-items: center;
}
.header-inner { max-width: 1380px; margin: 0 auto; padding: 0 40px; width: 100%; display: flex; align-items: center; gap: 60px; }
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-icon { width: 48px; height: 48px; background: var(--red); border-radius: 8px; display: flex; align-items: center; justify-content: center; font-family: var(--font-en); font-size: 16px; font-weight: 900; color: white; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text .brand { font-family: var(--font-en); font-size: 20px; letter-spacing: 2px; }
.logo-text .sub { font-size: 10px; color: var(--gray); letter-spacing: 3px; }

nav { flex: 1; }
nav ul { list-style: none; display: flex; }
nav ul li { position: relative; }
nav ul li > a { display: block; padding: 0 20px; height: var(--nav-h); line-height: var(--nav-h); font-size: 14px; font-weight: 500; color: var(--gray-light); transition: color 0.2s; white-space: nowrap; }
nav ul li > a:hover, nav ul li.active > a { color: var(--red); }
nav ul li > a::after { content: ''; position: absolute; bottom: 0; left: 20px; right: 20px; height: 2px; background: var(--red); transform: scaleX(0); transition: transform 0.25s ease; }
nav ul li:hover > a::after, nav ul li.active > a::after { transform: scaleX(1); }
.dropdown { position: absolute; top: 100%; left: 0; background: var(--dark2); border: 1px solid var(--dark4); border-top: 2px solid var(--red); min-width: 180px; padding: 8px 0; opacity: 0; visibility: hidden; transform: translateY(-8px); transition: all 0.22s ease; box-shadow: 0 16px 40px rgba(0,0,0,0.6); }
nav ul li:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown li a { display: block; padding: 10px 20px; font-size: 13px; color: var(--gray); height: auto; line-height: 1.4; transition: all 0.2s; }
.dropdown li a:hover { color: white; background: rgba(216,34,42,0.1); padding-left: 28px; }
.dropdown li a::after { display: none; }
.header-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.btn-quote { background: var(--red); color: white; padding: 9px 22px; border-radius: 4px; font-size: 13px; font-weight: 700; transition: background 0.2s; }
.btn-quote:hover { background: var(--red-dark); }
.btn-login { border: 1px solid var(--dark4); color: var(--gray); padding: 9px 18px; border-radius: 4px; font-size: 13px; transition: all 0.2s; }
.btn-login:hover { border-color: var(--gray); color: white; }

/* ── PAGE HERO ── */
.page-hero { padding: calc(var(--nav-h) + 60px) 0 60px; background: linear-gradient(135deg, var(--dark2) 0%, var(--dark) 100%); border-bottom: 1px solid var(--dark4); position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; right: 0; top: 0; bottom: 0; width: 40%; background: radial-gradient(ellipse at right, rgba(216,34,42,0.08), transparent 70%); }
.page-hero-inner { max-width: 1380px; margin: 0 auto; padding: 0 40px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 12px; color: var(--gray); margin-bottom: 20px; }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb span { color: var(--dark4); }
.page-tag { font-family: 'Barlow Condensed', sans-serif; font-size: 11px; letter-spacing: 4px; color: var(--red); text-transform: uppercase; margin-bottom: 12px; display: flex; align-items: center; gap: 12px; }
.page-tag::before { content: ''; width: 24px; height: 2px; background: var(--red); }
.page-title { font-family: 'Bebas Neue', sans-serif; font-size: clamp(40px, 5vw, 72px); line-height: 1; margin-bottom: 12px; }
.page-desc { color: var(--gray); font-size: 14px; font-weight: 300; }

/* ── LAYOUT ── */
.page-body { max-width: 1380px; margin: 0 auto; padding: 60px 40px; }
.page-layout { display: grid; grid-template-columns: 240px 1fr; gap: 40px; align-items: start; }

/* ── SIDEBAR ── */
.sidebar { position: sticky; top: calc(var(--nav-h) + 24px); background: var(--dark3); border: 1px solid var(--dark4); }
.sidebar-title { padding: 18px 24px; border-bottom: 1px solid var(--dark4); font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--gray); font-family: 'Barlow Condensed', sans-serif; }
.sidebar-menu { list-style: none; }
.sidebar-menu li a { display: block; padding: 14px 24px; font-size: 13px; color: var(--gray); border-bottom: 1px solid rgba(255,255,255,0.04); transition: all 0.2s; }
.sidebar-menu li a:hover, .sidebar-menu li.active a { color: white; background: rgba(216,34,42,0.08); border-left: 3px solid var(--red); padding-left: 21px; }

/* ── PRODUCT GRID ── */
.prod-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 2px; }
.prod-card { background: var(--dark3); padding: 28px 24px; display: flex; flex-direction: column; gap: 10px; transition: background 0.3s; border: 1px solid transparent; }
.prod-card:hover { background: var(--dark4); border-color: var(--dark4); }
.prod-card.is-new { border-top: 2px solid var(--red); }
.prod-card-top { display: flex; justify-content: space-between; align-items: center; }
.prod-brand { font-family: 'Barlow Condensed', sans-serif; font-size: 12px; letter-spacing: 2px; color: var(--red); text-transform: uppercase; }
.prod-badges { display: flex; gap: 6px; }
.badge-new { background: var(--red); color: white; font-size: 10px; padding: 2px 7px; border-radius: 2px; font-weight: 700; }
.badge-instock { background: rgba(34,197,94,0.15); color: #22c55e; font-size: 10px; padding: 2px 7px; border-radius: 2px; }
.badge-stock { background: rgba(255,255,255,0.08); color: var(--gray); font-size: 10px; padding: 2px 7px; border-radius: 2px; }
.prod-code { font-family: 'Barlow Condensed', sans-serif; font-size: 13px; color: var(--gray); letter-spacing: 1px; }
.prod-name { font-size: 16px; font-weight: 700; }
.prod-name-en { font-size: 11px; color: var(--gray); letter-spacing: 1px; }
.prod-spec-row { display: flex; gap: 12px; font-size: 12px; }
.spec-label { color: var(--gray); min-width: 44px; flex-shrink: 0; }
.spec-val { color: var(--gray-light); }
.prod-desc { font-size: 12px; color: var(--gray); line-height: 1.7; flex: 1; padding-top: 4px; border-top: 1px solid rgba(255,255,255,0.05); }
.prod-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 11px; color: var(--gray); background: var(--dark4); padding: 3px 8px; border-radius: 2px; }
.prod-actions { display: flex; gap: 8px; padding-top: 8px; border-top: 1px solid rgba(255,255,255,0.05); }
.btn-quote-sm { flex: 1; background: var(--red); color: white; text-align: center; padding: 8px 0; border-radius: 3px; font-size: 12px; font-weight: 700; transition: background 0.2s; }
.btn-quote-sm:hover { background: var(--red-dark); }
.btn-inquiry-sm { flex: 1; border: 1px solid var(--dark4); color: var(--gray); text-align: center; padding: 8px 0; border-radius: 3px; font-size: 12px; transition: all 0.2s; }
.btn-inquiry-sm:hover { border-color: var(--gray); color: white; }

/* ── SECTION HEADER ── */
.section-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid var(--dark4); }
.section-header h2 { font-family: 'Bebas Neue', sans-serif; font-size: 32px; }
.section-header p { font-size: 13px; color: var(--gray); margin-top: 6px; }
.prod-count { font-size: 12px; color: var(--gray); }
.prod-count strong { color: var(--red); font-size: 20px; font-family: 'Bebas Neue', sans-serif; }

/* ── EMPTY STATE ── */
.empty-state { text-align: center; padding: 80px 40px; color: var(--gray); }
.empty-state .icon { font-size: 48px; margin-bottom: 16px; }
.empty-state p { font-size: 14px; }

/* ── CATEGORY CARDS (index) ── */
.cat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; }
.cat-card { background: var(--dark3); padding: 48px 40px; display: flex; flex-direction: column; gap: 16px; transition: background 0.3s; cursor: pointer; position: relative; overflow: hidden; }
.cat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--red); transform: scaleX(0); transform-origin: left; transition: transform 0.35s ease; }
.cat-card:hover { background: var(--dark4); }
.cat-card:hover::before { transform: scaleX(1); }
.cat-icon { font-size: 36px; }
.cat-name { font-size: 22px; font-weight: 700; }
.cat-name-en { font-family: 'Barlow Condensed', sans-serif; font-size: 12px; letter-spacing: 3px; color: var(--gray); text-transform: uppercase; }
.cat-desc { font-size: 13px; color: var(--gray); line-height: 1.7; }
.cat-sub-list { display: flex; flex-wrap: wrap; gap: 8px; }
.cat-sub-tag { font-size: 12px; border: 1px solid var(--dark4); color: var(--gray); padding: 4px 12px; border-radius: 2px; transition: all 0.2s; }
.cat-card:hover .cat-sub-tag { border-color: rgba(216,34,42,0.4); color: var(--gray-light); }
.cat-arrow { font-size: 13px; color: var(--red); margin-top: auto; display: flex; align-items: center; gap: 8px; transition: gap 0.2s; }
.cat-card:hover .cat-arrow { gap: 16px; }

/* ── SEARCH PAGE ── */
.search-bar-wrap { margin-bottom: 40px; }
.search-bar { display: flex; gap: 0; }
.search-bar input { flex: 1; background: var(--dark3); border: 1px solid var(--dark4); border-right: none; color: white; padding: 16px 24px; font-size: 15px; font-family: var(--font-ko); outline: none; transition: border-color 0.2s; }
.search-bar input:focus { border-color: var(--red); }
.search-bar input::placeholder { color: var(--gray); }
.search-bar button { background: var(--red); color: white; border: none; padding: 0 32px; font-size: 14px; font-weight: 700; cursor: pointer; transition: background 0.2s; font-family: var(--font-ko); letter-spacing: 1px; }
.search-bar button:hover { background: var(--red-dark); }
.search-filters { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.filter-btn { border: 1px solid var(--dark4); color: var(--gray); padding: 6px 16px; border-radius: 2px; font-size: 12px; cursor: pointer; background: none; font-family: var(--font-ko); transition: all 0.2s; }
.filter-btn:hover, .filter-btn.active { border-color: var(--red); color: var(--red); }
.search-result-info { font-size: 13px; color: var(--gray); margin-bottom: 24px; }
.search-result-info strong { color: white; }

/* ── FOOTER ── */
footer { background: var(--dark); border-top: 1px solid var(--dark4); padding: 40px 0; }
.footer-simple { max-width: 1380px; margin: 0 auto; padding: 0 40px; display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: var(--gray); }
.footer-simple a { color: var(--gray); }
.footer-simple a:hover { color: white; }

/* ── CUSTOM FORM ── */
.custom-form-wrap { background: var(--dark3); border: 1px solid var(--dark4); padding: 40px; }
.form-group { margin-bottom: 24px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 8px; color: var(--gray-light); }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; background: var(--dark2); border: 1px solid var(--dark4); color: white;
  padding: 12px 16px; font-size: 14px; font-family: var(--font-ko); outline: none; border-radius: 2px; transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--red); }
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select option { background: var(--dark3); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.btn-submit { background: var(--red); color: white; border: none; padding: 16px 48px; font-size: 15px; font-weight: 700; cursor: pointer; font-family: var(--font-ko); letter-spacing: 1px; transition: background 0.2s; border-radius: 2px; }
.btn-submit:hover { background: var(--red-dark); }

@media (max-width: 960px) {
  .page-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .cat-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  :root { --nav-h: 64px; }
  nav ul { display: none; }
  .header-inner { gap: 16px; padding: 0 20px; }
  .page-hero-inner, .page-body { padding-left: 20px; padding-right: 20px; }
  .prod-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}