/*
Theme Name: JHF Corrosion Command
Theme URI: https://6.jhf2017.com/
Author: Codex for JHF
Description: B2B inquiry website for PP and PPH corrosion-resistant equipment, built as a process-driven selection center.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 7.0
Requires PHP: 7.4
Text Domain: jhf6
*/

:root {
  --ink: #101715;
  --ink-2: #26332f;
  --muted: #65716c;
  --paper: #f4f2eb;
  --surface: #ffffff;
  --line: #d9ded7;
  --line-strong: #b9c2ba;
  --pine: #0a4b39;
  --steel: #2c5365;
  --blue: #dceaf0;
  --amber: #d57924;
  --amber-2: #fff0df;
  --red: #b43d32;
  --shadow: 0 16px 44px rgba(21, 35, 30, .12);
  --wrap: 1180px;
  --radius: 6px;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --mono: "SFMono-Regular", "Consolas", "Roboto Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.72;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; }

.wrap { width: min(var(--wrap), calc(100vw - 40px)); margin: 0 auto; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(16, 23, 21, .12);
  background: rgba(244, 242, 235, .93);
  backdrop-filter: blur(18px);
}
.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  min-height: 74px;
}
.brand {
  display: grid;
  grid-template-columns: 44px auto;
  gap: 12px;
  align-items: center;
  font-weight: 800;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 2px solid var(--ink);
  background: var(--amber);
  color: #fff;
  font-family: var(--mono);
  letter-spacing: 0;
}
.brand span { display: block; color: var(--muted); font-size: 12px; font-weight: 700; }
.main-nav { display: flex; justify-content: center; gap: 4px; }
.main-nav a {
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 700;
}
.main-nav a:hover { background: #e8ebe5; }
.header-cta {
  padding: 11px 15px;
  border: 1px solid var(--pine);
  border-radius: var(--radius);
  background: var(--pine);
  color: #fff;
  font-weight: 800;
}

.btn, .wp-block-button__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 16px;
  border: 1px solid var(--pine);
  border-radius: var(--radius);
  background: var(--pine);
  color: #fff;
  font-weight: 800;
}
.btn.secondary { background: transparent; color: var(--pine); }
.btn.amber { border-color: var(--amber); background: var(--amber); }
.kicker {
  margin: 0 0 12px;
  color: var(--amber);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.section {
  padding: 72px 0;
  border-top: 1px solid var(--line);
}
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 420px);
  gap: 32px;
  align-items: end;
  margin-bottom: 28px;
}
h1, h2, h3, h4 { margin: 0; line-height: 1.15; letter-spacing: 0; }
h1 { font-size: clamp(42px, 7vw, 86px); max-width: 920px; }
h2 { font-size: clamp(30px, 4vw, 54px); }
h3 { font-size: 22px; }
p { margin: 0 0 1em; }
.lead { color: var(--ink-2); font-size: 19px; }
.muted { color: var(--muted); }

.hero {
  min-height: calc(100vh - 74px);
  display: grid;
  align-items: stretch;
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(420px, .95fr);
  gap: 30px;
  align-items: stretch;
  padding: 34px 0 42px;
}
.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 560px;
}
.hero-copy h1 strong {
  color: var(--pine);
  font-weight: 900;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 24px 0 28px; }
.spec-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 650px;
  border: 1px solid var(--line-strong);
  background: var(--line-strong);
}
.spec-strip span {
  display: block;
  padding: 13px;
  background: rgba(255,255,255,.55);
  color: var(--muted);
  font-size: 12px;
}
.spec-strip b {
  display: block;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 19px;
}
.hero-board {
  align-self: stretch;
  display: grid;
  grid-template-rows: 1fr auto;
  border: 1px solid var(--ink);
  background: var(--surface);
  box-shadow: var(--shadow);
}
.hero-media {
  position: relative;
  min-height: 390px;
  overflow: hidden;
  background: var(--ink);
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-media:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(16, 23, 21, .04), rgba(16, 23, 21, .58));
}
.readout {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,.32);
}
.readout div {
  padding: 12px;
  background: rgba(10, 75, 57, .84);
  color: #fff;
}
.readout b { display: block; font-family: var(--mono); font-size: 18px; }
.readout span { font-size: 12px; opacity: .86; }
.decision-panel {
  padding: 22px;
  background:
    linear-gradient(90deg, rgba(44,83,101,.08) 1px, transparent 1px),
    linear-gradient(rgba(44,83,101,.08) 1px, transparent 1px),
    #fff;
  background-size: 24px 24px;
}
.decision-panel ol {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.decision-panel li {
  padding: 12px;
  border-left: 3px solid var(--amber);
  background: rgba(244,242,235,.88);
  font-size: 13px;
}
.decision-panel b { display: block; color: var(--pine); }

.index-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}
.index-item {
  min-height: 210px;
  padding: 22px;
  background: var(--surface);
}
.index-item:nth-child(2n) { background: #f9fbf6; }
.index-item small { color: var(--amber); font-family: var(--mono); font-weight: 800; }
.index-item h3 { margin: 24px 0 10px; }

.product-rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.product-card {
  display: grid;
  grid-template-rows: 230px 1fr;
  border: 1px solid var(--line);
  background: var(--surface);
}
.product-card .thumb { background: var(--blue); overflow: hidden; }
.product-card img { width: 100%; height: 100%; object-fit: cover; }
.product-card .body { padding: 20px; }
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0;
}
.chip {
  display: inline-flex;
  padding: 4px 8px;
  border: 1px solid var(--line);
  background: #f7f7f2;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}
.metric {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  font-size: 13px;
}
.metric b { color: var(--pine); }

.matrix {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  border: 1px solid var(--ink);
  background: var(--surface);
}
.matrix-aside {
  padding: 30px;
  background: var(--pine);
  color: #fff;
}
.matrix-table { display: grid; }
.matrix-row {
  display: grid;
  grid-template-columns: 180px 1fr 140px;
  gap: 0;
  border-bottom: 1px solid var(--line);
}
.matrix-row:last-child { border-bottom: 0; }
.matrix-row > * { padding: 16px; }
.matrix-row b { color: var(--pine); }
.matrix-row span { color: var(--muted); }

.proof-band {
  background: var(--ink);
  color: #fff;
}
.proof-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 34px;
  align-items: center;
}
.proof-photo {
  min-height: 420px;
  border: 1px solid rgba(255,255,255,.18);
  overflow: hidden;
}
.proof-photo img { width: 100%; height: 100%; object-fit: cover; }
.proof-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255,255,255,.2);
}
.proof-list div { padding: 20px; background: #16221f; }
.proof-list b { display: block; margin-bottom: 8px; color: var(--amber); font-family: var(--mono); }

.solution-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}
.solution-card {
  display: grid;
  grid-template-columns: 160px 1fr;
  border: 1px solid var(--line);
  background: var(--surface);
}
.solution-card .code {
  display: grid;
  place-items: center;
  padding: 20px;
  background: var(--blue);
  color: var(--steel);
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 900;
}
.solution-card .body { padding: 22px; }

.inquiry-band {
  padding: 64px 0;
  background: var(--amber-2);
  border-top: 1px solid #edc89f;
}
.inquiry-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 28px;
}
.inquiry-form {
  display: grid;
  gap: 12px;
  padding: 24px;
  border: 1px solid var(--ink);
  background: #fff;
  box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.inquiry-form label { display: grid; gap: 6px; color: var(--ink-2); font-size: 13px; font-weight: 800; }
.inquiry-form input, .inquiry-form textarea, .inquiry-form select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 12px;
  background: #fff;
}
.inquiry-form textarea { min-height: 126px; resize: vertical; }

.page-hero {
  padding: 68px 0 46px;
  border-bottom: 1px solid var(--line);
}
.archive-grid {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 28px;
  padding: 44px 0 72px;
}
.filter-panel {
  align-self: start;
  position: sticky;
  top: 96px;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--surface);
}
.filter-panel a {
  display: block;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}
.filter-panel a:hover { color: var(--pine); }
.archive-list { display: grid; gap: 18px; }
.single-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 34px;
  padding: 48px 0 72px;
}
.single-main, .single-side {
  border: 1px solid var(--line);
  background: var(--surface);
}
.single-main .single-image { max-height: 520px; overflow: hidden; background: var(--blue); }
.single-main .single-image img { width: 100%; height: 100%; object-fit: cover; }
.single-body { padding: 30px; }
.spec-table { margin-top: 24px; border-top: 1px solid var(--line); }
.spec-table .metric { grid-template-columns: 160px 1fr; }
.single-side { align-self: start; position: sticky; top: 96px; padding: 22px; }

.site-footer {
  padding: 38px 0;
  background: #101715;
  color: rgba(255,255,255,.82);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
}
.footer-grid b { color: #fff; }
.footer-links { display: flex; flex-wrap: wrap; gap: 14px; }

@media (max-width: 920px) {
  .header-inner { grid-template-columns: 1fr; gap: 10px; padding: 12px 0; }
  .main-nav { justify-content: flex-start; overflow-x: auto; }
  .header-cta { justify-self: start; }
  .hero-grid, .section-head, .matrix, .proof-grid, .inquiry-grid, .archive-grid, .single-layout { grid-template-columns: 1fr; }
  .hero-copy { min-height: auto; padding-top: 28px; }
  .hero-board { grid-row: 1; }
  .product-rail, .index-list, .solution-list { grid-template-columns: 1fr; }
  .decision-panel ol, .readout, .spec-strip, .proof-list { grid-template-columns: 1fr; }
  .matrix-row { grid-template-columns: 1fr; }
  .solution-card { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .filter-panel, .single-side { position: static; }
}

@media (max-width: 560px) {
  .wrap { width: min(100vw - 24px, var(--wrap)); }
  h1 { font-size: 40px; }
  h2 { font-size: 30px; }
  .section { padding: 48px 0; }
  .hero-media { min-height: 300px; }
  .product-card { grid-template-rows: 190px 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}