/* Hearthline Commercial Supply — stainless + flame catalog system */
@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700;800&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --char: #14171a;
  --steel: #2a3038;
  --plate: #eef1f4;
  --fog: #f7f8fa;
  --line: #d5dce3;
  --flame: #ff5a1f;
  --flame-deep: #e04510;
  --cool: #3d7ea6;
  --mute: #5c6670;
  --max: 1180px;
  --nav-h: 76px;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Archivo', system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--char);
  background: var(--fog);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button, input, textarea, select { font: inherit; }

.container { width: min(100% - 2.5rem, var(--max)); margin-inline: auto; }
.container-wide { width: min(100% - 1.5rem, 1320px); margin-inline: auto; }

.display {
  font-family: var(--font-display); font-weight: 700; line-height: 0.98;
  letter-spacing: -0.03em; text-wrap: balance;
}
.display-xl { font-size: clamp(2.8rem, 7.5vw, 5.4rem); }
.display-lg { font-size: clamp(2.1rem, 4.5vw, 3.4rem); }
.display-md { font-size: clamp(1.6rem, 3vw, 2.35rem); }
.lede { font-size: 1.08rem; color: var(--mute); max-width: 36rem; font-weight: 400; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--flame-deep); margin-bottom: 0.85rem;
}
.eyebrow::before {
  content: ''; width: 10px; height: 10px;
  background: var(--flame); clip-path: polygon(50% 0, 100% 100%, 0 100%);
  animation: flicker 1.8s ease-in-out infinite;
}
@keyframes flicker {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(1.25); opacity: 0.75; }
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.45rem;
  padding: 0.9rem 1.35rem; font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase; border: 2px solid transparent;
  cursor: pointer; transition: transform 0.3s var(--ease), background 0.25s, color 0.25s, border-color 0.25s;
}
.btn:hover { transform: translateY(-2px); }
.btn-flame { background: var(--flame); color: #fff; }
.btn-flame:hover { background: var(--flame-deep); }
.btn-ink { background: var(--char); color: #fff; }
.btn-ink:hover { background: var(--steel); }
.btn-ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,0.45); }
.btn-ghost:hover { background: #fff; color: var(--char); }
.btn-line { background: transparent; color: var(--char); border-color: var(--char); }
.btn-line:hover { background: var(--char); color: #fff; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(247,248,250,0.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-top {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; padding: 0.45rem 0; font-size: 0.78rem; color: var(--mute);
  border-bottom: 1px solid var(--line);
}
.header-top a { color: var(--cool); font-weight: 600; }
.header-main {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: var(--nav-h);
}
.brand { display: inline-flex; align-items: center; gap: 0.7rem; }
.brand-mark {
  position: relative; width: 48px; height: 48px; flex-shrink: 0;
}
.brand-mark img { width: 100%; height: 100%; object-fit: contain; }
.brand-mark::after {
  content: ''; position: absolute; inset: -3px;
  border: 1px solid rgba(255,90,31,0.35);
  clip-path: polygon(12% 0, 100% 0, 100% 88%, 88% 100%, 0 100%, 0 12%);
  animation: markPulse 3s var(--ease) infinite;
}
@keyframes markPulse {
  0%, 100% { opacity: 0.35; transform: scale(1); }
  50% { opacity: 0.85; transform: scale(1.03); }
}
.brand-text strong {
  display: block; font-family: var(--font-display); font-size: 1.2rem; font-weight: 700;
}
.brand-text small {
  display: block; font-size: 0.65rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--mute); font-weight: 600;
}
.nav { display: flex; align-items: center; gap: 0.15rem; flex-wrap: wrap; }
.nav a {
  padding: 0.45rem 0.6rem; font-size: 0.82rem; font-weight: 600;
  color: var(--steel); transition: color 0.2s;
}
.nav a:hover, .nav a.is-active { color: var(--flame-deep); }
.nav-cta { margin-left: 0.35rem; }
.nav-toggle {
  display: none; width: 44px; height: 44px; border: 2px solid var(--char);
  background: transparent; cursor: pointer; flex-direction: column;
  align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--char); }

/* Hero — split catalog */
.hero {
  display: grid; grid-template-columns: 1.05fr 0.95fr;
  min-height: calc(100vh - 110px); background: var(--char); color: #fff;
  overflow: hidden;
}
.hero-copy {
  padding: clamp(2rem, 5vw, 4rem); display: flex; flex-direction: column; justify-content: center;
  position: relative;
}
.hero-copy::before {
  content: ''; position: absolute; left: 0; top: 18%; bottom: 18%; width: 4px;
  background: linear-gradient(var(--flame), transparent);
  transform: scaleY(0); transform-origin: top;
  transition: transform 0.9s var(--ease);
}
html.js .hero.is-live .hero-copy::before,
html:not(.js) .hero-copy::before { transform: scaleY(1); }
.hero h1 { margin: 0.4rem 0 1.1rem; }
.hero h1 .line {
  display: block; overflow: hidden;
}
.hero h1 .line i {
  display: inline-block; font-style: normal;
  transform: translateY(110%);
  transition: transform 0.8s var(--ease);
}
html.js .hero.is-live h1 .line i,
html:not(.js) .hero h1 .line i { transform: none; }
.hero h1 .line:nth-child(1) i { transition-delay: 0.08s; }
.hero h1 .line:nth-child(2) i { transition-delay: 0.18s; }
.hero h1 .line:nth-child(3) i { transition-delay: 0.28s; }
.hero .lede { color: rgba(255,255,255,0.72); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.6rem; }
.hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
  margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.15);
}
.hero-stats strong {
  display: block; font-family: var(--font-display); font-size: 1.7rem; color: var(--flame);
}
.hero-stats span { font-size: 0.78rem; color: rgba(255,255,255,0.6); }
.hero-media { position: relative; overflow: hidden; }
.hero-media img {
  width: 100%; height: 100%; object-fit: cover; min-height: 480px;
  transform: scale(1.12); filter: brightness(0.78) saturate(1.05);
  transition: transform 1.4s var(--ease);
}
html.js .hero.is-live .hero-media img,
html:not(.js) .hero-media img { transform: scale(1); }
.hero-badge {
  position: absolute; left: 1.25rem; bottom: 1.25rem;
  background: rgba(20,23,26,0.88); color: #fff; padding: 0.75rem 1rem;
  font-size: 0.78rem; font-weight: 600; max-width: 220px;
  border-left: 3px solid var(--flame);
  opacity: 0; transform: translateY(12px);
  transition: opacity 0.6s 0.5s, transform 0.6s 0.5s var(--ease);
}
html.js .hero.is-live .hero-badge,
html:not(.js) .hero-badge { opacity: 1; transform: none; }

/* Category tiles */
.section { padding: 4.5rem 0; }
.section-head { max-width: 40rem; margin-bottom: 2rem; }
.cat-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
}
.cat-tile {
  position: relative; overflow: hidden; min-height: 240px; background: var(--steel);
  color: #fff; isolation: isolate;
}
.cat-tile img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.7s var(--ease), filter 0.5s;
  filter: brightness(0.55);
}
.cat-tile:hover img { transform: scale(1.08); filter: brightness(0.42); }
.cat-tile .body {
  position: relative; z-index: 1; height: 100%; min-height: 240px;
  padding: 1.25rem; display: flex; flex-direction: column; justify-content: flex-end;
}
.cat-tile h3 { font-family: var(--font-display); font-size: 1.35rem; margin-bottom: 0.25rem; }
.cat-tile p { font-size: 0.88rem; color: rgba(255,255,255,0.75); }
.cat-tile .arrow {
  margin-top: 0.75rem; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--flame);
}

/* Feature band */
.feature {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 0; background: var(--plate);
  border: 1px solid var(--line); overflow: hidden;
}
.feature-copy { padding: clamp(1.75rem, 4vw, 3rem); display: flex; flex-direction: column; justify-content: center; }
.feature-media { overflow: hidden; min-height: 360px; }
.feature-media img {
  width: 100%; height: 100%; object-fit: cover; min-height: 360px;
  transform: translateX(8%); transition: transform 1.1s var(--ease);
}
.feature.is-in .feature-media img { transform: none; }
.feature.reverse { grid-template-columns: 0.9fr 1.1fr; }
.feature.reverse .feature-media { order: -1; }

/* Trust strip */
.trust {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  border: 1px solid var(--line); background: #fff;
}
.trust article {
  padding: 1.5rem 1.25rem; border-right: 1px solid var(--line);
}
.trust article:last-child { border-right: 0; }
.trust h3 {
  font-family: var(--font-display); font-size: 1.15rem; margin: 0.4rem 0 0.35rem;
}
.trust p { font-size: 0.9rem; color: var(--mute); }
.trust .ico {
  width: 36px; height: 36px; display: grid; place-items: center;
  background: rgba(255,90,31,0.12); color: var(--flame-deep);
  font-family: var(--font-display); font-weight: 700; font-size: 0.85rem;
}

/* Product cards */
.prod-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem;
}
.prod {
  background: #fff; border: 1px solid var(--line); overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s;
}
.prod:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(20,23,26,0.08); }
.prod img { width: 100%; height: 200px; object-fit: cover; }
.prod-body { padding: 1.15rem 1.2rem 1.35rem; }
.prod .tag {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--cool); margin-bottom: 0.35rem;
}
.prod h3 { font-family: var(--font-display); font-size: 1.2rem; margin-bottom: 0.35rem; }
.prod p { font-size: 0.92rem; color: var(--mute); }

/* Marquee categories */
.ticker {
  overflow: hidden; background: var(--char); color: #fff; padding: 0.85rem 0;
  border-top: 3px solid var(--flame); border-bottom: 3px solid var(--flame);
}
.ticker-track {
  display: flex; gap: 2.5rem; width: max-content;
  animation: tick 28s linear infinite;
  font-family: var(--font-display); font-weight: 600; font-size: 0.95rem;
  letter-spacing: 0.08em; text-transform: uppercase;
}
.ticker-track span::before {
  content: '◆'; color: var(--flame); margin-right: 2.5rem;
}
@keyframes tick {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Page hero */
.page-hero {
  position: relative; min-height: 42vh; display: grid; align-items: end;
  color: #fff; background: var(--char); overflow: hidden;
  padding: 4rem 0 2.5rem;
}
.page-hero-media { position: absolute; inset: 0; }
.page-hero-media img {
  width: 100%; height: 100%; object-fit: cover; filter: brightness(0.42) saturate(0.95);
}
.page-hero .container { position: relative; z-index: 2; }

/* Spec list */
.spec-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.spec-row {
  display: grid; grid-template-columns: 10rem 1fr; gap: 1rem;
  padding: 1rem 0; border-bottom: 1px solid var(--line); align-items: start;
}
.spec-row strong {
  font-family: var(--font-display); font-size: 0.95rem; color: var(--flame-deep);
}

/* FAQ */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; text-align: left; background: none; border: 0; cursor: pointer;
  padding: 1.15rem 0; display: flex; justify-content: space-between; gap: 1rem;
  font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; color: inherit;
}
.faq-q::after { content: '+'; color: var(--flame); font-size: 1.4rem; }
.faq-item.is-open .faq-q::after { content: '–'; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease); }
.faq-a-inner { padding: 0 0 1.15rem; color: var(--mute); max-width: 42rem; }

/* Contact */
.contact-grid {
  display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 1.5rem;
}
.contact-card {
  background: var(--char); color: #fff; padding: 2rem;
}
.contact-card a { color: var(--flame); }
.form-grid { display: grid; gap: 0.85rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; }
label {
  display: grid; gap: 0.3rem; font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
}
input, textarea, select {
  width: 100%; padding: 0.85rem 0.95rem; border: 1px solid var(--line);
  background: #fff; color: var(--char);
}
input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--flame); outline-offset: 1px;
}
.form-note { font-size: 0.88rem; color: var(--mute); }
.form-success {
  display: none; padding: 0.9rem; background: #1f6b45; color: #fff; margin-top: 0.5rem;
}
.form-success.is-show { display: block; }

/* Legal */
.legal { padding: 2.5rem 0 4rem; max-width: 720px; }
.legal h2 { font-family: var(--font-display); font-size: 1.35rem; margin: 1.75rem 0 0.6rem; }
.legal p, .legal li { margin-bottom: 0.7rem; color: var(--mute); }
.legal ul { padding-left: 1.15rem; list-style: disc; }

/* Reveal */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }
html:not(.js) .reveal { opacity: 1; transform: none; }
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.16s; }
.d3 { transition-delay: 0.24s; }

/* Footer */
.site-footer {
  background: var(--char); color: rgba(255,255,255,0.72); padding: 3.5rem 0 1.75rem;
  margin-top: 0;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2.25rem;
}
.site-footer .brand-text strong { color: #fff; }
.site-footer .brand-text small { color: rgba(255,255,255,0.45); }
.footer-col h4 {
  font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--flame); margin-bottom: 0.9rem; font-weight: 700;
}
.footer-col a { display: block; padding: 0.25rem 0; font-size: 0.92rem; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12); padding-top: 1.15rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.75rem;
  font-size: 0.82rem;
}

@media (max-width: 980px) {
  .hero, .cat-grid, .feature, .feature.reverse, .trust, .prod-grid, .contact-grid, .footer-grid, .spec-row {
    grid-template-columns: 1fr;
  }
  .feature.reverse .feature-media { order: 0; }
  .cat-grid { grid-template-columns: 1fr 1fr; }
  .trust article { border-right: 0; border-bottom: 1px solid var(--line); }
  .nav { display: none; }
  .nav.is-open {
    display: flex; flex-direction: column; position: absolute;
    top: 100%; left: 0; right: 0; background: var(--fog);
    padding: 1rem 1.25rem 1.5rem; border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 30px rgba(0,0,0,0.08);
  }
  .nav-toggle { display: flex; }
  .header-main { position: relative; }
  .form-row { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .cat-grid { grid-template-columns: 1fr; }
}