/* ============================================================
   TerraTrade Corporation — Industrial equipment trading
   Deep charcoal/steel neutrals + safety-amber accent
   ============================================================ */

/* ---------- Tokens ---------- */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.78rem + 0.2vw, 0.9375rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.2vw, 2.125rem);
  --text-2xl: clamp(2rem, 1.3rem + 2.4vw, 3.25rem);
  --text-3xl: clamp(2.6rem, 1.4rem + 4.4vw, 5rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  /* Steel / charcoal neutrals */
  --color-bg: #14161a;
  --color-bg-2: #191c21;
  --color-surface: #1e2228;
  --color-surface-2: #252a31;
  --color-border: #333a43;
  --color-border-strong: #454e59;

  --color-text: #e8eaed;
  --color-text-muted: #9aa3ad;
  --color-text-faint: #6b7480;
  --color-ink: #0e1013;

  /* Safety amber accent */
  --color-amber: #f5a800;
  --color-amber-hover: #ffbb1c;
  --color-amber-soft: rgba(245, 168, 0, 0.12);
  --color-amber-line: rgba(245, 168, 0, 0.35);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 999px;

  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 20px 50px rgba(0,0,0,0.55);

  --content: 1200px;
  --content-narrow: 780px;

  --font-display: 'Space Grotesk', 'Archivo', system-ui, sans-serif;
  --font-body: 'Archivo', system-ui, -apple-system, sans-serif;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility; scroll-behavior: smooth;
  scroll-padding-top: 84px;
}
body {
  min-height: 100dvh; line-height: 1.6;
  font-family: var(--font-body); font-size: var(--text-base);
  color: var(--color-text); background: var(--color-bg);
  overflow-x: hidden;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
ul[role='list'] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
h1,h2,h3,h4 { text-wrap: balance; line-height: 1.08; font-family: var(--font-display); }
p { text-wrap: pretty; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--color-amber); color: var(--color-ink); }
:focus-visible { outline: 2px solid var(--color-amber); outline-offset: 3px; border-radius: var(--radius-sm); }
.tnum { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}

/* ---------- Layout helpers ---------- */
.wrap { width: min(100% - 2.5rem, var(--content)); margin-inline: auto; }
.section { padding-block: clamp(var(--space-16), 9vw, var(--space-32)); }
.eyebrow {
  font-family: var(--font-display); font-weight: 600;
  font-size: var(--text-xs); letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--color-amber); display: inline-flex; align-items: center; gap: var(--space-3);
}
.eyebrow::before { content: ''; width: 28px; height: 2px; background: var(--color-amber); display: inline-block; }
.section-head { max-width: 640px; margin-bottom: var(--space-12); }
.section-head h2 { font-size: var(--text-2xl); margin-top: var(--space-4); letter-spacing: -0.02em; }
.section-head p { color: var(--color-text-muted); margin-top: var(--space-5); font-size: var(--text-base); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-display); font-weight: 600; font-size: var(--text-sm);
  letter-spacing: 0.02em; padding: 0.85em 1.5em; border-radius: var(--radius-sm);
  transition: var(--transition); white-space: nowrap;
}
.btn-primary, a.btn-primary, .btn-primary:link, .btn-primary:visited { background: var(--color-amber); color: var(--color-ink); }
.btn-primary:hover, a.btn-primary:hover { background: var(--color-amber-hover); color: var(--color-ink); transform: translateY(-1px); }
.btn-ghost { border: 1px solid var(--color-border-strong); color: var(--color-text); }
.btn-ghost:hover { border-color: var(--color-amber); color: var(--color-amber); }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(20,22,26,0.82); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: var(--space-3); }
.brand svg { width: 34px; height: 34px; color: var(--color-amber); flex-shrink: 0; }
.brand-name { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em; }
.brand-name span { color: var(--color-amber); }
.nav { display: flex; align-items: center; gap: var(--space-8); }
.nav a { font-size: var(--text-sm); color: var(--color-text-muted); font-weight: 500; transition: var(--transition); }
.nav a:hover { color: var(--color-text); }
.header .btn { padding: 0.6em 1.1em; }
.nav-toggle { display: none; color: var(--color-text); }

@media (max-width: 900px) {
  .nav { display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: var(--color-bg-2);
    border-bottom: 1px solid var(--color-border); padding: var(--space-2) var(--space-4) var(--space-6); align-items: stretch; }
  .nav.open { display: flex; }
  .nav a { padding: var(--space-4) var(--space-2); border-bottom: 1px solid var(--color-border); }
  .nav .btn { margin-top: var(--space-4); justify-content: center; }
  .nav-toggle { display: inline-flex; }
}

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 88vh; display: flex; align-items: center;
  border-bottom: 1px solid var(--color-border); overflow: hidden; }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; }
.hero-bg::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(14,16,19,0.96) 0%, rgba(14,16,19,0.82) 40%, rgba(14,16,19,0.35) 100%);
}
.hero-inner { position: relative; z-index: 2; padding-block: var(--space-24); max-width: 720px; }
.hero h1 { font-size: var(--text-3xl); letter-spacing: -0.03em; margin-top: var(--space-6); }
.hero h1 em { font-style: normal; color: var(--color-amber); }
.hero p { color: #c4cad1; font-size: var(--text-lg); margin-top: var(--space-6); max-width: 56ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-4); margin-top: var(--space-10); }
.hero-markets { margin-top: var(--space-12); display: flex; flex-wrap: wrap; gap: var(--space-6) var(--space-8);
  padding-top: var(--space-8); border-top: 1px solid var(--color-border); }
.hero-markets div { display: flex; flex-direction: column; gap: 2px; }
.hero-markets dt { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-text-faint); }
.hero-markets dd { font-family: var(--font-display); font-weight: 600; font-size: var(--text-sm); }

/* ---------- Marquee strip ---------- */
.strip { background: var(--color-amber); color: var(--color-ink); overflow: hidden; border-bottom: 1px solid #000; }
.strip-track { display: flex; gap: var(--space-10); white-space: nowrap; padding-block: var(--space-3);
  font-family: var(--font-display); font-weight: 700; font-size: var(--text-sm); letter-spacing: 0.04em;
  text-transform: uppercase; animation: scroll 32s linear infinite; }
.strip-track span { display: inline-flex; align-items: center; gap: var(--space-10); }
.strip-track span::after { content: '◆'; font-size: 0.7em; opacity: 0.6; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* ---------- Inventory ---------- */
.inv-controls { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-8); }
.filter {
  font-family: var(--font-display); font-weight: 600; font-size: var(--text-sm);
  padding: 0.55em 1.15em; border-radius: var(--radius-full, 999px);
  border: 1px solid var(--color-border-strong); color: var(--color-text-muted); transition: var(--transition);
}
.filter:hover { border-color: var(--color-amber); color: var(--color-text); }
.filter.active { background: var(--color-amber); color: var(--color-ink); border-color: var(--color-amber); }

.disclaimer {
  display: flex; gap: var(--space-4); align-items: flex-start;
  background: var(--color-amber-soft); border: 1px solid var(--color-amber-line);
  border-radius: var(--radius-md); padding: var(--space-5) var(--space-6); margin-bottom: var(--space-10);
}
.disclaimer svg { color: var(--color-amber); flex-shrink: 0; width: 22px; height: 22px; margin-top: 2px; }
.disclaimer p { font-size: var(--text-sm); color: var(--color-text-muted); margin: 0; max-width: none; }
.disclaimer strong { color: var(--color-text); font-weight: 600; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: var(--space-6); }
.card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column;
  transition: var(--transition);
}
.card:hover { border-color: var(--color-border-strong); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card-media { position: relative; aspect-ratio: 4/3; background: var(--color-bg-2); overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms cubic-bezier(0.16,1,0.3,1); }
.card:hover .card-media img { transform: scale(1.04); }
.card-cat {
  position: absolute; top: var(--space-3); left: var(--space-3);
  font-family: var(--font-display); font-weight: 700; font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
  background: rgba(14,16,19,0.85); color: var(--color-amber); padding: 0.4em 0.75em; border-radius: var(--radius-sm);
  border: 1px solid var(--color-amber-line);
}
.card-caption { position: absolute; bottom: var(--space-2); right: var(--space-3);
  font-size: 0.65rem; letter-spacing: 0.05em; text-transform: uppercase; color: #b9bfc6;
  background: rgba(14,16,19,0.7); padding: 0.25em 0.55em; border-radius: 3px; }
.card-body { padding: var(--space-5) var(--space-6) var(--space-6); display: flex; flex-direction: column; flex: 1; }
.card-id { font-family: var(--font-display); font-size: var(--text-xs); letter-spacing: 0.1em; color: var(--color-text-faint); }
.card h3 { font-size: 1.0625rem; line-height: 1.25; margin-top: var(--space-2); letter-spacing: -0.01em; }
.card-specs { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-3); line-height: 1.55; flex: 1; }
.card-foot { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--space-4); margin-top: var(--space-6); }
.card-price { display: flex; flex-direction: column; }
.card-price small { font-size: var(--text-xs); color: var(--color-text-faint); text-transform: uppercase; letter-spacing: 0.08em; }
.card-price .amt { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; color: var(--color-text); letter-spacing: -0.01em; }
.card-foot .btn { padding: 0.7em 1.1em; font-size: var(--text-xs); }
.no-results { grid-column: 1/-1; text-align: center; color: var(--color-text-muted); padding: var(--space-16); }

/* ---------- Categories band ---------- */
.cats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--space-4); }
.cat-tile { position: relative; aspect-ratio: 3/4; border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--color-border);
  transition: var(--transition); }
.cat-tile:hover { border-color: var(--color-amber); }
.cat-tile img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(0.15) brightness(0.75); transition: var(--transition); }
.cat-tile:hover img { filter: grayscale(0) brightness(0.9); transform: scale(1.05); }
.cat-tile span { position: absolute; left: var(--space-4); bottom: var(--space-4); right: var(--space-4);
  font-family: var(--font-display); font-weight: 700; font-size: var(--text-sm); letter-spacing: 0.02em; z-index: 2; }
.cat-tile::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(14,16,19,0.95), transparent 65%); }

/* ---------- Process ---------- */
.process { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-5); counter-reset: step; }
.step { position: relative; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: var(--space-8) var(--space-6) var(--space-6); }
.step::before { counter-increment: step; content: '0' counter(step);
  font-family: var(--font-display); font-weight: 700; font-size: 2rem; color: var(--color-amber);
  letter-spacing: -0.02em; display: block; margin-bottom: var(--space-4); font-variant-numeric: tabular-nums; }
.step h3 { font-size: var(--text-lg); letter-spacing: -0.01em; }
.step p { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: var(--space-3); }
.step-line { width: 40px; height: 3px; background: var(--color-border-strong); position: absolute; top: var(--space-8); right: 0; }

/* ---------- About / Compliance ---------- */
.about { display: grid; grid-template-columns: 1fr 1.15fr; gap: var(--space-16); align-items: start; }
@media (max-width: 860px) { .about { grid-template-columns: 1fr; gap: var(--space-12); } }
.legal-card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-8); }
.legal-card h3 { font-size: var(--text-lg); margin-bottom: var(--space-6); }
.legal-list { display: flex; flex-direction: column; gap: var(--space-4); }
.legal-list div { display: flex; flex-direction: column; gap: 2px; padding-bottom: var(--space-4); border-bottom: 1px solid var(--color-border); }
.legal-list div:last-child { border-bottom: none; padding-bottom: 0; }
.legal-list dt { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text-faint); }
.legal-list dd { font-size: var(--text-sm); font-weight: 500; }
.commit-list { display: flex; flex-direction: column; gap: var(--space-5); }
.commit-list li { display: flex; gap: var(--space-4); align-items: flex-start; }
.commit-list svg { color: var(--color-amber); flex-shrink: 0; width: 22px; height: 22px; margin-top: 3px; }
.commit-list strong { font-family: var(--font-display); display: block; font-size: var(--text-base); font-weight: 600; }
.commit-list p { font-size: var(--text-sm); color: var(--color-text-muted); margin-top: 3px; }
.about-intro { color: var(--color-text-muted); }
.about-intro p + p { margin-top: var(--space-4); }

/* ---------- Contact ---------- */
.contact { background: var(--color-bg-2); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); }
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-16); align-items: center; }
@media (max-width: 860px) { .contact-inner { grid-template-columns: 1fr; gap: var(--space-10); } }
.contact h2 { font-size: var(--text-2xl); letter-spacing: -0.02em; margin-top: var(--space-4); }
.contact p { color: var(--color-text-muted); margin-top: var(--space-5); }
.contact-details { margin-top: var(--space-8); display: flex; flex-direction: column; gap: var(--space-4); }
.contact-details a, .contact-details span { display: flex; gap: var(--space-3); align-items: center; font-size: var(--text-sm); }
.contact-details svg { color: var(--color-amber); width: 20px; height: 20px; flex-shrink: 0; }
.quote-box { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-8); }
.quote-box h3 { font-size: var(--text-lg); }
.field { margin-top: var(--space-5); }
.field label { display: block; font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-text-faint); margin-bottom: var(--space-2); }
.field select, .field textarea, .field input {
  width: 100%; background: var(--color-bg); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); padding: 0.7em 0.85em; color: var(--color-text); font-size: var(--text-sm);
  transition: var(--transition);
}
.field select:focus, .field textarea:focus, .field input:focus { border-color: var(--color-amber); outline: none; }
.field textarea { resize: vertical; min-height: 90px; }

/* ---------- Footer ---------- */
.footer { padding-block: var(--space-16) var(--space-10); }
.footer-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-10); padding-bottom: var(--space-10); border-bottom: 1px solid var(--color-border); }
.footer-brand { max-width: 320px; }
.footer-brand p { color: var(--color-text-muted); font-size: var(--text-sm); margin-top: var(--space-4); }
.footer-cols { display: flex; gap: var(--space-16); flex-wrap: wrap; }
.footer-col h4 { font-family: var(--font-display); font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.12em; color: var(--color-text-faint); margin-bottom: var(--space-4); }
.footer-col a, .footer-col span { display: block; font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-3); transition: var(--transition); }
.footer-col a:hover { color: var(--color-amber); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-4); padding-top: var(--space-8); }
.footer-bottom p { font-size: var(--text-xs); color: var(--color-text-faint); }
.footer-note { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-8); max-width: 900px; line-height: 1.6; }

/* ---------- Modal ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: none; align-items: center; justify-content: center; padding: var(--space-4); }
.modal.open { display: flex; }
.modal-overlay { position: absolute; inset: 0; background: rgba(8,9,11,0.8); backdrop-filter: blur(4px); }
.modal-panel { position: relative; z-index: 2; width: min(100%, 480px); background: var(--color-surface);
  border: 1px solid var(--color-border-strong); border-radius: var(--radius-lg); padding: var(--space-8); box-shadow: var(--shadow-lg); }
.modal-panel .eyebrow { margin-bottom: var(--space-3); }
.modal-panel h3 { font-size: var(--text-lg); line-height: 1.2; }
.modal-unit { font-family: var(--font-display); font-size: var(--text-xs); letter-spacing: 0.1em; color: var(--color-amber); margin-top: var(--space-2); }
.modal-close { position: absolute; top: var(--space-4); right: var(--space-4); color: var(--color-text-muted); width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); }
.modal-close:hover { color: var(--color-text); background: var(--color-surface-2); }

/* Reveal animation */
[data-reveal] { opacity: 0; transform: translateY(20px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.16,1,0.3,1); }
[data-reveal].in { opacity: 1; transform: none; }

@media (max-width: 560px) {
  .hero { min-height: 78vh; }
  .card-foot { flex-direction: column; align-items: stretch; }
  .card-foot .btn { justify-content: center; }
}