/* Metabolinc — site styles */

@font-face {
  font-family: "Barlow Condensed";
  src: url("../fonts/barlow-condensed-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Barlow Condensed";
  src: url("../fonts/barlow-condensed-latin-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "Source Sans 3";
  src: url("../fonts/source-sans-3-latin-wght-normal.woff2") format("woff2");
  font-weight: 200 900;
  font-display: swap;
}

:root {
  --bg: #0b0c0e;
  --panel: rgba(12, 13, 16, 0.78);
  --panel-edge: rgba(255, 255, 255, 0.08);
  --text: #eceae6;
  --text-muted: #b9b6b0;
  --gold: #e9b44c;
  --gold-hover: #f3c86f;
  --gold-ink: #1a1508;
  --radius: 14px;
  --gutter: clamp(16px, 4vw, 48px);
  --fade: 1.5s;
  --font-head: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  display: flex;
  flex-direction: column;
}

a { color: var(--gold); text-underline-offset: 3px; }
a:hover { color: var(--gold-hover); }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

.skip-link {
  position: absolute; left: -9999px; top: 8px;
  background: var(--gold); color: var(--gold-ink);
  padding: 8px 14px; border-radius: 6px; z-index: 100;
}
.skip-link:focus { left: 8px; }

/* ---------- Background photos ---------- */
.backdrop {
  position: fixed; inset: 0; z-index: -1;
  background: var(--bg);
  overflow: hidden;
}
.backdrop img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity var(--fade) ease-in-out;
}
.backdrop img.is-visible { opacity: 1; }
/* Darkening wash so text panels and header stay readable on any photo */
.backdrop::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.25) 30%, rgba(0,0,0,0.45) 100%);
}

/* ---------- Header ---------- */
.site-header {
  position: relative; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  padding: 22px var(--gutter);
}
.brand { text-decoration: none; color: var(--text); line-height: 1.1; }
.brand:hover { color: var(--text); }
.brand-name {
  display: block;
  font-family: var(--font-head); font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.6rem);
  letter-spacing: 0.01em;
  text-shadow: 0 2px 12px rgba(0,0,0,0.5);
}
.brand-tagline {
  display: block;
  font-size: 0.95rem; color: var(--text-muted);
  letter-spacing: 0.04em;
  text-shadow: 0 1px 8px rgba(0,0,0,0.6);
}

.nav-toggle {
  display: none;
  align-items: center; gap: 10px;
  font: 700 1.05rem/1 var(--font-head); letter-spacing: 0.08em; text-transform: uppercase;
  background: var(--gold); color: var(--gold-ink);
  border: 0; border-radius: 8px; padding: 11px 16px; cursor: pointer;
}
.nav-toggle:hover { background: var(--gold-hover); }
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
  display: block; width: 18px; height: 2px; background: currentColor; position: relative;
}
.nav-toggle-bars::before, .nav-toggle-bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle-bars::before { top: -6px; }
.nav-toggle-bars::after { top: 6px; }

.site-nav ul { list-style: none; margin: 0; padding: 0; }
.site-nav > ul { display: flex; gap: 6px; align-items: center; }
.site-nav a {
  display: block;
  font: 600 1.15rem/1 var(--font-head); letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--text); text-decoration: none;
  padding: 10px 14px; border-radius: 8px;
}
.site-nav a:hover { color: var(--gold); }
.site-nav a[aria-current="page"] { color: var(--gold); }
.site-nav .has-sub { position: relative; }
.site-nav .sub {
  position: absolute; right: 0; top: 100%;
  min-width: 290px; padding: 8px;
  background: rgba(12, 13, 16, 0.94);
  border: 1px solid var(--panel-edge); border-radius: 10px;
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity .15s, transform .15s, visibility .15s;
}
.site-nav .has-sub:hover .sub,
.site-nav .has-sub:focus-within .sub { opacity: 1; visibility: visible; transform: none; }
.site-nav .sub a { text-transform: none; letter-spacing: 0.02em; font-size: 1.1rem; padding: 12px 14px; }

/* ---------- Main panel ---------- */
main { flex: 1; padding: 8px var(--gutter) 40px; }

.panel {
  max-width: 1120px; margin: 0 auto;
  background: var(--panel);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border: 1px solid var(--panel-edge);
  border-radius: var(--radius);
  padding: clamp(24px, 5vw, 56px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}

h1, h2, h3 { font-family: var(--font-head); font-weight: 700; line-height: 1.1; margin: 0 0 0.6em; }
h1 { font-size: clamp(2.4rem, 5vw, 3.4rem); letter-spacing: 0.01em; }
h1::after {
  content: ""; display: block; width: 56px; height: 3px;
  background: var(--gold); margin-top: 14px; border-radius: 2px;
}
h2 { font-size: 1.6rem; letter-spacing: 0.02em; color: var(--gold); }
p { margin: 0 0 1.1em; }

.cols { display: grid; gap: clamp(28px, 4vw, 56px); grid-template-columns: 1.7fr 1fr 1fr; }
.cols > aside h2 { font-size: 1.35rem; }

.ticks { list-style: none; margin: 0; padding: 0; }
.ticks li { position: relative; padding: 5px 0 5px 20px; line-height: 1.4; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 0.95em;
  width: 8px; height: 8px; border-radius: 2px; background: var(--gold);
  transform: translateY(-50%) rotate(45deg);
}

.cols-2 { grid-template-columns: 1fr 1fr; }
.cols-contact { grid-template-columns: 1fr 1.6fr; }
.cols h2:not(:first-child) { margin-top: 1.4em; }
.ticks + .after-list { margin-top: 1.1em; }

.crumb { margin: 0 0 6px; font-family: var(--font-head); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.95rem; }
.crumb a { text-decoration: none; }
.crumb a::before { content: "\2190\00a0"; }
.more { font-weight: 600; }
.more::after { content: "\00a0\2192"; }

.panel-narrow { max-width: 640px; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- Contact form ---------- */
.contact-form label {
  display: block; margin: 0 0 6px;
  font-weight: 600; font-size: 0.95rem; letter-spacing: 0.02em; color: var(--text);
}
.contact-form input[type=text],
.contact-form input[type=email],
.contact-form textarea {
  display: block; width: 100%; margin: 0 0 18px;
  font: inherit; color: var(--text);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16); border-radius: 8px;
  padding: 11px 13px;
}
.contact-form textarea { resize: vertical; min-height: 150px; }
.contact-form input:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--gold); background: rgba(255,255,255,0.09);
}
.contact-form .botcheck { display: none; }
.contact-form .h-captcha { margin: 4px 0 18px; min-height: 78px; }
.btn {
  font: 700 1.1rem/1 var(--font-head); letter-spacing: 0.1em; text-transform: uppercase;
  background: var(--gold); color: var(--gold-ink);
  border: 0; border-radius: 8px; padding: 14px 30px; cursor: pointer;
}
.btn:hover { background: var(--gold-hover); }
.btn:disabled { opacity: 0.6; cursor: wait; }
.form-status { margin: 14px 0 0; min-height: 1.6em; }
.form-status.is-ok { color: #9fd8a4; }
.form-status.is-error { color: #f2a29a; }

/* ---------- Footer ---------- */
.site-footer {
  padding: 18px var(--gutter) 28px;
  color: var(--text-muted); font-size: 0.9rem;
  text-align: center;
  text-shadow: 0 1px 6px rgba(0,0,0,0.7);
}

/* ---------- Home ---------- */
.home main { padding: 0; }
.home .site-header { padding-top: clamp(28px, 6vh, 64px); }

/* ---------- Small screens ---------- */
@media (max-width: 900px) {
  .cols { grid-template-columns: 1fr 1fr; }
  .cols > div:first-child { grid-column: 1 / -1; }
  .cols-2, .cols-contact { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .site-header { flex-wrap: wrap; align-items: flex-start; }
  .nav-toggle { display: inline-flex; }
  .site-nav { display: none; width: 100%; }
  .site-nav.is-open { display: block; }
  .site-nav > ul {
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(12, 13, 16, 0.94);
    border: 1px solid var(--panel-edge); border-radius: 12px; padding: 8px;
  }
  .site-nav a { padding: 14px 12px; }
  .site-nav .sub {
    position: static; opacity: 1; visibility: visible; transform: none;
    min-width: 0; background: none; border: 0; padding: 0 0 0 14px;
  }
  .cols { grid-template-columns: 1fr; }
  .panel { -webkit-backdrop-filter: none; backdrop-filter: none; background: rgba(12, 13, 16, 0.86); }
}

@media (prefers-reduced-motion: reduce) {
  .backdrop img { transition: none; }
}