/* Harness Logic — shared styles */

@font-face {
  font-family: "Slussen";
  src: url("/assets/fonts/Slussen-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 60% 140%;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Slussen Mono";
  src: url("/assets/fonts/Slussen-Mono-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  /* colour */
  --color-brand: #7e8743;
  --color-brand-dark: #656d36;
  --color-brand-tint: #eef0e5;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f4f4;
  --color-text: #333333;
  --color-text-muted: #666666;
  --color-border: #dcdcdc;
  --color-white: #ffffff;

  /* type */
  --font-display: "Slussen", Arial, sans-serif;
  --font-body: "Slussen", Arial, sans-serif;
  --font-mono: "Slussen Mono", "SFMono-Regular", Consolas, monospace;

  --fw-thin: 100;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;
  --fw-black: 900;

  --fstr-compressed: 62%;
  --fstr-normal: 100%;
  --fstr-expanded: 130%;

  /* spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 6rem;

  /* layout */
  --container-max: 75rem;
  --gutter: clamp(1rem, 4vw, 2.5rem);
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: var(--fw-regular);
  font-stretch: var(--fstr-normal);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
ul { padding: 0; margin: 0; list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  margin: 0 0 var(--space-3);
  line-height: 1.1;
  text-wrap: balance;
}
h1 { font-weight: var(--fw-black); font-stretch: var(--fstr-compressed); font-size: clamp(2.5rem, 6vw, 4.5rem); letter-spacing: -0.01em; }
h2 { font-weight: var(--fw-bold); font-stretch: var(--fstr-compressed); font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-weight: var(--fw-bold); font-stretch: var(--fstr-normal); font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
p { margin: 0 0 var(--space-3); color: var(--color-text); }
p:last-child { margin-bottom: 0; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-weight: var(--fw-semibold);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-brand-dark);
  margin-bottom: var(--space-2);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section { padding: var(--space-8) 0; }
.section--alt { background: var(--color-bg-alt); }
.section-head { max-width: 42rem; margin: 0 0 var(--space-6); }
.section-head p { color: var(--color-text-muted); }

.lede { font-size: 1.15rem; color: var(--color-text-muted); max-width: 42rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-weight: var(--fw-semibold);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85em 1.6em;
  border: 1px solid var(--color-brand);
  border-radius: 2px;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn--primary { background: var(--color-brand); color: var(--color-white); }
.btn--primary:hover { background: var(--color-brand-dark); border-color: var(--color-brand-dark); }
.btn--ghost { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn--ghost:hover { border-color: var(--color-brand); color: var(--color-brand-dark); }
.btn-row { display: flex; flex-wrap: wrap; gap: var(--space-3); }

/* Header */
.site-header {
  border-bottom: 1px solid var(--color-brand-dark);
  background: var(--color-brand);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}
.brand { display: flex; align-items: center; gap: var(--space-2); text-decoration: none; }
.brand img { height: 40px; width: auto; }
.brand-name {
  font-family: var(--font-display);
  font-weight: var(--fw-black);
  font-stretch: var(--fstr-compressed);
  font-size: 1.25rem;
  color: var(--color-white);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 2px;
  width: 44px;
  height: 40px;
  padding: 0;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--color-white); }

.site-nav ul { display: flex; gap: var(--space-5); }
.site-nav a {
  text-decoration: none;
  font-family: var(--font-mono);
  font-weight: var(--fw-medium);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-white);
  padding: var(--space-1) 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--color-white); border-color: var(--color-white); }

@media (max-width: 54rem) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-brand);
    border-bottom: 1px solid var(--color-brand-dark);
    display: none;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; }
  .site-nav a { display: block; padding: var(--space-3) var(--gutter); border-bottom: 1px solid var(--color-brand-dark); }
}

/* Hero */
.hero { padding: var(--space-8) 0; }
.hero-inner { max-width: 46rem; }
.hero p.lede { margin-bottom: var(--space-5); }

/* Hairline seam grid */
.grid-seam {
  display: grid;
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}
.grid-seam > * { background: var(--color-bg); padding: var(--space-5); }
@media (min-width: 40rem) {
  .grid-seam.cols-2 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 48rem) {
  .grid-seam.cols-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-seam.cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 72rem) {
  .grid-seam.cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* Proof strip */
.proof-strip .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-weight: var(--fw-semibold);
  color: var(--color-brand-dark);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

/* Pillars / sectors / capability cards */
.card h3 { margin-bottom: var(--space-2); }
.card .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand-dark);
  background: var(--color-brand-tint);
  padding: 0.2em 0.6em;
  border-radius: 2px;
  margin-bottom: var(--space-3);
}

/* Services (full width list) */
.service-item {
  border-top: 1px solid var(--color-border);
  padding: var(--space-6) 0;
  display: grid;
  gap: var(--space-4);
}
.service-item:last-child { border-bottom: 1px solid var(--color-border); }
@media (min-width: 54rem) {
  .service-item { grid-template-columns: 1fr 1fr; align-items: start; }
}
.service-item .service-index {
  font-family: var(--font-mono);
  color: var(--color-brand-dark);
  font-weight: var(--fw-semibold);
}
.service-item ul { display: grid; gap: var(--space-2); }
.service-item ul li {
  padding-left: 1.2em;
  position: relative;
}
.service-item ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  background: var(--color-brand);
}

/* Process steps */
.process-steps { display: grid; gap: var(--space-5); counter-reset: step; }
@media (min-width: 48rem) { .process-steps { grid-template-columns: repeat(5, 1fr); } }
.process-step { counter-increment: step; }
.process-step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--font-mono);
  font-weight: var(--fw-semibold);
  color: var(--color-brand-dark);
  font-size: 0.85rem;
  margin-bottom: var(--space-2);
}

/* Equipment table */
.table-wrap { overflow-x: auto; }
table.equipment-table { width: 100%; border-collapse: collapse; min-width: 40rem; }
.equipment-table th, .equipment-table td {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: 0.95rem;
}
.equipment-table thead th {
  background: var(--color-bg-alt);
  font-family: var(--font-mono);
  font-weight: var(--fw-semibold);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.equipment-table td.spec { font-family: var(--font-mono); color: var(--color-text-muted); }

/* CTA banner */
.cta-banner {
  background: var(--color-brand);
  color: var(--color-white);
  text-align: center;
  padding: var(--space-7) 0;
}
.cta-banner h2 { color: var(--color-white); }
.cta-banner .btn--primary { background: var(--color-white); color: var(--color-brand-dark); border-color: var(--color-white); }
.cta-banner .btn--primary:hover { background: var(--color-bg-alt); }
.cta-banner .btn--ghost { color: var(--color-white); border-color: rgba(255,255,255,0.6); }
.cta-banner .btn--ghost:hover { border-color: var(--color-white); }

/* Anonymised project cards */
.project-card { border: 1px solid var(--color-border); padding: var(--space-5); background: var(--color-bg); }

/* Contact page */
.contact-layout { display: grid; gap: var(--space-7); }
@media (min-width: 64rem) { .contact-layout { grid-template-columns: 2fr 1fr; } }

.form-field { margin-bottom: var(--space-4); }
.form-field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
  color: var(--color-text-muted);
}
.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="tel"],
.form-field input[type="file"],
.form-field select,
.form-field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75em 0.9em;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  background: var(--color-bg);
  color: var(--color-text);
}
.form-field textarea { resize: vertical; min-height: 8rem; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--color-brand);
}
.checkbox-group { display: grid; gap: var(--space-2); }
.checkbox-group label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-transform: none;
  font-family: var(--font-body);
  font-weight: var(--fw-regular);
  letter-spacing: normal;
  color: var(--color-text);
}
.checkbox-group input { width: auto; }
.form-row { display: grid; gap: var(--space-4); }
@media (min-width: 40rem) { .form-row.two-col { grid-template-columns: 1fr 1fr; } }
.honeypot-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-status { margin-top: var(--space-3); font-weight: var(--fw-medium); }
.form-status--success { color: var(--color-brand-dark); }
.form-status--error { color: #b3261e; }

.contact-side { display: grid; gap: var(--space-5); align-content: start; }
.contact-side .card { border-top: 1px solid var(--color-border); padding-top: var(--space-4); }

.social-row { display: flex; flex-wrap: wrap; gap: var(--space-4); }
.social-row a {
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.social-row a:hover { color: var(--color-brand-dark); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: var(--space-6) 0;
}
.footer-grid { display: grid; gap: var(--space-5); }
@media (min-width: 48rem) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.footer-grid .brand img { height: 32px; }
.footer-nav ul { display: grid; gap: var(--space-2); }
.footer-nav a { text-decoration: none; font-size: 0.9rem; color: var(--color-text-muted); }
.footer-nav a:hover { color: var(--color-brand-dark); }
.footer-bottom {
  margin-top: var(--space-5);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
}

/* Reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal--visible { opacity: 1; transform: none; }