/*
 * Ezzogenics.com hub — site stylesheet.
 * Tone: technical, authoritative, contractor-company. Single accent (Hydra Teal),
 * deep navy ink, warm cream surfaces. Cabinet Grotesk headlines + Satoshi body.
 */

:root {
  --ink: #0F2A44;
  --ink-2: #1F3A5C;
  --muted: #5C6B80;
  --line: #DCD9D1;
  --bg: #F7F5EE;
  --surface: #FFFFFF;
  --surface-2: #FBFAF4;
  --accent: #01696F;        /* Hydra Teal */
  --accent-hover: #0C4E54;
  --warning: #964219;
  --max: 1180px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: 'Cabinet Grotesk', 'Satoshi', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 0.6em;
}
h1 { font-size: clamp(2rem, 4.2vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 700; }
h4 { font-size: 1.05rem; font-weight: 700; }

p { margin: 0 0 1em; }
ul, ol { padding-left: 1.2em; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }

.skip-link {
  position: absolute; left: -9999px; top: -9999px;
  background: var(--ink); color: #fff; padding: 0.5rem 1rem; z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* --- Header / nav --- */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50;
}
.nav-row {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; padding: 0.85rem 1.25rem;
}
.brand { display: flex; align-items: center; gap: 0.7rem; color: var(--ink); }
.brand img { height: 38px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: 'Cabinet Grotesk', sans-serif; font-weight: 800; font-size: 1.05rem; letter-spacing: 0.02em; }
.brand-text span { font-size: 0.78rem; color: var(--muted); }

.primary-nav { display: flex; gap: 1.1rem; align-items: center; }
.primary-nav a {
  color: var(--ink); font-weight: 500; font-size: 0.94rem; padding: 0.45rem 0.1rem;
  border-bottom: 2px solid transparent; text-decoration: none;
}
.primary-nav a:hover, .primary-nav a.active { color: var(--accent); border-color: var(--accent); }
.primary-nav .nav-cta {
  background: var(--accent); color: #fff !important; border-radius: 999px;
  padding: 0.5rem 1rem; border: none;
}
.primary-nav .nav-cta:hover { background: var(--accent-hover); border-color: transparent; }

.nav-toggle {
  display: none; background: transparent; border: 1px solid var(--line);
  padding: 0.4rem 0.7rem; border-radius: 6px; cursor: pointer; color: var(--ink);
}
.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .primary-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--surface); border-bottom: 1px solid var(--line);
    padding: 0.5rem 1.25rem; display: none;
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { padding: 0.7rem 0; border-bottom: 1px solid var(--line); }
  .primary-nav a:last-child { border-bottom: none; }
}

/* --- Hero --- */
.hero {
  background:
    linear-gradient(180deg, rgba(15,42,68,0.0) 0%, rgba(15,42,68,0.05) 100%),
    var(--bg);
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(1.5rem, 4vw, 3rem);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(1.5rem, 3vw, 3rem);
  align-items: center;
}
@media (max-width: 880px) { .hero-grid { grid-template-columns: 1fr; } }
.eyebrow {
  text-transform: uppercase; letter-spacing: 0.16em; font-size: 0.75rem;
  color: var(--accent); font-weight: 700; margin: 0 0 0.6rem;
}
.lead { font-size: 1.1rem; color: var(--ink-2); max-width: 56ch; }
.hero-ctas { display: flex; gap: 0.7rem; flex-wrap: wrap; margin-top: 1.4rem; }

.btn {
  display: inline-block; padding: 0.7rem 1.2rem; border-radius: 999px;
  font-weight: 600; font-size: 0.95rem; cursor: pointer;
  border: 1.5px solid transparent; transition: all 0.15s ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; text-decoration: none; }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: #fff; text-decoration: none; }
.btn-ghost { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-ghost:hover { background: var(--accent); color: #fff; text-decoration: none; }

.hero-media img {
  border-radius: 14px; box-shadow: 0 20px 60px -20px rgba(15,42,68,0.4);
  aspect-ratio: 4/3; object-fit: cover; width: 100%;
}

/* --- Section --- */
.section { padding: clamp(2.5rem, 5vw, 4rem) 0; }
.section--alt { background: var(--surface-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-head { max-width: 70ch; margin: 0 0 2rem; }
.section-head .eyebrow { margin-bottom: 0.4rem; }
.section-more { margin-top: 1.5rem; }

/* --- Hub spokes --- */
.hub-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1rem;
}
@media (max-width: 1024px) { .hub-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .hub-grid { grid-template-columns: 1fr; } }

.hub-card {
  position: relative; background: var(--surface); border: 1px solid var(--line);
  border-radius: 14px; overflow: hidden; display: flex; flex-direction: column;
  text-decoration: none; color: var(--ink);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
  box-shadow: 0 1px 2px rgba(15,23,42,0.04);
}
.hub-card:hover {
  transform: translateY(-2px); border-color: var(--accent); text-decoration: none;
  box-shadow: 0 8px 20px rgba(15,23,42,0.08);
}
.hub-card__media { position: relative; overflow: hidden; }
.hub-card__media::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(0,0,0,0.55) 100%);
}
.hub-card img {
  aspect-ratio: 4/3; object-fit: cover; width: 100%; display: block;
  transition: transform 0.4s ease;
}
.hub-card:hover img { transform: scale(1.03); }
.hub-card__label {
  position: absolute; left: 0.9rem; bottom: 0.7rem; right: 0.9rem;
  color: #fff; font-weight: 700; font-size: 1.05rem; letter-spacing: 0.01em;
  text-shadow: 0 1px 2px rgba(0,0,0,0.35);
  z-index: 1;
}
.hub-card__body { padding: 1.1rem 1.1rem 1.2rem; flex: 1; display: flex; flex-direction: column; }
.hub-card h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }
.hub-card p { color: var(--muted); font-size: 0.95rem; margin: 0 0 0.8rem; }
.hub-card__more { color: var(--accent); font-weight: 600; font-size: 0.9rem; margin-top: auto; }

/* --- Service grid --- */
.service-grid {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
@media (max-width: 880px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .service-grid { grid-template-columns: 1fr; } }

.service-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.1rem; color: var(--ink); text-decoration: none; display: flex; flex-direction: column;
}
.service-card:hover { border-color: var(--accent); text-decoration: none; }
.service-card h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }
.service-card p { color: var(--muted); font-size: 0.93rem; margin: 0 0 0.8rem; flex: 1; }
.service-card__more { color: var(--accent); font-weight: 600; font-size: 0.9rem; }

/* --- Project cards --- */
.project-grid {
  display: grid; gap: 1.1rem;
  grid-template-columns: repeat(3, minmax(0,1fr));
}
@media (max-width: 880px) { .project-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .project-grid { grid-template-columns: 1fr; } }

.project-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
  display: flex; flex-direction: column;
}
.project-card img { aspect-ratio: 4/3; object-fit: cover; width: 100%; }
.project-card__body { padding: 1rem 1rem 1.1rem; flex: 1; display: flex; flex-direction: column; }
.project-card h3 { margin: 0 0 0.3rem; font-size: 1rem; }
.project-card .muted { color: var(--muted); font-size: 0.85rem; margin-bottom: 0.5rem; }
.project-card p { font-size: 0.93rem; margin: 0; }
.tag { display: inline-block; background: var(--surface-2); border: 1px solid var(--line); color: var(--muted); font-size: 0.75rem; padding: 0.15rem 0.55rem; border-radius: 999px; margin-right: 0.3rem; }
.tag--needs-confirm { color: var(--warning); border-color: var(--warning); }

/* --- Backlinks --- */
.backlink-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 0.75rem;
}
@media (max-width: 880px) { .backlink-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .backlink-grid { grid-template-columns: 1fr; } }
.backlink {
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
  padding: 0.85rem 1rem; color: var(--ink); text-decoration: none;
}
.backlink:hover { border-color: var(--accent); text-decoration: none; }
.backlink strong { display: block; color: var(--accent); font-weight: 700; font-size: 0.95rem; }
.backlink span { font-size: 0.85rem; color: var(--muted); }

/* --- Hub & spoke diagram (Home page) --- */
.hub-diagram {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: clamp(1rem, 2.5vw, 1.6rem);
}
.hub-diagram__svgwrap {
  position: relative;
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
}
.hub-diagram svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: 760px;
}
.hub-diagram .hd-link rect,
.hub-diagram .hd-link circle,
.hub-diagram .hd-link ellipse {
  transition: stroke 0.18s ease, fill 0.18s ease;
}
.hub-diagram .hd-link:hover rect,
.hub-diagram .hd-link:focus rect {
  stroke: var(--accent);
  fill: #FFFFFF;
}
.hub-diagram .hd-link:hover ellipse,
.hub-diagram .hd-link:focus ellipse {
  stroke: var(--accent);
}
.hub-diagram .hd-link:hover text,
.hub-diagram .hd-link:focus text {
  fill: var(--accent);
}
.hub-diagram .hd-link:focus { outline: none; }
.hub-diagram .hd-link:focus-visible rect,
.hub-diagram .hd-link:focus-visible ellipse {
  stroke: var(--accent);
  stroke-width: 2.5;
}
/* Mobile fallback (stacked) — hidden on desktop */
.hub-stack { display: none; }
.hub-stack__core {
  background: var(--ink); color: #fff; border-radius: 12px;
  padding: 1rem 1.1rem; text-align: center; margin-bottom: 1rem;
}
.hub-stack__core strong { display: block; font-size: 1.05rem; letter-spacing: 0.02em; }
.hub-stack__core span { display: block; font-size: 0.85rem; color: #DDE3EC; margin-top: 0.2rem; }
.hub-stack__group { margin-bottom: 1rem; }
.hub-stack__label {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--muted); margin: 0 0 0.4rem;
}
.hub-stack__items {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem;
  list-style: none; padding: 0; margin: 0;
}
.hub-stack__items li a {
  display: block; padding: 0.6rem 0.75rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: 8px;
  color: var(--ink); font-size: 0.88rem; line-height: 1.25;
}
.hub-stack__items li a strong { display: block; color: var(--accent); font-size: 0.9rem; font-weight: 700; }
.hub-stack__items li a:hover { border-color: var(--accent); text-decoration: none; }
.hub-stack__items--single { grid-template-columns: 1fr; }
.hub-legend {
  display: flex; flex-wrap: wrap; gap: 1rem 1.5rem;
  font-size: 0.82rem; color: var(--muted);
  margin-top: 1rem; padding-top: 0.9rem; border-top: 1px solid var(--line);
}
.hub-legend span { display: inline-flex; align-items: center; gap: 0.45rem; }
.hub-legend .swatch {
  width: 14px; height: 14px; border-radius: 3px; display: inline-block; border: 1px solid var(--line);
}
.hub-legend .swatch--core { background: var(--ink); border-color: var(--ink); }
.hub-legend .swatch--pillar { background: var(--accent); border-color: var(--accent); }
.hub-legend .swatch--spoke { background: var(--surface); border-color: var(--ink-2); }
@media (max-width: 760px) {
  .hub-diagram__svgwrap { display: none; }
  .hub-stack { display: block; }
  .hub-legend { display: none; }
}
@media (max-width: 420px) {
  .hub-stack__items { grid-template-columns: 1fr; }
}

/* --- Pageheader (non-home) --- */
.page-hero {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(1.5rem, 3vw, 2.5rem);
}
.crumbs { font-size: 0.85rem; color: var(--muted); margin-bottom: 0.7rem; }
.crumbs a { color: var(--muted); }
.crumbs .sep { margin: 0 0.5rem; color: var(--line); }
.crumbs .current { color: var(--ink); }

/* --- Long-form prose --- */
.prose { max-width: 70ch; }
.prose h2 { margin-top: 2rem; }
.prose ul li { margin-bottom: 0.4em; }
.prose blockquote {
  border-left: 3px solid var(--accent); margin: 1.2rem 0; padding: 0.4rem 0 0.4rem 1rem;
  color: var(--muted); font-style: italic;
}

/* --- Forms --- */
.form-grid { display: grid; gap: 0.9rem; max-width: 560px; }
.field { display: flex; flex-direction: column; gap: 0.3rem; }
.field label { font-weight: 600; font-size: 0.9rem; }
.field input, .field textarea, .field select {
  font: inherit; border: 1px solid var(--line); background: var(--surface);
  padding: 0.6rem 0.8rem; border-radius: 8px; color: var(--ink);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent);
}

.callout {
  background: var(--surface-2); border-left: 3px solid var(--accent);
  padding: 1rem 1.1rem; border-radius: 6px; margin: 1.5rem 0;
  font-size: 0.95rem; color: var(--ink-2);
}
.callout--warn { border-color: var(--warning); }

/* --- Footer --- */
.site-footer {
  background: var(--ink); color: #DDE3EC; margin-top: 4rem;
  padding: 3rem 0 1.5rem;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem;
  padding-bottom: 2rem;
}
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h2.footer-heading {
  font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.14em;
  font-weight: 700; color: #fff; margin: 0 0 0.8rem;
}
.footer-brand { font-family: 'Cabinet Grotesk', sans-serif; font-weight: 800; color: #fff; font-size: 1.1rem; }
.footer-tagline { color: #B6BFCF; font-size: 0.9rem; margin-top: 0.4rem; max-width: 40ch; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 0.4rem; }
.footer-links a { color: #DDE3EC; font-size: 0.9rem; }
.footer-links a:hover { color: #fff; }
.footer-legal {
  border-top: 1px solid #1F3A5C; padding-top: 1.5rem; font-size: 0.82rem; color: #94A3B8;
  display: flex; flex-direction: column; gap: 0.6rem;
}

/* --- Misc --- */
.kpi-row {
  display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 1rem;
  margin: 1.5rem 0;
}
@media (max-width: 720px) { .kpi-row { grid-template-columns: repeat(2,1fr); } }
.kpi {
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
  padding: 1rem;
}
.kpi-num { font-family: 'Cabinet Grotesk', sans-serif; font-weight: 800; font-size: 1.6rem; }
.kpi-lbl { font-size: 0.85rem; color: var(--muted); }

/* --- Pillar quick-nav strip (Home page hub-and-spoke section) --- */
.pillar-strip {
  display: flex; flex-wrap: wrap; gap: 0.6rem;
  margin: 0 0 1.4rem;
}
.pillar-strip__btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  background: var(--accent); color: #fff;
  border: 1px solid var(--accent);
  padding: 0.55rem 1rem; border-radius: 999px;
  font-weight: 700; font-size: 0.95rem;
}
.pillar-strip__btn:hover,
.pillar-strip__btn:focus-visible {
  background: var(--accent-hover); border-color: var(--accent-hover);
  color: #fff; text-decoration: none;
}

/* Pillar circles in the hub diagram show an "Open →" caret on hover/focus */
.hub-diagram .hd-link__cta { opacity: 0.75; transition: opacity 0.18s ease; }
.hub-diagram .hd-link--pillar:hover .hd-link__cta,
.hub-diagram .hd-link--pillar:focus-visible .hd-link__cta { opacity: 1; }
.hub-diagram .hd-link--pillar { cursor: pointer; }

/* --- Catalogue / downloads list on service pages --- */
.catalogue-list {
  list-style: none; padding: 0; margin: 0 0 1.5rem;
  display: grid; gap: 0.6rem;
}
.catalogue-list li a {
  display: block; padding: 0.7rem 0.9rem;
  background: var(--surface); border: 1px solid var(--line); border-radius: 8px;
  color: var(--ink);
}
.catalogue-list li a:hover,
.catalogue-list li a:focus-visible {
  border-color: var(--accent); text-decoration: none;
  background: var(--surface-2);
}
.catalogue-list li a strong { color: var(--accent); }
.catalogue-list__file { display: block; font-size: 0.8rem; color: var(--muted); margin-top: 0.2rem; }