/* ============================================================
   Rooted & Wired — hub theme + bespoke styles
   Palette: Soft Sand / Deep Slate / Deep Moss / Warm Taupe / Muted Clay
   Type: Newsreader (display) + Public Sans (body)
   ============================================================ */

:root {
  --ground: #fafcfb;
  --ground-2: #eef0ec;
  --panel: #ffffff;
  --ink: #5f5f5f;
  --ink-2: #8a8a87;
  --accent: #879571;
  --accent-ink: #ad3f3d;
  --accent-soft: #e8ede2;
  --deep: #3a3832;
  --deep-ink: #fafcfb;
  --deep-ink-2: #b8bdb5;
  --line: #dde0da;
  --moss: #879571;
  --taupe: #d1c4b7;

  --font-display: "Newsreader", Georgia, serif;
  --font-body: "Public Sans", -apple-system, "Segoe UI", sans-serif;

  --radius-sm: 3px;
  --radius: 6px;
  --radius-lg: 10px;
}

h1, h2 {
  font-weight: 500;
  letter-spacing: -0.015em;
}

/* ---------- Hub header logo ---------- */

.hub-brand {
  line-height: 1;
  padding: 0;
}

.hub-brand img {
  height: 46px;
  width: auto;
  display: block;
}

/* ---------- Hero ---------- */

.hub-hero {
  position: relative;
  padding-block: clamp(4.5rem, 9vw, 8.5rem) clamp(3.5rem, 7vw, 6.5rem);
  overflow: hidden;
}

.hub-hero__inner {
  max-width: 52rem;
  position: relative;
}

.hub-hero h1 {
  margin-bottom: var(--s-5);
}

.hub-hero .support-line {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--fs-lg);
  color: var(--moss);
  margin-bottom: var(--s-5);
}

.hub-hero .lede {
  max-width: 38rem;
  margin-bottom: var(--s-6);
}

/* ---------- Signal thread (identity motif) ---------- */

.thread {
  position: absolute;
  left: calc(50% + 36rem);
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    transparent,
    var(--accent) 8%,
    var(--accent) 70%,
    var(--taupe) 100%
  );
  opacity: 0.55;
  pointer-events: none;
}

@media (max-width: 78rem) {
  .thread { display: none; }
}

.thread::before,
.thread::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.thread::before { top: 18%; }
.thread::after { top: 62%; background: var(--moss); }

/* Decorative arcs in hero corner */
.hero-arcs {
  position: absolute;
  right: calc(var(--gutter) * -1);
  top: 50%;
  transform: translateY(-50%);
  width: clamp(220px, 26vw, 380px);
  opacity: 0.9;
  pointer-events: none;
}

@media (max-width: 62rem) {
  .hero-arcs { display: none; }
}

.hub-hero .container {
  position: relative;
}

/* ---------- Fiction disclosure ---------- */

.fiction-note {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 999px;
  padding: 0.45rem 1.1rem;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--ink-2);
  margin-bottom: var(--s-6);
}

.fiction-note::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ---------- Concept cards ---------- */

.concept-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: clamp(1rem, 2vw, 1.75rem);
}

.concept-card {
  grid-column: span 2;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}

.concept-card__main {
  display: flex;
  flex-direction: column;
  flex: 1;
  text-decoration: none;
  color: var(--ink);
}

.concept-card:nth-child(1),
.concept-card:nth-child(2) {
  grid-column: span 3;
}

@media (max-width: 60rem) {
  .concept-card,
  .concept-card:nth-child(1),
  .concept-card:nth-child(2) {
    grid-column: span 3;
  }
}

@media (max-width: 40rem) {
  .concept-card,
  .concept-card:nth-child(1),
  .concept-card:nth-child(2) {
    grid-column: span 6;
  }
}

.concept-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
}

.concept-card__art {
  aspect-ratio: 16 / 8;
  display: grid;
  place-items: center;
  border-bottom: 3px solid var(--cc-accent, var(--accent));
  background: var(--cc-bg, var(--ground-2));
}

.concept-card__art svg {
  width: 46%;
  max-width: 190px;
}

.concept-card__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  align-self: stretch;
  justify-self: stretch;
}

.concept-card__body {
  padding: var(--s-5) var(--s-5) var(--s-4);
  flex: 1;
}

.concept-card__body .chip {
  margin-bottom: var(--s-3);
  background: var(--ground-2);
  color: var(--ink-2);
}

.concept-card h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--s-2);
}

.concept-card p {
  font-size: var(--fs-sm);
  color: var(--ink-2);
  margin: 0;
}

.concept-card__links {
  display: flex;
  gap: var(--s-5);
  padding: var(--s-3) var(--s-5) var(--s-5);
  font-size: var(--fs-sm);
  font-weight: 700;
}

.concept-card__links a {
  color: var(--accent-ink);
  text-decoration: none;
}

.concept-card__links a + a {
  color: var(--ink-2);
  font-weight: 600;
}

.concept-card__links a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- Pillars ---------- */

.pillar {
  border-top: 2px solid var(--moss);
  padding-top: var(--s-4);
}

.pillar h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--s-2);
}

.pillar p {
  font-size: var(--fs-sm);
  color: var(--ink-2);
  margin: 0;
}

/* ---------- Why infrastructure ---------- */

.why-grid {
  display: grid;
  grid-template-columns: 5fr 6fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

@media (max-width: 56rem) {
  .why-grid { grid-template-columns: 1fr; }
}

.why-grid .takeaway {
  border-left-color: var(--moss);
  margin-bottom: var(--s-6);
}

.why-grid .takeaway:last-child {
  margin-bottom: 0;
}

blockquote.pull {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--fs-xl);
  line-height: 1.35;
  color: var(--moss);
  border-left: 3px solid var(--accent);
  margin: var(--s-6) 0 0;
  padding-left: var(--s-5);
}

/* ---------- Connect band ---------- */

.connect-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

@media (max-width: 56rem) {
  .connect-band { grid-template-columns: 1fr; }
}

.section--deep .form-field input {
  background: color-mix(in srgb, var(--deep-ink) 8%, var(--deep));
  border-color: color-mix(in srgb, var(--deep-ink) 25%, var(--deep));
  color: var(--deep-ink);
}

.section--deep .form-field input::placeholder {
  color: var(--deep-ink-2);
}

.section--deep .form-field label {
  color: var(--deep-ink);
}

.section--deep .form-note {
  color: var(--deep-ink-2);
}

.section--deep .form-success {
  background: color-mix(in srgb, var(--deep-ink) 10%, var(--deep));
  border-color: var(--accent);
  color: var(--deep-ink);
}