/* ==========================================================================
   SAMMES — Components
   ========================================================================== */

/* --- Brand mark (The Node) ----------------------------------------------- */
.mark {
  --mark-size: 1.5rem;
  display: inline-grid;
  place-items: center;
  width: var(--mark-size);
  height: var(--mark-size);
  color: var(--accent);
  flex: none;
}
.mark svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}
.mark--paper { color: var(--paper); }
.mark--ink { color: var(--ink); }

/* Contextual sizing / colour — keeps the mark partial variable-free. */
.site-nav__brand .mark {
  --mark-size: 1.35rem;
  color: var(--paper);
}
.hero__mark .mark {
  --mark-size: 2.5rem;
}
.site-footer__mark .mark {
  --mark-size: 1.6rem;
  color: var(--paper);
}

/* --- Wordmark ------------------------------------------------------------ */
.wordmark {
  font-family: var(--font-display);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 0.8;
  white-space: nowrap;
}
.wordmark--display {
  font-size: var(--fs-display);
  letter-spacing: -0.02em;
  display: block;
  width: 100%;
  text-align: center;
}
.wordmark--nav {
  font-size: 1rem;
  letter-spacing: 0.22em;
  font-weight: 700;
}

/* --- Navigation ---------------------------------------------------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: color-mix(in srgb, var(--ink) 82%, transparent);
  backdrop-filter: blur(12px) saturate(1.4);
  -webkit-backdrop-filter: blur(12px) saturate(1.4);
  border-bottom: var(--rule) solid var(--line);
  color: var(--paper);
  --line: rgba(244, 243, 239, 0.14);
}
@supports not (backdrop-filter: blur(1px)) {
  .site-nav {
    background: var(--ink);
  }
}
.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: var(--meta-bar-h);
}
.site-nav__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--paper);
}
.site-nav__menu {
  display: flex;
  gap: var(--space-lg);
  align-items: center;
}
.site-nav__link {
  font-size: var(--fs-micro);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-micro);
  color: var(--paper);
  opacity: 0.72;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  opacity: 1;
}
.site-nav__link[aria-current="page"] {
  text-decoration: underline;
  text-underline-offset: 0.35em;
  text-decoration-thickness: 1px;
}
.site-nav__meta {
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-micro);
  text-transform: uppercase;
  opacity: 0.55;
}
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-micro);
  letter-spacing: var(--tracking-micro);
  text-transform: uppercase;
  color: var(--paper);
}
.nav-toggle__bars {
  display: grid;
  gap: 4px;
  width: 1.125rem;
}
.nav-toggle__bars i {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast);
}
@media (max-width: 860px) {
  .site-nav__menu { display: none; }
  .nav-toggle { display: inline-flex; }
  .site-nav.is-open .site-nav__menu {
    display: flex;
    position: absolute;
    inset: 100% 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg) var(--gutter);
    background: var(--ink);
    border-bottom: var(--rule) solid var(--line);
  }
  .site-nav.is-open .nav-toggle__bars i:nth-child(1) { transform: translateY(5px) rotate(45deg); }
  .site-nav.is-open .nav-toggle__bars i:nth-child(2) { opacity: 0; }
  .site-nav.is-open .nav-toggle__bars i:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
}

/* --- Buttons ------------------------------------------------------------- */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--fg);
  --btn-bd: var(--line-strong);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: 0.85em 1.4em;
  font-size: var(--fs-label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  color: var(--btn-fg);
  background: var(--btn-bg);
  border: var(--rule) solid var(--btn-bd);
  border-radius: var(--radius-pill);
  transition:
    background var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}
.btn:hover {
  transform: translateY(-2px);
}
.btn--accent {
  --btn-bg: var(--accent);
  --btn-fg: var(--on-accent);
  --btn-bd: var(--accent);
}
.btn--solid {
  --btn-bg: var(--fg);
  --btn-fg: var(--bg);
  --btn-bd: var(--fg);
}
.btn--ghost:hover {
  --btn-bd: var(--fg);
}
.btn--sm {
  padding: 0.6em 1em;
  font-size: var(--fs-micro);
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
}

/* Circular arrow button */
.arrow-btn {
  --size: 3.25rem;
  display: inline-grid;
  place-items: center;
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  border: var(--rule) solid var(--line-strong);
  color: var(--fg);
  transition:
    background var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}
.arrow-btn svg {
  width: 1.1rem;
  height: 1.1rem;
  transition: transform var(--dur) var(--ease-out);
}
.arrow-btn:hover {
  background: var(--accent);
  color: var(--on-accent);
  border-color: var(--accent);
  transform: scale(1.04);
}
.arrow-btn:hover svg {
  transform: translate(2px, -2px);
}
.arrow-btn--sm { --size: 2.5rem; }
.arrow-btn--lg { --size: 5rem; }

/* --- Crop-bracket frame -------------------------------------------------- */
.crop {
  position: relative;
}
.crop::before,
.crop::after {
  content: "";
  position: absolute;
  width: 0.75rem;
  height: 0.75rem;
  border: var(--rule) solid var(--line-strong);
  pointer-events: none;
}
.crop::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}
.crop::after {
  right: -1px;
  bottom: -1px;
  border-left: 0;
  border-top: 0;
}

/* --- Inline image chip (floats inside editorial text) -------------------- */
.chip {
  display: inline-block;
  vertical-align: -0.24em;
  width: 1.2em;
  height: 1.2em;
  object-fit: cover;
  margin: 0 0.22em;
  filter: grayscale(1) contrast(1.05);
}
.chip--accent {
  filter: none;
}

/* --- App / product block ------------------------------------------------- */
.app-block {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: var(--space-md);
  min-height: clamp(24rem, 46vw, 40rem);
  padding: var(--space-lg);
  background: var(--accent);
  color: var(--on-accent);
  overflow: hidden;
}
.app-block__index {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  opacity: 0.8;
}
.app-block__name {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 1rem + 5vw, 4.5rem);
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.app-block__desc {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: var(--fs-lead);
  line-height: 1.25;
  max-width: 26ch;
  margin-top: var(--space-xs);
}
.app-block__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: var(--rule) solid color-mix(in srgb, var(--on-accent) 28%, transparent);
}
.app-block__art {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  opacity: 0.16;
  pointer-events: none;
}
.app-block__art img {
  width: min(78%, 17rem);
  height: auto;
}
.app-block > *:not(.app-block__art) {
  position: relative;
  z-index: 1;
}
.app-card {
  display: block;
  color: inherit;
  transition: transform var(--dur) var(--ease-out);
}
.app-card:hover {
  transform: translateY(-6px);
}

/* --- Status badge -------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  padding: 0.35em 0.7em;
  border: var(--rule) solid currentColor;
  border-radius: var(--radius-pill);
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  opacity: 0.85;
}
.badge__dot {
  width: 0.4em;
  height: 0.4em;
  border-radius: 50%;
  background: currentColor;
}
.badge--live .badge__dot {
  animation: pulse 2.4s var(--ease-in-out) infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.7); }
}
@media (prefers-reduced-motion: reduce) {
  .badge--live .badge__dot { animation: none; }
}

/* --- Stat / numeral ------------------------------------------------------ */
.stat {
  display: grid;
  gap: var(--space-2xs);
  border-top: var(--rule) solid var(--line);
  padding-top: var(--space-sm);
}
.stat__value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 1.2rem + 3.4vw, 4rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}
.stat__label {
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tracking-micro);
  color: var(--muted);
  max-width: 22ch;
}

/* --- Editorial name list (team) ------------------------------------------ */
.name-list {
  display: grid;
  gap: 0.1em;
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(1.25rem, 0.9rem + 1.4vw, 2.25rem);
  line-height: 1.15;
}
.name-list li {
  color: color-mix(in srgb, var(--fg) 42%, transparent);
  transition: color var(--dur-fast) var(--ease-out);
}
.name-list li:hover,
.name-list li[data-active] {
  color: var(--fg);
}
.name-list .role {
  opacity: 0.6;
}

/* --- Timeline / roadmap -------------------------------------------------- */
.timeline {
  display: grid;
  gap: 0;
}
.timeline__row {
  display: grid;
  grid-template-columns: 8rem 1fr auto;
  gap: var(--space-md);
  align-items: baseline;
  padding-block: var(--space-md);
  border-top: var(--rule) solid var(--line);
}
.timeline__row:last-child {
  border-bottom: var(--rule) solid var(--line);
}
.timeline__when {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.06em;
  color: var(--muted);
}
.timeline__what {
  font-size: var(--fs-lead);
  font-weight: 500;
}
@media (max-width: 640px) {
  .timeline__row {
    grid-template-columns: 1fr;
    gap: var(--space-2xs);
  }
}

/* --- Technical diagram (crosshair + circle) ------------------------------ */
.diagram {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 1;
  color: var(--line-strong);
}
.diagram__ring,
.diagram__ring--sm {
  position: absolute;
  border: var(--rule) solid currentColor;
  border-radius: 50%;
}
.diagram__ring { width: 68%; height: 68%; }
.diagram__ring--sm { width: 34%; height: 34%; }
.diagram__axis {
  position: absolute;
  background: currentColor;
}
.diagram__axis--h { width: 100%; height: var(--rule); }
.diagram__axis--v { height: 100%; width: var(--rule); }
.diagram__node {
  position: relative;
  z-index: 2;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  background: var(--accent);
  color: var(--on-accent);
  display: grid;
  place-items: center;
  font-size: 1rem;
  transition: transform var(--dur) var(--ease-out);
}
.diagram__node:hover {
  transform: scale(1.08);
}
.diagram__tick {
  position: absolute;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* --- Marquee ------------------------------------------------------------- */
.marquee {
  overflow: hidden;
  border-top: var(--rule) solid var(--line);
  border-bottom: var(--rule) solid var(--line);
  padding-block: var(--space-sm);
  white-space: nowrap;
}
.marquee__track {
  display: inline-flex;
  gap: var(--space-xl);
  padding-right: var(--space-xl);
  animation: marquee 38s linear infinite;
}
.marquee:hover .marquee__track {
  animation-play-state: paused;
}
.marquee__item {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 0.9rem + 1.4vw, 2.5rem);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xl);
}
.marquee__item::after {
  content: "";
  width: 0.5rem;
  height: 0.5rem;
  background: var(--accent);
  border-radius: 50%;
  flex: none;
}
@keyframes marquee {
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
}

/* --- Forms --------------------------------------------------------------- */
.form {
  display: grid;
  gap: var(--space-sm);
  max-width: 34rem;
}
.field {
  display: grid;
  gap: var(--space-2xs);
}
.field label {
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tracking-micro);
  color: var(--muted);
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.85em 0.9em;
  background: transparent;
  color: var(--fg);
  border: var(--rule) solid var(--line-strong);
  border-radius: 0;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
  outline: none;
}
.field input::placeholder,
.field textarea::placeholder {
  color: var(--muted);
  opacity: 0.7;
}
.form__note {
  font-size: var(--fs-micro);
  color: var(--muted);
  letter-spacing: 0.02em;
}
.form__status {
  font-size: var(--fs-label);
  min-height: 1.4em;
}
.form__status[data-state="ok"] { color: var(--intel); }
.form__status[data-state="err"] { color: var(--social); }

/* --- Legal chrome -------------------------------------------------------- */
.legal-hero {
  padding-block: var(--space-xl) var(--space-lg);
  border-bottom: var(--rule) solid var(--line);
}
.legal-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
  padding-top: var(--space-sm);
  border-top: var(--rule) solid var(--line);
}
.prose {
  max-width: var(--measure);
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: var(--fs-body);
  line-height: 1.65;
  color: color-mix(in srgb, var(--fg) 88%, transparent);
}
.prose > * + * { margin-top: 1.1em; }
.prose h2 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 1.1rem + 1.1vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-top: 2em;
  padding-top: 0.6em;
  border-top: var(--rule) solid var(--line);
}
.prose h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  margin-top: 1.8em;
}
.prose ul,
.prose ol {
  padding-left: 1.2em;
  list-style: revert;
}
.prose li + li { margin-top: 0.4em; }
.prose li::marker { color: var(--accent); }
.prose a {
  color: var(--fg);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
  text-decoration-color: color-mix(in srgb, var(--accent) 70%, transparent);
}
.prose a:hover { text-decoration-color: var(--accent); }
.prose strong { font-weight: 600; }
.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  padding: 0.15em 0.35em;
  background: color-mix(in srgb, var(--fg) 8%, transparent);
}
.prose table {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  border-top: var(--rule) solid var(--line-strong);
}
.prose th,
.prose td {
  text-align: left;
  padding: 0.6em 0.8em 0.6em 0;
  border-bottom: var(--rule) solid var(--line);
  vertical-align: top;
}
.prose th {
  font-size: var(--fs-micro);
  text-transform: uppercase;
  letter-spacing: var(--tracking-micro);
  color: var(--muted);
  font-weight: 600;
}
.callout {
  border-left: 2px solid var(--accent);
  padding: var(--space-sm) var(--space-md);
  background: color-mix(in srgb, var(--accent) 7%, transparent);
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  line-height: 1.6;
}
.toc {
  display: grid;
  gap: var(--space-2xs);
  border-top: var(--rule) solid var(--line);
  padding-top: var(--space-sm);
}
.toc a {
  font-size: var(--fs-label);
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  color: var(--muted);
  transition: color var(--dur-fast);
}
.toc a:hover { color: var(--accent); }

/* --- Legal index cards --------------------------------------------------- */
.doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: 0;
  border-top: var(--rule) solid var(--line);
  border-left: var(--rule) solid var(--line);
}
.doc-card {
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-md);
  border-right: var(--rule) solid var(--line);
  border-bottom: var(--rule) solid var(--line);
  min-height: 11rem;
  align-content: space-between;
  transition: background var(--dur-fast) var(--ease-out);
}
.doc-card:hover {
  background: color-mix(in srgb, var(--accent) 8%, transparent);
}
.doc-card__no {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--muted);
}
.doc-card__title {
  font-size: var(--fs-lead);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.doc-card__desc {
  font-size: var(--fs-sm);
  color: var(--muted);
  line-height: 1.45;
}

/* --- Footer -------------------------------------------------------------- */
.site-footer {
  position: relative;
  border-top: var(--rule) solid var(--line);
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
}
.site-footer__grid {
  padding-block: var(--space-xl) var(--space-lg);
}
.site-footer__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: var(--space-lg);
  padding-bottom: var(--space-xl);
  border-bottom: var(--rule) solid var(--line);
}
.footer-col h2 {
  font-size: var(--fs-micro);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-micro);
  color: var(--grey-400);
  margin-bottom: var(--space-sm);
}
.footer-col ul {
  display: grid;
  gap: 0.45em;
}
.footer-col a {
  font-size: var(--fs-sm);
  color: var(--grey-200);
  transition: color var(--dur-fast);
}
.footer-col a:hover { color: var(--paper); }
.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: space-between;
  align-items: baseline;
  padding-top: var(--space-md);
  font-size: var(--fs-micro);
  color: var(--grey-500);
  text-transform: uppercase;
  letter-spacing: var(--tracking-micro);
}
.site-footer__wordmark {
  display: block;
  width: 100%;
  padding-block: var(--space-md) 0;
  line-height: 0.72;
  overflow: hidden;
}
.site-footer__wordmark span {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(3rem, 20vw, 21rem);
  letter-spacing: -0.03em;
  text-align: center;
  color: var(--paper);
}

/* --- Callout band (investor CTA) ----------------------------------------- */
.cta-band {
  display: grid;
  gap: var(--space-lg);
  padding-block: var(--space-2xl);
}
@media (min-width: 900px) {
  .cta-band {
    grid-template-columns: 1.2fr 1fr;
    align-items: end;
  }
}

/* --- Utility ------------------------------------------------------------- */
.stack > * + * { margin-top: var(--space-md); }
.stack-sm > * + * { margin-top: var(--space-sm); }
.stack-xs > * + * { margin-top: var(--space-2xs); }
.row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: baseline;
}
.between {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: baseline;
  justify-content: space-between;
}
.hairline { border-top: var(--rule) solid var(--line); }
.center { text-align: center; }
.measure { max-width: var(--measure); }
.measure-tight { max-width: var(--measure-tight); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.pt-md { padding-top: var(--space-md); }
.relative { position: relative; }

/* Placeholder marker — remove when real content lands. */
.ph {
  border-bottom: 1px dotted color-mix(in srgb, var(--fg) 55%, transparent);
  opacity: 0.62;
}