/* FT Plus — site stylesheet
   Based on the FT Plus design system from /tmp/designsystem/FT-Plus-Design-System.zip.
   Light-first forest palette. Public copy stays direct and low-boilerplate. */

:root {
  color-scheme: light;

  --paper-0: #ffffff;
  --paper-1: #f5f8fc;
  --paper-2: #eef3f9;
  --paper-3: #e3ebf3;
  --paper-4: #d4dfea;

  --ink-900: #081320;
  --ink-800: #112338;
  --ink-700: #2b4159;
  --ink-600: #41566e;
  --ink-500: #5d7186;
  --ink-400: #8397aa;
  --ink-300: #a9bac8;

  --signal-200: #e7f7ea;
  --signal-400: #5cc16d;
  --signal-500: #36a651;
  --signal-600: #2a8a44;
  --signal-700: #1f6a35;

  --clay-200: #f6e3db;
  --clay-400: #cf6a4a;
  --clay-600: #8f3318;

  --amber-200: #fbeec6;
  --amber-400: #f0d38a;
  --amber-600: #b9831a;

  --green-500: #1aa86a;
  --green-600: #12915a;

  --space-900: #020409;
  --space-850: #050912;
  --space-800: #081626;

  --bg-page: var(--paper-1);
  --bg-sunken: var(--paper-2);
  --surface-card: var(--paper-0);
  --surface-inset: var(--paper-2);
  --surface-overlay: rgba(255, 255, 255, 0.82);

  --text-primary: var(--ink-900);
  --text-body: var(--ink-700);
  --text-muted: var(--ink-500);
  --text-dim: var(--ink-400);
  --text-accent: var(--signal-700);
  --text-link: var(--clay-600);
  --text-onfill: #ffffff;

  --border-subtle: rgba(16, 42, 74, 0.12);
  --border-default: rgba(16, 42, 74, 0.16);
  --border-strong: rgba(42, 138, 68, 0.34);

  --accent: var(--signal-600);
  --accent-fill: var(--signal-400);
  --accent-soft: rgba(92, 193, 109, 0.18);
  --positive: var(--green-600);
  --positive-soft: rgba(26, 168, 106, 0.13);
  --warning: var(--amber-600);
  --warning-soft: rgba(224, 169, 46, 0.16);

  --gradient-signal: linear-gradient(135deg, #62c777, #2a8f4c);
  --gradient-ink: linear-gradient(180deg, var(--space-800), var(--space-900));
  --grid-line: rgba(30, 106, 53, 0.06);
  --focus-ring: rgba(42, 138, 68, 0.42);

  --font-display: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-sans: "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --display-hero: clamp(3rem, 8.4vw, 7rem);
  --display-1: clamp(2.4rem, 4.8vw, 4.5rem);
  --display-2: clamp(1.9rem, 3.4vw, 3rem);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  --shadow-xs: 0 1px 2px rgba(10, 26, 46, 0.06);
  --shadow-sm: 0 1px 2px rgba(10, 26, 46, 0.06), 0 2px 6px rgba(10, 26, 46, 0.06);
  --shadow-md: 0 10px 28px rgba(13, 38, 66, 0.09);
  --shadow-lg: 0 24px 60px rgba(13, 38, 66, 0.12);
  --glow-signal: 0 16px 44px rgba(92, 193, 109, 0.26);

  --container: 1180px;
  --gutter: clamp(20px, 4vw, 40px);
  --grid-size: 44px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 200ms;
}

* { box-sizing: border-box; }

html {
  min-height: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100%;
  margin: 0;
  overflow-x: hidden;
  background: var(--bg-page);
  color: var(--text-body);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% -4%, rgba(180, 74, 44, 0.13), transparent 40%),
    radial-gradient(circle at 92% 6%, rgba(92, 193, 109, 0.12), transparent 42%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  mask-image: linear-gradient(to bottom, black, transparent 70%);
}

img, svg, video { max-width: 100%; display: block; }

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

a:focus-visible,
.button:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 3px;
}

::selection {
  background: var(--accent-soft);
  color: var(--text-primary);
}

.site-header,
.site-footer,
main {
  position: relative;
  z-index: 1;
  width: min(var(--container), calc(100vw - 40px));
  margin-inline: auto;
}

.site-header {
  position: static;
  padding-top: 18px;
}

.site-nav {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 10px 0 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  text-decoration: none;
}

.brand:hover { text-decoration: none; }

/* Brand "+"/"Plus" always carries the green accent. */
.accent-plus { color: var(--accent); }

.brand-mark {
  width: 38px;
  height: 38px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: var(--gradient-signal);
  color: var(--text-onfill);
  font-size: 0.86rem;
  letter-spacing: -0.06em;
  box-shadow: var(--glow-signal);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  padding: 0 14px;
  border-radius: var(--radius-pill);
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
}

.nav-links a:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.mission-section {
  max-width: 920px;
  padding: clamp(56px, 9vw, 112px) 0 clamp(42px, 7vw, 76px);
}

.eyebrow,
.panel-eyebrow {
  margin: 0 0 16px;
  color: var(--text-accent);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.panel-eyebrow {
  display: block;
  margin-bottom: 3px;
  color: var(--text-dim);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
}

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-weight: 700;
  text-wrap: balance;
}

h1 {
  max-width: 12ch;
  margin-bottom: 22px;
  font-size: var(--display-hero);
  line-height: 0.88;
  letter-spacing: -0.06em;
}

h2 {
  margin-bottom: 18px;
  font-size: var(--display-2);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.25rem;
  line-height: 1.12;
  letter-spacing: -0.02em;
}

p { text-wrap: pretty; }

.mission-lede,
.section-heading p,
.contact-details,
.capability-card p,
.upcoming-row p,
footer {
  color: var(--text-muted);
}

.mission-lede {
  max-width: 650px;
  margin-bottom: 28px;
  font-size: clamp(1.12rem, 1.8vw, 1.32rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
}

.button:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.button-primary {
  background: var(--gradient-signal);
  color: var(--text-onfill);
  box-shadow: var(--glow-signal);
}

.button-secondary {
  border-color: var(--border-default);
  background: var(--surface-card);
  color: var(--text-primary);
  box-shadow: var(--shadow-xs);
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 36px;
}

.trust-row span {
  position: relative;
  padding-left: 16px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.trust-row span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-fill);
  transform: translateY(-50%);
}

.overview-panel {
  position: relative;
  overflow: clip;
  padding: 22px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--surface-card);
  box-shadow: var(--shadow-md);
}

.overview-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(circle at 82% 0%, var(--accent-soft), transparent 38%);
}

.overview-panel > * {
  position: relative;
  z-index: 1;
}

.panel-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border-subtle);
}

.panel-head h2 {
  margin: 0;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
}

.status-pill {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.status-pill span {
  position: relative;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--positive);
}

.status-pill span::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--positive);
  animation: ping 1.8s var(--ease-out) infinite;
}

@keyframes ping {
  0% { transform: scale(1); opacity: 0.5; }
  80%, 100% { transform: scale(2.6); opacity: 0; }
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.overview-grid div {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 132px;
  padding: 14px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--surface-inset);
}

.overview-grid span,
.card-index {
  color: var(--text-accent);
  font-family: var(--font-mono);
  font-weight: 700;
}

.overview-grid span {
  font-size: 0.66rem;
  letter-spacing: 0.12em;
}

.overview-grid strong {
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: -0.03em;
}

.overview-grid p {
  margin: 0;
  font-size: 0.875rem;
}

.signal-map {
  position: relative;
  height: 172px;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at 28% 40%, rgba(180, 74, 44, 0.55), transparent 2px),
    radial-gradient(circle at 74% 30%, rgba(92, 193, 109, 0.5), transparent 2px),
    radial-gradient(circle at 56% 74%, rgba(180, 74, 44, 0.5), transparent 2px),
    radial-gradient(circle at 50% 50%, var(--accent-soft), transparent 60%),
    var(--surface-inset);
}

.signal-orbit {
  position: absolute;
  inset: 26px;
  border: 1px solid rgba(180, 74, 44, 0.24);
  border-radius: 50%;
}

.signal-orbit-two {
  inset: 50px 22px;
  border-color: rgba(92, 193, 109, 0.28);
  transform: rotate(-26deg);
}

.signal-node {
  position: absolute;
  min-width: 38px;
  height: 26px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  background: var(--surface-card);
  color: var(--text-accent);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.node-one { left: 13%; top: 22%; }
.node-two { right: 15%; top: 16%; }
.node-three { right: 21%; bottom: 16%; }

.section-block,
.contact-section {
  padding: clamp(54px, 8vw, 92px) 0;
  border-top: 1px solid var(--border-subtle);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(260px, 0.5fr);
  gap: 8px 28px;
  align-items: end;
  margin-bottom: 30px;
}

.section-heading .eyebrow {
  grid-column: 1 / -1;
  margin-bottom: -6px;
}

.section-heading p {
  margin-bottom: 0;
  font-size: 1rem;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.capability-card {
  min-height: 270px;
  padding: 24px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--surface-card);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}

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

.card-index {
  display: inline-flex;
  margin-bottom: 40px;
  font-size: 0.8rem;
}

.capability-card p {
  margin-bottom: 0;
  font-size: 0.875rem;
}

.upcoming-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  margin-top: 24px;
  padding: 24px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--surface-card);
  box-shadow: var(--shadow-sm);
}

.upcoming-row h3 { margin-bottom: 8px; }

.upcoming-row p {
  margin-bottom: 0;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.contact-details {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  font-style: normal;
}

.contact-details span {
  color: var(--text-body);
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  padding-bottom: clamp(80px, 12vw, 130px);
}

.contact-section p {
  max-width: 650px;
  margin-bottom: 0;
}

.channel-pill {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-pill);
  color: var(--text-accent);
  background: var(--accent-soft);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.site-footer div {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.site-footer strong { color: var(--text-primary); }

.footer-code {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (max-width: 980px) {
  .mission-section,
  .section-block,
  .contact-section {
    padding-block: 52px;
  }

  .mission-section { min-height: auto; }
  .capability-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .site-header,
  .site-footer,
  main {
    width: min(100vw - 28px, var(--container));
  }

  .site-footer {
    border-radius: 24px;
    flex-direction: column;
  }

  .site-nav { flex-direction: column; }

  .nav-links { width: 100%; }

  .nav-links a {
    flex: 1;
    justify-content: center;
  }

  .overview-grid { grid-template-columns: 1fr; }

  .button,
  .channel-pill {
    width: 100%;
  }

  h1 { font-size: clamp(3rem, 18vw, 5rem); }
}