/*
 * Runark landing — NEO-BRUTALIST.
 * Graphite base, hot-pink + lime fluor, oversized type, hard offset shadows,
 * thick borders, monospace data, marquees. Scoped under .runark-landing so the
 * raw theme never leaks into the (still light) internal app. See config/design-system.md.
 */

.runark-landing {
  /* Surfaces */
  --rk-bg: #18181C;
  --rk-surface-1: #1E1E22;
  --rk-surface-2: #26262B;
  --rk-surface-3: #323238;
  --rk-border: #34343C;

  /* Ink */
  --rk-text: #FAFAFA;
  --rk-text-muted: #A8A8B2;
  --rk-text-faint: #78787F;
  --rk-ink: #0C0C0E; /* text on pink/lime blocks */

  /* Brand */
  --rk-pink: #F43F8E;
  --rk-pink-deep: #DB2777;
  --rk-lime: #D4FF3F;

  /* Brutalist primitives */
  --rk-line: 2px solid var(--rk-text);
  --rk-line-pink: 2px solid var(--rk-pink);
  --rk-shadow-pink: 7px 7px 0 0 var(--rk-pink);
  --rk-shadow-lime: 7px 7px 0 0 var(--rk-lime);
  --rk-shadow-ink: 7px 7px 0 0 var(--rk-text);

  --rk-display: "Space Grotesk", sans-serif;
  --rk-mono: "Space Mono", ui-monospace, monospace;
  --rk-text-font: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;

  background-color: var(--rk-bg);
  color: var(--rk-text);
  font-family: var(--rk-text-font);
  -webkit-font-smoothing: antialiased;
  min-block-size: 100dvh;
  overflow-x: hidden;
  /* faint engineering grid */
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 48px 48px;
}

.runark-landing *,
.runark-landing *::before,
.runark-landing *::after { box-sizing: border-box; }

.runark-landing ::selection { background-color: var(--rk-lime); color: var(--rk-ink); }

.rk-container {
  inline-size: 100%;
  max-inline-size: 78rem;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.rk-mono {
  font-family: var(--rk-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---------------------------------------------------------------- Marquee */

.rk-marquee {
  border-block: var(--rk-line);
  background: var(--rk-pink);
  color: var(--rk-ink);
  overflow: hidden;
  white-space: nowrap;
}

.rk-marquee--lime { background: var(--rk-lime); }

.rk-marquee-track {
  display: inline-flex;
  align-items: center;
  gap: 2.5rem;
  padding-block: 0.55rem;
  font-family: var(--rk-mono);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  animation: rk-marquee 26s linear infinite;
}

.rk-marquee--rev .rk-marquee-track { animation-direction: reverse; }

.rk-marquee:hover .rk-marquee-track { animation-play-state: paused; }

.rk-marquee-track span { display: inline-flex; align-items: center; gap: 2.5rem; }
.rk-marquee-track b { font-size: 1.1rem; line-height: 0; }

@keyframes rk-marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------------------------------------------------------------- Buttons */

.rk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--rk-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.9rem 1.6rem;
  border: var(--rk-line);
  background: var(--rk-surface-2);
  color: var(--rk-text);
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  box-shadow: var(--rk-shadow-ink);
  transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.1s ease;
}

.rk-btn svg { inline-size: 1.05em; block-size: 1.05em; }

.rk-btn:hover { transform: translate(-3px, -3px); box-shadow: 10px 10px 0 0 var(--rk-text); }
.rk-btn:active { transform: translate(2px, 2px); box-shadow: 3px 3px 0 0 var(--rk-text); }

.rk-btn--pink {
  background: var(--rk-pink);
  color: var(--rk-ink);
  border-color: var(--rk-ink);
  box-shadow: var(--rk-shadow-ink);
}
.rk-btn--pink:hover { box-shadow: 10px 10px 0 0 var(--rk-lime); border-color: var(--rk-ink); }

.rk-btn--lime {
  background: var(--rk-lime);
  color: var(--rk-ink);
  border-color: var(--rk-ink);
}
.rk-btn--lime:hover { box-shadow: 10px 10px 0 0 var(--rk-pink); }

.rk-btn--sm { padding: 0.55rem 1rem; box-shadow: 4px 4px 0 0 var(--rk-ink); }
.rk-btn--sm:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 0 var(--rk-lime); }

/* ---------------------------------------------------------------- Nav */

.rk-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-block-end: var(--rk-line);
  background: var(--rk-bg);
}

.rk-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  block-size: 4rem;
}

.rk-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--rk-text);
}

.rk-logo-mark { inline-size: 2rem; block-size: 2rem; }

.rk-logo-text {
  font-family: var(--rk-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

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

.rk-hero { position: relative; padding-block: clamp(2.5rem, 6vw, 5rem) clamp(2.5rem, 5vw, 4rem); }

.rk-hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: end;
}

.rk-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--rk-lime);
  font-family: var(--rk-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.rk-eyebrow::before { content: "//"; color: var(--rk-pink); }

.rk-headline {
  font-family: var(--rk-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(3rem, 9.5vw, 8rem);
  line-height: 0.88;
  letter-spacing: -0.04em;
  margin: 1.25rem 0 0;
}

.rk-headline .rk-hl-stroke {
  color: transparent;
  -webkit-text-stroke: 2px var(--rk-lime);
  text-stroke: 2px var(--rk-lime);
}

.rk-headline .rk-hl-pink {
  background: var(--rk-pink);
  color: var(--rk-ink);
  padding: 0 0.15em;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.rk-lead {
  margin: 1.75rem 0 0;
  color: var(--rk-text-muted);
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.55;
  max-inline-size: 33rem;
}

.rk-cta-row { display: flex; flex-wrap: wrap; gap: 1.25rem; margin-top: 2rem; }

.rk-data-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 2.5rem;
  border: var(--rk-line);
  background: var(--rk-surface-1);
}

.rk-data-cell {
  flex: 1 1 0;
  min-inline-size: 8rem;
  padding: 1rem 1.25rem;
  border-inline-end: var(--rk-line);
}
.rk-data-cell:last-child { border-inline-end: 0; }

.rk-data-index { font-family: var(--rk-mono); font-size: 0.65rem; color: var(--rk-pink); }
.rk-data-num {
  font-family: var(--rk-display);
  font-weight: 700;
  font-size: 1.6rem;
  margin-top: 0.2rem;
}
.rk-data-label { font-family: var(--rk-mono); font-size: 0.62rem; color: var(--rk-text-faint); text-transform: uppercase; margin-top: 0.15rem; }

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

.rk-mockup {
  background: var(--rk-surface-2);
  border: var(--rk-line);
  box-shadow: var(--rk-shadow-pink);
  padding: 1.25rem;
  transform: rotate(-1.5deg);
}

.rk-mockup-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.9rem;
  margin-bottom: 1.1rem;
  border-bottom: var(--rk-line);
}

.rk-mockup-title { font-family: var(--rk-mono); font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; }

.rk-mockup-live {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--rk-lime);
  color: var(--rk-ink);
  border: 1.5px solid var(--rk-ink);
  font-family: var(--rk-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.15rem 0.45rem;
}
.rk-mockup-live::before {
  content: "";
  inline-size: 6px; block-size: 6px;
  background: var(--rk-ink);
  border-radius: 999px;
  animation: rk-pulse 1.4s steps(2) infinite;
}
@keyframes rk-pulse { 50% { opacity: 0; } }

.rk-pb-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: var(--rk-line); }

.rk-pb-card {
  padding: 0.85rem 1rem;
  border-inline-end: var(--rk-line);
  border-block-end: var(--rk-line);
}
.rk-pb-card:nth-child(2n) { border-inline-end: 0; }
.rk-pb-card:nth-last-child(-n+2) { border-block-end: 0; }

.rk-pb-dist { font-family: var(--rk-mono); font-size: 0.62rem; text-transform: uppercase; color: var(--rk-text-faint); }
.rk-pb-time { font-family: var(--rk-display); font-size: 1.5rem; font-weight: 700; margin-top: 0.15rem; }
.rk-pb-pace { font-family: var(--rk-mono); font-size: 0.68rem; color: var(--rk-pink); margin-top: 0.1rem; }

.rk-predict {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  background: var(--rk-pink);
  color: var(--rk-ink);
  border: var(--rk-line);
  padding: 0.7rem 1rem;
}
.rk-predict-label { font-family: var(--rk-mono); font-size: 0.7rem; font-weight: 700; text-transform: uppercase; }
.rk-predict-badge { font-family: var(--rk-display); font-weight: 700; font-size: 1.15rem; }

/* ---------------------------------------------------------------- Features */

.rk-section { padding-block: clamp(3rem, 7vw, 5.5rem); }
.rk-section--alt { background: var(--rk-surface-1); border-block: var(--rk-line); }

.rk-section-head { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }

.rk-section-label { font-family: var(--rk-mono); font-size: 0.72rem; color: var(--rk-pink); text-transform: uppercase; letter-spacing: 0.08em; margin: 0; }

.rk-section-heading {
  font-family: var(--rk-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin: 0.5rem 0 0;
  max-inline-size: 22ch;
}

.rk-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 2.5rem;
  border: var(--rk-line);
}

.rk-card {
  position: relative;
  background: var(--rk-bg);
  padding: 2rem 1.75rem;
  border-inline-end: var(--rk-line);
  transition: background-color 0.12s ease;
}
.rk-card:last-child { border-inline-end: 0; }
.rk-card:hover { background: var(--rk-surface-2); }

.rk-card-index { font-family: var(--rk-mono); font-size: 0.8rem; color: var(--rk-pink); }

.rk-feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 3rem; block-size: 3rem;
  margin: 1.25rem 0;
  border: var(--rk-line);
  background: var(--rk-lime);
  color: var(--rk-ink);
}
.rk-card:nth-child(2) .rk-feature-icon { background: var(--rk-pink); }
.rk-feature-icon svg { inline-size: 1.5rem; block-size: 1.5rem; }

.rk-feature-title { font-family: var(--rk-display); font-size: 1.4rem; font-weight: 700; text-transform: uppercase; letter-spacing: -0.02em; margin: 0; }
.rk-feature-body { margin: 0.6rem 0 0; color: var(--rk-text-muted); line-height: 1.55; font-size: 0.95rem; }

/* ---------------------------------------------------------------- CTA */

.rk-cta-panel {
  background: var(--rk-pink);
  color: var(--rk-ink);
  border: var(--rk-line);
  box-shadow: var(--rk-shadow-lime);
  padding: clamp(2.5rem, 6vw, 4.5rem) 1.5rem;
  text-align: center;
}

.rk-cta-heading {
  font-family: var(--rk-display);
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.03em;
  line-height: 0.92;
  margin: 0;
}

.rk-cta-desc { margin: 1rem auto 2rem; max-inline-size: 34rem; font-family: var(--rk-mono); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.02em; }

.rk-btn--ink { background: var(--rk-ink); color: var(--rk-text); border-color: var(--rk-ink); box-shadow: 7px 7px 0 0 var(--rk-lime); }
.rk-btn--ink:hover { box-shadow: 10px 10px 0 0 var(--rk-lime); }

/* ---------------------------------------------------------------- Footer */

.rk-footer { border-block-start: var(--rk-line); padding-block: 2.25rem; }
.rk-footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.rk-footer-text { margin: 0; color: var(--rk-text-faint); font-family: var(--rk-mono); font-size: 0.72rem; text-transform: uppercase; }

/* ---------------------------------------------------------------- Responsive */

@media (width < 60rem) {
  .rk-hero-inner { grid-template-columns: 1fr; align-items: start; }
  .rk-hero-visual { order: -1; }
  .rk-features-grid { grid-template-columns: 1fr; }
  .rk-card { border-inline-end: 0; border-block-end: var(--rk-line); }
  .rk-card:last-child { border-block-end: 0; }
}

@media (width < 34rem) {
  .rk-data-cell { border-inline-end: 0; border-block-end: var(--rk-line); flex-basis: 100%; }
  .rk-data-cell:last-child { border-block-end: 0; }
  .rk-pb-grid { grid-template-columns: 1fr; }
  .rk-pb-card { border-inline-end: 0; }
  .rk-pb-card:nth-last-child(-n+2):not(:last-child) { border-block-end: var(--rk-line); }
}

@media (prefers-reduced-motion: reduce) {
  .rk-marquee-track { animation: none; }
}