/*
SPDX-FileCopyrightText: 2026 Timur Gilmullin and Fuzzy Technologies
SPDX-License-Identifier: Apache-2.0
*/

@import url("../api/latest/en/assets/stylesheets/fonts.css");

:root {
  color-scheme: dark;
  --bg: #07090d;
  --bg-deep: #0b1016;
  --panel: #0b1117;
  --panel-strong: #171b1f;
  --text: #b9dce8;
  --text-strong: #edf7fa;
  --muted: #86aebc;
  --cyan: #55e7ff;
  --pink: #ff5bd8;
  --pink-hot: #ff7ae4;
  --green: #5dff8d;
  --border: #00eaff44;
  --border-soft: #00eaff22;
  --shadow: #00000052;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 4%, #16232a 0, transparent 28rem),
    radial-gradient(circle at 82% 18%, #241325 0, transparent 30rem),
    linear-gradient(135deg, var(--bg-deep), #17191b 55%, var(--bg));
  color: var(--text);
  font-family: "Fira Code", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 15px;
  line-height: 1.6;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(#00eaff08 1px, transparent 1px), linear-gradient(90deg, #00eaff08 1px, transparent 1px);
  background-size: 44px 44px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

main {
  width: min(980px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 1.5rem 0 3rem;
}

a {
  color: var(--pink);
  text-decoration: none;
  transition: color 160ms ease, border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

a:hover { color: var(--pink-hot); }

a:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  padding: 0.55rem 0.75rem;
  border-radius: 6px;
  background: var(--green);
  color: #071009;
  font-weight: 800;
  transform: translateY(-200%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.45rem 0 1.6rem;
}

.site-title {
  color: var(--pink);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -0.04em;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem 1rem;
  font-size: 0.8rem;
  font-weight: 700;
}

.site-nav a { color: var(--muted); }
.site-nav a:hover { color: var(--cyan); }

.project-art {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 2rem;
  border: 1px solid #55e7ff33;
  border-radius: 0.5rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.88fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
  min-height: 0;
  padding: 4rem 0 3rem;
}

.eyebrow,
.section-kicker,
.card-label,
.target-badge {
  color: var(--green);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: var(--cyan);
  line-height: 1.16;
  text-shadow: 0 0 4px #00eaff38;
}

h1 {
  max-width: 40ch;
  margin: 0.65rem 0 1.25rem;
  color: var(--text-strong);
  font-size: clamp(1.5rem, 4vw, 2rem);
  letter-spacing: -0.025em;
}

h2 {
  max-width: 50ch;
  margin: 0.4rem 0 1rem;
  font-size: 1.45rem;
  letter-spacing: -0.045em;
}

h3 { margin: 0.55rem 0 0.7rem; }

.hero-lead {
  max-width: 62ch;
  color: var(--text);
  font-size: clamp(1rem, 2.2vw, 1.18rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 1.5rem 0 1.15rem;
}

.button {
  display: inline-block;
  padding: 0.7rem 0.95rem;
  border: 1px solid #ff5bd866;
  border-radius: 7px;
  background: #171717;
  font-weight: 800;
}

.button:hover {
  border-color: #ff7ae499;
  box-shadow: 0 0 18px #ff7ae429;
  transform: translateY(-1px);
}

.button.primary {
  border-color: var(--pink);
  background: #ff5bd81c;
}

.runtime-note {
  color: var(--muted);
  font-size: 0.78rem;
}

.status-dot {
  display: inline-block;
  width: 0.55rem;
  height: 0.55rem;
  margin-right: 0.35rem;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 9px #5dff8daa;
}

.formula-panel {
  padding: 1.1rem;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(145deg, #111315dd, #15181bd9);
  box-shadow: 0 24px 70px var(--shadow), 0 0 32px #00eaff0e;
}

.formula-panel svg { display: block; width: 100%; height: auto; }
.formula-panel p { margin: 0 0.4rem 0.25rem; color: var(--muted); font-size: 0.78rem; text-align: center; }
.formula-panel text { fill: var(--muted); font-size: 16px; }
.formula-panel .formula { fill: var(--green); font-size: 20px; }
.grid-line { fill: none; stroke: #55e7ff1e; stroke-width: 1; }
.area { fill: url(#area); }
.triangle-line { fill: none; stroke: var(--cyan); stroke-width: 4; }
.gaussian-line { fill: none; stroke: var(--pink); stroke-width: 4; stroke-dasharray: 10 8; }

.motto-line {
  margin: 0 0 5rem;
  color: var(--cyan);
  font-weight: 800;
  text-align: right;
}

section { scroll-margin-top: 1rem; }
section + section { margin-top: 7rem; }

.section-intro { max-width: 72ch; color: var(--muted); }

.card-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.card-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  position: relative;
  min-height: 210px;
  padding: 1.15rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: linear-gradient(145deg, #111315, #15181b);
  box-shadow: 0 8px 24px #00000033;
}

.card h3 {
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--border-soft);
}

.card p { color: var(--muted); }
.card.accent-pink { border-color: #ff5bd866; }
.card.accent-green { border-color: #5dff8d55; }

.target-badge {
  display: inline-block;
  padding: 0.15rem 0.4rem;
  border: 1px solid #5dff8d4d;
  border-radius: 999px;
  background: #5dff8d0d;
}

.truth-panel {
  display: grid;
  grid-template-columns: minmax(230px, 0.7fr) minmax(0, 1.3fr);
  gap: 1.5rem;
  margin-top: 1rem;
  padding: 1.1rem 1.25rem;
  border-left: 3px solid var(--pink);
  border-radius: 8px;
  background: #1c0e17aa;
}

.truth-panel h3 { margin-bottom: 0; }
.truth-panel p { margin: 0; color: var(--text); }

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.6rem;
}

.status-column {
  padding: 1.2rem;
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  background: #0b111799;
}

.status-column[data-status="implemented"] { border-color: #5dff8d55; }
.status-column[data-status="roadmap"] { border-color: #ff5bd855; }

.status-column ul {
  margin: 1rem 0 0;
  padding-left: 1.3rem;
  color: var(--muted);
}

.status-column li + li { margin-top: 0.45rem; }

.status-badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.status-badge.implemented { color: var(--green); }
.status-badge.roadmap { color: var(--pink); }
.status-link { margin-top: 1rem; color: var(--muted); }

.code-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: 1rem;
  margin-top: 1.6rem;
}

pre {
  overflow-x: auto;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  background: #101214;
  box-shadow: 0 0 14px #00eaff12;
  color: var(--text);
  font: inherit;
  font-size: 0.84rem;
}

code { color: var(--green); font-family: inherit; }
.code-sample { min-height: 280px; }

.link-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.link-grid a {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1rem;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  background: #0b111799;
}

.link-grid a:hover { border-color: #ff5bd866; box-shadow: 0 0 18px #ff5bd810; }
.link-grid strong { color: var(--text-strong); }
.link-grid span { color: var(--pink); font-size: 0.8rem; }

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem 1rem;
  margin-top: 7rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border-soft);
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}

.site-footer strong { color: var(--cyan); }
.footer-signature { color: var(--green); font-style: italic; }

::selection { background: var(--pink); color: var(--bg); }

@media (max-width: 840px) {
  .hero { grid-template-columns: 1fr; padding-top: 2.5rem; }
  .hero-copy { max-width: 760px; }
  .formula-panel { max-width: 620px; }
  .card-grid.three { grid-template-columns: 1fr; }
  .card { min-height: 0; }
}

@media (max-width: 680px) {
  main { width: min(100% - 1.5rem, 1120px); padding-top: 0.8rem; }
  .site-header { align-items: flex-start; flex-direction: column; }
  .site-nav { justify-content: flex-start; }
  .hero { min-height: auto; padding-top: 2rem; }
  h1 { font-size: 1.5rem; }
  section + section { margin-top: 5rem; }
  .motto-line { margin-bottom: 4rem; text-align: left; }
  .truth-panel, .status-grid, .code-layout, .link-grid { grid-template-columns: 1fr; }
}

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