/* Bitwrite — marketing page styles
 * Order: reset → page → header → hero → footer → responsive
 * Tokens from tokens.css. */

@import url('tokens.css?v=2');

@import url('https://fonts.googleapis.com/css2?family=VT323&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ─── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-mono);
  font-size: var(--fs-body);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }

/* ─── Grain texture ─────────────────────────────────────────── */
body.no-grain .page::before { display: none; }
.page::before {
  content: "";
  position: fixed; inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.012) 0, transparent 60%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.010) 0, transparent 60%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence baseFrequency='0.85' numOctaves='2' seed='4'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.06 0'/></filter><rect width='200' height='200' filter='url(%23n)'/></svg>");
  pointer-events: none;
  z-index: 0;
}

/* ─── Page shell ────────────────────────────────────────────── */
.page {
  position: relative;
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  z-index: 1;
}

/* ─── Header ────────────────────────────────────────────────── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--pad-page-y) var(--pad-page-x);
  border-bottom: 1px solid var(--hairline);
  position: relative;
  z-index: 2;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--gap-sm);
  text-decoration: none;
  color: var(--fg);
}
.brand .logo-mark {
  display: block;
  width: 32px;
  height: 32px;
  flex: none;
}
.brand .wordmark {
  font-family: var(--font-pixel);
  font-size: 28px;
  letter-spacing: var(--tracking-pixel);
  line-height: 1;
  color: var(--fg);
}
.site-nav {
  display: flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono-md);
  color: var(--muted);
  text-transform: lowercase;
  letter-spacing: var(--tracking-mono);
}
.site-nav a {
  color: var(--muted);
  transition: color var(--dur-fast) var(--easing);
}
.site-nav a:hover { color: var(--fg); }
.site-nav a.is-active {
  color: var(--fg);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.site-nav a.is-active::after {
  content: "";
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 999px;
}

/* ─── Hero ──────────────────────────────────────────────────── */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--gap-xl);
  align-content: center;
  padding: clamp(40px, 5vw, 64px) var(--pad-page-x);
  position: relative;
  z-index: 1;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-xs);
  color: var(--muted);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.eyebrow .dash {
  display: inline-block;
  width: 18px; height: 1px;
  background: var(--muted);
}

.hero-title {
  font-family: var(--font-pixel);
  font-weight: 400;
  font-size: var(--fs-h1);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-pixel);
  color: var(--fg);
  margin: 0;
  text-wrap: balance;
}
.hero-title .accent {
  color: var(--accent);
}
.hero-title .cursor {
  display: inline-block;
  width: 0.4em;
  background: var(--accent);
  margin-left: 0.05em;
  vertical-align: -0.02em;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-body {
  margin-top: 28px;
  max-width: 460px;
  font-size: var(--fs-body);
  line-height: var(--leading-body);
  color: var(--fg-soft);
}

.cta-row {
  display: flex;
  gap: var(--gap-sm);
  align-items: center;
  margin-top: 28px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  font-family: var(--font-mono);
  font-size: var(--fs-mono-md);
  letter-spacing: var(--tracking-pixel);
  border-radius: var(--radius-pill);
  transition: transform var(--dur-fast) var(--easing), background var(--dur-fast) var(--easing);
}
.btn-primary {
  background: var(--accent);
  color: #0a0a0c;
  font-weight: 600;
}
.btn-primary:hover { background: var(--accent-hot); }
.btn-ghost {
  color: var(--fg);
  border-radius: 0;
  padding: 13px 4px;
}
.btn-ghost:hover { color: var(--accent); }

.btn.is-disabled,
.btn:disabled {
  cursor: not-allowed;
  pointer-events: none;
}
.btn-primary.is-disabled,
.btn-primary:disabled {
  background: transparent;
  color: var(--fg-soft);
  box-shadow: inset 0 0 0 1px var(--hairline);
  font-weight: 500;
}
.btn-ghost.is-disabled,
.btn-ghost:disabled {
  color: var(--fg-soft);
}
.btn .btn-meta {
  color: var(--muted);
  font-size: var(--fs-mono-xs);
  letter-spacing: var(--tracking-mono);
  text-transform: lowercase;
  margin-left: 2px;
}

/* ─── Hero right side · pixel illustration + streams ───────── */
.hero-side {
  align-self: center;
  display: flex;
  flex-direction: column;
  gap: var(--gap-md);
}

.pixel-illustration {
  display: block;
  width: 100%;
  height: auto;
  max-height: 260px;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.streams {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.012);
  padding: 22px 24px;
}
.streams-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 16px;
}
.streams-title {
  font-family: var(--font-pixel);
  font-size: 22px;
  letter-spacing: var(--tracking-pixel);
  color: var(--accent);
}
.streams-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
}
.streams-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.streams-list > li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--hairline);
}
.streams-list > li:first-child { border-top: 0; padding-top: 4px; }
.streams-list .code {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent);
  letter-spacing: 0.06em;
  padding-top: 3px;
}
.streams-list .name {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--fg);
}
.streams-list .desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.45;
  margin-top: 2px;
}

.stat-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-sm);
}
.stat {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stat .label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
}
.stat .value {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg);
  letter-spacing: 0.02em;
}
.stat .value.is-accent { color: var(--accent); }

/* ─── Footer ────────────────────────────────────────────────── */
.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px var(--pad-page-x);
  border-top: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: var(--fs-mono-xs);
  color: var(--muted);
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
  position: relative;
  z-index: 2;
}
.site-footer .right {
  display: flex;
  gap: 18px;
  align-items: center;
}
.site-footer .pulse::before {
  content: "●";
  color: var(--accent);
  margin-right: 6px;
}

/* ─── Responsive ────────────────────────────────────────────── */
@media (max-width: 1023px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--gap-lg);
  }
  .hero-side { max-width: 540px; }
  .pixel-illustration { max-height: 180px; }
}

@media (max-width: 640px) {
  :root { --pad-page-x: 20px; --pad-page-y: 16px; --fs-h1: clamp(44px, 13vw, 72px); }
  .site-header { flex-direction: column; align-items: flex-start; gap: 14px; }
  .site-nav { gap: 18px; flex-wrap: wrap; font-size: 11px; }
  .hero { padding: 32px var(--pad-page-x); }
  .cta-row { gap: 8px; }
  .btn { padding: 11px 18px; font-size: 12px; }
  .streams { padding: 18px 18px; }
  .streams-title { font-size: 20px; }
  .stat-row { grid-template-columns: 1fr; }
  .site-footer {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
    font-size: 10px;
  }
  .pixel-illustration { max-height: 140px; }
}

/* ─── Hero variant: centered ────────────────────────────────── */
.hero-centered {
  grid-template-columns: 1fr;
  justify-items: center;
  text-align: center;
  padding: clamp(40px, 6vw, 96px) var(--pad-page-x);
}
.hero-center-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  max-width: 880px;
  width: 100%;
}
.eyebrow-center { justify-content: center; }
.eyebrow-center .dash { display: none; }
.hero-title-center { text-wrap: balance; }
.hero-body-center { margin-top: 4px; }
.hero-illust-wrap {
  width: 100%;
  max-width: 720px;
  margin-top: 24px;
}
.hero-streams-wrap, .hero-stats-wrap {
  width: 100%;
  max-width: 720px;
  text-align: left;
}

/* ─── Hero variant: terminal ────────────────────────────────── */
.hero-terminal { grid-template-columns: 1.1fr 0.9fr; }
.terminal-prompt {
  font-family: var(--font-mono);
  font-size: var(--fs-mono-md);
  color: var(--accent);
  letter-spacing: var(--tracking-mono);
  margin-bottom: 20px;
}
.terminal-prompt .prompt-glyph { color: var(--muted); margin-right: 8px; }
.hero-title-term { font-size: clamp(44px, 6.2vw, 76px); }
.terminal-out {
  font-family: var(--font-mono);
  font-size: var(--fs-body);
  color: var(--fg-soft);
  line-height: var(--leading-body);
  margin: 20px 0 0;
  border-left: 2px solid var(--accent);
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 540px;
}
.terminal-line { display: block; }
.terminal-arrow { color: var(--muted); margin-right: 8px; }
.terminal-status { color: var(--muted); }
.terminal-status .accent { color: var(--accent); font-weight: 500; }

@media (max-width: 1023px) {
  .hero-terminal { grid-template-columns: 1fr; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .hero-title .cursor { animation: none; }
  * { transition: none !important; }
}

/* ─── Specification: terminal window ────────────────────────── */
.term-window {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--bg-elevated);
  overflow: hidden;
}
.term-titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--hairline);
}
.term-titlebar .dot {
  width: 8px; height: 8px;
  border-radius: 999px;
  background: var(--muted);
  opacity: 0.5;
}
.term-titlebar .dot.go { background: var(--accent); opacity: 1; }
.term-titlebar .term-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
}
.term-body {
  margin: 0;
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--fg-soft);
  overflow-x: auto;
}
.term-body .ok { color: var(--accent); }
.term-body .dim { color: var(--muted); }
.term-body .cmd { color: var(--fg); font-weight: 500; }

/* ─── Post-critique: motion, focus, emphasis ────────────────── */
@keyframes tagblink { 50% { opacity: 0.35; } }
.streams-tag { animation: tagblink 1.6s steps(2, jump-none) infinite; }

a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.site-nav a.is-primary { color: var(--fg); }
.site-nav a.is-primary:hover { color: var(--accent); }

.btn-primary .btn-meta { color: rgba(10,10,12,0.7); }

/* terminal boot sequence: elements hidden only when JS opts in */
.js-anim .hero-title:not(.is-on),
.js-anim .terminal-out .terminal-line:not(.is-on),
.js-anim .cta-row:not(.is-on) { visibility: hidden; }

@media (prefers-reduced-motion: reduce) {
  .streams-tag { animation: none; }
}