/* GHOSTNET LABS — shared styles. Mobile-first; no external fonts. */

:root {
  --bg: #0d1013;
  --surface: #151a1f;
  --surface-2: #1c2228;
  --border: #2a323a;
  --text: #e3e8ec;
  --muted: #8d99a4;
  --accent: #4fd1a5;
  --accent-ink: #062018;
  --draft: #f0b54a;
  --draft-ink: #2a1c02;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --gap: 1rem;
  --radius: 10px;
  --max: 68rem;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7f8;
    --surface: #ffffff;
    --surface-2: #eef1f3;
    --border: #d5dbe0;
    --text: #161b20;
    --muted: #57626c;
    --accent: #0b8a63;
    --accent-ink: #ffffff;
    --draft: #b86e00;
    --draft-ink: #ffffff;
    color-scheme: light;
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

a { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

h1, h2 { line-height: 1.2; margin: 0 0 0.5rem; }
h1 { font-size: clamp(1.75rem, 6vw, 2.75rem); letter-spacing: -0.02em; }
h2 { font-size: 1.2rem; }

.site-header,
.landing,
.project-head,
#app,
.site-footer {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1rem;
}

.site-header {
  display: flex;
  align-items: center;
  min-height: 3.5rem;
  border-bottom: 1px solid var(--border);
}

.brand,
.back {
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--text);
}
.brand { font-weight: 700; }
.back:hover, .brand:hover { color: var(--accent); }

.intro { padding: 2.5rem 0 1.5rem; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.75rem;
}

.lede { color: var(--muted); max-width: 40rem; margin: 0; }

.cards {
  list-style: none;
  margin: 0 0 3rem;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

@media (min-width: 40rem) {
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 64rem) {
  .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

.card a {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  transition: border-color 120ms ease;
}
.card a:hover, .card a:focus-visible { border-color: var(--accent); }

.tagline { color: var(--muted); margin: 0 0 1rem; }

.badges { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0 0 1rem; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-2);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.badge.data-trading { color: var(--accent); border-color: var(--accent); }

.badge.draft,
.draft {
  background: var(--draft);
  border-color: var(--draft);
  color: var(--draft-ink);
  font-weight: 700;
}

.stack {
  list-style: none;
  margin: auto 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.empty {
  padding: 2rem 1rem;
  margin: 0 0 3rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  text-align: center;
}

.project-head { padding: 2rem 1rem 1rem; }

#app {
  min-height: 40vh;
  padding-top: 1rem;
  padding-bottom: 3rem;
}

.placeholder {
  padding: 3rem 1rem;
  margin: 0;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.9rem;
  text-align: center;
}

.demo-ribbon {
  position: fixed;
  top: 0.75rem;
  right: 0.75rem;
  z-index: 10;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  pointer-events: none;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  z-index: 20;
  max-width: calc(100% - 2rem);
  padding: 0.6rem 1rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.85rem;
  transform: translate(-50%, 1rem);
  opacity: 0;
  transition: opacity 160ms ease, transform 160ms ease;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

.site-footer {
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
}
.site-footer p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}