/* ─────────────────────────────────────────────────────────────────────────────
   keyboardbuilders — dark theme for DIY split-keyboard nerds.
   Tokyo-Night-ish palette, monospace UI chrome (terminal/keyboard vibe),
   sans body for readability, and buttons that press like keycaps.
   ───────────────────────────────────────────────────────────────────────────── */

:root {
  --bg:        #16161e;
  --bg-elev:   #1e1f2b;
  --bg-input:  #14141c;
  --border:    #2a2b3a;
  --border-hi: #3b3d52;
  --text:      #c8d3f5;
  --muted:     #7a7f9c;
  --accent:    #7dcfff;  /* cyan — links */
  --accent-2:  #bb9af7;  /* purple — headings */
  --green:     #9ece6a;  /* buildable */
  --teal:      #2ac3de;  /* proven */
  --red:       #f7768e;  /* not buildable */
  --amber:     #e0af68;  /* warnings / source-lost / handwired */

  --mono: ui-monospace, "JetBrains Mono", "Cascadia Code", "SF Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  font-family: var(--sans);
  background:
    radial-gradient(900px 500px at 100% -10%, #1c2030 0%, transparent 60%),
    var(--bg);
  color: var(--text);
  max-width: 52rem;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1 {
  font-family: var(--mono);
  font-size: 1.7rem;
  letter-spacing: -0.01em;
  color: #e6ecff;
  margin: 1.5rem 0 0.25rem;
}
h1::before { content: "> "; color: var(--accent-2); }

h2 { font-family: var(--mono); color: var(--text); }

.subtitle { color: var(--muted); margin-top: 0; }
.empty { color: var(--muted); font-style: italic; }
.hint { color: var(--amber); }
.hint strong { color: #f2c98a; }

/* ── nav ─────────────────────────────────────────────────────────────────── */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0 0.9rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.9rem;
}
.site-nav .brand { color: var(--accent-2); font-weight: 700; letter-spacing: -0.02em; }
.site-nav .brand:hover { text-decoration: none; opacity: 0.85; }
.nav-links { display: flex; gap: 1.25rem; }
.site-nav a { color: var(--muted); font-weight: 600; }
.site-nav .nav-links a:hover { color: var(--accent); text-decoration: none; }

/* ── callout / framing ───────────────────────────────────────────────────── */
.framing {
  color: #aab2d5;
  background: var(--bg-elev);
  border-left: 3px solid var(--accent-2);
  padding: 0.6rem 0.85rem;
  border-radius: 0 6px 6px 0;
  font-size: 0.9rem;
}

/* ── lists (designs / variants / results) ────────────────────────────────── */
ul.designs, ul.variants, ul.sources { list-style: none; padding: 0; }
ul.designs li, ul.variants li {
  padding: 0.85rem 0.9rem;
  margin: 0.5rem 0;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.12s ease, transform 0.12s ease;
}
ul.designs li:hover, ul.variants li:hover { border-color: var(--border-hi); transform: translateX(2px); }
.design-name, .variant-name { font-weight: 600; font-size: 1.02rem; }
.design-meta, .variant-attrs { color: var(--muted); font-size: 0.88rem; margin-top: 0.15rem; }
.variant-attrs { font-family: var(--mono); }

/* ── version switcher / sources ──────────────────────────────────────────── */
.version-switcher { font-family: var(--mono); font-size: 0.9rem; margin: 0.85rem 0; }
.version-switcher a { margin: 0 0.2rem; }
.version-current { margin: 0 0.2rem; font-weight: 700; color: var(--accent-2); text-decoration: underline; }
.features-label { color: var(--muted); margin-right: 0.3rem; font-size: 0.9rem; }
.source-category { font-size: 0.95rem; margin: 1.1rem 0 0.35rem; color: var(--accent); }
ul.sources li { padding: 0.25rem 0; word-break: break-all; font-family: var(--mono); font-size: 0.85rem; }

/* ── pills: flags / annotations / verdicts ───────────────────────────────── */
.flag-lost, .warning, .handwired-note,
.verdict-buildable, .verdict-not, .verdict-declined, .verdict-proven,
.annot-buildable, .annot-none, .annot-proven, .feature-chip {
  font-family: var(--mono);
}
.pill, .flag-lost,
.verdict-buildable, .verdict-not, .verdict-declined, .verdict-proven,
.annot-buildable, .annot-none, .annot-proven {
  display: inline-block;
  padding: 0.08rem 0.5rem;
  margin-left: 0.4rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: 999px;
  border: 1px solid;
}
.verdict-buildable, .annot-buildable { color: var(--green); background: rgba(158,206,106,0.12); border-color: rgba(158,206,106,0.4); }
.verdict-not,       .annot-none      { color: var(--red);   background: rgba(247,118,142,0.12); border-color: rgba(247,118,142,0.4); }
.verdict-proven,    .annot-proven    { color: var(--teal);  background: rgba(42,195,222,0.12);  border-color: rgba(42,195,222,0.4); }
.verdict-declined { color: var(--muted); background: rgba(122,127,156,0.12); border-color: rgba(122,127,156,0.4); }
.flag-lost { color: var(--amber); background: rgba(224,175,104,0.12); border-color: rgba(224,175,104,0.4); }
.annot-note { color: var(--muted); font-size: 0.8rem; font-style: italic; margin-left: 0.3rem; }
.verdict-detail { color: var(--muted); font-size: 0.9rem; margin-top: 0.5rem; }

.warning, .handwired-note {
  color: #f2c98a;
  background: rgba(224,175,104,0.08);
  border: 1px solid rgba(224,175,104,0.35);
  border-radius: 6px;
  padding: 0.6rem 0.85rem;
  font-size: 0.9rem;
}
.warning strong, .handwired-note strong { color: var(--amber); }

/* ── configurator / discovery forms ──────────────────────────────────────── */
fieldset {
  margin: 1rem 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.9rem 0.9rem;
  background: var(--bg-elev);
}
legend { font-family: var(--mono); font-weight: 700; color: var(--accent); padding: 0 0.4rem; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.04em; }
label.pick, label.feature { display: inline-block; margin-right: 1rem; margin-bottom: 0.3rem; }
.module-pick { margin: 0.4rem 0; }

input[type="text"], input[type="number"], select {
  font-family: var(--mono);
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border-hi);
  border-radius: 5px;
  padding: 0.3rem 0.45rem;
}
input:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 2px rgba(125,207,255,0.2); }
input[type="checkbox"], input[type="radio"] { accent-color: var(--accent); }

/* ── keycaps: buttons + primary action links ─────────────────────────────── */
button, .action-link {
  display: inline-block;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.85rem;
  color: #e6ecff;
  background: linear-gradient(#2c2e3d, #23242f);
  border: 1px solid var(--border-hi);
  border-bottom: 3px solid #15161d;
  border-radius: 7px;
  padding: 0.45rem 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: filter 0.1s ease, transform 0.05s ease, border-bottom-width 0.05s ease;
}
button:hover, .action-link:hover { filter: brightness(1.15); text-decoration: none; }
/* the keycap press */
button:active, .action-link:active { transform: translateY(2px); border-bottom-width: 1px; }
.action-link { color: var(--accent); }

.variant-actions { margin: 0.6rem 0 1rem; }
.configure-link { display: inline-block; margin-top: 0.35rem; font-family: var(--mono); font-weight: 600; font-size: 0.88rem; }

/* ── verdict panel + feature chips ───────────────────────────────────────── */
#verdict, #results { margin-top: 1.5rem; }
.features { margin-top: 0.9rem; }
.feature-chip {
  display: inline-block;
  margin: 0.15rem 0.2rem;
  padding: 0.08rem 0.5rem;
  font-size: 0.78rem;
  color: var(--accent);
  background: rgba(125,207,255,0.1);
  border: 1px solid rgba(125,207,255,0.3);
  border-radius: 5px;
}