/* RomCloud site — technology glassmorphism, light/dark + auto */
:root {
  --bg: #05070f; --bg2: rgba(17, 25, 40, 0.55); --card: rgba(17, 25, 40, 0.55);
  --fg: #f1f5f9; --dim: #94a3b8; --line: rgba(148, 163, 184, 0.22);
  --acc: #38bdf8; --acc2: #a78bfa; --gold: #ffd166;
  --good: #34d399; --bad: #f87171;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #eef2f7; --bg2: rgba(255, 255, 255, 0.6); --card: rgba(255, 255, 255, 0.6);
    --fg: #0f172a; --dim: #475569; --line: rgba(15, 23, 42, 0.12);
    --acc: #0284c7; --acc2: #7c3aed; --gold: #b45309;
    --good: #059669; --bad: #dc2626;
  }
}
:root[data-theme="light"] {
  --bg: #eef2f7; --bg2: rgba(255, 255, 255, 0.6); --card: rgba(255, 255, 255, 0.6);
  --fg: #0f172a; --dim: #475569; --line: rgba(15, 23, 42, 0.12);
  --acc: #0284c7; --acc2: #7c3aed; --gold: #b45309;
  --good: #059669; --bad: #dc2626;
}
* { box-sizing: border-box; }
body {
  margin: 0; color: var(--fg);
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  background:
    radial-gradient(900px 500px at 10% -5%, rgba(56,189,248,0.16), transparent 60%),
    radial-gradient(800px 500px at 95% 10%, rgba(139,92,246,0.14), transparent 60%),
    radial-gradient(700px 600px at 50% 110%, rgba(16,185,129,0.10), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  min-height: 100vh;
}
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px 64px; }
.topbar {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 20px; margin: 16px 0 24px;
  background: var(--card);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border: 1px solid var(--line); border-radius: 16px;
  box-shadow: 0 8px 32px rgba(2,8,23,0.35);
  position: sticky; top: 12px; z-index: 50;
}
.logo { font-size: 28px; }
.brand {
  font-size: 20px; font-weight: 800; letter-spacing: 3px; flex: 1;
  background: linear-gradient(90deg, var(--acc), var(--acc2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.brand small { display: block; font-size: 11px; color: var(--dim); letter-spacing: 2px; -webkit-text-fill-color: var(--dim); }
nav a { color: var(--acc); margin-left: 16px; font-size: 14px; text-decoration: none; }
nav a:hover { text-decoration: underline; }
.btn {
  display: inline-block; color: #fff; border: none;
  background: linear-gradient(135deg, #0284c7, #7c3aed);
  box-shadow: 0 4px 18px rgba(56,189,248,0.45);
  padding: 13px 24px; font-weight: 700; font-size: 15px; cursor: pointer;
  text-decoration: none; border-radius: 12px; font-family: inherit;
}
.btn:active { transform: translateY(2px); }
.btn.ghost {
  background: var(--card); color: var(--fg);
  border: 1px solid var(--line); box-shadow: none;
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
}
.btn:disabled { opacity: .5; cursor: wait; }
.hero {
  border: 1px solid var(--line); background: var(--card);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 8px 32px rgba(2,8,23,0.35), inset 0 1px 0 rgba(255,255,255,0.06);
  border-radius: 20px; padding: 36px 28px; text-align: center; margin-bottom: 24px;
}
.hero h1 { font-size: 34px; margin: 0 0 8px; letter-spacing: 5px; }
.hero h1 .y {
  background: linear-gradient(90deg, var(--acc), var(--acc2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p { color: var(--dim); margin: 6px 0 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card {
  border: 1px solid var(--line); background: var(--card);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 8px 32px rgba(2,8,23,0.35);
  border-radius: 16px; padding: 18px;
  transition: border-color .15s, transform .15s;
  display: flex; gap: 14px; align-items: center;
}
.card:hover { border-color: rgba(56,189,248,0.55); transform: translateY(-3px); }
.card img.feat { width: 56px; height: 56px; object-fit: contain; flex: none; }
.card .txt h3 { margin: 0 0 6px; font-size: 16px; color: var(--acc); }
.card .txt p { margin: 0; font-size: 13px; color: var(--dim); }
.steps { counter-reset: s; padding: 0; list-style: none; }
.steps li {
  counter-increment: s; border: 1px solid var(--line); background: var(--card);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  box-shadow: 0 8px 32px rgba(2,8,23,0.35);
  border-radius: 16px; padding: 16px 16px 16px 62px;
  margin-bottom: 14px; position: relative; font-size: 14px;
}
.steps li::before {
  content: counter(s); position: absolute; left: 14px; top: 14px;
  width: 32px; height: 32px; color: #fff;
  background: linear-gradient(135deg, #0284c7, #7c3aed);
  font-weight: bold; display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
}
#log {
  background: rgba(0,0,0,0.72); color: #34d399;
  border: 1px solid var(--line); border-radius: 12px;
  padding: 12px; height: 220px; overflow-y: auto; font-size: 12px;
  white-space: pre-wrap; margin-top: 14px; font-family: monospace;
}
#log .err { color: #f87171; }
#log .ok { color: #34d399; }
.status { margin-top: 12px; font-size: 14px; }
.status b { color: var(--gold); }
footer { margin-top: 32px; padding-top: 14px; font-size: 12px; color: var(--dim); border-top: 1px solid var(--line); }
footer a { color: var(--acc); }
.theme-btn {
  background: var(--card); color: var(--fg);
  border: 1px solid var(--line); padding: 7px 12px; cursor: pointer;
  font-family: inherit; font-size: 13px; border-radius: 10px;
}
code { background: var(--bg2); border: 1px solid var(--line); padding: 1px 6px; font-size: 13px; border-radius: 6px; }
.warn {
  border: 1px solid rgba(255,209,102,0.5); background: rgba(255,209,102,0.07);
  padding: 14px 16px; font-size: 13px; margin-bottom: 16px; border-radius: 14px;
}
.warn a { color: var(--acc); }
h3 { color: var(--fg); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(56,189,248,0.3); border-radius: 8px; }

/* App switcher: 2 main card RomCloud | BrickDrop */
.app-switch {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  margin-bottom: 22px; text-align: left;
}
.app-card {
  display: flex; gap: 14px; align-items: center;
  border: 1px solid var(--line); background: var(--bg2);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-radius: 16px; padding: 18px; cursor: pointer;
  transition: border-color .15s, transform .15s, box-shadow .15s;
}
.app-card:hover { border-color: rgba(56,189,248,0.55); transform: translateY(-2px); }
.app-card.active {
  border: 2px solid var(--acc);
  box-shadow: 0 0 0 3px rgba(56,189,248,0.22), 0 8px 32px rgba(2,8,23,0.35);
}
.app-emoji { font-size: 44px; flex: none; }
.app-card h2 { margin: 0; font-size: 20px; }
.app-card p { margin: 4px 0 0 !important; font-size: 13px; color: var(--dim); }
.feat-emoji {
  width: 56px; height: 56px; font-size: 40px; flex: none;
  display: flex; align-items: center; justify-content: center;
}
@media (max-width: 640px) {
  .app-switch { grid-template-columns: 1fr; }
}