:root {
  --bg: #0c0a10;
  --bg-soft: #131019;
  --card: #17131f;
  --line: #2a2333;
  --text: #ece9f2;
  --muted: #a397b4;
  --accent: #f472b6;
  --accent-2: #a78bfa;
  --ok: #4ade80;
  --radius: 16px;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(900px 500px at 12% -10%, rgba(167, 139, 250, 0.16), transparent 60%),
    radial-gradient(800px 480px at 88% 0%, rgba(244, 114, 182, 0.13), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { width: min(1120px, calc(100% - 2.5rem)); margin-inline: auto; }

a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- hero ---------- */
.hero { padding: 4.5rem 0 2.5rem; }

.eyebrow {
  margin: 0 0 0.85rem;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.3rem, 6vw, 3.9rem);
  line-height: 1.03;
  letter-spacing: -0.03em;
  background: linear-gradient(100deg, #fff 15%, var(--accent) 55%, var(--accent-2) 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede { max-width: 62ch; margin: 0 0 1.5rem; color: #cdc4da; font-size: 1.06rem; }

.badges { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 1.6rem; padding: 0; list-style: none; }
.badges li {
  font-size: 0.78rem;
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.02);
}

.hero-links { display: flex; flex-wrap: wrap; gap: 0.65rem; }

.btn {
  display: inline-block;
  padding: 0.62rem 1.1rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  color: var(--text);
  font-size: 0.92rem;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; border-color: #4a3d5c; transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  border: none;
  color: #16101c;
  font-weight: 650;
}

/* ---------- warning ---------- */
.warning {
  margin: 0 auto 2.5rem;
  padding: 0.95rem 1.15rem;
  border: 1px solid rgba(244, 114, 182, 0.35);
  border-left-width: 4px;
  border-radius: 10px;
  background: rgba(244, 114, 182, 0.07);
  color: #f3d8e6;
  font-size: 0.93rem;
}

/* ---------- sections ---------- */
main { display: grid; gap: 2.6rem; padding-bottom: 3rem; }

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.028), transparent 65%), var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
}

.section-head { margin-bottom: 1.3rem; }
.section-head h2 { margin: 0 0 0.4rem; font-size: 1.42rem; letter-spacing: -0.015em; }
.section-head .hint { margin: 0; }

.hint { color: var(--muted); font-size: 0.92rem; }
.hint.small { font-size: 0.82rem; }
.hint code, .spec code { font-family: var(--mono); font-size: 0.85em; color: #d9cdea; }

h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }
h3.sub { margin-bottom: 0.7rem; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }

.grid { display: grid; gap: 1.1rem; }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* ---------- builder ---------- */
.builder {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 1.2rem;
}
@media (max-width: 900px) { .builder { grid-template-columns: 1fr; } }

.field { display: block; margin-bottom: 1rem; }
.field-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.45rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--muted);
}
.field-actions { display: flex; align-items: center; gap: 0.6rem; text-transform: none; letter-spacing: 0; }

textarea {
  width: 100%;
  padding: 0.8rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #0f0c15;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.84rem;
  line-height: 1.55;
  resize: vertical;
}
textarea:focus { outline: none; border-color: var(--accent-2); box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.15); }

.mini {
  font: inherit;
  font-size: 0.76rem;
  padding: 0.28rem 0.6rem;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.mini:hover { color: var(--text); border-color: #4a3d5c; }
.mini.done { color: var(--ok); border-color: rgba(74, 222, 128, 0.4); }

.count { font-size: 0.78rem; color: var(--muted); font-variant-numeric: tabular-nums; }

.code-block {
  margin: 0;
  padding: 0.95rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #0a0810;
  color: #d7cfe4;
  font-family: var(--mono);
  font-size: 0.79rem;
  line-height: 1.6;
  overflow: auto;
  max-height: 430px;
  white-space: pre-wrap;
  word-break: break-word;
}
.code-block code { font: inherit; }

/* ---------- switch ---------- */
.toggles { margin-top: 0.3rem; }
.switch { display: flex; align-items: center; gap: 0.65rem; cursor: pointer; }
.switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.track {
  width: 40px; height: 22px;
  border-radius: 999px;
  background: #2b2436;
  border: 1px solid var(--line);
  position: relative;
  transition: background 0.18s;
  flex: none;
}
.thumb {
  position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--muted);
  transition: left 0.18s, background 0.18s;
}
.switch input:checked + .track { background: linear-gradient(100deg, var(--accent), var(--accent-2)); border-color: transparent; }
.switch input:checked + .track .thumb { left: 20px; background: #1a1020; }
.switch input:focus-visible + .track { box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.25); }
.switch-label { font-size: 0.86rem; color: #d5cce2; }
.switch-label code { font-family: var(--mono); font-size: 0.8em; color: var(--muted); }

/* ---------- presets ---------- */
.preset { display: flex; flex-direction: column; gap: 0.3rem; }
.params { margin: 0.5rem 0 0.9rem; display: grid; gap: 0.25rem; font-size: 0.85rem; }
.params div, .spec div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.28rem 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
}
.params dt, .spec dt { color: var(--muted); }
.params dd, .spec dd { margin: 0; font-family: var(--mono); font-size: 0.82rem; text-align: right; }
.preset .mini { align-self: flex-start; margin-top: auto; }

/* ---------- specs ---------- */
.spec-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 0 2.6rem;
}
.spec-col { display: flex; flex-direction: column; }
.spec-item {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  padding: 0.6rem 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.07);
}
.spec-item span {
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--muted);
}
.spec-item strong { font-weight: 500; font-size: 0.93rem; color: #e6dff0; }
.spec-item strong a { color: var(--accent-2); }

/* ---------- tabs ---------- */
.tabs { display: flex; gap: 0.4rem; margin-bottom: 0.9rem; border-bottom: 1px solid var(--line); padding-bottom: 0.6rem; }
.tab {
  font: inherit;
  font-size: 0.86rem;
  padding: 0.35rem 0.75rem;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--text); background: rgba(167, 139, 250, 0.12); border-color: rgba(167, 139, 250, 0.28); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---------- checklist ---------- */
.checklist { margin: 0 0 1.1rem; padding-left: 1.1rem; color: #cdc4da; font-size: 0.92rem; }
.checklist li { margin-bottom: 0.35rem; }
.checklist li::marker { color: var(--accent); }

/* ---------- footer ---------- */
footer { padding: 1.5rem 0 3.5rem; color: var(--muted); font-size: 0.87rem; border-top: 1px solid var(--line); }
footer p { margin: 0.3rem 0; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}