:root {
  --bg: #0e0e22; --panel: #171735; --panel2: #1d1d42;
  --fg: #e8e8f4; --muted: #9a9ab8; --accent: #a86bff; --accent2: #7c5cff;
  --ok: #3fd68f; --warn: #ffb84d; --err: #ff6b7a; --border: #2b2b58;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--fg);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}
main { max-width: 720px; margin: 0 auto; padding: 0 1rem 3rem; }
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: .92em; }

.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: .8rem 1rem; border-bottom: 1px solid var(--border);
  max-width: 720px; margin: 0 auto;
}
.brand { font-weight: 700; letter-spacing: .02em; }
.brand .logo { color: var(--accent); margin-right: .3rem; }
.top-actions { display: flex; gap: .4rem; }

button {
  font: inherit; cursor: pointer; border-radius: 8px; border: none;
  padding: .65rem 1.1rem; transition: filter .15s ease;
}
button:hover { filter: brightness(1.15); }
.primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); color: #fff; font-weight: 600; width: 100%; margin-top: .6rem; }
.ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.ghost.small { font-size: .82rem; padding: .35rem .7rem; }

.hero { padding: 2.2rem 0 1.2rem; }
.hero h1 { font-size: clamp(1.5rem, 5vw, 2.1rem); margin: 0 0 .5rem; line-height: 1.25; }
.hero h1 em { color: var(--accent); font-style: normal; }
.badges { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: 1rem; }
.badge {
  font-size: .74rem; letter-spacing: .04em; text-transform: uppercase;
  color: var(--accent); border: 1px solid var(--accent); border-radius: 999px; padding: .15rem .6rem;
}

.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; padding: 1.2rem 1.3rem; margin: 1.1rem 0;
}
.card h2 { margin: 0 0 .3rem; font-size: 1.08rem; }

.boot { padding: 1rem; color: var(--muted); text-align: center; }

.form label { display: block; margin: .8rem 0; }
.form label > span { display: block; font-size: .85rem; color: var(--muted); margin-bottom: .3rem; }
.form input, .form select {
  width: 100%; font: inherit; color: var(--fg);
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: .6rem .7rem;
}
.form .check { display: flex; align-items: center; gap: .55rem; }
.form .check input { width: auto; }
.form .check > span { margin: 0; color: var(--fg); font-size: .95rem; }

.result { margin-top: 1rem; }
.result .row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: .45rem 0; border-bottom: 1px dashed var(--border); font-size: .95rem;
}
.result .total-row strong { font-size: 1.5rem; color: var(--ok); }
.rulepath { margin-top: .7rem; font-family: ui-monospace, Consolas, monospace; font-size: .78rem; color: var(--muted); white-space: pre-wrap; word-break: break-all; }

.err { margin-top: 1rem; color: var(--err); font-size: .9rem; }

table.catalog { width: 100%; border-collapse: collapse; margin-top: .6rem; }
.catalog th, .catalog td { text-align: left; padding: .45rem .3rem; border-bottom: 1px solid var(--border); font-size: .93rem; }
.catalog th { color: var(--muted); font-weight: 600; }
.catalog td:last-child, .catalog th:last-child { text-align: right; }

.history { list-style: none; margin: .6rem 0; padding: 0; }
.history li {
  display: flex; justify-content: space-between; gap: .6rem;
  padding: .45rem 0; border-bottom: 1px dashed var(--border); font-size: .88rem; color: var(--muted);
}
.history li strong { color: var(--fg); font-weight: 500; }

details summary { cursor: pointer; font-weight: 600; }
.srccode {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: .9rem; overflow-x: auto; font-size: .78rem; line-height: 1.5;
  font-family: ui-monospace, Consolas, monospace; white-space: pre;
}

footer { margin-top: 2rem; font-size: .85rem; color: var(--muted); text-align: center; }
footer a { color: var(--accent); text-decoration: none; }