/* ---------- Design tokens ---------- */
:root {
  --bg: #f4f3f8;
  --bg-grad: radial-gradient(900px 380px at 50% -120px, rgba(139, 92, 246, .16), transparent 70%);
  --card: #ffffff;
  --card-2: #f8f7fc;
  --ink: #1b1826;
  --muted: #655f77;
  --line: #e1deea;
  --accent: #7c3aed;
  --accent-2: #6d28d9;
  --accent-ink: #ffffff;
  --accent-soft: rgba(124, 58, 237, .10);
  --ok: #15803d;
  --ok-bg: #e7f6ec;
  --warn: #92560a;
  --warn-bg: #fff3dc;
  --err: #b42318;
  --err-bg: #fdeceb;
  --shadow: 0 1px 2px rgba(20, 16, 40, .06), 0 8px 24px rgba(20, 16, 40, .06);
  --radius: 14px;
  --k1: #c24b99; --k2: #00c8d6; --k3: #12c805; --k4: #f9393f;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg: #121018; --bg-grad: radial-gradient(900px 380px at 50% -120px, rgba(167, 123, 255, .18), transparent 70%); --card: #1c1927; --card-2: #232031; --ink: #eeebf7; --muted: #a29cb4; --line: #342f45; --accent: #a78bfa; --accent-2: #b79dfc; --accent-ink: #14111d; --accent-soft: rgba(167, 139, 250, .14); --ok: #6ee7a0; --ok-bg: #11291c; --warn: #f3bf6b; --warn-bg: #30240e; --err: #ff9b92; --err-bg: #3a1714; --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35); }
}
:root[data-theme="dark"] { --bg: #121018; --bg-grad: radial-gradient(900px 380px at 50% -120px, rgba(167, 123, 255, .18), transparent 70%); --card: #1c1927; --card-2: #232031; --ink: #eeebf7; --muted: #a29cb4; --line: #342f45; --accent: #a78bfa; --accent-2: #b79dfc; --accent-ink: #14111d; --accent-soft: rgba(167, 139, 250, .14); --ok: #6ee7a0; --ok-bg: #11291c; --warn: #f3bf6b; --warn-bg: #30240e; --err: #ff9b92; --err-bg: #3a1714; --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35); }

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { color-scheme: light dark; }
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }
body {
  margin: 0;
  background: var(--bg) var(--bg-grad) no-repeat;
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 880px; margin: 0 auto; padding: 24px 16px 56px; }
h1, h2, h3 { line-height: 1.2; margin: 0; }
h2 { font-size: 1.25rem; margin-bottom: 6px; }
h3 { font-size: 1rem; margin: 26px 0 12px; }
code { font: .86em ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: color-mix(in srgb, var(--ink) 8%, transparent); padding: 1px 6px; border-radius: 5px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
[hidden] { display: none !important; }
.ico { width: 20px; height: 20px; flex: none; }
.ico.big { width: 44px; height: 44px; color: var(--accent); }
.muted { color: var(--muted); font-size: .9rem; }

/* ---------- Header ---------- */
.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 22px; }
.brand { display: flex; align-items: center; gap: 14px; }
.brand h1 { font-size: 1.55rem; letter-spacing: -.02em; }
.tag { margin: 2px 0 0; color: var(--muted); font-size: .95rem; }
.tag .arrow { color: var(--accent); font-weight: 700; padding: 0 2px; }
.logo { display: grid; grid-template-columns: repeat(2, 22px); gap: 4px; }
.logo .k { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 6px; color: #fff; font-size: 13px; font-weight: 700; line-height: 1; }
.k1 { background: var(--k1); } .k2 { background: var(--k2); } .k3 { background: var(--k3); } .k4 { background: var(--k4); }
.icon-btn { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; background: var(--card); color: var(--ink); border: 1px solid var(--line); cursor: pointer; }
.icon-btn:hover { border-color: var(--accent); }

/* ---------- Stepper ---------- */
.steps { display: flex; gap: 8px; list-style: none; margin: 0 0 18px; padding: 0; }
.step { flex: 1; display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 12px; background: var(--card); border: 1px solid var(--line); color: var(--muted); font-weight: 600; font-size: .92rem; transition: border-color .2s, color .2s; }
.step .dot { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--card-2); border: 1px solid var(--line); font-size: .8rem; flex: none; }
.step.active { color: var(--ink); border-color: var(--accent); }
.step.active .dot { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.step.done { color: var(--ink); }
.step.done .dot { background: var(--ok-bg); border-color: var(--ok); color: var(--ok); }
@media (max-width: 520px) { .step .lbl { display: none; } .step { justify-content: center; } }

/* ---------- Cards ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin-bottom: 16px; box-shadow: var(--shadow); animation: rise .3s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .card { animation: none; } * { transition: none !important; } }
.lead { margin: 0 0 16px; color: var(--muted); }

/* ---------- Drop zone ---------- */
.drop { display: flex; flex-direction: column; align-items: center; gap: 6px; text-align: center; padding: 36px 16px; border: 2px dashed var(--line); border-radius: 12px; background: var(--card-2); cursor: pointer; transition: border-color .15s, background .15s, transform .15s; }
.drop:hover, .drop:focus-visible { border-color: var(--accent); outline: none; }
.drop.over { border-color: var(--accent); background: var(--accent-soft); transform: scale(1.01); }
.drop-title { font-weight: 650; font-size: 1.05rem; }
.drop-title u { color: var(--accent); text-underline-offset: 3px; }
.drop-hint { color: var(--muted); font-size: .9rem; }

.file-row { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--card-2); }
.file-row .ico { color: var(--accent); width: 26px; height: 26px; }
.file-meta { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.file-meta strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-meta span { color: var(--muted); font-size: .86rem; }

/* ---------- Notices ---------- */
.notice { display: flex; gap: 10px; align-items: flex-start; margin: 14px 0 0; padding: 11px 13px; border-radius: 10px; font-size: .92rem; }
.notice.warn { background: var(--warn-bg); color: var(--warn); }
.notice.err { background: var(--err-bg); color: var(--err); }
.notice .ico { margin-top: 2px; }

/* ---------- Tiles ---------- */
.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(128px, 1fr)); gap: 10px; margin-top: 4px; }
.tile { display: flex; flex-direction: column; gap: 2px; padding: 12px 14px; border-radius: 12px; background: var(--card-2); border: 1px solid var(--line); }
.tile .ico { color: var(--accent); margin-bottom: 4px; }
.tile b { font-size: 1.5rem; line-height: 1.1; letter-spacing: -.02em; }
.tile span { color: var(--muted); font-size: .84rem; }
.tile.zero { opacity: .55; }

.contents { margin-top: 14px; border: 1px solid var(--line); border-radius: 12px; padding: 0 14px; }
.contents summary { padding: 11px 0; }
.contents-group { padding: 0 0 12px; }
.contents-group h4 { margin: 0 0 6px; font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { background: var(--accent-soft); border-radius: 999px; padding: 2px 11px; font-size: .84rem; }

/* ---------- Forms ---------- */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 620px) { .grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: .88rem; font-weight: 600; }
.field small { color: var(--muted); font-size: .8rem; }
input[type=text], select { width: 100%; padding: 10px 12px; font: inherit; color: inherit; background: var(--bg); border: 1px solid var(--line); border-radius: 9px; }
input[type=text]:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.check { display: flex; align-items: center; gap: 9px; margin-top: 14px; font-size: .92rem; }
.check input { width: 17px; height: 17px; accent-color: var(--accent); }
details > summary { cursor: pointer; font-weight: 600; }
.adv { margin-top: 18px; }
.adv > .grid { margin-top: 12px; }
#mod-pick-wrap { margin-bottom: 14px; }

/* ---------- Buttons ---------- */
.actions { display: flex; align-items: center; gap: 10px; margin-top: 22px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: inherit; font-weight: 650; cursor: pointer; text-decoration: none; padding: 10px 18px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); transition: background .15s, border-color .15s, transform .05s; }
.btn:hover { border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn.ghost { background: transparent; }
.btn.lg { padding: 13px 24px; font-size: 1.02rem; }
.btn:disabled { opacity: .55; cursor: progress; }
.btn:focus-visible, .icon-btn:focus-visible, .tab:focus-visible, .drop:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- Progress ---------- */
.bar-track { height: 10px; background: var(--line); border-radius: 99px; overflow: hidden; }
.bar { height: 100%; width: 0; background: linear-gradient(90deg, var(--k1), var(--accent)); border-radius: 99px; transition: width .15s; }
.progress-meta { display: flex; justify-content: space-between; margin-top: 8px; color: var(--muted); font-size: .9rem; }

/* ---------- Result ---------- */
.banner { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-radius: 12px; background: var(--ok-bg); color: var(--ok); }
.banner .ico { width: 26px; height: 26px; }
.banner strong { display: block; font-size: 1.05rem; }
.banner span { color: var(--ink); opacity: .8; font-size: .92rem; }
.banner.has-warn { background: var(--warn-bg); color: var(--warn); }
.banner.has-err { background: var(--err-bg); color: var(--err); }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin-top: 16px; }
.stat { border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; background: var(--card-2); }
.stat b { display: block; font-size: 1.5rem; line-height: 1.15; letter-spacing: -.02em; }
.stat span { color: var(--muted); font-size: .82rem; }

.tabs { display: flex; gap: 4px; margin-top: 26px; border-bottom: 1px solid var(--line); }
.tab { font: inherit; font-weight: 600; color: var(--muted); background: none; border: 0; border-bottom: 2px solid transparent; padding: 9px 14px; cursor: pointer; margin-bottom: -1px; }
.tab[aria-selected="true"] { color: var(--ink); border-bottom-color: var(--accent); }
.count { display: inline-block; min-width: 20px; padding: 0 6px; margin-left: 4px; border-radius: 99px; background: var(--card-2); border: 1px solid var(--line); font-size: .78rem; text-align: center; }
.panel { padding-top: 14px; }
.list { margin: 0; padding-left: 20px; font-size: .92rem; }
.list li { margin: 6px 0; }
.list.err { color: var(--err); }
.empty { color: var(--muted); margin: 0; }
.log { max-height: 320px; overflow: auto; margin: 0; padding: 12px; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; font: .8rem/1.5 ui-monospace, Consolas, monospace; white-space: pre-wrap; }
.log .w { color: var(--warn); } .log .e { color: var(--err); }

.foot { margin-top: 26px; color: var(--muted); font-size: .86rem; text-align: center; }
.foot a { color: var(--accent); }

/* ---------- Engine row ---------- */
.engine-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 999px; font-size: .86rem; font-weight: 650; background: var(--accent-soft); color: var(--ink); border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); }
.badge.codename { background: color-mix(in srgb, var(--k2) 18%, transparent); border-color: color-mix(in srgb, var(--k2) 55%, transparent); }
.field.inline { flex-direction: row; align-items: center; gap: 8px; }
.field.inline select { width: auto; }
.check small { margin-left: 4px; }