:root {
  --bg: #0f1419;
  --card: #171e26;
  --card-2: #1e2731;
  --border: #2a3542;
  --text: #e6edf3;
  --muted: #8b98a7;
  --accent: #2ea8ff;
  --accent-soft: rgba(46, 168, 255, 0.14);
  --good: #3fb950;
  --warn: #d29922;
  --bad: #f85149;
  --code-bg: #0b0f14;
  --k: #79c0ff;
  --s: #a5d6ff;
  --c: #6e7781;
  --radius: 10px;
  color-scheme: dark;
}

/* Light theme: follows the system unless the theme toggle set data-theme on <html>. */
:root[data-theme="light"] {
  --bg: #f5f7fa;
  --card: #ffffff;
  --card-2: #f0f3f7;
  --border: #d8dee6;
  --text: #1b232c;
  --muted: #5d6b7a;
  --accent: #0969da;
  --accent-soft: rgba(9, 105, 218, 0.1);
  --good: #1a7f37;
  --warn: #9a6700;
  --bad: #cf222e;
  --code-bg: #f6f8fa;
  --k: #0550ae;
  --s: #0a3069;
  --c: #6e7781;
  color-scheme: light;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f5f7fa;
    --card: #ffffff;
    --card-2: #f0f3f7;
    --border: #d8dee6;
    --text: #1b232c;
    --muted: #5d6b7a;
    --accent: #0969da;
    --accent-soft: rgba(9, 105, 218, 0.1);
    --good: #1a7f37;
    --warn: #9a6700;
    --bad: #cf222e;
    --code-bg: #f6f8fa;
    --k: #0550ae;
    --s: #0a3069;
    --c: #6e7781;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

h1, h2 { margin: 0; }
h1 { font-size: 18px; }
h2 { font-size: 15px; margin-bottom: 10px; }
code { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 0.92em; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
a { color: var(--accent); }

/* ---------- Top bar ---------- */
.topbar {
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between;
  padding: 16px 24px; border-bottom: 1px solid var(--border); background: var(--card);
  position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; gap: 12px; align-items: center; }
.brand p { margin: 0; color: var(--muted); font-size: 13px; }
.logo { font-size: 28px; color: var(--accent); }
.tabs { display: flex; gap: 6px; }
.tab {
  background: transparent; color: var(--muted); border: 1px solid var(--border);
  padding: 8px 14px; border-radius: 999px; cursor: pointer; font: inherit; font-weight: 600;
}
.tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.count {
  display: inline-block; min-width: 20px; padding: 0 6px; margin-left: 4px;
  border-radius: 999px; background: rgba(255, 255, 255, 0.2); font-size: 12px; text-align: center;
}
.tab:not(.active) .count { background: var(--accent-soft); color: var(--accent); }

/* ---------- Layout ---------- */
.view { max-width: 1400px; margin: 0 auto; padding: 20px 24px 60px; }
.builder { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.col-right { position: sticky; top: 92px; }
@media (max-width: 1000px) {
  .builder { grid-template-columns: 1fr; }
  .col-right { position: static; }
}
@media (max-width: 600px) {
  .view { padding: 16px 16px 40px; }
  .topbar { padding: 12px 16px; position: static; }
}

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px; margin-bottom: 16px;
}

/* ---------- Buttons ---------- */
.btn {
  font: inherit; font-weight: 600; cursor: pointer; border-radius: 8px; padding: 8px 14px;
  border: 1px solid var(--border); background: var(--card-2); color: var(--text);
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; }
.btn.small { padding: 5px 10px; font-size: 12px; }
.btn.added { background: var(--good); border-color: var(--good); color: #fff; }

/* ---------- Picker ---------- */
.goal-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 8px; }
.goal {
  display: flex; gap: 10px; align-items: center; text-align: left;
  padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--card-2); color: var(--text); font: inherit; cursor: pointer;
}
.goal .ico { font-size: 20px; }
.goal.on { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }

.segmented { display: flex; flex-wrap: wrap; gap: 8px; }
.segmented button {
  font: inherit; padding: 8px 14px; border-radius: 8px; cursor: pointer;
  border: 1px solid var(--border); background: var(--card-2); color: var(--text);
}
.segmented button.on { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }

.results-head { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.results-head h2 { margin: 0; }
.goal-result { border-top: 1px solid var(--border); padding: 14px 0 4px; }
.goal-result h3 { margin: 0 0 8px; font-size: 14px; }
.suggestion {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
  padding: 10px 12px; border-radius: 8px; background: var(--card-2); margin-bottom: 8px;
  border: 1px solid transparent;
}
.suggestion.rec { border-color: var(--good); }
.suggestion .info { flex: 1 1 300px; }
.suggestion .title { font-weight: 600; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.suggestion p { margin: 2px 0 0; color: var(--muted); font-size: 13px; }

.badge { font-size: 11px; font-weight: 600; padding: 1px 8px; border-radius: 999px; border: 1px solid currentColor; }
.badge.d1 { color: var(--good); }
.badge.d2 { color: var(--warn); }
.badge.d3 { color: var(--bad); }
.badge.rec { color: #fff; background: var(--good); border-color: var(--good); }
.badge.ext { color: var(--muted); }

/* ---------- Builder ---------- */
.settings-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.settings-grid label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); font-weight: 600; }
.settings-grid .wide { grid-column: span 4; }
.settings-grid .half { grid-column: span 2; }
.settings-grid .check-label { flex-direction: row; align-items: center; align-self: end; gap: 8px; padding-bottom: 6px; color: var(--text); }
.settings-grid .check-label input { width: auto; }
@media (max-width: 600px) {
  .settings-grid { grid-template-columns: 1fr 1fr; }
  .settings-grid .wide, .settings-grid .half { grid-column: span 2; }
}
input, select {
  font: inherit; color: var(--text); background: var(--card-2);
  border: 1px solid var(--border); border-radius: 6px; padding: 6px 8px; width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.catalog-head { display: flex; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.catalog-head h2 { margin: 0; white-space: nowrap; }
.catalog-head input { max-width: 240px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.chip {
  font: inherit; font-size: 12px; padding: 3px 10px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--border); background: transparent; color: var(--muted);
}
.chip.on { background: var(--accent); border-color: var(--accent); color: #fff; }

.app-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; }
.app {
  text-align: left; font: inherit; color: var(--text); cursor: pointer;
  padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--card-2);
  display: flex; flex-direction: column; gap: 4px;
}
.app:hover { border-color: var(--accent); }
.app.on { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }
.app .row { display: flex; justify-content: space-between; align-items: center; gap: 6px; }
.app .name { font-weight: 600; }
.app .check {
  width: 18px; height: 18px; border-radius: 5px; border: 1px solid var(--border);
  display: grid; place-items: center; font-size: 12px; flex: none;
}
.app.on .check { background: var(--accent); border-color: var(--accent); color: #fff; }
.app p { margin: 0; font-size: 12px; color: var(--muted); }
.empty { color: var(--muted); padding: 12px 0; }

.sel-app { border-top: 1px solid var(--border); padding: 10px 0; }
.sel-app:first-child { border-top: 0; }
.sel-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.sel-head .name { font-weight: 600; }
.sel-note { font-size: 12px; color: var(--muted); margin: 4px 0 0; }
.ports { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.port {
  display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--muted);
  background: var(--card-2); border: 1px solid var(--border); border-radius: 6px; padding: 4px 8px;
}
.port input { width: 72px; padding: 2px 6px; }
.port.conflict { border-color: var(--bad); }
.port.conflict input { border-color: var(--bad); }
.icon-btn { background: none; border: 0; color: var(--muted); cursor: pointer; font-size: 16px; padding: 2px 6px; }
.icon-btn:hover { color: var(--bad); }

.warn {
  border: 1px solid var(--warn); background: color-mix(in srgb, var(--warn) 12%, transparent);
  border-radius: 8px; padding: 10px 12px; margin-bottom: 10px; font-size: 13px;
}
.warn.bad { border-color: var(--bad); background: color-mix(in srgb, var(--bad) 12%, transparent); }
.warn.info { border-color: var(--accent); background: var(--accent-soft); }
.warn ul { margin: 6px 0; padding-left: 18px; }
.warn .btn { margin-top: 4px; }

/* ---------- Output ---------- */
.out-tabs { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-bottom: 10px; }
.out-tabs .spacer { flex: 1; }
.out-tab {
  font: 600 12px ui-monospace, Consolas, monospace; padding: 5px 10px; border-radius: 6px; cursor: pointer;
  background: transparent; border: 1px solid var(--border); color: var(--muted);
}
.out-tab.on { color: var(--text); border-color: var(--accent); background: var(--accent-soft); }
pre {
  margin: 0; background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; overflow: auto; max-height: 60vh; font-size: 12.5px; line-height: 1.55;
}
pre code { font-size: inherit; }
.k { color: var(--k); }
.s { color: var(--s); }
.c { color: var(--c); font-style: italic; }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 8px 16px; border-radius: 8px; font-weight: 600;
  z-index: 20;
}

/* ---------- Getting started + links ---------- */
.guide summary { cursor: pointer; list-style-position: outside; margin-left: 16px; }
.guide summary h2 { display: inline; margin: 0; }
.guide ol { margin: 12px 0 8px; padding-left: 22px; }
.guide li { margin-bottom: 8px; }
.guide pre { margin-top: 6px; max-height: none; }

.links { list-style: none; margin: 0; padding: 0; }
.links li { border-top: 1px solid var(--border); padding: 8px 0; overflow-wrap: anywhere; }
.links li:first-child { border-top: 0; }
.links .small { margin-top: 2px; }

button:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- Goal groups, deploy picker, catalog groups ---------- */
.group-title { font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin: 16px 0 8px; }
.group-title:first-child { margin-top: 4px; }

.deploy-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px; }
.deploy {
  display: flex; gap: 10px; align-items: center; text-align: left;
  padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--card-2); color: var(--text); font: inherit; cursor: pointer;
}
.deploy .ico { font-size: 22px; }
.deploy small { display: block; color: var(--muted); font-size: 12px; }
.deploy.on { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }

.cat-group { margin-bottom: 12px; }
.cat-group summary { cursor: pointer; margin-bottom: 8px; }
.cat-group summary h3 { display: inline; font-size: 14px; margin: 0; }
.cat-group summary h3 .muted { font-weight: 400; font-size: 12px; margin-left: 4px; }
.cat-group > p { margin: 0 0 8px; }
.cat-group[data-group="top"] .app-grid { padding: 10px; border-radius: 10px; background: var(--accent-soft); }
.rank {
  display: inline-grid; place-items: center; width: 20px; height: 20px; margin-right: 6px; border-radius: 50%;
  background: var(--accent); color: #fff; font-size: 11px;
}
#catalog { max-height: 75vh; overflow: auto; padding-right: 4px; }
@media (max-width: 1000px) { #catalog { max-height: none; } }

/* ---------- Goal dropdowns ---------- */
.goal-group { border: 1px solid var(--border); border-radius: 8px; margin-bottom: 8px; background: var(--card-2); }
.goal-group summary {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; cursor: pointer; list-style: none;
}
.goal-group summary::-webkit-details-marker { display: none; }
.goal-group summary::before { content: "▸"; color: var(--muted); transition: transform 0.15s; }
.goal-group[open] summary::before { transform: rotate(90deg); }
.goal-group .group-name { font-weight: 600; }
.goal-group .goal-grid { padding: 0 12px 12px; }
.goal-group .goal { background: var(--card); }

.footer { max-width: 1400px; margin: 0 auto; padding: 0 24px 40px; color: var(--muted); font-size: 12px; text-align: center; }

/* ---------- Theme toggle + experience level ---------- */
.top-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.theme-toggle {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer; font: inherit; font-size: 13px;
  background: transparent; color: var(--muted); border: 1px solid var(--border); border-radius: 999px; padding: 4px 6px 4px 10px;
}
.theme-toggle .track {
  position: relative; width: 38px; height: 22px; border-radius: 999px; background: var(--card-2); border: 1px solid var(--border);
}
.theme-toggle .thumb {
  position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: var(--accent);
  display: grid; place-items: center; font-size: 10px; transition: transform 0.15s;
}
.theme-toggle[aria-checked="true"] .thumb { transform: translateX(16px); }

.level-help { margin: 10px 0 0; }
.app.above { opacity: 0.6; }
.app.above:hover, .app.above.on { opacity: 1; }