:root {
  --bg: #10141b;
  --bg-2: #161c26;
  --panel: #1b2330;
  --line: #2a3646;
  --text: #e7edf5;
  --muted: #93a1b5;
  --accent: #4fd0c8;
  --accent-2: #d9781a;
  --star: #f4c245;
  --danger: #d9576a;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(0,0,0,.35);
}
@media (prefers-color-scheme: light) {
  :root {
    --bg: #eef2f7; --bg-2: #e5ebf3; --panel: #ffffff; --line: #d5deea;
    --text: #16202e; --muted: #5c6b7e; --shadow: 0 6px 20px rgba(30,50,80,.12);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  min-height: 100dvh; display: flex; flex-direction: column;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2 { margin: 0 0 .2em; font-weight: 700; letter-spacing: .2px; }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 12px;
  padding: 12px clamp(14px, 4vw, 30px);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 22px; height: 22px; border-radius: 6px;
  background:
    linear-gradient(135deg, var(--accent) 0 50%, transparent 50%),
    linear-gradient(315deg, var(--accent-2) 0 50%, transparent 50%),
    var(--panel);
  box-shadow: inset 0 0 0 1.5px var(--line);
}
#primary-nav { margin-left: auto; display: flex; gap: 6px; }
#primary-nav a {
  color: var(--text); padding: 8px 14px; border-radius: 10px; font-weight: 600;
}
#primary-nav a:hover { background: var(--bg-2); text-decoration: none; }
#primary-nav a[aria-current="page"] { color: var(--accent); background: var(--bg-2); }
.badge {
  display: inline-grid; place-items: center; min-width: 20px; height: 20px; padding: 0 6px;
  border-radius: 999px; background: var(--accent); color: #06231f; font-size: .78rem; font-weight: 800;
}
.nav-toggle {
  display: none; margin-left: auto; width: 42px; height: 38px; border: 1px solid var(--line);
  background: var(--panel); border-radius: 10px; cursor: pointer; padding: 9px 10px;
}
.nav-toggle span { display: block; height: 2px; background: var(--text); border-radius: 2px; margin: 4px 0; }

@media (max-width: 620px) {
  .nav-toggle { display: block; }
  #primary-nav {
    position: absolute; top: 100%; left: 0; right: 0; margin: 0;
    flex-direction: column; gap: 2px; padding: 8px;
    background: var(--bg-2); border-bottom: 1px solid var(--line);
    display: none;
  }
  #primary-nav.open { display: flex; }
  #primary-nav a { padding: 12px 14px; }
}

/* ---------- layout ---------- */
.wrap {
  width: min(1040px, 100%); margin: 0 auto; flex: 1;
  padding: clamp(16px, 3vw, 30px);
  display: grid; gap: clamp(18px, 3vw, 30px);
  grid-template-columns: 1.15fr .85fr; align-items: start;
}
@media (max-width: 860px) { .wrap { grid-template-columns: 1fr; } }

/* ---------- tile stage ---------- */
.stage { display: grid; gap: 14px; }
.tile-card { position: relative; }
.tile-frame {
  position: relative; aspect-ratio: 1 / 1; width: 100%;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
}
.tile-frame svg { display: block; width: 100%; height: 100%; }
.star-btn { font-size: 1rem; line-height: 1; color: var(--muted); }
.star-btn.active { color: var(--star); border-color: var(--star); text-shadow: 0 0 8px rgba(244,194,69,.45); }

/* ---------- map grid ---------- */
.map-frame {
  aspect-ratio: var(--cols, 4) / var(--rows, 4); width: 100%;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: repeat(var(--cols, 4), 1fr);
  grid-template-rows: repeat(var(--rows, 4), 1fr);
}
.map-cell { position: relative; overflow: hidden; }
.map-cell svg { display: block; width: 100%; height: 100%; transform: rotate(var(--rot, 0deg)); }
.map-offline { grid-column: 1 / -1; place-self: center; color: var(--muted); padding: 24px; text-align: center; max-width: 30ch; }
.map-note { color: var(--muted); font-size: .86rem; margin: 0; }

.code-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.code-label {
  flex: 1; min-width: 0; overflow-x: auto; white-space: nowrap;
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .92rem;
  padding: 8px 12px; background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; color: var(--muted);
}
input.code-label { color: var(--text); text-transform: uppercase; }
input.code-label:focus { outline: none; border-color: var(--accent); }
input.code-label::placeholder { color: var(--muted); text-transform: none; opacity: .8; }
.axis-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font-size: .78rem; padding: 4px 9px; border-radius: 999px;
  background: var(--bg-2); border: 1px solid var(--line); color: var(--muted);
}
.chip.locked { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); }

/* ---------- form panel ---------- */
.panel {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(16px, 2.4vw, 22px); box-shadow: var(--shadow);
}
.panel-head { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.status { margin: 0; color: var(--muted); font-size: .85rem; }
.hint { color: var(--muted); font-size: .88rem; margin: .4em 0 1em; }
.fields { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.field { display: grid; gap: 5px; }
.field.wide { margin-top: 12px; }
.field.wide.first { margin-top: 0; }
.field.wide.first + .fields { margin-top: 14px; }
.field > span { font-size: .8rem; color: var(--muted); text-transform: capitalize; }
select, .field input[type="number"] {
  width: 100%; padding: 10px 12px; border-radius: 10px; font: inherit;
  background: var(--bg-2); color: var(--text); border: 1px solid var(--line);
}
select:disabled { opacity: .5; }
.panel.disabled .hint { opacity: .6; }
.field-skeleton, .skeleton {
  background: linear-gradient(100deg, var(--bg-2) 30%, var(--line) 50%, var(--bg-2) 70%);
  background-size: 200% 100%; animation: sh 1.2s infinite; border-radius: 10px;
}
.field-skeleton { height: 58px; }
.skeleton { position: absolute; inset: 0; }
@keyframes sh { to { background-position: -200% 0; } }

/* ---------- buttons ---------- */
.btn {
  font: inherit; font-weight: 700; cursor: pointer; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg-2); color: var(--text);
  padding: 10px 16px; transition: transform .1s ease, background .1s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: none; }
.btn.small { padding: 7px 11px; font-size: .84rem; }
.btn.ghost { background: transparent; color: var(--muted); }
.btn.primary { background: var(--accent); color: #06231f; border-color: transparent; }
.btn.danger { color: var(--danger); }
.btn.block { width: 100%; margin-top: 16px; padding: 13px; font-size: 1.02rem; }

/* ---------- favourites ---------- */
.empty { color: var(--muted); background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px; text-align: center; }
.fav-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
.fav-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.fav-thumb { aspect-ratio: 1/1; background: var(--bg-2); }
.fav-thumb svg { display: block; width: 100%; height: 100%; }
.fav-meta { padding: 10px 12px 4px; display: grid; gap: 4px; }
.fav-name { font-weight: 700; text-transform: capitalize; font-size: .92rem; }
.fav-code { font-family: ui-monospace, monospace; font-size: .72rem; color: var(--muted); overflow-x: auto; white-space: nowrap; }
.fav-actions { display: flex; gap: 6px; padding: 8px 12px 12px; flex-wrap: wrap; }

/* ---------- footer / toast ---------- */
.site-footer { border-top: 1px solid var(--line); color: var(--muted); font-size: .84rem;
  padding: 18px clamp(14px, 4vw, 30px); text-align: center; }
.site-footer p { margin: 0; }
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%) translateY(20px);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px;
  font-weight: 600; font-size: .9rem; opacity: 0; pointer-events: none; transition: .22s ease; z-index: 50;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }