:root {
  color-scheme: dark;
  --bg: #111414;
  --panel: #1c2020;
  --panel-2: #222827;
  --line: #45504c;
  --text: #f1e7d6;
  --muted: #b8aa96;
  --accent: #b85f68;
  --accent-2: #7db7a3;
  --good: #7fb37b;
  --danger: #d45b56;
  --font-scale: 1;
}

* { box-sizing: border-box; }
a { color: var(--accent-2); }
.source-link { margin-bottom: 1rem; font-size: .85rem; }
.guide-map { margin: 1.5rem 0 0; }
.guide-map img { display: block; width: 100%; height: auto; }
.content, .step-nav button, h1, h2, h3 { overflow-wrap: anywhere; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 0%, rgba(184, 95, 104, .22), transparent 28rem),
    linear-gradient(180deg, #111616 0%, #0d1010 100%);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem clamp(1rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
  background: rgba(17, 20, 20, .88);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(12px);
}

h1, h2, h3, p { margin: 0; }
h1 { font-size: clamp(1.35rem, 2.3vw, 2rem); font-weight: 800; }
.eyebrow {
  color: var(--accent-2);
  font-size: .78rem;
  text-transform: uppercase;
  font-weight: 800;
}

button {
  border: 1px solid var(--line);
  background: #202827;
  color: var(--text);
  min-height: 2.35rem;
  padding: .45rem .75rem;
  border-radius: 6px;
  font-weight: 800;
  cursor: pointer;
}

button:hover, button[aria-selected="true"] { border-color: var(--accent-2); background: #293533; }
button:disabled { opacity: .45; cursor: not-allowed; }

.toolbar { display: flex; gap: .4rem; flex-wrap: wrap; justify-content: flex-end; }
.layout {
  display: grid;
  grid-template-columns: minmax(16rem, 22rem) minmax(0, 1fr);
  gap: 1.2rem;
  padding: 1.2rem clamp(1rem, 3vw, 2rem) 2rem;
  max-width: 1180px;
  margin: 0 auto;
}

.sidebar {
  position: sticky;
  top: 8rem;
  max-height: calc(100dvh - 9rem);
  overflow-y: auto;
  align-self: start;
  display: grid;
  gap: .9rem;
}

.campaign-card, .step-card {
  border: 1px solid var(--line);
  background: rgba(28, 32, 32, .92);
  border-radius: 8px;
}

.campaign-card { padding: 1rem; }
.campaign-card h2 { font-size: 1rem; margin-bottom: .75rem; }
.tabs { display: grid; gap: .45rem; }
.tabs button { text-align: left; display: flex; justify-content: space-between; gap: .5rem; }

.progress-wrap { margin-top: 1rem; }
.progress-label {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: .85rem;
  margin-bottom: .4rem;
}
.progress-bar {
  height: .45rem;
  border-radius: 999px;
  background: #0d1010;
  overflow: hidden;
  border: 1px solid #313b38;
}
.progress-bar span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.step-nav {
  display: grid;
  gap: .35rem;
  max-height: none;
  overflow: auto;
  padding-right: .15rem;
}
.step-nav button {
  text-align: left;
  font-weight: 700;
  color: var(--muted);
  background: rgba(28, 32, 32, .68);
}
.step-nav button.current { color: var(--text); border-color: var(--accent); }
.step-nav button.done::after { content: "✓"; float: right; color: var(--good); }

.reader { min-width: 0; scroll-margin-top: 8rem; }
.reader-head { padding: .4rem .2rem 1rem; }
.reader-head h2 { font-size: clamp(1.6rem, 3vw, 2.5rem); margin-top: .2rem; }
.summary { color: var(--muted); line-height: 1.6; margin-top: .5rem; max-width: 70ch; }
.step-card { padding: clamp(1rem, 2.5vw, 1.6rem); }
.step-card.spoiler { border-color: rgba(212, 91, 86, .8); }
.step-meta {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--muted);
  font-size: .85rem;
  margin-bottom: .5rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: .18rem .5rem;
  background: #24302d;
  color: var(--accent-2);
  font-weight: 900;
}
.step-card h3 { font-size: clamp(1.15rem, 2vw, 1.55rem); margin-bottom: .8rem; }
.content {
  font-size: calc(1.03rem * var(--font-scale));
  line-height: 1.75;
}
.content p + p, .content ul + p, .content p + ul { margin-top: .85rem; }
.content ul { margin: .4rem 0 0; padding-left: 1.25rem; }
.content li + li { margin-top: .45rem; }
.note {
  margin-top: 1rem;
  padding: .85rem;
  border-left: 4px solid var(--accent-2);
  background: rgba(125, 183, 163, .1);
  color: #d9eee7;
}
.spoiler-lock {
  display: grid;
  gap: .75rem;
  padding: 1rem;
  border: 1px dashed var(--danger);
  background: rgba(212, 91, 86, .08);
  border-radius: 8px;
}
.spoiler-lock p { color: var(--muted); }
.hidden { display: none; }

.pager {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: .6rem;
  margin-top: .9rem;
}
#prevStep { justify-self: start; }
#nextStep { justify-self: end; }

footer {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem) 2rem;
  color: var(--muted);
  font-size: .85rem;
}
footer a { color: var(--accent-2); }

@media (max-width: 820px) {
  .topbar { position: static; align-items: flex-start; flex-direction: column; }
  .layout { grid-template-columns: 1fr; }
  .reader { scroll-margin-top: 1rem; }
  .sidebar { position: static; max-height: none; overflow: visible; }
  .step-nav { max-height: 12rem; grid-template-columns: repeat(auto-fit, minmax(9rem, 1fr)); }
  button { min-height: 44px; }
  .pager { grid-template-columns: 1fr; }
  #prevStep, #nextStep { justify-self: stretch; }
}