:root {
  --paper: #111417;
  --surface: #191d21;
  --surface-raised: #20252a;
  --ink: #f3efe5;
  --ink-soft: #a9ada8;
  --line: #30363b;
  --verdigris: #b8d66f;
  --verdigris-dark: #91b74f;
  --amber: #f0a35b;
  --danger: #ec765c;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'Manrope', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
}

body {
  background-image: linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 32px 32px;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; margin: 0 0 0.4em; }
h1 { font-size: clamp(2.2rem, 5vw, 4.8rem); line-height: 0.98; letter-spacing: 0; }
h2 { font-size: 1.3rem; }
h3 { font-size: 1.05rem; }

a { color: var(--verdigris-dark); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem max(1.5rem, calc((100vw - 1180px) / 2));
  border-bottom: 1px solid var(--line);
  background: rgba(17, 20, 23, 0.9);
  position: relative;
  z-index: 2;
}
.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.01em;
}
.wordmark::before { content: "//"; color: var(--verdigris); font-family: var(--font-mono); font-size: 0.72rem; margin-right: 0.5rem; vertical-align: 0.25em; }
.topbar-right { display: flex; align-items: center; gap: 1.1rem; font-size: 0.92rem; }
.credits { text-decoration: none; color: var(--ink); border: 1px solid var(--line); padding: 0.3rem 0.7rem; border-radius: 4px; }
.credits-amount { font-family: var(--font-mono); font-weight: 500; color: var(--amber); }
.user-email { color: var(--ink-soft); }

.messages { max-width: 900px; margin: 1rem auto 0; padding: 0 1.5rem; }
.message { padding: 0.6rem 0.9rem; border-radius: 4px; margin-bottom: 0.5rem; font-size: 0.92rem; }
.message-success { background: #E4EEE6; border: 1px solid var(--verdigris); }
.message-info { background: #EEE9DC; border: 1px solid var(--line); }
.message-error { background: #F3E1DB; border: 1px solid var(--danger); }

.page-shell { max-width: 1380px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1100px) 180px; gap: 2rem; align-items: start; }
.page { min-width: 0; padding: 2rem 1.5rem 4rem; }

.ad-rail { display: grid; gap: 1rem; padding: 2rem 1rem 4rem 0; position: sticky; top: 0.5rem; }
.ad-slot { min-height: 220px; border: 1px dashed var(--line); background: rgba(25, 29, 33, 0.72); display: flex; flex-direction: column; justify-content: space-between; padding: 0.7rem; color: var(--ink-soft); }
.ad-label { font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; }
.ad-placeholder { align-self: center; font-family: var(--font-display); font-size: 1.05rem; color: var(--ink); writing-mode: vertical-rl; transform: rotate(180deg); }

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.92rem;
  padding: 0.5rem 1rem;
  border-radius: 3px;
  border: 1px solid var(--verdigris);
  background: var(--verdigris);
  color: #111417;
  text-decoration: none;
  cursor: pointer;
}
.btn:hover { background: var(--verdigris-dark); border-color: var(--verdigris-dark); }
.btn-quiet { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-quiet:hover { background: var(--surface-raised); border-color: var(--ink-soft); }
.btn-danger { background: var(--danger); border-color: var(--danger); }
.btn-small { padding: 0.3rem 0.6rem; font-size: 0.82rem; }

input[type=text], input[type=search], input[type=email], input[type=password], textarea, select {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  border-color: var(--line);
  background: #0d1012;
  color: var(--ink);
  width: 100%;
}

.field { margin-bottom: 0.9rem; }
.field label { display: block; font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 0.25rem; }

/* Landing */
.landing-shell { min-height: calc(100vh - 90px); display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr); gap: 5rem; align-items: center; padding: 4rem 0 6rem; }
.hero-kicker, .section-kicker { color: var(--verdigris); font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; }
.hero-copy h1 { max-width: 720px; margin-top: 0.7rem; }
.hero-copy p { max-width: 580px; color: var(--ink-soft); font-size: 1.08rem; margin: 1.5rem 0 2rem; }
.hero-actions { display: flex; gap: 0.7rem; align-items: center; flex-wrap: wrap; }
.hero-note { color: var(--ink-soft); font-family: var(--font-mono); font-size: 0.75rem; }
.hero-rail { border-left: 1px solid var(--line); padding-left: 1.4rem; }
.signal-card { border-top: 2px solid var(--verdigris); padding: 1.1rem 0; }
.signal-card strong { display: block; font-family: var(--font-display); font-size: 1.45rem; font-weight: 400; }
.signal-card span { color: var(--ink-soft); font-size: 0.84rem; }
.landing-proof { border-top: 1px solid var(--line); padding: 3rem 0 1rem; display: grid; grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr); gap: 3rem; }
.landing-proof h2 { font-size: 2rem; line-height: 1.05; margin-top: 0.6rem; }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.proof-grid article { border-top: 2px solid var(--line); padding-top: 0.8rem; }
.proof-grid strong { font-family: var(--font-display); font-size: 1.2rem; font-weight: 400; }
.proof-grid p { color: var(--ink-soft); font-size: 0.84rem; margin: 0.5rem 0 0; }

/* Authentication */
.auth-layout { min-height: calc(100vh - 150px); display: grid; grid-template-columns: minmax(0, 520px) minmax(220px, 1fr); gap: 5rem; align-items: center; max-width: 900px; margin: 0 auto; }
.auth-panel { max-width: 500px; }
.auth-panel h1 { font-size: 3.4rem; margin-top: 0.55rem; }
.auth-intro { color: var(--ink-soft); margin: 0 0 2rem; font-size: 1.02rem; }
.auth-form { max-width: 420px; }
.auth-form .field { margin-bottom: 1rem; }
.auth-form input[type=email], .auth-form input[type=password] { background: var(--surface); border-color: var(--line); min-height: 48px; }
.auth-form input:focus { outline: 2px solid var(--verdigris); outline-offset: 2px; }
.auth-form ul.errorlist, .auth-error { color: var(--danger); font-size: 0.82rem; margin: 0.3rem 0; padding: 0; list-style: none; }
.remember-field { display: flex; align-items: center; gap: 0.5rem; color: var(--ink-soft); font-size: 0.82rem; margin: 1rem 0 1.2rem; }
.remember-field input { accent-color: var(--verdigris); }
.auth-submit { width: 100%; min-height: 48px; }
.auth-divider { display: flex; align-items: center; gap: 0.7rem; max-width: 420px; color: var(--ink-soft); font-family: var(--font-mono); font-size: 0.72rem; margin: 1.4rem 0; }
.auth-divider::before, .auth-divider::after { content: ""; height: 1px; background: var(--line); flex: 1; }
.google-button { display: flex; justify-content: center; align-items: center; max-width: 420px; min-height: 48px; }
.auth-footnote { color: var(--ink-soft); font-size: 0.86rem; margin: 1.5rem 0 0.3rem; }
.auth-footnote a, .auth-forgot { color: var(--verdigris); }
.auth-forgot { font-size: 0.78rem; }
.auth-aside { border-left: 1px solid var(--line); min-height: 310px; padding: 2rem 0 2rem 2rem; display: flex; flex-direction: column; justify-content: space-between; }
.auth-mark { width: 72px; height: 72px; display: grid; place-items: center; border: 1px solid var(--verdigris); color: var(--verdigris); font-family: var(--font-mono); font-size: 1.2rem; }
.auth-aside p { color: var(--ink-soft); max-width: 220px; margin: 0.5rem 0 0; }

/* Dashboard */
.pack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.75rem;
  background: transparent;
  border: 0;
  margin-top: 1.2rem;
}
.pack-card {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.3rem;
  text-decoration: none;
  color: var(--ink);
  display: block;
}
.pack-card:hover { background: var(--surface-raised); border-color: var(--verdigris); transform: translateY(-2px); }
.pack-card .meta { font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-soft); margin-top: 0.4rem; }

.dashboard-header { display: flex; justify-content: space-between; align-items: end; gap: 1rem; margin-bottom: 2.2rem; }
.dashboard-header h1 { margin-top: 0.5rem; font-size: 3.2rem; }
.dashboard-header p { color: var(--ink-soft); margin: 0; }
.guest-banner { display: flex; align-items: center; gap: 0.8rem; flex-wrap: wrap; border: 1px solid var(--line); border-left: 3px solid var(--verdigris); background: var(--surface); padding: 0.85rem 1rem; margin: 1rem 0; color: var(--ink-soft); font-size: 0.86rem; }
.guest-banner strong { color: var(--ink); }
.local-import { justify-content: space-between; }

.new-pack-form {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 1.5rem;
  margin-top: 1.5rem;
  max-width: 560px;
}

/* Build workspace */
.pack-header { display: flex; align-items: end; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-bottom: 1.5rem; }
.pack-header h1 { font-size: 3.1rem; margin-top: 0.45rem; }
.pack-header .meta { font-family: var(--font-mono); font-size: 0.85rem; color: var(--ink-soft); }

.tabs { display: flex; border-bottom: 1px solid var(--line); gap: 0.2rem; overflow-x: auto; }
.tab-btn {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.6rem 1rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  color: var(--ink-soft);
}
.tab-btn.active { color: var(--ink); border-bottom-color: var(--verdigris); }
.tab-panel { display: none; padding-top: 1.2rem; }
.tab-panel.active { display: block; }

.search-row { display: flex; gap: 0.6rem; margin-bottom: 1rem; }
.search-row input { flex: 1; }
.search-row select { width: auto; min-width: 130px; }

.mod-list { border: 1px solid var(--line); background: var(--surface); }
.mod-loading { min-height: 110px; display: flex; align-items: center; gap: 1rem; padding: 1.2rem; color: var(--ink-soft); }
.mod-loading strong, .mod-loading span { display: block; }
.mod-loading strong { color: var(--ink); font-family: var(--font-display); font-size: 1.15rem; font-weight: 400; }
.mod-loading span { font-size: 0.82rem; }
.loading-orbit { width: 28px; height: 28px; border: 2px solid var(--line); border-top-color: var(--verdigris); border-right-color: var(--amber); border-radius: 50%; animation: orbit 0.9s linear infinite; }
@keyframes orbit { to { transform: rotate(360deg); } }
.mod-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--line);
}
.mod-row:last-child { border-bottom: none; }
.mod-row img { width: 32px; height: 32px; border-radius: 4px; background: var(--paper); object-fit: cover; }
.mod-row .title { font-weight: 500; }
.mod-row .desc { font-size: 0.85rem; color: var(--ink-soft); flex: 1; }
.mod-row .tag { font-family: var(--font-mono); font-size: 0.72rem; padding: 0.15rem 0.4rem; border-radius: 3px; background: var(--paper); color: var(--ink-soft); }
.mod-row .tag.auto { color: var(--amber); }

.panel-box { border: 1px solid var(--line); background: var(--surface); padding: 1rem; margin-bottom: 1rem; }
.panel-box h3 { margin-bottom: 0.6rem; }
.config-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.config-grid textarea { min-height: 240px; font-family: var(--font-mono); font-size: 0.82rem; resize: vertical; }
.config-editor { margin-top: 1rem; }
.config-editor label { display: block; font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-soft); margin-bottom: 0.3rem; }
.config-editor textarea { width: 100%; min-height: 180px; font-family: var(--font-mono); font-size: 0.82rem; resize: vertical; }
.config-empty { border: 1px dashed var(--line); padding: 1rem; color: var(--ink-soft); }
.config-empty strong { color: var(--ink); font-family: var(--font-display); font-size: 1.1rem; font-weight: 400; }
.config-empty p { margin: 0.35rem 0 0; font-size: 0.85rem; }
.conflict-item { color: var(--danger); font-size: 0.9rem; margin-bottom: 0.3rem; }
.missing-item { font-size: 0.9rem; margin-bottom: 0.3rem; }
.empty-note { color: var(--ink-soft); font-size: 0.9rem; }

/* Quest tree */
.quest-toolbar { display: flex; gap: 0.6rem; margin-bottom: 0.8rem; align-items: center; flex-wrap: wrap; }
.quest-toolbar .spacer { flex: 1; }
.quest-source-tag { font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-soft); }

#quest-canvas-wrap { border: 1px solid var(--line); background: repeating-linear-gradient(0deg, var(--surface), var(--surface) 24px, #F3EEE1 24px, #F3EEE1 25px), repeating-linear-gradient(90deg, transparent, transparent 24px, #F3EEE1 24px, #F3EEE1 25px); height: 520px; overflow: auto; position: relative; }
#quest-canvas { position: relative; min-width: 100%; min-height: 100%; }

.quest-node {
  position: absolute;
  width: 190px;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--verdigris);
  border-radius: 3px;
  padding: 0.55rem 0.65rem;
  cursor: grab;
  font-size: 0.85rem;
}
.quest-node .qtitle { font-weight: 600; margin-bottom: 0.2rem; }
.quest-node .qmod { font-family: var(--font-mono); font-size: 0.7rem; color: var(--ink-soft); }
.quest-node textarea, .quest-node input { font-size: 0.78rem; padding: 0.25rem; margin-top: 0.2rem; }

svg#dep-lines { position: absolute; top: 0; left: 0; pointer-events: none; }

.chapter-column { }
.chapter-label { font-family: var(--font-mono); font-size: 0.75rem; color: var(--ink-soft); position: absolute; }

.small-note { font-size: 0.82rem; color: var(--ink-soft); margin-top: 0.4rem; }

@media (max-width: 720px) {
  .page-shell { display: block; }
  .ad-rail { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 0 1.5rem 3rem; }
  .ad-slot { min-height: 110px; }
  .ad-placeholder { writing-mode: initial; transform: none; }
  .landing-shell { grid-template-columns: 1fr; gap: 3rem; padding: 2rem 0 4rem; }
  .hero-rail { border-left: 0; border-top: 1px solid var(--line); padding: 1rem 0 0; }
  .auth-layout { display: block; min-height: auto; padding: 2rem 0 4rem; }
  .auth-panel h1 { font-size: 2.8rem; }
  .auth-aside { min-height: 150px; margin-top: 3rem; padding: 1.2rem 0 0; border-left: 0; border-top: 1px solid var(--line); }
  .dashboard-header { align-items: start; flex-direction: column; }
  .landing-proof { grid-template-columns: 1fr; gap: 1.5rem; }
  .proof-grid { grid-template-columns: 1fr; }
  .dashboard-header h1, .pack-header h1 { font-size: 2.6rem; }
  .config-grid { grid-template-columns: 1fr; }
}