/* ═══════════════════════════════════════════════════════
   THE BUTTERFLY EFFECT — butterfly.css
   Palette: #f2f0ed bg · #111 text · #cc0000 red · #3a3a3a border
   ═══════════════════════════════════════════════════════ */

:root {
  --bf-bg:          #f2f0ed;
  --bf-bg-alt:      #e8e6e1;
  --bf-bg-card:     #efefed;
  --bf-text:        #111111;
  --bf-text-muted:  #555555;
  --bf-red:         #cc0000;
  --bf-red-dark:    #8b0000;
  --bf-red-light:   #f5e0e0;
  --bf-border:      #3a3a3a;
  --bf-border-light:#b0aca4;
  --bf-perfect:     #111111;
  --bf-worst:       #cc0000;
  --bf-font-serif:  'IM Fell English', Georgia, serif;
  --bf-font-mono:   'IBM Plex Mono', 'Courier New', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body.bf-body {
  background: var(--bf-bg);
  color: var(--bf-text);
  font-family: var(--bf-font-mono);
  font-size: 0.9rem;
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Typography ───────────────────────────────────────── */

h1, h2, h3, h4 {
  font-family: var(--bf-font-serif);
  font-weight: 400;
  line-height: 1.2;
  color: var(--bf-text);
}

h1 { font-size: 2.2rem; }
h2 { font-size: 1.7rem; }
h3 { font-size: 1.3rem; }

p { margin-bottom: 0.9rem; }
a { color: var(--bf-red); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Header ───────────────────────────────────────────── */

.bf-header {
  border-bottom: 1px solid var(--bf-border);
  background: var(--bf-bg);
  padding: 0 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  overflow: hidden; /* prevent any overflow on narrow screens */
}

.bf-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.bf-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--bf-text);
}

.bf-logo-symbol {
  font-size: 1.5rem;
  color: var(--bf-red);
  font-family: var(--bf-font-serif);
}

.bf-logo-text {
  font-family: var(--bf-font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.03em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bf-nav { display: flex; align-items: center; gap: 1.5rem; flex-shrink: 0; }

.bf-logo { flex-shrink: 1; min-width: 0; }

.bf-nav-link {
  font-family: var(--bf-font-mono);
  font-size: 0.8rem;
  color: var(--bf-text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  transition: color 0.15s;
}

.bf-nav-link:hover { color: var(--bf-text); text-decoration: none; }

.bf-nav-new {
  background: var(--bf-red);
  color: #fff !important;
  padding: 0.3rem 0.8rem;
  border: 1px solid var(--bf-red-dark);
}

.bf-nav-new:hover { background: var(--bf-red-dark); text-decoration: none; }

.bf-nav-theatre {
  opacity: 0.5;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.bf-nav-theatre:hover { opacity: 0.85; text-decoration: none; }

/* ── Main & Footer ────────────────────────────────────── */

.bf-main { flex: 1; padding: 2rem 1.5rem; max-width: 1200px; margin: 0 auto; width: 100%; }

.bf-footer {
  border-top: 1px solid var(--bf-border);
  padding: 1rem 2rem;
  font-size: 0.75rem;
  color: var(--bf-text-muted);
  font-family: var(--bf-font-mono);
  letter-spacing: 0.05em;
}

.bf-footer-inner { max-width: 1200px; margin: 0 auto; text-align: center; }

/* ── Buttons ──────────────────────────────────────────── */

.bf-btn {
  display: inline-block;
  font-family: var(--bf-font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--bf-border);
  background: transparent;
  color: var(--bf-text);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  text-decoration: none;
}

.bf-btn:hover { background: var(--bf-border); color: #fff; text-decoration: none; }

.bf-btn-red {
  border-color: var(--bf-red);
  color: var(--bf-red);
}
.bf-btn-red:hover { background: var(--bf-red); color: #fff; }

.bf-btn-solid {
  background: var(--bf-text);
  color: var(--bf-bg);
  border-color: var(--bf-text);
}
.bf-btn-solid:hover { background: var(--bf-red); border-color: var(--bf-red); color: #fff; }

.bf-btn:disabled, .bf-btn[disabled] {
  opacity: 0.4;
  pointer-events: none;
}

/* ── Divider ──────────────────────────────────────────── */

.bf-divider {
  border: none;
  border-top: 1px solid var(--bf-border-light);
  margin: 2rem 0;
}

/* ── INDEX PAGE ───────────────────────────────────────── */

.bf-index-hero {
  text-align: center;
  padding: 4rem 1rem 3rem;
  border-bottom: 1px solid var(--bf-border-light);
  margin-bottom: 3rem;
}

.bf-index-eyebrow {
  font-family: var(--bf-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--bf-red);
  margin-bottom: 1rem;
}

.bf-index-title {
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.bf-index-subtitle {
  color: var(--bf-text-muted);
  font-size: 0.9rem;
  max-width: 500px;
  margin: 0 auto 2rem;
}

.bf-story-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.bf-story-card {
  border: 1px solid var(--bf-border);
  background: var(--bf-bg-card);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--bf-text);
  transition: border-color 0.15s, background 0.15s;
  position: relative;
}

.bf-story-card:hover {
  border-color: var(--bf-red);
  background: var(--bf-bg);
  text-decoration: none;
  color: var(--bf-text);
}

.bf-story-card-name {
  font-family: var(--bf-font-serif);
  font-size: 1.2rem;
}

.bf-story-card-title {
  font-size: 0.8rem;
  color: var(--bf-text-muted);
  font-style: italic;
}

.bf-story-card-progress {
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.bf-progress-bar-wrap {
  flex: 1;
  height: 3px;
  background: var(--bf-border-light);
}

.bf-progress-bar-fill {
  height: 100%;
  background: var(--bf-red);
  transition: width 0.3s;
}

.bf-story-card-pct {
  font-size: 0.75rem;
  color: var(--bf-text-muted);
  font-family: var(--bf-font-mono);
  white-space: nowrap;
}

.bf-badge {
  display: inline-block;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.15rem 0.4rem;
  border: 1px solid currentColor;
  font-family: var(--bf-font-mono);
}

.bf-badge-complete { color: var(--bf-text-muted); }
.bf-badge-active { color: var(--bf-red); }

/* ── SYNOPSIS CARD ───────────────────────────────────────── */

.bf-synopsis-card {
  max-width: 680px;
  margin: 0 auto 2.5rem;
  padding: 1.5rem 2rem;
  border: 1px solid var(--bf-border-light);
  border-left: 3px solid var(--bf-red);
  background: #fff;
  position: relative;
}

.bf-synopsis-eyebrow {
  font-family: var(--bf-font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bf-red);
  margin-bottom: 0.75rem;
}

.bf-synopsis-text {
  font-family: var(--bf-font-serif);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--bf-text);
  font-style: italic;
}

.bf-appearance-aside {
  max-width: 680px;
  margin: -1.5rem auto 2rem;
  padding: 0.75rem 1.25rem 0.75rem 1rem;
  border-left: 2px solid var(--bf-border-light);
  opacity: 0.65;
}

.bf-appearance-label {
  display: block;
  font-family: var(--bf-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bf-text-muted);
  margin-bottom: 0.25rem;
}

.bf-appearance-text {
  font-family: var(--bf-font-serif);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--bf-text-muted);
  font-style: italic;
  margin: 0;
}

.bf-story-card-synopsis {
  font-family: var(--bf-font-serif);
  font-size: 0.78rem;
  color: var(--bf-text-muted);
  font-style: italic;
  line-height: 1.5;
  margin-top: 0.25rem;
}

.bf-empty-state {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--bf-text-muted);
}

.bf-empty-state p { font-size: 0.9rem; margin-bottom: 1.5rem; }

/* ── SETUP PAGE ───────────────────────────────────────── */

.bf-setup-page {
  max-width: 640px;
  margin: 0 auto;
  padding: 2rem 0;
}

.bf-setup-eyebrow {
  font-family: var(--bf-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--bf-red);
  margin-bottom: 0.5rem;
}

.bf-setup-title { margin-bottom: 0.5rem; }

.bf-setup-description {
  color: var(--bf-text-muted);
  margin-bottom: 2rem;
  font-size: 0.875rem;
}

.bf-setup-description em { color: var(--bf-text); font-style: normal; }

.bf-textarea-wrap { position: relative; margin-bottom: 0.4rem; }

.bf-textarea {
  width: 100%;
  background: #fff;
  border: 1px solid var(--bf-border);
  color: var(--bf-text);
  font-family: var(--bf-font-serif);
  font-size: 1rem;
  line-height: 1.7;
  padding: 1rem;
  resize: vertical;
  min-height: 160px;
  outline: none;
}

.bf-textarea:focus { border-color: var(--bf-text); }

.bf-char-counter {
  text-align: right;
  font-family: var(--bf-font-mono);
  font-size: 0.72rem;
  color: var(--bf-text-muted);
  margin-bottom: 1.5rem;
}

.bf-char-counter.over { color: var(--bf-red); }

.bf-setup-hint {
  font-size: 0.78rem;
  color: var(--bf-text-muted);
  border-left: 2px solid var(--bf-border-light);
  padding-left: 0.75rem;
  margin-bottom: 2rem;
  font-style: italic;
}

/* ── Setup divider ────────────────────────────────────── */
.bf-setup-divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  color: var(--bf-text-muted);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.bf-setup-divider::before,
.bf-setup-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--bf-border-light);
}

/* ── "Let Fate Choose" primary button ────────────────── */
.bf-btn-surprise-primary {
  width: 100%;
  text-align: center;
  font-size: 1.1rem;
  padding: 1rem 1.4rem;
  letter-spacing: 0.04em;
  margin-bottom: 0.25rem;
}
.bf-btn-surprise-primary:hover { background: var(--bf-red); border-color: var(--bf-red); color: #fff; }

/* ── Outline variant (secondary manual button) ────────── */
.bf-btn-outline {
  background: transparent;
  border-color: var(--bf-border);
  color: var(--bf-text-muted);
}
.bf-btn-outline:not(:disabled):hover { background: var(--bf-bg-alt); color: var(--bf-text); border-color: var(--bf-text); }

/* ── "Erase this life" destructive reroll button ─────── */
.bf-btn-erase {
  background: transparent;
  border-color: var(--bf-border-light);
  color: var(--bf-text-muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  width: 100%;
  text-align: center;
}
.bf-btn-erase:hover {
  border-color: var(--bf-red);
  color: var(--bf-red);
  background: transparent;
}

/* ── Character preview card ──────────────────────────── */
.bf-preview-card {
  border: 1px solid var(--bf-border-light);
  background: var(--bf-bg-alt);
  padding: 1.5rem 1.75rem;
  margin: 1.5rem 0 1rem;
  max-width: 560px;
}

.bf-preview-appearance {
  font-size: 0.85rem;
  color: var(--bf-text-muted);
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--bf-border-light);
  padding-bottom: 0.9rem;
}

.bf-preview-synopsis {
  font-size: 0.95rem;
  color: var(--bf-text);
  line-height: 1.75;
}

.bf-preview-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 560px;
}

/* ── "Create for Me" button (legacy, kept for compat) ─── */
.bf-btn-surprise {
  background: transparent;
  border: 1px solid var(--bf-border-light);
  color: var(--bf-text-muted);
  font-family: var(--bf-font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  padding: 0.65rem 1.4rem;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  display: inline-block;
  text-decoration: none;
}
.bf-btn-surprise:hover {
  border-color: var(--bf-border);
  color: var(--bf-text);
  background: var(--bf-bg-alt);
}

.bf-loading-state {
  display: none;
  text-align: center;
  padding: 3rem 1rem;
}

.bf-loading-state.active { display: block; }

.bf-spinner {
  width: 36px;
  height: 36px;
  border: 2px solid var(--bf-border-light);
  border-top-color: var(--bf-red);
  border-radius: 50%;
  animation: bf-spin 0.9s linear infinite;
  margin: 0 auto 1rem;
}

@keyframes bf-spin { to { transform: rotate(360deg); } }

.bf-loading-label {
  font-family: var(--bf-font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bf-text-muted);
}

/* ── FLOW PAGE ────────────────────────────────────────── */

.bf-flow-page { padding: 1.5rem 0; }

.bf-flow-header {
  border-bottom: 1px solid var(--bf-border-light);
  padding-bottom: 1.5rem;
  margin-bottom: 2.5rem;
}

.bf-flow-character {
  font-family: var(--bf-font-serif);
  font-size: 1.8rem;
  margin-bottom: 0.25rem;
}

.bf-flow-life-title {
  font-size: 0.85rem;
  color: var(--bf-text-muted);
  font-style: italic;
  margin-bottom: 1rem;
}

.bf-flow-progress-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--bf-font-mono);
  font-size: 0.75rem;
  color: var(--bf-text-muted);
}

.bf-flow-progress-track { flex: 1; max-width: 200px; height: 2px; background: var(--bf-border-light); }
.bf-flow-progress-fill { height: 100%; background: var(--bf-red); transition: width 0.5s; }

/* Flow columns */
.bf-flow-columns {
  display: grid;
  grid-template-columns: 1fr 48px 1fr;
  gap: 0;
}

.bf-flow-col-header {
  font-family: var(--bf-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--bf-border);
  margin-bottom: 1rem;
}

.bf-flow-col-normal .bf-flow-col-header { color: var(--bf-text-muted); }
.bf-flow-col-worst .bf-flow-col-header { color: var(--bf-red); }
.bf-flow-col-perfect .bf-flow-col-header { color: var(--bf-text-muted); text-align: right; }

.bf-flow-connector-col { display: flex; flex-direction: column; align-items: center; padding-top: 2.5rem; }

/* Point cards */
.bf-flow-pair { display: contents; }

.bf-point-worst, .bf-point-perfect {
  border: 1px solid var(--bf-border-light);
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  line-height: 1.5;
  position: relative;
}

.bf-point-worst {
  background: var(--bf-bg-card);
  border-left: 3px solid var(--bf-red);
}

.bf-point-perfect {
  background: var(--bf-bg-card);
  border-right: 3px solid var(--bf-border);
  text-align: right;
}

.bf-point-worst.available {
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.bf-point-worst.available:hover {
  background: var(--bf-red-light);
  border-left-color: var(--bf-red-dark);
}

.bf-point-worst.complete {
  opacity: 0.55;
  cursor: default;
  border-left-color: var(--bf-border);
}

.bf-point-perfect.complete {
  border-right-color: var(--bf-text);
  color: var(--bf-text);
}

.bf-point-label {
  display: block;
  font-family: var(--bf-font-serif);
  font-size: 0.95rem;
}

.bf-point-status {
  display: block;
  font-family: var(--bf-font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 0.3rem;
  color: var(--bf-text-muted);
}

/* Risk sub-label: shows worst life as a warning under the normal life label */
.bf-point-worst-risk {
  display: block;
  font-family: var(--bf-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bf-red);
  opacity: 0.75;
  margin-top: 0.2rem;
}

.bf-point-worst.available .bf-point-status { color: var(--bf-red); }
.bf-point-worst.complete .bf-point-status { color: var(--bf-border); }

/* Connector lines */
.bf-connector {
  width: 2px;
  flex: 1;
  min-height: 20px;
  position: relative;
}

.bf-connector-available { background: var(--bf-red); opacity: 0.3; }
.bf-connector-complete  { background: var(--bf-border); opacity: 0.5; }
.bf-connector-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--bf-red);
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

/* ── PLAY PAGE ────────────────────────────────────────── */

.bf-play-page { max-width: 760px; margin: 0 auto; }

.bf-play-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--bf-border-light);
  gap: 1rem;
}

/* 3-tier play header: Risk / Normal / → Goal */
.bf-play-point-labels { flex: 1; display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }

.bf-play-tier {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.bf-play-tier-risk {
  font-family: var(--bf-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bf-red);
  opacity: 0.8;
}

.bf-play-tier-normal {
  font-family: var(--bf-font-serif);
  font-size: 0.95rem;
  color: var(--bf-text);
}

.bf-play-tier-goal-label {
  font-family: var(--bf-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bf-text-muted);
  opacity: 0.8;
}

/* Keep old classes as fallback for old stories with no NormalLabel */
.bf-play-worst-label {
  font-family: var(--bf-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bf-red);
  margin-bottom: 0.15rem;
}

.bf-play-perfect-label {
  font-family: var(--bf-font-serif);
  font-size: 1rem;
  color: var(--bf-text-muted);
  font-style: italic;
}

.bf-play-perfect-label::before { content: "→ "; }

.bf-narrative-area {
  min-height: 200px;
}

.bf-narrative-block {
  margin-bottom: 1.5rem;
}

.bf-narrative-image {
  width: 100%;
  height: auto;
  max-width: 560px;
  display: block;
  margin: 0 auto 1rem;
  border: 1px solid var(--bf-border-light);
  filter: grayscale(20%) contrast(1.05);
}

.bf-narrative-image-placeholder {
  width: 100%;
  aspect-ratio: 1/1;
  max-width: 560px;
  margin: 0 auto 1rem;
  background: var(--bf-bg-alt);
  border: 1px solid var(--bf-border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--bf-font-mono);
  font-size: 0.7rem;
  color: var(--bf-text-muted);
  letter-spacing: 0.1em;
}

.bf-narrative-text {
  font-family: var(--bf-font-serif);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--bf-text);
}

.bf-narrative-text p { margin-bottom: 0.8rem; }

/* Choices */
.bf-choices {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--bf-border-light);
}

.bf-choice-btn {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--bf-bg-card);
  border: 1px solid var(--bf-border-light);
  padding: 0.75rem 1rem;
  font-family: var(--bf-font-serif);
  font-size: 0.95rem;
  color: var(--bf-text);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  line-height: 1.5;
  min-height: 44px; /* WCAG minimum touch target */
}

.bf-choice-btn:hover:not(:disabled) {
  border-color: var(--bf-red);
  background: var(--bf-red-light);
}

.bf-choice-btn:disabled { opacity: 0.4; cursor: default; }

.bf-choice-btn.selected {
  background: var(--bf-bg-alt);
  border-color: var(--bf-border);
  color: var(--bf-text-muted);
}

/* Terminal outcomes */
.bf-outcome-banner {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border: 1px solid var(--bf-border);
  margin-top: 2rem;
}

.bf-outcome-success { border-color: var(--bf-text); background: var(--bf-bg-alt); }
.bf-outcome-failure { border-color: var(--bf-red); background: var(--bf-red-light); }

.bf-outcome-label {
  font-family: var(--bf-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.bf-outcome-success .bf-outcome-label { color: var(--bf-text-muted); }
.bf-outcome-failure .bf-outcome-label { color: var(--bf-red); }

.bf-outcome-title {
  font-family: var(--bf-font-serif);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.bf-outcome-text { font-size: 0.875rem; color: var(--bf-text-muted); margin-bottom: 1.5rem; }

/* Thinking indicator */
.bf-thinking {
  display: none;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 0;
  font-family: var(--bf-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--bf-text-muted);
}

.bf-thinking.active { display: flex; }

.bf-thinking-dots span {
  display: inline-block;
  width: 5px;
  height: 5px;
  background: var(--bf-red);
  border-radius: 50%;
  margin-right: 3px;
  animation: bf-dot 1.2s infinite;
}

.bf-thinking-dots span:nth-child(2) { animation-delay: 0.2s; }
.bf-thinking-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes bf-dot { 0%, 80%, 100% { opacity: 0.2; } 40% { opacity: 1; } }

/* ── READ PAGE ────────────────────────────────────────── */

.bf-read-page { max-width: 760px; margin: 0 auto; }

.bf-read-header {
  text-align: center;
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--bf-border);
  margin-bottom: 3rem;
}

.bf-read-eyebrow {
  font-family: var(--bf-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--bf-text-muted);
  margin-bottom: 0.5rem;
}

.bf-read-character { font-size: 2.5rem; margin-bottom: 0.25rem; }
.bf-read-life-title { font-style: italic; color: var(--bf-text-muted); }

.bf-read-chapter {
  margin-bottom: 3rem;
}

.bf-read-chapter-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.bf-read-chapter-num {
  font-family: var(--bf-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--bf-red);
}

.bf-read-chapter-title {
  font-family: var(--bf-font-serif);
  font-size: 1.2rem;
}

.bf-read-node-narrative {
  font-family: var(--bf-font-serif);
  font-size: 1rem;
  line-height: 1.85;
  margin-bottom: 1rem;
}

.bf-read-node-image {
  width: 100%;
  height: auto;
  max-width: 560px;
  display: block;
  margin: 0 auto 1.25rem;
  border: 1px solid var(--bf-border-light);
  filter: grayscale(15%) contrast(1.05);
}

.bf-read-node-narrative p { margin-bottom: 0.8rem; }

.bf-read-choice-taken {
  font-family: var(--bf-font-mono);
  font-size: 0.78rem;
  color: var(--bf-text-muted);
  border-left: 2px solid var(--bf-border-light);
  padding-left: 0.75rem;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.bf-read-chapter-outcome {
  font-family: var(--bf-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bf-text-muted);
  text-align: center;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--bf-border-light);
}

/* ── Utility ──────────────────────────────────────────── */

.bf-text-red { color: var(--bf-red); }
.bf-text-muted { color: var(--bf-text-muted); }
.bf-font-serif { font-family: var(--bf-font-serif); }
.bf-font-mono { font-family: var(--bf-font-mono); }

.bf-sr-only {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

@media (max-width: 640px) {
  .bf-main { padding: 1.2rem 1rem; }
  .bf-flow-columns { grid-template-columns: 1fr 32px 1fr; }
  .bf-index-title { font-size: 2rem; }
}

/* ════════════════════════════════════════════════════════════
   RESPONSIVE — breakpoints 768 · 560 · 400
   ════════════════════════════════════════════════════════════ */

/* ── Tablet 768px ──────────────────────────────────────── */
@media (max-width: 768px) {
  h1 { font-size: 1.9rem; }
  h2 { font-size: 1.45rem; }

  .bf-header { padding: 0 1rem; }
  .bf-main   { padding: 1.5rem 1rem; }

  /* Index */
  .bf-index-hero  { padding: 2.5rem 1rem 2rem; }
  .bf-index-title { font-size: 2.4rem; }

  /* Flow */
  .bf-flow-character { font-size: 1.5rem; }

  /* Synopsis */
  .bf-synopsis-card { padding: 1.2rem 1.2rem; }

  /* Read */
  .bf-read-character { font-size: 2rem; }

  /* Thread map */
  .bf-thread-map-viewport { height: 60vh; }
}

/* ── Mobile 560px ──────────────────────────────────────── */
@media (max-width: 560px) {
  html  { font-size: 15px; }
  h1    { font-size: 1.65rem; }
  h2    { font-size: 1.3rem; }
  h3    { font-size: 1.1rem; }

  /* ── Header ── */
  .bf-header       { padding: 0 0.75rem; }
  .bf-header-inner { height: 50px; }
  .bf-logo-text    { font-size: 1rem; }

  /* ── Main content ── */
  .bf-main { padding: 1rem 0.85rem; }

  /* ── Buttons — bigger touch targets ── */
  .bf-btn { padding: 0.55rem 1rem; }

  /* ── Index ── */
  .bf-index-hero   { padding: 1.75rem 0.5rem 1.5rem; }
  .bf-index-title  { font-size: 2rem; }
  .bf-story-grid   { grid-template-columns: 1fr; gap: 1rem; }

  /* ── Setup ── */
  .bf-setup-page { padding: 1rem 0; }

  /* ── Synopsis ── */
  .bf-synopsis-card { padding: 1rem; margin-bottom: 1.25rem; }

  /* ── Flow page — stack worst/perfect pairs vertically ── */
  .bf-flow-columns {
    display: flex;
    flex-direction: column;
    gap: 0;
  }
  /* Hide the three header/connector elements */
  .bf-flow-col-header,
  .bf-flow-col-spacer,
  .bf-flow-connector-col { display: none; }

  /* Worst item — remove bottom border, keep top */
  .bf-point-worst {
    width: 100%;
    margin-bottom: 0;
    border-bottom: none;
    border-left-width: 3px;
  }

  /* Perfect item — becomes a footer row under the worst item */
  .bf-point-perfect {
    width: 100%;
    text-align: left;
    border-right: none;
    border-left: 3px solid var(--bf-border-light);
    padding: 0.55rem 1rem;
    margin-bottom: 1rem;
    background: var(--bf-bg);
    font-size: 0.8rem;
    color: var(--bf-text-muted);
  }

  .bf-point-perfect.complete {
    border-left-color: var(--bf-border);
    color: var(--bf-text);
  }

  .bf-flow-progress-wrap {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .bf-flow-progress-track { max-width: 100%; flex: 1 1 100%; }

  /* ── Play page ── */
  .bf-play-point-labels { gap: 0.4rem; }
  .bf-play-worst-label  { font-size: 0.65rem; }
  .bf-play-tier-risk    { font-size: 0.55rem; }
  .bf-play-tier-normal  { font-size: 0.85rem; }
  .bf-play-tier-goal-label { font-size: 0.55rem; }
  .bf-play-perfect-label { font-size: 0.85rem; }
  .bf-narrative-text    { font-size: 0.95rem; }
  .bf-choice-btn        { padding: 0.9rem 1rem; font-size: 0.9rem; min-height: 48px; }

  /* Outcome banner */
  .bf-outcome-banner    { padding: 1.5rem 1rem; }
  .bf-outcome-actions   { flex-direction: column; align-items: stretch; }
  .bf-outcome-actions .bf-btn { text-align: center; }

  /* ── Thread page ── */
  .bf-thread-map-viewport { height: 55vh; min-height: 260px; }
  .bf-thread-title        { flex-direction: column; align-items: flex-start; gap: 0.2rem; }
  .bf-thread-arrow        { display: none; }
  .bf-thread-legend       { gap: 0.6rem; font-size: 0.62rem; }
  .bf-thread-controls     { gap: 0.3rem; }
  .bf-zoom-btn            { width: 2.25rem; height: 2.25rem; } /* bigger touch target */

  /* ── Read page ── */
  .bf-read-character    { font-size: 1.7rem; }
  .bf-read-header       { padding: 1.5rem 0 1.5rem; margin-bottom: 2rem; }
  .bf-read-chapter      { margin-bottom: 2rem; }
  .bf-read-chapter-header { flex-direction: column; gap: 0.2rem; }
}

/* ── Small mobile 400px ───────────────────────────────── */
@media (max-width: 400px) {
  html  { font-size: 14px; }
  h1    { font-size: 1.45rem; }

  .bf-header { padding: 0 0.6rem; }
  .bf-logo-text   { font-size: 0.9rem; }
  .bf-logo-symbol { font-size: 1.25rem; }

  /* Hide "Stories" nav link at very small sizes — logo already links to index */
  .bf-nav-link:not(.bf-nav-new) { display: none; }

  .bf-index-title  { font-size: 1.75rem; }
  .bf-story-grid   { gap: 0.75rem; }

  .bf-narrative-text  { font-size: 0.875rem; }
  .bf-choice-btn      { font-size: 0.875rem; }

  .bf-outcome-title   { font-size: 1.25rem; }

  /* Thread map — make taller on small phones in landscape */
  .bf-thread-map-viewport { height: 52vh; min-height: 220px; }
}

/* ── PLAY PAGE UPDATES ────────────────────────────────── */

.bf-play-header {
  flex-direction: column;
  gap: 0.5rem;
}

.bf-play-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--bf-font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--bf-text-muted);
  margin-bottom: 0.25rem;
}

.bf-crumb-link {
  color: var(--bf-text-muted);
  text-decoration: none;
  transition: color 0.15s;
}
.bf-crumb-link:hover { color: var(--bf-red); }
.bf-crumb-sep { color: var(--bf-border); }
.bf-crumb-current { color: var(--bf-text); }

.bf-play-arrow {
  font-family: var(--bf-font-mono);
  color: var(--bf-border);
  font-size: 0.9rem;
}

.bf-path-indicator {
  font-family: var(--bf-font-mono);
  font-size: 0.68rem;
  color: var(--bf-text-muted);
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--bf-border-light);
  letter-spacing: 0.05em;
}

.bf-choices-label {
  font-family: var(--bf-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bf-text-muted);
  margin-bottom: 0.25rem;
}

.bf-choice-btn {
  text-decoration: none;
}

.bf-outcome-actions {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.bf-outcome-final {
  font-style: italic;
  color: var(--bf-text);
}

/* ── THREAD PAGE ──────────────────────────────────────── */

.bf-thread-page {
  max-width: 100%;
  overflow-x: hidden;
}

.bf-thread-header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--bf-border-light);
}

.bf-thread-breadcrumb {
  margin-bottom: 0.5rem;
  font-family: var(--bf-font-mono);
  font-size: 0.72rem;
}

.bf-thread-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.bf-thread-worst {
  font-family: var(--bf-font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bf-red);
}

.bf-thread-arrow {
  color: var(--bf-border);
  font-size: 1rem;
}

.bf-thread-perfect {
  font-family: var(--bf-font-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--bf-text);
}

.bf-thread-character {
  font-family: var(--bf-font-mono);
  font-size: 0.68rem;
  color: var(--bf-text-muted);
  letter-spacing: 0.1em;
  margin-top: 0.3rem;
}

.bf-thread-legend {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  font-family: var(--bf-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  color: var(--bf-text-muted);
}

.bf-legend-success { color: #2a6e3c; }
.bf-legend-failure { color: var(--bf-red); }

/* Thread map viewport (pan/zoom container) */
.bf-thread-map-viewport {
  overflow: hidden;
  height: 70vh;
  min-height: 320px;
  border: 1px solid var(--bf-border-light);
  background: var(--bf-bg-alt);
  position: relative;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none; /* prevent browser scroll hijacking during pinch/pan */
  cursor: grab;
}

.bf-thread-map-viewport:active {
  cursor: grabbing;
}

/* Canvas — receives CSS transform from JS */
.bf-thread-map-canvas {
  position: absolute;
  top: 0;
  left: 0;
  will-change: transform;
}

.bf-thread-map {
  position: relative;
  /* width/height set by JS */
}

/* Zoom controls */
.bf-thread-controls {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.5rem;
  justify-content: flex-end;
}

.bf-zoom-btn {
  font-family: var(--bf-font-mono);
  font-size: 1rem;
  line-height: 1;
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--bf-border);
  background: var(--bf-bg-card);
  color: var(--bf-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.12s, background 0.12s;
}

.bf-zoom-btn:hover {
  border-color: var(--bf-red);
  background: var(--bf-red-light);
}

/* Tree node cards */
.bf-tree-node {
  background: var(--bf-bg-card);
  border: 1px solid var(--bf-border-light);
  padding: 0.5rem 0.6rem;
  box-sizing: border-box;
  font-size: 0.78rem;
  transition: border-color 0.15s;
}

.bf-tree-node:hover {
  border-color: var(--bf-red);
  z-index: 10;
}

.bf-tree-node--root {
  border-left: 3px solid var(--bf-red);
}

.bf-tree-node--success {
  border-color: #2a6e3c;
  background: #f0faf3;
}

.bf-tree-node--failure {
  border: 2px solid var(--bf-red);
  border-left: 4px solid var(--bf-red-dark);
  background: #fce8e8;
}

.bf-tree-node--failure .bf-tree-node-excerpt {
  color: #5c0000;
}

.bf-tree-node--failure .bf-tree-node-depth {
  color: var(--bf-red);
}

.bf-tree-node--stub {
  background: transparent;
  border: 1px dashed var(--bf-border-light);
  opacity: 0.7;
}

.bf-tree-node--stub:hover {
  opacity: 1;
  border-color: var(--bf-red);
  border-style: dashed;
}

.bf-tree-node-link,
.bf-tree-stub-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.bf-tree-node-depth {
  font-family: var(--bf-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bf-text-muted);
  margin-bottom: 0.2rem;
}

.bf-tree-node-excerpt {
  font-family: var(--bf-font-serif);
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--bf-text);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.bf-tree-badge {
  display: inline-block;
  font-family: var(--bf-font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.1rem 0.35rem;
  border: 1px solid var(--bf-border-light);
  margin-bottom: 0.25rem;
  color: var(--bf-text-muted);
}

.bf-tree-badge--success { border-color: #2a6e3c; color: #2a6e3c; }
.bf-tree-badge--failure { border-color: var(--bf-red); color: var(--bf-red); }
.bf-tree-badge--locked  { border-color: #b8890a; color: #8a6500; background: #fffbe6; }
.bf-tree-badge--weird   { border-color: #7a4fa8; color: #7a4fa8; background: transparent; }

/* Weird (drift) node — subtle violet tint */
.bf-tree-node--weird {
  border-color: #7a4fa8;
  box-shadow: 0 0 6px rgba(122, 79, 168, 0.25);
}

/* Locked node card */
.bf-tree-node--locked {
  border-color: #b8890a;
  background: #fffbe6;
  opacity: 0.85;
}

.bf-legend-locked { color: #8a6500; }
.bf-legend-weird  { color: #7a4fa8; }

/* Play page: locked-by-other state */
.bf-locked-state {
  text-align: center;
  padding: 3rem 1rem;
}

.bf-locked-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.bf-locked-title {
  font-family: var(--bf-font-serif);
  font-size: 1.25rem;
  font-weight: 400;
  margin-bottom: 0.75rem;
  color: var(--bf-text);
}

.bf-locked-text {
  font-family: var(--bf-font-mono);
  font-size: 0.78rem;
  color: var(--bf-text-muted);
  max-width: 36ch;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

.bf-tree-stub-icon {
  display: block;
  text-align: center;
  font-size: 1.1rem;
  color: var(--bf-border);
  margin-bottom: 0.15rem;
}

.bf-tree-stub-label {
  display: block;
  text-align: center;
  font-family: var(--bf-font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bf-text-muted);
}

.bf-thread-tip {
  margin-top: 0.75rem;
  font-family: var(--bf-font-mono);
  font-size: 0.68rem;
  color: var(--bf-text-muted);
  letter-spacing: 0.05em;
  text-align: center;
  font-style: italic;
}

.bf-thread-empty {
  text-align: center;
  padding: 3rem 1rem;
}

.bf-thread-empty-text {
  font-family: var(--bf-font-serif);
  font-style: italic;
  color: var(--bf-text-muted);
  margin-bottom: 1.5rem;
}

/* ── LOADING OVERLAY ──────────────────────────────────── */

.bf-loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(15, 14, 13, 0.82);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s ease;
}

.bf-loading-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

.bf-loading-overlay-dots {
  display: flex;
  gap: 0.45rem;
  align-items: center;
}

.bf-loading-overlay-dots span {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bf-red);
  animation: bf-dot 1.2s infinite;
}

.bf-loading-overlay-dots span:nth-child(2) { animation-delay: 0.2s; }
.bf-loading-overlay-dots span:nth-child(3) { animation-delay: 0.4s; }

.bf-loading-overlay-text {
  font-family: var(--bf-font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #c0b8b0;
}

/* Also show the thinking indicator (inline) when used inside narrative area */
.bf-thinking { display: flex; }

/* ── OMEN / WEIRD NODE STYLING ────────────────────────── */

.bf-narrative-weird {
  background: linear-gradient(to bottom, rgba(122,79,168,0.04), transparent 40%);
  border-left: 2px solid rgba(122,79,168,0.35);
  padding-left: 1.25rem;
}

.bf-omen-header {
  font-family: var(--bf-font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #7a4fa8;
  opacity: 0.7;
  margin-bottom: 1rem;
  font-style: italic;
}

/* ── FATE WARNING (Setup page) ────────────────────────── */

.bf-fate-warning {
  max-width: 560px;
  margin: 0 auto 2rem;
  padding: 1rem 1.25rem;
  border-left: 2px solid var(--bf-border-light);
  opacity: 0.7;
}

.bf-fate-warning-text {
  font-family: var(--bf-font-serif);
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--bf-text-muted);
  margin-bottom: 0.5rem;
}

.bf-fate-warning-text:last-child { margin-bottom: 0; }

.bf-fate-warning-confirm {
  font-family: var(--bf-font-serif);
  font-size: 0.75rem;
  font-style: italic;
  color: var(--bf-text-muted);
  opacity: 0.65;
  margin-top: 0.6rem;
  margin-bottom: 0;
  text-align: center;
}

/* ── STORY STATS (Flow page) ──────────────────────────── */

.bf-story-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  margin-top: 0.75rem;
  opacity: 0.6;
}

.bf-story-stat-item {
  font-family: var(--bf-font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--bf-text-muted);
}

/* ── DEPTH STRIP ──────────────────────────────────────── */
.bf-depth-strip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  opacity: 0.55;
}

.bf-depth-label {
  font-family: var(--bf-font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--bf-text-muted);
  white-space: nowrap;
}

.bf-depth-bar-track {
  flex: 1;
  height: 2px;
  background: var(--bf-border-light);
  border-radius: 1px;
  overflow: hidden;
}

.bf-depth-bar-fill {
  height: 100%;
  background: var(--bf-text-muted);
  border-radius: 1px;
  transition: width 0.3s ease;
}