:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #171717;
  background: #f4f1eb;
  font-synthesis: none;
  --ink: #171717;
  --muted: #6b6965;
  --paper: #fffdf9;
  --paper-2: #f7f3ec;
  --panel: #f1ece3;
  --line: #d9d2c7;
  --line-strong: #aaa195;
  --accent: #b7472a;
  --danger: #a92f2f;
  --focus: #1d64d8;
  --story: #5b4ab8;
  --shadow: 0 24px 70px rgba(38, 31, 23, .08);
  --radius: 1rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% 0%, rgba(183, 71, 42, .08), transparent 28rem),
    var(--paper-2);
  color: var(--ink);
}
button, input, select, textarea { font: inherit; }
button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
[hidden] { display: none !important; }

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

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 100;
  transform: translateY(-200%);
  padding: .7rem 1rem;
  background: var(--ink);
  color: var(--paper);
  border-radius: .5rem;
}
.skip-link:focus { transform: none; }

.site-header, main, footer {
  width: min(1540px, calc(100% - 2rem));
  margin-inline: auto;
}
.site-header {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  font-weight: 800;
  letter-spacing: -.03em;
  text-decoration: none;
}
.site-header nav { display: flex; gap: 1.25rem; color: var(--muted); font-size: .88rem; }
.site-header nav a { text-underline-offset: .2rem; }

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, .65fr);
  gap: 3rem 5rem;
  padding: clamp(3.5rem, 7vw, 7rem) 0 clamp(2.5rem, 5vw, 4.5rem);
  align-items: end;
}
.eyebrow, .kicker {
  margin: 0 0 .65rem;
  text-transform: uppercase;
  letter-spacing: .13em;
  font-size: .7rem;
  font-weight: 850;
  color: var(--accent);
}
.hero h1 {
  margin: 0;
  max-width: 1000px;
  font-size: clamp(3rem, 6.8vw, 7.2rem);
  line-height: .9;
  letter-spacing: -.065em;
  font-weight: 830;
}
.hero-copy-wrap { align-self: end; }
.hero-copy {
  margin: 0;
  max-width: 48ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.6;
}
.hero-meta { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.25rem; }
.hero-meta span {
  padding: .42rem .65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,.4);
  font-size: .75rem;
}

.project-bar {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto auto;
  align-items: center;
  gap: 1rem;
  margin-bottom: .75rem;
  padding: .8rem .9rem;
  border: 1px solid var(--line-strong);
  border-radius: .9rem;
  background: var(--paper);
  box-shadow: 0 10px 30px rgba(38, 31, 23, .04);
}
.project-title-field input {
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -.025em;
}
.project-title-field input::placeholder { color: var(--muted); }
.project-title-field input:focus { box-shadow: inset 0 -2px 0 var(--focus); }
.project-stats { display: flex; gap: .8rem; color: var(--muted); font-size: .74rem; white-space: nowrap; }
.project-stats span + span::before { content: "·"; margin-right: .8rem; color: var(--line-strong); }
.project-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .35rem; }

.app-shell {
  display: grid;
  grid-template-columns: minmax(340px, 460px) minmax(0, 1fr);
  min-height: 780px;
  border: 1px solid var(--line-strong);
  border-radius: 1.15rem;
  overflow: clip;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.control-panel {
  min-width: 0;
  border-right: 1px solid var(--line);
  background: var(--panel);
}
.tabs {
  position: sticky;
  top: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  backdrop-filter: blur(12px);
}
.tab {
  border: 0;
  border-right: 1px solid var(--line);
  padding: .9rem .65rem;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .02em;
}
.tab:last-child { border-right: 0; }
.tab:hover { color: var(--ink); background: rgba(255,255,255,.28); }
.tab.is-active { color: var(--ink); box-shadow: inset 0 -3px 0 var(--ink); }
.editor-section { padding: clamp(1.2rem, 2.4vw, 2rem); }
.section-heading { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 1.4rem; }
.section-heading h2, .timeline-heading-row h2 { margin: 0; font-size: clamp(1.2rem, 2vw, 1.55rem); letter-spacing: -.035em; }

.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 .8rem; }
.field-wide { grid-column: 1 / -1; }
.field {
  display: grid;
  gap: .42rem;
  margin-bottom: .95rem;
  color: #403d38;
  font-size: .82rem;
  font-weight: 750;
}
.field small { color: var(--muted); font-weight: 500; }
.field input:not([type="color"]), .field select, .field textarea,
.search-field input, .compact-field select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: .62rem;
  background: var(--paper);
  color: var(--ink);
  padding: .7rem .76rem;
  line-height: 1.35;
  outline: none;
}
.field textarea { min-height: 88px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus,
.search-field input:focus, .compact-field select:focus {
  border-color: var(--focus);
  box-shadow: 0 0 0 3px rgba(29, 100, 216, .12);
}

.button {
  appearance: none;
  border: 1px solid transparent;
  border-radius: .58rem;
  padding: .65rem .8rem;
  font-size: .78rem;
  font-weight: 780;
  line-height: 1;
  cursor: pointer;
  transition: transform .12s ease, background .12s ease, border-color .12s ease, opacity .12s ease;
}
.button:hover:not(:disabled) { transform: translateY(-1px); }
.button:active:not(:disabled) { transform: none; }
.button:disabled { opacity: .4; cursor: not-allowed; }
.button:focus-visible, .tab:focus-visible, .icon-button:focus-visible, a:focus-visible {
  outline: 3px solid rgba(29, 100, 216, .35);
  outline-offset: 2px;
}
.button.primary { background: var(--ink); color: var(--paper); }
.button.primary:hover { background: color-mix(in srgb, var(--ink) 82%, var(--paper)); }
.button.secondary { background: transparent; border-color: var(--line-strong); color: var(--ink); }
.button.secondary:hover { background: rgba(255,255,255,.46); }
.button.ghost { background: transparent; color: var(--muted); }
.button.ghost:hover { color: var(--ink); background: rgba(255,255,255,.32); }
.button.danger { background: transparent; color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }
.compact-button { padding-inline: .55rem; }
.form-actions { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .2rem; }
.file-button { position: relative; overflow: hidden; }
.file-button input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.form-error {
  margin: -.1rem 0 .8rem;
  padding: .65rem .75rem;
  border-left: 3px solid var(--danger);
  background: color-mix(in srgb, var(--danger) 7%, transparent);
  color: var(--danger);
  font-size: .8rem;
  line-height: 1.45;
}
.privacy-note { margin: 1rem 0 0; color: var(--muted); font-size: .72rem; line-height: 1.5; }
.divider { margin: 1.5rem 0 1.1rem; border-top: 1px solid var(--line); }

.subheading-row { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin: .2rem 0 .65rem; }
.subheading-row h3 { margin: 0; font-size: .86rem; letter-spacing: -.01em; }
.subheading-row span { color: var(--muted); font-size: .7rem; }
.story-builder { display: grid; grid-template-columns: 1fr; gap: 1rem; margin: 1rem 0; }
.picker-list, .sequence-list { margin: 0; padding: 0; max-height: 230px; overflow: auto; border: 1px solid var(--line); border-radius: .68rem; background: var(--paper); }
.picker-list:empty::before, .sequence-list:empty::before {
  content: "No items yet";
  display: block;
  padding: .85rem;
  color: var(--muted);
  font-size: .76rem;
}
.picker-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .65rem;
  align-items: start;
  padding: .68rem .72rem;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
}
.picker-row:last-child { border-bottom: 0; }
.picker-row:hover { background: var(--paper-2); }
.picker-row input { margin-top: .15rem; }
.picker-copy { min-width: 0; }
.picker-copy strong { display: block; font-size: .78rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.picker-copy span { display: block; margin-top: .18rem; color: var(--muted); font-size: .68rem; }
.sequence-list { list-style: none; }
.sequence-row {
  display: grid;
  grid-template-columns: 1.4rem minmax(0, 1fr) auto;
  gap: .5rem;
  align-items: center;
  padding: .58rem .65rem;
  border-bottom: 1px solid var(--line);
}
.sequence-row:last-child { border-bottom: 0; }
.sequence-number { color: var(--muted); font: 700 .68rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.sequence-title { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .74rem; font-weight: 720; }
.sequence-actions { display: flex; gap: .15rem; }

.story-list, .category-list { display: grid; gap: .6rem; }
.story-card, .category-row {
  border: 1px solid var(--line);
  border-radius: .72rem;
  background: var(--paper);
  padding: .8rem;
}
.story-card-top, .category-row { display: flex; justify-content: space-between; gap: .8rem; align-items: flex-start; }
.story-card h4 { margin: 0; font-size: .9rem; letter-spacing: -.02em; }
.story-card p { margin: .4rem 0 0; color: var(--muted); font-size: .74rem; line-height: 1.45; }
.story-meta { display: flex; gap: .5rem; align-items: center; margin-top: .65rem; color: var(--muted); font-size: .68rem; }
.story-actions, .category-actions-inline { display: flex; flex-wrap: wrap; gap: .2rem; }
.category-form { display: grid; grid-template-columns: minmax(0, 1fr) 76px; gap: 0 .7rem; align-items: end; }
.category-form .category-actions { grid-column: 1 / -1; }
.color-field input[type="color"] { width: 100%; height: 40px; padding: .15rem; border: 1px solid var(--line-strong); border-radius: .58rem; background: var(--paper); }
.category-row { align-items: center; }
.category-identity { display: flex; gap: .65rem; align-items: center; min-width: 0; }
.category-dot { width: .72rem; height: .72rem; flex: 0 0 auto; border-radius: 999px; background: var(--category-color, var(--accent)); box-shadow: 0 0 0 1px color-mix(in srgb, var(--category-color, var(--accent)) 70%, var(--line)); }
.category-copy strong { display: block; font-size: .8rem; }
.category-copy span { display: block; margin-top: .12rem; color: var(--muted); font-size: .68rem; }

.icon-button {
  border: 0;
  border-radius: .4rem;
  background: transparent;
  color: var(--muted);
  padding: .34rem .42rem;
  cursor: pointer;
  font-size: .7rem;
  font-weight: 760;
}
.icon-button:hover { background: var(--paper-2); color: var(--ink); }
.icon-button.delete:hover { color: var(--danger); }

.timeline-panel { min-width: 0; padding: clamp(1.2rem, 2.7vw, 2.4rem); position: relative; }
.timeline-heading-row { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; margin-bottom: 1rem; }
.visible-count { margin: .2rem 0 0; color: var(--muted); font-size: .78rem; white-space: nowrap; }
.timeline-toolbar {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(150px, 220px) auto;
  gap: .45rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.search-field input, .compact-field select { padding: .58rem .65rem; font-size: .76rem; }

.story-focus {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1rem;
  align-items: center;
  margin: 1rem 0;
  padding: 1rem;
  border: 1px solid color-mix(in srgb, var(--story) 45%, var(--line));
  border-radius: .85rem;
  background: color-mix(in srgb, var(--story) 7%, var(--paper));
}
.story-focus .kicker { color: var(--story); }
.story-focus h3 { margin: 0; font-size: 1.05rem; letter-spacing: -.025em; }
.story-focus p { margin: .3rem 0 0; color: var(--muted); font-size: .76rem; line-height: 1.45; }
.story-focus-controls { display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: .4rem; }
.story-focus-controls > span { min-width: 48px; text-align: center; color: var(--muted); font: 750 .7rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; }

.empty-state {
  display: grid;
  place-items: start;
  max-width: 560px;
  margin: clamp(3rem, 8vw, 7rem) auto;
  padding: 2rem;
  border: 1px dashed var(--line-strong);
  border-radius: 1rem;
  color: var(--muted);
}
.empty-state h3 { margin: .2rem 0 .55rem; color: var(--ink); font-size: 1.3rem; }
.empty-state p { margin: 0; line-height: 1.55; }
.empty-symbol { margin-bottom: 1.2rem !important; color: var(--accent) !important; font: 750 .72rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .08em; }

.timeline-list { list-style: none; margin: 0; padding: 1rem 0 2rem; position: relative; }
.timeline-list::before {
  content: "";
  position: absolute;
  left: 172px;
  top: 1.4rem;
  bottom: 2.7rem;
  width: 1px;
  background: var(--line);
}
.timeline-item {
  --category-color: var(--accent);
  display: grid;
  grid-template-columns: 144px 56px minmax(0, 1fr);
  align-items: stretch;
  min-height: 126px;
  scroll-margin-top: 1rem;
}
.timeline-date { padding-top: .78rem; text-align: right; font-variant-numeric: tabular-nums; }
.timeline-date strong { display: block; font-size: .83rem; letter-spacing: -.012em; }
.timeline-date span { display: block; margin-top: .2rem; color: var(--muted); font-size: .7rem; line-height: 1.3; }
.timeline-marker { position: relative; min-height: 100%; }
.timeline-marker::before {
  content: "";
  position: absolute;
  left: 22px;
  top: .86rem;
  width: 13px;
  height: 13px;
  border: 3px solid var(--paper);
  border-radius: 50%;
  background: var(--category-color);
  box-shadow: 0 0 0 1px var(--category-color);
  z-index: 2;
}
.timeline-item.is-range .timeline-marker::before { border-radius: 3px; transform: rotate(45deg); }
.timeline-item.is-range .timeline-marker::after {
  content: "";
  position: absolute;
  left: 27px;
  top: 1.4rem;
  bottom: .2rem;
  width: 3px;
  border-radius: 2px;
  background: color-mix(in srgb, var(--category-color) 42%, transparent);
}
.timeline-card {
  margin: 0 0 1.15rem;
  padding: .9rem .95rem 1rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--category-color);
  border-radius: .75rem;
  background: var(--paper);
  transition: opacity .15s ease, transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.timeline-item.is-current .timeline-card {
  border-color: color-mix(in srgb, var(--story) 45%, var(--line));
  border-left-color: var(--story);
  box-shadow: 0 10px 32px color-mix(in srgb, var(--story) 12%, transparent);
  transform: translateX(3px);
}
.timeline-item.story-dimmed .timeline-card { opacity: .58; }
.timeline-card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.timeline-card h3 { margin: .15rem 0 0; font-size: 1.02rem; letter-spacing: -.02em; }
.timeline-card p { margin: .55rem 0 0; color: var(--muted); line-height: 1.55; white-space: pre-wrap; font-size: .86rem; }
.card-actions { display: flex; flex: 0 0 auto; gap: .15rem; }
.card-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; margin-top: .75rem; }
.category, .kind-badge, .story-step, .story-membership {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: .23rem .42rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: .63rem;
  font-weight: 820;
  text-transform: uppercase;
  letter-spacing: .07em;
}
.category::before { content: ""; width: .42rem; height: .42rem; margin-right: .32rem; border-radius: 50%; background: var(--category-color); }
.kind-badge { background: var(--paper-2); }
.story-step { border-color: color-mix(in srgb, var(--story) 35%, var(--line)); color: var(--story); }
.story-membership { text-transform: none; letter-spacing: 0; font-weight: 700; }
.range-end { color: var(--muted); }

.status {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 50;
  max-width: min(390px, calc(100% - 2rem));
  padding: .75rem .9rem;
  border-radius: .7rem;
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 14px 40px rgba(0,0,0,.18);
  font-size: .78rem;
  opacity: 0;
  transform: translateY(.6rem);
  pointer-events: none;
  transition: opacity .16s ease, transform .16s ease;
}
.status.visible { opacity: 1; transform: none; }

footer { display: flex; justify-content: space-between; gap: 1rem; padding: 2.5rem 0 3rem; color: var(--muted); font-size: .8rem; }
footer p { margin: 0; }

@media (max-width: 1120px) {
  .project-bar { grid-template-columns: minmax(200px, 1fr) auto; }
  .project-stats { display: none; }
  .app-shell { grid-template-columns: minmax(320px, 400px) minmax(0, 1fr); }
}

@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; gap: 1.6rem; }
  .hero-copy-wrap { max-width: 720px; }
  .app-shell { grid-template-columns: 1fr; }
  .control-panel { border-right: 0; border-bottom: 1px solid var(--line); }
  .tabs { position: static; }
  .project-bar { grid-template-columns: 1fr; }
  .project-actions { justify-content: flex-start; }
  .story-builder { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .site-header nav a:nth-child(2) { display: none; }
  .hero { padding-top: 3.4rem; }
  .hero h1 { font-size: clamp(3rem, 14vw, 5.4rem); }
  .project-bar { padding: .7rem; }
  .project-actions { display: grid; grid-template-columns: repeat(3, 1fr); width: 100%; }
  .project-actions .button { text-align: center; }
  .project-actions .danger { grid-column: span 1; }
  .editor-section, .timeline-panel { padding: 1rem; }
  .field-grid { grid-template-columns: 1fr; }
  .field { grid-column: 1; }
  .story-builder { grid-template-columns: 1fr; }
  .timeline-toolbar { grid-template-columns: 1fr 1fr; }
  .timeline-toolbar .search-field { grid-column: 1 / -1; }
  .story-focus { grid-template-columns: 1fr; }
  .story-focus-controls { justify-content: flex-start; }
  .timeline-list::before { left: 10px; }
  .timeline-item { grid-template-columns: 28px minmax(0, 1fr); min-height: 0; margin-bottom: 1.05rem; }
  .timeline-date { grid-column: 2; grid-row: 1; text-align: left; padding: 0 0 .42rem; }
  .timeline-date strong, .timeline-date span { display: inline; }
  .timeline-date span::before { content: " · "; }
  .timeline-marker { grid-column: 1; grid-row: 1 / 3; }
  .timeline-marker::before { left: 4px; top: .18rem; }
  .timeline-item.is-range .timeline-marker::after { left: 9px; top: .7rem; bottom: .1rem; }
  .timeline-card { grid-column: 2; grid-row: 2; margin: 0; }
  .timeline-card-top { gap: .45rem; }
  .card-actions { flex-direction: column; align-items: flex-end; }
  .category-form { grid-template-columns: minmax(0, 1fr) 72px; }
  footer { flex-direction: column; }
}

@media (max-width: 430px) {
  .site-header, main, footer { width: min(100% - 1rem, 1540px); }
  .site-header nav { gap: .7rem; }
  .project-actions { grid-template-columns: repeat(2, 1fr); }
  .tabs .tab { padding-inline: .35rem; }
  .timeline-toolbar { grid-template-columns: 1fr; }
  .timeline-toolbar .search-field { grid-column: auto; }
  .story-focus-controls .button { flex: 1 1 auto; }
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f1ede7;
    --muted: #aaa39a;
    --paper: #171716;
    --paper-2: #10100f;
    --panel: #1d1b19;
    --line: #393633;
    --line-strong: #57514b;
    --accent: #df7658;
    --danger: #ee7c7c;
    --focus: #78a9ff;
    --story: #a79bf4;
    --shadow: 0 24px 70px rgba(0,0,0,.24);
  }
  .field { color: #d6d0c7; }
  .hero-meta span, .button.secondary:hover, .button.ghost:hover { background: rgba(255,255,255,.035); }
  .tabs { background: color-mix(in srgb, var(--panel) 95%, transparent); }
  .tab:hover { background: rgba(255,255,255,.025); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}