/* ============================================================
   Olist Growth Audit — a data story in five acts
   Type: Newsreader (display) · Inter (body) · IBM Plex Mono (annotation)
   Color: blue = scale · green = healthy · amber = warning · red = risk
   ============================================================ */

:root {
  color-scheme: light;

  /* page */
  --plane: #F4F6F9;
  --surface: #FFFFFF;
  --ink: #17202B;
  --ink-2: #55606E;
  --ink-3: #8B95A3;
  --hairline: #E3E7EC;
  --hairline-strong: #CBD2DB;

  /* semantic data colors (validated) */
  --blue: #2563EB;
  --blue-deep: #1D4ED8;
  --green: #15803D;
  --amber: #F59E0B;
  --amber-text: #92600A;
  --red: #DC2626;
  --red-text: #B91C1C;
  --neutral-mark: #CBD5E1;

  /* type */
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  --rail-w: 200px;
  --content-w: 880px;
  --radius: 10px;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--plane);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: #2563EB22; }

a { color: var(--blue-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
  border-radius: 2px;
}

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: #fff; padding: 10px 16px;
}
.skip:focus { left: 12px; top: 12px; }

/* ============ top bar ============ */
.topbar {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; gap: 28px;
  height: 56px; padding: 0 28px;
  background: rgba(255,255,255,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}
.brand {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em;
  color: var(--ink); font-weight: 500; white-space: nowrap;
  display: flex; align-items: center; gap: 10px;
}
.brand:hover { text-decoration: none; color: var(--blue-deep); }
.brand-mark {
  width: 10px; height: 10px; border-radius: 2px;
  background: var(--blue);
  display: inline-block;
}
.topnav { display: flex; gap: 4px; margin-left: auto; }
.topnav a {
  font-size: 13px; font-weight: 500; color: var(--ink-2);
  padding: 6px 10px; border-radius: 6px; white-space: nowrap;
}
.topnav a .n { font-family: var(--mono); font-size: 11px; color: var(--ink-3); margin-right: 2px; }
.topnav a:hover { background: #EDF1F6; text-decoration: none; }
.topnav a.active { color: var(--blue-deep); background: #2563EB14; }
.topnav a.active .n { color: var(--blue-deep); }
.top-ext {
  font-size: 13px; font-weight: 500; color: var(--ink-2); white-space: nowrap;
  border: 1px solid var(--hairline-strong); border-radius: 6px; padding: 5px 12px;
}
.top-ext:hover { border-color: var(--blue); color: var(--blue-deep); text-decoration: none; }
.progress {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
  background: transparent;
}
.progress-fill {
  height: 100%; width: 0%;
  background: var(--blue);
}

/* ============ act rail ============ */
.rail {
  position: fixed; left: 0; top: 0; bottom: 0; z-index: 40;
  width: var(--rail-w);
  display: flex; flex-direction: column; justify-content: center; gap: 6px;
  padding-left: 28px;
}
.rail a {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 0; color: var(--ink-3);
}
.rail a:hover { text-decoration: none; color: var(--ink); }
.rail .dot {
  width: 9px; height: 9px; border-radius: 50%;
  border: 2px solid var(--hairline-strong); background: var(--plane);
  transition: all .25s ease;
  flex: none;
}
.rail .lbl {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0; transform: translateX(-4px);
  transition: all .25s ease;
}
.rail a:hover .lbl { opacity: 1; transform: none; }
.rail a.active .dot { border-color: var(--blue); background: var(--blue); }
.rail a.active .lbl { opacity: 1; transform: none; color: var(--blue-deep); }

/* ============ layout ============ */
main { display: block; }
.act, .hero, .epilogue {
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 96px 28px 64px;
}

/* ============ hero ============ */
.hero {
  min-height: 92vh;
  padding-top: 140px;
  display: flex; flex-direction: column;
  position: relative;
}
.eyebrow {
  font-family: var(--mono); font-size: 12px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--blue-deep);
  margin-bottom: 20px;
}
.hero h1 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(44px, 7.2vw, 84px);
  line-height: 1.02; letter-spacing: -0.015em;
  margin-bottom: 28px;
}
.hero-sub {
  font-size: 20px; line-height: 1.6; color: var(--ink-2);
  max-width: 620px;
}
.hero-sub strong { color: var(--ink); }
.byline {
  margin-top: 22px;
  font-family: var(--mono); font-size: 12px; color: var(--ink-3);
  letter-spacing: 0.04em;
}
.hero-chart { margin-top: 40px; width: 100%; }
.scroll-cue {
  margin-top: 34px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-3);
  align-self: flex-start;
}
.scroll-cue:hover { color: var(--blue-deep); text-decoration: none; }
.scroll-cue .arr { display: inline-block; animation: cue 1.8s ease-in-out infinite; }
@keyframes cue { 0%,100% { transform: translateY(0); } 50% { transform: translateY(4px); } }

/* reveal on load */
.reveal { opacity: 0; transform: translateY(14px); animation: reveal .8s ease forwards; }
.reveal:nth-child(2) { animation-delay: .1s; }
.reveal:nth-child(3) { animation-delay: .22s; }
.reveal:nth-child(4) { animation-delay: .34s; }
@keyframes reveal { to { opacity: 1; transform: none; } }

/* ============ acts ============ */
.act { border-top: 1px solid var(--hairline); }
.act-head { margin-bottom: 44px; max-width: 720px; }
.act-head h2 {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(32px, 4.6vw, 48px);
  line-height: 1.1; letter-spacing: -0.01em;
  margin-bottom: 18px;
}
.lede { font-size: 18.5px; color: var(--ink-2); }
.lede em { font-family: var(--serif); font-size: 1.06em; }

/* ============ cards & charts ============ */
.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: 0 1px 2px rgba(23,32,43,0.04);
}
.chart-card { padding: 22px 22px 14px; margin: 26px 0; }
.chart-card figcaption h3 {
  font-size: 17px; font-weight: 600; letter-spacing: -0.005em;
}
.chart-card figcaption .sub {
  font-size: 13px; color: var(--ink-3); margin-top: 3px;
}
.chart { margin-top: 14px; position: relative; }
.chart svg { display: block; width: 100%; height: auto; }

.chart-pair {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.chart-pair .chart-card { margin: 6px 0 20px; }

/* svg text defaults */
.chart text, .chart-map text {
  font-family: var(--sans);
}
.axis-tick { font-size: 11px; fill: var(--ink-3); font-variant-numeric: tabular-nums; }
.axis-label-mono { font-family: var(--mono); font-size: 10px; fill: var(--ink-3); }
.anno { font-family: var(--mono); font-size: 11px; fill: var(--ink-2); }
.anno-strong { font-weight: 600; fill: var(--ink); font-family: var(--sans); font-size: 12px; }
.bar-value { font-size: 11.5px; fill: var(--ink-2); font-variant-numeric: tabular-nums; }
.bar-cat { font-size: 12px; fill: var(--ink); }

/* KPI tiles */
.kpi-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin: 30px 0 10px;
}
.kpi {
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius); padding: 18px 18px 15px;
}
.kpi .k-label { font-size: 12.5px; color: var(--ink-2); font-weight: 500; }
.kpi .k-value {
  font-size: 32px; font-weight: 650; letter-spacing: -0.02em;
  margin-top: 2px; line-height: 1.15; color: var(--ink);
}
.kpi .k-note { font-size: 11.5px; color: var(--ink-3); margin-top: 3px; }

/* callouts */
.callout {
  border-left: 3px solid var(--blue);
  background: linear-gradient(to right, #2563EB0A, transparent 70%);
  padding: 18px 24px;
  margin: 34px 0;
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 16.5px; color: var(--ink-2);
  max-width: 760px;
}
.callout strong { color: var(--ink); }
.callout em { font-family: var(--serif); font-size: 1.05em; }

/* data tables */
.tbl-details { margin: 10px 0 4px; }
.tbl-details summary {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.05em;
  color: var(--ink-3); cursor: pointer; text-transform: uppercase;
  padding: 6px 0;
}
.tbl-details summary:hover { color: var(--blue-deep); }
.tbl-details table {
  width: 100%; border-collapse: collapse; font-size: 12.5px;
  margin-top: 8px;
}
.tbl-details th {
  text-align: left; font-weight: 600; color: var(--ink-2);
  border-bottom: 1px solid var(--hairline-strong); padding: 6px 10px 6px 0;
  white-space: nowrap;
}
.tbl-details td {
  border-bottom: 1px solid var(--hairline); padding: 5px 10px 5px 0;
  font-variant-numeric: tabular-nums; color: var(--ink-2);
}
.tbl-details .num { text-align: right; }
.tbl-wrap { overflow-x: auto; }

/* ============ map ============ */
.map-card { padding-bottom: 18px; }
.map-flex { display: grid; grid-template-columns: 1.15fr 1fr; gap: 8px; align-items: center; }
.chart-map svg path { transition: opacity .15s ease; cursor: pointer; }
.map-label { font-size: 11px; font-weight: 600; fill: #fff; pointer-events: none; }
.map-label-out { font-size: 11px; font-weight: 600; fill: var(--ink-2); pointer-events: none; }

/* waffle */
.waffle-flex { display: grid; grid-template-columns: auto 1fr; gap: 34px; align-items: center; margin-top: 14px; }
.waffle-note { max-width: 420px; color: var(--ink-2); font-size: 16px; }
.waffle-note .big-num {
  font-size: 56px; font-weight: 650; letter-spacing: -0.03em; color: var(--blue-deep);
  line-height: 1;
  margin-bottom: 10px;
}
.waffle-note strong { color: var(--ink); }

/* ============ scrolly (Act III signature) ============ */
.scrolly {
  position: relative; margin: 20px 0 30px;
  display: grid; grid-template-columns: minmax(0, 1fr) 320px;
  gap: 26px; align-items: start;
}
@media (min-width: 1200px) {
  .scrolly { margin-left: -110px; margin-right: -110px; }
}
.scrolly-panel {
  position: sticky; top: 76px; z-index: 1;
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius); box-shadow: 0 1px 2px rgba(23,32,43,0.04);
  padding: 18px 20px 12px;
}
.scrolly-steps { position: relative; z-index: 2; padding: 16vh 0 10vh; }
.step {
  background: var(--surface);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--radius);
  box-shadow: 0 8px 28px rgba(23,32,43,0.12);
  padding: 20px 22px;
  margin: 0 0 62vh;
  opacity: 0.45;
  transition: opacity .3s ease, border-color .3s ease;
}
.step:last-child { margin-bottom: 24vh; }
.step.is-active { opacity: 1; border-color: var(--blue); }
.step-kicker {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--blue-deep); margin-bottom: 6px;
}
.step h3 { font-size: 16.5px; font-weight: 600; margin-bottom: 6px; }
.step p:not(.step-kicker) { font-size: 14.5px; color: var(--ink-2); line-height: 1.55; }

/* mini-multiple titles inside scrolly panel */
.mini-title { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.08em; text-transform: uppercase; }

/* ============ versus card (Act IV) ============ */
.versus { padding: 26px 28px 20px; margin: 26px 0; }
.versus-title {
  font-family: var(--serif); font-size: 24px; font-weight: 500;
  margin-bottom: 18px;
}
.versus-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 0; }
.versus-col { padding: 4px 26px 4px 0; }
.versus-col + .versus-col { border-left: 1px solid var(--hairline); padding-left: 26px; padding-right: 0; }
.v-state { font-size: 17px; font-weight: 600; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.chip {
  font-family: var(--mono); font-size: 10.5px; font-weight: 500;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 3px 9px; border-radius: 99px;
}
.chip-good { background: #15803D14; color: var(--green); border: 1px solid #15803D3D; }
.chip-risk { background: #DC262612; color: var(--red-text); border: 1px solid #DC26263D; }
.versus dl div {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 8px 0; border-bottom: 1px solid var(--hairline);
}
.versus dl div:last-child { border-bottom: none; }
.versus dt { font-size: 13.5px; color: var(--ink-2); }
.versus dd { font-size: 16px; font-weight: 600; font-variant-numeric: tabular-nums; }
.versus dd .v-note { font-size: 11.5px; font-weight: 400; color: var(--ink-3); margin-left: 6px; }
.v-good { color: var(--green); }
.v-risk { color: var(--red-text); }
.versus-foot { margin-top: 16px; font-size: 14.5px; color: var(--ink-2); }
.versus-foot strong { color: var(--red-text); }

/* quadrant legend */
.legend {
  display: flex; gap: 18px; flex-wrap: wrap;
  margin-top: 4px; padding: 6px 2px 2px;
}
.legend .lg {
  display: flex; align-items: center; gap: 7px;
  font-size: 12.5px; color: var(--ink-2);
}
.legend .sw { width: 10px; height: 10px; border-radius: 50%; flex: none; }

/* ============ recommendations & verdict (Act V) ============ */
.recs { margin: 40px 0; }
.recs-title {
  font-family: var(--serif); font-size: 24px; font-weight: 500;
  margin-bottom: 18px;
}
.rec-cards {
  list-style: none; counter-reset: rec;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
}
.rec { counter-increment: rec; padding: 20px 20px 18px; position: relative; }
.rec::before {
  content: counter(rec, decimal-leading-zero);
  font-family: var(--mono); font-size: 12px; color: var(--blue-deep);
  letter-spacing: 0.08em;
  display: block; margin-bottom: 10px;
}
.rec h3 { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.rec p { font-size: 14px; color: var(--ink-2); line-height: 1.55; }

.verdict {
  margin: 56px auto; max-width: 700px; text-align: center;
  padding: 0 12px;
}
.verdict p {
  font-family: var(--serif); font-size: clamp(24px, 3.4vw, 32px);
  line-height: 1.35; font-weight: 500;
}
.verdict em { color: var(--blue-deep); }
.verdict-kicker {
  margin-top: 18px !important;
  font-style: italic; color: var(--ink-2);
  font-size: clamp(20px, 2.8vw, 26px) !important;
}

/* ============ tableau embeds (editorial, page-native) ============ */
.tableau-block { margin: 48px 0 8px; }
@media (min-width: 1200px) {
  .tableau-block { margin-left: -110px; margin-right: -110px; }
}
.embed-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 16px; margin-bottom: 12px;
}
.embed-eyebrow {
  font-family: var(--mono); font-size: 11px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--blue-deep); margin-bottom: 4px;
}
.embed-title {
  font-family: var(--serif); font-size: 23px; font-weight: 500;
  letter-spacing: -0.005em;
}
.embed-open {
  font-size: 13px; font-weight: 500; white-space: nowrap;
  border: 1px solid var(--hairline-strong); border-radius: 6px;
  padding: 6px 12px; color: var(--ink-2);
}
.embed-open:hover { border-color: var(--blue); color: var(--blue-deep); text-decoration: none; }

.chips { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0 0 12px; }
.chips-label {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.12em;
  color: var(--ink-3); margin-right: 4px;
}
.chip {
  font-family: var(--sans); font-size: 13px; font-weight: 500;
  color: var(--ink-2); background: var(--surface);
  border: 1px solid var(--hairline-strong); border-radius: 999px;
  padding: 6px 14px; cursor: pointer;
  transition: border-color .15s ease, color .15s ease, background .15s ease, opacity .15s ease;
}
.chip:hover:not(:disabled) { border-color: var(--blue); color: var(--blue-deep); }
.chip.active { background: #2563EB14; border-color: var(--blue); color: var(--blue-deep); }
.chip:disabled { opacity: 0.45; cursor: default; }
.chip-reset { border-style: dashed; }

.tableau-frame {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  overflow: hidden;
  background: #F7F8FA; /* matches the dashboards' own canvas — reads as one surface */
  box-shadow: 0 1px 2px rgba(23,32,43,0.04);
}
.tableau-stage { position: relative; width: 100%; overflow: hidden; }
.tableau-scale {
  transform-origin: top left;
  position: absolute; top: 0; left: 0;
  opacity: 0; transition: opacity .6s ease;
}
.tableau-scale.ready { opacity: 1; }
.tableau-placeholder {
  width: 100%; display: block;
  opacity: 0.95; transition: opacity .6s ease;
}
.tableau-placeholder.fade-out { opacity: 0; }
.embed-caption {
  font-size: 13px; color: var(--ink-3);
  margin-top: 10px; max-width: 720px;
}
.embed-caption strong { color: var(--ink-2); font-weight: 600; }

/* ============ epilogue & footer ============ */
.epilogue { border-top: 1px solid var(--hairline); padding-bottom: 40px; }
.epi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 10px; }
.epi-grid h3 { font-family: var(--serif); font-size: 20px; font-weight: 500; margin-bottom: 10px; }
.epi-grid p { font-size: 14.5px; color: var(--ink-2); }
.k { font-weight: 600; padding: 0 2px; }
.k-blue { color: var(--blue-deep); }
.k-green { color: var(--green); }
.k-amber { color: var(--amber-text); }
.k-red { color: var(--red-text); }

.foot {
  border-top: 1px solid var(--hairline);
  padding: 26px 28px 34px;
  text-align: center;
  font-size: 13px; color: var(--ink-3);
}

/* ============ tooltip ============ */
.tooltip {
  position: fixed; z-index: 80; pointer-events: none;
  background: var(--ink); color: #fff;
  border-radius: 8px; padding: 10px 13px;
  font-size: 12.5px; line-height: 1.5;
  max-width: 280px;
  opacity: 0; transform: translateY(4px);
  transition: opacity .12s ease, transform .12s ease;
  box-shadow: 0 8px 24px rgba(23,32,43,0.28);
}
.tooltip.show { opacity: 1; transform: none; }
.tooltip .tt-title { font-weight: 600; margin-bottom: 4px; font-size: 12px; color: #E3E7EC; }
.tooltip .tt-row { display: flex; align-items: baseline; gap: 8px; white-space: nowrap; }
.tooltip .tt-key { width: 12px; height: 3px; border-radius: 2px; align-self: center; flex: none; }
.tooltip .tt-val { font-weight: 600; font-variant-numeric: tabular-nums; }
.tooltip .tt-lbl { color: #B9C0CA; font-size: 11.5px; }

/* ============ in-view chart animation ============ */
@media (prefers-reduced-motion: no-preference) {
  .anim-line path.data-line {
    stroke-dasharray: var(--len, 2000);
    stroke-dashoffset: var(--len, 2000);
  }
  .anim-line.in-view path.data-line {
    animation: drawline 1.4s cubic-bezier(.4,0,.2,1) forwards;
  }
  @keyframes drawline { to { stroke-dashoffset: 0; } }

  .anim-line .area-fill { opacity: 0; transition: opacity .7s ease .8s; }
  .anim-line.in-view .area-fill { opacity: 1; }

  .anim-line .anno-g, .anim-line .end-dot { opacity: 0; transition: opacity .5s ease 1.2s; }
  .anim-line.in-view .anno-g, .anim-line.in-view .end-dot { opacity: 1; }

  .anim-bars rect.bar { transform: scaleX(0); transform-origin: left center; }
  .anim-bars.in-view rect.bar { animation: growbar .7s cubic-bezier(.4,0,.2,1) forwards; }
  @keyframes growbar { to { transform: scaleX(1); } }
  .anim-bars .bar-value, .anim-bars .bar-note { opacity: 0; transition: opacity .4s ease .6s; }
  .anim-bars.in-view .bar-value, .anim-bars.in-view .bar-note { opacity: 1; }
}

/* ============ responsive ============ */
@media (max-width: 1280px) {
  .rail { display: none; }
}
@media (max-width: 900px) {
  body { font-size: 16px; }
  .topnav a { padding: 6px 7px; font-size: 12px; }
  .topnav a .n { display: none; }
  .chart-pair { grid-template-columns: 1fr; }
  .map-flex { grid-template-columns: 1fr; }
  .kpi-row { grid-template-columns: 1fr 1fr; }
  .rec-cards { grid-template-columns: 1fr; }
  .epi-grid { grid-template-columns: 1fr; }
  .waffle-flex { grid-template-columns: 1fr; }
  .versus-cols { grid-template-columns: 1fr; }
  .versus-col + .versus-col { border-left: none; border-top: 1px solid var(--hairline); padding-left: 0; padding-top: 14px; margin-top: 10px; }
  .scrolly { display: block; margin-left: 0; margin-right: 0; }
  .scrolly-panel { top: 62px; padding: 12px 12px 8px; }
  .scrolly-steps { padding: 6vh 0 8vh; }
  .step { max-width: none; margin: 0 0 72vh; }
  .step:first-child { margin-top: 34vh; }
}
@media (max-width: 640px) {
  .act-head h2 br, .hero h1 br { display: none; }
  .topbar { gap: 10px; padding: 0 14px; }
  .top-ext { display: none; }
  .act, .hero, .epilogue { padding-left: 16px; padding-right: 16px; }
  .hero { padding-top: 110px; }
  .chart-card { padding: 14px 14px 10px; }
  .kpi .k-value { font-size: 26px; }
}