/* Flat 20% Tax Explainer — stylesheet
   Palette: ink #0a0d0c · panel #121917 · text #e6ebe7 · neon #3ddc97 · amber #f2b134
   Chart/bar steps (validated on the dark surface): green #1fa971 · amber #c4861a · grey #2a3632 */

:root {
  color-scheme: dark;
  --bg: #0a0d0c;
  --bg-2: #0c1210;
  --panel: #121917;
  --line: #1f2a26;
  --line-2: #2a3632;
  --text: #e6ebe7;
  --text-strong: #f4f6f2;
  --text-sec: #b4bdb6;
  --text-muted: #8f9993;
  --text-ref: #7e8882;
  --neon: #3ddc97;
  --neon-ink: #03140d;
  --neon-ink-2: #0d4a32;
  --amber: #f2b134;
  --amber-ink: #1a1105;
  --bar-own: #c4861a;
  --bar-gov: #1fa971;
  --bar-leak: #2a3632;
  --font-body: "IBM Plex Sans", "Segoe UI", Helvetica, Arial, sans-serif;
  --font-disp: "Anton", "Impact", "Arial Narrow", sans-serif;
  --font-mono: "IBM Plex Mono", Consolas, "Courier New", monospace;
}

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

html { background: var(--bg); scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-wrap: pretty;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  background-attachment: fixed;
}
@supports (text-wrap: pretty) { p { text-wrap: pretty; } }

::selection { background: var(--neon); color: var(--bg); }
:focus-visible { outline: 2px solid var(--neon); outline-offset: 3px; border-radius: 3px; }
html { scrollbar-color: var(--line-2) var(--bg); }

a { color: var(--neon); text-decoration-thickness: 1px; text-underline-offset: 4px; }
a:hover { color: #8ff0c4; }

h1, h2, h3, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
strong { color: var(--text-strong); }

h1, h2, .disp {
  font-family: var(--font-disp);
  font-weight: 400;
  letter-spacing: 0.005em;
  line-height: 0.96;
  text-transform: uppercase;
  color: var(--text-strong);
}
h2 { font-size: clamp(30px, 5vw, 46px); text-wrap: balance; }
h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.25;
  color: var(--text-strong);
}
.disp-sentence { text-transform: none; letter-spacing: 0.01em; line-height: 1.1; }

.big {
  font-family: var(--font-disp);
  font-weight: 400;
  line-height: 0.95;
  color: var(--text-strong);
  font-variant-numeric: lining-nums;
}
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.eyebrow { font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; }
.sec { color: var(--text-sec); }
.muted { color: var(--text-muted); }
.neon { color: var(--neon); }
.amber { color: var(--amber); }
.small { font-size: 16px; line-height: 1.5; }
.ref { font-size: 14px; line-height: 1.5; color: var(--text-ref); }
.lede { font-size: clamp(19px, 2.6vw, 24px); line-height: 1.45; max-width: 720px; color: #c9d1cc; }
.measure { max-width: 720px; }
.hr { height: 1px; background: var(--line); }

/* Layout */
.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 56px 24px 96px;
  display: flex;
  flex-direction: column;
  gap: 88px;
  background-image: radial-gradient(rgba(255,255,255,0.04) 0.6px, transparent 0.6px);
  background-size: 3px 3px;
}
@media (min-width: 720px) { .page { padding: 72px 40px 112px; gap: 104px; } }

section { display: flex; flex-direction: column; gap: 26px; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.stack-sm { display: flex; flex-direction: column; gap: 8px; }
.stack-lg { display: flex; flex-direction: column; gap: 18px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 719px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); }
  .grid-4.keep-2, .grid-3.keep-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 4px; padding: 20px 22px; }
.panel-neon { background: var(--neon); color: var(--neon-ink); border-radius: 4px; padding: 22px 24px; }
.panel-neon .big, .panel-neon strong, .panel-neon .disp { color: var(--neon-ink); }
.panel-neon .sub { color: var(--neon-ink-2); }
.panel-outline-neon { border-color: var(--neon); }
.callout { display: flex; gap: 16px; align-items: flex-start; }
.callout svg { flex: none; margin-top: 3px; }

/* Section heading row: big numeral + heading */
.sec-head { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 16px; align-items: start; }
.sec-head .num { font-family: var(--font-disp); font-size: 56px; line-height: 0.9; color: var(--amber); }
@media (min-width: 720px) {
  .sec-head { grid-template-columns: 88px minmax(0, 1fr); gap: 24px; }
  .sec-head .num { font-size: 72px; }
}

/* Pills */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 10px; border-radius: 3px;
  font-family: var(--font-mono); font-size: 13px; font-weight: 600; line-height: 1.2;
}
.pill-gov { background: #0f2f22; color: var(--neon); border: 1px solid #1c5a40; }
.pill-own { background: #2d2210; color: var(--amber); border: 1px solid #5a4216; }
.pill-leak { background: #171d1a; color: #aab5ad; border: 1px solid var(--line-2); }
.pills { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chain { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chain .arrow { color: var(--text-muted); }

/* Bars */
.bar { display: flex; gap: 2px; width: 100%; height: 22px; }
.bar.tall { height: 40px; }
.bar.taller { height: 48px; }
.bar > div { display: flex; align-items: center; min-width: 0; overflow: hidden; }
.bar > div:first-child { border-radius: 4px 0 0 4px; }
.bar > div:last-child { border-radius: 0 4px 4px 0; }
.bar .own { background: var(--bar-own); color: var(--amber-ink); }
.bar .gov { background: var(--bar-gov); color: var(--neon-ink); justify-content: center; }
.bar .leak { background: var(--bar-leak); color: #aab5ad; justify-content: center; }
.bar .lbl { font-size: 14px; font-weight: 600; padding: 0 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar .lbl.light { color: #d6dcd7; }
@media (max-width: 719px) { .bar .lbl { font-size: 12px; padding: 0 6px; } .bar .gov .lbl { padding: 0 3px; font-size: 11px; } .bar .lbl.hide-sm { display: none; } }
.bar-row { display: flex; align-items: center; gap: 14px; }
.bar-row .lab { width: 180px; flex: none; }
@media (max-width: 719px) { .bar-row .lab { width: 110px; } }
.bar-row .track { height: 22px; border-radius: 0 4px 4px 0; }
.row-head { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; }

/* Hero */
.hero { display: flex; flex-direction: column; gap: 28px; }
.hero h1 { font-size: clamp(56px, 12vw, 112px); }
.toc { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 719px) { .toc { grid-template-columns: minmax(0, 1fr); } }
.navlink {
  display: flex; flex-direction: column; gap: 6px;
  padding: 18px 20px; background: var(--panel); border: 1px solid var(--line); border-radius: 4px;
  text-decoration: none; color: var(--text);
  transition: border-color 160ms ease-out;
}
.navlink:hover, .navlink:focus-visible { border-color: var(--neon); color: var(--text); }
.navlink .title { font-weight: 600; color: var(--text-strong); }

/* Part dividers */
.part-head { display: flex; flex-direction: column; gap: 14px; }
.part-head h2 { font-size: clamp(48px, 9vw, 72px); }
.part-2 {
  display: flex; flex-direction: column; gap: 18px;
  padding: 48px 24px; margin: 0 -24px;
  background: var(--neon); color: var(--neon-ink);
}
@media (min-width: 720px) { .part-2 { padding: 56px 40px; margin: 0 -40px; } }
.part-2 h2, .part-2 strong { color: var(--neon-ink); }
.part-2 .lede { color: var(--neon-ink); }
.part-2 .eyebrow, .part-2 a { color: var(--neon-ink-2); }
.part-2 a { font-weight: 600; }

/* The loop */
.loop { display: grid; grid-template-columns: minmax(0, 1fr); gap: 24px; align-items: center; }
.loop svg { width: 100%; max-width: 420px; height: auto; margin: 0 auto; display: block; overflow: visible; }
@media (min-width: 720px) { .loop { grid-template-columns: 420px minmax(0, 1fr); gap: 36px; } }
@keyframes flow { to { stroke-dashoffset: -60; } }
.flow { stroke-dasharray: 6 14; animation: flow 1.6s linear infinite; }
@keyframes pulse { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }
.pulse { animation: pulse 2.4s ease-in-out infinite; }
@media (prefers-reduced-motion: reduce) { .flow, .pulse { animation: none; } html { scroll-behavior: auto; } }

/* Steps table */
.steps { display: flex; flex-direction: column; }
.steps-head, .step {
  display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 12px 16px; padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.steps-head { padding: 0 0 10px; border-bottom-color: var(--line-2); }
.steps-head .c3 { display: none; }
.step:last-child { border-bottom: 0; }
.step .n { font-family: var(--font-disp); font-size: 32px; line-height: 1; color: var(--amber); }
.step .what { display: flex; flex-direction: column; gap: 10px; }
.step .tax { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; grid-column: 2; }
@media (min-width: 720px) {
  .steps-head, .step { grid-template-columns: 48px minmax(0, 1fr) 240px; gap: 24px; }
  .steps-head .c3 { display: block; }
  .step .tax { grid-column: auto; }
  .step .n { font-size: 36px; }
}

/* Arrow rows (3-up with arrows between) */
.flow-3 { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; align-items: stretch; }
.flow-3 .arrow-ico { display: none; }
@media (min-width: 720px) {
  .flow-3 { grid-template-columns: minmax(0, 1fr) 32px minmax(0, 1fr) 32px minmax(0, 1.2fr); }
  .flow-3 .arrow-ico { display: block; align-self: center; }
}
.loop-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; align-items: stretch; }
.loop-grid .arrow-ico { display: none; }
@media (min-width: 720px) {
  .loop-grid { grid-template-columns: minmax(0, 1fr) 28px minmax(0, 1fr) 28px minmax(0, 1fr); gap: 12px 6px; }
  .loop-grid .arrow-ico { display: block; align-self: center; }
}
.trade { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; align-items: center; }
.trade .arrow-ico { display: none; }
@media (min-width: 720px) { .trade { grid-template-columns: minmax(0, 1fr) 40px minmax(0, 1fr); } .trade .arrow-ico { display: block; } }

/* Chart */
.chart svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart-title { font-size: 18px; }

/* Pull quote */
.pull { display: flex; flex-direction: column; gap: 12px; padding: 28px 0; border-top: 2px solid var(--text-strong); border-bottom: 2px solid var(--text-strong); }
.pull .disp { font-size: clamp(26px, 4.2vw, 40px); }

/* Verdict */
.verdict { padding-top: 48px; border-top: 2px solid var(--text-strong); gap: 30px; }
.verdict h2.title { font-size: clamp(48px, 9vw, 72px); }
.quote { font-size: 21px; line-height: 1.35; color: var(--text-strong); }
.footnav { display: flex; gap: 24px; flex-wrap: wrap; padding-top: 20px; border-top: 1px solid var(--line); }
.footnav a { font-weight: 600; font-size: 16px; }

/* Numbered mini-list */
.minilist { display: flex; flex-direction: column; gap: 8px; }
.minilist li { display: flex; gap: 10px; align-items: baseline; }
.minilist .k { font-family: var(--font-mono); color: var(--amber); flex: none; }