:root {
  --bg: #07080d;
  --bg-2: #0d0f18;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-2: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.09);
  --line-2: rgba(255, 255, 255, 0.16);
  --ink: #eef1f7;
  --ink-dim: #a2abbd;
  --ink-faint: #6e7789;
  --accent: #ffd166;
  --radius: 16px;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; border-bottom: 1px solid rgba(255, 209, 102, 0.3); }
a:hover { border-bottom-color: var(--accent); }

.wrap { width: min(1180px, calc(100% - 2.5rem)); margin-inline: auto; }

/* ---------- aurora backdrop ---------- */
.aurora { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.aurora span {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5;
}
.aurora span:nth-child(1) { width: 46vw; height: 46vw; left: -10vw; top: -12vw; background: radial-gradient(circle, #b45309, transparent 68%); }
.aurora span:nth-child(2) { width: 42vw; height: 42vw; right: -8vw; top: 4vw; background: radial-gradient(circle, #9f1239, transparent 68%); }
.aurora span:nth-child(3) { width: 54vw; height: 54vw; left: 24vw; top: 46vw; background: radial-gradient(circle, #0e7490, transparent 70%); }

/* ---------- hero ---------- */
.hero { padding: clamp(4rem, 11vh, 8rem) 0 clamp(2.5rem, 6vh, 4rem); }
.kicker {
  font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint); margin: 0 0 1.4rem; font-weight: 600;
}
.hero h1 {
  font-size: clamp(2.7rem, 8.5vw, 5.6rem); line-height: 0.98; letter-spacing: -0.035em;
  font-weight: 800; margin: 0 0 1.6rem;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, #ffd166 10%, #ff6b6b 45%, #7dd3fc 85%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede { font-size: clamp(1.02rem, 1.9vw, 1.28rem); color: var(--ink-dim); max-width: 62ch; margin: 0 0 1.8rem; }
.stamp { font-family: var(--mono); font-size: 0.78rem; color: var(--ink-faint); margin: 0; }

/* ---------- controls ---------- */
.controls {
  position: sticky; top: 0; z-index: 40;
  background: rgba(7, 8, 13, 0.82);
  backdrop-filter: blur(18px) saturate(1.4);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.controls-inner {
  display: flex; flex-wrap: wrap; gap: 1rem 1.75rem; align-items: center;
  padding: 0.9rem 0;
}
.ctl { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.72rem; }
.ctl > span {
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); font-weight: 600;
  display: flex; gap: 0.45rem; align-items: baseline;
}
.ctl > span b { font-family: var(--mono); color: var(--accent); letter-spacing: 0; text-transform: none; font-size: 0.8rem; }
.ctl.toggle { flex-direction: row; align-items: center; gap: 0.5rem; }
.ctl.toggle span { text-transform: none; letter-spacing: 0; font-size: 0.82rem; color: var(--ink-dim); }

select, input[type='number'] {
  appearance: none; background: var(--panel-2); color: var(--ink);
  border: 1px solid var(--line-2); border-radius: 9px;
  padding: 0.42rem 2rem 0.42rem 0.65rem; font: inherit; font-size: 0.85rem;
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-dim) 50%), linear-gradient(135deg, var(--ink-dim) 50%, transparent 50%);
  background-position: calc(100% - 15px) 52%, calc(100% - 10px) 52%;
  background-size: 5px 5px, 5px 5px; background-repeat: no-repeat;
  cursor: pointer; max-width: 100%;
}
select:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
option { background: #14161f; color: var(--ink); }

input[type='range'] {
  appearance: none; width: 172px; height: 4px; border-radius: 3px;
  background: var(--line-2); cursor: pointer;
}
input[type='range']::-webkit-slider-thumb {
  appearance: none; width: 15px; height: 15px; border-radius: 50%;
  background: var(--accent); border: 2px solid var(--bg); cursor: grab;
}
input[type='range']::-moz-range-thumb {
  width: 15px; height: 15px; border-radius: 50%; background: var(--accent);
  border: 2px solid var(--bg); cursor: grab;
}
input[type='checkbox'] { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }

/* ---------- sections ---------- */
.band { padding: clamp(2.75rem, 7vh, 4.75rem) 0; }
.section-head { max-width: 68ch; margin-bottom: 2rem; }
.section-head h2 {
  font-size: clamp(1.5rem, 3.4vw, 2.15rem); letter-spacing: -0.025em; font-weight: 700;
  margin: 0 0 0.55rem;
}
.section-head p { color: var(--ink-dim); margin: 0; font-size: 0.98rem; }

/* ---------- overview: four period tables ---------- */
.band-tight { padding-top: clamp(1.75rem, 4vh, 2.75rem); }

.periods {
  /* Four tables want a 2x2 block, not three-plus-one orphan. */
  display: grid; gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(430px, 1fr));
}
.period {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  overflow: hidden;
}
.period > header { padding: 1.35rem 1.5rem 1.1rem; border-bottom: 1px solid var(--line); }
.period h2 {
  margin: 0; font-size: 0.76rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 700;
  display: flex; align-items: baseline; gap: 0.5rem;
}
.period h2 small {
  font-size: 0.85rem; letter-spacing: 0.04em; text-transform: none;
  color: var(--ink-dim); font-weight: 500;
}
.period-total {
  font-family: var(--mono); font-size: clamp(1.9rem, 4.6vw, 2.7rem); font-weight: 600;
  letter-spacing: -0.035em; line-height: 1.05; margin-top: 0.4rem; color: var(--accent);
}

.period table { width: 100%; border-collapse: collapse; }
.period td { padding: 0.62rem 1.5rem; vertical-align: middle; }
.period tbody tr {
  /* A tint behind each row shows its share without needing a separate chart. */
  background: linear-gradient(to right,
    color-mix(in srgb, var(--tint) 15%, transparent) var(--share, 0%),
    transparent var(--share, 0%));
  border-bottom: 1px solid rgba(255, 255, 255, 0.045);
}
.period td.n { display: flex; align-items: center; gap: 0.6rem; font-size: 0.9rem; }
.period td.n .flag { font-size: 1.05rem; }
.period td.n .nm { display: flex; flex-direction: column; line-height: 1.25; }
.period td.n .nm small { color: var(--ink-faint); font-size: 0.72rem; }
.period td.v {
  text-align: right; font-family: var(--mono); font-size: 0.94rem; white-space: nowrap;
}
.period tfoot td {
  border-top: 1px solid var(--line-2); font-weight: 700; font-size: 0.88rem;
  padding-top: 0.8rem; padding-bottom: 0.9rem; background: rgba(0, 0, 0, 0.2);
}
.period tfoot td.v { font-size: 1rem; color: var(--accent); }
/* Settings recap as chips — scannable, not a sentence to decode. */
.periods-note {
  grid-column: 1 / -1; margin: 0.3rem 0 0;
  display: flex; flex-wrap: wrap; gap: 0.4rem;
}
.periods-note span {
  font-size: 0.74rem; color: var(--ink-dim); font-weight: 500;
  border: 1px solid var(--line); border-radius: 999px; padding: 0.2rem 0.65rem;
  background: var(--panel);
}

/* ---------- overview: one-off cost ---------- */
.upfront-inner {
  border: 1px solid var(--line); border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.4rem 1.6rem; background: var(--panel);
}
.upfront-lbl {
  font-size: 0.7rem; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 700;
}
.upfront-lbl small {
  letter-spacing: 0.04em; text-transform: none; font-size: 0.82rem; color: var(--ink-dim);
  margin-left: 0.4rem; font-weight: 500;
}
.upfront-val {
  font-family: var(--mono); font-size: clamp(1.8rem, 4.4vw, 2.5rem); font-weight: 600;
  letter-spacing: -0.035em; margin: 0.35rem 0 0.85rem;
}
/* Three facts side by side instead of a paragraph explaining them. */
.upfront-split { display: flex; flex-wrap: wrap; gap: 0.6rem 2.5rem; }
.fact { display: flex; flex-direction: column; gap: 0.1rem; }
.fact-l { font-size: 0.72rem; color: var(--ink-faint); font-weight: 600; }
.fact-l i { font-style: normal; color: var(--ink-dim); margin-left: 0.3rem; }
.fact-v { font-family: var(--mono); font-size: 1.05rem; font-weight: 600; }

/* ---------- overview: how it works ---------- */
.steps { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(275px, 1fr)); }
.step { border-top: 2px solid var(--line-2); padding-top: 1rem; }
.step b {
  font-family: var(--mono); font-size: 0.8rem; color: var(--accent); font-weight: 600;
  display: block; margin-bottom: 0.35rem;
}
.step h3 { margin: 0 0 0.45rem; font-size: 1rem; letter-spacing: -0.015em; }
.step h3 small { color: var(--ink-faint); font-weight: 400; margin-left: 0.4rem; font-size: 0.85rem; }
.step p { margin: 0; font-size: 0.87rem; color: var(--ink-dim); }

/* ---------- overview: call to action ---------- */
.cta {
  display: flex; flex-wrap: wrap; gap: 1.5rem; align-items: center; justify-content: space-between;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 1.6rem 1.8rem;
  background: var(--panel);
}
.cta h2 { margin: 0 0 0.4rem; font-size: 1.25rem; letter-spacing: -0.02em; }
.cta p { margin: 0; color: var(--ink-dim); font-size: 0.9rem; max-width: 62ch; }
.btn {
  border: 1px solid var(--accent); border-radius: 10px; padding: 0.7rem 1.2rem;
  color: var(--accent); font-weight: 600; font-size: 0.9rem; white-space: nowrap;
  background: rgba(255, 209, 102, 0.08);
}
.btn:hover { background: var(--accent); color: #0b0c12; border-bottom-color: var(--accent); }

.ctl-link {
  margin-left: auto; font-size: 0.82rem; font-weight: 600; color: var(--accent);
  background: none; border: 0; border-bottom: 1px solid rgba(255, 209, 102, 0.3);
  cursor: pointer; font-family: inherit; padding: 0;
}
.ctl-link:hover { border-bottom-color: var(--accent); }

.hero-slim { padding-bottom: clamp(1.5rem, 4vh, 2.5rem); }
.hero-slim h1 { font-size: clamp(2.3rem, 6.5vw, 4.2rem); margin-bottom: 1.1rem; }
.crumb { font-size: 0.82rem; margin: 0 0 1.4rem; }
.crumb a { color: var(--ink-dim); border-bottom-color: transparent; }
.crumb a:hover { color: var(--accent); }

/* ---------- headline totals ---------- */
.totals {
  display: grid; gap: 1px; background: var(--line);
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
.tot { background: var(--bg-2); padding: 1.5rem 1.4rem; }
.tot .lbl {
  font-size: 0.68rem; letter-spacing: 0.13em; text-transform: uppercase;
  color: var(--ink-faint); font-weight: 700; margin-bottom: 0.5rem;
}
.tot .val {
  font-family: var(--mono); font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  font-weight: 600; letter-spacing: -0.03em; line-height: 1.1;
}
.tot .sub { font-size: 0.76rem; color: var(--ink-faint); margin-top: 0.4rem; }
.tot.flag .val { color: var(--accent); }
.totals-note { color: var(--ink-faint); font-size: 0.83rem; margin: 1rem 0 0; max-width: 78ch; }

/* ---------- chart ---------- */
.chart { display: flex; flex-direction: column; gap: 0.85rem; }
.crow { display: grid; grid-template-columns: 190px 1fr auto; gap: 1rem; align-items: center; }
.crow .cname { font-size: 0.85rem; font-weight: 600; display: flex; gap: 0.45rem; align-items: center; }
.crow .cname small { color: var(--ink-faint); font-weight: 400; }
.cbar { display: flex; height: 26px; border-radius: 6px; overflow: hidden; background: var(--panel); }
.cbar i { display: block; height: 100%; transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1); }
.crow .cval { font-family: var(--mono); font-size: 0.83rem; color: var(--ink-dim); min-width: 88px; text-align: right; }
.crow.off { opacity: 0.28; }

.legend { display: flex; flex-wrap: wrap; gap: 0.5rem 1.15rem; margin-top: 1.4rem; }
.legend span { font-size: 0.75rem; color: var(--ink-dim); display: flex; align-items: center; gap: 0.4rem; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: block; }

/* ---------- asset cards ---------- */
.assets { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(430px, 1fr)); }
@media (max-width: 700px) { .assets { grid-template-columns: 1fr; } }

.card {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
  overflow: hidden; position: relative;
}
.card::before {
  content: ''; position: absolute; inset: 0 0 auto; height: 2px;
  background: var(--card-accent, var(--accent)); opacity: 0.8;
}
.card.disabled { opacity: 0.45; }

.card-head { padding: 1.5rem 1.5rem 1.2rem; border-bottom: 1px solid var(--line); }
.card-title { display: flex; align-items: flex-start; gap: 0.7rem; }
.card-title .flag { font-size: 1.45rem; line-height: 1.2; }
.card-title h3 { margin: 0; font-size: 1.2rem; letter-spacing: -0.02em; font-weight: 700; }
.card-title .native { font-size: 0.8rem; color: var(--ink-faint); font-family: var(--mono); }
.card-title .onoff { margin-left: auto; }
.blurb { color: var(--ink-dim); font-size: 0.88rem; margin: 0.9rem 0 0; }

.card-inputs { display: flex; flex-wrap: wrap; gap: 0.85rem 1.25rem; padding: 1.1rem 1.5rem; border-bottom: 1px solid var(--line); background: rgba(0, 0, 0, 0.18); }
.card-inputs .ctl { font-size: 0.68rem; }
.card-inputs select { max-width: 100%; }
.card-inputs .full { flex: 1 1 100%; }
.hint { flex: 1 1 100%; font-size: 0.76rem; color: var(--ink-faint); margin: 0; }
.unavailable {
  flex: 1 1 100%; font-size: 0.78rem; color: #fca5a5; margin: 0;
  background: rgba(248, 113, 113, 0.1); border: 1px solid rgba(248, 113, 113, 0.28);
  border-radius: 8px; padding: 0.5rem 0.7rem;
}
.owned-tag {
  flex: 1 1 100%; margin: 0; font-size: 0.8rem; font-weight: 600; color: #6ee7b7;
  background: rgba(52, 211, 153, 0.1); border: 1px solid rgba(52, 211, 153, 0.28);
  border-radius: 8px; padding: 0.45rem 0.7rem;
}

input.num {
  appearance: textfield; background: var(--panel-2); color: var(--ink);
  border: 1px solid var(--line-2); border-radius: 9px;
  padding: 0.42rem 0.65rem; font: inherit; font-family: var(--mono); font-size: 0.88rem;
  width: 100%; max-width: 190px;
}
input.num:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(84px, 1fr)); gap: 1px; background: var(--line); }
.kpi { background: rgba(0, 0, 0, 0.24); padding: 1rem 0.9rem; }
.kpi .lbl { font-size: 0.62rem; letter-spacing: 0.11em; text-transform: uppercase; color: var(--ink-faint); font-weight: 700; }
.kpi .val { font-family: var(--mono); font-size: 1.02rem; font-weight: 600; margin-top: 0.3rem; letter-spacing: -0.02em; }
.kpi .alt { font-size: 0.68rem; color: var(--ink-faint); font-family: var(--mono); }
@media (max-width: 520px) { .kpis { grid-template-columns: repeat(2, 1fr); } }

details.block { border-top: 1px solid var(--line); }
details.block > summary {
  padding: 0.85rem 1.5rem; cursor: pointer; font-size: 0.78rem; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-dim);
  display: flex; align-items: center; gap: 0.5rem; list-style: none;
}
details.block > summary::-webkit-details-marker { display: none; }
details.block > summary::before {
  content: '+'; font-family: var(--mono); color: var(--accent); font-size: 1rem; width: 1ch;
}
details.block[open] > summary::before { content: '−'; }
details.block > summary:hover { color: var(--ink); background: rgba(255, 255, 255, 0.03); }
details.block .body { padding: 0.3rem 1.5rem 1.4rem; }

/* line items */
.li { border-bottom: 1px solid rgba(255, 255, 255, 0.05); padding: 0.6rem 0; }
.li:last-child { border-bottom: 0; }
.li-top { display: flex; gap: 0.75rem; align-items: baseline; }
.li-lbl { font-size: 0.86rem; flex: 1; }
.li-amt { font-family: var(--mono); font-size: 0.85rem; white-space: nowrap; }
.li-amt.zero { color: var(--ink-faint); }
/* Notes carry the actual reasoning, so they get body-text legibility rather
   than fine-print treatment. */
.li-note {
  font-size: 0.85rem; line-height: 1.6; color: var(--ink-dim); margin: 0.45rem 0 0;
  border-left: 2px solid var(--line-2); padding-left: 0.75rem;
}
.li-src { font-size: 0.72rem; margin-top: 0.35rem; }
.li-src a { color: var(--ink-faint); border-bottom-color: transparent; }
.li-src a:hover { color: var(--accent); }
.li-total { display: flex; gap: 0.75rem; margin-top: 0.9rem; padding-top: 0.7rem; border-top: 1px solid var(--line-2); font-weight: 600; font-size: 0.88rem; }
.li-total span:last-child { margin-left: auto; font-family: var(--mono); }

.pill {
  font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.08em; font-weight: 700;
  padding: 0.1rem 0.4rem; border-radius: 4px; vertical-align: 1px; white-space: nowrap;
}
.pill.est { background: rgba(251, 146, 60, 0.16); color: #fdba74; border: 1px solid rgba(251, 146, 60, 0.3); }
.pill.ref { background: rgba(52, 211, 153, 0.14); color: #6ee7b7; border: 1px solid rgba(52, 211, 153, 0.3); }
.pill.info { background: rgba(148, 163, 184, 0.14); color: #cbd5e1; border: 1px solid rgba(148, 163, 184, 0.3); }

/* year table */
table.yrs { width: 100%; border-collapse: collapse; font-size: 0.82rem; }
table.yrs th, table.yrs td { padding: 0.42rem 0.5rem; text-align: right; border-bottom: 1px solid rgba(255, 255, 255, 0.05); }
table.yrs th { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint); font-weight: 700; }
table.yrs th:first-child, table.yrs td:first-child { text-align: left; }
table.yrs td { font-family: var(--mono); }
table.yrs tfoot td { border-bottom: 0; border-top: 1px solid var(--line-2); font-weight: 600; color: var(--ink); }
table.yrs .dim { color: var(--ink-faint); }

/* ---------- caveats ---------- */
.caveats { display: grid; gap: 1.15rem; grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); }
.caveat {
  border: 1px solid var(--line); border-left: 2px solid var(--accent);
  border-radius: 0 12px 12px 0; padding: 1.15rem 1.3rem; background: var(--panel);
}
.caveat h4 { margin: 0 0 0.5rem; font-size: 0.96rem; letter-spacing: -0.01em; }
.caveat p { margin: 0; font-size: 0.86rem; color: var(--ink-dim); }
.caveat .li-src { margin-top: 0.6rem; }

/* ---------- sources ---------- */
.sources { display: grid; gap: 0.35rem 1.5rem; grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }
.sources a { font-size: 0.8rem; color: var(--ink-dim); border-bottom-color: transparent; display: block; padding: 0.25rem 0; }
.sources a:hover { color: var(--accent); }
.sources a::before { content: '→ '; color: var(--ink-faint); }

/* ---------- narrow screens ---------- */
@media (max-width: 680px) {
  /* Five stacked controls would eat half the viewport if they stayed pinned. */
  .controls { position: static; }
  .controls-inner { gap: 0.9rem 1.25rem; }
  input[type='range'] { width: 100%; min-width: 150px; }
  .ctl { flex: 1 1 140px; }
  .ctl.toggle { flex-basis: 100%; }

  .crow { grid-template-columns: 1fr auto; row-gap: 0.4rem; }
  .crow .cbar { grid-column: 1 / -1; height: 22px; }
  .crow .cval { text-align: left; min-width: 0; }

  .card-head, .card-inputs, details.block > summary, details.block .body { padding-inline: 1.15rem; }
  table.yrs { font-size: 0.76rem; }
  table.yrs th, table.yrs td { padding: 0.36rem 0.3rem; }

  .periods { grid-template-columns: 1fr; }
  .period > header { padding: 1.1rem 1.15rem 0.9rem; }
  .period td { padding-inline: 1.15rem; }
  .ctl-link { margin-left: 0; flex-basis: 100%; }
  .cta { padding: 1.25rem; }
  .btn { width: 100%; text-align: center; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cbar i { transition: none; }
}

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); padding: 2.5rem 0 4rem; margin-top: 2rem; }
footer p { font-size: 0.85rem; margin: 0 0 0.6rem; }
footer .muted { color: var(--ink-faint); font-size: 0.78rem; }