/* fonts:start (self-hosted, SIL Open Font License; see fonts/) */
@font-face { font-family: "Newsreader"; src: url("fonts/newsreader-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("fonts/newsreader-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("fonts/newsreader-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/ibm-plex-sans-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
/* fonts:end */

/* Layout: a left-aligned editorial column on a 72rem grid. The hero pairs the thesis with a
   decoded MAUDE-style record; sections below are full-width bands separated by hairlines. */
:root {
  --bg: #F3F7F8;
  --surface: #FFFFFF;
  --ink: #0B2E4F;
  --fg: #1D3447;
  --muted: #55687A;
  --line: #D2DEE3;
  --accent: #13798A;
  --accent-bright: #1FA6B8;
  --on-accent: #FFFFFF;
  --wash: #DDF0F3;
  --wash-on: #B9E3EA;
  --hatch: #C4D8DF;
  --shadow: rgba(11, 46, 79, 0.18);
  --band: #0B2E4F;
  --band-2: #0F4664;
  --band-fg: #E4F1F4;
  --band-muted: #A7C6D1;

  --display: "Newsreader", Georgia, "Times New Roman", serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --step--2: 0.6875rem;
  --step--1: 0.8125rem;
  --step-0: 1rem;
  --step-1: 1.1875rem;
  --step-3: clamp(1.75rem, 3vw, 2.375rem);
  --step-4: clamp(2.35rem, 5.4vw, 4.125rem);

  --wrap: 72rem;
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 6px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #071B2C;
    --surface: #0C2539;
    --ink: #EAF4F7;
    --fg: #C8D9E1;
    --muted: #8EA4B2;
    --line: #1F3B51;
    --accent: #55CAD8;
    --accent-bright: #2BC0D0;
    --on-accent: #06192A;
    --wash: #0F3B4F;
    --wash-on: #17566D;
    --hatch: #2A4A5F;
    --shadow: rgba(0, 0, 0, 0.45);
    --band: #04121F;
    --band-2: #0A2A40;
    --band-fg: #E4F1F4;
    --band-muted: #8FB0BD;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #071B2C;
  --surface: #0C2539;
  --ink: #EAF4F7;
  --fg: #C8D9E1;
  --muted: #8EA4B2;
  --line: #1F3B51;
  --accent: #55CAD8;
  --accent-bright: #2BC0D0;
  --on-accent: #06192A;
  --wash: #0F3B4F;
  --wash-on: #17566D;
  --hatch: #2A4A5F;
  --shadow: rgba(0, 0, 0, 0.45);
  --band: #04121F;
  --band-2: #0A2A40;
  --band-fg: #E4F1F4;
  --band-muted: #8FB0BD;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--body);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent-bright); outline-offset: 3px; border-radius: 2px; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.wrap {
  max-width: calc(var(--wrap) + 2 * var(--gutter));
  margin-inline: auto;
  padding-left: max(var(--gutter), env(safe-area-inset-left, 0px));
  padding-right: max(var(--gutter), env(safe-area-inset-right, 0px));
}

.label {
  display: block;
  margin: 0;
  font-family: var(--mono);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}

/* Header */
.site-head { border-bottom: 1px solid var(--line); }
.head-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 32px;
  padding-block: 18px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.mark { width: 34px; height: 34px; flex: none; }
.wordmark {
  font-family: var(--body);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.3em;
  background: linear-gradient(90deg, var(--ink) 10%, var(--accent-bright) 95%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.nav { display: flex; flex-wrap: wrap; gap: 6px 24px; }
.nav a { color: var(--muted); text-decoration: none; font-size: var(--step--1); font-weight: 500; }
.nav a:hover { color: var(--accent); }
@media (max-width: 600px) { .nav a:not(.nav-contact) { display: none; } }

/* Hero */
.hero { padding-block: clamp(36px, 6vw, 80px) clamp(56px, 8vw, 104px); }
.hero-grid { display: grid; gap: clamp(36px, 5vw, 64px); }
@media (min-width: 980px) {
  .hero-grid { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); align-items: start; }
}
.hero-copy { min-width: 0; }
.eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: var(--step--1);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
}
h1 {
  margin: 16px 0 24px;
  font-family: var(--display);
  font-weight: 500;
  font-size: var(--step-4);
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--ink);
  text-wrap: balance;
}
h1 em { font-style: italic; font-weight: 400; color: var(--accent); }
.lede { margin: 0; max-width: 36em; font-size: var(--step-1); line-height: 1.6; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  font: inherit;
  font-weight: 500;
  font-size: var(--step-0);
  line-height: 1.3;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.btn-quiet { background: transparent; color: var(--accent); }
.btn-quiet:hover { background: var(--wash); color: var(--ink); }
.btn-small { padding: 7px 12px; font-size: var(--step--1); }

.facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: var(--step--1);
  color: var(--muted);
}
.facts li { display: inline-flex; align-items: center; gap: 8px; }
.facts li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent-bright); }

/* The decoded record */
.record {
  min-width: 0;
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 24px 48px -28px var(--shadow);
}
.record-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
}
.chip-illustrative {
  padding: 2px 8px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  color: var(--ink);
  font-size: var(--step--2);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.record-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}
.record-meta dt {
  font-family: var(--mono);
  font-size: var(--step--2);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
}
.record-meta dd { margin: 2px 0 0; font-family: var(--mono); font-size: var(--step--1); color: var(--ink); }

.narrative-wrap { padding: 16px 18px 18px; }
.narrative {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 0.84rem;
  line-height: 1.95;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--fg);
}
.narrative mark {
  padding: 2px 2px;
  color: inherit;
  background-color: transparent;
  background-image: linear-gradient(var(--wash), var(--wash));
  background-repeat: no-repeat;
  background-size: 100% 100%;
  border-bottom: 2px solid var(--accent-bright);
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  transition: background-image 0.15s ease;
}
.narrative mark.is-on { background-image: linear-gradient(var(--wash-on), var(--wash-on)); }
.narrative sup {
  margin-left: 2px;
  font-size: 0.625rem;
  font-weight: 500;
  line-height: 0;
  color: var(--accent);
}
@media (prefers-reduced-motion: no-preference) {
  .narrative mark { animation: nro-sweep 0.55s ease-out both; animation-delay: 0.3s; }
  .narrative mark:nth-of-type(2) { animation-delay: 0.55s; }
  .narrative mark:nth-of-type(3) { animation-delay: 0.8s; }
  .narrative mark:nth-of-type(4) { animation-delay: 1.05s; }
}
@keyframes nro-sweep { from { background-size: 0% 100%; } to { background-size: 100% 100%; } }

.fields-label { padding: 0 18px 6px; }
.fields { margin: 0; padding: 0 18px 6px; list-style: none; }
.fields li {
  display: grid;
  grid-template-columns: 1.25rem minmax(0, 7.5rem) minmax(0, 1fr) auto;
  grid-template-areas: "n f v t";
  align-items: baseline;
  gap: 4px 12px;
  margin-inline: -8px;
  padding: 10px 8px;
  border-top: 1px solid var(--line);
  border-radius: 3px;
}
.fields li.is-on { background: var(--wash); }
.fields .n { grid-area: n; font-family: var(--mono); font-size: var(--step--1); font-weight: 500; color: var(--accent); }
.fields .f { grid-area: f; font-family: var(--mono); font-size: var(--step--2); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.fields .v { grid-area: v; font-size: 0.9375rem; line-height: 1.4; color: var(--ink); }
.fields .tag { grid-area: t; justify-self: end; }
@media (max-width: 560px) {
  .fields li { grid-template-columns: 1.25rem minmax(0, 1fr) auto; grid-template-areas: "n f t" ". v v"; }
  .record-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.question {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 12px;
  margin: 0;
  padding: 14px 18px 18px;
  border-top: 1px dashed var(--line);
}
.q-label { font-family: var(--mono); font-size: var(--step--2); letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
.q { flex: 1 1 100%; font-family: var(--display); font-style: italic; font-size: 1.1875rem; line-height: 1.35; color: var(--ink); }

/* Evidence tags: the category is carried by the border style and marker, not color alone */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px 8px;
  border: 1px solid var(--ink);
  border-radius: 3px;
  font-family: var(--mono);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.6;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--ink);
}
.tag::before { content: ""; flex: none; width: 7px; height: 7px; }
.tag-fact::before { border-radius: 50%; background: currentColor; }
.tag-est { border-style: dashed; border-color: var(--accent); color: var(--accent); }
.tag-est::before { border-radius: 50%; border: 1.5px solid currentColor; }
.tag-inf { border-style: dotted; border-width: 1.5px; }
.tag-inf::before { width: 6px; height: 6px; border: 1.5px solid currentColor; transform: rotate(45deg); }
.tag-unc {
  border-color: var(--muted);
  color: var(--fg);
  background: repeating-linear-gradient(135deg, transparent 0 4px, var(--hatch) 4px 5.5px);
}
.tag-unc::before { display: none; }

/* Sections */
.section { padding-block: clamp(56px, 8vw, 104px); }
.band-surface { background: var(--surface); border-block: 1px solid var(--line); }
.section-head { display: grid; gap: 14px; max-width: 46rem; margin-bottom: clamp(28px, 4vw, 48px); }
.section-head p { margin: 0; font-size: var(--step-1); }
h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 500;
  font-size: var(--step-3);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-wrap: balance;
}
h3 { margin: 0; font-family: var(--body); font-weight: 600; font-size: var(--step-1); line-height: 1.3; color: var(--ink); }

.caps { margin: 0; padding: 0; list-style: none; border-bottom: 1px solid var(--line); }
.cap { display: grid; gap: 14px 48px; padding-block: 28px; border-top: 1px solid var(--line); }
.cap > * { min-width: 0; }
@media (min-width: 880px) {
  .cap { grid-template-columns: minmax(0, 14rem) minmax(0, 1fr) minmax(0, 17rem); }
}
.cap-title { display: grid; gap: 10px; justify-items: start; align-content: start; }
.cap p { margin: 0; max-width: 38em; }
.status-chip {
  padding: 1px 9px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: var(--step--2);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
.answers { display: grid; gap: 6px; align-content: start; }
.answers .a { font-family: var(--display); font-style: italic; font-size: var(--step-1); line-height: 1.4; color: var(--ink); }

.legend { display: grid; gap: 32px; }
@media (min-width: 640px) { .legend { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1040px) { .legend { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.cat { display: grid; gap: 10px; align-content: start; justify-items: start; padding-top: 18px; border-top: 1px solid var(--line); }
.cat p { margin: 0; font-size: 0.9375rem; }

.rules-label { margin-top: clamp(44px, 6vw, 64px); margin-bottom: 4px; }
.rules { display: grid; gap: 0 48px; margin: 0; padding: 0; list-style: none; }
@media (min-width: 880px) { .rules { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.rules li { padding-block: 14px; border-bottom: 1px solid var(--line); }
.rules strong { color: var(--ink); font-weight: 600; }

/* Stages: a real sequence, so it is numbered */
.stages { display: grid; gap: 0; margin: 0 0 40px; padding: 0; list-style: none; }
@media (min-width: 760px) { .stages { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; } }
.stage {
  display: grid;
  gap: 4px;
  align-content: start;
  justify-items: start;
  padding: 14px 0;
  border-top: 3px solid var(--line);
}
@media (max-width: 759px) {
  .stage { grid-template-columns: 4.5rem minmax(0, 1fr) auto; align-items: baseline; border-top-width: 1px; }
  .stage.is-now { border-top-width: 3px; }
}
.stage.is-now { border-top-color: var(--accent-bright); }
.stage-n { font-family: var(--mono); font-size: var(--step--2); letter-spacing: 0.09em; text-transform: uppercase; color: var(--muted); }
.stage-name { font-weight: 500; color: var(--ink); line-height: 1.35; }
.stage:not(.is-now) .stage-name { color: var(--muted); font-weight: 400; }
.now {
  padding: 0 8px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--on-accent);
  font-family: var(--mono);
  font-size: var(--step--2);
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1.7;
  text-transform: uppercase;
}
.founder { display: grid; gap: 6px; max-width: 40rem; margin: 0; }

/* Contact */
.contact-grid { display: grid; gap: 32px 64px; }
@media (min-width: 980px) { .contact-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; } }
.contact .section-head { margin-bottom: 0; }
.contact-box { display: grid; gap: 10px; justify-items: start; min-width: 0; }
.email {
  font-family: var(--display);
  font-size: clamp(1.6rem, 4.2vw, 2.5rem);
  line-height: 1.15;
  color: var(--ink);
  text-decoration: none;
  overflow-wrap: anywhere;
  user-select: all;
}
.email:hover { color: var(--accent); }
.contact-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 4px; }
.copy-status { min-height: 1.4em; margin: 0; font-size: var(--step--1); color: var(--accent); }
.note { margin: 0; font-size: var(--step--1); color: var(--muted); }

/* Footer */
.site-foot { background: linear-gradient(180deg, var(--band), var(--band-2)); color: var(--band-muted); }
.foot-grid {
  display: grid;
  gap: 24px 48px;
  padding-block: 48px calc(48px + env(safe-area-inset-bottom, 0px));
  position: relative;
  overflow: hidden;
}
@media (min-width: 860px) { .foot-grid { grid-template-columns: minmax(0, 15rem) minmax(0, 38rem) 1fr; align-items: start; } }
.foot-brand { display: flex; align-items: center; gap: 12px; }
.foot-name { font-weight: 600; font-size: 0.8125rem; letter-spacing: 0.3em; color: var(--band-fg); }
.foot-text { display: grid; gap: 8px; font-size: var(--step--1); line-height: 1.55; }
.foot-text p { margin: 0; }
.foot-text p:first-child { color: var(--band-fg); }
.foot-waves { width: 100%; max-width: 220px; height: auto; justify-self: end; opacity: 0.55; }
@media (max-width: 859px) { .foot-waves { display: none; } }