/*
 * Tradezentient — site styles.
 * Two-tone system: an ultramarine field with white type, and a cool paper with ultramarine ink.
 * There is deliberately no third accent colour; the hero's fan chart is the one loud element.
 */

@font-face {
  font-family: "Big Shoulders Display";
  src: url("/assets/fonts/big-shoulders-display-latin-wght.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Newsreader";
  src: url("/assets/fonts/newsreader-latin-opsz.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --ultra: #1a2fd6;
  --ultra-press: #1424b3;
  --ultra-deep: #0f1b86;
  --paper: #f1f3fa;
  --paper-rule: #d1d8f0;
  --ink: #121741;
  --ink-soft: #4a5283;
  --field-line: #b6bfe6;
  --on-ultra: #ffffff;
  --on-ultra-soft: rgba(255, 255, 255, 0.8);
  --on-ultra-faint: rgba(255, 255, 255, 0.62);
  --on-ultra-rule: rgba(255, 255, 255, 0.24);
  --error: #b3123d;

  --font-display: "Big Shoulders Display", "Arial Narrow", "Roboto Condensed", sans-serif;
  --font-text: "Newsreader", "Iowan Old Style", "Palatino Linotype", Georgia, serif;

  --gutter: clamp(16px, 4.2vw, 64px);
  --max: 1360px;
  --section-space: clamp(80px, 11vw, 168px);

  color-scheme: light;
}

/* ---------- base ---------- */

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

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: 1.1875rem;
  line-height: 1.6;
  font-kerning: normal;
  text-rendering: optimizeLegibility;
}

img,
svg,
canvas {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
}

h1,
h2,
h3,
p,
ul,
ol,
dl,
dd,
figure {
  margin: 0;
}

::selection {
  background: var(--ultra);
  color: #fff;
}

:focus-visible {
  outline: 3px solid var(--ultra);
  outline-offset: 3px;
}

.on-ultra {
  background: var(--ultra);
  color: var(--on-ultra);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.on-ultra ::selection {
  background: #fff;
  color: var(--ultra);
}

.on-ultra :focus-visible {
  outline-color: #fff;
}

.skip-link {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  background: #fff;
  color: var(--ultra);
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  text-decoration: none;
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: none;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- type ---------- */

.display {
  font-family: var(--font-display);
  font-weight: 300;
  letter-spacing: -0.005em;
  line-height: 0.88;
  font-feature-settings: "kern" 1;
  text-wrap: balance;
}

.h2 {
  font-size: clamp(3.25rem, 7.4vw, 7.25rem);
}

.h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 2.125rem;
  line-height: 1;
  letter-spacing: 0.005em;
}

.lead {
  font-size: clamp(1.25rem, 1.15rem + 0.55vw, 1.5625rem);
  line-height: 1.45;
}

.prose p + p {
  margin-top: 1em;
}

.measure {
  max-width: 34em;
}

/* ---------- buttons ---------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 0 28px;
  border: 0;
  border-radius: 0;
  font-family: var(--font-display);
  font-size: 1.3125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.button:hover {
  text-decoration: none;
}

.button--light {
  background: #fff;
  color: var(--ultra);
}

.button--light:hover {
  background: #dde3ff;
}

.button--ultra {
  background: var(--ultra);
  color: #fff;
}

.button--ultra:hover {
  background: var(--ultra-press);
}

.button[disabled] {
  cursor: progress;
  opacity: 0.72;
}

/* ---------- header ---------- */

.site-header {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 20;
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 22px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1;
  text-decoration: none;
}

.wordmark svg {
  width: 30px;
  height: 30px;
  flex: none;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.6vw, 40px);
  font-family: var(--font-display);
  font-size: 1.3125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.site-nav a {
  text-decoration: none;
  padding-block: 6px;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.3em;
}

.site-header--on-ultra {
  color: #fff;
}

.site-header--on-paper {
  color: var(--ultra);
}

@media (max-width: 640px) {
  .site-nav .nav-optional {
    display: none;
  }
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  display: grid;
  align-content: end;
  min-height: max(660px, 100vh);
  min-height: max(660px, 100svh);
  overflow: hidden;
  touch-action: pan-y;
}

.fan {
  position: absolute;
  inset: 0;
}

.fan canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.fan-overlay {
  opacity: 0;
  transition: opacity 0.6s ease;
}

.fan.is-ready .fan-overlay {
  opacity: 1;
}

.fan-now {
  position: absolute;
  width: 12px;
  height: 12px;
  margin: -6px 0 0 -6px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 0 4px rgba(26, 47, 214, 1), 0 0 0 5px rgba(255, 255, 255, 0.55);
}

.fan-now::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.9);
  animation: now-pulse 2.8s ease-out infinite;
}

@keyframes now-pulse {
  0% {
    transform: scale(0.6);
    opacity: 0.9;
  }
  70%,
  100% {
    transform: scale(2.4);
    opacity: 0;
  }
}

@media (max-width: 719px) {
  .fan-now::after {
    inset: -4px;
  }
}

.fan-tag {
  position: absolute;
  font-size: 1rem;
  line-height: 1.2;
  color: var(--on-ultra-faint);
  white-space: nowrap;
  transform: translate(-50%, 0);
  opacity: 0;
  transition: opacity 0.6s ease;
}

.fan.is-ready .fan-tag {
  opacity: 1;
}

.fan-probe {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  column-gap: 16px;
  row-gap: 2px;
  font-size: 0.9375rem;
  line-height: 1.35;
  color: var(--on-ultra-soft);
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.fan-probe > span {
  white-space: nowrap;
}

@media (max-width: 719px) {
  .fan-probe {
    flex-direction: column;
  }
}

.fan.is-ready .fan-probe {
  opacity: 1;
}

.fan-probe-when {
  font-family: var(--font-display);
  font-size: 1.3125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: #fff;
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-bottom: clamp(44px, 8vh, 104px);
}

.hero-title {
  font-size: clamp(4.75rem, 11.2vw, 11.5rem);
  line-height: 0.84;
  margin-left: -0.04em;
}

.hero-lead {
  max-width: 31em;
  margin-top: clamp(20px, 2.6vw, 34px);
  color: var(--on-ultra-soft);
}

.hero-actions {
  margin-top: clamp(26px, 3.2vw, 40px);
}

/* ---------- principal-only ---------- */

.principal {
  padding-block: var(--section-space);
}

.principal-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(20px, 3vw, 48px);
  row-gap: 48px;
}

.principal-title {
  grid-column: 1 / span 6;
  color: var(--ultra);
}

.principal-body {
  grid-column: 8 / span 5;
  align-self: end;
}

.principal-body .lead {
  color: var(--ink);
}

.negatives {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  display: grid;
  gap: 26px;
}

.negatives li {
  display: grid;
  gap: 4px;
  padding-left: 22px;
  border-left: 2px solid var(--ultra);
}

.negatives strong {
  font-family: var(--font-display);
  font-size: 1.625rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  line-height: 1.1;
  color: var(--ultra);
}

.negatives span {
  color: var(--ink-soft);
}

@media (max-width: 960px) {
  .principal-title,
  .principal-body {
    grid-column: 1 / -1;
  }
}

/* ---------- approach ---------- */

.approach {
  padding-bottom: var(--section-space);
}

.approach-head {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(20px, 3vw, 48px);
  row-gap: 24px;
  align-items: end;
  padding-top: clamp(56px, 7vw, 96px);
  border-top: 1px solid var(--paper-rule);
}

.approach-head .h2 {
  grid-column: 1 / span 7;
  color: var(--ultra);
}

.approach-head p {
  grid-column: 8 / span 5;
  color: var(--ink-soft);
}

.steps {
  list-style: none;
  padding: 0;
  margin-top: clamp(48px, 6vw, 88px);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(28px, 3vw, 48px);
  counter-reset: step;
}

.step {
  display: grid;
  align-content: start;
  gap: 14px;
}

.step-figure {
  aspect-ratio: 2 / 1;
  margin-bottom: 14px;
  border-bottom: 1px solid var(--paper-rule);
}

.step-figure img {
  width: 100%;
  height: 100%;
}

.step-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  color: var(--ultra);
}

.step-title::before {
  counter-increment: step;
  content: counter(step);
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--ink-soft);
  min-width: 0.7em;
}

.step p {
  font-size: 1.0625rem;
  color: var(--ink-soft);
}

@media (max-width: 1080px) {
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    row-gap: 56px;
  }
}

@media (max-width: 960px) {
  .approach-head .h2,
  .approach-head p {
    grid-column: 1 / -1;
  }
}

@media (max-width: 560px) {
  .steps {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 48px;
  }
}

/* ---------- markets ---------- */

.markets {
  padding-block: var(--section-space);
}

.markets-head {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(20px, 3vw, 48px);
  row-gap: 24px;
  align-items: end;
}

.markets-head .h2 {
  grid-column: 1 / span 7;
}

.markets-head p {
  grid-column: 8 / span 5;
  color: var(--on-ultra-soft);
}

.market-list {
  list-style: none;
  padding: 0;
  margin-top: clamp(48px, 6vw, 88px);
  border-top: 1px solid var(--on-ultra-rule);
}

.market {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(20px, 3vw, 48px);
  row-gap: 8px;
  align-items: baseline;
  padding-block: clamp(22px, 2.6vw, 34px);
  border-bottom: 1px solid var(--on-ultra-rule);
}

.market-name {
  grid-column: 1 / span 7;
  font-size: clamp(2.5rem, 5.4vw, 5rem);
  line-height: 0.95;
}

.market-desc {
  grid-column: 8 / span 5;
  color: var(--on-ultra-soft);
}

@media (max-width: 960px) {
  .markets-head .h2,
  .markets-head p,
  .market-name,
  .market-desc {
    grid-column: 1 / -1;
  }
}

/* ---------- contact band ---------- */

.contact-band {
  padding-block: var(--section-space);
}

.contact-band-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(20px, 3vw, 48px);
  row-gap: 32px;
  align-items: end;
}

.contact-band .h2 {
  grid-column: 1 / span 8;
  color: var(--ultra);
}

.contact-band-body {
  grid-column: 9 / span 4;
  display: grid;
  gap: 26px;
  justify-items: start;
}

.contact-band-body p {
  color: var(--ink-soft);
}

.fine {
  font-size: 0.9375rem;
  line-height: 1.5;
}

@media (max-width: 960px) {
  .contact-band .h2,
  .contact-band-body {
    grid-column: 1 / -1;
  }
}

/* ---------- footer ---------- */

.site-footer {
  background: var(--ultra-deep);
  color: var(--on-ultra-soft);
  padding-block: clamp(56px, 7vw, 88px) 40px;
  font-size: 0.9375rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.site-footer :focus-visible {
  outline-color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(20px, 3vw, 48px);
  row-gap: 32px;
}

.footer-brand {
  grid-column: 1 / span 4;
  color: #fff;
}

.footer-legal {
  grid-column: 5 / span 6;
  max-width: 46em;
}

.footer-links {
  grid-column: 11 / span 2;
  list-style: none;
  padding: 0;
  display: grid;
  gap: 8px;
  align-content: start;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.footer-links a {
  color: #fff;
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-copy {
  grid-column: 1 / -1;
  padding-top: 28px;
  border-top: 1px solid var(--on-ultra-rule);
  color: var(--on-ultra-faint);
}

@media (max-width: 960px) {
  .footer-brand,
  .footer-legal,
  .footer-links {
    grid-column: 1 / -1;
  }

  .footer-links {
    grid-auto-flow: column;
    justify-content: start;
    gap: 28px;
  }
}

/* ---------- inner pages (contact, privacy, errors) ---------- */

.split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  min-height: 100vh;
  min-height: 100svh;
}

.split-aside {
  position: relative;
  padding: clamp(120px, 14vh, 168px) var(--gutter) clamp(48px, 6vw, 80px);
  overflow: hidden;
}

.split-aside-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  max-width: 30em;
}

.split-main {
  padding: clamp(120px, 14vh, 168px) var(--gutter) clamp(64px, 8vw, 112px);
}

.split-main-inner {
  max-width: 44rem;
}

.page-title {
  font-size: clamp(4rem, 8vw, 8.5rem);
}

.topics {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  line-height: 1.25;
}

.aside-note {
  padding-top: 22px;
  border-top: 1px solid var(--on-ultra-rule);
  color: var(--on-ultra-faint);
}

.aside-glyph {
  position: absolute;
  right: -8%;
  bottom: -4%;
  width: 92%;
  opacity: 0.2;
  pointer-events: none;
}

/* the split header: wordmark sits on the ultramarine aside, nav on the paper */
.site-header--split {
  color: #fff;
}

/* full-bleed so the wordmark lines up with the aside's text, not the centred page grid */
.site-header--split .wrap {
  max-width: none;
}

.site-header--split .site-nav {
  color: var(--ultra);
}

@media (max-width: 900px) {
  .split {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
  }

  .split-aside {
    padding-bottom: 56px;
  }

  .split-main {
    padding-top: 56px;
  }

  .site-header--split .site-nav {
    color: #fff;
  }

  .aside-glyph {
    width: 70%;
    right: -12%;
    bottom: -10%;
  }
}

/* ---------- contact form ---------- */

.form-intro {
  color: var(--ink-soft);
  margin-bottom: 36px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 20px;
}

.field {
  display: grid;
  gap: 8px;
  align-content: start;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 1rem;
  font-weight: 560;
  line-height: 1.3;
  color: var(--ink);
}

.field input,
.field textarea {
  width: 100%;
  min-height: 54px;
  padding: 13px 15px;
  border: 1.5px solid var(--field-line);
  border-radius: 0;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 1.0625rem;
  line-height: 1.45;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  -webkit-appearance: none;
  appearance: none;
}

.field textarea {
  min-height: 200px;
  resize: vertical;
}

.field input:hover,
.field textarea:hover {
  border-color: #8e9be0;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ultra);
  box-shadow: 0 0 0 3px rgba(26, 47, 214, 0.2);
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: var(--error);
}

.field input[aria-invalid="true"]:focus,
.field textarea[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(179, 18, 61, 0.18);
}

.field-error {
  color: var(--error);
  font-size: 0.9375rem;
  line-height: 1.4;
}

.field-error:empty {
  display: none;
}

.field-hint {
  color: var(--ink-soft);
  font-size: 0.9375rem;
  line-height: 1.4;
}

.hp-field {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 28px;
  margin-top: 32px;
}

.form-footer .fine {
  color: var(--ink-soft);
  max-width: 26em;
}

.form-status {
  margin-top: 20px;
  font-size: 1rem;
  line-height: 1.45;
}

.form-status:empty {
  display: none;
}

.form-status.is-error {
  color: var(--error);
}

.sent-panel {
  display: grid;
  gap: 20px;
  justify-items: start;
  padding: 36px;
  background: #fff;
  border-left: 3px solid var(--ultra);
}

.sent-panel[hidden] {
  display: none;
}

.sent-panel h2 {
  color: var(--ultra);
  font-size: clamp(3rem, 6vw, 4.5rem);
}

.sent-panel h2:focus {
  outline: none;
}

.button--quiet {
  min-height: 48px;
  padding: 0 22px;
  background: transparent;
  color: var(--ultra);
  box-shadow: inset 0 0 0 1.5px var(--ultra);
  font-size: 1.1875rem;
}

.button--quiet:hover {
  background: #e3e8fb;
}

@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ---------- long-form (privacy) ---------- */

.doc {
  padding-block: clamp(132px, 16vh, 176px) var(--section-space);
}

.doc-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  column-gap: clamp(20px, 3vw, 48px);
  row-gap: 40px;
}

.doc-head {
  grid-column: 1 / span 5;
  color: var(--ultra);
}

.doc-head p {
  margin-top: 20px;
  color: var(--ink-soft);
  font-size: 1rem;
}

.doc-body {
  grid-column: 6 / span 7;
  max-width: 38em;
}

.doc-body h2 {
  margin-top: 44px;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: 0.01em;
  color: var(--ultra);
}

.doc-body h2:first-child {
  margin-top: 0;
}

.doc-body p + p,
.doc-body p + ul,
.doc-body ul + p {
  margin-top: 0.8em;
}

.doc-body ul {
  padding-left: 1.2em;
}

.doc-body li + li {
  margin-top: 0.35em;
}

@media (max-width: 960px) {
  .doc-head,
  .doc-body {
    grid-column: 1 / -1;
  }
}

/* ---------- error pages ---------- */

.error-page {
  position: relative;
  display: grid;
  align-content: center;
  min-height: 100vh;
  min-height: 100svh;
  padding-block: 140px 80px;
  overflow: hidden;
}

.error-page .wrap {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  justify-items: start;
}

.error-page .page-title {
  max-width: 9em;
}

.error-page p {
  max-width: 32em;
  color: var(--on-ultra-soft);
}

.error-glyph {
  position: absolute;
  left: 63%;
  top: 50%;
  width: min(70vw, 900px);
  transform: translateY(-50%);
  opacity: 0.22;
  pointer-events: none;
}

/* ---------- motion preferences ---------- */

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}