:root {
  --paper: #f1eee6;
  --paper-deep: #e9e4da;
  --ink: #121210;
  --muted: #716f68;
  --line: #c5c0b6;
  --accent: #d54b38;
  --white: #faf8f2;
  --sans: "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  color: inherit;
  font: inherit;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 12px;
  left: 12px;
  padding: 8px 12px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
.site-footer,
main {
  width: min(1440px, calc(100% - 64px));
  margin-inline: auto;
}

.site-header {
  min-height: 92px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--ink);
}

.wordmark {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .12em;
}

.wordmark-sub,
.header-nav,
.eyebrow,
.hero-index,
.tool-meta,
.tool-number,
.site-footer {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.wordmark-sub {
  color: var(--accent);
}

.header-nav a {
  padding-block: 8px;
  border-bottom: 1px solid transparent;
}

.header-nav a:hover,
.header-nav a:focus-visible {
  border-color: currentColor;
}

.hero {
  min-height: 610px;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, .6fr);
  grid-template-rows: auto 1fr;
  gap: 0 9vw;
  padding: 30px 0 76px;
  align-items: end;
}

.hero-index {
  grid-column: 1 / -1;
  align-self: start;
  color: var(--muted);
}

.hero h1 {
  margin: 0;
  max-width: 900px;
  font-size: clamp(58px, 8.2vw, 128px);
  font-weight: 500;
  line-height: .98;
  letter-spacing: -.075em;
}

.hero-note {
  max-width: 430px;
  padding-bottom: 8px;
  font-size: 15px;
}

.hero-note > p:first-child {
  margin: 0 0 30px;
}

.local-note {
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 9px;
  border-radius: 50%;
  background: var(--accent);
}

.tools-section {
  border-top: 1px solid var(--ink);
  padding: 34px 0 120px;
}

.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 48px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--muted);
}

.section-heading h2,
.principles h2 {
  margin: 0;
  font-size: clamp(36px, 4.2vw, 66px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -.05em;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.filter {
  appearance: none;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 100px;
  background: transparent;
  cursor: pointer;
  font-size: 12px;
}

.filter:hover,
.filter:focus-visible,
.filter.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--paper);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.tool-card {
  min-height: 350px;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  position: relative;
  padding: 28px;
  overflow: hidden;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: color .2s ease, background-color .2s ease;
}

.tool-card[hidden] {
  display: none;
}

.tool-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: translateY(101%);
  transition: transform .28s cubic-bezier(.2, .7, .2, 1);
  z-index: -1;
}

.tool-card:hover,
.tool-card:focus-visible {
  color: var(--paper);
  outline: 0;
}

.tool-card:hover::after,
.tool-card:focus-visible::after {
  transform: translateY(0);
}

.tool-card--feature {
  background: var(--paper-deep);
}

.tool-card--external .tool-meta::after {
  content: " / ↗";
}

.tool-number {
  position: absolute;
  top: 27px;
  right: 28px;
  color: var(--muted);
}

.tool-meta {
  min-height: 60px;
  padding-right: 44px;
  color: var(--muted);
}

.tool-card strong {
  align-self: start;
  margin-bottom: 22px;
  font-size: clamp(27px, 2.4vw, 39px);
  font-weight: 500;
  line-height: 1.08;
  letter-spacing: -.04em;
}

.tool-description {
  max-width: 33em;
  align-self: end;
  margin-bottom: 35px;
  color: var(--muted);
  font-size: 14px;
}

.tool-open {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid currentColor;
  padding-top: 13px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.tool-card:hover .tool-meta,
.tool-card:hover .tool-description,
.tool-card:focus-visible .tool-meta,
.tool-card:focus-visible .tool-description {
  color: #b9b5ad;
}

.no-results {
  padding: 42px 0;
  color: var(--muted);
}

.principles {
  border-top: 1px solid var(--ink);
  padding: 34px 0 130px;
}

.principles-grid {
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  align-items: end;
  gap: 9vw;
  margin-top: 70px;
}

.principle-copy {
  max-width: 480px;
  font-size: 15px;
}

.principle-copy p {
  margin: 0;
}

.principle-copy p + p {
  margin-top: 24px;
}

.site-footer {
  min-height: 110px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--ink);
  color: var(--muted);
}

.site-footer a {
  color: var(--ink);
}

@media (max-width: 980px) {
  .hero {
    min-height: 560px;
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .hero-index {
    grid-column: auto;
  }

  .hero-note {
    margin-left: 33%;
  }

  .tool-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .principles-grid {
    grid-template-columns: 1fr;
  }

  .principle-copy {
    margin-left: 33%;
  }
}

@media (max-width: 680px) {
  .site-header,
  .site-footer,
  main {
    width: min(100% - 32px, 1440px);
  }

  .site-header {
    min-height: 74px;
  }

  .hero {
    min-height: auto;
    padding: 24px 0 64px;
    gap: 64px;
  }

  .hero h1 {
    font-size: clamp(45px, 15vw, 76px);
    line-height: 1.02;
  }

  .hero-note,
  .principle-copy {
    margin-left: 0;
  }

  .tools-section {
    padding-bottom: 88px;
  }

  .section-heading {
    display: block;
    margin-bottom: 32px;
  }

  .filters {
    justify-content: flex-start;
    margin-top: 28px;
  }

  .tool-grid {
    grid-template-columns: 1fr;
  }

  .tool-card {
    min-height: 310px;
    padding: 24px;
  }

  .tool-number {
    top: 24px;
    right: 24px;
  }

  .principles {
    padding-bottom: 90px;
  }

  .principles-grid {
    margin-top: 48px;
  }

  .site-footer {
    min-height: 130px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
  }
}

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

  .tool-card::after {
    transition: none;
  }
}