@font-face {
  font-family: "Nunito";
  font-style: normal;
  font-weight: 200 1000;
  font-display: swap;
  src: url("./fonts/Nunito/Nunito-VariableFont_wght.ttf") format("truetype");
}

@font-face {
  font-family: "Nunito";
  font-style: italic;
  font-weight: 200 1000;
  font-display: swap;
  src: url("./fonts/Nunito/Nunito-Italic-VariableFont_wght.ttf")
    format("truetype");
}

:root {
  color-scheme: dark;

  /* Base palette colors. Derived tokens below use CSS relative color syntax. */
  --color-brand: #1a747d;
  --color-danger: #b42318;
  --color-warning: #b7791f;

  --bg: oklch(from var(--color-brand) 13% calc(c * 0.45) h);
  --surface: oklch(from var(--color-brand) 92% calc(c * 0.18) h / 0.07);
  --surface-strong: oklch(from var(--color-brand) 92% calc(c * 0.22) h / 0.12);
  --text: oklch(from var(--color-brand) 96% calc(c * 0.18) h);
  --muted: oklch(from var(--color-brand) 76% calc(c * 0.28) h);
  --accent: oklch(from var(--color-brand) 58% calc(c * 1.1) h);
  --accent-soft: oklch(from var(--color-brand) 58% calc(c * 1.1) h / 0.22);
  --accent-strong: oklch(from var(--color-brand) 70% calc(c * 1.25) h);
  --accent-contrast: oklch(from var(--color-brand) 98% calc(c * 0.08) h);
  --border: oklch(from var(--color-brand) 92% calc(c * 0.22) h / 0.14);
  --border-strong: oklch(from var(--color-brand) 92% calc(c * 0.22) h / 0.35);
  --shadow: 0 24px 80px
    oklch(from var(--color-brand) 8% calc(c * 0.35) h / 0.35);
  --grid-line: oklch(from var(--color-brand) 92% calc(c * 0.15) h / 0.035);

  --danger: oklch(from var(--color-danger) 58% calc(c * 1.05) h);
  --danger-soft: oklch(from var(--color-danger) 58% calc(c * 1.05) h / 0.1);
  --danger-border: oklch(from var(--color-danger) 58% calc(c * 1.05) h / 0.35);

  --warning: oklch(from var(--color-warning) 68% calc(c * 1.05) h);
  --warning-soft: oklch(from var(--color-warning) 68% calc(c * 1.05) h / 0.1);
  --warning-border: oklch(
    from var(--color-warning) 68% calc(c * 1.05) h / 0.35
  );
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family:
    "Nunito",
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(
      circle at top right,
      var(--surface-strong),
      transparent 32rem
    ),
    var(--bg);
}

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

.container {
  width: min(1100px, calc(100% - 40px));
  margin-inline: auto;
}

header {
  .container {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    padding-block: 2.5rem;
  }
  .logo {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: 0.03em;
  }
  .nav {
    display: flex;
    gap: 8px;
    padding: 6px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    backdrop-filter: blur(18px);
  }
  .nav a {
    padding: 8px 14px;
    border-radius: 999px;
    color: var(--muted);
    font-size: 0.92rem;
    transition: 180ms ease;
  }

  .nav a:hover,
  .nav a:focus-visible {
    color: var(--text);
    background: var(--surface-strong);
  }
}

.hero {
  display: grid;
  place-items: start;
  min-height: 58vh;
  padding: 96px 0 72px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 24px;
  font-size: clamp(3rem, 9vw, 6.8rem);
  line-height: 0.9;
  letter-spacing: -0.08em;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1;
  letter-spacing: -0.06em;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.12rem;
  letter-spacing: -0.03em;
}

.hero-text,
.section-heading p,
.split p,
.tool-card p,
.footer p {
  color: var(--muted);
}

.hero-text {
  max-width: 680px;
  margin-bottom: 32px;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.hero-actions,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button,
.contact-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.button:hover,
.button:focus-visible,
.contact-links a:hover,
.contact-links a:focus-visible {
  transform: translateY(-2px);
  border-color: var(--border-strong);
}

.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: var(--accent-contrast);
  box-shadow: 0 18px 45px var(--accent-soft);
}

.secondary,
.contact-links a {
  background: var(--surface);
}

.section {
  padding: 76px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 28px;
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 260px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.tool-card::after {
  position: absolute;
  right: 24px;
  bottom: 24px;
  color: var(--muted);
  content: "→";
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.tool-card:hover,
.tool-card:focus-visible {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: linear-gradient(
    180deg,
    var(--surface-strong),
    var(--accent-soft)
  );
  outline: none;
}

.tool-card:hover::after,
.tool-card:focus-visible::after {
  color: var(--accent-strong);
  transform: translateX(4px);
}

.tool-card p {
  margin-bottom: 24px;
}

.tool-icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 28px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface-strong);
  font-weight: 800;
}

.status {
  align-self: flex-start;
  margin-top: auto;
  padding: 6px 10px;
  border: 1px solid var(--warning-border);
  border-radius: 999px;
  color: var(--warning);
  background: var(--warning-soft);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.status[data-variant="danger"] {
  border-color: var(--danger-border);
  color: var(--danger);
  background: var(--danger-soft);
}

.tool-page {
  min-height: 70vh;
  padding: 72px 0;
}

.back-link {
  display: inline-flex;
  margin-bottom: 36px;
  color: var(--muted);
  font-weight: 700;
  transition:
    color 180ms ease,
    transform 180ms ease;
}

.back-link:hover,
.back-link:focus-visible {
  color: var(--accent-strong);
  transform: translateX(-4px);
}

.tool-panel {
  max-width: 720px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  box-shadow: var(--shadow);
}

.tool-panel p {
  margin: 18px 0 0;
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
  border-top: 1px solid var(--border);
}

.footer {
  .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 36px 0 48px;
    border-top: 1px solid var(--border);
  }
  p {
    margin: 0;
  }
}

@media (max-width: 820px) {
  .site-header,
  .footer,
  .split {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-header,
  .footer {
    gap: 18px;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    min-height: auto;
    padding: 70px 0 52px;
  }

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

  .tool-card {
    min-height: auto;
  }
}

@media (max-width: 520px) {
  .site-header,
  main,
  .footer {
    width: min(100% - 24px, 1120px);
  }

  .nav a {
    padding-inline: 10px;
    font-size: 0.85rem;
  }

  h1 {
    font-size: clamp(2.65rem, 17vw, 4rem);
  }

  .section {
    padding: 56px 0;
  }
}