:root {
  --ink: #17211f;
  --muted: #59615f;
  --paper: #f7fbfa;
  --white: #ffffff;
  --line: #d8e2de;
  --teal: #087f7b;
  --deep-teal: #12312f;
  --sea: #0f5f61;
  --coral: #e65f4f;
  --gold: #efb84a;
  --leaf: #347b48;
  --violet: #6f56c9;
  --shadow: 0 22px 60px rgba(18, 49, 47, 0.14);
  --radius: 8px;
  font-family: "Atkinson Hyperlegible", "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  background: var(--gold);
  color: var(--ink);
  padding: 0.7rem 1rem;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem clamp(1rem, 4vw, 3rem);
  background: rgba(247, 251, 250, 0.93);
  border-bottom: 1px solid rgba(216, 226, 222, 0.9);
  backdrop-filter: blur(16px);
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
  font-weight: 800;
  line-height: 1.05;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.6rem;
  height: 2.6rem;
  place-items: center;
  border-radius: var(--radius);
  background: var(--deep-teal);
  color: var(--gold);
  font-size: 0.92rem;
  letter-spacing: 0;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.2rem;
}

.site-nav a {
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 0.93rem;
  font-weight: 700;
  padding: 0.55rem 0.72rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  background: var(--deep-teal);
  color: var(--white);
}

.menu-toggle {
  display: none;
  flex: 0 0 2.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  min-height: 2.75rem;
  min-width: 2.75rem;
}

.menu-toggle::before {
  content: "";
  display: block;
  width: 1.25rem;
  height: 0.8rem;
  margin: auto;
  border-top: 3px solid currentColor;
  border-bottom: 3px solid currentColor;
  box-shadow: 0 5px 0 currentColor;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.hero {
  position: relative;
  min-height: clamp(520px, 76svh, 760px);
  overflow: hidden;
  isolation: isolate;
}

.hero img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(18, 49, 47, 0.92) 0%, rgba(18, 49, 47, 0.72) 44%, rgba(18, 49, 47, 0.1) 100%),
    linear-gradient(0deg, rgba(18, 49, 47, 0.44), rgba(18, 49, 47, 0.04));
}

.hero-content {
  display: grid;
  align-content: center;
  width: min(100%, 760px);
  min-height: inherit;
  max-width: 760px;
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 7vw, 6rem);
  color: var(--white);
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--gold);
  font-size: 0.88rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.08;
}

h1 {
  margin: 0;
  max-width: 12ch;
  font-size: clamp(2.75rem, 9vw, 6.4rem);
  letter-spacing: 0;
  overflow-wrap: normal;
}

.hero p:not(.eyebrow) {
  max-width: 58ch;
  margin: 1.15rem 0 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1.05rem, 2vw, 1.34rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.45rem;
}

.button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  border-radius: var(--radius);
  font-weight: 850;
  text-decoration: none;
}

.button {
  border: 0;
  background: var(--gold);
  color: var(--ink);
  padding: 0.72rem 1rem;
  cursor: pointer;
  font: inherit;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.16);
  color: var(--white);
  outline: 1px solid rgba(255, 255, 255, 0.45);
}

.button.ghost {
  border: 1px solid rgba(8, 127, 123, 0.38);
  background: var(--white);
  color: var(--deep-teal);
}

.button.danger {
  background: #fff0ed;
  color: #8a281e;
}

.text-link {
  color: var(--teal);
}

.link-stack {
  display: grid;
  gap: 0.35rem;
  justify-items: start;
}

.section {
  padding: clamp(3rem, 7vw, 6rem) clamp(1rem, 5vw, 4rem);
}

.section.white {
  background: var(--white);
}

.section.deep {
  background: linear-gradient(135deg, #12312f 0%, #174943 58%, #0f5f61 100%);
  color: var(--white);
}

.section.deep .lead,
.section.deep .mini,
.section.deep .muted {
  color: rgba(255, 255, 255, 0.78);
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
}

.narrow {
  max-width: 820px;
}

.section h2 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 5vw, 4rem);
  letter-spacing: 0;
}

.section h3 {
  margin: 0 0 0.65rem;
  font-size: clamp(1.25rem, 3vw, 1.85rem);
}

.lead {
  max-width: 70ch;
  color: var(--muted);
  font-size: clamp(1.08rem, 2vw, 1.28rem);
}

.grid {
  display: grid;
  gap: 1rem;
}

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

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  padding: clamp(1.1rem, 2vw, 1.5rem);
  box-shadow: 0 12px 34px rgba(18, 49, 47, 0.06);
}

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

.path-card {
  display: grid;
  align-content: start;
  gap: 0.35rem;
  min-height: 100%;
}

.path-card:hover,
.path-card:focus-visible {
  border-color: rgba(8, 127, 123, 0.6);
  box-shadow: 0 18px 46px rgba(18, 49, 47, 0.12);
  outline: 0;
}

.deep .card {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.card p,
.plain-list li,
.source-list li {
  color: var(--muted);
}

.deep .card p {
  color: rgba(255, 255, 255, 0.78);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}

.tag {
  border: 1px solid rgba(8, 127, 123, 0.28);
  border-radius: var(--radius);
  background: rgba(8, 127, 123, 0.08);
  color: var(--deep-teal);
  font-size: 0.88rem;
  font-weight: 800;
  padding: 0.28rem 0.5rem;
}

.section.deep .tag {
  border-color: rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
}

.section.deep .tag:nth-child(2) {
  border-color: rgba(239, 184, 74, 0.7);
  color: #ffe39c;
}

.section.deep .tag:nth-child(3) {
  border-color: rgba(106, 205, 190, 0.75);
  color: #bcfff3;
}

.section.deep .tag:nth-child(4) {
  border-color: rgba(246, 141, 119, 0.75);
  color: #ffd2c9;
}

.story-strip {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(1.3rem, 4vw, 3rem);
  align-items: center;
}

.story-image {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.spectrum {
  display: grid;
  gap: 0.8rem;
}

.spectrum-item {
  display: grid;
  grid-template-columns: minmax(8rem, 0.32fr) 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1rem;
  border-left: 6px solid var(--teal);
  border-radius: var(--radius);
  background: var(--white);
}

.spectrum-item:nth-child(2n) {
  border-color: var(--coral);
}

.spectrum-item:nth-child(3n) {
  border-color: var(--leaf);
}

.spectrum-item strong {
  font-size: 1rem;
}

.spectrum-item p {
  margin: 0;
  color: var(--muted);
}

.callout {
  border-left: 8px solid var(--gold);
  border-radius: var(--radius);
  background: #fff7df;
  padding: clamp(1rem, 2vw, 1.35rem);
}

.callout.coral {
  border-color: var(--coral);
  background: #fff0ed;
}

.callout.teal {
  border-color: var(--teal);
  background: #e9f7f5;
}

.builder-panels {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.4rem);
  margin-top: 1.5rem;
}

.builder-panel {
  scroll-margin-top: 6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfefe;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.builder-heading {
  padding: clamp(1.2rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(135deg, #ffffff 0%, #edf8f6 100%);
}

.builder-heading h3 {
  margin-bottom: 0.45rem;
}

.builder-heading p:last-child {
  max-width: 76ch;
  margin-bottom: 0;
  color: var(--muted);
}

.builder-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(20rem, 0.95fr);
  gap: 1rem;
  align-items: stretch;
  padding: clamp(1rem, 3vw, 1.4rem);
}

.builder-form {
  display: grid;
  gap: 0.9rem;
}

.builder-form label,
.output-panel label {
  display: grid;
  gap: 0.35rem;
  color: var(--deep-teal);
  font-weight: 850;
}

.builder-form input,
.builder-form textarea,
.markdown-output {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  font: inherit;
  line-height: 1.45;
  padding: 0.7rem 0.75rem;
}

.builder-form textarea {
  resize: vertical;
}

.form-grid {
  display: grid;
  gap: 0.9rem;
}

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

.builder-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 0.2rem;
}

.status-line {
  min-height: 1.4rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.output-panel {
  display: grid;
  min-height: 100%;
}

.markdown-output {
  min-height: 34rem;
  resize: vertical;
  background: #101b1a;
  color: #f4fbf8;
  font-family: Consolas, "Liberation Mono", monospace;
  font-size: 0.88rem;
  white-space: pre;
}

.plain-list,
.source-list {
  padding-left: 1.2rem;
}

.plain-list li,
.source-list li {
  margin: 0.48rem 0;
}

.source-list a {
  color: var(--teal);
  font-weight: 800;
}

.route-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.8rem;
  border-top: 1px solid var(--line);
}

.route-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 3rem;
  border-radius: var(--radius);
  color: var(--teal);
  font-weight: 850;
  text-decoration: none;
}

.site-footer {
  padding: 2.4rem clamp(1rem, 5vw, 4rem);
  background: #111a19;
  color: rgba(255, 255, 255, 0.82);
}

.site-footer .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1rem;
  align-items: start;
}

.site-footer a {
  color: var(--gold);
  font-weight: 800;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: flex-end;
}

.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 40;
  display: grid;
  width: 3.6rem;
  height: 3.6rem;
  place-items: center;
  border: 0;
  border-radius: var(--radius);
  background: var(--coral);
  color: var(--white);
  box-shadow: var(--shadow);
  cursor: pointer;
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
  opacity: 0;
  pointer-events: none;
  transform: translateY(0.5rem);
  transition: opacity 160ms ease, transform 160ms ease;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mini {
  color: var(--muted);
  font-size: 0.94rem;
}

.mt-1 {
  margin-top: 1rem;
}

@media (max-width: 960px) {
  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 1rem;
    right: 1rem;
    top: calc(100% + 0.5rem);
    display: none;
    padding: 0.65rem;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav a {
    width: 100%;
  }

  .grid.two,
  .grid.three,
  .grid.four,
  .story-strip,
  .builder-layout,
  .form-grid.two {
    grid-template-columns: 1fr;
  }

  .hero::after {
    background:
      linear-gradient(0deg, rgba(18, 49, 47, 0.9) 0%, rgba(18, 49, 47, 0.62) 62%, rgba(18, 49, 47, 0.1) 100%);
  }

  .hero-content {
    align-content: end;
  }

  .markdown-output {
    min-height: 24rem;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding: 0.7rem 0.85rem;
  }

  .brand {
    font-size: 0.92rem;
  }

  .brand-mark {
    width: 2.3rem;
    height: 2.3rem;
  }

  .site-nav.is-open {
    grid-template-columns: 1fr;
  }

  h1 {
    max-width: 8.4ch;
    font-size: clamp(2.5rem, 12vw, 3.35rem);
  }

  .hero {
    min-height: 78svh;
  }

  .hero-content {
    padding: 2.4rem 1.25rem 3rem;
  }

  .hero p:not(.eyebrow) {
    font-size: 1rem;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: min(100%, 20rem);
  }

  .button {
    width: 100%;
  }

  .eyebrow {
    font-size: 0.78rem;
    letter-spacing: 0.04em;
  }

  .spectrum-item {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .footer-links,
  .site-footer .wrap {
    display: grid;
    justify-content: start;
    grid-template-columns: 1fr;
  }

  .section,
  .site-footer {
    padding-right: max(1rem, env(safe-area-inset-right));
    padding-bottom: calc(clamp(3rem, 7vw, 6rem) + 4.4rem);
  }

  .builder-actions {
    display: grid;
  }

  .builder-actions .button {
    width: 100%;
  }

  .back-to-top {
    right: 0.35rem;
    bottom: 0.35rem;
    width: 3rem;
    height: 3.2rem;
    border: 2px solid rgba(255, 255, 255, 0.7);
    font-size: 2.05rem;
  }
}