:root {
  --cream: #f3eddf;
  --paper: #fbf7ed;
  --forest: #153d2d;
  --forest-deep: #0d2c20;
  --sage: #bdcbb7;
  --line: #cfc8b8;
  --muted: #5e685e;
  --radius: 1.4rem;
  --serif: Georgia, "Times New Roman", serif;
  --sans: Arial, Helvetica, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cream);
  color: var(--forest-deep);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
}

a { color: inherit; }

.site-header,
main {
  width: min(100% - 2rem, 68rem);
  margin-inline: auto;
}

.site-header {
  display: flex;
  min-height: 4.5rem;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  gap: .65rem;
  align-items: center;
  color: var(--forest);
  font-weight: 700;
  letter-spacing: -.02em;
  text-decoration: none;
}

.brand-mark { width: 1.8rem; height: 1.8rem; fill: var(--forest); }
.brand-stem { fill: none; stroke: var(--cream); stroke-linecap: round; stroke-width: 3; }

main { padding: clamp(2.5rem, 6vw, 5rem) 0; }

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

h1 {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
  font: 400 clamp(2.8rem, 7vw, 5.2rem)/.95 var(--serif);
  letter-spacing: -.05em;
}

.app-card {
  overflow: hidden;
  border: 1px solid var(--forest);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: 0 1rem 2.5rem rgba(13, 44, 32, .07);
}

.app-summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: clamp(1rem, 3vw, 2rem);
  padding: clamp(1.35rem, 4vw, 2.5rem);
  align-items: center;
}

.app-icon {
  display: grid;
  width: clamp(4.5rem, 9vw, 6rem);
  aspect-ratio: 1;
  place-items: center;
  border-radius: 1.2rem;
  background: var(--forest);
}

.app-icon svg { width: 78%; fill: none; stroke: var(--sage); stroke-linecap: round; stroke-width: 3; }
.app-icon .needle, .app-icon .hub { fill: #f2cf88; stroke: #f2cf88; }
.app-name p { margin-bottom: .1rem; color: var(--muted); font-size: .85rem; }
.app-name h2 { margin: 0; font: 400 clamp(2.5rem, 5vw, 4rem)/1 var(--serif); letter-spacing: -.04em; }

.app-meta { display: flex; margin: 0; gap: clamp(1rem, 3vw, 2.2rem); }
.app-meta div { min-width: 5.3rem; }
.app-meta dt { color: var(--muted); font-size: .67rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.app-meta dd { margin: .1rem 0 0; font-size: .86rem; font-weight: 700; }

.app-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: .8rem 2rem;
  padding: 0 clamp(1.35rem, 4vw, 2.5rem) clamp(1.5rem, 4vw, 2.5rem);
  align-items: end;
}

.purpose { margin-bottom: 0; font: 700 1.12rem/1.4 var(--serif); }
.permission-note { max-width: 48rem; margin-bottom: 0; color: var(--muted); font-size: .9rem; }

.download-button {
  display: inline-flex;
  min-height: 3.4rem;
  grid-column: 2;
  grid-row: 1 / span 2;
  padding: .75rem 1.15rem .75rem 1.4rem;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  border: 2px solid var(--forest);
  border-radius: 999px;
  background: var(--forest);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  transition: background-color .2s, color .2s;
}

.download-button svg { width: 1.3rem; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 2; }
.download-button:hover { background: transparent; color: var(--forest); }

.technical-details { border-top: 1px solid var(--line); }
.technical-details summary { padding: 1.1rem clamp(1.35rem, 4vw, 2.5rem); cursor: pointer; font-weight: 700; list-style-position: inside; }
.technical-details[open] summary { border-bottom: 1px solid var(--line); }
.details-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); padding: clamp(1.35rem, 4vw, 2.5rem); }
.details-grid h3 { margin-bottom: 1rem; font: 700 1.2rem/1.2 var(--serif); }
.permission-list { margin: 0; padding: 0; list-style: none; }
.permission-list li,
.verification-list div { padding: .55rem 0; border-top: 1px solid var(--line); }
.permission-list code,
.verification-list code { overflow-wrap: anywhere; font-size: .74rem; }
.verification-list { margin: 0; }
.verification-list dt { color: var(--muted); font-size: .67rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.verification-list dd { margin: .12rem 0 0; font-size: .88rem; }
.fine-print { margin: .8rem 0 0; color: var(--muted); font-size: .8rem; }

.site-notes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: clamp(1.5rem, 4vw, 2.5rem);
  border-top: 1px solid var(--line);
}

.site-notes h2 { margin-bottom: .55rem; font: 700 1rem/1.2 var(--serif); }
.site-notes p { margin: 0; color: var(--muted); font-size: .86rem; }

a:focus-visible,
summary:focus-visible { outline: 3px solid #a86710; outline-offset: 4px; }

@media (max-width: 48rem) {
  .app-summary { grid-template-columns: auto 1fr; }
  .app-meta { grid-column: 1 / -1; padding-top: 1rem; border-top: 1px solid var(--line); }
  .app-body { grid-template-columns: 1fr; }
  .download-button { width: fit-content; grid-column: 1; grid-row: auto; margin-top: .5rem; }
  .details-grid { grid-template-columns: 1fr; }
}

@media (max-width: 36rem) {
  .site-header, main { width: min(100% - 1.25rem, 68rem); }
  .app-icon { width: 4.2rem; border-radius: 1rem; }
  .app-meta { display: grid; grid-template-columns: 1fr 1fr; }
  .download-button { width: 100%; }
  .site-notes { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}