/* Eagle Commander — one stylesheet for every page.
 *
 * The system font on purpose: a page for a program that sends nothing
 * anywhere (D97) does not fetch its type from somebody else's server, and on
 * a Mac it is the same face the program itself is set in. */

:root {
  --page: #e4e9ef;
  --paper: #ffffff;
  --ink: #1c2530;
  --muted: #5f6b78;
  --rule: #c9d2dc;
  --eagle: #164b7e;          /* the blue of the icon */
  --eagle-ink: #ffffff;
  --marked: #b8322a;         /* marked files are red, as in Total Commander */
  --key: #f2f5f8;
  --todo: #fff3b0;

  --measure: 40rem;
  --wide: 68rem;
  --radius-window: 12px;
  --radius-control: 7px;

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #1a2029;
    --paper: #232b36;
    --ink: #e6ebf1;
    --muted: #9aa7b5;
    --rule: #364352;
    --eagle: #4a8bd4;
    --eagle-ink: #0d1520;
    --marked: #ff7468;
    --key: #2c3643;
    --todo: #5a4b00;
  }
}

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

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

body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font: 17px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-feature-settings: "kern";
}

a { color: var(--eagle); text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible {
  outline: 3px solid var(--eagle);
  outline-offset: 3px;
  border-radius: 3px;
}

.skip {
  position: absolute;
  left: -999px;
}
.skip:focus { left: 1rem; top: 1rem; background: var(--paper); padding: 0.5rem 0.75rem; }

/* ---------- Header and footer ---------- */

.site-header,
.site-footer,
.page {
  width: min(100% - 2rem, var(--wide));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  font-weight: 650;
  text-decoration: none;
}
.brand img { width: 32px; height: 32px; }

.site-nav {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
  font-size: 0.94rem;
}
.site-nav a { color: var(--ink); text-decoration: none; }
.site-nav a:hover { color: var(--eagle); }

.site-footer {
  margin-top: 6rem;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.875rem;
}
.site-footer p { margin: 0 0 0.5rem; max-width: var(--measure); }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; margin-bottom: 1rem; }

/* ---------- Text ---------- */

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.01em; }

h1 {
  font-size: clamp(2.1rem, 1.2rem + 3.6vw, 3.6rem);
  font-weight: 750;
  letter-spacing: -0.025em;
  max-width: 16em;
  margin: 2.5rem 0 1rem;
}

h2 {
  font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
  font-weight: 700;
  margin: 0 0 1rem;
}

h3 { font-size: 1.05rem; font-weight: 650; margin: 0 0 0.4rem; }

.lede {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: var(--measure);
  margin: 0 0 2.5rem;
}

.prose { max-width: var(--measure); }
/* A whole page of text keeps the page's left edge, under the logo; only
 * the lines are held to a readable measure. */
.page.prose { max-width: none; }
.page.prose > * { max-width: var(--measure); }
.prose p, .prose ul, .prose ol { margin: 0 0 1rem; }
.prose li { margin-bottom: 0.35rem; }
.prose h2 { margin-top: 2.5rem; }
.prose h3 { margin-top: 1.75rem; }

code, kbd {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.88em;
}

/* Placeholders that must be filled before the page is published. The
 * release script refuses to publish while any are left. */
.todo { background: var(--todo); padding: 0 0.2em; border-radius: 3px; }

/* ---------- The window (the one bold thing on the page) ---------- */

.window {
  margin: 0;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: var(--radius-window);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04), 0 24px 60px -24px rgba(22, 40, 70, 0.35);
  overflow: hidden;
  font-size: 0.8rem;
  line-height: 1.35;
  user-select: none;
  -webkit-user-select: none;
}
.window:focus-visible { outline-offset: 4px; border-radius: var(--radius-window); }

.titlebar {
  display: flex;
  align-items: center;
  height: 2.4rem;
  padding: 0 0.85rem;
  border-bottom: 1px solid var(--rule);
  background: var(--key);
}
.lights { display: flex; gap: 0.45rem; }
.lights i { width: 0.75rem; height: 0.75rem; border-radius: 50%; background: #ff5f57; }
.lights i:nth-child(2) { background: #febc2e; }
.lights i:nth-child(3) { background: #28c840; }
.titlebar span:last-child { flex: 1; text-align: center; color: var(--muted); font-weight: 600; margin-right: 3rem; }

.panels { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
.panel { overflow: hidden; }
.panel + .panel { border-left: 1px solid var(--rule); }

.path {
  padding: 0.4rem 0.7rem;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font-weight: 600;
}
.panel.is-active .path { color: var(--ink); }

.listing { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.listing th {
  padding: 0.3rem 0.7rem;
  text-align: left;
  color: var(--muted);
  font-weight: 500;
  border-bottom: 1px solid var(--rule);
}
.listing td { padding: 0.22rem 0.7rem; white-space: nowrap; }
.listing .num { text-align: right; }
.listing .dir td:first-child { font-weight: 600; }
.listing .marked td { color: var(--marked); }
.panel.is-active .cursor td { background: var(--eagle); color: var(--eagle-ink); }
.panel.is-active .cursor.marked td { color: #ffd9d6; }
.panel:not(.is-active) .cursor td { box-shadow: inset 0 1px 0 var(--rule), inset 0 -1px 0 var(--rule); }

.status {
  padding: 0.35rem 0.7rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.fkeys {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule);
  background: var(--rule);
}
.fkeys li { padding: 0.45rem 0.6rem; background: var(--key); white-space: nowrap; }
.fkeys kbd { font-weight: 700; margin-right: 0.35rem; font-size: 0.95em; }

.try {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.875rem;
}
.try kbd {
  padding: 0.05em 0.4em;
  border: 1px solid var(--rule);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--paper);
}

/* ---------- Actions ---------- */

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin: 2.5rem 0 0;
}

.button {
  display: inline-block;
  padding: 0.7rem 1.15rem;
  border-radius: var(--radius-control);
  border: 1px solid var(--eagle);
  background: var(--eagle);
  color: var(--eagle-ink);
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.button:hover { filter: brightness(1.08); }
.button.secondary { background: transparent; color: var(--eagle); }
.button:disabled { opacity: 0.55; cursor: progress; }
.button[aria-disabled="true"] { opacity: 0.6; cursor: default; filter: none; }

.fine { color: var(--muted); font-size: 0.875rem; margin: 0.6rem 0 0; }

.brew {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-control);
  background: var(--paper);
  max-width: 100%;
  overflow-x: auto;
}

/* ---------- Sections of the landing page ---------- */

.section { margin-top: 6rem; }

.features {
  display: grid;
  grid-template-columns: minmax(9rem, 14rem) minmax(0, var(--measure));
  gap: 0 3rem;
  margin: 2rem 0 0;
}
.features dt {
  font-weight: 650;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--rule);
}
.features dd {
  margin: 0;
  padding: 1.1rem 0 1.4rem;
  border-top: 1px solid var(--rule);
}
.features dd ul { margin: 0; padding-left: 1.1rem; }
.features dd li { margin-bottom: 0.3rem; }

.price {
  display: grid;
  grid-template-columns: auto minmax(0, var(--measure));
  gap: 0.5rem 3rem;
  align-items: start;
  justify-content: start;
}
.price .amount {
  font-size: clamp(3rem, 2rem + 4vw, 5rem);
  font-weight: 750;
  letter-spacing: -0.04em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.price p { margin: 0 0 1rem; }

/* ---------- Checkout ---------- */

.order {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 1rem;
  margin: 2rem 0 0;
}
.order label { display: grid; gap: 0.3rem; font-weight: 600; font-size: 0.94rem; }
.order input {
  width: 6rem;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-control);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-variant-numeric: tabular-nums;
}
.order output { color: var(--muted); padding-bottom: 0.7rem; font-variant-numeric: tabular-nums; }

.message { margin-top: 1.5rem; padding: 0.8rem 1rem; border-left: 3px solid var(--marked); background: var(--paper); max-width: var(--measure); }
.message[hidden] { display: none; }

/* ---------- Small screens ---------- */

@media (max-width: 760px) {
  .panels { grid-template-columns: minmax(0, 1fr); }
  .panel + .panel { display: none; }
  .fkeys { grid-template-columns: repeat(3, 1fr); }
  .listing .date { display: none; }
  .features, .price { grid-template-columns: 1fr; }
  .features dd { border-top: 0; padding-top: 0.2rem; }
  .site-nav a:not(:last-child) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}