/* Forts Tools — one stylesheet, no framework, no external fonts.
   Dark by default with a light-scheme variant; both are defined as tokens so nothing
   depends on a media query alone. */

:root {
  --bg: #10131a;
  --panel: #171b24;
  --panel-2: #1e2430;
  --line: #2b3342;
  --ink: #e6e9ef;
  --ink-dim: #9aa3b2;
  --accent: #d98324;
  --accent-ink: #12161d;
  --warn-bg: #2a2113;
  --warn-line: #6b5220;
  --ok: #4caf7d;
  --bad: #e0655f;
  --radius: 10px;
  --measure: 62rem;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f4f5f7;
    --panel: #ffffff;
    --panel-2: #eef0f4;
    --line: #d6dae2;
    --ink: #1b2029;
    --ink-dim: #5b6472;
    --accent: #b5651d;
    --accent-ink: #ffffff;
    --warn-bg: #fdf3e0;
    --warn-line: #e0b877;
    --ok: #1e7a4d;
    --bad: #b3312b;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

header {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  padding: 0.75rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: center;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
  font-size: 1.05rem;
}

nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; }
nav a { color: var(--ink-dim); text-decoration: none; font-size: 0.92rem; }
nav a:hover, nav a:focus-visible { color: var(--ink); text-decoration: underline; }
nav a.on { color: var(--accent); }

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

/* Far right of the header, on its own line if the header wraps on a narrow screen. */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: auto;
}
.lang-switch select {
  font-size: 0.85rem;
  padding: 0.2rem 0.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-2);
  color: var(--ink);
}
.lang-switch button {
  font-size: 0.85rem;
  padding: 0.2rem 0.6rem;
  min-width: 0;
}

main {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

footer {
  max-width: var(--measure);
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
  color: var(--ink-dim);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
}
footer a { color: var(--ink-dim); }

h1 { font-size: 1.7rem; line-height: 1.25; margin: 0 0 0.75rem; }
h2 { font-size: 1.15rem; margin: 2rem 0 0.6rem; }
p { margin: 0 0 1rem; }
.lede { color: var(--ink-dim); max-width: 44rem; }
.note { color: var(--ink-dim); font-size: 0.9rem; }
.empty { color: var(--ink-dim); font-style: italic; }
.error { font-size: 1.05rem; }
a { color: var(--accent); }

/* cards ------------------------------------------------------------------ */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}
.card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  text-decoration: none;
  color: inherit;
}
.card:hover, .card:focus-visible { border-color: var(--accent); }
.card h2 { margin: 0 0 0.4rem; font-size: 1.05rem; color: var(--accent); }
.card p { margin: 0; color: var(--ink-dim); font-size: 0.92rem; }

.privacy {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
  font-size: 0.92rem;
}

/* forms ------------------------------------------------------------------ */
.tool {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 1.25rem 0;
}

.drop {
  display: block;
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  text-align: center;
  cursor: pointer;
  background: var(--panel-2);
}
.drop:hover, .drop:focus-within { border-color: var(--accent); }
.drop.dragover {
  border-color: var(--accent);
  border-style: solid;
  background: var(--panel);
}
.drop-hint { display: block; color: var(--ink-dim); font-size: 0.85rem; margin-top: 0.3rem; }
.drop input[type="file"] {
  position: absolute;
  width: 1px; height: 1px;
  opacity: 0;
}
.drop-label { display: block; font-weight: 600; }
.drop-name { display: block; color: var(--ink-dim); font-size: 0.9rem; margin-top: 0.35rem; }
.limit { color: var(--ink-dim); font-size: 0.85rem; margin: 0.5rem 0 1rem; }

fieldset.opts {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem 1rem 1rem;
  margin: 0 0 1rem;
}
legend { color: var(--ink-dim); font-size: 0.85rem; padding: 0 0.35rem; }
.radio, .check { display: flex; align-items: center; gap: 0.5rem; margin: 0.45rem 0; flex-wrap: wrap; }

label { display: block; margin-bottom: 0.35rem; }

/* workbench: one operation per block, its own inputs indented under its checkbox */
.op { padding: 0.6rem 0; border-bottom: 1px solid var(--line); }
.op:last-of-type { border-bottom: 0; }
.op .check span { font-weight: 600; }
.op .note { margin: 0.15rem 0 0.35rem 1.6rem; }
.sub {
  margin: 0.35rem 0 0.2rem 1.6rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.6rem;
}
.sub label { margin: 0; color: var(--ink-dim); font-size: 0.9rem; }
.sub .radio { margin: 0; width: 100%; }
.sub .radio label { display: inline; }

input[type="text"] {
  background: var(--panel-2);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.35rem 0.5rem;
  font: inherit;
  max-width: 100%;
}

/* workbench result: the chain, in the order it ran */
ol.pipeline { margin: 0.75rem 0 1.5rem; padding-left: 1.4rem; }
ol.pipeline > li { margin: 0 0 1.1rem; }
ol.pipeline .did { margin: 0 0 0.4rem; }
ol.pipeline table.kv { margin-bottom: 0; }

select {
  background: var(--panel-2);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.4rem 0.5rem;
  font: inherit;
  max-width: 100%;
}

button {
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: 6px;
  padding: 0.6rem 1.4rem;
  font: inherit;
  font-weight: 650;
  cursor: pointer;
}
button:hover { filter: brightness(1.08); }
button[disabled] { opacity: 0.6; cursor: progress; }

.working { color: var(--ink-dim); margin: 0.75rem 0 0; font-size: 0.9rem; }

/* results ---------------------------------------------------------------- */
table.kv {
  border-collapse: collapse;
  margin: 0 0 1rem;
  width: 100%;
  max-width: 46rem;
}
table.kv.wide { max-width: none; }
table.kv th, table.kv td {
  text-align: left;
  padding: 0.5rem 0.9rem 0.5rem 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.kv th { color: var(--ink-dim); font-weight: 500; white-space: nowrap; }
table.kv thead th { color: var(--ink); }

pre.cmd {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  overflow-x: auto;
  font-size: 0.88rem;
}
pre.cmd code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.warn {
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  border-radius: var(--radius);
  padding: 0.8rem 1.1rem;
  margin: 1.25rem 0;
}
.warn p:last-child, .warn ul:last-child { margin-bottom: 0; }
.warn ul { margin: 0; padding-left: 1.1rem; }

ul.downloads { list-style: none; padding: 0; margin: 1rem 0; }
ul.downloads li {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
}
.meta { color: var(--ink-dim); font-size: 0.87rem; }

.dl { font-weight: 650; }

ul.checks { list-style: none; padding: 0; margin: 0.5rem 0 1rem; }
ul.checks li { padding: 0.2rem 0 0.2rem 1.6rem; position: relative; }
ul.checks li::before { position: absolute; left: 0; }
ul.checks li.pass::before { content: "\2713"; color: var(--ok); }
ul.checks li.fail::before { content: "\2717"; color: var(--bad); }

table.activity tr.activity-fail td:nth-child(3) { color: var(--bad); }
table.activity tr.activity-ok td:nth-child(3) { color: var(--ok); }

@media (max-width: 40rem) {
  main { padding: 1.25rem 1rem 2rem; }
  h1 { font-size: 1.4rem; }
}