/* ---- tokens ---------------------------------------------------- */
:root {
  --ink: #14161c;          /* page ground: deep slate-ink */
  --ink-2: #1c1f27;        /* raised panels */
  --ink-3: #262a35;        /* borders, rules */
  --fog: #aab2c0;          /* secondary text on dark */
  --snow: #e9ecf2;         /* primary text on dark */
  --paper: #e7d8ae;        /* the file — manila */
  --paper-2: #dcc890;      /* manila shadowed edge */
  --paper-ink: #2a2519;    /* text on manila */
  --stamp-ok: #3e7d4f;     /* rubber stamp green */
  --stamp-bad: #b0432f;    /* rubber stamp red */
  --accent: #e8a33d;       /* amber: links, focus, actions */
  --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  --disp: "Bricolage Grotesque", system-ui, sans-serif;
  --body: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--snow);
  font-family: var(--body);
  line-height: 1.55;
}

a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---- header ----------------------------------------------------- */
.top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 20px clamp(16px, 5vw, 56px);
  border-bottom: 1px solid var(--ink-3);
}
.wordmark { font-family: var(--mono); font-weight: 600; font-size: 15px; }
.wordmark em { font-style: normal; color: var(--accent); }
.top nav { display: flex; gap: 22px; }
.top nav a { color: var(--fog); text-decoration: none; font-size: 14px; }
.top nav a:hover { color: var(--snow); }

/* ---- hero -------------------------------------------------------- */
.hero { padding: clamp(40px, 8vw, 96px) clamp(16px, 5vw, 56px) 8px; max-width: 980px; }
.hero h1 {
  font-family: var(--disp);
  font-weight: 800;
  font-size: clamp(34px, 6vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}
.lede { color: var(--fog); font-size: clamp(16px, 2vw, 19px); max-width: 56ch; margin: 0; }
.lede code, .deploynote code, .validator code, .faq code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: 4px;
  padding: 1px 5px;
  color: var(--paper);
}

/* ---- workbench --------------------------------------------------- */
.workbench {
  display: grid;
  grid-template-columns: minmax(300px, 480px) minmax(320px, 1fr);
  gap: clamp(24px, 4vw, 56px);
  padding: clamp(28px, 5vw, 64px) clamp(16px, 5vw, 56px);
  align-items: start;
}
@media (max-width: 860px) { .workbench { grid-template-columns: 1fr; } }

fieldset { border: 1px solid var(--ink-3); border-radius: 10px; padding: 18px; margin: 0 0 20px; background: var(--ink-2); }
legend { font-family: var(--mono); font-size: 13px; color: var(--fog); padding: 0 8px; }
label { display: block; font-size: 14px; margin-bottom: 14px; color: var(--snow); }
.hint { color: var(--fog); font-size: 12px; font-weight: 400; }
input[type="text"], textarea {
  display: block; width: 100%;
  margin-top: 6px;
  background: var(--ink);
  border: 1px solid var(--ink-3);
  border-radius: 6px;
  color: var(--snow);
  font: 14px/1.5 var(--body);
  padding: 9px 11px;
}
textarea { resize: vertical; }
input::placeholder, textarea::placeholder { color: #5b6270; }

.section-block { border-top: 1px dashed var(--ink-3); padding-top: 14px; margin-top: 14px; position: relative; }
.section-block:first-child { border-top: 0; margin-top: 0; padding-top: 0; }
.section-head { display: flex; gap: 8px; align-items: center; }
.section-head input { flex: 1; }
.linkrow { display: grid; grid-template-columns: 1fr 1.4fr; gap: 8px; margin-top: 8px; }
.linkrow input { margin-top: 0; }
.rowbtns { display: flex; gap: 10px; margin-top: 8px; }

button { font: 600 14px var(--body); border-radius: 7px; cursor: pointer; padding: 9px 16px; }
button.solid { background: var(--accent); color: #201503; border: 1px solid var(--accent); }
button.solid:hover { filter: brightness(1.08); }
button.ghost { background: transparent; color: var(--fog); border: 1px dashed var(--ink-3); }
button.ghost:hover { color: var(--snow); border-color: var(--fog); }
button.mini { padding: 3px 9px; font-size: 12px; }

/* ---- the file: signature element --------------------------------- */
.filewrap { position: sticky; top: 24px; }
@media (max-width: 860px) { .filewrap { position: static; } }
.filecard {
  position: relative;
  background: linear-gradient(174deg, var(--paper) 0%, var(--paper-2) 100%);
  color: var(--paper-ink);
  border-radius: 3px 10px 10px 10px;
  padding: 26px 26px 30px;
  min-height: 320px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.06) inset,
    0 12px 40px rgba(0,0,0,0.45),
    0 2px 6px rgba(0,0,0,0.35);
}
.filetab {
  position: absolute;
  top: -26px; left: 0;
  background: var(--paper);
  color: var(--paper-ink);
  font-family: var(--mono);
  font-weight: 600;
  font-size: 13px;
  padding: 5px 18px 3px;
  border-radius: 8px 12px 0 0;
  clip-path: polygon(0 100%, 0 18%, 8% 0, 82% 0, 100% 70%, 100% 100%);
}
.filecard pre {
  margin: 0;
  font: 13px/1.7 var(--mono);
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 240px;
}
.caret {
  display: inline-block;
  width: 8px; height: 15px;
  background: var(--paper-ink);
  margin-left: 2px;
  animation: blink 1.1s steps(1) infinite;
  position: relative; top: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

.fileactions { display: flex; align-items: center; gap: 12px; margin-top: 16px; }
.sizenote { font-family: var(--mono); font-size: 12px; color: var(--fog); }
.deploynote { color: var(--fog); font-size: 13px; margin-top: 10px; }

/* ---- validator ---------------------------------------------------- */
.validator { padding: clamp(28px, 5vw, 64px) clamp(16px, 5vw, 56px); border-top: 1px solid var(--ink-3); max-width: 860px; }
.validator h2, .faq h2 {
  font-family: var(--disp);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: -0.01em;
  margin: 0 0 10px;
}
.validator p { color: var(--fog); margin: 0 0 18px; }
#valForm { display: flex; gap: 10px; max-width: 520px; }
#valForm input {
  flex: 1; margin-top: 0;
  font-family: var(--mono);
}

.report {
  margin-top: 22px;
  border: 1px solid var(--ink-3);
  border-radius: 10px;
  background: var(--ink-2);
  padding: 20px;
  position: relative;
}
.report .stamp {
  position: absolute;
  top: 14px; right: 18px;
  font-family: var(--disp);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 3px solid currentColor;
  border-radius: 6px;
  padding: 3px 10px;
  transform: rotate(6deg);
  opacity: 0.9;
}
.report .stamp.ok { color: #6fce8a; }
.report .stamp.bad { color: #e77a63; }
.report h3 { margin: 0 0 6px; font-size: 16px; }
.report ul { margin: 10px 0 0; padding-left: 0; list-style: none; }
.report li { padding: 7px 0 7px 26px; position: relative; font-size: 14px; border-top: 1px solid var(--ink-3); }
.report li:first-child { border-top: 0; }
.report li::before { position: absolute; left: 2px; font-family: var(--mono); }
.report li.pass::before { content: "✓"; color: #6fce8a; }
.report li.warn::before { content: "!"; color: var(--accent); }
.report li.fail::before { content: "✕"; color: #e77a63; }
.report .meta { font-family: var(--mono); font-size: 12px; color: var(--fog); margin-top: 12px; }

/* ---- faq / footer -------------------------------------------------- */
.faq { padding: clamp(28px, 5vw, 64px) clamp(16px, 5vw, 56px); border-top: 1px solid var(--ink-3); max-width: 860px; }
.faq dt { font-weight: 600; margin-top: 20px; }
.faq dd { margin: 6px 0 0; color: var(--fog); }

footer {
  border-top: 1px solid var(--ink-3);
  padding: 28px clamp(16px, 5vw, 56px) 44px;
  color: var(--fog);
  font-size: 13px;
  max-width: 900px;
}
footer strong { color: var(--snow); }