:root {
  --bg: #efe7dc;
  --bg-deep: #1c1916;
  --card: #fffdf9;
  --ink: #1c1916;
  --muted: #5c534b;
  --line: #e3d8cb;
  --accent: #145e57;
  --accent-ink: #f4fffc;
  --warn-bg: #fff4d8;
  --warn: #6d4d10;
  --error-bg: #fde8e4;
  --error: #8a2b22;
  --ok: #1d6b45;
  --shadow: 0 16px 40px rgba(48, 32, 16, 0.08);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141210;
    --bg-deep: #0d0c0b;
    --card: #221e1b;
    --ink: #f6f1ea;
    --muted: #c9bfb4;
    --line: #3a332d;
    --accent: #8fd0c8;
    --accent-ink: #10221f;
    --warn-bg: #3a2e18;
    --warn: #f3d48a;
    --error-bg: #3c221e;
    --error: #ffb4aa;
    --ok: #8fd0a8;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html { overflow-x: clip; }

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  background:
    radial-gradient(1200px 400px at 10% -10%, rgba(20, 94, 87, 0.16), transparent 50%),
    var(--bg);
  color: var(--ink);
}

.wrap {
  width: min(40rem, 100%);
  margin: 0 auto;
  padding: max(1.25rem, env(safe-area-inset-top)) 1rem max(2rem, env(safe-area-inset-bottom));
}

.mast h1 {
  font-size: clamp(1.8rem, 6vw, 2.4rem);
  line-height: 1.1;
  margin: 0.15rem 0 0.6rem;
  letter-spacing: -0.03em;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lede, .note {
  color: var(--muted);
  margin-top: 0;
}

.stack, form { display: grid; gap: 0.9rem; }

fieldset.choices {
  border: 0;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.choices legend {
  grid-column: 1 / -1;
  font-weight: 650;
  padding: 0;
  margin-bottom: 0.2rem;
}

.choice {
  display: block;
  position: relative;
}

.choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 1.25rem;
  height: 1.25rem;
  margin: 0;
}

.choice span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 3.25rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  font-weight: 700;
}

.choice input:focus-visible + span,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.choice input:checked + span {
  background: var(--bg-deep);
  color: #f6f1ea;
  border-color: var(--bg-deep);
}

@media (prefers-color-scheme: dark) {
  .choice input:checked + span {
    background: var(--accent);
    color: var(--accent-ink);
    border-color: var(--accent);
  }
}

.field { display: grid; gap: 0.35rem; font-weight: 650; }
.field small { font-weight: 500; color: var(--muted); }

input, textarea, select {
  width: 100%;
  font: inherit;
  color: inherit;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem 0.85rem;
  min-height: 3rem;
}

textarea { min-height: 7rem; resize: vertical; }

button, .link {
  font: inherit;
  border: 0;
  border-radius: 999px;
  min-height: 3.25rem;
  padding: 0.75rem 1.1rem;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

.primary {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 750;
}

.secondary, .quiet {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.quiet { color: var(--muted); }

.actions { display: grid; gap: 0.6rem; }

.banner, .callout, .note {
  border-radius: 14px;
  padding: 0.8rem 0.95rem;
}

.banner.error, .callout { background: var(--error-bg); color: var(--error); }
.banner.warn, .pill.warn { background: var(--warn-bg); color: var(--warn); }
.note { background: var(--card); box-shadow: var(--shadow); }

.callout h2, .again h2, section h2 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.callout p { margin: 0 0 0.4rem; }

.tracks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.track {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.7rem;
  background: var(--card);
  border-radius: 16px;
  padding: 0.85rem;
  box-shadow: var(--shadow);
}

.check { padding-top: 1.7rem; }
.check input { width: 1.35rem; height: 1.35rem; accent-color: var(--accent); }

.fields { display: grid; gap: 0.45rem; }
.fields label { display: grid; gap: 0.15rem; font-size: 0.78rem; color: var(--muted); font-weight: 650; }
.fields input { min-height: 2.7rem; }

.meta { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; margin: 0; color: var(--muted); font-size: 0.85rem; }
.pill { border-radius: 999px; padding: 0.15rem 0.55rem; font-size: 0.75rem; font-weight: 700; }
.pill.ok { background: color-mix(in srgb, var(--ok) 18%, transparent); color: var(--ok); }
.pill.replaced { background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--accent); }

.plain { margin: 0; padding-left: 1.2rem; }
.plain li, .callout li { margin: 0.25rem 0; }
.callout ul { margin: 0; padding-left: 1.1rem; }

.again {
  border-top: 1px solid var(--line);
  padding-top: 0.4rem;
}

.progress {
  position: sticky;
  top: env(safe-area-inset-top);
  z-index: 3;
  margin: 0 0 1rem;
}

.progress-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 0.85rem;
  align-items: center;
  background: var(--card);
  color: var(--ink);
  border-radius: 16px;
  padding: 0.9rem 1rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}

.progress.is-error .progress-card {
  background: var(--error-bg);
  color: var(--error);
}

.progress-card > div { min-width: 0; }

.progress-step {
  margin: 0;
  font-weight: 750;
  font-size: 1.05rem;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.progress-count {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  overflow-wrap: anywhere;
}

.progress.is-error .progress-count { color: inherit; }

.spinner {
  width: 1.7rem;
  height: 1.7rem;
  border-radius: 50%;
  border: 3px solid var(--line);
  border-top-color: var(--accent);
  animation: spin 0.7s linear infinite;
}

.bar {
  grid-column: 1 / -1;
  height: 0.45rem;
  background: var(--line);
  border-radius: 999px;
  overflow: hidden;
  contain: paint;
}

.bar span {
  display: block;
  height: 100%;
  background: var(--accent);
  border-radius: inherit;
}

.bar.indeterminate span {
  width: 40%;
  animation: slide 1.1s ease-in-out infinite;
}

body.is-busy button { opacity: 0.55; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes slide {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(280%); }
}

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 420px) {
  .choices { grid-template-columns: 1fr; }
  .progress-card { padding: 0.85rem 0.9rem; }
  .progress-step { font-size: 1rem; }
}