/* didwell.org — site styles.
   Single stylesheet, no build step, no external fonts. Light/dark via
   prefers-color-scheme so the page matches the visitor's OS. */

:root {
  --bg: #fbfaf8;
  --bg-raised: #ffffff;
  --ink: #16161a;
  --ink-soft: #5a5a66;
  --ink-faint: #8a8a96;
  --rule: #e6e3dd;
  --accent: #1f7a5c;
  --accent-soft: #e6f2ed;
  --shadow: 0 1px 2px rgba(20, 20, 30, .05), 0 8px 24px rgba(20, 20, 30, .05);
  --radius: 12px;
  --measure: 62ch;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111114;
    --bg-raised: #1a1a1f;
    --ink: #f2f1ee;
    --ink-soft: #a9a8b2;
    --ink-faint: #74737e;
    --rule: #2b2b33;
    --accent: #56c39a;
    --accent-soft: #16302a;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .3);
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  background: var(--bg-raised);
  color: var(--ink);
  padding: .6rem 1rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ---- header / footer ---- */

header.site {
  border-bottom: 1px solid var(--rule);
  padding: 1.25rem 1.5rem;
}

.brand {
  display: inline-block;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -.02em;
  text-decoration: none;
  color: var(--ink);
}
.brand-mark.accent { color: var(--accent); }

footer.site {
  border-top: 1px solid var(--rule);
  margin-top: 4rem;
  padding: 1.75rem 1.5rem 3rem;
  color: var(--ink-faint);
  font-size: .9rem;
}
footer.site p { margin: 0; }
.dot {
  display: inline-block;
  width: .5rem;
  height: .5rem;
  margin-right: .55rem;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: baseline;
}
.sep { margin: 0 .5rem; color: var(--rule); }

/* ---- layout ---- */

main {
  max-width: 68rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section { padding: 3.5rem 0; }
section + section { border-top: 1px solid var(--rule); }

h1, h2, h3 { letter-spacing: -.02em; line-height: 1.2; margin: 0 0 .75rem; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); font-weight: 700; max-width: 18ch; }
h2 { font-size: 1.05rem; font-weight: 600; color: var(--ink-soft);
     text-transform: uppercase; letter-spacing: .08em; margin-bottom: 2rem; }
h3 { font-size: 1.1rem; font-weight: 650; }
p  { margin: 0 0 1rem; max-width: var(--measure); }

main a { color: var(--accent); }

/* ---- hero ---- */

.hero { padding-top: 4.5rem; }

.eyebrow {
  color: var(--accent);
  font-size: .82rem;
  font-weight: 650;
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin-top: 1.5rem;
}

/* ---- start form (landing) ---- */

.start-form {
  margin-top: 2.25rem;
  max-width: 36rem;
}
.start-form label {
  display: block;
  font-weight: 600;
  font-size: .95rem;
  margin-bottom: .45rem;
}
.optional { color: var(--ink-faint); font-weight: 400; }

.start-row, .join-row {
  display: flex;
  gap: .6rem;
}

input[type="text"] {
  flex: 1 1 auto;
  min-width: 0;
  font: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: var(--bg-raised);
  border: 1px solid var(--rule);
  border-radius: 10px;
  padding: .7rem .85rem;
}
input[type="text"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

button {
  flex: 0 0 auto;
  font: inherit;
  font-size: 1rem;
  font-weight: 650;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 10px;
  padding: .7rem 1.2rem;
  cursor: pointer;
}
button:hover { filter: brightness(1.08); }
button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
button[hidden] { display: none; }
@media (prefers-color-scheme: dark) {
  button { color: #0d1f18; }
}

.start-note {
  margin-top: .85rem;
  color: var(--ink-faint);
  font-size: .9rem;
}

.form-error {
  color: #b3261e;
  font-weight: 600;
  margin-bottom: .75rem;
}
@media (prefers-color-scheme: dark) {
  .form-error { color: #f2b8b5; }
}

/* ---- retro page (placeholder board) ---- */

.board-head { padding-top: 3.5rem; }
.board-head h1 { overflow-wrap: anywhere; }

.facilitator-note {
  margin-top: 1.25rem;
  padding: .9rem 1.1rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--ink);
  font-size: .97rem;
}

.share > * { max-width: 40rem; }
.share-hint { color: var(--ink-soft); }
.retro-code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: clamp(2.4rem, 9vw, 3.4rem);
  font-weight: 700;
  letter-spacing: .28em;
  color: var(--accent);
  margin: .5rem 0 1.5rem;
}
.join-label {
  display: block;
  font-weight: 600;
  font-size: .95rem;
  margin-bottom: .45rem;
}
.join-url {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: .95rem !important;
}

.coming p { color: var(--ink-soft); }

/* ---- steps ---- */

.step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: start;
  gap: 1.25rem;
  padding: 1.5rem;
  background: var(--bg-raised);
}

.step-n {
  display: grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: .9rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.step-body h3 { margin-bottom: .35rem; }
.step-body p  { margin: 0; color: var(--ink-soft); }

.step-tag {
  align-self: center;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .22em;
  color: var(--ink-faint);
  border: 1px dashed var(--rule);
  border-radius: 8px;
  padding: .35rem .6rem;
  white-space: nowrap;
}

/* ---- principles ---- */

.grid {
  display: grid;
  /* Two columns once there's room: four cards balance as 2x2 rather than
     wrapping 3 + 1 orphan. */
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
@media (min-width: 48rem) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

.card {
  background: var(--bg-raised);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.card h3 { margin-bottom: .5rem; }
.card p  { margin: 0; color: var(--ink-soft); font-size: .97rem; }

/* ---- narrow screens ---- */

@media (max-width: 640px) {
  body { font-size: 16px; }
  main { padding: 0 1rem; }
  header.site, footer.site { padding-left: 1rem; padding-right: 1rem; }
  section { padding: 2.5rem 0; }
  .hero { padding-top: 3rem; }
  .step { grid-template-columns: auto 1fr; gap: 1rem; padding: 1.25rem; }
  .step-tag { display: none; }
  .start-row { flex-direction: column; }
}