/* =============================================================================
   The Brief  ·  [data-ks-brief]
   Five-question guided intake on the paper band of brief.html, ink on paper.
   The rail sits left on wide screens and folds to a top row on small ones.
   All classes are prefixed ks-brief- to avoid collisions.
   ========================================================================== */

[data-ks-brief] {
  --kb-ink: var(--ink);
  --kb-soft: var(--ink-soft);
  --kb-hair: var(--hairline-dark);
  color: var(--kb-ink);
}

/* ---- shell -------------------------------------------------------------- */
.ks-brief {
  position: relative;
  display: grid;
  gap: 30px;
  max-width: 860px;
}

.ks-brief-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px 28px;
}

.ks-brief-eyebrow {
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
  opacity: 0.55;
}

.ks-brief-credit {
  font-size: 9.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  opacity: 0.42;
}

/* ---- layout: rail | stage ----------------------------------------------- */
.ks-brief-body {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 8px 52px;
  border-top: 1px solid var(--kb-hair);
  padding-top: 28px;
}

.ks-brief-rail-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ks-brief-rail-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 24px;
  padding: 6px 13px;
  font: inherit;
  font-size: 10px;
  letter-spacing: 0.18em;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--kb-ink);
  background: none;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  opacity: 0.42;
  transition: opacity 0.2s ease, background 0.2s ease,
              color 0.2s ease, border-color 0.2s ease;
}
.ks-brief-rail-btn:hover { opacity: 0.85; }
.ks-brief-rail-btn.is-done { opacity: 0.8; }
.ks-brief-rail-btn.is-current {
  background: var(--kb-ink);
  color: var(--paper);
  border-color: var(--kb-ink);
  opacity: 1;
}

.ks-brief-rail-tick { display: none; font-size: 9px; line-height: 1; }
.ks-brief-rail-btn.is-done .ks-brief-rail-tick { display: inline; }

/* ---- stage / steps ------------------------------------------------------- */
.ks-brief-stage { position: relative; min-height: 330px; }

.ks-brief-step {
  display: grid;
  gap: 20px;
  align-content: start;
  outline: none;
}
.ks-brief-step[hidden] { display: none; }

.ks-brief-qnum {
  font-size: 9.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 600;
  opacity: 0.5;
}

.ks-brief-qtitle {
  font-size: clamp(1.5rem, 3.2vw, 2.15rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.12;
  max-width: 24ch;
}

/* quick slide-fade on step entry; still mode never adds these classes,
   and the guards below make sure css alone can not reintroduce motion */
@keyframes ks-brief-in-fwd {
  from { opacity: 0; transform: translateX(18px); }
  to   { opacity: 1; transform: none; }
}
@keyframes ks-brief-in-back {
  from { opacity: 0; transform: translateX(-18px); }
  to   { opacity: 1; transform: none; }
}
.ks-brief-anim-fwd  { animation: ks-brief-in-fwd 0.26s ease both; }
.ks-brief-anim-back { animation: ks-brief-in-back 0.26s ease both; }
html.no-motion .ks-brief-step { animation: none !important; }
@media (prefers-reduced-motion: reduce) {
  .ks-brief-step { animation: none !important; }
}

/* ---- chips --------------------------------------------------------------- */
.ks-brief-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 560px;
}

.ks-brief-chip {
  font: inherit;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--kb-ink);
  background: none;
  border: 1px solid var(--kb-hair);
  border-radius: 999px;
  padding: 8px 16px;
  min-height: 24px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.ks-brief-chip:hover { border-color: var(--kb-ink); }
.ks-brief-chip[aria-pressed="true"] {
  background: var(--kb-ink);
  color: var(--paper);
  border-color: var(--kb-ink);
}

/* ---- text fields ---------------------------------------------------------- */
.ks-brief-textarea,
.ks-brief-input {
  font: inherit;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--kb-ink);
  background: transparent;
  border: 1px solid var(--kb-hair);
  border-radius: 2px;
  padding: 12px 14px;
  width: 100%;
  max-width: 560px;
  transition: border-color 0.2s ease;
}
.ks-brief-textarea { min-height: 150px; resize: vertical; }
.ks-brief-textarea::placeholder,
.ks-brief-input::placeholder { color: var(--kb-soft); opacity: 0.55; }
.ks-brief-textarea:focus,
.ks-brief-input:focus { border-color: var(--kb-ink); }

.ks-brief-who { display: grid; gap: 18px; max-width: 480px; }

.ks-brief-fieldlab {
  display: block;
  margin-bottom: 8px;
  font-size: 9.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 600;
  opacity: 0.55;
}

/* ---- step nav ------------------------------------------------------------- */
.ks-brief-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 16px;
  margin-top: 6px;
  max-width: 560px;
}

.ks-brief-skip {
  font-size: 9.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 600;
  opacity: 0.38;
  text-align: center;
}

.ks-brief-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  border-radius: 999px;
  padding: 9px 20px;
  min-height: 24px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease,
              border-color 0.2s ease, opacity 0.2s ease;
}
.ks-brief-btn-solid {
  background: var(--kb-ink);
  color: var(--paper);
  border: 1px solid var(--kb-ink);
}
.ks-brief-btn-solid:hover { opacity: 0.85; }
.ks-brief-btn-ghost {
  background: none;
  color: var(--kb-ink);
  border: 1px solid var(--kb-hair);
}
.ks-brief-btn-ghost:hover { border-color: var(--kb-ink); }
.ks-brief-btn.is-hidden { visibility: hidden; }
.ks-brief-btn.is-flash { border-color: var(--kb-ink); }

/* ---- review --------------------------------------------------------------- */
.ks-brief-rhead {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.ks-brief-edit {
  font: inherit;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--kb-ink);
  background: none;
  border: 0;
  border-bottom: 1px solid var(--kb-hair);
  padding: 4px 2px;
  min-height: 24px;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s ease, border-color 0.2s ease;
}
.ks-brief-edit:hover { opacity: 1; border-color: var(--kb-ink); }

.ks-brief-sheet {
  border: 1px solid var(--kb-hair);
  padding: 4px 22px;
  max-width: 640px;
}

.ks-brief-frow {
  display: grid;
  gap: 6px;
  padding: 15px 0 16px;
  border-bottom: 1px solid var(--kb-hair);
}
.ks-brief-frow:last-child { border-bottom: 0; }

.ks-brief-fkey {
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
  opacity: 0.5;
}

.ks-brief-fval {
  font-size: 0.95rem;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-wrap: break-word;
}

.ks-brief-fval.ks-brief-blank {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.02rem;
  opacity: 0.45;
}

.ks-brief-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.ks-brief-quiet {
  font-size: 0.9rem;
  color: var(--kb-soft);
  opacity: 0.8;
}
.ks-brief-quiet a {
  color: var(--kb-ink);
  text-decoration: none;
  border-bottom: 1px solid var(--kb-hair);
  transition: border-color 0.2s ease;
}
.ks-brief-quiet a:hover { border-color: var(--kb-ink); }

/* ---- a11y ----------------------------------------------------------------- */
.ks-brief-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* offscreen but selectable, for the execCommand copy fallback */
.ks-brief-copyta {
  position: absolute;
  left: -9999px;
  top: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.ks-brief :focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- small screens -------------------------------------------------------- */
@media (max-width: 640px) {
  .ks-brief-body { grid-template-columns: 1fr; gap: 22px; }
  .ks-brief-rail-list { flex-direction: row; flex-wrap: wrap; gap: 6px; }
  .ks-brief-stage { min-height: 0; }
  .ks-brief-nav { flex-wrap: wrap; }
  .ks-brief-skip { order: 3; width: 100%; text-align: left; }
  .ks-brief-sheet { padding: 2px 16px; }
}