/* ------------------------------------------------------------------
   The Personal Prompt Studio page. It stands on integration.css — the
   hero, the buttons, the cards, the numbered steps and the notes are
   that page's components — and adds only what a page about writing
   up conversations has and a page about an API does not: a sample
   write-up, the prompt library, the four conversations, the rules
   laid out as a line, the questions.

   Prefixed `ps-` for the same reason the other file is prefixed `doc-`.
   ------------------------------------------------------------------ */

/* ---------------- the top of the page ---------------- */
.ps-hero {
  display: grid; gap: clamp(28px, 5vw, 60px); align-items: center;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
}
.ps .doc-h1 { max-width: 22ch; text-wrap: balance; }
.ps .doc-h1 span { color: var(--accent); }
.ps .doc-lede strong { color: var(--text); font-weight: 650; }
.ps-byok {
  margin: 22px 0 0; padding: 2px 0 2px 16px; max-width: 62ch;
  border-left: 3px solid var(--accent);
}
.ps-byok b { display: block; color: var(--text); font-size: 1rem; font-weight: 650; }
.ps-byok p { margin: 6px 0 0; font-size: .95rem; color: var(--text-soft); }
.ps-byok .ps-byok-note { font-size: .85rem; color: var(--text-mute); }
.ps-fine { margin: 14px 0 0; font-size: .86rem; color: var(--text-mute); }
.ps-hero .int-more { margin-top: 12px; }

/* the write-up a call could leave: made up, and labelled as such */
.ps-sample {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md); overflow: hidden;
}
.ps-sample-head {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 14px 22px; border-bottom: 1px solid var(--border);
  font-size: .86rem; font-weight: 620; color: var(--text);
}
.ps-sample-mark { font-size: .75rem; font-weight: 450; color: var(--text-mute); }
.ps-sample-body { padding: clamp(18px, 2.4vw, 26px); }
.ps-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.ps-chip {
  font-size: .76rem; font-weight: 560; padding: 3px 10px; border-radius: 999px;
  color: var(--accent); background: var(--accent-soft);
  border: 1px solid rgba(var(--accent-rgb), .22);
}
.ps-sample h3 { font-size: 1.24rem; margin: 0 0 .45em; }
.ps-sample-body > p { margin: 0; font-size: .94rem; color: var(--text-soft); }
.ps-sample-body > .ps-sample-label {
  margin: 20px 0 8px; font-size: .7rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; color: var(--text-mute);
}
.ps-task {
  position: relative; padding: 11px 0 0 24px; border-top: 1px solid var(--border);
  display: flex; flex-direction: column; font-size: .9rem;
}
.ps-task::before { content: "✓"; position: absolute; left: 2px; top: 10px; color: var(--accent); font-weight: 700; }
.ps-task b { color: var(--text); font-weight: 620; }
.ps-task span { color: var(--text-soft); }
.ps-sample-foot {
  margin: 0; padding: 12px 22px; font-size: .8rem;
  color: var(--text-soft); background: var(--surface-2); border-top: 1px solid var(--border);
}

/* the three promises under the hero: words, not figures, so not mono */
.ps-stats b { font-family: var(--font); font-size: 1.02rem; letter-spacing: -.01em; }

/* ---------------- the prompt library ---------------- */
.ps-library {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr));
}
.ps-prompt {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 22px;
}
.ps-prompt .doc-num { margin-bottom: 12px; }
.ps-prompt h3 { font-size: 1.04rem; margin: 0 0 .35em; }
.ps-prompt p { margin: 0; font-size: .92rem; color: var(--text-soft); }
.ps-prompt-yours {
  background: var(--accent-soft); border-color: rgba(var(--accent-rgb), .26);
}
.ps-after { margin-top: 22px; }

/* ---------------- four conversations ---------------- */
.ps-cases { display: grid; gap: 14px; }
.ps-case {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
}
.ps-case[open] { box-shadow: var(--shadow-sm); }
.ps-case > summary {
  list-style: none; cursor: pointer;
  display: grid; grid-template-columns: 210px minmax(0, 1fr) 28px; align-items: center; gap: 18px;
  padding: 20px clamp(18px, 2.6vw, 28px);
}
.ps-case > summary::-webkit-details-marker { display: none; }
.ps-case > summary:hover { background: var(--surface-2); }
.ps-case-kind {
  font-size: .76rem; font-weight: 680; letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent);
}
.ps-case-title { font-size: 1.12rem; font-weight: 650; letter-spacing: -.015em; color: var(--text); line-height: 1.35; }
/* a plus drawn with two bars, so it is the same in every font; open, it
   drops the upright bar and is a minus */
.ps-case-toggle, .ps-faq summary::after {
  width: 28px; height: 28px; border-radius: 8px; flex: none;
  background:
    linear-gradient(var(--accent), var(--accent)) center / 12px 2px no-repeat,
    linear-gradient(var(--accent), var(--accent)) center / 2px 12px no-repeat,
    var(--accent-soft);
}
.ps-case[open] .ps-case-toggle,
.ps-faq details[open] summary::after {
  background: linear-gradient(var(--accent), var(--accent)) center / 12px 2px no-repeat, var(--accent-soft);
}

.ps-case-body { border-top: 1px solid var(--border); padding: clamp(18px, 2.6vw, 28px); }
.ps-case-body > .ps-case-sub { margin: 0 0 22px; font-size: 1rem; color: var(--text-soft); }
.ps-case-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 3vw, 34px); }
.ps-case-h {
  font-size: .74rem; font-weight: 680; letter-spacing: .09em; text-transform: uppercase;
  color: var(--text-mute); margin: 0 0 14px;
}
.ps-dialogue { list-style: none; margin: 0; padding: 0; display: grid; gap: 15px; }
.ps-speaker { display: block; font-size: .78rem; font-weight: 650; color: var(--accent); margin-bottom: 3px; }
.ps-dialogue p { margin: 0; font-size: .95rem; color: var(--text-soft); }
.ps-outcome {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: clamp(16px, 2vw, 22px);
}
.ps-results { margin: 0; }
.ps-results > div + div { border-top: 1px solid var(--border); margin-top: 13px; padding-top: 13px; }
.ps-results dt { font-size: .84rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.ps-results dd { margin: 0; font-size: .92rem; color: var(--text-soft); }
.ps-adapt {
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: clamp(20px, 3vw, 34px);
  margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--border);
}
.ps-adapt p { margin: 0; font-size: .92rem; color: var(--text-soft); }
.ps-adapt .ps-instruction { border-left: 3px solid var(--accent); padding-left: 13px; color: var(--text); }

/* ---------------- make it yours ---------------- */
.ps-split {
  display: grid; gap: clamp(28px, 5vw, 64px); align-items: start;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.ps-split .section-head { margin-bottom: 26px; }
.ps-edit h3 { margin-bottom: .2em; }
.ps .ps-edit > .ps-field {
  margin: 18px 0 8px; font-size: .72rem; font-weight: 650;
  letter-spacing: .08em; text-transform: uppercase; color: var(--text-mute);
}
.ps .ps-edit > .ps-wording {
  margin: 0; padding: 14px 16px; font-size: .95rem; color: var(--text-soft);
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px;
}
.ps .ps-edit > .ps-wording-new {
  color: var(--text); background: var(--accent-soft); border-color: rgba(var(--accent-rgb), .26);
}
.ps .ps-edit > .ps-fine { margin: 18px 0 0; }

/* ---------------- the rules, as the line a conversation runs along ---------------- */
.ps-flow {
  list-style: none; margin: 0 0 clamp(20px, 3vw, 28px); padding: 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
}
.ps-flow li { padding: clamp(18px, 2.2vw, 24px); border-right: 1px solid var(--border); }
.ps-flow li:last-child { border-right: 0; }
.ps-flow-step {
  display: block; margin-bottom: 10px;
  font-family: var(--mono); font-size: .74rem; font-weight: 650; letter-spacing: .06em;
  text-transform: uppercase; color: var(--accent);
}
.ps-flow h3 { font-size: 1.02rem; margin: 0 0 .35em; }
.ps-flow p { margin: 0; font-size: .9rem; color: var(--text-soft); }

/* cards that are a heading and a paragraph and nothing under it */
.ps .doc-card > p:last-child { margin-bottom: 0; }
.ps-three {
  display: grid; gap: clamp(16px, 2vw, 22px);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
}

/* ---------------- questions ---------------- */
.ps-faq { max-width: 84ch; border-top: 1px solid var(--border); }
.ps-faq details { border-bottom: 1px solid var(--border); }
.ps-faq summary {
  list-style: none; cursor: pointer; position: relative;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 0; font-weight: 620; color: var(--text);
}
.ps-faq summary::-webkit-details-marker { display: none; }
.ps-faq summary::after { content: ""; }
.ps-faq details p { margin: 0 0 18px; font-size: .96rem; color: var(--text-soft); max-width: 76ch; }

/* ---------------- the last word ---------------- */
.ps-cta {
  margin-top: clamp(48px, 7vw, 88px); text-align: center;
  padding: clamp(32px, 5vw, 56px) clamp(20px, 4vw, 40px);
  border: 1px solid rgba(var(--accent-rgb), .22); border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(var(--accent-rgb), .08), rgba(var(--accent-alt-rgb), .04));
}
.ps-cta .section-title { text-wrap: balance; }
.ps-cta .section-lead { max-width: 62ch; margin-inline: auto; }
.ps-cta .doc-cta { justify-content: center; }

/* ---------------- narrower ---------------- */
@media (max-width: 900px) {
  .ps-hero, .ps-split { grid-template-columns: minmax(0, 1fr); }
  .ps-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ps-flow li:nth-child(2) { border-right: 0; }
  .ps-flow li:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
}
@media (max-width: 760px) {
  .ps-case > summary { grid-template-columns: minmax(0, 1fr) 28px; gap: 6px 12px; }
  .ps-case-kind { grid-column: 1; }
  .ps-case-title { grid-column: 1; font-size: 1.05rem; }
  .ps-case-toggle { grid-column: 2; grid-row: 1 / span 2; }
  .ps-case-grid, .ps-adapt { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 560px) {
  .ps-flow { grid-template-columns: minmax(0, 1fr); }
  .ps-flow li { border-right: 0; border-bottom: 1px solid var(--border); }
  .ps-flow li:last-child { border-bottom: 0; }
}