/* Shared brand and controls. Page CSS owns the format of its content. */
:root {
  --pp-paper: #fbfaf7; --pp-charcoal: #1c1b19; --pp-rust: #a43f24;
  --color-bg-page: var(--pp-paper); --color-bg-surface: #fff;
  --color-text-primary: var(--pp-charcoal); --color-text-secondary: #5f5b55;
  --color-border-subtle: #e4e0d8; --color-border-control: #817a6e;
  --color-accent-solid: var(--pp-rust); --color-accent-solid-hover: #87311c;
  --color-text-on-accent: #fff; --color-accent-text: var(--pp-rust);
  --color-header-bg: var(--pp-charcoal); --color-header-text: #f4efe7;
  --color-inverse-bg: #1c1b19; --color-inverse-text: #f4efe7;
  --color-inverse-muted: #c8c0b4; --color-inverse-accent: #f4b096;
  --color-success-text: #2f6b4f; --color-error-text: #a43f24;
  --font-ui: system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-reading: Georgia, "Times New Roman", serif;
  --text-section-title: clamp(32px, 5vw, 48px); --text-offer-title: 24px;
  --radius-control: 8px; --radius-card: 12px; --site-width: 72rem;
  /* Compatibility aliases for the existing content templates. */
  --bg: var(--color-bg-page); --paper: var(--color-bg-surface); --card: var(--color-bg-surface);
  --fg: var(--color-text-primary); --ink: var(--color-text-primary);
  --muted: var(--color-text-secondary); --line: var(--color-border-subtle);
  --accent: var(--color-accent-solid); --accent-fg: var(--color-text-on-accent);
  --top: var(--color-header-bg); --top-fg: var(--color-header-text);
  --top-muted: var(--color-inverse-muted); --paid: var(--color-accent-solid);
  --sub: var(--color-success-text); --ok: var(--color-success-text); --err: var(--color-error-text);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-page: #161513; --color-bg-surface: #1e1d1a;
    --color-text-primary: #ece8e1; --color-text-secondary: #a8a296;
    --color-border-subtle: #3c3933; --color-border-control: #90877a;
    --color-accent-solid: #f08a5d; --color-accent-solid-hover: #ffa477;
    --color-text-on-accent: #161513; --color-accent-text: #f08a5d;
    --color-success-text: #6fc59b; --color-error-text: #f08a5d;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { background: var(--color-bg-page); }
body { margin: 0; background: var(--color-bg-page); color: var(--color-text-primary); }
a { text-underline-offset: .2em; }
h1, h2, h3 { text-wrap: balance; overflow-wrap: anywhere; }
main { min-width: 0; }
/* A single header, independent of the reading measure. */
.pp-header-band { width: 100%; background: var(--color-header-bg); }
.pp-header-band .pp-header {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  width: 100%; max-width: var(--site-width); min-height: 80px;
  margin: 0 auto; padding: 12px 24px; gap: 8px 24px; border: 0;
  background: var(--color-header-bg); color: var(--color-header-text); font-family: var(--font-ui);
}
.pp-header .pp-brand {
  display: inline-flex; align-items: center; min-height: 44px; flex-shrink: 0;
  margin: 0; padding: 0; color: var(--color-header-text); text-decoration: none;
  font: 750 24px/1.2 var(--font-ui); letter-spacing: -.5px;
}
.pp-header .pp-nav { display: flex; flex-wrap: wrap; gap: 0 24px; align-items: center; min-width: 0; font: 400 15px/1.5 var(--font-ui); }
.pp-header .pp-nav a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 8px 0;
  color: var(--color-header-text); text-decoration: none; border-radius: 0;
}
.pp-header .pp-nav a:hover { text-decoration: underline; }
.pp-header .pp-nav a[aria-current] { font-weight: 700; text-decoration: underline; }
.pp-skip {
  position: absolute; top: 8px; left: 20px; z-index: 20; transform: translateY(-200%);
  padding: 12px 16px; background: var(--color-header-text); color: var(--color-header-bg);
  font: 600 16px/1.5 var(--font-ui); border-radius: var(--radius-control);
}
.pp-skip:focus { transform: none; }
:is(a, button, input, summary, [tabindex]):focus-visible { outline: 2px solid var(--color-accent-text); outline-offset: 4px; }
.pp-header :is(a, button):focus-visible { outline-color: var(--color-header-text); }
.pp-skip:focus-visible { outline-color: var(--color-header-bg); }
/* Controls share their appearance across landing, reading, plans and decks. */
:is(button[type="submit"], .actions a.primary, a.button, a.btn, a.offer-button) {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;
  max-width: 100%; padding: 12px 20px; border: 1px solid var(--color-accent-solid);
  border-radius: var(--radius-control); background: var(--color-accent-solid);
  color: var(--color-text-on-accent); text-decoration: none;
  font: 650 16px/1.4 var(--font-ui); text-align: center; overflow-wrap: anywhere; cursor: pointer;
}
:is(button[type="submit"], .actions a.primary, a.button, a.btn, a.offer-button):hover {
  background: var(--color-accent-solid-hover); border-color: var(--color-accent-solid-hover);
  color: var(--color-text-on-accent); filter: none;
}
.plans .btn { display: flex; }
a.btn.ghost { color: var(--color-text-primary); background: transparent; border-color: var(--color-border-control); }
a.btn.ghost:hover { color: var(--color-accent-text); border-color: var(--color-accent-solid); }
:is(.subscription-fields, .template-offer .fields, .signup .fields, .want .row) { gap: 12px; }
body.pp-site form input[type="email"] {
  min-height: 48px; min-width: 0; max-width: 100%; padding: 12px 14px;
  border: 1px solid var(--color-border-control); border-radius: var(--radius-control);
  background: var(--color-bg-page); color: var(--color-text-primary);
  font: 400 16px/1.4 var(--font-ui);
}
body.pp-site form input[type="email"]::placeholder { color: var(--color-text-secondary); opacity: 1; }
form label:not(.trap) { font-family: var(--font-ui); }
form label[for$="email"] { display: block; margin: 0 0 8px; font-size: 15px; font-weight: 600; }
form button[type="submit"]:disabled { opacity: .65; cursor: wait; }
form input[aria-invalid="true"] { border-color: var(--color-error-text); }
form :is([role="status"], .form-result) { font: 15px/1.6 var(--font-ui); }
form [role="status"]:not(:empty) { margin: 12px 0 0; }
.form-result a { display: inline-flex; align-items: center; min-height: 44px; }
.toggle button { min-height: 44px; font-family: var(--font-ui); }
.plan, .want, .gate { border-radius: var(--radius-card); }
.out.hit { color: var(--color-text-on-accent); }
.pp-site :is(.news, .signup, .template-offer, .want, .gate) h2 {
  font: 700 var(--text-offer-title)/1.2 var(--font-ui); letter-spacing: normal;
}
.pp-cases h1, .pp-plans .hero h1, .pp-blog:not(.article-page) h1 {
  font: 700 var(--text-section-title)/1.1 var(--font-ui);
}
/* Large display titles are a deliberate content variant. */
.pp-home { color: var(--color-text-primary); }
.pp-home .scene {
  --fg: var(--color-inverse-text); --muted: var(--color-inverse-muted);
  --accent: var(--color-inverse-accent); color: var(--fg); background: var(--color-inverse-bg);
}
.pp-home .scene a:not(.primary) { color: var(--color-inverse-text); }
.pp-home .scene .actions a.primary { background: var(--color-accent-solid); color: var(--color-text-on-accent); }
.pp-home .scene .actions a.primary:hover { background: var(--color-accent-solid-hover); }
.pp-home .scene :focus-visible { outline-color: var(--color-inverse-text); }
.pp-home .content, .pp-home .reading, .pp-home .news { max-width: var(--site-width); }
.pp-home .reading :is(a, h2), .pp-home .news h2 { color: var(--color-text-primary); }
.pp-home .reading a:hover, .pp-home .reading a.all { color: var(--color-accent-text); }
.pp-home .reading li, .pp-home .news { border-color: var(--color-border-subtle); }
.pp-home .reading a { text-decoration-color: currentColor; }
.pp-home .news a { color: var(--color-accent-text); }
.pp-home .reading p, .pp-home .news > p, .pp-home footer { color: var(--color-text-secondary); }
.pp-library .signup { background: var(--color-bg-surface); color: var(--color-text-primary); border: 1px solid var(--color-border-subtle); border-radius: var(--radius-card); }
.pp-library .signup :is(.consent, .eyebrow) { color: var(--color-text-secondary); }
.pp-library .signup a:not(.button) { color: var(--color-accent-text); }
.pp-library main, .pp-library footer { max-width: var(--site-width); }
.pp-library .hero h1 { font-size: clamp(48px, 7vw, 92px); }
.pp-library :is(.hero, .collection, .detail, .previews) { padding-left: 24px; padding-right: 24px; }
.pp-library .signup, .pp-library .explain { margin-left: 24px; margin-right: 24px; }
.pp-privacy main { max-width: 48rem; margin: 32px auto 64px; padding: 0 24px; font: 18px/1.65 var(--font-reading); }
.pp-privacy h1, .pp-privacy h2 { font-family: var(--font-ui); }
.pp-privacy a { color: var(--color-accent-text); }
/* TOC precedes the article in the DOM; desktop grid keeps its right column. */
.article-layout { grid-template-areas: "post toc"; }
.article-layout .post { grid-area: post; }
.article-layout .article-sidebar { grid-area: toc; }
@media (max-width: 959px) { .article-layout .article-sidebar { order: 0; } }
@media (max-width: 620px) {
  .pp-header-band .pp-header { padding: 12px 20px; gap: 4px 20px; }
  .pp-header .pp-nav { flex-basis: 100%; gap: 0 20px; }
  .pp-library :is(.hero, .collection, .detail, .previews) { padding-left: 20px; padding-right: 20px; }
  .pp-library .signup, .pp-library .explain { margin-left: 20px; margin-right: 20px; }
  .pp-home .reading, .pp-home .news { padding-left: 20px; padding-right: 20px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media (forced-colors: active) { :is(a, button, input, summary, [tabindex]):focus-visible { outline-color: Highlight; } }
[hidden] { display: none !important; }