/* === PLAYBOOK — page-specific styles only ===
 * Tokens (palette, typefaces, spacing) come from theme.css. Anything used
 * here pulls from those CSS custom properties directly — no redefinitions.
 */

html {
  scroll-behavior: smooth;
  scroll-padding-top: 64px;
}

/* === STICKY IN-PAGE NAV === */
.playbook-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--gold-border);
  backdrop-filter: blur(8px);
}

.playbook-nav__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.playbook-nav__brand {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 0.05em;
  text-decoration: none;
}

.playbook-nav__list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}

.playbook-nav__link {
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  text-decoration: none;
  transition: opacity 0.2s;
}

.playbook-nav__link:hover {
  opacity: 0.7;
}

/* === HERO === */
.playbook-hero {
  position: relative;
  min-height: 60svh;
  display: flex;
  align-items: flex-end;
  padding: var(--pad);
  padding-bottom: clamp(3rem, 8vw, 6rem);
  border-bottom: 1px solid var(--gold-border);
  background: var(--bg);
}

.playbook-hero__inner {
  max-width: 900px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* === SECTION FRAME === */
.playbook-section {
  padding: var(--pad);
  border-top: 1px solid var(--gold-border);
  background: var(--bg);
}

.playbook-section--manifesto {
  background: var(--bg-2);
}

.playbook-section__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.playbook-section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 300;
  line-height: 1.1;
  color: var(--fg);
}

.playbook-section__lead {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 760px;
}

.playbook-section__manifesto {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  font-weight: 300;
  line-height: 1.4;
  color: var(--fg);
  font-style: italic;
}

.playbook-section__lead p {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  font-weight: 300;
  line-height: 1.7;
  color: var(--fg-2);
}

/* === DO / DON'T (reuses technology__left + technology__right) === */
.playbook-do-dont {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--gold-border);
}

.playbook-do-dont__col.playbook-do-dont__col {
  border: 0;
  padding: var(--pad);
}

.playbook-voice-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.playbook-voice-list li {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 1.5rem;
  align-items: baseline;
  padding: 1.5rem 0;
  border-top: 1px solid var(--gold-border);
}

.playbook-voice-list li:first-child {
  border-top: none;
  padding-top: 2rem;
}

.playbook-voice-list--avoid li {
  border-top-color: rgba(201, 169, 110, 0.15);
}

.playbook-voice-list__label {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 500;
}

.playbook-voice-list--avoid .playbook-voice-list__label {
  color: var(--fg-3);
}

.playbook-voice-list__sample {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-style: italic;
  font-weight: 300;
  line-height: 1.5;
  color: var(--fg);
}

.playbook-voice-list--avoid .playbook-voice-list__sample {
  color: var(--fg-2);
}

/* === VISUAL SYSTEM === */
.playbook-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--gold-border);
}

.playbook-visual__col {
  padding: var(--pad);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.playbook-visual__col:not(:last-child) {
  border-right: 1px solid var(--gold-border);
}

.playbook-visual__sample {
  margin: 0;
  line-height: 1.1;
}

.playbook-visual__sample--display {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 300;
  color: var(--fg);
}

.playbook-visual__sample--body {
  font-family: var(--font-body);
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  font-weight: 400;
  color: var(--fg);
}

.playbook-visual__meta {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--fg-3);
  text-transform: uppercase;
}

/* === SWATCHES === */
.playbook-swatches {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.playbook-swatch {
  display: grid;
  grid-template-columns: 56px 1fr;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(201, 169, 110, 0.15);
}

.playbook-swatch:last-child {
  border-bottom: none;
}

.playbook-swatch__chip {
  width: 56px;
  height: 32px;
  border: 1px solid var(--gold-border);
}

.playbook-swatch__chip--bg   { background: var(--bg); }
.playbook-swatch__chip--bg2  { background: var(--bg-2); }
.playbook-swatch__chip--bg3  { background: var(--bg-3); }
.playbook-swatch__chip--fg   { background: var(--fg); }
.playbook-swatch__chip--gold { background: var(--gold); }

.playbook-swatch__meta {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.playbook-swatch__name {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--fg);
}

.playbook-swatch__hex {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--fg-3);
  font-family: var(--font-body);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .playbook-nav__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
  }

  .playbook-nav__list {
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
  }

  .playbook-do-dont {
    grid-template-columns: 1fr;
  }

  .playbook-voice-list li {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .playbook-visual {
    grid-template-columns: 1fr;
  }

  .playbook-visual__col:not(:last-child) {
    border-right: none;
    border-bottom: 1px solid var(--gold-border);
  }
}

@media (max-width: 480px) {
  .playbook-nav__list {
    gap: 0.5rem 1rem;
  }

  .playbook-nav__link {
    font-size: 0.7rem;
    letter-spacing: 0.12em;
  }
}

/* === PRINT === */
@media print {
  .playbook-nav,
  .playbook-hero,
  .footer {
    display: none !important;
  }

  html, body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .playbook-section,
  .playbook-section--manifesto {
    background: #ffffff !important;
    color: #000000 !important;
    border-top: 1px solid #c9a96e !important;
    page-break-inside: avoid;
  }

  .principles__label,
  .principle__num,
  .playbook-voice-list__label,
  .technology__label,
  .playbook-visual__meta {
    color: #8a7449 !important;
  }

  .principle,
  .principle__title,
  .playbook-section__title,
  .technology__title,
  .playbook-visual__sample,
  .playbook-voice-list__sample,
  .playbook-section__manifesto {
    color: #000000 !important;
  }

  .principle__desc,
  .playbook-section__lead p,
  .technology__desc,
  .playbook-voice-list__sample,
  .playbook-swatch__name {
    color: #222222 !important;
  }

  .principle,
  .playbook-do-dont,
  .playbook-visual {
    background: #ffffff !important;
    border-color: #c9a96e !important;
  }

  .playbook-section__inner {
    gap: 1.5rem;
  }

  a {
    color: #000000;
    text-decoration: none;
  }
}