/* =====================================================================
   DIGITAL FLOW — service, about and note pages
   Brand System 2026, dark foundation, LOW expression mode.
   Small text uses 66% cream on carbon (about 6.5:1), not the fainter token.
   Reading, hierarchy and conversion first. No scroll effects, no canvas,
   no ambient motion. Colours and type come from tokens.css.
   ===================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background: var(--df-surface-deep, #181917);
  color: var(--df-text-primary, #F2EEE6);
  font-family: var(--df-font-sans, "IBM Plex Sans", sans-serif);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }

a { color: var(--df-signal-green, #B6FF2E); text-underline-offset: 3px; }
a:hover { color: var(--df-text-headline, #F2EEE6); }

:focus-visible {
  outline: 2px solid var(--df-signal-green, #B6FF2E);
  outline-offset: 3px;
  border-radius: 4px;
}

.pg-skip {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--df-signal-green, #B6FF2E); color: #1C1D1B;
  padding: 10px 14px; border-radius: 6px; font-weight: 600; text-decoration: none;
}
.pg-skip:focus { top: 12px; }

/* ----------------------------------------------------------- header */
.pg-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(28, 29, 27, 0.97);
  border-bottom: 1px solid var(--df-border-subtle, rgba(244, 240, 231, 0.08));
}
.pg-header__inner {
  max-width: 1120px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 10px clamp(16px, 4vw, 32px);
  min-height: 64px;
}
.pg-brand {
  display: inline-flex; align-items: center; gap: 10px; min-height: 44px;
  font-weight: 700; font-size: 1rem; letter-spacing: 0.035em; text-transform: uppercase;
  color: var(--df-text-headline, #F2EEE6); text-decoration: none; white-space: nowrap;
}
.pg-nav { display: flex; align-items: center; gap: 4px; }
.pg-nav a {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px;
  color: var(--df-text-muted, rgba(244, 240, 231, 0.76));
  font-size: 0.95rem; font-weight: 500; text-decoration: none; border-radius: 6px;
}
.pg-nav a:hover { color: var(--df-text-headline, #F2EEE6); background: rgba(244, 240, 231, 0.06); }
.pg-nav a[aria-current="page"] { color: var(--df-text-headline, #F2EEE6); box-shadow: inset 0 -2px 0 var(--df-signal-green, #B6FF2E); border-radius: 0; }
.pg-header__actions { display: flex; align-items: center; gap: 12px; }

.lang { display: inline-flex; align-items: center; gap: 2px; }
.lang__opt {
  display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 8px;
  font-family: var(--df-font-mono, monospace); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em;
  color: rgba(244, 240, 231, 0.66); text-decoration: none; border-radius: 6px;
}
.lang__opt:hover { color: var(--df-text-headline, #F2EEE6); }
.lang__opt--active { color: var(--df-text-headline, #F2EEE6); }
.lang__flag { width: 18px; height: 12px; border-radius: 2px; display: block; }

.pg-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 22px;
  background: var(--df-signal-green, #B6FF2E); color: #1C1D1B;
  font-weight: 600; font-size: 1rem; text-decoration: none;
  border: 1px solid var(--df-signal-green, #B6FF2E); border-radius: 8px;
  transition: background-color 0.15s ease;
}
.pg-btn:hover { background: #cbfb60; color: #1C1D1B; }
.pg-btn--small { min-height: 44px; padding: 0 16px; font-size: 0.9rem; white-space: nowrap; }

/* Mobile menu: a native disclosure, no script. */
.pg-menu { display: none; border-top: 1px solid var(--df-border-subtle, rgba(244, 240, 231, 0.08)); }
.pg-menu summary {
  list-style: none; cursor: pointer; min-height: 48px;
  display: flex; align-items: center; padding: 0 clamp(16px, 4vw, 32px);
  font-family: var(--df-font-mono, monospace); font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--df-text-muted, rgba(244, 240, 231, 0.76));
}
.pg-menu summary::-webkit-details-marker { display: none; }
.pg-menu summary::after { content: "+"; margin-left: auto; font-size: 1.1rem; }
.pg-menu[open] summary::after { content: "–"; }
.pg-menu nav { display: grid; padding: 0 clamp(16px, 4vw, 32px) 12px; }
.pg-menu nav a {
  display: flex; align-items: center; min-height: 48px;
  color: var(--df-text-primary, #F2EEE6); text-decoration: none; font-weight: 500;
  border-top: 1px solid var(--df-border-subtle, rgba(244, 240, 231, 0.08));
}
.pg-menu nav a[aria-current="page"] { color: var(--df-signal-green, #B6FF2E); }

@media (max-width: 860px) {
  .pg-nav { display: none; }
  .pg-menu { display: block; }
}
@media (max-width: 520px) {
  .pg-header .pg-btn--small { display: none; }
  .pg-brand { font-size: 0.92rem; }
}

/* ------------------------------------------------------------- main */
.pg-main { padding: clamp(28px, 6vw, 72px) clamp(16px, 4vw, 32px) clamp(48px, 8vw, 96px); }
.pg-article { max-width: 840px; margin: 0 auto; }

.pg-crumbs {
  font-family: var(--df-font-mono, monospace); font-size: 0.75rem; letter-spacing: 0.06em;
  color: rgba(244, 240, 231, 0.66); margin: 0 0 20px;
}
.pg-crumbs a { color: var(--df-text-muted, rgba(244, 240, 231, 0.76)); text-decoration: none; }
.pg-crumbs a:hover { color: var(--df-text-headline, #F2EEE6); }

.pg-eyebrow, .pg-step__label {
  font-family: var(--df-font-mono, monospace); font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--df-signal-green, #B6FF2E); margin: 0 0 14px;
}

.pg-hero { padding-bottom: clamp(28px, 5vw, 48px); border-bottom: 1px solid var(--df-border, rgba(244, 240, 231, 0.12)); }
.pg-hero h1 {
  margin: 0 0 20px; color: var(--df-text-headline, #F2EEE6);
  font-size: clamp(2rem, 5.4vw, 3.25rem); line-height: 1.08; font-weight: 700; letter-spacing: -0.02em;
  text-wrap: balance;
}
.pg-lead { margin: 0 0 28px; font-size: clamp(1.1rem, 2.2vw, 1.3rem); line-height: 1.55; color: var(--df-text-secondary, #F4F0E7); max-width: 62ch; }
.pg-hero__actions { margin: 0; }
.pg-meta { margin: 0; font-family: var(--df-font-mono, monospace); font-size: 0.8rem; color: rgba(244, 240, 231, 0.66); }

.pg-section { padding: clamp(32px, 5vw, 56px) 0 0; }
.pg-section h2 {
  margin: 0 0 16px; color: var(--df-text-headline, #F2EEE6);
  font-size: clamp(1.45rem, 3.2vw, 2rem); line-height: 1.2; font-weight: 600; letter-spacing: -0.01em;
  text-wrap: balance;
}
.pg-section h3 { margin: 0 0 8px; color: var(--df-text-headline, #F2EEE6); font-size: 1.1rem; line-height: 1.3; font-weight: 600; }
.pg-section p { margin: 0 0 16px; color: var(--df-text-muted, rgba(244, 240, 231, 0.76)); max-width: 68ch; }
.pg-section p strong, .pg-list strong { color: var(--df-text-headline, #F2EEE6); font-weight: 600; }
.pg-intro { font-size: 1.1rem; color: var(--df-text-secondary, #F4F0E7) !important; }
.pg-note { font-size: 0.92rem; color: rgba(244, 240, 231, 0.66) !important; }

.pg-list { margin: 0 0 16px; padding-left: 1.2em; color: var(--df-text-muted, rgba(244, 240, 231, 0.76)); max-width: 68ch; }
.pg-list li { margin: 8px 0; }
.pg-list li::marker { color: var(--df-signal-green, #B6FF2E); }

/* Symptoms: the buyer's own sentences, set apart from our explanations. */
.pg-symptoms__list { list-style: none; margin: 20px 0 20px; padding: 0; display: grid; gap: 10px; }
.pg-symptoms__list li {
  padding: 14px 18px; border-left: 3px solid var(--df-signal-yellow, #F2FF24);
  background: var(--df-surface-card, #252623); border-radius: 0 8px 8px 0;
  color: var(--df-text-primary, #F2EEE6); font-size: 1.05rem; line-height: 1.5;
}

.pg-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin: 20px 0; }
.pg-cards--two { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.pg-card {
  padding: 20px; background: var(--df-surface-card, #252623);
  border: 1px solid var(--df-border, rgba(244, 240, 231, 0.12)); border-radius: 12px;
}
.pg-card p { margin: 0; font-size: 0.98rem; }
.pg-role {
  font-family: var(--df-font-mono, monospace); font-size: 0.78rem !important; letter-spacing: 0.04em;
  color: var(--df-signal-green, #B6FF2E) !important; margin: 0 0 10px !important;
}
.pg-card--link { display: block; text-decoration: none; transition: border-color 0.15s ease, background-color 0.15s ease; }
.pg-card--link:hover { border-color: var(--df-signal-green, #B6FF2E); background: var(--df-surface-card-hover, #2E2F2B); }
.pg-card--link h3::after { content: " →"; color: var(--df-signal-green, #B6FF2E); }

/* Evidence: every item says what kind of evidence it is. */
.pg-evidence__list { display: grid; gap: 14px; margin: 20px 0; }
.pg-evidence__item {
  padding: 20px; background: var(--df-surface-dossier, #20211E);
  border: 1px solid var(--df-border, rgba(244, 240, 231, 0.12)); border-radius: 12px;
}
.pg-evidence__item p { margin: 0; }
.pg-tag {
  display: inline-block; margin: 0 0 12px !important; padding: 3px 9px; border-radius: 4px;
  font-family: var(--df-font-mono, monospace); font-size: 0.7rem !important; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase; border: 1px solid;
}
.pg-tag--own { color: var(--df-signal-green, #B6FF2E) !important; border-color: rgba(182, 255, 46, 0.4); background: rgba(182, 255, 46, 0.08); }
.pg-tag--anon { color: var(--df-signal-yellow, #F2FF24) !important; border-color: rgba(242, 255, 36, 0.4); background: rgba(242, 255, 36, 0.07); }
.pg-tag--illustrative { color: var(--df-text-secondary, #F4F0E7) !important; border-color: rgba(244, 240, 231, 0.35); background: rgba(244, 240, 231, 0.06); }

.pg-steps { list-style: none; counter-reset: step; margin: 20px 0; padding: 0; display: grid; gap: 4px; }
.pg-steps li { counter-increment: step; position: relative; padding: 16px 0 16px 56px; border-top: 1px solid var(--df-border-subtle, rgba(244, 240, 231, 0.08)); }
.pg-steps li::before {
  content: counter(step, decimal-leading-zero); position: absolute; left: 0; top: 18px;
  font-family: var(--df-font-mono, monospace); font-size: 0.85rem; font-weight: 600; color: var(--df-signal-green, #B6FF2E);
}
.pg-steps p { margin: 0; }

.pg-columns { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin: 20px 0; }
.pg-column { padding: 20px; border: 1px solid var(--df-border, rgba(244, 240, 231, 0.12)); border-radius: 12px; }
.pg-column .pg-list { margin: 0; font-size: 0.98rem; }

.pg-facts { margin: 20px 0; display: grid; gap: 0; }
.pg-facts > div { display: grid; grid-template-columns: minmax(140px, 220px) 1fr; gap: 16px; padding: 12px 0; border-top: 1px solid var(--df-border-subtle, rgba(244, 240, 231, 0.08)); }
.pg-facts dt { font-family: var(--df-font-mono, monospace); font-size: 0.8rem; letter-spacing: 0.04em; color: rgba(244, 240, 231, 0.66); padding-top: 3px; }
.pg-facts dd { margin: 0; color: var(--df-text-primary, #F2EEE6); }
@media (max-width: 520px) { .pg-facts > div { grid-template-columns: 1fr; gap: 2px; } }

.pg-step { border-top: 1px solid var(--df-border-subtle, rgba(244, 240, 231, 0.08)); margin-top: clamp(28px, 4vw, 44px); }
.pg-step__label { color: rgba(244, 240, 231, 0.66); margin-bottom: 8px; }
.pg-article--note .pg-section h2 { font-size: clamp(1.3rem, 2.8vw, 1.7rem); }

/* ---------------------------------------------------------- contact */
.pg-contact {
  margin-top: clamp(40px, 6vw, 72px); padding: clamp(24px, 4vw, 40px);
  background: var(--df-surface-card, #252623);
  border: 1px solid var(--df-border-active, rgba(244, 240, 231, 0.28)); border-radius: 16px;
}
.pg-contact h2 { margin: 0 0 12px; font-size: clamp(1.45rem, 3.2vw, 2rem); line-height: 1.2; font-weight: 600; color: var(--df-text-headline, #F2EEE6); }
.pg-contact p { margin: 0 0 16px; color: var(--df-text-muted, rgba(244, 240, 231, 0.76)); max-width: 62ch; }
.pg-contact__ways { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 20px; margin: 24px 0 20px; }
.pg-contact__label {
  margin: 0 0 6px !important; font-family: var(--df-font-mono, monospace); font-size: 0.72rem;
  letter-spacing: 0.12em; text-transform: uppercase; color: rgba(244, 240, 231, 0.66) !important;
}
.pg-contact__value { display: inline-flex; align-items: center; min-height: 44px; font-size: 1.15rem; font-weight: 600; color: var(--df-text-headline, #F2EEE6); text-decoration: none; overflow-wrap: anywhere; }
.pg-contact__value:hover { color: var(--df-signal-green, #B6FF2E); }
.pg-contact__sub { display: flex; align-items: center; min-height: 44px; font-size: 0.95rem; }
.pg-contact .pg-note { margin: 0; }

/* ----------------------------------------------------------- footer */
.pg-footer { background: var(--df-surface-footer, #141412); border-top: 1px solid var(--df-border-subtle, rgba(244, 240, 231, 0.08)); padding: clamp(28px, 4vw, 44px) clamp(16px, 4vw, 32px); }
.pg-footer__inner { max-width: 1120px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.pg-footer__identity { display: grid; gap: 4px; align-content: start; color: var(--df-text-muted, rgba(244, 240, 231, 0.76)); }
.pg-footer__brand { font-weight: 700; letter-spacing: 0.035em; text-transform: uppercase; color: var(--df-text-headline, #F2EEE6); }
.pg-footer__nav { display: grid; align-content: start; }
.pg-footer__nav a { display: flex; align-items: center; min-height: 44px; color: var(--df-text-muted, rgba(244, 240, 231, 0.76)); text-decoration: none; }
.pg-footer__nav a:hover { color: var(--df-text-headline, #F2EEE6); }
.pg-footer__label { font-family: var(--df-font-mono, monospace); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(244, 240, 231, 0.66); padding: 12px 0 4px; }
.pg-footer__legal { max-width: 1120px; margin: 24px auto 0; padding-top: 16px; border-top: 1px solid var(--df-border-subtle, rgba(244, 240, 231, 0.08)); font-size: 0.82rem; color: rgba(244, 240, 231, 0.66); }
.pg-footer__legal a { color: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}