/* The Passo Agency — site-wide styles
 *
 * Design system tokens lifted from passo/design-system. Fraunces (display)
 * and Inter (body/UI) are loaded via Google Fonts in each page <head>.
 * Paper / ink palette only; rosa (#E5326A) is reserved for the live-data
 * dot on the topstrip; forest (#3D6B4A) is unused on marketing surfaces.
 */

:root {
  /* Paper tones */
  --paper-bg:     #F2EFE7;
  --paper-sunken: #ECE8DD;
  --paper-card:   #E4DFD2;
  --paper-rule:   #D8D2C2;

  /* Ink tones */
  --ink-primary:   #1A1A18;
  --ink-body:      #3A3A36;
  --ink-secondary: #6B6B63;
  --ink-label:     #9A9A8E;

  /* Accents — used sparingly */
  --rosa:   #E5326A;
  --forest: #3D6B4A;

  /* Type */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Layout */
  --page-max: 1280px;
  --page-pad: 48px;
  --r-pill:   999px;
  --r-2:      4px;
  --r-1:      2px;
}

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper-bg);
  color: var(--ink-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'tnum' 1;
}

a { color: inherit; }
img { max-width: 100%; display: block; }

/* ─── Layout shell ─────────────────────────────────────────────────────── */

.page { max-width: var(--page-max); margin: 0 auto; padding: 0 var(--page-pad); }

/* ─── Top strip ────────────────────────────────────────────────────────── */

.topstrip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-label);
  border-bottom: 1px solid var(--paper-rule);
}

.topstrip .live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.topstrip .live-dot {
  width: 6px;
  height: 6px;
  background: var(--rosa);
  border-radius: 50%;
  display: inline-block;
  animation: passo-pulse 2.4s ease-in-out infinite;
}

@keyframes passo-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}

@media (prefers-reduced-motion: reduce) {
  .topstrip .live-dot { animation: none; }
}

/* ─── Nav ──────────────────────────────────────────────────────────────── */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  border-bottom: 1px solid var(--paper-rule);
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--ink-primary);
  text-decoration: none;
}

.brand-mark {
  width: 36px;
  height: 29px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  color: var(--ink-body);
}

.nav-links a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: border-color 0.15s ease;
}

.nav-links a:hover { border-color: var(--paper-rule); }
.nav-links a.active { color: var(--ink-primary); border-color: var(--ink-primary); }

.nav-cta {
  display: inline-block;
  padding: 8px 18px;
  border: 1px solid var(--ink-primary);
  border-radius: var(--r-pill);
  color: var(--ink-primary);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

.nav-cta:hover { background: var(--ink-primary); color: var(--paper-bg); }

/* ─── Buttons ──────────────────────────────────────────────────────────── */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--ink-primary);
  color: var(--paper-bg);
  border: 1px solid var(--ink-primary);
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 500;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.btn-primary:hover { opacity: 0.85; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: transparent;
  color: var(--ink-primary);
  border: 1px solid var(--paper-rule);
  border-radius: var(--r-pill);
  font-size: 15px;
  font-weight: 500;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.btn-secondary:hover { border-color: var(--ink-primary); }

/* ─── Eyebrow / labels ─────────────────────────────────────────────────── */

.eyebrow {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-label);
  margin-bottom: 16px;
}

/* ─── Display / body type ──────────────────────────────────────────────── */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--ink-primary);
  margin: 0;
}

h1 { font-size: 64px; line-height: 1.05; }
h2 { font-size: 40px; line-height: 1.15; letter-spacing: -0.015em; }
h3 { font-size: 22px; line-height: 1.25; letter-spacing: -0.01em; }
h4 { font-size: 18px; line-height: 1.3; letter-spacing: -0.005em; }

h1 em, h2 em, h3 em { font-style: italic; }

p { margin: 0 0 16px; color: var(--ink-body); }

p.lede {
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-body);
  max-width: 720px;
}

strong { color: var(--ink-primary); font-weight: 500; }

code {
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 0.9em;
  color: var(--ink-primary);
  background: var(--paper-sunken);
  padding: 1px 6px;
  border-radius: var(--r-1);
}

/* ─── Hero (homepage + interior) ───────────────────────────────────────── */

.hero {
  padding: 80px 0 64px;
  border-bottom: 1px solid var(--paper-rule);
}

.hero-interior { padding: 24px 0 48px; }

.hero h1 { max-width: 920px; margin-bottom: 22px; }

.hero-sub {
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-body);
  max-width: 640px;
  margin: 0 0 32px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.hero-meta {
  margin-top: 24px;
  font-size: 13px;
  color: var(--ink-secondary);
}

/* ─── Sections ─────────────────────────────────────────────────────────── */

section.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--paper-rule);
}

section.section:last-of-type { border-bottom: none; }

/* ─── Pillars ──────────────────────────────────────────────────────────── */

.pillar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 8px;
}

.pillar {
  padding: 28px;
  background: var(--paper-card);
  border: 1px solid var(--paper-rule);
}

.pillar-num {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--ink-secondary);
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}

.pillar h3 { margin-bottom: 12px; }
.pillar p { font-size: 15px; margin: 0; line-height: 1.55; color: var(--ink-body); }

/* ─── Timeline ─────────────────────────────────────────────────────────── */

.timeline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 16px;
}

.timeline-step {
  border-left: 1px solid var(--paper-rule);
  padding-left: 22px;
}

.timeline-step .day {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--ink-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.timeline-step h4 { margin-bottom: 10px; }
.timeline-step p { font-size: 15px; margin: 0; color: var(--ink-body); }

/* ─── Data sources rows ────────────────────────────────────────────────── */

.data-row {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  padding: 22px 0;
  border-bottom: 1px solid var(--paper-rule);
  align-items: baseline;
}

.data-row:last-child { border-bottom: none; }

.data-source {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 20px;
  color: var(--ink-primary);
}

.data-purpose {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-body);
}

/* ─── Crumbs ───────────────────────────────────────────────────────────── */

.crumbs {
  padding: 24px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-label);
  text-transform: uppercase;
}

.crumbs a { color: inherit; text-decoration: none; }
.crumbs a:hover { color: var(--ink-secondary); }
.crumbs span.sep { padding: 0 8px; }

/* ─── Article layout (interior pages with TOC) ─────────────────────────── */

.main-grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 56px;
  padding: 56px 0 80px;
}

.toc {
  position: sticky;
  top: 24px;
  align-self: start;
}

.toc h6 {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--ink-label);
  margin: 0 0 12px;
  text-transform: uppercase;
}

.toc ol {
  list-style: none;
  padding: 0;
  margin: 0;
  border-left: 1px solid var(--paper-rule);
}

.toc li a {
  display: block;
  padding: 6px 14px;
  font-size: 14px;
  color: var(--ink-body);
  text-decoration: none;
  border-left: 2px solid transparent;
  margin-left: -1px;
  line-height: 1.4;
}

.toc li a:hover { color: var(--ink-primary); }
.toc li.active a { color: var(--ink-primary); border-left-color: var(--ink-primary); font-weight: 500; }

article > section { margin-bottom: 48px; }
article h2 { font-size: 32px; margin-bottom: 14px; }
article h3 { font-size: 20px; margin: 26px 0 10px; }
article p, article li { font-size: 16px; line-height: 1.65; color: var(--ink-body); }
article ul { padding-left: 22px; margin: 0 0 16px; }
article li { margin-bottom: 6px; }

/* ─── Callout ──────────────────────────────────────────────────────────── */

.callout {
  margin: 24px 0;
  padding: 22px 26px;
  background: var(--paper-sunken);
  border: 1px solid var(--paper-rule);
}

.callout h4 { font-size: 17px; margin: 0 0 8px; }
.callout p { margin: 0; font-size: 14px; color: var(--ink-secondary); line-height: 1.55; }

/* ─── Field table (how-it-works) ───────────────────────────────────────── */

.field-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 22px;
  font-size: 14px;
}

.field-table th, .field-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--paper-rule);
  vertical-align: top;
}

.field-table th {
  color: var(--ink-label);
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--paper-sunken);
}

.field-table td.field {
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  color: var(--ink-primary);
  font-size: 13px;
  line-height: 1.5;
}

/* ─── Pact (data-privacy) ──────────────────────────────────────────────── */

.pact {
  margin: 48px 0 0;
  padding: 32px;
  background: var(--paper-card);
  border: 1px solid var(--paper-rule);
}

.pact-head { margin-bottom: 8px; }
.pact-head .eyebrow { margin-bottom: 8px; }
.pact-head h2 { font-size: 28px; margin-bottom: 12px; }

.pact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 24px;
}

.pact-col h3 {
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-label);
  font-family: var(--font-body);
  font-weight: 600;
  margin: 0 0 12px;
}

.pact-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--paper-rule);
}

.pact-col li {
  padding: 14px 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-body);
  border-bottom: 1px solid var(--paper-rule);
}

.pact-col li:last-child { border-bottom: none; }

/* ─── API card ─────────────────────────────────────────────────────────── */

.api-card {
  margin: 22px 0;
  border: 1px solid var(--paper-rule);
}

.api-head {
  padding: 16px 22px;
  background: var(--paper-sunken);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--paper-rule);
}

.api-head h3 { font-size: 19px; margin: 0; }

.api-body { padding: 20px 22px; }
.api-body p { margin: 0 0 12px; font-size: 15px; }
.api-body p:last-child { margin-bottom: 0; }

.label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-label);
  margin-right: 6px;
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  border: 1px solid var(--paper-rule);
  border-radius: var(--r-pill);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  background: var(--paper-bg);
}

/* ─── Pricing rows ─────────────────────────────────────────────────────── */

.shape {
  padding: 56px 0;
}

.shape-list {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px solid var(--paper-rule);
}

.shape-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 32px;
  padding: 24px 0;
  border-bottom: 1px solid var(--paper-rule);
  align-items: baseline;
}

.shape-row dt {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 19px;
  color: var(--ink-primary);
}

.shape-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-body);
}

/* ─── Coming-soon frame ────────────────────────────────────────────────── */

.coming-frame {
  max-width: 640px;
  padding: 96px 0 80px;
}

.coming-frame h1 { font-size: 56px; margin-bottom: 22px; }

.fineprint {
  margin-top: 28px;
  font-size: 13px;
  color: var(--ink-secondary);
}

.fineprint a { color: var(--ink-primary); }

/* ─── Footer ───────────────────────────────────────────────────────────── */

footer.site-foot {
  padding: 56px 0 56px;
  border-top: 1px solid var(--paper-rule);
  margin-top: 48px;
  font-size: 13px;
  color: var(--ink-secondary);
}

.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 36px;
}

.foot-brand {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 22px;
  color: var(--ink-primary);
  margin-bottom: 12px;
}

.foot-col h5 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-label);
  margin: 0 0 12px;
  font-weight: 600;
}

.foot-col ul { list-style: none; padding: 0; margin: 0; }
.foot-col li { margin-bottom: 8px; }
.foot-col a { color: var(--ink-body); text-decoration: none; border-bottom: 1px solid transparent; padding-bottom: 1px; }
.foot-col a:hover { border-bottom-color: var(--paper-rule); }

.foot-bottom {
  border-top: 1px solid var(--paper-rule);
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  color: var(--ink-label);
  font-size: 12px;
}

/* ─── Mobile ───────────────────────────────────────────────────────────── */

@media (max-width: 880px) {
  :root { --page-pad: 24px; }
  h1 { font-size: 44px; }
  h2 { font-size: 30px; }
  .hero { padding: 56px 0 48px; }
  .hero-sub { font-size: 17px; }
  .pillar-grid, .timeline, .pact-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .data-row, .shape-row { grid-template-columns: 1fr; gap: 8px; }
  .main-grid { grid-template-columns: 1fr; gap: 32px; padding: 32px 0 56px; }
  .toc { position: static; }
  .nav { flex-wrap: wrap; gap: 16px; }
  .nav-links { gap: 18px; flex-wrap: wrap; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 28px; }
  .foot-bottom { flex-direction: column; gap: 8px; }
  .coming-frame h1 { font-size: 38px; }
}

@media (max-width: 540px) {
  .foot-grid { grid-template-columns: 1fr; }
  .nav-cta { display: none; }
}
