/* ============================================================
   AI6 Guidance — Shared Stylesheet
   Extends AI That Works design system tokens.
   ============================================================ */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

:root {
  --color-blue:         #5488A6;
  --color-green-accent: #5CC97B;
  --color-green-action: #2E7D32;
  --color-red:          #F44444;
  --color-blue-light:   #AFCBF8;
  --color-slate:        #3B5563;
  --color-white:        #FFFFFF;
  --color-black:        #000000;

  --bg-default:         #FFFFFF;
  --bg-alt:             #F7F8FA;
  --bg-credibility:     #2E7D32;
  --bg-credentials:     #5488A6;
  --bg-panel:           #3B5563;

  --fg-1:               #1A1A1A;
  --fg-2:               #333333;
  --fg-3:               #555555;
  --fg-muted:           #888888;
  --fg-reversed:        rgba(255,255,255,0.88);
  --fg-reversed-strong: #FFFFFF;
  --border-rule:        #E4E7EB;

  --font-family:        "Inter", "Segoe UI", Arial, sans-serif;

  --font-size-eyebrow:  0.75rem;
  --font-size-body:     1rem;
  --font-size-lead:     1.125rem;
  --font-size-h3:       1.25rem;
  --font-size-h2:       1.5rem;
  --font-size-h1:       2rem;
  --font-size-display:  3rem;

  --line-tight:   1.2;
  --line-snug:    1.4;
  --line-normal:  1.65;

  --tracking-eyebrow: 0.1em;
  --tracking-tight:   -0.01em;

  --space-xs:   0.5rem;
  --space-sm:   0.75rem;
  --space-md:   1.25rem;
  --space-lg:   2rem;
  --space-xl:   3rem;
  --space-2xl:  4.5rem;

  --radius-sm:   0.25rem;
  --radius-md:   0.375rem;
  --radius-lg:   0.5rem;
  --radius-pill: 999px;

  --card-radius:       0.5rem;
  --card-padding:      1.5rem;
  --card-shadow:       0 2px 8px rgba(0,0,0,0.08);
  --card-shadow-hover: 0 6px 18px rgba(0,0,0,0.12);

  --ease:         cubic-bezier(0.2,0.7,0.2,1);
  --duration-fast: 120ms;
  --duration:      180ms;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  font-family: var(--font-family);
  color: var(--fg-2);
  background: var(--bg-default);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: var(--line-normal);
  font-size: 16px;
}

/* ---- Layout ---- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.section        { padding: var(--space-2xl) 0; }
.section--alt   { padding: var(--space-2xl) 0; background: var(--bg-alt); }
.section--slate { padding: var(--space-2xl) 0; background: var(--bg-panel); }
.section--green { padding: var(--space-2xl) 0; background: var(--bg-credibility); }

/* ---- Typography ---- */
.eyebrow {
  display: block;
  font-size: var(--font-size-eyebrow);
  font-weight: 700;
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 0.5rem;
}
.eyebrow--rev  { color: var(--color-blue-light); }
.eyebrow--dark { color: var(--color-black); }
.eyebrow--red  { color: var(--color-red); }

h1 {
  font-size: var(--font-size-h1);
  font-weight: 800;
  line-height: var(--line-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--fg-1);
  margin-bottom: var(--space-md);
}
h1.rev { color: var(--fg-reversed-strong); }

h2 {
  font-size: var(--font-size-h2);
  font-weight: 800;
  line-height: var(--line-snug);
  color: var(--fg-1);
  margin-bottom: var(--space-sm);
}
h2.rev { color: var(--fg-reversed-strong); }

h3 {
  font-size: var(--font-size-h3);
  font-weight: 700;
  line-height: var(--line-snug);
  color: var(--fg-1);
  margin-bottom: 0.4rem;
}
h3.rev { color: var(--fg-reversed-strong); }

p {
  font-size: var(--font-size-body);
  line-height: var(--line-normal);
  color: var(--fg-2);
  max-width: 65ch;
}
p.lead {
  font-size: var(--font-size-lead);
  color: var(--fg-1);
  max-width: 60ch;
}
p.rev  { color: var(--fg-reversed); max-width: 60ch; }
p.wide { max-width: none; }

/* ---- Nav ---- */
.site-nav {
  background: var(--bg-panel);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  position: sticky;
  top: 0;
  z-index: 200;
}
.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  height: 56px;
}
.nav-brand {
  color: var(--fg-reversed-strong);
  font-weight: 700;
  font-size: 0.875rem;
  text-decoration: none;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.nav-brand em {
  font-style: normal;
  color: var(--color-green-accent);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
}
.nav-links a {
  color: var(--fg-reversed);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color var(--duration-fast);
}
.nav-links a:hover, .nav-links a.active { color: var(--fg-reversed-strong); }
.nav-links .nav-active { color: var(--color-green-accent) !important; }

/* ---- Buttons ---- */
.btn {
  font-family: var(--font-family);
  font-size: 0.875rem;
  font-weight: 700;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: opacity var(--duration-fast) var(--ease);
  border: 2px solid transparent;
  line-height: 1.2;
}
.btn:hover { opacity: 0.88; }
.btn:focus-visible { outline: 2px solid var(--color-blue); outline-offset: 2px; }

.btn--primary  { background: var(--color-green-action); color: #fff; border-color: var(--color-green-action); }
.btn--secondary { background: transparent; color: var(--color-green-action); border-color: var(--color-green-action); }
.btn--primary-rev  { background: #fff; color: var(--color-green-action); border-color: #fff; }
.btn--secondary-rev { background: transparent; color: #fff; border-color: #fff; }
.btn--sm { padding: 0.45rem 1rem; font-size: 0.8rem; }

/* WhatsApp nav link */
.nav-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #25D366;
  text-decoration: none;
  transition: opacity var(--duration-fast);
}
.nav-whatsapp:hover { opacity: 0.75; }
.nav-whatsapp svg { flex-shrink: 0; }

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: var(--space-lg);
}

/* ---- Callout ---- */
.callout {
  background: rgba(92,201,123,0.12);
  border-left: 4px solid var(--color-green-accent);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  font-weight: 600;
  font-size: var(--font-size-lead);
  color: var(--fg-1);
  line-height: var(--line-snug);
  margin: var(--space-lg) 0;
}

/* ---- Cards ---- */
.card {
  background: var(--bg-default);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--duration) var(--ease);
}
.card:hover { box-shadow: var(--card-shadow-hover); }

.card--slate {
  background: var(--bg-panel);
  box-shadow: none;
}
.card--slate h3 { color: var(--fg-reversed-strong); }
.card--slate p  { color: var(--fg-reversed); }

.card--border {
  background: var(--bg-default);
  border: 1px solid var(--border-rule);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  box-shadow: none;
}

/* ---- Pills ---- */
.pill {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-pill);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1.4;
}
.pill--blue  { background: rgba(84,136,166,0.14); color: var(--color-blue); }
.pill--green { background: rgba(46,125,50,0.12);  color: var(--color-green-action); }
.pill--red   { background: rgba(244,68,68,0.12);  color: var(--color-red); }
.pill--slate { background: rgba(59,85,99,0.12);   color: var(--color-slate); }

/* ---- Steps ---- */
.steps { display: flex; flex-direction: column; gap: var(--space-md); }
.step {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  border-left: 3px solid var(--color-blue);
  padding-left: var(--space-md);
}
.step__num {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-blue);
  min-width: 2rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.step__title {
  font-size: var(--font-size-h3);
  font-weight: 700;
  color: var(--fg-1);
  margin-bottom: 0.25rem;
}
.step__body { font-size: var(--font-size-body); color: var(--fg-2); line-height: var(--line-snug); }

/* ---- Splits ---- */
.split {
  display: grid;
  gap: var(--space-lg);
  align-items: start;
}
.split--55-45 { grid-template-columns: 55fr 45fr; }
.split--50-50 { grid-template-columns: 1fr 1fr; }
.split--33-67 { grid-template-columns: 1fr 2fr; }

/* ---- Grid ---- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-md); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-md); }

/* ---- Stats row ---- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  text-align: center;
}
.stat-num {
  display: block;
  font-size: var(--font-size-display);
  font-weight: 800;
  color: var(--fg-reversed-strong);
  line-height: 1;
  letter-spacing: var(--tracking-tight);
}
.stat-num--green { color: var(--color-green-accent); }
.stat-num--red   { color: var(--color-red); }
.stat-lbl {
  display: block;
  font-size: 0.875rem;
  color: var(--fg-reversed);
  margin-top: 0.5rem;
  line-height: var(--line-snug);
}

/* ---- Deadline banner ---- */
.deadline-banner {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  background: rgba(244,68,68,0.06);
  border: 1px solid rgba(244,68,68,0.25);
  border-left: 4px solid var(--color-red);
  border-radius: var(--radius-sm);
  padding: var(--space-md) var(--space-lg);
  margin-top: var(--space-lg);
}
.deadline-date {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-red);
  white-space: nowrap;
  line-height: 1.2;
}
.deadline-text {
  font-size: var(--font-size-body);
  color: var(--fg-1);
  font-weight: 500;
  line-height: var(--line-snug);
  max-width: 65ch;
}
.deadline-text strong { color: var(--color-red); }

/* ---- RACI Table ---- */
.raci-wrap { overflow-x: auto; margin-top: var(--space-lg); border-radius: var(--card-radius); }
.raci-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 700px;
}
.raci-table th {
  background: var(--bg-panel);
  color: var(--fg-reversed-strong);
  font-weight: 700;
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.78rem;
  letter-spacing: 0.03em;
}
.raci-table th:first-child { border-radius: var(--radius-lg) 0 0 0; }
.raci-table th:last-child  { border-radius: 0 var(--radius-lg) 0 0; }
.raci-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-rule);
  vertical-align: middle;
  color: var(--fg-2);
  background: var(--bg-default);
}
.raci-table tr:last-child td { border-bottom: none; }
.raci-table .row-label { font-weight: 600; color: var(--fg-1); }
.raci-cell {
  display: inline-block;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}
.raci-A { background: var(--color-green-action); color: #fff; }
.raci-R { background: var(--color-blue);         color: #fff; }
.raci-C { background: rgba(84,136,166,0.15);     color: var(--color-blue); }
.raci-I { background: #EAECEF; color: var(--fg-3); }

/* ---- Checklist ---- */
.checklist { display: flex; flex-direction: column; gap: 0; margin-top: var(--space-md); }
.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border-rule);
  transition: background var(--duration-fast);
}
.checklist-item:last-child { border-bottom: none; }
.checklist-item.is-checked .check-label { color: var(--fg-muted); text-decoration: line-through; text-decoration-color: var(--color-green-accent); }

.check-input {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  min-width: 22px;
  border: 2px solid var(--border-rule);
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-top: 2px;
  transition: all var(--duration-fast);
  position: relative;
  background: #fff;
}
.check-input:checked {
  background: var(--color-green-action);
  border-color: var(--color-green-action);
}
.check-input:checked::after {
  content: "";
  position: absolute;
  top: 3px; left: 6px;
  width: 6px; height: 10px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg);
}
.check-input:focus-visible { outline: 2px solid var(--color-blue); outline-offset: 2px; }
.check-input:hover:not(:checked) { border-color: var(--color-blue); }

.check-label {
  font-size: var(--font-size-body);
  color: var(--fg-1);
  font-weight: 500;
  line-height: var(--line-snug);
  flex: 1;
  cursor: pointer;
}
.check-sub {
  font-size: 0.85rem;
  color: var(--fg-3);
  font-weight: 400;
  margin-top: 0.25rem;
  display: block;
}

/* ---- Progress bar ---- */
.progress-wrap { margin-top: var(--space-md); }
.progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}
.progress-label { font-size: 0.85rem; color: var(--fg-3); }
.progress-pct   { font-size: 0.9rem; font-weight: 700; color: var(--color-green-action); }
.progress-bar   { height: 6px; background: var(--border-rule); border-radius: 3px; overflow: hidden; }
.progress-fill  { height: 100%; background: var(--color-green-action); border-radius: 3px; transition: width 0.3s var(--ease); width: 0%; }

/* ---- Doc cards ---- */
.doc-card {
  border: 1px solid var(--border-rule);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  background: var(--bg-default);
}
.doc-card-num {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-blue);
  margin-bottom: 0.4rem;
}
.doc-card h3 { margin-bottom: 0.4rem; color: var(--fg-1); }
.doc-card p  { font-size: 0.9rem; color: var(--fg-3); max-width: none; margin-bottom: var(--space-sm); }
.doc-card-action {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-green-action);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}
.doc-card-action svg { flex-shrink: 0; }

/* ---- Gap cards ---- */
.gap-card {
  background: rgba(244,68,68,0.05);
  border: 1px solid rgba(244,68,68,0.2);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
}
.gap-card h3 { color: var(--color-red); margin-bottom: 0.4rem; }
.gap-card p  { font-size: 0.9rem; color: var(--fg-2); max-width: none; }

/* ---- Pillar nav cards ---- */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}
.pillar-card {
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  border: 1px solid var(--border-rule);
  background: var(--bg-default);
  text-decoration: none;
  display: block;
  transition: box-shadow var(--duration) var(--ease);
}
.pillar-card:hover { box-shadow: var(--card-shadow-hover); }
.pillar-card--muted { opacity: 0.65; pointer-events: none; }

.pillar-num {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-blue);
  line-height: 1;
  display: block;
  margin-bottom: 0.4rem;
}
.pillar-num--muted { color: var(--fg-muted); }
.pillar-title { font-size: var(--font-size-h3); font-weight: 700; color: var(--fg-1); margin-bottom: 0.35rem; }
.pillar-title--muted { color: var(--fg-3); }
.pillar-body  { font-size: 0.875rem; color: var(--fg-3); line-height: var(--line-snug); }
.pillar-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-sm);
  flex-wrap: wrap;
  gap: 0.4rem;
}
.pillar-link { font-size: 0.85rem; font-weight: 700; color: var(--color-green-action); }
.pillar-soon { font-size: 0.75rem; color: var(--fg-muted); }

/* ---- Breadcrumb ---- */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--fg-reversed);
  padding: var(--space-md) 0;
}
.breadcrumb a { color: var(--fg-reversed); text-decoration: none; }
.breadcrumb a:hover { color: var(--fg-reversed-strong); }
.breadcrumb-sep { color: rgba(255,255,255,0.35); }
.breadcrumb-current { color: var(--fg-reversed-strong); font-weight: 600; }

/* ---- Pillar hero ---- */
.pillar-hero { background: var(--bg-panel); padding: var(--space-xl) 0 var(--space-2xl); }
.pillar-hero-inner { max-width: 800px; }
.pillar-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.pillar-hero-num {
  font-size: 4rem;
  font-weight: 800;
  color: var(--color-blue);
  line-height: 1;
  letter-spacing: var(--tracking-tight);
}
.pillar-of { font-size: 1rem; font-weight: 600; color: rgba(255,255,255,0.4); align-self: flex-end; padding-bottom: 0.5rem; }
.pillar-hero h1 { color: var(--fg-reversed-strong); max-width: 16ch; }
.pillar-objective {
  font-size: var(--font-size-lead);
  color: var(--fg-reversed);
  max-width: 55ch;
  margin-top: var(--space-sm);
  line-height: var(--line-normal);
}

/* ---- Footer ---- */
.site-footer {
  background: var(--fg-1);
  padding: var(--space-xl) 0;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.site-footer p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
  max-width: none;
}
.site-footer a { color: rgba(255,255,255,0.65); }

/* ---- Divider ---- */
hr.rule { border: none; border-top: 1px solid var(--border-rule); margin: var(--space-xl) 0; }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .pillar-grid { grid-template-columns: 1fr; }
  .split--55-45, .split--50-50, .split--33-67 { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: 1fr; gap: var(--space-lg); }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .container { padding: 0 var(--space-md); }
  h1 { font-size: 1.65rem; }
  .pillar-hero-num { font-size: 3rem; }
  .nav-links li:not(:last-child) { display: none; }
}

/* ---- Print ---- */
@media print {
  .site-nav, .cta-group, .site-footer, .nav-links { display: none !important; }
  .section, .section--alt, .section--slate, .section--green { padding: 1.5rem 0; }
  .pillar-hero { padding: 1.5rem 0; }
  a.btn { display: none; }
  .raci-wrap { overflow: visible; }
  .raci-table { font-size: 0.75rem; }
}


/* ── Nav dropdown ────────────────────────────────────────── */
.nav-has-dropdown { position: relative; }
.nav-dropdown-trigger {
  display: flex !important;
  align-items: center;
  gap: 0.25rem;
  color: var(--fg-reversed) !important;
  font-size: 0.85rem !important;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--duration-fast);
  cursor: pointer;
}
.nav-dropdown-trigger:hover { color: var(--fg-reversed-strong) !important; }
.nav-dropdown-trigger.nav-active { color: var(--color-green-accent) !important; }
.nav-caret {
  font-size: 0.6rem;
  display: inline-block;
  transition: transform var(--duration-fast);
  line-height: 1;
  margin-top: 1px;
}
.nav-has-dropdown:hover .nav-caret { transform: rotate(180deg); }
.nav-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: #233240;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--card-radius);
  list-style: none;
  min-width: 250px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.4);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 140ms, transform 140ms;
  z-index: 400;
  overflow: hidden;
}
.nav-has-dropdown:hover .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.nav-dropdown li { border-bottom: 1px solid rgba(255,255,255,0.07); }
.nav-dropdown li:last-child { border-bottom: none; }
.nav-dropdown a {
  display: block;
  padding: 0.6rem 1.1rem;
  color: rgba(255,255,255,0.72) !important;
  font-size: 0.82rem !important;
  font-weight: 500;
  text-decoration: none;
  transition: background 100ms, color 100ms;
}
.nav-dropdown a:hover { background: rgba(255,255,255,0.07); color: #fff !important; }
.nav-dropdown a.nav-active { color: var(--color-green-accent) !important; font-weight: 600; }