/* ====================================================
   Golden Age Hub — Zensical Custom Stylesheet
   Elevates the default Material theme with a premium,
   narrative-document aesthetic.
   ==================================================== */

/* ---------- Tokens & brand palette ---------- */
:root {
  --ga-teal-dark:    #00695c;
  --ga-teal:         #009688;
  --ga-teal-light:   #b2dfdb;
  --ga-teal-subtle:  #e0f2f1;
  --ga-indigo:       #3f51b5;
  --ga-indigo-light: #e8eaf6;
  --ga-gold:         #ffd54f;
  --ga-text:         #1a1a2e;
  --ga-muted:        #546e7a;
  --ga-surface:      #f8fafb;
  --ga-border:       #e0e7ec;
  --ga-radius:       12px;
  --ga-radius-sm:    6px;
  --ga-shadow-sm:    0 1px 4px rgba(0,0,0,.07);
  --ga-shadow:       0 4px 20px rgba(0,0,0,.10);
  --ga-shadow-lg:    0 12px 48px rgba(0,0,0,.14);
  --ga-font-body:    "Inter", "Roboto", -apple-system, sans-serif;
  --ga-font-head:    "Inter", "Roboto", -apple-system, sans-serif;
}

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---------- Base typography ---------- */
.md-content .md-typeset,
.md-typeset {
  font-family: var(--ga-font-body) !important;
  font-size: 1.0rem;
  line-height: 1.85;
  color: var(--ga-text);
}

.md-typeset h1 {
  font-family: var(--ga-font-head);
  font-weight: 800;
  font-size: 2.5rem;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--ga-teal-dark);
  border-bottom: 3px solid var(--ga-teal-light);
  padding-bottom: .5rem;
  margin-bottom: 1.5rem;
}

.md-typeset h2 {
  font-family: var(--ga-font-head);
  font-weight: 700;
  font-size: 1.65rem;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--ga-teal-dark);
  margin-top: 2.5rem;
}

.md-typeset h3 {
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--ga-text);
  margin-top: 1.75rem;
}

/* Give paragraphs a bit more breathing room */
.md-typeset p {
  margin-bottom: 1.25rem;
}

/* Lead / opening paragraph style — wrap in a div.lead in markdown */
.md-typeset .lead p,
.md-typeset p.lead {
  font-size: 1.175rem;
  font-weight: 400;
  color: var(--ga-muted);
  line-height: 1.75;
  margin-bottom: 1.75rem;
  border-left: 4px solid var(--ga-teal);
  padding-left: 1.25rem;
}

/* ---------- Navigation / header ---------- */
.md-header {
  background: linear-gradient(135deg, #004d40 0%, #00695c 60%, #00897b 100%) !important;
  box-shadow: 0 2px 16px rgba(0,0,0,.18) !important;
}

.md-header__title {
  font-family: var(--ga-font-head);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

/* Nav tabs */
.md-tabs {
  background: rgba(0,0,0,.18) !important;
}

.md-tabs__link--active,
.md-tabs__link:hover {
  border-bottom: 2px solid var(--ga-gold) !important;
  color: #fff !important;
  opacity: 1 !important;
}

/* ---------- Sidebar ---------- */
.md-sidebar .md-nav__title {
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ga-teal-dark);
}

.md-nav__item .md-nav__link--active {
  color: var(--ga-teal-dark) !important;
  font-weight: 600;
}

/* ---------- Content area width ---------- */
.md-content {
  max-width: 880px;
}

/* ---------- Hero banner on index page ---------- */
.ga-hero {
  background: linear-gradient(135deg, #004d40 0%, #00695c 55%, #00796b 100%);
  color: #fff;
  border-radius: var(--ga-radius);
  padding: 3rem 2.5rem;
  margin: 1.5rem 0 2.5rem;
  position: relative;
  overflow: hidden;
}

.ga-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.ga-hero h1,
.ga-hero p,
.ga-hero strong {
  color: #fff !important;
  border: none !important;
}

.ga-hero h1 {
  font-size: 2.75rem !important;
  margin-bottom: .75rem !important;
  padding-bottom: 0 !important;
  border-bottom: none !important;
}

.ga-hero .ga-hero__sub {
  font-size: 1.2rem;
  opacity: .88;
  line-height: 1.6;
  max-width: 680px;
  margin-bottom: 0;
}

/* ---------- Three-pillar card grid ---------- */
.ga-pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.ga-pillar {
  background: #fff;
  border: 1px solid var(--ga-border);
  border-radius: var(--ga-radius);
  padding: 1.5rem;
  box-shadow: var(--ga-shadow-sm);
  transition: box-shadow .2s, transform .2s;
}

.ga-pillar:hover {
  box-shadow: var(--ga-shadow);
  transform: translateY(-3px);
}

.ga-pillar__icon {
  font-size: 2rem;
  margin-bottom: .75rem;
  display: block;
}

.ga-pillar h3 {
  font-weight: 700;
  font-size: 1rem;
  color: var(--ga-teal-dark) !important;
  margin: 0 0 .5rem !important;
}

.ga-pillar p {
  font-size: .9rem;
  color: var(--ga-muted);
  margin: 0;
  line-height: 1.6;
}

/* ---------- Portal card grid ---------- */
.ga-portals {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

.ga-portal {
  background: #fff;
  border: 1px solid var(--ga-border);
  border-radius: var(--ga-radius);
  padding: 1.75rem;
  box-shadow: var(--ga-shadow-sm);
  text-decoration: none !important;
  color: var(--ga-text) !important;
  transition: box-shadow .2s, transform .2s;
  display: block;
}

.ga-portal:hover {
  box-shadow: var(--ga-shadow);
  transform: translateY(-3px);
  border-color: var(--ga-teal);
}

.ga-portal__icon {
  font-size: 2.25rem;
  display: block;
  margin-bottom: .9rem;
}

.ga-portal h3 {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ga-teal-dark) !important;
  margin: 0 0 .5rem !important;
}

.ga-portal__role {
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--ga-teal);
  font-weight: 600;
  margin-bottom: .5rem;
  display: block;
}

.ga-portal p {
  font-size: .9rem;
  color: var(--ga-muted);
  margin: 0;
  line-height: 1.6;
}

/* ---------- Stat / milestone bar ---------- */
.ga-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 2rem 0;
}

.ga-stat {
  background: var(--ga-teal-subtle);
  border-radius: var(--ga-radius-sm);
  padding: .9rem 1rem;
  flex: 1;
  min-width: 175px;
  text-align: center;
}

.ga-stat__value {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--ga-teal-dark);
  line-height: 1;
  white-space: nowrap;
}

.ga-stat__label {
  display: block;
  font-size: .78rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ga-muted);
  margin-top: .3rem;
  font-weight: 500;
}

/* ---------- Quote / callout pull-quote ---------- */
.ga-quote {
  border-left: 4px solid var(--ga-teal);
  background: var(--ga-teal-subtle);
  border-radius: 0 var(--ga-radius-sm) var(--ga-radius-sm) 0;
  padding: 1.25rem 1.5rem;
  margin: 2rem 0;
  font-size: 1.05rem;
  color: var(--ga-teal-dark);
  font-style: italic;
}

/* ---------- Step / timeline list ---------- */
.ga-steps {
  counter-reset: ga-step;
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.ga-steps li {
  counter-increment: ga-step;
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 1rem;
  align-items: start;
  padding: .85rem 0;
  border-bottom: 1px solid var(--ga-border);
}

.ga-steps li:last-child { border-bottom: none; }

.ga-steps li::before {
  content: counter(ga-step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background: var(--ga-teal);
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
  flex-shrink: 0;
  margin-top: .1rem;
}

/* ---------- Admonitions — richer styling ---------- */
.md-typeset .admonition,
.md-typeset details {
  border-radius: var(--ga-radius-sm) !important;
  box-shadow: var(--ga-shadow-sm) !important;
  border-left-width: 4px !important;
}

.md-typeset .admonition.note,
.md-typeset details.note { border-left-color: var(--ga-teal) !important; }

.md-typeset .admonition.warning,
.md-typeset details.warning { border-left-color: #f57c00 !important; }

/* ---------- Code blocks ---------- */
.md-typeset code {
  background: var(--ga-surface);
  border: 1px solid var(--ga-border);
  border-radius: 4px;
  padding: .1em .38em;
  font-size: .875em;
}

.md-typeset pre > code {
  border: none;
  padding: 0;
  background: transparent;
}

.highlight pre {
  border-radius: var(--ga-radius-sm) !important;
}

/* ---------- Tables ---------- */
.md-typeset table:not([class]) {
  border-radius: var(--ga-radius-sm);
  overflow: hidden;
  box-shadow: var(--ga-shadow-sm);
  font-size: .9rem;
}

.md-typeset table:not([class]) th {
  background: var(--ga-teal-dark);
  color: #fff;
  font-weight: 600;
  letter-spacing: .03em;
}

.md-typeset table:not([class]) tr:nth-child(even) {
  background: var(--ga-surface);
}

/* ---------- Footer ---------- */
.md-footer {
  background: #004d40 !important;
}

/* ---------- Search ---------- */
.md-search__input {
  border-radius: 24px !important;
}

/* ---------- Dark mode overrides ---------- */
[data-md-color-scheme="slate"] {
  --ga-text: #e2e8f0;
  --ga-muted: #94a3b8;
  --ga-surface: #1e293b;
  --ga-border: #334155;
  --ga-teal-subtle: rgba(0,150,136,.12);
}

[data-md-color-scheme="slate"] .ga-pillar,
[data-md-color-scheme="slate"] .ga-portal {
  background: #1e293b;
}

[data-md-color-scheme="slate"] .ga-stat {
  background: rgba(0,150,136,.15);
}