/* ============================================================
   Mayo AI Literacy Club — site stylesheet
   ============================================================
   Sibling of the Mercurius marketing site (marketing/styles.css):
   same type system, spacing, and component language — with the
   club's own forest-green + gold palette (carried over from the
   original club site's identity).

   Brand tokens, mobile-first layout, single file. No preprocessor,
   no framework. Read top-to-bottom:
     1. Reset + tokens (custom props)
     2. Base typography
     3. Layout primitives (container, sections)
     4. Header / nav (with mobile toggle)
     5. Components (buttons, cards, stats, ticker, board, groups,
        topics, resources, events, blog, form, sponsor)
     6. Footer
     7. Responsive breakpoints
   ============================================================ */

/* --------- Reset (minimal — modern browsers only) --------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button { font: inherit; }

/* --------- Brand tokens --------- */
:root {
  /* Palette — club identity: forest green + gold (from the original
     site), set on the light, premium base shared with Mercurius. */
  --forest: #0E2A18;        /* headings, footer — the "navy" role   */
  --green: #1E8A52;         /* emerald — gradient stop 1            */
  --gold: #C9921A;          /* club gold — graphics on dark         */
  --gold-text: #B88515;     /* gradient stop 2 — contrast-safe      */
  --gold-deep: #8F6410;     /* small text accents on light bg       */
  --gold-light: #E0B050;    /* gold on dark surfaces (footer, strip)*/
  --sage: #DDEBDD;          /* soft tint — the "lavender" role      */
  --bg: #F4F6F2;
  --ink: #1B231D;
  --ink-soft: #49584C;
  --ink-muted: #66756A;
  --surface: #ffffff;
  --border: #DFE7DD;
  --border-soft: #EAF0E8;

  /* Gradient — used sparingly on CTAs, accents, headline spans */
  --gradient: linear-gradient(135deg, var(--green) 0%, var(--gold-text) 100%);
  --gradient-soft: linear-gradient(135deg,
    rgba(30, 138, 82, 0.12) 0%,
    rgba(201, 146, 26, 0.12) 100%
  );

  /* Typography — same system as Mercurius */
  --font-display: "Playfair Display", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Type scale (mobile defaults; bumped on desktop below) */
  --fs-display: clamp(2.4rem, 6vw + 0.5rem, 4.5rem);
  --fs-h2:      clamp(1.8rem, 3vw + 1rem, 2.75rem);
  --fs-h3:      1.25rem;
  --fs-lede:    clamp(1.05rem, 0.8vw + 0.9rem, 1.2rem);
  --fs-body:    1rem;
  --fs-small:   0.875rem;
  --fs-eyebrow: 0.75rem;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* Shadows — soft, low-opacity, forest-tinted */
  --shadow-card: 0 1px 2px rgba(14, 42, 24, 0.04),
                 0 4px 16px rgba(14, 42, 24, 0.05);
  --shadow-cta: 0 6px 24px rgba(30, 138, 82, 0.30);

  /* Layout */
  --container-max: 1200px;
  --header-h: 72px;
}

/* --------- Typography --------- */
.display,
h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--forest);
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin: 0 0 var(--space-4);
}

h1, .display {
  font-size: var(--fs-display);
  font-weight: 700;
}

h2, .section-title {
  font-size: var(--fs-h2);
  font-weight: 700;
  letter-spacing: -0.015em;
}

h3 {
  font-size: var(--fs-h3);
  font-weight: 600;
  font-family: var(--font-body);   /* sans for card subheads —
                                       keeps the serif rare + premium */
  color: var(--forest);
  letter-spacing: -0.005em;
}

p { margin: 0 0 var(--space-4); }
p:last-child { margin-bottom: 0; }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin: 0 0 var(--space-4);
}

.lede {
  font-size: var(--fs-lede);
  color: var(--ink-soft);
  max-width: 560px;
  margin: 0 0 var(--space-6);
}

.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

/* --------- Skip link --------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: var(--space-3) var(--space-4);
  background: var(--forest);
  color: #fff;
  text-decoration: none;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 100;
}
.skip-link:focus {
  left: 0;
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

/* --------- Layout primitives --------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.section {
  padding: var(--space-8) 0;
}

.section-soft {
  background: linear-gradient(180deg,
    rgba(221, 235, 221, 0.45) 0%,
    transparent 100%
  );
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-7);
}

.section-head .eyebrow { text-align: center; }

.section-sub {
  font-size: var(--fs-lede);
  color: var(--ink-soft);
  margin-top: var(--space-3);
}

/* --------- Header --------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 246, 242, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--forest);
  min-width: 0;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.brand-name-accent {
  background: var(--gradient);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
}

/* Mobile nav toggle — the original club site had one; Mercurius's
   site doesn't. Students are on phones, so the club keeps it. */
.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
}
.nav-toggle:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--forest);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  display: none;
  align-items: center;
  gap: var(--space-5);
}

/* Mobile: nav becomes a dropdown panel under the header */
.site-nav.is-open {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  padding: var(--space-4) var(--space-5) var(--space-5);
  gap: var(--space-2);
}
.site-nav.is-open a {
  padding: var(--space-3) var(--space-2);
  border-radius: var(--radius-sm);
}
.site-nav.is-open a:hover { background: var(--bg); }

.site-nav a {
  text-decoration: none;
  font-size: var(--fs-small);
  color: var(--ink-soft);
  font-weight: 500;
  transition: color 0.15s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--forest);
}

.site-nav a[aria-current="page"] {
  color: var(--forest);
  font-weight: 600;
}
.site-nav a[aria-current="page"]::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 4px;
  background: var(--gradient);
  border-radius: 2px;
}
.site-nav.is-open a[aria-current="page"]::after { display: none; }

.cta-pill {
  padding: 0.5rem 1rem;
  background: var(--gradient);
  color: #fff !important;
  border-radius: var(--radius-pill);
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  text-align: center;
}
.cta-pill:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-cta);
}

/* --------- Buttons --------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--shadow-cta);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(30, 138, 82, 0.38);
}

.btn-ghost {
  background: transparent;
  color: var(--forest);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--surface);
  border-color: var(--green);
  color: var(--green);
}

.btn-large {
  padding: 1.05rem 2rem;
  font-size: 1.05rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

/* --------- HERO (homepage) --------- */
.hero {
  position: relative;
  padding: var(--space-7) 0 var(--space-8);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px circle at 85% 20%, rgba(201, 146, 26, 0.13), transparent 60%),
    radial-gradient(720px circle at 8% 90%, rgba(30, 138, 82, 0.12), transparent 60%);
  z-index: 0;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-7);
  align-items: center;
}

.hero-copy {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.hero-copy .cta-row { justify-content: center; }

/* Meeting chip — populated live from events-data.json */
.meeting-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 1rem;
  margin-bottom: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--ink-soft);
}
.meeting-chip .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
}

/* --------- Stats strip — forest + gold, a nod to the original
   dark site. Numbers are hand-edited in index.html. --------- */
.stats-bar {
  background: var(--forest);
  padding: var(--space-6) 0;
}
.stats-bar .container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  text-align: center;
}
.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--gold-light);
  line-height: 1.1;
}
.stat-label {
  display: block;
  font-size: var(--fs-small);
  color: rgba(244, 246, 242, 0.65);
  margin-top: var(--space-1);
  letter-spacing: 0.04em;
}

/* --------- Quote ticker (Member Voices marquee) --------- */
.ticker-wrap {
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  background: var(--surface);
  padding: var(--space-4) 0;
  overflow: hidden;
}
.ticker-label {
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-deep);
  text-align: center;
  margin-bottom: var(--space-3);
}
.ticker-outer {
  position: relative;
  width: 100%;
  overflow: hidden;
  /* fade edges */
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.ticker-track {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
  white-space: nowrap;
  padding-left: var(--space-6);
  animation: ticker-scroll 42s linear infinite;
  will-change: transform;
}
.ticker-outer:hover .ticker-track { animation-play-state: paused; }
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .ticker-track {
    animation: none;
    white-space: normal;
    flex-wrap: wrap;
    justify-content: center;
  }
  .ticker-item-dupe { display: none; }
}
.ticker-item {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.02rem;
  color: var(--ink-soft);
}
.ticker-item .ticker-author {
  font-family: var(--font-body);
  font-style: normal;
  font-size: var(--fs-small);
  color: var(--ink-muted);
  margin-left: var(--space-2);
}
.ticker-sep { color: var(--gold); }

/* --------- Cards / grids (shared) --------- */
.grid-3 {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--sage);
  box-shadow: 0 4px 8px rgba(14, 42, 24, 0.04),
              0 16px 36px rgba(14, 42, 24, 0.08);
}

.card-title { margin-bottom: var(--space-3); }

.card-body {
  color: var(--ink-soft);
  font-size: var(--fs-body);
  margin: 0;
}

/* --------- TOC cards (homepage "what we do") --------- */
.toc-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

.toc-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.toc-card:hover {
  transform: translateY(-3px);
  border-color: var(--sage);
  box-shadow: 0 4px 8px rgba(14, 42, 24, 0.04),
              0 16px 36px rgba(14, 42, 24, 0.08);
}
.toc-card:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

.toc-card h3 { margin-bottom: var(--space-3); }
.toc-card p { color: var(--ink-soft); margin: 0 0 var(--space-4); }
.toc-card .toc-arrow {
  font-weight: 600;
  font-size: var(--fs-small);
  color: var(--green);
}
.toc-card .toc-arrow::after {
  content: " →";
  transition: transform 0.2s ease;
  display: inline-block;
}
.toc-card:hover .toc-arrow::after { transform: translateX(3px); }

/* --------- Board (about.html) --------- */
.board-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

.board-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  text-align: center;
}

.board-avatar {
  width: 104px;
  height: 104px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto var(--space-4);
  border: 3px solid var(--sage);
  background: var(--bg);
}
.board-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.board-role {
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: var(--space-2);
}

.board-card h3 { margin-bottom: var(--space-2); }
.board-card p { color: var(--ink-soft); font-size: var(--fs-small); margin: 0; }

/* --------- 3 Groups (about.html) --------- */
.groups-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

.group-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  position: relative;
}
.group-card.is-goal { border-color: var(--green); }
.group-card.is-goal::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--gradient);
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.group-badge {
  display: inline-block;
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-deep);
  background: var(--gradient-soft);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-4);
}

.group-card h3 { margin-bottom: var(--space-2); }
.group-desc { color: var(--ink-soft); margin-bottom: var(--space-4); }

.group-traits {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-2);
  font-size: var(--fs-small);
  color: var(--ink-soft);
}

/* Trait markers — colored dots (no / partial / yes) */
.group-traits li {
  position: relative;
  padding-left: 1.15rem;
}
.group-traits li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ink-muted);
}
.group-traits li.trait-no::before  { background: #C25548; }
.group-traits li.trait-mid::before { background: var(--gold); }
.group-traits li.trait-yes::before { background: var(--green); }

.groups-callout {
  margin-top: var(--space-6);
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  border-radius: var(--radius-md);
  padding: var(--space-6);
}
.groups-callout p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--fs-lede);
  color: var(--forest);
}

/* --------- Topics (topics.html) — numbered like Mercurius steps --------- */
.topics-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

.topic-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}

.topic-num {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
          background-clip: text;
  color: transparent;
  margin-bottom: var(--space-3);
  line-height: 1;
}

.topic-card h3 { margin-bottom: var(--space-3); }
.topic-card p { color: var(--ink-soft); margin: 0; }

/* --------- Resources (topics.html) --------- */
.resource-category { margin-bottom: var(--space-7); }
.resource-category:last-child { margin-bottom: 0; }

.resource-category-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.resource-category-head h3 { margin: 0; font-size: 1.15rem; }
.resource-category-head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.resource-list {
  display: grid;
  gap: var(--space-4);
}

.resource-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.resource-card:hover {
  transform: translateY(-2px);
  border-color: var(--green);
  box-shadow: var(--shadow-card);
}
.resource-card:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

.resource-type {
  display: inline-block;
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: var(--space-2);
}
.resource-card h4 {
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--forest);
  margin: 0 0 var(--space-2);
}
.resource-card p {
  color: var(--ink-soft);
  font-size: var(--fs-small);
  margin: 0;
}
.resource-arrow {
  color: var(--green);
  font-weight: 600;
  flex-shrink: 0;
}

/* --------- Events (events.html) --------- */
.meeting-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  display: grid;
  gap: var(--space-5);
}

.meeting-info {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.meeting-label {
  display: block;
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-deep);
  margin-bottom: var(--space-1);
}
.meeting-value {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--forest);
}

.meeting-note {
  border-top: 1px solid var(--border-soft);
  padding-top: var(--space-5);
  color: var(--ink-soft);
  font-size: var(--fs-small);
  margin: 0;
}

.events-list {
  display: grid;
  gap: var(--space-5);
}

.event-card {
  display: flex;
  gap: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}
.event-card.is-next { border-color: var(--green); }

.event-date {
  flex-shrink: 0;
  width: 64px;
  text-align: center;
  align-self: flex-start;
  background: var(--gradient-soft);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-2);
}
.event-month {
  display: block;
  font-size: var(--fs-eyebrow);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-deep);
}
.event-day {
  display: block;
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--forest);
  line-height: 1.1;
}

.event-tag {
  display: inline-block;
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: var(--space-2);
}
.event-tag.is-past { color: var(--ink-muted); }

.event-details h3 { margin-bottom: var(--space-2); }
.event-details p { color: var(--ink-soft); font-size: var(--fs-small); }

.event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--fs-small);
  color: var(--ink-muted);
  margin-top: var(--space-3);
}
.event-meta a {
  color: var(--green);
  font-weight: 600;
  text-decoration: none;
}
.event-meta a:hover { text-decoration: underline; }

.events-note {
  text-align: center;
  color: var(--ink-muted);
  font-size: var(--fs-small);
  margin-top: var(--space-6);
}
.events-note a { color: var(--green); }

/* --------- Blog (blog.html / blog-post.html) --------- */
.blog-list {
  display: grid;
  gap: var(--space-5);
  max-width: 820px;
  margin: 0 auto;
}

.blog-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}
.blog-card:hover {
  transform: translateY(-3px);
  border-color: var(--sage);
  box-shadow: 0 4px 8px rgba(14, 42, 24, 0.04),
              0 16px 36px rgba(14, 42, 24, 0.08);
}
.blog-card:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
}

.blog-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-small);
  margin-bottom: var(--space-3);
}

.blog-category {
  display: inline-block;
  font-size: var(--fs-eyebrow);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-deep);
  background: var(--gradient-soft);
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
}

.blog-date, .blog-author { color: var(--ink-muted); }

.blog-card h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: var(--space-3);
}
.blog-card p { color: var(--ink-soft); margin-bottom: var(--space-4); }

.blog-read-more {
  font-weight: 600;
  font-size: var(--fs-small);
  color: var(--green);
}

.blog-empty {
  text-align: center;
  color: var(--ink-muted);
}

/* Article page */
.post-container { max-width: 720px; }

.post-header { margin-bottom: var(--space-7); }
.post-header h1 {
  font-size: clamp(1.9rem, 3.5vw + 0.8rem, 3rem);
  margin: var(--space-4) 0;
}
.post-summary {
  font-size: var(--fs-lede);
  color: var(--ink-soft);
  font-style: italic;
}

.post-body {
  font-size: 1.06rem;
  line-height: 1.75;
  color: var(--ink);
}
.post-body p { margin-bottom: var(--space-5); }
.post-body h2 {
  font-size: 1.5rem;
  margin: var(--space-7) 0 var(--space-4);
}
.post-body strong { color: var(--forest); }

.post-footer {
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-soft);
}

.back-link {
  display: inline-block;
  text-decoration: none;
  color: var(--green);
  font-weight: 600;
  font-size: var(--fs-small);
  margin-bottom: var(--space-5);
}
.back-link:hover { text-decoration: underline; }

/* --------- Sponsor --------- */
.sponsor-strip { text-align: center; }
.sponsor-card {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-6) var(--space-7);
  background: var(--surface);
  border: 1px solid rgba(201, 146, 26, 0.35);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.sponsor-tier {
  font-size: var(--fs-eyebrow);
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold-deep);
}
.sponsor-card img {
  height: 56px;
  width: auto;
  /* The SVG was authored for a dark page — flatten it to ink so it
     reads on the light card regardless of its native colors. */
  filter: brightness(0) opacity(0.78);
}
.sponsor-note {
  margin-top: var(--space-5);
  font-size: var(--fs-small);
  color: var(--ink-muted);
}
.sponsor-note a { color: var(--green); }

/* --------- Mercurius app strip (homepage + mercurius.html) --------- */
.app-card {
  position: relative;
  overflow: hidden;
  background: var(--forest);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-6);
  color: rgba(244, 246, 242, 0.85);
}
.app-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(420px circle at 90% 10%, rgba(201, 146, 26, 0.22), transparent 60%),
    radial-gradient(420px circle at 5% 95%, rgba(30, 138, 82, 0.25), transparent 60%);
  pointer-events: none;
}
.app-card > * { position: relative; }

.app-card .eyebrow { color: var(--gold-light); }
.app-card h2, .app-card h3 { color: #fff; }
.app-card p { color: rgba(244, 246, 242, 0.75); }

.app-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 1rem;
  background: rgba(201, 146, 26, 0.15);
  border: 1px solid rgba(201, 146, 26, 0.4);
  border-radius: var(--radius-pill);
  color: var(--gold-light);
  font-size: var(--fs-small);
  font-weight: 600;
  margin-bottom: var(--space-5);
}

/* Mercurius product logo — presented like an app icon */
.app-logo {
  width: 84px;
  height: 84px;
  border-radius: 20px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
  margin-bottom: var(--space-5);
}

.merc-page-logo {
  width: 128px;
  height: 128px;
  border-radius: 28px;
  box-shadow: 0 12px 40px rgba(14, 42, 24, 0.28);
  margin: 0 auto var(--space-5);
}

/* --------- Forms (join.html) --------- */
.join-box {
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-6);
  box-shadow: var(--shadow-card);
  max-width: 720px;
  margin: 0 auto var(--space-7);
}
.join-note {
  margin-top: var(--space-4);
  font-size: var(--fs-small);
  color: var(--ink-muted);
}

.contact-box { max-width: 720px; margin: 0 auto; }

.contact-form {
  display: grid;
  gap: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}

.form-row {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}

.form-group { display: grid; gap: var(--space-2); }

.form-group label {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--forest);
}
.form-optional { font-weight: 400; color: var(--ink-muted); }

.form-group input,
.form-group select,
.form-group textarea {
  font: inherit;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  width: 100%;
}
.form-group input:focus-visible,
.form-group select:focus-visible,
.form-group textarea:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 1px;
  border-color: var(--green);
}

.hidden-field { position: absolute; left: -9999px; }

.form-success {
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--green);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-6);
}
.form-success[hidden] { display: none; }
.success-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--gradient);
  color: #fff;
  font-size: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}

/* --------- Page hero (detail pages) --------- */
.page-hero {
  padding: var(--space-7) 0 var(--space-6);
  text-align: center;
  position: relative;
}
.page-hero .container { max-width: 820px; }
.page-hero h1 {
  font-size: clamp(2rem, 4vw + 0.8rem, 3.4rem);
  margin-bottom: var(--space-4);
}
.page-hero .lede { margin: 0 auto; }

/* --------- Final CTA --------- */
.cta-section {
  padding: var(--space-9) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px circle at 50% 50%,
      rgba(201, 146, 26, 0.10), transparent 60%);
  pointer-events: none;
}
.cta-inner { position: relative; max-width: 720px; }
.cta-sub {
  font-size: var(--fs-lede);
  color: var(--ink-soft);
  margin-bottom: var(--space-6);
}
.fineprint {
  font-size: var(--fs-small);
  color: var(--ink-muted);
  margin-top: var(--space-5);
}

/* --------- "Next" cross-link strip --------- */
.next-strip {
  background: var(--surface);
  border-top: 1px solid var(--border-soft);
  padding: var(--space-7) 0;
}
.next-strip .container {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: flex-start;
  justify-content: space-between;
}
.next-strip .eyebrow { margin: 0; }
.next-strip h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
}
.next-strip-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--green);
  font-weight: 600;
  padding: 0.6rem 1.25rem;
  border: 1px solid var(--green);
  border-radius: var(--radius-pill);
  transition: background 0.15s ease, color 0.15s ease;
}
.next-strip-link:hover {
  background: var(--green);
  color: #fff;
}
.next-strip-link:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
}

/* --------- Fade-in on scroll --------- */
.fade-in {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .fade-in { opacity: 1; transform: none; }
}

/* --------- Footer --------- */
.site-footer {
  background: var(--forest);
  color: rgba(244, 246, 242, 0.7);
  padding: var(--space-7) 0;
  font-size: var(--fs-small);
}
.site-footer .brand { color: #fff; }
.site-footer .brand-name { color: #fff; }
.site-footer .brand-name-accent {
  background: none;
  -webkit-background-clip: initial;
          background-clip: initial;
  color: var(--gold-light);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  align-items: flex-start;
}

.footer-tagline {
  margin-top: var(--space-3);
  font-style: italic;
  color: rgba(244, 246, 242, 0.55);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
}
.footer-nav a {
  color: rgba(244, 246, 242, 0.7);
  text-decoration: none;
  transition: color 0.15s ease;
}
.footer-nav a:hover { color: #fff; }

.footer-copy { margin: 0; }

/* ============================================================
   Responsive breakpoints
   ============================================================ */

/* Tablet — 720px+ */
@media (min-width: 720px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .toc-grid { grid-template-columns: repeat(3, 1fr); }
  .topics-grid { grid-template-columns: repeat(2, 1fr); }
  .groups-grid { grid-template-columns: repeat(3, 1fr); }
  .board-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar .container { grid-template-columns: repeat(4, 1fr); }
  .form-row { grid-template-columns: 1fr 1fr; }
  .meeting-info { grid-template-columns: repeat(4, 1fr); }

  .next-strip .container {
    flex-direction: row;
    align-items: center;
  }

  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .cta-row .btn { padding: 0.95rem 1.75rem; }
}

/* Desktop — 1024px+ */
@media (min-width: 1024px) {
  .container { padding: 0 var(--space-6); }
  .section { padding: var(--space-9) 0; }

  .nav-toggle { display: none; }
  .site-nav { display: flex; }

  .hero-grid {
    gap: var(--space-8);
  }
  .hero { padding: var(--space-8) 0 var(--space-9); }

  .board-grid { grid-template-columns: repeat(4, 1fr); }
  .topics-grid { grid-template-columns: repeat(3, 1fr); }
}