/* ==========================================================================
   Catalyst Public Policy Advisors — site styles
   Inspired by santafe.edu navigation pattern; restrained editorial type.
   ========================================================================== */

:root {
  /* Palette — derived from existing Catalyst hero (deep navy + warm sand) */
  --ink:        #0e1a2b;   /* near-black navy used for nav + headings */
  --ink-soft:   #1f2d44;
  --bone:       #f6f2ec;   /* warm off-white page bg */
  --bone-2:     #ece6dc;   /* card bg / dividers */
  --sand:       #c9a96a;   /* warm accent (hover, underlines) */
  --sand-dark:  #a8884c;
  --rule:       #d8d2c7;
  --text:       #20242c;
  --muted:      #5a6577;
  --link:       #0e1a2b;
  --link-hover: #a8884c;

  --max:        1240px;
  --gutter:     clamp(1.25rem, 4vw, 3rem);

  /* Type scale */
  --serif: 'Source Serif 4', 'Source Serif Pro', Georgia, 'Times New Roman', serif;
  --sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;

  --step--1: clamp(0.82rem, 0.78rem + 0.2vw, 0.9rem);
  --step-0:  clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --step-1:  clamp(1.2rem, 1.1rem + 0.5vw, 1.4rem);
  --step-2:  clamp(1.6rem, 1.4rem + 1vw, 2rem);
  --step-3:  clamp(2.1rem, 1.7rem + 2vw, 3rem);
  --step-4:  clamp(2.8rem, 2.2rem + 3vw, 4.5rem);
}

/* ---------- reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.55;
  color: var(--text);
  background: var(--bone);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: var(--link); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--link-hover); }
button { font: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  color: var(--ink);
  margin: 0 0 0.6em;
  letter-spacing: -0.01em;
}
h1 { font-size: var(--step-4); font-weight: 500; letter-spacing: -0.02em; }
h2 { font-size: var(--step-3); font-weight: 500; letter-spacing: -0.015em; }
h3 { font-size: var(--step-2); }
h4 { font-size: var(--step-1); }
p  { margin: 0 0 1em; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

/* ---------- top bar / nav ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bone);
  border-bottom: 1px solid var(--rule);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1rem;
}
.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand img { width: 132px; height: auto; }
.brand-name { display: none; } /* logo image already includes wordmark */

/* Primary nav (santa-fe style: dark inset block) */
.primary-nav {
  background: var(--ink);
  border-radius: 4px;
}
.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: stretch;
}
.nav-item { position: relative; }
.nav-link, .nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.95rem 1.15rem;
  color: #fff;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: none;
  border: 0;
  border-radius: 4px;
  transition: background 0.18s ease, color 0.18s ease;
}
.nav-link:hover, .nav-toggle:hover,
.nav-link[aria-current="page"], .nav-toggle[aria-expanded="true"] {
  background: var(--ink-soft);
  color: var(--sand);
}
.nav-toggle .chev {
  width: 8px; height: 8px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.2s ease;
}
.nav-toggle[aria-expanded="true"] .chev { transform: rotate(-135deg) translateY(0); }

/* Dropdown */
.dropdown {
  position: absolute;
  top: calc(100% + 2px);
  left: 0;
  min-width: 280px;
  background: var(--ink);
  border-radius: 4px;
  padding: 0.5rem;
  display: none;
  box-shadow: 0 10px 30px rgba(14,26,43,0.18);
}
.nav-item.open .dropdown { display: block; }
.dropdown a {
  display: block;
  padding: 0.7rem 0.9rem;
  color: #fff;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  border-radius: 3px;
  transition: background 0.18s ease, color 0.18s ease;
}
.dropdown a:hover { background: var(--ink-soft); color: var(--sand); }
.dropdown a .label-sub {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sand);
  opacity: 0.85;
  margin-bottom: 0.15rem;
}

/* Mobile burger */
.burger {
  display: none;
  background: var(--ink);
  border: 0;
  border-radius: 4px;
  padding: 0.7rem 0.9rem;
  color: #fff;
}
.burger-bars {
  display: block;
  width: 22px; height: 2px;
  background: currentColor;
  position: relative;
}
.burger-bars::before, .burger-bars::after {
  content: ""; position: absolute; left: 0; width: 22px; height: 2px; background: currentColor;
}
.burger-bars::before { top: -7px; }
.burger-bars::after  { top: 7px; }

@media (max-width: 880px) {
  .burger { display: inline-flex; align-items: center; }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: var(--gutter);
    right: var(--gutter);
    margin-top: 0.5rem;
    display: none;
    padding: 0.5rem;
  }
  .primary-nav.open { display: block; }
  .nav-list { flex-direction: column; align-items: stretch; }
  .nav-link, .nav-toggle { width: 100%; justify-content: space-between; padding: 0.85rem 0.9rem; }
  .dropdown {
    position: static;
    display: none;
    box-shadow: none;
    padding-left: 0.5rem;
    margin-left: 0.5rem;
    border-left: 1px solid var(--ink-soft);
    border-radius: 0;
    min-width: 0;
  }
  .nav-item.open > .dropdown { display: block; }
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
  padding-block: clamp(3rem, 7vw, 6rem);
}
.hero-eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sand-dark);
  margin: 0 0 1.2rem;
}
.hero h1 { margin-bottom: 0.4em; }
.hero-lede {
  font-size: var(--step-1);
  color: var(--muted);
  max-width: 36ch;
  line-height: 1.45;
  margin-bottom: 1.8rem;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.8rem; }

.hero-image {
  position: relative;
  aspect-ratio: 5 / 4;
  overflow: hidden;
  border-radius: 6px;
  background: var(--ink);
}
.hero-image img { width: 100%; height: 100%; object-fit: cover; }
.hero-image::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(14,26,43,0.35) 0%, rgba(201,169,106,0.18) 100%);
  pointer-events: none;
}

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; }
  .hero-image { order: -1; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 3px;
  border: 1.5px solid var(--ink);
  background: var(--ink);
  color: #fff;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}
.btn:hover { background: var(--sand-dark); border-color: var(--sand-dark); color: #fff; transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn .arr { transition: transform 0.2s ease; }
.btn:hover .arr { transform: translateX(3px); }

/* ---------- section blocks ---------- */
.section { padding-block: clamp(3rem, 6vw, 5.5rem); }
.section--alt { background: var(--bone-2); border-block: 1px solid var(--rule); }
.section-head { max-width: 56ch; margin-bottom: 2.5rem; }
.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sand-dark);
  margin-bottom: 0.7rem;
}
.section h2 { margin-bottom: 0.4em; }
.section-lede { color: var(--muted); font-size: var(--step-1); line-height: 1.5; }

/* ---------- card grid ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.card {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1.8rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(14,26,43,0.08); border-color: var(--sand); }
.card h3 {
  font-size: var(--step-1);
  font-family: var(--serif);
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.card p { color: var(--muted); margin: 0; }
.card-number {
  font-family: var(--serif);
  color: var(--sand-dark);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  margin-bottom: 0.9rem;
  display: block;
}

/* ---------- featured research ---------- */
.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1rem;
}
.feature-item {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
}
.feature-item h3 {
  font-size: var(--step-2);
  margin-bottom: 0.4em;
  font-weight: 500;
}
.feature-tag {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sand-dark);
  margin-bottom: 0.9rem;
  display: block;
}
.feature-item p { color: var(--muted); flex-grow: 1; }
.feature-item .btn { align-self: flex-start; margin-top: 1rem; }
@media (max-width: 760px) { .feature { grid-template-columns: 1fr; } }

/* ---------- prose / article ---------- */
.prose {
  max-width: 68ch;
  margin: 0 auto;
}
.prose h2 { margin-top: 2.5rem; }
.prose h3 { margin-top: 2rem; font-size: var(--step-1); }
.prose ul { padding-left: 1.2rem; margin: 0 0 1.2em; }
.prose ul li { margin-bottom: 0.5em; }
.prose a { color: var(--sand-dark); border-bottom: 1px solid var(--sand-dark); }
.prose a:hover { color: var(--ink); border-bottom-color: var(--ink); }

.page-header {
  background: var(--ink);
  color: #fff;
  padding-block: clamp(3rem, 7vw, 5rem);
}
.page-header h1 {
  color: #fff;
  font-weight: 500;
  margin: 0 0 0.4em;
}
.page-header .eyebrow {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sand);
  margin: 0 0 1.2rem;
  display: block;
}
.page-header p {
  color: rgba(255,255,255,0.78);
  font-size: var(--step-1);
  max-width: 60ch;
  line-height: 1.5;
  margin: 0;
}

/* ---------- contact form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-info h3 { font-size: var(--step-1); }
.contact-info p { color: var(--muted); }
.contact-info a { color: var(--ink); border-bottom: 1px solid var(--rule); }
.contact-info a:hover { color: var(--sand-dark); border-bottom-color: var(--sand-dark); }

form.contact-form {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: clamp(1.4rem, 3vw, 2.2rem);
}
.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 0.4rem;
}
.field input, .field textarea, .field select {
  width: 100%;
  padding: 0.75rem 0.9rem;
  font: inherit;
  color: var(--text);
  background: var(--bone);
  border: 1px solid var(--rule);
  border-radius: 3px;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--sand-dark);
  background: #fff;
}
.field textarea { min-height: 130px; resize: vertical; }
.field-hint { font-size: 0.78rem; color: var(--muted); margin-top: 0.35rem; }
.field-honeypot { position: absolute; left: -5000px; opacity: 0; pointer-events: none; }

.form-actions { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-top: 1.4rem; }

/* reCAPTCHA wrapper alignment */
.captcha-wrap { margin: 1rem 0 0.5rem; }

.notice {
  padding: 0.9rem 1rem;
  border-radius: 3px;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}
.notice--ok { background: #e9efe2; color: #2e4a1f; border-left: 3px solid #6b8a3a; }
.notice--err { background: #f8e6e0; color: #6a2a1a; border-left: 3px solid #b85b3a; }

/* ---------- footer ---------- */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.78);
  padding-block: 3rem;
  margin-top: 4rem;
  font-size: var(--step--1);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h4 {
  color: #fff;
  font-family: var(--sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin: 0 0 1rem;
}
.footer-grid a { color: rgba(255,255,255,0.78); display: block; padding: 0.3rem 0; }
.footer-grid a:hover { color: var(--sand); }
.footer-brand img { width: 110px; margin-bottom: 1rem; filter: brightness(0) invert(1); }
.footer-brand p { max-width: 36ch; line-height: 1.5; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ---------- list pages ---------- */
.empty-state {
  text-align: center;
  padding: 4rem 1rem;
  background: var(--bone-2);
  border: 1px solid var(--rule);
  border-radius: 4px;
  max-width: 60ch;
  margin: 2rem auto;
}
.empty-state h3 { font-size: var(--step-1); margin-bottom: 0.4em; }
.empty-state p { color: var(--muted); margin: 0; }

/* ---------- skip link / a11y ---------- */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 200;
}
.skip:focus { left: 1rem; top: 1rem; outline: 2px solid var(--sand); }

/* ---------- research series card ---------- */
.feature--three {
  grid-template-columns: 1fr 1fr 1fr;
}
@media (max-width: 960px) { .feature--three { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .feature--three { grid-template-columns: 1fr; } }

.feature-item--series {
  border-color: var(--ink-soft);
  background: var(--bone-2);
  grid-column: span 1;
}

.series-modules {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 1rem 0;
}

.module-pill {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.25rem 0.6rem;
  border-radius: 2px;
  border: 1px solid var(--rule);
  color: var(--muted);
  background: #fff;
}

.module-pill--active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

/* ---------- series landing page ---------- */
.module-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}
@media (max-width: 640px) { .module-grid { grid-template-columns: 1fr; } }

.module-card {
  background: #fff;
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}
.module-card--available {
  border-color: var(--ink-soft);
}
.module-card--coming {
  opacity: 0.6;
}
.module-card h3 {
  font-size: var(--step-1);
  font-weight: 500;
  margin-bottom: 0.4em;
}
.module-card p {
  color: var(--muted);
  flex-grow: 1;
  margin-bottom: 1rem;
}
.module-status {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: block;
}
.module-status--available { color: var(--ink); }
.module-status--coming    { color: var(--muted); }

/* ---------- finding callout ---------- */
.finding-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: 2rem 0;
}
@media (max-width: 700px) { .finding-grid { grid-template-columns: 1fr; } }

.finding-card {
  background: var(--bone-2);
  border-left: 3px solid var(--ink);
  padding: 1.25rem 1.5rem;
  border-radius: 0 4px 4px 0;
}
.finding-card .finding-verdict {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sand-dark);
  margin-bottom: 0.4rem;
  display: block;
}
.finding-card p {
  margin: 0;
  font-size: var(--step--1);
  color: var(--text);
  line-height: 1.5;
}

/* ---------- data meta ---------- */
.data-meta {
  font-size: 0.82rem;
  color: var(--muted);
  border-top: 1px solid var(--rule);
  margin-top: 3rem;
  padding-top: 1.25rem;
}
.data-meta h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.5rem;
}