/* ============================================================
   THINKCAPITAL.ORG — Global Styles
   Color system: Navy #1a2332 | Gold #FFC300 | Slate #4a5568
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Source+Serif+4:ital,wght@0,300;0,400;0,600;1,400&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

:root {
  --navy:       #1a2332;
  --navy-light: #243042;
  --gold:       #FFC300;
  --gold-dark:  #d4a200;
  --slate:      #4a5568;
  --slate-light:#718096;
  --cream:      #fdfaf5;
  --white:      #ffffff;
  --border:     #e2e8f0;
  --text:       #2d3748;
  --link:       #2c5282;
  --link-hover: #1a3a6b;
  --section-alt:#f7f9fc;
  --radius:     4px;
  --shadow:     0 2px 12px rgba(26,35,50,0.09);
  --shadow-lg:  0 8px 32px rgba(26,35,50,0.13);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Source Serif 4', Georgia, serif;
  font-size: 17px;
  line-height: 1.75;
  color: var(--text);
  background: var(--white);
}

/* ── TYPOGRAPHY ──────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: 'Playfair Display', Georgia, serif;
  color: var(--navy);
  line-height: 1.25;
}
h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); font-weight: 700; }
h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); font-weight: 600; margin-bottom: 0.75rem; }
h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 0.5rem; }
h4 { font-size: 1rem; font-weight: 600; }

p { margin-bottom: 1.1rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }

strong { font-weight: 600; }
em { font-style: italic; }

/* ── LAYOUT ──────────────────────────────────────────── */
.container {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 2rem;
}
.container--narrow {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── HEADER / NAV ────────────────────────────────────── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 3px solid var(--gold);
  box-shadow: 0 2px 8px rgba(26,35,50,0.07);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}
.header-logo img {
  height: 50px;
  width: auto;
  display: block;
}
.header-logo .logo-text {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.02em;
}

/* Top-level nav bar — scoped to direct children only */
nav > ul {
  display: flex;
  list-style: none;
  gap: 0;
  align-items: center;
  margin: 0;
  padding: 0;
}
nav > ul > li { position: relative; }
nav > ul > li > a {
  display: block;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy);
  padding: 0.6rem 0.85rem;
  transition: color 0.2s;
  text-decoration: none;
  white-space: nowrap;
}
nav > ul > li > a:hover,
nav > ul > li > a.active {
  color: var(--gold-dark);
}
nav > ul > li > a.active {
  border-bottom: 2px solid var(--gold);
}

/* Dropdown — explicit block display, never flex */
nav > ul > li.has-dropdown > a::after {
  content: ' ▾';
  font-size: 0.7rem;
}
nav > ul > li > .dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 2px solid var(--gold);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  z-index: 200;
  /* Explicitly block — overrides any inherited flex */
  flex-direction: unset;
}
nav > ul > li > .dropdown,
nav > ul > li > .dropdown ul {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
}
nav > ul > li:hover > .dropdown { display: block; }
nav > ul > li > .dropdown > li {
  display: block;
  position: static;
}
nav > ul > li > .dropdown > li > a {
  display: block;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.88rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
  color: var(--navy);
  padding: 0.55rem 1.1rem;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
  text-decoration: none;
  white-space: nowrap;
}
nav > ul > li > .dropdown > li:last-child > a { border-bottom: none; }
nav > ul > li > .dropdown > li > a:hover {
  background: var(--section-alt);
  color: var(--navy);
  border-bottom-color: var(--border);
}
nav > ul > li > .dropdown > li > a.active {
  color: var(--gold-dark);
  border-bottom-color: var(--border);
}

.nav-engage {
  background: var(--navy);
  color: var(--white) !important;
  border-radius: var(--radius);
  padding: 0.5rem 1rem !important;
  margin-left: 0.5rem;
}
.nav-engage:hover { background: var(--navy-light) !important; color: var(--gold) !important; }

/* ── HERO (homepage) ─────────────────────────────────── */
.hero-questions {
  background: var(--navy);
  color: var(--white);
  padding: 5rem 2rem 4rem;
  position: relative;
  overflow: hidden;
}
.hero-questions::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 60px,
    rgba(255,195,0,0.025) 60px,
    rgba(255,195,0,0.025) 61px
  );
  pointer-events: none;
}
.hero-questions .container { position: relative; }
.hero-eyebrow {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
}
.hero-questions h1 {
  color: var(--white);
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  margin-bottom: 2.5rem;
  max-width: 800px;
}
.question-list {
  list-style: none;
  margin-bottom: 3rem;
  max-width: 820px;
}
.question-list li {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  font-style: italic;
  color: rgba(255,255,255,0.88);
  padding: 0.85rem 0 0.85rem 2rem;
  border-left: 3px solid var(--gold);
  margin-bottom: 1rem;
  line-height: 1.45;
  opacity: 0;
  animation: fadeSlide 0.6s forwards;
}
.question-list li:nth-child(1) { animation-delay: 0.1s; }
.question-list li:nth-child(2) { animation-delay: 0.25s; }
.question-list li:nth-child(3) { animation-delay: 0.4s; }
.question-list li:nth-child(4) { animation-delay: 0.55s; }
.question-list li:nth-child(5) { animation-delay: 0.7s; }
@keyframes fadeSlide {
  from { opacity:0; transform:translateX(-12px); }
  to   { opacity:1; transform:translateX(0); }
}
.hero-cta-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeSlide 0.6s 0.9s forwards;
}

/* ── BUTTONS ─────────────────────────────────────────── */
.btn {
  display: inline-block;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
}
.btn-gold {
  background: var(--gold);
  color: var(--navy);
}
.btn-gold:hover {
  background: var(--gold-dark);
  color: var(--navy);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255,195,0,0.3);
}
.btn-outline-white {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.5);
}
.btn-outline-white:hover {
  border-color: var(--gold);
  color: var(--gold);
  text-decoration: none;
}
.btn-navy {
  background: var(--navy);
  color: var(--white);
}
.btn-navy:hover {
  background: var(--navy-light);
  color: var(--gold);
  text-decoration: none;
  transform: translateY(-1px);
}
.btn-outline-navy {
  background: transparent;
  color: var(--navy);
  border: 2px solid var(--navy);
}
.btn-outline-navy:hover {
  background: var(--navy);
  color: var(--white);
  text-decoration: none;
}

/* ── SECTIONS ────────────────────────────────────────── */
.section { padding: 3.5rem 0; }
.section--alt { background: var(--section-alt); }
.section--navy { background: var(--navy); color: var(--white); }
.section--navy h2, .section--navy h3 { color: var(--white); }
.section--cream { background: var(--cream); }

.section-label {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 0.6rem;
}
.section--navy .section-label { color: var(--gold); }

/* ── RESEARCH CARDS (homepage quick access) ──────────── */
.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.research-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-top: 3px solid var(--gold);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.research-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}
.research-card .card-status {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--slate-light);
  margin-bottom: 0.5rem;
}
.research-card .card-status.active { color: #2f855a; }
.research-card .card-status.forming { color: #c05621; }
.research-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.6rem;
  color: var(--navy);
}
.research-card p {
  font-size: 0.92rem;
  color: var(--slate);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.research-card .card-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.research-card .card-links a {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: border-color 0.2s, color 0.2s;
}
.research-card .card-links a:hover {
  color: var(--gold-dark);
  border-color: var(--gold);
  text-decoration: none;
}

/* ── BRIDGE SECTION (homepage connect Q → research) ─── */
.bridge-section {
  background: var(--cream);
  padding: 3.5rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.bridge-text {
  max-width: 780px;
}
.bridge-text p {
  font-size: 1.1rem;
  color: var(--slate);
}

/* ── PAGE HERO (interior pages) ─────────────────────── */
.page-hero {
  background: var(--navy);
  padding: 3rem 2rem;
  border-bottom: 3px solid var(--gold);
}
.page-hero h1 { color: var(--white); margin-bottom: 0.6rem; }
.page-hero .page-hero-sub {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 1rem;
  color: rgba(255,255,255,0.7);
  max-width: 680px;
}

/* ── CARDS / CONTENT BLOCKS ──────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-left: 4px solid var(--gold);
  padding: 1.4rem 1.5rem;
  border-radius: var(--radius);
}
.card h3 { font-size: 1.05rem; margin-bottom: 0.5rem; }
.card p { font-size: 0.93rem; color: var(--slate); line-height: 1.6; }

.highlight-box {
  background: var(--navy);
  color: var(--white);
  padding: 1.8rem 2rem;
  border-left: 5px solid var(--gold);
  border-radius: var(--radius);
  margin: 2rem 0;
}
.highlight-box h3 { color: var(--white); }
.highlight-box p  { color: rgba(255,255,255,0.85); margin-bottom: 0; }

.inline-link-row {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
  align-items: center;
}
.inline-link-row a {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
}

/* ── KNOWLEDGE PAGE ──────────────────────────────────── */
.kb-source-block {
  border: 1px solid var(--border);
  border-top: 3px solid var(--navy);
  padding: 1.6rem;
  margin-bottom: 1.6rem;
  border-radius: var(--radius);
  background: var(--white);
}
.kb-source-block .kb-org {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-dark);
  margin-bottom: 0.4rem;
}
.kb-source-block h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.kb-placeholder {
  background: var(--section-alt);
  border: 2px dashed var(--border);
  padding: 2.5rem;
  text-align: center;
  border-radius: var(--radius);
  color: var(--slate-light);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.9rem;
  margin: 1rem 0;
}
.kb-placeholder strong { display: block; color: var(--slate); margin-bottom: 0.4rem; }

/* ── ENGAGE / FORM ELEMENTS ──────────────────────────── */
.form-group { margin-bottom: 1.2rem; }
.form-group label {
  display: block;
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--white);
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--navy);
}
.form-group textarea { min-height: 130px; resize: vertical; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}
.form-note {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.82rem;
  color: var(--slate-light);
  margin-top: 0.3rem;
}

/* ── CREDENTIALS / BIO ───────────────────────────────── */
.timeline {
  border-left: 3px solid var(--gold);
  padding-left: 1.5rem;
  margin: 1.5rem 0;
}
.timeline-item {
  position: relative;
  margin-bottom: 1.8rem;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.85rem;
  top: 0.4rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold);
  border: 2px solid var(--navy);
}
.timeline-item .t-period {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate-light);
  margin-bottom: 0.2rem;
}
.timeline-item h4 { font-size: 1rem; margin-bottom: 0.3rem; }
.timeline-item p  { font-size: 0.93rem; color: var(--slate); margin-bottom: 0; }

/* ── FOOTER ──────────────────────────────────────────── */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.7);
  padding: 2.5rem 0;
  border-top: 3px solid var(--gold);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.86rem;
}
.footer-inner {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 2rem;
}
.footer-brand .ft-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.15rem;
  color: var(--white);
  margin-bottom: 0.3rem;
}
.footer-brand p { font-size: 0.82rem; line-height: 1.6; max-width: 240px; }
.footer-links h4 {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.7rem;
}
.footer-links ul { list-style: none; }
.footer-links ul li { margin-bottom: 0.35rem; }
.footer-links ul li a {
  color: rgba(255,255,255,0.65);
  font-size: 0.85rem;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-links ul li a:hover { color: var(--gold); text-decoration: none; }
.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  max-width: 1060px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 2rem;
  padding-right: 2rem;
}

/* ── RESPONSIVE ──────────────────────────────────────── */
@media (max-width: 768px) {
  .header-inner { padding: 0.5rem 1.2rem; flex-wrap: wrap; gap: 0.5rem; }
  nav > ul { flex-wrap: wrap; gap: 0; }
  nav > ul > li > a { padding: 0.5rem 0.6rem; font-size: 0.75rem; }
  .hero-questions { padding: 3rem 1.2rem 2.5rem; }
  .section { padding: 2.5rem 0; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 1.5rem; }
  .container, .container--narrow { padding: 0 1.2rem; }
}