/* ═══════════════════════════════════════════════════
   GTG Collective — Grassroots to Governance
   Design System: Dark theme, green accents
   ═══════════════════════════════════════════════════ */

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

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #1a1a1a;
  --bg-card-hover: #222222;
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0a0;
  --text-muted: #666;
  --accent: #4ade80;
  --accent-dark: #22c55e;
  --accent-glow: rgba(74, 222, 128, 0.15);
  --border: #2a2a2a;
  --border-light: #333;
  --nav-bg: rgba(10, 10, 10, 0.95);
  --max-width: 1100px;
  --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Georgia', 'Times New Roman', serif;
  --transition: 0.2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #86efac; }

img { max-width: 100%; display: block; }

.section-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.section-intro {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
  max-width: 780px;
}

/* --- Navigation --- */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: 64px;
  display: flex;
  align-items: center;
}

.nav-content {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.nav-logo img {
  height: 36px;
  width: auto;
}

.nav-logo-text {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.nav-logo-sub {
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-top: -2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a.active { color: var(--text-primary); }

.nav-cta {
  background: var(--accent-dark) !important;
  color: var(--bg-primary) !important;
  padding: 0.5rem 1.25rem !important;
  border-radius: 6px;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  transition: all var(--transition) !important;
}

.nav-cta:hover {
  background: var(--accent) !important;
  transform: translateY(-1px);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all 0.3s ease;
}

/* --- Hero --- */
.hero {
  min-height: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem 2rem 2rem;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 60%);
  opacity: 0.4;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1100px;
}

.hero-logo {
  max-width: 800px;
  margin: 0 auto 0;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.15;
  color: var(--text-primary);
  margin-top: -3rem;
  margin-bottom: 1.25rem;
}

.hero-subhead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 650px;
  margin: 0 auto 2rem;
}

.hero-cta {
  display: inline-block;
  background: var(--accent-dark);
  color: var(--bg-primary);
  padding: 0.85rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
}

.hero-cta:hover {
  background: var(--accent);
  transform: translateY(-2px);
  color: var(--bg-primary);
}

/* --- Section Dividers --- */
.section-divider {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 2rem 2rem 1rem;
  text-align: center;
  position: relative;
  margin-bottom: 2rem;
}

.section-divider::after {
  content: '';
  position: absolute;
  bottom: -2rem;
  left: 0;
  width: 100%;
  height: 2rem;
  background: var(--bg-secondary);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  background: linear-gradient(to bottom, var(--bg-secondary) 60%, var(--accent-dark) 100%);
  opacity: 0.85;
}

.section-divider h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.section-divider p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 600px;
  margin: 0 auto;
}

.section-divider .chevron {
  display: none;
}

/* --- Cards (generic) --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: all var(--transition);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Philosophy Cards --- */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

.philosophy-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: all var(--transition);
}

.philosophy-card:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
}

.philosophy-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.philosophy-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* --- Team Cards --- */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition);
}

.team-card:hover {
  border-color: var(--border-light);
}

.team-card.filter-match { border-left: 3px solid var(--accent); }
.team-card.filter-dim { opacity: 0.25; }

.team-card-header { padding: 1.5rem; }

.team-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 1rem;
  border: 2px solid var(--border);
}

.team-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.team-card h3 a {
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.team-card h3 a:hover { color: var(--accent); }

.linkedin-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.team-card-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.team-card-role {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 0.75rem;
}
.team-card-email {
  font-size: 0.8rem;
  margin-bottom: 0.75rem;
}
.team-card-email a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
.team-card-email a:hover {
  color: var(--text-primary);
}

.team-expand-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0;
  transition: color var(--transition);
}

.team-expand-btn:hover { color: #86efac; }

.team-card-bio {
  display: none;
}

/* --- Team Modal --- */
.team-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  transition: opacity 0.25s ease;
  cursor: pointer;
}
.team-modal-overlay.active { opacity: 1; }

.team-modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  max-width: 640px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform 0.25s ease;
  cursor: default;
}
.team-modal-overlay.active .team-modal {
  transform: translateY(0);
}

.team-modal-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem 2rem 1.5rem;
}
.team-modal-photo {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent);
  flex-shrink: 0;
}
.team-modal-info h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}
.team-modal-info h3 a {
  color: inherit;
  text-decoration: none;
}
.team-modal-info h3 a:hover {
  color: var(--accent);
}
.team-modal-info .modal-role {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.team-modal-info .modal-email {
  font-size: 0.8rem;
  margin-top: 0.4rem;
}
.team-modal-info .modal-email a {
  color: var(--accent);
  text-decoration: none;
}

.team-modal-body {
  padding: 0 2rem 2rem;
  border-top: 1px solid var(--border);
  margin-top: 0;
  padding-top: 1.5rem;
}
.team-modal-body p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 0.75rem;
}
.team-modal-body p:last-child { margin-bottom: 0; }
.team-modal-body a {
  color: var(--accent);
  text-decoration: none;
}

.team-modal-close {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 1;
  padding: 0.25rem 0.5rem;
  line-height: 1;
  transition: color var(--transition);
}
.team-modal-close:hover { color: var(--text-primary); }

@media (max-width: 768px) {
  .team-modal-header {
    flex-direction: column;
    text-align: center;
    padding: 1.5rem 1.5rem 1rem;
  }
  .team-modal-body { padding: 0 1.5rem 1.5rem; }
  .team-modal { max-height: 90vh; }
}

/* --- Filter Buttons --- */
.filter-section {
  background: var(--bg-secondary);
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* --- Category Buttons (top row) --- */
.filter-categories {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}
.category-btn {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  border-radius: 999px;
  border: 1px solid var(--accent-dark);
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  font-family: var(--font-main);
}
.category-btn:hover { background: var(--bg-card-hover); color: var(--text-primary); border-color: var(--accent); }
.category-btn.active { background: var(--accent-dark); color: var(--bg-primary); border-color: var(--accent-dark); }

/* --- Sub-filter Buttons --- */
.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.4rem;
}
.filter-btn {
  display: inline-block;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  font-family: var(--font-main);
}
.sub-btn { display: inline-block; }
.sub-btn.hidden { display: none; }

.filter-btn:hover { background: var(--bg-card-hover); color: var(--text-primary); border-color: var(--border-light); }
.filter-btn.active { background: var(--accent-dark); color: var(--bg-primary); border-color: var(--accent-dark); }

/* --- Specialty Cards (Services) --- */
.specialties-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.specialty-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: all var(--transition);
}

.specialty-card:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
}

.specialty-card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.specialty-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.specialty-card .card-link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

/* --- Sections --- */
section {
  padding: 5rem 0;
}

.alt-bg { background: var(--bg-secondary); }

/* --- CTA Section --- */
.cta-section {
  background: var(--bg-secondary);
  text-align: center;
  padding: 5rem 2rem;
  border-top: 1px solid var(--border);
}

.cta-section h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.cta-section p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 550px;
  margin: 0 auto 1.5rem;
}

.cta-btn {
  display: inline-block;
  background: var(--accent-dark);
  color: var(--bg-primary);
  padding: 0.85rem 2.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: all var(--transition);
}

.cta-btn:hover {
  background: var(--accent);
  transform: translateY(-2px);
  color: var(--bg-primary);
}

/* --- Newsletter Subscribe --- */
.subscribe-section {
  background: var(--bg-primary);
  text-align: center;
  padding: 4rem 2rem;
  border-top: 1px solid var(--border);
}

.subscribe-section h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.subscribe-section p {
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.subscribe-form {
  display: flex;
  gap: 0.5rem;
  max-width: 420px;
  margin: 0 auto;
}

.subscribe-form input[type="email"] {
  flex: 1;
  padding: 0.7rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: var(--font-main);
}

.subscribe-form input[type="email"]::placeholder { color: var(--text-muted); }

.subscribe-form button {
  padding: 0.7rem 1.5rem;
  background: var(--accent-dark);
  color: var(--bg-primary);
  border: none;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-main);
}

.subscribe-form button:hover { background: var(--accent); }

.subscribe-alt {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- Footer --- */
footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 3rem 2rem 1.5rem;
}

.footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-section h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.footer-section p,
.footer-section a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li a {
  color: var(--text-secondary);
  font-size: 0.85rem;
  display: block;
  padding: 0.15rem 0;
}

.footer-section ul li a:hover { color: var(--accent); }

.footer-bottom {
  max-width: var(--max-width);
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-bottom a { color: var(--text-muted); }
.footer-bottom a:hover { color: var(--accent); }

.footer-bottom p { margin-bottom: 0.25rem; }

/* --- Research Section --- */
.research-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* --- About Page --- */
.about-content {
  max-width: 780px;
}

.about-content p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.about-content strong { color: var(--text-primary); }

/* --- Contact Form --- */
.contact-form-wrapper {
  max-width: 500px;
  margin: 2rem auto 0;
}

/* HubSpot form overrides for dark theme */
.hs-form-frame input,
.hs-form-frame textarea,
.hs-form-frame select {
  background: var(--bg-card) !important;
  border: 1px solid var(--border) !important;
  color: var(--text-primary) !important;
  border-radius: 6px !important;
}

.hs-form-frame input[type="submit"] {
  background: var(--accent-dark) !important;
  color: var(--bg-primary) !important;
  border: none !important;
  font-weight: 600 !important;
  padding: 0.75rem 2rem !important;
  border-radius: 6px !important;
  cursor: pointer !important;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .hero { min-height: auto; padding: 1rem 1.5rem 1.5rem; }
  .hero h1 { font-size: 2rem; }
  .hero-subhead { font-size: 1rem; }
  .hero-logo { max-width: 100%; }

  .section-title { font-size: 1.6rem; }
  section { padding: 3.5rem 0; }

  .philosophy-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: 1fr; }
  .specialties-grid { grid-template-columns: 1fr; }
  .research-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }

  .nav-links { display: none; }
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    padding: 1.5rem 2rem;
    gap: 1rem;
    border-bottom: 1px solid var(--border);
  }

  .mobile-menu-toggle { display: flex; }

  .subscribe-form { flex-direction: column; }

  .footer-content { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.7rem; }
  .section-content { padding: 0 1.25rem; }
}