:root {
  --bg: #ffffff;
  --surface: #f8fafc;
  --surface-strong: #f1f5f9;
  --ink: #0f172a;
  --muted: #64748b;
  --brand: #2563eb;
  --brand-deep: #1d4ed8;
  --accent: #0d9488;
  --accent-deep: #0f766e;
  --line: #e2e8f0;
  --line-strong: #cbd5e1;
  --shadow-sm: 0 1px 3px rgba(15,23,42,0.07), 0 1px 2px rgba(15,23,42,0.04);
  --shadow: 0 4px 16px rgba(15,23,42,0.08), 0 2px 6px rgba(15,23,42,0.04);
  --shadow-lg: 0 12px 32px rgba(15,23,42,0.10), 0 4px 12px rgba(15,23,42,0.05);
  --radius-xl: 20px;
  --radius-lg: 14px;
  --radius-md: 10px;
  --radius-sm: 6px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Space Grotesk", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

.page-shell {
  width: min(1280px, calc(100% - 48px));
  margin: 0 auto;
  padding: 0 0 72px;
}

/* ── Topbar ───────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 48px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  border-radius: 10px;
}

.brand-copy strong {
  display: block;
  font-size: 0.95rem;
  letter-spacing: 0.07em;
  color: var(--ink);
}

.brand-copy span {
  color: var(--muted);
  font-size: 0.8rem;
}

.nav-links { display: flex; gap: 4px; }

.nav-link-pill {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 500;
  transition: background 0.14s, color 0.14s;
}

.nav-link-pill:hover {
  background: var(--surface);
  color: var(--ink);
}

.nav-link-pill.is-active {
  background: var(--ink);
  color: #fff;
}

/* ── Hero (dark card) ─────────────────────────── */
.hero-card {
  border-radius: var(--radius-xl);
  padding: 52px;
  background: var(--ink);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: -100px; right: -80px;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37,99,235,0.4) 0%, transparent 68%);
  pointer-events: none;
}

.hero-card::after {
  content: '';
  position: absolute;
  bottom: -80px; left: 40%;
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(13,148,136,0.22) 0%, transparent 68%);
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 11px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.78);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.16);
}

.solutions-grid {
  display: grid;
  gap: 32px;
  grid-template-columns: 1.1fr 0.9fr;
  margin-top: 0;
}

.hero-copy h1 {
  margin: 20px 0 16px;
  font-family: "Fraunces", serif;
  font-size: clamp(2.2rem, 3.8vw, 3.8rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: #fff;
}

.hero-copy p {
  color: rgba(255,255,255,0.68);
  line-height: 1.66;
  font-size: 1.02rem;
  margin: 0 0 16px;
}

.hero-metrics {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.metric-pill {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.09);
  border: 1px solid rgba(255,255,255,0.14);
  color: #fff;
}

.metric-pill strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 3px;
  font-family: "Fraunces", serif;
}

.metric-pill span {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.6);
}

.hero-note {
  border-radius: var(--radius-lg);
  padding: 26px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.13);
}

.hero-note h3 {
  margin-top: 0;
  color: #fff;
  font-size: 1.05rem;
}

.hero-note p {
  color: rgba(255,255,255,0.68);
  line-height: 1.58;
  margin: 0 0 10px;
  font-size: 0.95rem;
}

/* Hero-note used standalone (light bg) */
.hero-note-block {
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.hero-note-block h3 { color: var(--ink); margin-top: 0; }
.hero-note-block p  { color: var(--muted); line-height: 1.6; margin: 0 0 10px; }

/* ── Chips ────────────────────────────────────── */
.chips {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.chip {
  padding: 8px 15px;
  border-radius: 999px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.88);
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.14s, border-color 0.14s;
}

.chip:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.3);
}

/* ── Buttons ──────────────────────────────────── */
.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.14s, box-shadow 0.14s;
  text-decoration: none;
}

.button {
  background: var(--brand);
  color: #fff;
}

.button:hover {
  background: var(--brand-deep);
  box-shadow: 0 4px 14px rgba(37,99,235,0.32);
}

.button-secondary {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line-strong);
}

.button-secondary:hover { border-color: var(--ink); }

/* ── Section ──────────────────────────────────── */
.section { margin-top: 52px; }

.section-title { margin-bottom: 28px; }

.section-title h2 {
  margin: 0 0 8px;
  font-family: "Fraunces", serif;
  font-size: clamp(1.7rem, 2.8vw, 2.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.section-title p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.96rem;
}

/* ── Panel ────────────────────────────────────── */
.panel {
  border-radius: var(--radius-xl);
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.panel h3 { margin-top: 0; font-size: 1.05rem; }
.panel h4 { margin-top: 0; }
.panel p  { color: var(--muted); line-height: 1.6; font-size: 0.95rem; }

/* ── Stats ────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.stat-card {
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  text-align: center;
}

.stat-card strong {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  font-family: "Fraunces", serif;
  color: var(--ink);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-card span { font-size: 0.82rem; color: var(--muted); }

/* ── Tag grid (areas / sectors) ───────────────── */
.tag-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.tag-card {
  border-radius: var(--radius-md);
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--line);
  transition: border-color 0.14s, box-shadow 0.14s;
}

.tag-card:hover {
  border-color: var(--brand);
  box-shadow: var(--shadow-sm);
}

.tag-card strong { display: block; font-size: 0.9rem; margin-bottom: 3px; color: var(--ink); }
.tag-card p { margin: 0; font-size: 0.8rem; color: var(--muted); }

/* ── Tag row / mini tags ──────────────────────── */
.tag-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.mini-tag {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(37,99,235,0.07);
  color: var(--brand-deep);
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid rgba(37,99,235,0.14);
}

/* ── Main clients grid ────────────────────────── */
.main-clients-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.main-client-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 22px 14px 18px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--line);
  text-align: center;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}

.main-client-card:not(.no-link):hover {
  border-color: var(--brand);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.main-client-card.no-link { cursor: default; }

.main-client-logo-wrap {
  height: 58px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-client-logo-img {
  max-height: 50px;
  max-width: 100%;
  object-fit: contain;
  display: block;
}

.client-logo-mark {
  width: 50px;
  height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  border: 1px solid var(--line);
  color: var(--ink);
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: 0.05em;
}

.main-client-info strong {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 3px;
}

.main-client-info span {
  display: block;
  font-size: 0.71rem;
  color: var(--muted);
  line-height: 1.35;
}

/* ── FactuGuard featured ──────────────────────── */
.factuguard-banner {
  border-radius: var(--radius-xl);
  background: var(--ink);
  overflow: hidden;
  position: relative;
}

.factuguard-banner::before {
  content: '';
  position: absolute;
  top: -80px; right: -60px;
  width: 380px; height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(13,148,136,0.28) 0%, transparent 68%);
  pointer-events: none;
}

.factuguard-eyebrow {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}

.factuguard-badge {
  padding: 4px 11px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.11);
  color: rgba(255,255,255,0.8);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1px solid rgba(255,255,255,0.18);
}

.factuguard-badge-live {
  background: rgba(13,148,136,0.25);
  color: #5eead4;
  border-color: rgba(13,148,136,0.38);
}

.factuguard-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  align-items: stretch;
}

.factuguard-copy {
  padding: 44px 44px 44px 44px;
  color: #fff;
}

.factuguard-title {
  margin: 0 0 8px;
  font-family: "Fraunces", serif;
  font-size: clamp(2.6rem, 3.8vw, 4rem);
  line-height: 0.96;
  letter-spacing: -0.04em;
  color: #fff;
}

.factuguard-tagline {
  font-size: 1.08rem;
  font-weight: 600;
  color: rgba(255,255,255,0.88) !important;
  margin: 0 0 16px;
  line-height: 1.42;
}

.factuguard-copy > p {
  color: rgba(255,255,255,0.62);
  line-height: 1.66;
  margin: 0 0 20px;
  font-size: 0.96rem;
}

.factuguard-features {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 4px;
}

.fg-feature {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.09);
  color: rgba(255,255,255,0.82);
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid rgba(255,255,255,0.14);
}

.factuguard-cta-block {
  padding: 44px 36px;
  border-left: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0;
}

.factuguard-domain {
  font-size: 1.05rem;
  font-weight: 700;
  color: #5eead4;
  margin: 0 0 10px;
}

.factuguard-cta-block > p {
  color: rgba(255,255,255,0.6);
  line-height: 1.58;
  margin: 0;
  font-size: 0.9rem;
}

.factuguard-actions {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-top: 22px;
}

.factuguard-btn-primary {
  background: var(--accent) !important;
  color: #fff !important;
}

.factuguard-btn-primary:hover {
  background: var(--accent-deep) !important;
  box-shadow: 0 4px 14px rgba(13,148,136,0.35) !important;
}

.factuguard-actions .button-secondary {
  background: rgba(255,255,255,0.09);
  color: rgba(255,255,255,0.82);
  border-color: rgba(255,255,255,0.18);
}

.factuguard-actions .button-secondary:hover {
  background: rgba(255,255,255,0.16);
  border-color: rgba(255,255,255,0.32);
}

/* ── Chat / Assistant ─────────────────────────── */
.chat-thread {
  display: grid;
  gap: 10px;
  margin: 20px 0;
  min-height: 320px;
}

.message {
  max-width: 86%;
  padding: 14px 18px;
  border-radius: var(--radius-lg);
  font-size: 0.95rem;
  line-height: 1.58;
}

.message.user {
  margin-left: auto;
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-lg) var(--radius-lg) 4px var(--radius-lg);
}

.message.assistant {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px var(--radius-lg) var(--radius-lg) var(--radius-lg);
}

.message p:last-child,
.message h4:last-child,
.message h5:last-child { margin-bottom: 0; }

.composer { display: grid; gap: 10px; }

.composer textarea {
  min-height: 110px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font: inherit;
  font-size: 0.94rem;
  background: #fff;
  outline: none;
  transition: border-color 0.14s;
}

.composer textarea:focus { border-color: var(--brand); }

.composer-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ── AI provider selector ─────────────────────── */
.ai-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.ai-selector-label {
  font-size: 0.8rem;
  color: var(--muted);
  font-weight: 500;
}

.ai-provider-btn {
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  font: inherit;
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.14s, color 0.14s, border-color 0.14s;
}

.ai-provider-btn.is-active {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.ai-provider-btn.is-active.claude {
  background: var(--accent);
  border-color: var(--accent);
}

/* ── Assistant CTA ────────────────────────────── */
.assistant-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius-xl);
  padding: 36px 44px;
}

.assistant-cta-copy { flex: 1; min-width: 240px; }

.assistant-cta-copy h3 {
  color: #fff;
  margin-top: 0;
  font-size: 1.2rem;
}

.assistant-cta-copy p {
  color: rgba(255,255,255,0.66);
  margin-bottom: 4px;
  font-size: 0.94rem;
}

.assistant-cta .button {
  background: #fff;
  color: var(--ink);
  white-space: nowrap;
}

.assistant-cta .button:hover {
  background: #f1f5f9;
  box-shadow: none;
}

/* ── Misc ─────────────────────────────────────── */
.muted { color: var(--muted); font-size: 0.86rem; }

.footer-note {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.83rem;
}

.footer-note a {
  color: var(--brand);
}

.footer-note a:hover { text-decoration: underline; }

/* ── Project card (hidden but kept) ──────────── */
.project-card {
  border-radius: var(--radius-lg);
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
}

.project-card h3 { margin-top: 0; font-size: 1rem; }
.project-card p  { color: var(--muted); font-size: 0.88rem; line-height: 1.55; }

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

/* ── Responsive ───────────────────────────────── */
@media (max-width: 1100px) {
  .solutions-grid,
  .factuguard-grid { grid-template-columns: 1fr; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .tag-grid   { grid-template-columns: repeat(2, 1fr); }

  .main-clients-grid { grid-template-columns: repeat(3, 1fr); }

  .factuguard-copy,
  .factuguard-cta-block { padding: 36px 32px; }

  .factuguard-cta-block { border-left: none; border-top: 1px solid rgba(255,255,255,0.08); }

  .hero-card { padding: 36px 32px; }
  .assistant-cta { padding: 28px 32px; }
}

@media (max-width: 700px) {
  .page-shell { width: calc(100% - 32px); }

  .hero-card { padding: 28px 22px; }
  .hero-copy h1 { font-size: 2rem; }

  .main-clients-grid { grid-template-columns: repeat(2, 1fr); }

  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .tag-grid   { grid-template-columns: 1fr; }

  .project-grid { grid-template-columns: 1fr; }

  .topbar { flex-direction: column; align-items: flex-start; }

  .message { max-width: 100%; }

  .panel { padding: 20px; }

  .factuguard-copy,
  .factuguard-cta-block { padding: 26px 22px; }

  .factuguard-actions { flex-direction: column; }

  .assistant-cta { padding: 24px 22px; }
}