/* Shared design tokens — single source of truth for every page. */
:root {
  --ink:      #0e0c14;
  --panel:    #1a1825;
  --panel-2:  #201d2b;
  --paper:    #eceaf5;
  --mute:     #7b7290;
  --signal:   #f97316;
  --track:    #10b981;
  --accent:   #8b5cf6;
  --hairline: #2c2838;
  --radius:   12px;
}

/* ── billing toggle ───────────────────────────────────────────────────── */

.billing-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.billing-toggle-btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px;
  color: var(--mute);
  background: none;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 6px 18px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.billing-toggle-btn.active {
  color: var(--paper);
  border-color: var(--accent);
  background: rgba(139, 92, 246, 0.1);
}

.billing-save-badge {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--track);
  background: rgba(16, 185, 129, 0.12);
  border-radius: 999px;
  padding: 3px 12px;
}

/* ── pricing grid ─────────────────────────────────────────────────────── */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

@media (max-width: 720px) {
  .pricing-grid { grid-template-columns: 1fr; }
}

.pricing-card {
  background: var(--panel);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 28px 22px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--accent);
  background: var(--panel-2);
}

.popular-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--paper);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 14px;
  border-radius: 999px;
  white-space: nowrap;
}

.pricing-tier {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 14px;
}

.pricing-price {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--paper);
  margin: 0 0 4px;
  line-height: 1;
}

.pricing-price .amount   { font-size: 44px; }
.pricing-price .currency { font-size: 22px; vertical-align: top; margin-top: 7px; display: inline-block; }
.pricing-price .period   { font-size: 16px; font-weight: 500; color: var(--mute); }

.pricing-annual {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--mute);
  margin: 0 0 14px;
  min-height: 18px;
}

.pricing-tagline {
  font-size: 13px;
  color: var(--mute);
  margin: 0 0 20px;
  line-height: 1.5;
}

/* Feature list — check-marked, used inside pricing cards */
.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  color: var(--mute);
  flex: 1;
  margin-bottom: 24px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  line-height: 1.45;
}

.feature-list li::before {
  content: '✓';
  color: var(--track);
  flex-shrink: 0;
  font-size: 13px;
  margin-top: 1px;
}

.pricing-card .btn { margin-top: auto; text-align: center; }

/* ── enterprise row (below 3-card grid) ─────────────────────────────────── */

.enterprise-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--panel);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.enterprise-row-left {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.enterprise-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  white-space: nowrap;
}

.enterprise-desc {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 14px;
  color: var(--mute);
  line-height: 1.5;
}

/* ── why-arei grid ────────────────────────────────────────────────────── */

.why-arei-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-bottom: 60px;
}

@media (max-width: 600px) {
  .why-arei-grid { grid-template-columns: 1fr; }
}

/* ── teams section ────────────────────────────────────────────────────── */

.teams-section {
  background: var(--panel);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  padding: 32px 36px;
  margin-bottom: 60px;
}

.teams-section p {
  font-size: 15px;
  color: var(--mute);
  margin: 0 0 24px;
  line-height: 1.65;
}

/* ── free tier line ───────────────────────────────────────────────────── */

.free-tier-cta {
  text-align: center;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  color: var(--mute);
  margin: 20px 0 0;
  line-height: 1.6;
}

.free-tier-cta a { color: var(--track); text-decoration: none; }
.free-tier-cta a:hover { text-decoration: underline; }

/* ── trust badges under pricing ──────────────────────────────────────── */

.pricing-trust {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
  margin: 20px 0 0;
}

.pricing-trust-item {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  color: var(--mute);
  display: flex;
  align-items: center;
  gap: 5px;
}

.pricing-trust-item::before { content: '✓'; color: var(--track); }

/* ── trust strip ──────────────────────────────────────────────────────── */

.trust-strip {
  display: flex;
  gap: 0;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 80px;
  column-gap: 32px;
  row-gap: 12px;
}

.trust-item {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  color: var(--mute);
  display: flex;
  align-items: center;
  gap: 7px;
}

.trust-item::before { content: '✓'; color: var(--track); font-size: 12px; }

/* ── FAQ accordion ────────────────────────────────────────────────────── */

.faq-list { display: flex; flex-direction: column; }

.faq-item { border-bottom: 1px solid var(--hairline); }
.faq-item:first-child { border-top: 1px solid var(--hairline); }

.faq-item summary {
  cursor: pointer;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--paper);
  padding: 20px 0;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  gap: 16px;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-family: 'IBM Plex Mono', monospace;
  font-size: 20px;
  color: var(--mute);
  flex-shrink: 0;
  line-height: 1;
}

.faq-item[open] summary::after { content: '−'; }
.faq-item summary:hover { color: var(--paper); }
.faq-item summary:hover::after { color: var(--paper); }

.faq-answer {
  font-size: 15px;
  color: var(--mute);
  line-height: 1.7;
  padding: 0 40px 20px 0;
}

.faq-answer a { color: var(--accent); text-decoration: none; }
.faq-answer a:hover { text-decoration: underline; }

/* ── usage banner (index.html) ────────────────────────────────────────── */

.usage-banner {
  flex: 0 0 auto;
  width: 100%;
  max-width: 840px;
  margin: 0 auto;
  padding: 2px 20px 4px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  color: var(--hairline);
  display: none;
}

.usage-banner a { color: var(--mute); text-decoration: none; }
.usage-banner a:hover { color: var(--track); }

/* ── export button (conversations.html) ──────────────────────────────── */

.export-btn {
  background: none;
  border: 1px solid var(--hairline);
  border-radius: 6px;
  color: var(--mute);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  padding: 3px 10px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.export-btn:hover { border-color: var(--accent); color: var(--paper); }
.export-msg { font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--mute); }