:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --border: #1f1f2e;
  --text: #e8e8ed;
  --muted: #8b8b9e;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --radius: 12px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, var(--accent-glow), transparent),
    radial-gradient(ellipse 60% 40% at 100% 100%, rgba(99, 102, 241, 0.06), transparent);
  pointer-events: none;
  z-index: -1;
}

a {
  color: inherit;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 960px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem;
}

.logo {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  font-size: 0.875rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s;
}

.nav a:hover {
  color: var(--text);
}

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.hero {
  padding: 3rem 0 4rem;
}

.eyebrow {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 1rem;
}

.hero h1 {
  font-size: clamp(2.25rem, 6vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin: 0 0 1.25rem;
}

.lead {
  font-size: 1.0625rem;
  color: var(--muted);
  max-width: 36rem;
  margin: 0;
}

.models {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 700px) {
  .models {
    grid-template-columns: 1fr 1fr;
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: border-color 0.2s;
}

.card:hover {
  border-color: #2a2a3d;
}

.card-featured {
  border-color: rgba(99, 102, 241, 0.35);
  box-shadow: 0 0 0 1px var(--accent-glow);
}

.badge {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: var(--border);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.badge-accent {
  color: #a5b4fc;
  background: rgba(99, 102, 241, 0.2);
}

.card h2 {
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
}

.spec {
  font-size: 0.8125rem;
  color: var(--muted);
  margin: 0.25rem 0 0;
}

.card-desc {
  font-size: 0.9375rem;
  color: var(--muted);
  margin: 0;
  flex: 1;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 0.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5625rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: white;
  border: none;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: #3a3a52;
}

.links {
  text-align: center;
  margin-top: 3rem;
  font-size: 0.875rem;
  color: var(--muted);
}

.benchmarks {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--border);
}

.benchmarks h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
  text-align: center;
}

.section-lead {
  text-align: center;
  color: var(--muted);
  font-size: 0.9375rem;
  max-width: 36rem;
  margin: 0 auto 2rem;
  line-height: 1.5;
}

.benchmark-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.benchmark-card {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  overflow: hidden;
}

.benchmark-card figcaption {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--muted);
}

.benchmark-card figcaption strong {
  color: var(--text);
  font-size: 0.9375rem;
}

.benchmark-card img {
  display: block;
  width: 100%;
  height: auto;
  background: #fff;
}

.benchmark-note {
  margin: 1.25rem 0 0;
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
}

.benchmark-note code {
  font-size: 0.6875rem;
  color: var(--text);
}

.quota-note {
  font-size: 0.8125rem;
  color: var(--muted);
  margin-top: 0.35rem;
}

.quota-note a {
  color: var(--accent);
}

.links a {
  color: var(--muted);
  text-decoration: none;
}

.links a:hover {
  color: var(--accent);
}

.footer {
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--muted);
}

.footer a {
  color: var(--text);
  text-decoration: none;
}

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

/* Chat embed pages */
.chat-page main {
  padding-top: 1rem;
  padding-bottom: 2rem;
}

.chat-header {
  margin-bottom: 1.25rem;
}

.chat-header h1 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 0.25rem;
}

.chat-header p {
  font-size: 0.875rem;
  color: var(--muted);
  margin: 0;
}

.chat-header a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.875rem;
}

.chat-header a:hover {
  text-decoration: underline;
}

.embed-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
  min-height: 620px;
}

.embed-wrap iframe {
  display: block;
  width: 100%;
  height: 700px;
  border: none;
}

.embed-fallback {
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--muted);
}

.embed-fallback a {
  color: var(--accent);
}

/* Native Pulse chat (Modal + Vercel) */
.chat-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  min-height: 520px;
  max-height: min(72vh, 700px);
}

.chat-status {
  font-size: 0.75rem;
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}

.chat-status[data-kind="warm"] { color: #a5b4fc; }
.chat-status[data-kind="busy"] { color: #fbbf24; }
.chat-status[data-kind="error"] { color: #f87171; }
.chat-status[data-kind="ready"] { color: #86efac; }

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.msg {
  max-width: 88%;
}

.msg-user {
  align-self: flex-end;
}

.msg-assistant {
  align-self: flex-start;
}

.msg-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.msg-user .msg-label {
  text-align: right;
  color: #a5b4fc;
}

.msg p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.5;
  padding: 0.625rem 0.875rem;
  border-radius: 10px;
  background: var(--border);
}

.msg-user p {
  background: rgba(99, 102, 241, 0.25);
}

.chat-form {
  display: flex;
  gap: 0.5rem;
  padding: 0.875rem;
  border-top: 1px solid var(--border);
}

.chat-form input {
  flex: 1;
  font-family: inherit;
  font-size: 0.9375rem;
  padding: 0.625rem 0.875rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.chat-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.chat-form .btn {
  flex-shrink: 0;
}

.chat-disclaimer {
  margin: 0.75rem 0 0;
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
}