/* connev-site.css — every value in this file resolves through a --connev-*
 * token declared in connev-tokens.css. No literal color, font-family, or
 * border-radius appears here by design (issue 276, feature §4 guard 2).
 */

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

html,
body {
  margin: 0;
  padding: 0;
  max-width: 100%;
}

body {
  background: var(--connev-bg-base);
  color: var(--connev-text-primary);
  font-family: var(--connev-font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.25;
}

p {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* The marker symbol library is a definition-only node: zero layout footprint. */
.svg-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* --- shared -------------------------------------------------------------- */

.section {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
}

.section-sub {
  margin-top: 0.75rem;
  color: var(--connev-text-secondary);
}

.cta {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: 1px solid transparent;
  border-radius: var(--connev-radius-button-lg);
  font-weight: 600;
  white-space: nowrap;
}

.cta-accent {
  background: var(--connev-accent);
  color: var(--connev-on-accent);
}

.cta-ghost {
  background: transparent;
  border-color: var(--connev-border-strong);
  color: var(--connev-text-primary);
}

.unavailable {
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  background: var(--connev-bg-surface-alt);
  border: 1px dashed var(--connev-border-strong);
  border-radius: var(--connev-radius-card);
  color: var(--connev-text-secondary-strong);
}

/* --- wordmark ------------------------------------------------------------ */

.wordmark {
  display: inline-flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.wordmark [data-connev-part='conn'] {
  color: var(--connev-text-primary);
}

.wordmark [data-connev-part='ev'] {
  background: var(--connev-accent);
  color: var(--connev-on-accent);
  border-radius: var(--connev-radius-button);
  padding: 0 0.25rem;
  margin-left: 0.1rem;
}

/* --- nav ----------------------------------------------------------------- */

.nav {
  width: 100%;
  border-bottom: 1px solid var(--connev-border);
  background: var(--connev-bg-surface-alt);
}

.nav-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  flex: 1 1 auto;
}

.nav-link {
  color: var(--connev-text-secondary-strong);
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--connev-text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-portal {
  color: var(--connev-text-secondary-strong);
  font-size: 0.95rem;
}

.nav-actions .cta {
  padding: 0.55rem 1.1rem;
  border-radius: var(--connev-radius-button);
  font-size: 0.95rem;
}

/* --- hero ---------------------------------------------------------------- */

.hero {
  width: 100%;
  background: var(--connev-bg-chat);
  border-bottom: 1px solid var(--connev-border);
}

.hero-inner {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

.live-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.9rem;
  border: 1px solid var(--connev-border-strong);
  border-radius: var(--connev-radius-chip);
  background: var(--connev-bg-raised);
  color: var(--connev-text-secondary-strong);
  font-size: 0.85rem;
}

.live-dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: var(--connev-radius-chip);
  background: var(--connev-success);
}

.hero-copy h1 {
  margin-top: 1.5rem;
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

.hero-sub {
  margin-top: 1.25rem;
  max-width: 34rem;
  color: var(--connev-text-secondary-strong);
  font-size: 1.05rem;
}

.hero-ctas {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-metrics {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.metric {
  padding: 1.25rem 1.5rem;
  background: var(--connev-bg-surface);
  border: 1px solid var(--connev-border);
  border-radius: var(--connev-radius-card-lg);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

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

.metric-value {
  font-family: var(--connev-font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--connev-text-primary);
}

/* --- models -------------------------------------------------------------- */

.table-wrap {
  margin-top: 2rem;
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--connev-border);
  border-radius: var(--connev-radius-card-lg);
  background: var(--connev-bg-surface);
}

.models-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 34rem;
}

.models-table th,
.models-table td {
  text-align: left;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--connev-border);
}

.models-table th {
  color: var(--connev-text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.models-table tbody tr:last-child td {
  border-bottom-width: 0;
}

.model-name {
  color: var(--connev-text-primary-alt);
  font-weight: 600;
}

.model-vendor {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--connev-text-secondary-strong);
}

.marker {
  width: 0.9rem;
  height: 0.9rem;
  flex: 0 0 auto;
}

.model-tokens {
  font-family: var(--connev-font-mono);
  color: var(--connev-text-primary);
}

.model-release {
  font-family: var(--connev-font-mono);
  color: var(--connev-text-primary);
}

/* The losing mode variant is removed at render; this rule only defines the
 * pre-JS state, so the page never flashes both headers before boot() runs. It
 * is forward hardening: the UA [hidden] rule already wins today. */
[data-models-mode][hidden] {
  display: none;
}

.model-tier {
  display: inline-block;
  padding: 0.15rem 0.7rem;
  border: 1px solid var(--connev-border-strong);
  border-radius: var(--connev-radius-chip);
  background: var(--connev-bg-raised-alt);
  color: var(--connev-text-secondary-strong);
  font-family: var(--connev-font-mono);
  font-size: 0.8rem;
}

/* --- why ----------------------------------------------------------------- */

.cards {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.card {
  padding: 1.5rem;
  background: var(--connev-bg-surface);
  border: 1px solid var(--connev-border);
  border-radius: var(--connev-radius-card-lg);
}

.card h3 {
  font-size: 1.05rem;
}

.card p {
  margin-top: 0.6rem;
  color: var(--connev-text-secondary-strong);
  font-size: 0.95rem;
}

/* --- footer -------------------------------------------------------------- */

.footer {
  border-top: 1px solid var(--connev-border);
  color: var(--connev-text-secondary);
}

.footer-label {
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.institutions {
  margin-top: 0.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  color: var(--connev-text-primary-alt);
}

.stats-stamp {
  margin-top: 2rem;
  font-size: 0.85rem;
}

.stats-value {
  font-family: var(--connev-font-mono);
  color: var(--connev-text-secondary-strong);
}

/* --- responsive ---------------------------------------------------------- */

@media (min-width: 48rem) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .hero-inner {
    grid-template-columns: 1.35fr 1fr;
  }

  .hero-copy h1 {
    font-size: 3rem;
  }

  .cards {
    grid-template-columns: repeat(4, 1fr);
  }
}