/* VertexStudio marketing site — Microsoft Copilot design language
   Loads design tokens from the Claude Copilot kit, then applies layout chrome. */
@import url("copilot-tokens.css");

html {
  color-scheme: light;
}

details summary::-webkit-details-marker {
  display: none;
}

.material-symbols-outlined {
  font-variation-settings: "FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;
}

body.cds-site {
  font-family: var(--font-text);
  font-size: var(--text-body);
  line-height: var(--leading-base);
  color: var(--fg-body);
  background: var(--bg-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body.cds-site ::selection {
  background: var(--accent-200);
  color: var(--fg-default);
}

body.cds-site :focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: inherit;
}

/* Header — Fluent bar */
.site-header {
  background: color-mix(in srgb, var(--bg-surface) 88%, transparent);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(24px) saturate(1.2);
}

.site-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--fg-default);
  font-weight: 600;
  font-size: var(--text-subtitle-2);
  letter-spacing: var(--tracking-tight);
  transition: opacity var(--dur-quick) var(--ease-standard);
}

.site-brand:hover {
  opacity: 0.85;
}

.site-brand img {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.site-nav-link,
.site-nav-btn {
  font-size: var(--text-body);
  font-weight: 500;
  color: var(--fg-muted);
  text-decoration: none;
  border: none;
  background: none;
  cursor: pointer;
  padding: var(--space-2) 0;
  transition: color var(--dur-quick) var(--ease-standard);
}

.site-nav-link:hover,
.site-nav-btn:hover {
  color: var(--accent-600);
}

.site-nav-link[aria-current="page"] {
  color: var(--fg-default);
  font-weight: 600;
}

.site-menu-summary {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  color: var(--fg-default);
}

.site-menu-panel {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  box-shadow: var(--shadow-2);
}

.site-menu-panel a,
.site-menu-panel button {
  font-size: var(--text-body);
  font-weight: 500;
  color: var(--fg-body);
}

.site-menu-panel a:hover,
.site-menu-panel button:hover {
  background: var(--bg-subtle);
  color: var(--accent-600);
}

/* Hero — primary CTA (Fluent deep blue, no brand gradient) */
.site-cta-ai {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-text);
  font-size: var(--text-body);
  font-weight: 600;
  line-height: 1.25;
  color: #fff;
  background: var(--accent-800);
  border: none;
  border-radius: var(--radius-pill);
  padding: var(--space-3) var(--space-6);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(14, 74, 120, 0.22);
  cursor: pointer;
  transition:
    background-color var(--dur-quick) var(--ease-standard),
    box-shadow var(--dur-quick) var(--ease-standard),
    transform var(--dur-fast) var(--ease-standard);
}

.site-cta-ai:hover {
  background: var(--accent-700);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1), 0 4px 12px rgba(14, 74, 120, 0.28);
}

.site-cta-ai:active {
  transform: scale(0.98);
}

/* Cards — elevation 1, optional hairline */
.site-card {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-1);
  border: 1px solid transparent;
}

.site-card:hover {
  box-shadow: var(--shadow-2);
}

/* Stat / data bands */
.site-stat-shell {
  background: var(--bg-canvas);
}

.site-stat-band {
  background: var(--bg-subtle);
}

@media (min-width: 768px) {
  .site-stat-shell {
    background: var(--bg-subtle);
  }
  .site-stat-band {
    background: transparent;
  }
}

/* Media frame */
.site-media-frame {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-1);
  border: 1px solid var(--border-subtle);
}

/* Playbook accordion / desktop */
.playbook-acc-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.32s cubic-bezier(0.33, 0, 0.67, 1);
}

.playbook-accordion-item.is-open .playbook-acc-panel {
  grid-template-rows: 1fr;
}

.playbook-acc-chev {
  transition: transform 0.32s cubic-bezier(0.33, 0, 0.67, 1);
  color: var(--fg-muted);
}

.playbook-accordion-item.is-open .playbook-acc-chev {
  transform: rotate(90deg);
}

.playbook-d-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.32s cubic-bezier(0.33, 0, 0.67, 1);
}

.playbook-d-item.is-open .playbook-d-panel {
  grid-template-rows: 1fr;
}

.playbook-d-chev {
  transition: transform 0.32s cubic-bezier(0.33, 0, 0.67, 1);
  color: var(--fg-muted);
}

.playbook-d-item.is-open .playbook-d-chev {
  transform: rotate(90deg);
}

.playbook-mob-btn:hover,
.playbook-d-item .group:hover {
  background: var(--bg-subtle);
}

.playbook-d-inject {
  background: var(--bg-subtle) !important;
  border-color: var(--border-subtle) !important;
}