/* ──────────────────────────────────────────────────────────────────────────
   Flexam — site-level styles. Layered on top of tokens.css.
   ────────────────────────────────────────────────────────────────────────── */

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-1);
  color: var(--fg-1);
  font-family: var(--font-sans);
  font-size: var(--t-body-size);
  line-height: var(--t-body-lh);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4, h5, h6, p { margin: 0; }

button { font: inherit; }

/* Container */
.container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter-desk);
}
@media (max-width: 600px) {
  .container { padding: 0 var(--gutter-mobile); }
}

/* ── Nav ─────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 250, 250, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  height: var(--nav-height);
}
.nav-inner {
  height: 100%;
  display: flex; align-items: center; gap: 32px;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter-desk);
}
.nav-logo { display: inline-flex; align-items: center; }
.nav-logo img { height: 24px; }
.nav-menu {
  display: flex; align-items: center; gap: 32px; flex: 1;
}
.nav-links {
  display: flex; gap: 28px; flex: 1; align-items: center;
}
.nav-toggle {
  display: none;
  background: transparent; border: 0; padding: 8px; margin: 0 -8px;
  color: var(--fg-1); cursor: pointer; line-height: 0;
  border-radius: var(--radius-md);
}
.nav-toggle:hover { background: var(--bg-3); }
.nav-links .nav-link,
.nav-links a.nav-link {
  font-size: 14px; font-weight: 500; color: var(--fg-1);
  padding: 6px 2px;
  border-bottom: 1px solid transparent;
  display: inline-flex; align-items: center;
  transition: color var(--duration-base) var(--ease-standard);
}
.nav-links a:hover { color: var(--brand-blue-link); }
.nav-links a.is-active { color: var(--brand-blue-link); }
.nav-cta { white-space: nowrap; }

/* Dropdown group */
.nav-group { position: relative; padding: 18px 0; margin: -18px 0; }
.nav-link--has-menu { cursor: pointer; }
.nav-dropdown {
  position: absolute;
  top: calc(100% - 14px);
  left: -16px;
  min-width: 360px;
  padding: 8px;
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-menu);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-4px);
  transition:
    opacity var(--duration-base) var(--ease-standard),
    transform var(--duration-base) var(--ease-standard);
  z-index: 100;
}
.nav-group:hover .nav-dropdown,
.nav-group:focus-within .nav-dropdown {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.nav-group:hover .nav-link--has-menu { color: var(--brand-blue-link); }
.nav-dropdown__inner { display: flex; flex-direction: column; gap: 4px; }

.nav-dropdown__head {
  display: flex; flex-direction: column; gap: 4px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-3);
  margin-bottom: 4px;
  transition: background var(--duration-base) var(--ease-standard);
}
.nav-dropdown__head:hover { background: var(--brand-blue-06); }
.nav-dropdown__head .mono-label { color: var(--brand-blue-link); }
.nav-dropdown__head-title { font-size: 14px; font-weight: 500; color: var(--fg-1); }

.nav-dropdown__list { display: flex; flex-direction: column; gap: 2px; }
.nav-dropdown__item {
  display: flex; flex-direction: column; gap: 2px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  transition: background var(--duration-base) var(--ease-standard);
}
.nav-dropdown__item:hover { background: var(--bg-3); }
.nav-dropdown__kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--fg-3);
}
.nav-dropdown__label { font-size: 14px; color: var(--fg-1); font-weight: 500; }

@media (max-width: 720px) {
  .nav-inner { gap: 12px; padding: 0 var(--gutter-mobile); }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }

  /* nav-menu becomes a dropdown panel and stops taking flex space —
     so push lang-switch + toggle to the right via auto margin */
  .nav .lang-switch { margin-left: auto !important; }

  .nav-menu {
    position: absolute;
    top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    flex: none;
    background: rgba(250, 250, 250, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 8px var(--gutter-mobile) 16px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition:
      opacity var(--duration-base) var(--ease-standard),
      transform var(--duration-base) var(--ease-standard);
  }
  .nav.is-open .nav-menu {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-menu .nav-links {
    flex-direction: column; align-items: stretch; gap: 0; flex: none;
  }
  .nav-menu .nav-links .nav-link,
  .nav-menu .nav-links a.nav-link {
    font-size: 16px;
    padding: 14px 4px;
    border-bottom: 1px solid var(--border-subtle);
  }
  .nav-menu .nav-group { padding: 0; margin: 0; }
  .nav-menu .nav-cta {
    display: inline-flex; justify-content: center;
    margin-top: 16px;
  }

  /* Use-cases dropdown becomes a plain link target on mobile */
  .nav-dropdown { display: none; }
  /* Hide the chevron — there's no submenu on mobile */
  .nav-link--has-menu svg { display: none; }
}

/* ── Section primitives ──────────────────────────────────────────────────── */
.section { padding: 96px 0; }
.section-tight { padding: 64px 0; }
.section-divider { border-top: 1px solid var(--border-subtle); }
.section-paper { background: var(--white); }
.section-ink { background: var(--ink); color: var(--white); }
.section-ink h1, .section-ink h2, .section-ink h3 { color: var(--white); }
.section-ink p { color: var(--dark-text-2); }

@media (max-width: 600px) {
  .section { padding: 64px 0; }
  .section-tight { padding: 48px 0; }
}

/* Mono label */
.mono-label {
  font-family: var(--font-mono);
  font-size: var(--t-mono-size);
  letter-spacing: var(--t-mono-tracking);
  text-transform: uppercase;
  color: var(--fg-3);
  font-weight: 500;
}

/* Display heading utilities */
.display {
  font-size: clamp(40px, 6.4vw, 72px);
  line-height: 1.02;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.h1 {
  font-size: clamp(32px, 4.4vw, 48px);
  line-height: 1.1;
  font-weight: 400;
  letter-spacing: -0.02em;
}
.h2 {
  font-size: clamp(24px, 3.0vw, 36px);
  line-height: 1.2;
  font-weight: 400;
  letter-spacing: -0.01em;
}
.h3 { font-size: 20px; line-height: 1.4; font-weight: 500; }
.lead {
  font-size: 18px;
  line-height: 1.56;
  color: var(--fg-2);
  max-width: 60ch;
  text-wrap: pretty;
}

/* Buttons (using ds- classes from tokens.css; add link compatibility) */
a.ds-btn { text-decoration: none; }

/* Card variants */
.card {
  background: var(--bg-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 28px;
  transition: border-color var(--duration-base) var(--ease-standard);
}
.card:hover { border-color: var(--border-strong); }
.card-link { display: block; cursor: pointer; }
.card-link:hover {
  border-color: var(--brand-blue-30);
}

/* Image placeholder — purple-toned, consistent with toolpath palette */
.placeholder {
  background:
    radial-gradient(ellipse at 30% 30%, rgba(124,58,237,0.18), transparent 60%),
    radial-gradient(ellipse at 70% 70%, rgba(52,38,254,0.15), transparent 60%),
    linear-gradient(135deg, #1a1530 0%, #0f0e1c 100%);
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.5);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
}
.placeholder::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: center;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.placeholder span {
  position: relative;
  padding: 6px 12px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 9999px;
  background: rgba(0,0,0,0.3);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 64px 0 48px;
  background: var(--bg-1);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1fr;
  gap: 48px;
}
@media (max-width: 900px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 600px) {
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
.footer-col-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--fg-3);
  margin-bottom: 16px;
}
.footer-links {
  display: flex; flex-direction: column; gap: 10px;
}
.footer-links a {
  font-size: 14px; color: var(--fg-2);
  transition: color var(--duration-base) var(--ease-standard);
}
.footer-links a:hover { color: var(--brand-blue-link); }
.footer-meta {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  font-size: 12px; color: var(--fg-3);
}
.footer-meta__links {
  display: flex; gap: 16px;
}
.footer-meta__links a {
  color: var(--fg-3);
  transition: color var(--duration-base) var(--ease-standard);
}
.footer-meta__links a:hover { color: var(--brand-blue-link); }

/* Marker for headings — kept as a layout class; dot removed */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  margin-bottom: 20px;
}

/* Two-column hero pattern */
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
}

/* Definition list / spec table */
.spec {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--border-subtle);
}
.spec-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-subtle);
  align-items: baseline;
}
.spec-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--fg-3);
}
.spec-row dd {
  margin: 0;
  color: var(--fg-1);
  font-size: 15px;
  line-height: 1.5;
}
@media (max-width: 600px) {
  .spec-row { grid-template-columns: 1fr; gap: 6px; padding: 14px 0; }
}

/* Pill chip */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--border-strong);
  border-radius: 9999px;
  font-size: 13px;
  color: var(--fg-1);
  background: var(--bg-2);
}
.chip .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--brand-blue);
}

/* Numbered marker */
.num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.2px;
  color: var(--fg-3);
}

/* Prose for long text (about, use cases) */
.prose p + p { margin-top: 16px; }
.prose p { color: var(--fg-2); font-size: 16px; line-height: 1.65; }
.prose strong { color: var(--fg-1); font-weight: 500; }

/* CTA block (large dark band) */
.cta-band {
  background: var(--ink);
  color: var(--white);
  border-radius: var(--radius-xl);
  padding: 64px 56px;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 40px;
  align-items: end;
}
.cta-band h2 { color: var(--white); }

/* ──────────────────────────────────────────────────────────────────────────
   Compatibility strip — "Use Flexam with any cell"
   ────────────────────────────────────────────────────────────────────────── */
.compat-strip {
  padding: 72px 0 56px;
  border-top: 1px solid var(--border-1);
  border-bottom: 1px solid var(--border-1);
  background: var(--bg-1);
}
.compat-row {
  display: grid;
  grid-template-columns: minmax(220px, 280px) 1fr;
  gap: 56px;
  align-items: center;
}
.compat-row__title .mono-label {
  margin-bottom: 12px;
}
.compat-row__h {
  font-family: var(--font-sans);
  font-size: 28px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 400;
  color: var(--fg-2);
  margin: 0;
}
.compat-row__h strong {
  color: var(--fg-1);
  font-weight: 600;
}
.compat-marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 3%, #000 97%, transparent);
          mask-image: linear-gradient(to right, transparent, #000 3%, #000 97%, transparent);
  flex: 1;
  min-width: 0;
  display: flex;
}
.compat-marquee__track {
  display: inline-flex;
  align-items: center;
  gap: 56px;
  padding: 12px 28px 12px 0;
  animation: compat-scroll 40s linear infinite;
  white-space: nowrap;
  flex-shrink: 0;
}
.compat-marquee:hover .compat-marquee__track {
  animation-play-state: paused;
}
@keyframes compat-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(calc(-100% - 56px)); }
}
.compat-mark {
  height: 28px;
  width: auto;
  flex-shrink: 0;
  color: var(--fg-2);
  opacity: 0.78;
  transition: color 160ms ease, opacity 160ms ease;
}
.compat-mark:hover { color: var(--fg-1); opacity: 1; }
.compat-disclaimer {
  grid-column: 1 / -1;
  margin-top: 0px;
  font-size: 12px;
  color: var(--fg-3);
  font-weight: 300;
  max-width: 64ch;
}
.compat-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px dashed var(--border-1);
  font-size: 13px;
  color: var(--fg-3);
}
.compat-foot__codes {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-2);
}
@media (max-width: 860px) {
  .compat-row { grid-template-columns: 1fr; gap: 28px; }
  .compat-foot { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* ──────────────────────────────────────────────────────────────────────────
   Display accent — purple "x" stroke from the wordmark
   ────────────────────────────────────────────────────────────────────────── */
.display-accent {
  color: var(--viz-purple);
  font-weight: inherit;
}

/* ──────────────────────────────────────────────────────────────────────────
   Bare credibility logos — no surrounding box, no captions
   ────────────────────────────────────────────────────────────────────────── */
.creds--bare {
  padding: 36px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.creds-bare {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 32px 56px;
}
.cred-bare {
  display: inline-flex;
  align-items: center;
  opacity: 0.7;
  transition: opacity 160ms ease;
}
.cred-bare:hover { opacity: 1; }
.cred-bare img {
  height: 44px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}
@media (max-width: 720px) {
  .creds-bare { justify-content: flex-start; gap: 20px 32px; }
  .cred-bare img { height: 36px; }
}

.cta-band p { color: var(--dark-text-2); margin-top: 16px; max-width: 50ch; }
.cta-band .actions { display: flex; gap: 12px; align-items: center; justify-self: end; }
@media (max-width: 720px) {
  .cta-band { grid-template-columns: 1fr; padding: 40px 28px; }
  .cta-band .actions { justify-self: start; }
}