/* ==========================================================================
   Components — header, buttons, badges, cards, etc.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-block: var(--space-4);
  transition: background-color var(--transition-interactive), backdrop-filter var(--transition-interactive), border-color var(--transition-interactive);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background: color-mix(in oklab, var(--color-bg) 70%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom-color: var(--color-divider);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  color: var(--color-text);
}

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

.nav-brand-mark { width: 28px; height: 28px; flex-shrink: 0; }

.nav-links {
  display: none;
  gap: clamp(var(--space-4), 2.5vw, var(--space-8));
  align-items: center;
  font-size: var(--text-sm);
}

@media (min-width: 860px) {
  .nav-links { display: flex; }
}

.nav-link {
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-1);
  position: relative;
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.theme-toggle {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.mobile-toggle {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

@media (min-width: 860px) {
  .mobile-toggle { display: none; }
}

@media (max-width: 859px) {
  .nav-right .nav-cta { display: none; }
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-6) var(--space-6);
  border-top: 1px solid var(--color-divider);
  background: color-mix(in oklab, var(--color-bg) 92%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}

.mobile-menu:not([hidden]) { display: flex; }

@media (min-width: 860px) {
  .mobile-menu { display: none !important; }
}

.mobile-menu-link {
  display: block;
  padding: var(--space-3) 0;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-divider);
}

.mobile-menu-link:last-child { border-bottom: 0; }
.mobile-menu-link:hover { color: var(--color-cobalt); }

@media (min-width: 860px) {
  .mobile-toggle { display: none; }
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: transform var(--transition-interactive), background var(--transition-interactive), box-shadow var(--transition-interactive), color var(--transition-interactive);
  will-change: transform;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
  box-shadow: var(--shadow-glow-cobalt);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-glow-cobalt), var(--shadow-md);
}

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

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

.btn-arrow {
  display: inline-block;
  transition: transform var(--transition-interactive);
}
.btn:hover .btn-arrow { transform: translateX(3px); }

/* --------------------------------------------------------------------------
   Eyebrow / section labels
   -------------------------------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-lime);
  box-shadow: 0 0 8px var(--color-lime);
}

/* --------------------------------------------------------------------------
   Section heading pattern
   -------------------------------------------------------------------------- */
.section-head {
  display: grid;
  gap: var(--space-5);
  margin-bottom: clamp(var(--space-10), 6vw, var(--space-16));
  max-width: 880px;
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  word-spacing: 0.06em;
  line-height: 1.05;
}

.section-lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 65ch;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   Card
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  padding: clamp(var(--space-6), 3vw, var(--space-10));
  border-radius: var(--radius-2xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: border-color var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
  overflow: hidden;
}

.card:hover {
  border-color: var(--color-text-muted);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* --------------------------------------------------------------------------
   Marquee — logos / clients / credentials
   -------------------------------------------------------------------------- */
.marquee {
  display: flex;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  gap: var(--space-16);
  padding-block: var(--space-6);
}

.marquee-track {
  display: flex;
  gap: var(--space-16);
  animation: marquee 40s linear infinite;
  flex-shrink: 0;
  padding-right: var(--space-16);
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-100%); }
}

.marquee-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: -0.01em;
  white-space: nowrap;
  flex-shrink: 0;
}

.marquee-item-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-text-faint);
}

/* --------------- Toast --------------- */
.dd-toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translate(-50%, 24px);
  background: #0A0A0B;
  color: #fff;
  padding: 12px 18px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.01em;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease, transform 220ms ease;
  z-index: 100;
}
.dd-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}
[data-theme="light"] .dd-toast {
  background: #0A0A0B;
  color: #fff;
}

/* Eyebrow on dark contact background */
.eyebrow--on-dark {
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.85);
  border-color: rgba(255, 255, 255, 0.12);
}

/* Ghost button override on dark contact background */
.btn--on-dark {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}
.btn--on-dark:hover { background: rgba(255, 255, 255, 0.06); }

/* Footer brand sizing */
.nav-brand--footer { font-size: var(--text-base); }

/* Credentials strip */
.credentials {
  padding-block: var(--space-10);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}