/* ============================================
   APEX Strategy — Components
   Nav, Buttons, Cards, Badges
   ============================================ */

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-md) 0;
  transition: background var(--duration-base) var(--ease-out),
              backdrop-filter var(--duration-base) var(--ease-out);
}

.nav.is-scrolled {
  background: rgba(8, 9, 10, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.nav__logo {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav__logo-mark {
  width: 28px;
  height: 28px;
  background: var(--accent);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--bg-primary);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--text-primary);
}

.nav__cta {
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 1.125rem;
  background: var(--text-primary);
  color: var(--bg-primary);
  border-radius: var(--radius-full);
  transition: opacity var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
}

.nav__cta:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.nav__cta:active {
  transform: translateY(0);
}

/* Mobile menu toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  padding: 2px 0;
}

.nav__toggle span {
  display: block;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform var(--duration-base) var(--ease-out),
              opacity var(--duration-base) var(--ease-out);
}

.nav__toggle.is-open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav__toggle.is-open span:nth-child(2) {
  opacity: 0;
}
.nav__toggle.is-open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile nav overlay */
.nav__mobile {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--bg-primary);
  padding: 6rem var(--space-xl) var(--space-xl);
  flex-direction: column;
  gap: var(--space-xl);
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.nav__mobile.is-open {
  display: flex;
  opacity: 1;
}

.nav__mobile a {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}

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

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  transition: opacity var(--duration-fast) var(--ease-out),
              transform var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn--primary {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.btn--primary:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.btn--primary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

.btn--ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
  background: var(--bg-hover);
  transform: translateY(-1px);
}

.btn--ghost:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ── Badge / Label ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent);
  padding: 0.375rem 0.875rem;
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius-full);
  background: var(--accent-dim);
}

.badge__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(0.8); }
}

/* ── Feature Card ── */
.card {
  position: relative;
  padding: var(--space-2xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out);
  overflow: hidden;
}

.card:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface);
}

.card__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  color: var(--accent);
  margin-bottom: var(--space-lg);
}

.card__title {
  font-size: 1.125rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.card__desc {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ── Stat Card ── */
.stat {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
}

.stat__number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat__label {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--border-subtle);
  border: none;
}