/* ============================================
   COMPONENTS — Buttons, Cards, Tags, Nav
   ============================================ */

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  padding: var(--space-lg) 0;
  transition: all var(--duration-base) var(--ease-out);
  backdrop-filter: blur(0px);
  background: transparent;
}

.nav.scrolled {
  padding: var(--space-md) 0;
  backdrop-filter: blur(20px);
  background: rgba(8, 8, 10, 0.85);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  letter-spacing: -0.03em;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav__logo:hover {
  color: var(--color-accent);
}

.nav__logo span {
  color: var(--color-accent);
}

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

.nav__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav__link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration-base) var(--ease-out);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-text);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__cta {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-inverse);
  background: var(--color-accent);
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: all var(--duration-fast) var(--ease-out);
}

.nav__cta:hover {
  background: var(--color-accent-light);
  color: var(--color-text-inverse);
  box-shadow: var(--shadow-glow);
}

/* Mobile hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-text);
  transition: all var(--duration-base) var(--ease-out);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.9rem 2.2rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration-base) var(--ease-out);
  position: relative;
  overflow: hidden;
}

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

.btn--primary:hover {
  background: var(--color-accent-light);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
  color: var(--color-text-inverse);
}

.btn--outline {
  border: 1px solid var(--color-border-accent);
  color: var(--color-accent);
  background: transparent;
}

.btn--outline:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-subtle);
  transform: translateY(-1px);
}

.btn--ghost {
  color: var(--color-text-secondary);
  padding: 0.9rem 0;
}

.btn--ghost:hover {
  color: var(--color-accent);
}

.btn__arrow {
  transition: transform var(--duration-fast) var(--ease-out);
  font-size: 1.1em;
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}