/* ─── Navigation ───────────────────────────────────────────── */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(12, 17, 24, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-base) var(--ease-hover);
}

.nav.scrolled {
  border-bottom-color: var(--color-border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-8);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-logo span {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  text-transform: lowercase;
}

/* Desktop links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-links a {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  color: var(--color-text-muted);
  transition: color var(--duration-base) var(--ease-hover);
}

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

/* App Store badge in nav */
.nav-badge-link {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  transition: opacity var(--duration-base) var(--ease-hover),
              transform var(--duration-base) var(--ease-hover);
}

.nav-badge-link:hover {
  opacity: 0.8;
  transform: scale(1.03);
}

.nav-app-store-badge {
  display: block;
  height: 36px;
  width: auto;
}

.nav-badge-drawer {
  margin-top: var(--space-8);
}

.nav-badge-drawer .nav-app-store-badge {
  height: 48px;
  width: auto;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  color: var(--color-text);
  padding: var(--space-2);
}

/* ─── Mobile drawer ────────────────────────────────────────── */

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 200;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-hover);
}

.nav-overlay.open {
  display: block;
  opacity: 1;
}

.nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  background: var(--color-bg-elevated);
  z-index: 300;
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-fluid);
  display: flex;
  flex-direction: column;
  padding: var(--space-8);
}

.nav-drawer.open {
  transform: translateX(0);
}

.nav-close {
  align-self: flex-end;
  color: var(--color-text);
  padding: var(--space-2);
  margin-bottom: var(--space-8);
}

.nav-drawer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  flex: 1;
}

.nav-drawer-links a {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  transition: color var(--duration-base) var(--ease-hover);
}

.nav-drawer-links a:hover {
  color: var(--color-text);
}


/* ─── Responsive ───────────────────────────────────────────── */

@media (max-width: 768px) {
  .nav-links,
  .nav > .nav-inner > .nav-badge-link {
    display: none;
  }

  .nav-hamburger {
    display: flex;
    align-items: center;
  }

  .nav-inner {
    padding: 0 var(--space-4);
  }
}