/* ===========================================
   HEADER - Navigation & Logo
   =========================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  padding: var(--space-md) 0;
  background: transparent;
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(9, 13, 31, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: var(--space-sm) 0;
}

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

/* ===== LOGO ===== */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.logo img {
  height: 36px;
  width: auto;
  transition: opacity var(--transition-fast);
}

.logo:hover img {
  opacity: 0.8;
}

/* ===== DESKTOP NAVIGATION ===== */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

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

.nav-link {
  font-size: var(--font-small);
  font-weight: var(--weight-medium);
  color: rgba(253, 254, 254, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--pie-secondary);
  transition: width var(--transition-base);
}

.nav-link:hover {
  color: var(--pie-neutral-2);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--pie-neutral-2);
}

.nav-link.active::after {
  width: 100%;
  background: var(--pie-accent-1);
}

/* ===== HEADER CTA ===== */
.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-btn {
  padding: 0.625rem 1.25rem;
  font-size: var(--font-small);
}

/* ===== MOBILE TOGGLE ===== */
.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 8px;
}

.nav-mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--pie-neutral-2);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* Hamburger animation */
.nav-mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== MOBILE NAVIGATION ===== */
.nav-mobile {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: calc(var(--z-header) - 1);
  background: rgba(9, 13, 31, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  padding: var(--space-2xl);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.nav-mobile.active {
  opacity: 1;
  visibility: visible;
}

.nav-mobile-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.nav-mobile-link {
  font-size: var(--font-h3);
  font-weight: var(--weight-medium);
  color: var(--pie-neutral-2);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-mobile-link:hover {
  color: var(--pie-secondary);
}

.nav-mobile-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  width: 100%;
  max-width: 280px;
}

.nav-mobile-cta .btn {
  width: 100%;
}

/* Mobile app buttons */
.nav-mobile-apps {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  width: 100%;
  max-width: 280px;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-app-mobile {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(
    135deg,
    var(--pie-secondary) 0%,
    var(--pie-accent-1) 100%
  );
  color: var(--pie-primary);
  font-weight: var(--weight-semibold);
  font-size: var(--font-small);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-app-mobile svg {
  width: 20px;
  height: 20px;
}

.btn-app-mobile:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(41, 135, 207, 0.3);
}

/* ===== APPS DROPDOWN ===== */
.apps-dropdown {
  position: relative;
}

.apps-dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-sm));
  right: 0;
  min-width: 280px;
  background: rgba(22, 28, 45, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-sm);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-xl);
}

.apps-dropdown.active .apps-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.apps-dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition-fast);
}

.apps-dropdown-item:hover {
  background: rgba(255, 255, 255, 0.05);
}

.apps-dropdown-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 212, 170, 0.1);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.apps-dropdown-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--pie-secondary);
}

.apps-dropdown-text {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.apps-dropdown-text strong {
  color: var(--pie-neutral-2);
  font-size: var(--font-small);
  font-weight: var(--weight-semibold);
}

.apps-dropdown-text small {
  color: rgba(253, 254, 254, 0.6);
  font-size: 0.75rem;
}

.apps-dropdown-item .badge {
  font-size: 0.65rem;
  padding: 2px 6px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .nav-desktop {
    display: none;
  }

  .nav-mobile-toggle {
    display: flex;
  }
}