frontend/src/components/common/Header.css

/* ============================================
   HEADER STYLES
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0.75rem 0;
  transition: all 0.3s ease;
  background: transparent;
}

.header--scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
  padding: 0.5rem 0;
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

/* Logo */
.header__logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.header__logo-img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
}

.header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.header__logo-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
}

.header--scrolled .header__logo-name {
  color: var(--color-primary-600);
}

.header__logo-sub {
  font-size: 0.7rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 0.02em;
}

.header--scrolled .header__logo-sub {
  color: var(--color-neutral-500);
}

/* Navigation */
.header__nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.header__nav-item {
  position: relative;
}

.header__nav-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: white;
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
}

.header--scrolled .header__nav-link {
  color: var(--color-neutral-700);
}

.header__nav-link:hover,
.header__nav-link--active {
  color: var(--color-primary-200);
  background: rgba(255, 255, 255, 0.1);
}

.header--scrolled .header__nav-link:hover,
.header--scrolled .header__nav-link--active {
  color: var(--color-primary-500);
  background: rgba(45, 106, 79, 0.06);
}

.header__chevron {
  font-size: 0.85rem;
  transition: transform 0.2s ease;
}

.header__nav-item:hover .header__chevron {
  transform: rotate(180deg);
}

/* Dropdown */
.header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  padding: 0.5rem;
  margin-top: 0.25rem;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.header__dropdown--right {
  left: auto;
  right: 0;
}

.header__dropdown-link {
  display: block;
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-neutral-700);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  width: 100%;
  text-align: left;
}

.header__dropdown-link:hover {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
}

.header__dropdown-link--danger:hover {
  background: #fee2e2;
  color: #EF4444;
}

.header__dropdown-user {
  display: flex;
  flex-direction: column;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-neutral-100);
  margin-bottom: 0.25rem;
}

.header__dropdown-user strong {
  font-size: 0.9rem;
  color: var(--color-neutral-900);
}

.header__dropdown-user span {
  font-size: 0.78rem;
  color: var(--color-neutral-500);
}

/* Actions */
.header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.header__donate-btn {
  animation: pulse 3s ease-in-out infinite;
}

.header__user-btn {
  display: flex;
  align-items: center;
  color: white;
  transition: color 0.3s ease;
}

.header--scrolled .header__user-btn {
  color: var(--color-neutral-600);
}

.header__user-btn:hover {
  color: var(--color-primary-200);
}

.header--scrolled .header__user-btn:hover {
  color: var(--color-primary-500);
}

.header__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-primary-500);
}

.header__mobile-toggle {
  display: none;
  color: white;
}

.header--scrolled .header__mobile-toggle {
  color: var(--color-neutral-700);
}

/* Mobile Menu */
.header__mobile {
  display: none;
  overflow: hidden;
  background: white;
  border-top: 1px solid var(--color-neutral-100);
}

.header__mobile-nav {
  display: flex;
  flex-direction: column;
  padding: 1rem 1.5rem 1.5rem;
}

.header__mobile-link {
  display: block;
  padding: 0.75rem 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-neutral-700);
  border-bottom: 1px solid var(--color-neutral-100);
}

.header__mobile-link--active {
  color: var(--color-primary-500);
}

.header__mobile-sub {
  padding-left: 1.25rem;
}

.header__mobile-sub-link {
  display: block;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  color: var(--color-neutral-500);
}

/* Responsive */
@media (max-width: 1024px) {
  .header__nav {
    display: none;
  }

  .header__mobile-toggle {
    display: flex;
  }

  .header__mobile {
    display: block;
  }

  .header__donate-btn {
    display: none;
  }
}

@media (max-width: 480px) {
  .header__logo-text {
    display: none;
  }
}