nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  min-height: 64px;
  padding: 0 24px;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.07);
}

.nav-inner {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 40px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: inherit;
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--purple, #5b4ef8);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 0 0 0 20px;
  padding: 0;
  list-style: none;
  font-size: 0.9rem;
  color: #444444;
}

.nav-links li {
  list-style: none;
}

.nav-links li a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: var(--purple, #5b4ef8);
  font-weight: 600;
}

.nav-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

.btn-ghost,
.btn-nav-purple,
.nav-user-btn {
  font: inherit;
}

.btn-ghost {
  border: none;
  background: none;
  color: #333333;
  padding: 8px 14px;
  font-size: 0.9rem;
}

.btn-ghost:hover {
  color: var(--purple, #5b4ef8);
}

.btn-nav-purple {
  border: none;
  border-radius: 10px;
  background: var(--purple, #5b4ef8);
  color: #ffffff;
  padding: 9px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.2s ease;
}

.btn-nav-purple:hover {
  background: var(--purple-dark, #4338e0);
}

.nav-user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1.5px solid var(--border, #e5e7eb);
  border-radius: 24px;
  padding: 6px 14px 6px 8px;
  background: #ffffff;
  color: var(--dark, #0f1117);
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  font-size: 0.9rem;
  font-weight: 600;
}

.nav-user-btn:hover {
  border-color: var(--purple, #5b4ef8);
  box-shadow: 0 2px 10px rgba(91, 78, 248, 0.1);
}

.nav-user-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--purple, #5b4ef8);
  color: #ffffff;
  display: grid;
  place-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
  overflow: hidden;
}

.nav-user-avatar.has-image {
  background: #ffffff;
}

.nav-user-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.nav-user-btn svg {
  width: 14px;
  height: 14px;
  color: var(--gray-text, #6b7280);
}

.nav-dropdown-pub {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 210px;
  padding: 8px 0;
  background: #ffffff;
  border: 1px solid var(--border, #e5e7eb);
  border-radius: 14px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  display: none;
  z-index: 300;
}

.nav-dropdown-pub.open {
  display: block;
}

.nav-dd-header {
  padding: 12px 18px 10px;
  border-bottom: 1px solid var(--border, #e5e7eb);
  margin-bottom: 4px;
}

.nav-dd-header strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
}

.nav-dd-header span {
  font-size: 0.8rem;
  color: var(--gray-text, #6b7280);
}

.nav-dd-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  font-size: 0.88rem;
  color: var(--dark, #0f1117);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s ease;
}

.nav-dd-item:hover {
  background: var(--gray-light, #f3f4f8);
}

.nav-dd-item svg {
  width: 16px;
  height: 16px;
  color: var(--gray-text, #6b7280);
  flex-shrink: 0;
}

.nav-dd-divider {
  height: 1px;
  background: var(--border, #e5e7eb);
  margin: 4px 0;
}

.nav-dd-item.logout {
  color: #ef4444;
}

.nav-dd-item.logout svg {
  color: #ef4444;
}

@media (max-width: 900px) {
  nav {
    padding: 0 16px;
  }

  .nav-inner {
    gap: 18px;
  }

  .nav-links {
    gap: 16px;
    margin-left: 0;
    font-size: 0.85rem;
  }
}

@media (max-width: 760px) {
  nav {
    padding: 14px 16px;
  }

  .nav-inner {
    flex-wrap: wrap;
    row-gap: 12px;
  }

  .nav-links {
    order: 3;
    width: 100%;
    flex-wrap: wrap;
    gap: 12px 18px;
    padding-bottom: 2px;
  }

  .nav-right {
    margin-left: auto;
  }
}

@media (max-width: 520px) {
  .nav-right {
    width: 100%;
    justify-content: flex-end;
    flex-wrap: wrap;
  }

  .nav-user-btn,
  .btn-nav-purple,
  .btn-ghost {
    min-height: 40px;
  }
}