.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.greeting-banner {
  padding: 1rem 0;
  margin-bottom: 1.5rem;
}

.greeting-banner h2 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  letter-spacing: 0.5px;
}

.greeting-banner p {
  display: none;
}

.navbar {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  color: var(--text-primary);
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-md);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.nav-brand {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: 0.5px;
  font-family: 'Poppins', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.nav-profile {
  display: flex;
  align-items: center;
  margin: 0 0.5rem;
}

.nav-profile-pic {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--accent-primary);
  cursor: pointer;
  transition: all 0.3s ease;
  margin-right: 10px;
}

.nav-profile-pic:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.nav-profile-pic-placeholder {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-primary);
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid var(--accent-primary);
  cursor: pointer;
  transition: all 0.3s ease;
}

.nav-profile-pic-placeholder:hover {
  transform: scale(1.1);
  box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.nav-links button {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--accent-primary);
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  position: relative;
}

.nav-links button:hover {
  background: var(--accent-primary);
  color: var(--bg-primary);
  transform: translateY(-2px);
}

/* Icon button styling */
.nav-icon-btn {
  border: none !important;
  background: transparent !important;
  color: var(--text-primary) !important;
  padding: 0.5rem !important;
  font-size: 1.5rem !important;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50% !important;
  transition: all 0.3s ease;
  position: relative;
}

.nav-icon-btn:hover {
  background: rgba(0, 212, 255, 0.1) !important;
  transform: scale(1.15);
  color: var(--accent-primary);
}

.nav-icon-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.nav-icon-btn.rotating {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.theme-icon {
  width: 35px;
  height: 35px;
  margin-right: 23px;
}

.nav-icon-btn svg {
  width: 28px;
  height: 28px;
}

.nav-logout-btn {
  font-size: 1.8rem !important;
  width: 50px !important;
  height: 50px !important;
  margin-left: auto;
  margin-right: 1rem;
}

.logout-icon {
  width: 35px;
  height: 35px;
}

.logout-text {
  font-size: 0.85rem;
  font-weight: 600;
  margin-left: 0.5rem;
  white-space: nowrap;
}

.nav-logout-btn:hover .logout-icon {
  filter: invert(20%) brightness(1.4) hue-rotate(320deg);
}
.chat-icon {
  width: 35px;
  height: 35px;
}

.discover-icon {
  width: 45px;
  height: 45px;
}

.matches-icon {
  width: 40px;
  height: 40px;
}

.like-icon {
  width: 35px;
  height: 35px;
}
.nav-logout-btn:hover {
  background: rgba(255, 71, 87, 0.15) !important;
  color: #ff4757;
  transform: scale(1.2) !important;
  box-shadow: 0 0 20px rgba(255, 71, 87, 0.4);
}

.nav-btn-with-badge {
  position: relative;
}

.notification-badge {
  position: absolute;
  top: 0px;
  right: 0px;
  background: #ff4757;
  color: white;
  border-radius: 50%;
  min-width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  border: 2px solid var(--bg-secondary);
  box-shadow: 0 4px 12px rgba(255, 71, 87, 0.4);
  white-space: nowrap;
  padding: 0 4px;
}

.notification-badge.likes-badge {
  background: linear-gradient(135deg, #ff4757, #ff006e);
}

.main-content {
  flex: 1;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.error-message {
  background: rgba(255, 0, 110, 0.1);
  color: #ff006e;
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  border-left: 4px solid #ff006e;
  font-weight: 500;
}

.success-message {
  background: rgba(0, 212, 255, 0.1);
  color: #00d4ff;
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  border-left: 4px solid #00d4ff;
  font-weight: 500;
}

.empty-state {
  text-align: center;
  padding: 4rem 2rem;
}

.empty-state h2 {
  margin-bottom: 1rem;
  color: var(--text-primary);
  font-size: 1.8rem;
}

.empty-state p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.empty-state button {
  padding: 0.8rem 2rem;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: var(--bg-primary);
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.empty-state button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.empty-state a:hover {
  text-decoration: none;
  background-color: #0056b3;
}