header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0; 
}

header .medical-navbar {
    transition: all 0.3s ease;
}

header .medical-navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 8px 32px rgba(0, 80, 130, 0.02);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

header .navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    position: relative;
}

header .navbar-brand {
    display: flex;
    align-items: center;
    z-index: 1001;
}

header .logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

header .logo-container:hover {
    transform: scale(1.05);
}

header .logo-container img {
    height: auto;
    height: 55px;
}

header .navbar-menu {
    display: flex;
    align-items: center;
}

header .navbar-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

header .nav-item {
    position: relative;
}

header .nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 12px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

header .nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    mix-blend-mode: overlay;
    pointer-events: none;
    transition: left 0.5s ease;
}

header .nav-link:hover::before {
    left: 100%;
}

header .nav-link:hover,
header .nav-link.active {
    color: var(--primary-color);
    transform: translateY(-2px);
}

header .nav-icon {
    font-size: 1rem;
    transition: transform 0.3s ease;
    color: var(--primary-color);
}

header .navbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

header .action-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

header .search-btn {
    background: rgba(0, 80, 130, 0.1);
    color: var(--primary-color);
    width: 44px;
    height: 44px;
    justify-content: center;
}
header .search-btn i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

header .search-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.05);
}

header .search-btn:hover i {
    color: white;
}

header .appointment-btn {
    background: linear-gradient(135deg, var(--primary-color), #0066a8);
    color: white;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(0, 80, 130, 0.3);
}

header .appointment-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

header .appointment-btn:hover::before {
    left: 100%;
}

header .appointment-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 80, 130, 0.4);
}

header .mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

header .toggle-line {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

header .mobile-toggle.active .toggle-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

header .mobile-toggle.active .toggle-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

header .mobile-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    border-radius: 0 0 20px 20px;
    padding: 2rem;
    transform: translateY(-20px);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

header .mobile-menu.active {
    display: block;
    transform: translateY(0);
    opacity: 1;
}

header .mobile-nav {
    list-style: none;
    margin: 0;
    padding: 0;
}

header .mobile-nav li {
    margin-bottom: 0.5rem;
}

header .mobile-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    border-radius: 12px;
    transition: all 0.3s ease;
}


header .mobile-link i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

header .mobile-link:hover {
    background: rgba(0, 80, 130, 0.08);
    color: var(--primary-color);
    transform: translateX(10px);
}

header .mobile-actions {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 80, 130, 0.1);
}

header .mobile-appointment-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    background: linear-gradient(135deg, var(--primary-color), #0066a8);
    color: white;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

header .mobile-appointment-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 80, 130, 0.4);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1024px) {
    header .navbar-container {
        padding: 1rem 1.5rem;
    }
    
    header .navbar-nav {
        gap: 0.25rem;
    }
    
    header .nav-link {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }

    header .navbar-actions {
        margin-left: auto;
    }

    header .mobile-toggle {
        margin-left: 10px;
    }
}

@media (max-width: 768px) {
    header .navbar-menu,
    header .navbar-actions .appointment-btn {
        display: none;
    }
    
    header .mobile-toggle {
        display: flex;
    }
    
    header .navbar-container {
        padding: 1rem;
    }
    
    header .logo-icon {
        font-size: 1.75rem;
    }
    
    header .brand-text {
        font-size: 1.25rem;
    }
}

@media (max-width: 480px) {
    header .navbar-container {
        padding: 0.75rem 1rem;
    }
    
    header .mobile-menu {
        padding: 1.5rem;
    }
    
    header .brand-text {
        font-size: 1.1rem;
    }
}

header .scroll-indicator {
    position: absolute;
    top: 0;
    left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), #0066a8);
    border-radius: 0 2px 2px 0;
}