/* Global Header Styles */
.main-header {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0;
}

@media (max-width: 768px) {
    .main-header {
        z-index: 1002;
    }
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

@media (max-width: 768px) {
    .header-container {
        gap: 0;
    }
}

.logo a {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a1a1a;
    text-decoration: none;
    letter-spacing: -0.5px;
    text-transform: none;
    transition: color 0.3s ease;
}

.logo a:hover {
    color: #3e3e3e;
}

.main-nav {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    color: #4a5568;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    text-transform: lowercase;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #3e3e3e;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #3e3e3e;
    transition: width 0.3s ease;
}

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

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

.btn-login,
.btn-signup {
    padding: 0.6rem 1.5rem;
    border: none;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: lowercase;
}

.btn-login {
    background: transparent;
    color: #4a5568;
    border: 1px solid #e2e8f0;
}

.btn-login:hover {
    background: #f7fafc;
    border-color: #cbd5e0;
}

.btn-signup {
    background: #2c384d;
    color: #ffffff;
}

.btn-signup:hover {
    background: #3d4a5f;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(44, 56, 77, 0.3);
}

.btn-logout {
    padding: 0.6rem 1.5rem;
    border: 1px solid #ea4335;
    border-radius: 25px;
    background: transparent;
    color: #ea4335;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: lowercase;
}

.btn-logout:hover {
    background: #ea4335;
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(234, 67, 53, 0.3);
}

/* User Avatar */
.user-avatar-container {
    position: relative;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid #4a6fa5;
    background: #f8f9fa;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    padding: 0;
    overflow: hidden;
}

.user-avatar:hover {
    border-color: #3a5a8a;
    transform: scale(1.05);
    box-shadow: 0 2px 8px rgba(74, 111, 165, 0.3);
}

.avatar-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.avatar-initials {
    font-size: 0.9rem;
    font-weight: 600;
    color: #4a6fa5;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* User Dropdown */
.user-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1000;
    overflow: hidden;
}

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

.user-info {
    padding: 1rem;
    border-bottom: 1px solid #e8e8e8;
}

.user-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: #1a1a1a;
    word-break: break-word;
}

.dropdown-divider {
    height: 1px;
    background: #e8e8e8;
    margin: 0.5rem 0;
}

.dropdown-item {
    width: 100%;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #666666;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    text-transform: none;
}

.dropdown-item:hover {
    background: #f8f9fa;
    color: #1a1a1a;
}

.dropdown-item svg {
    flex-shrink: 0;
    color: #4a6fa5;
}

.dropdown-item#logoutBtn svg,
.dropdown-item#mobileLogoutBtn svg {
    color: #ea4335;
}

.dropdown-item span {
    flex: 1;
}

/* Mobile Avatar */
.mobile-avatar-wrapper {
    display: none;
    margin-right: 0;
    margin-left: auto;
}

.mobile-avatar {
    margin: 0;
}

.mobile-user-avatar {
    width: 36px;
    height: 36px;
}

.mobile-dropdown {
    right: 0;
    left: auto;
}

@media (max-width: 768px) {
    .mobile-avatar-wrapper {
        display: block;
        order: 2;
        margin-left: auto;
        margin-right: 0.75rem;
    }
    
    .header-actions {
        display: none;
    }
    
    .burger-menu {
        order: 3;
        margin-left: 0;
        margin-right: 0;
    }
    
    .user-avatar {
        width: 36px;
        height: 36px;
    }
    
    .avatar-initials {
        font-size: 0.8rem;
    }
    
    .user-dropdown {
        min-width: 180px;
    }
}

/* Burger Menu */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: relative;
}

.burger-menu span {
    width: 100%;
    height: 3px;
    background: #1a1a1a;
    border-radius: 3px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.burger-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.burger-menu.active span:nth-child(2) {
    opacity: 0;
}

.burger-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Actions */
.mobile-actions {
    display: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        padding: 1rem 1.5rem;
        position: relative;
    }

    .burger-menu {
        display: flex;
        z-index: 1003;
    }

    .header-actions {
        display: none;
    }

    .mobile-actions {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        width: 100%;
        margin-top: 1rem;
        padding-top: 1.5rem;
        border-top: 1px solid #e2e8f0;
    }

    .main-nav {
        display: flex;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        width: 100%;
        height: 0;
        background: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 0 1.5rem;
        gap: 1.5rem;
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        transition: height 0.3s ease, opacity 0.3s ease, padding 0.3s ease, visibility 0s linear 0.3s;
        overflow: hidden;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .main-nav.active {
        height: calc(100vh - 70px);
        padding: 2rem 1.5rem;
        opacity: 1;
        visibility: visible;
        transition: height 0.3s ease, opacity 0.3s ease, padding 0.3s ease, visibility 0s linear 0s;
        overflow-y: auto;
    }

    .nav-link {
        width: 100%;
        padding: 0.75rem 0;
        font-size: 1.1rem;
    }

    .nav-link::after {
        display: none;
    }

    .mobile-btn-login,
    .mobile-btn-signup {
        width: 100%;
        padding: 0.9rem 1.5rem;
        font-size: 1rem;
    }
}