.auth-button {
    padding: 0.4rem 0.9rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.8rem;
    white-space: nowrap;
}

.auth-button:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.user-menu {
    position: relative;
}

.user-menu-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.user-menu-button:hover {
    background: var(--primary-dark);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    min-width: 200px;
    z-index: 1000;
    display: none;
}

.user-dropdown.show {
    display: block;
}

.user-dropdown-header {
    padding: 1rem;
    border-bottom: 1px solid #e0e0e0;
}

.user-dropdown-header strong {
    display: block;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.user-dropdown-header small {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.user-dropdown-item {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: background 0.2s;
}

.user-dropdown-item:hover {
    background: var(--bg-gray);
}

.user-dropdown-divider {
    height: 1px;
    background: #e0e0e0;
    margin: 0.5rem 0;
}

.auth-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.auth-modal.show {
    display: flex;
}

.auth-modal-content {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    max-width: 450px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    position: relative;
}

.auth-modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
}

.auth-modal-close:hover {
    background: var(--bg-gray);
    color: var(--text-dark);
}

.auth-modal-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-modal-header h2 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.75rem;
}

.auth-modal-header p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.auth-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    background: var(--bg-gray);
    padding: 0.25rem;
    border-radius: 8px;
}

.auth-tab {
    flex: 1;
    padding: 0.75rem;
    background: transparent;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--text-dark);
}

.auth-tab.active {
    background: white;
    color: var(--primary-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

.auth-form-group {
    margin-bottom: 1.25rem;
}

.auth-form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.auth-form-group input {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.auth-form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.auth-submit {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 1rem;
}

.auth-submit:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(45, 80, 22, 0.3);
}

.auth-submit:disabled {
    background: #ccc;
    cursor: not-allowed;
    transform: none;
}

.auth-alert {
    padding: 0.875rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    display: none;
}

.auth-alert.show {
    display: block;
}

.auth-alert.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.auth-alert.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

@media (max-width: 768px) {
    .auth-modal-content {
        padding: 1.5rem;
        max-width: 95%;
    }

    .user-dropdown {
        right: -50px;
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}