* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 450px;
}

.auth-card {
    background: white;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.tabs {
    display: flex;
    margin-bottom: 30px;
    border-bottom: 2px solid #f0f0f0;
}

.tab-btn {
    flex: 1;
    padding: 15px;
    background: none;
    border: none;
    font-size: 18px;
    font-weight: 600;
    color: #888;
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
}

.tab-btn.active {
    color: #667eea;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 3px;
    background: #667eea;
    border-radius: 3px 3px 0 0;
}

.auth-form {
    display: none;
    animation: fadeIn 0.5s ease;
}

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

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

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.input-with-icon {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-icon i {
    position: absolute;
    left: 15px;
    color: #888;
    font-size: 16px;
}

.input-with-icon .toggle-password {
    left: auto;
    right: 15px;
    cursor: pointer;
    transition: color 0.3s;
}

.input-with-icon .toggle-password:hover {
    color: #667eea;
}

input {
    width: 100%;
    padding: 15px 15px 15px 45px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    transition: all 0.3s ease;
}

input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

input.error {
    border-color: #ff4757;
}

.hint {
    display: block;
    margin-top: 5px;
    color: #888;
    font-size: 12px;
}

.password-strength {
    margin-top: 10px;
}

.strength-bar {
    height: 5px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 5px;
}

.strength-bar::before {
    content: '';
    display: block;
    height: 100%;
    width: 0%;
    background: #ff4757;
    transition: all 0.3s ease;
}

.strength-text {
    font-size: 12px;
    color: #888;
}

#strengthText {
    font-weight: 600;
}

.strength-weak .strength-bar::before {
    width: 25%;
    background: #ff4757;
}

.strength-medium .strength-bar::before {
    width: 50%;
    background: #ffa502;
}

.strength-strong .strength-bar::before {
    width: 75%;
    background: #2ed573;
}

.strength-very-strong .strength-bar::before {
    width: 100%;
    background: #2ed573;
}

#passwordMatch {
    font-weight: 600;
}

#passwordMatch.match {
    color: #2ed573;
}

#passwordMatch.mismatch {
    color: #ff4757;
}

.checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 14px;
    color: #555;
    position: relative;
    padding-left: 30px;
    user-select: none;
}

.checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    left: 0;
    height: 20px;
    width: 20px;
    background-color: #f0f0f0;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.checkbox:hover .checkmark {
    background-color: #e0e0e0;
}

.checkbox input:checked ~ .checkmark {
    background-color: #667eea;
}

.checkmark::after {
    content: "";
    position: absolute;
    display: none;
    left: 7px;
    top: 3px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox input:checked ~ .checkmark::after {
    display: block;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.forgot-link {
    color: #667eea;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.forgot-link:hover {
    color: #764ba2;
    text-decoration: underline;
}

.terms-link {
    color: #667eea;
    text-decoration: none;
}

.terms-link:hover {
    text-decoration: underline;
}

.btn {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.btn-primary {
    background: linear-gradient(90deg, #667eea, #764ba2);
    color: white;
    margin-bottom: 25px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 7px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 25px 0;
    color: #888;
    font-size: 14px;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid #e0e0e0;
}

.divider span {
    padding: 0 15px;
}

.social-auth {
    display: flex;
    gap: 15px;
}

.social-btn {
    flex: 1;
    padding: 12px;
    border: 2px solid #e0e0e0;
    background: white;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.social-btn:hover {
    border-color: #667eea;
    transform: translateY(-2px);
}

.social-btn.google:hover {
    background: #f8f8f8;
}

.social-btn.github:hover {
    background: #f8f8f8;
}

.success-message,
.error-message {
    display: none;
    padding: 15px;
    border-radius: 10px;
    margin-top: 20px;
    animation: slideIn 0.3s ease;
    align-items: center;
    gap: 10px;
}

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

.success-message {
    background: rgba(46, 213, 115, 0.1);
    border: 1px solid #2ed573;
    color: #2ed573;
}

.error-message {
    background: rgba(255, 71, 87, 0.1);
    border: 1px solid #ff4757;
    color: #ff4757;
}

.footer {
    text-align: center;
    margin-top: 30px;
    color: white;
    font-size: 14px;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 480px) {
    .auth-card {
        padding: 25px;
    }
    
    .social-auth {
        flex-direction: column;
    }
    
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .forgot-link {
        align-self: flex-start;
    }
}

 /* Add to client-login.css around the password strength section */
.strength-bar {
    height: 5px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 5px;
    position: relative;
}

.strength-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    transition: all 0.3s ease;
}

.strength-weak .strength-bar::before {
    width: 25%;
    background: #ff4757;
}

.strength-medium .strength-bar::before {
    width: 50%;
    background: #ffa502;
}

.strength-strong .strength-bar::before {
    width: 75%;
    background: #2ed573;
}

.strength-very-strong .strength-bar::before {
    width: 100%;
    background: #2ed573;
}