/* Alert Messages */
.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    display: none;
}

.alert-error {
    background: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.alert-success {
    background: #efe;
    color: #383;
    border: 1px solid #cfc;
}

/* Password strength bar */
.password-strength {
    margin-top: 5px;
    height: 4px;
    background: #e2e8f0;
    border-radius: 2px;
    overflow: hidden;
}

.strength-bar {
    height: 100%;
    width: 0%;
    transition: width 0.3s ease, background 0.3s ease;
}

.strength-bar.weak { width: 25%; background: #ef476f; }
.strength-bar.fair { width: 50%; background: #ffd166; }
.strength-bar.good { width: 75%; background: #06d6a0; }
.strength-bar.strong { width: 100%; background: #118ab2; }

.password-hint {
    font-size: 12px;
    color: #64748b;
    margin-top: 5px;
}