/* Form Validation States */
.form-control.is-valid {
    border: 2px solid #28a745 !important;
    padding-right: calc(1.5em + 0.75rem);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2328a745' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
    transition: all 0.3s ease;
}

.form-control.is-invalid {
    border: 2px solid #dc3545 !important;
    padding-right: calc(1.5em + 0.75rem);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
    animation: shake 0.3s;
}

.form-select.is-valid {
    border: 2px solid #28a745 !important;
    transition: all 0.3s ease;
}

.form-select.is-invalid {
    border: 2px solid #dc3545 !important;
    animation: shake 0.3s;
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-5px);
    }

    75% {
        transform: translateX(5px);
    }
}

.invalid-feedback {
    display: none;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: #dc3545;
    font-weight: 500;
}

    .invalid-feedback.d-block {
        display: block;
        animation: fadeIn 0.3s;
    }

.valid-feedback {
    display: none;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: #28a745;
    font-weight: 500;
}

    .valid-feedback.d-block {
        display: block;
        animation: fadeIn 0.3s;
    }

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Captcha Box */
.captcha-box {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border: 2px solid #dee2e6;
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    margin: 5px 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.captcha-question {
    font-size: 1.2rem;
    font-weight: bold;
    color: #667eea;
    margin-right: 15px;
}

.captcha-input {
    width: 100px;
    text-align: center;
    font-size: 1.5rem;
    font-weight: bold;
    padding: 10px;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    transition: all 0.3s ease;
}

    .captcha-input:focus {
        border-color: #667eea;
        box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
        outline: none;
    }

.captcha-refresh {
    background: none;
    border: none;
    color: #667eea;
    cursor: pointer;
    font-size: 1.2rem;
    margin-left: 10px;
    transition: transform 0.3s ease;
}

    .captcha-refresh:hover {
        transform: rotate(180deg);
    }

/* Submit Button States */
.btn-submit {
    position: relative;
    overflow: hidden;
}

    .btn-submit:disabled {
        opacity: 0.7;
        cursor: not-allowed;
    }

    .btn-submit .spinner-border {
        width: 1.2rem;
        height: 1.2rem;
        border-width: 0.15rem;
        margin-right: 8px;
    }

/* Loading Overlay */
.form-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    border-radius: 15px;
}

    .form-loading-overlay .spinner {
        width: 50px;
        height: 50px;
        border: 4px solid #f3f3f3;
        border-top: 4px solid #667eea;
        border-radius: 50%;
        animation: spin 1s linear infinite;
    }

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

    100% {
        transform: rotate(360deg);
    }
}

/* Success Message */
.alert-success-custom {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 20px;
    margin: 20px 0;
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}