/* Felder nur unterstrichen, keine Rahmen */
.kg-contact-form .contact-input,
.kg-contact-form .contact-select {
    border: none; /* Kein Standard-Rahmen */
    border-bottom: 1px solid rgba(0,0,0,.3); /* Dezente Unterstreichung */
    border-radius: 0; /* Keine Rundungen */
    background: transparent;
    padding: 0.75rem;
    box-shadow: none;
    transition: background-color 0.3s ease-in-out;
}

/* Fokus hebt nur den Hintergrund hervor */
.kg-contact-form .contact-input:focus,
.kg-contact-form .contact-select:focus {
    outline: none;
    box-shadow: none;
    border-bottom: 1px solid #004aad;
    transition: .3s;
}

/* Platzhalter-Animation */
.kg-contact-form .contact-input::placeholder {
    transition: opacity 0.3s ease-in-out;
    font-size: 1rem;
    color: rgba(0, 0, 0, 0.7);
    padding: 0;
    margin: 0;
}

.kg-contact-form .contact-input:focus::placeholder {
    opacity: .45; /* Platzhalter verschwindet beim Fokus */
}

/* Auswahlfelder verwenden denselben Akzent wie die Texteingaben. */
.kg-contact-form .contact-select {
    border: none;
    border-bottom: 1px solid rgba(0,0,0,.3);
    border-radius: 0;
    background-color: transparent;
    padding: 0.75rem;
    padding-right: 2rem;
    box-shadow: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    font-size: 1rem;
    color: #004aad;
    background-image: url("data:image/svg+xml;charset=UTF8,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23004aad' viewBox='0 0 20 20'%3E%3Cpath d='M5.25 7l4.75 4.75L14.75 7z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
}

/* Fokus-Stil */
.kg-contact-form .contact-select:focus {
    outline: none;
    box-shadow: none;
    border-bottom: 1px solid #004aad;
    background-color: transparent;
}

/* Option-Felder im Dropdown */
.kg-contact-form .contact-select option {
    color: #004aad;
    background-color: #e6f0fb; /* sanftes hellblau passend zu #004aad */
    border-radius: 0 !important; /* keine Rundung */
    padding: 0.5rem;
}

/* Deaktivierte Option (z. B. Platzhalter) */
.kg-contact-form .contact-select option:disabled {
    color: rgba(0, 74, 173, 0.5);
    background-color: #f2f6fc;
}

.kg-contact-form {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    column-gap: 2rem;
    scroll-margin-top: 7rem;
    --contact-accent: #004aad;
    width: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-right: 0;
}

/* Felder bleiben immer ohne Flaechenfarbe, gearbeitet wird nur mit
   der Unterkante. Hover und Fokus zeigen dieselbe Akzentfarbe. */
.kg-contact-form .contact-input:hover,
.kg-contact-form .contact-select:hover,
.kg-contact-form .contact-input:focus,
.kg-contact-form .contact-select:focus {
    border-bottom-color: var(--contact-accent);
    background-color: transparent;
}

/* Gruener Haken rechts, sobald ein Feld gueltig ausgefuellt ist.
   Das Zeichen liegt schon im Grundzustand vor und waechst nur von
   Groesse 0 auf volle Groesse: background-image laesst sich nicht
   animieren, background-size dagegen schon. */
.kg-contact-form .contact-input {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%2322c55e' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round' d='M3 8.6l3.4 3.4L13 5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.55rem center;
    background-size: 0 0;
    padding-right: 2rem;
    transition: border-color 0.25s ease-in-out,
                background-size 0.3s cubic-bezier(0.2, 0.9, 0.3, 1.5);
}

.kg-contact-form textarea.contact-input {
    background-position: right 0.55rem top 0.9rem;
}

.kg-contact-form .contact-input.kg-valid {
    background-size: 1.05em 1.05em;
}

.kg-contact-form .contact-select.kg-valid {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%2322c55e' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round' d='M3 8.6l3.4 3.4L13 5'/%3E%3C/svg%3E"), url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%23004aad' viewBox='0 0 20 20'%3E%3Cpath d='M5.25 7l4.75 4.75L14.75 7z'/%3E%3C/svg%3E");
    background-position: right 2rem center, right 0.75rem center;
    background-size: 1.05em 1.05em, 1rem;
    padding-right: 3.5rem;
}

/* Fehlerhaft: dasselbe Erscheinen, nur mit rotem Kreuz. */
.kg-contact-form .contact-input.is-invalid {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cg fill='none' stroke='%23dc3545' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M4.5 4.5l7 7M11.5 4.5l-7 7'/%3E%3C/g%3E%3C/svg%3E");
    background-size: 1.05em 1.05em;
}

/* Die Dateiauswahl braucht keinen Haken, dort steht der Button. */
.kg-contact-form input[type="file"].contact-input {
    background-image: none;
    padding-right: 0.75rem;
}

/* Ausgefuellt und gueltig: gruen wie das Icon am Sicherheitssiegel. */
.kg-contact-form .contact-input.kg-valid,
.kg-contact-form .contact-select.kg-valid {
    border-bottom-color: var(--kg-field-valid);
    background-color: transparent;
}

.kg-contact-form .contact-input.is-invalid,
.kg-contact-form .contact-select.is-invalid {
    border-bottom-color: var(--kg-field-invalid);
    background-color: transparent;
    box-shadow: none;
}

/* Bei Hover und Fokus gilt wieder die Akzentfarbe der Seite. */
.kg-contact-form .contact-input:is(.kg-valid, .is-invalid):is(:hover, :focus),
.kg-contact-form .contact-select:is(.kg-valid, .is-invalid):is(:hover, :focus) {
    border-bottom-color: var(--contact-accent);
}

.kg-contact-form .contact-feedback {
    display: none;
    margin-top: 0.55rem;
    color: var(--kg-field-invalid);
    font-size: 0.82rem;
    line-height: 1.35;
}

.kg-contact-form .contact-feedback.is-visible {
    display: block;
}

.kg-contact-form .contact-field {
    min-width: 0;
    padding-top: 1rem;
}

.kg-contact-form > [class*="col-"] {
    width: 100%;
    padding-inline: 0;
}

.kg-contact-form .contact-label {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.85rem;
    font-weight: 500;
    line-height: 1.4;
    color: #273744;
}

.kg-contact-form :is(.contact-upload-hint, .contact-required-hint) {
    margin: 0.45rem 0 0;
    color: #59636c;
    font-size: 0.8rem;
}

.kg-contact-form .contact-submit-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.kg-contact-form .contact-submit-actions .btn {
    padding: 0.6rem 1.2rem;
    text-align: center;
}

.kg-contact-form .contact-status {
    margin: 1rem 0 0;
    padding: 0.8rem;
    color: #b42332;
    background: rgba(180, 35, 50, 0.06);
    border-radius: 7px;
    font-size: 0.9rem;
}

.kg-contact-form .contact-status[data-status="success"] {
    color: #146c43;
    background: rgba(25, 135, 84, 0.1);
}

@media (min-width: 768px) {
    .kg-contact-form { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .kg-contact-form > .col-md-6 { grid-column: span 2; }
    .kg-contact-form > .col-md-3 { grid-column: span 1; }
    .kg-contact-form > .col-12 { grid-column: 1 / -1; }
}