/* =========================
   BUTTON BASIS
   ========================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 5px;

    font-weight: bold;
    cursor: pointer;
    text-decoration: none;
    color: #000;

    border-radius: 5px;
    border: 1px solid #000;

    background: linear-gradient(
        135deg,
        lightgreen,
        rgb(154, 192, 205),
        lightgreen,
        rgb(154, 192, 205),
        lightgreen
    );

    white-space: nowrap;
    box-sizing: border-box;
}

/* =========================
   BUTTON VARIANTEN
   ========================= */
.btn--header {
    min-width: 80px; 
    height: 30px;
    font-size: 14px;
}

.btn--nav {
    width: 150px;
    height: 30px;
    font-size: 16px;
}

.btn--sub {
    width: 120px;
    height: 25px;
    font-size: 13px;
}

.btn--form {
    width: 130px;
    height: 34px;
    font-size: 14px;
}

.btn--calendar {
    padding: 8px 14px;
    font-size: 14px;
    min-width: 90px;
    text-align: center;
}

.btn--calendar-action {
    min-width: 110px;
    padding: 8px 14px;
    font-size: 14px;
    text-align: center;
}

.btn--termin {
    min-width: 170px;
    min-height: 42px;
    padding: 10px 18px;
    border-radius: 8px;
    font-size: 1rem;
}

.btn--table-action {
    min-width: 100px;
    padding: 7px 10px;
    border-radius: 8px;
    font-size: 0.9rem;
}

.btn--filter,
.btn--action-link {
    min-width: 140px;
    padding: 9px 14px;
    border-radius: 8px;
    font-size: 0.96rem;
}

.btn--filter {
    min-width: 160px;
    padding: 9px 16px;
}

.btn--danger {
    background: linear-gradient(to bottom, #f0c7c7, #e89f9f);
    color: #5d1111;
    border-color: #7d3a3a;
}

/* =========================
   HOVER / FOCUS
   ========================= */
.btn:hover {
    background: linear-gradient(
        135deg,
        rgb(154, 192, 205),
        lightgreen,
        rgb(154, 192, 205)
    );
    transition: 0.2s ease-in-out;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.25);
}

.btn:focus-visible {
    outline: 3px solid rgb(0, 0, 139);
    outline-offset: 3px;
}