/* ── Çerçeve Hesaplayıcı ── */
.chk-wrapper {
    max-width: 480px;
    margin: 24px auto;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: 28px 32px;
    box-shadow: 0 2px 12px rgba(0,0,0,.07);
    font-family: inherit;
}

.chk-baslik {
    margin: 0 0 20px;
    font-size: 1.25em;
    color: #333;
}

.chk-alan {
    margin-bottom: 16px;
}

.chk-alan label {
    display: block;
    font-weight: 600;
    margin-bottom: 6px;
    color: #444;
    font-size: .92em;
}

.chk-sinir {
    font-weight: 400;
    color: #888;
    font-size: .85em;
    margin-left: 4px;
}

.chk-select,
.chk-input {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1em;
    box-sizing: border-box;
    transition: border-color .2s;
    background: #fafafa;
}

.chk-select:focus,
.chk-input:focus {
    outline: none;
    border-color: #96588a;
    background: #fff;
}

.chk-olcular {
    display: flex;
    gap: 14px;
}

.chk-olcular .chk-alan {
    flex: 1;
}

/* Sonuç kutusu */
.chk-sonuc {
    background: #f5f0f7;
    border: 1px solid #c9a8d4;
    border-radius: 8px;
    padding: 14px 18px;
    margin: 18px 0;
}

.chk-sonuc-detay {
    display: flex;
    justify-content: space-between;
    font-size: .9em;
    color: #555;
    margin-bottom: 8px;
}

.chk-toplam {
    font-size: 1.35em;
    font-weight: 700;
    color: #5a2d82;
}

/* Hata */
.chk-hata {
    background: #fff3f3;
    border: 1px solid #f5a5a5;
    color: #c0392b;
    border-radius: 6px;
    padding: 10px 14px;
    margin-bottom: 14px;
    font-size: .9em;
}

/* Buton */
.chk-btn {
    display: block;
    width: 100%;
    padding: 13px;
    background: #96588a;
    color: #fff;
    border: none;
    border-radius: 7px;
    font-size: 1.05em;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s, opacity .2s;
}

.chk-btn:hover:not(:disabled) {
    background: #7a4070;
}

.chk-btn:disabled {
    opacity: .45;
    cursor: not-allowed;
}

/* Başarı */
.chk-basari {
    margin-top: 14px;
    background: #f0fdf4;
    border: 1px solid #86efac;
    color: #166534;
    border-radius: 6px;
    padding: 11px 14px;
    font-size: .95em;
    text-align: center;
}

.chk-basari a {
    color: #15803d;
    font-weight: 600;
    text-decoration: underline;
}

@media (max-width: 480px) {
    .chk-wrapper {
        padding: 20px 16px;
    }
    .chk-olcular {
        flex-direction: column;
        gap: 0;
    }
    .chk-sonuc-detay {
        flex-direction: column;
        gap: 4px;
    }
}