/* =====================================
   RAILWAY MITRA - DA CALCULATOR
   Isolated stylesheet
===================================== */

.da-calculator {
    width: min(100% - 28px, 520px);
    margin: 24px auto;
    padding-bottom: 35px;
    color: #eaf6ff;
    font-family: Arial, sans-serif;
}

.da-header {
    text-align: center;
    padding: 24px 16px;
    margin-bottom: 20px;
    border: 1px solid rgba(0, 220, 255, 0.25);
    border-radius: 20px;
    background: linear-gradient(145deg, #102747, #091426);
    box-shadow: 0 0 24px rgba(0, 195, 255, 0.12);
}

.da-back {
    display: inline-block;
    float: left;
    color: #6eeaff;
    text-decoration: none;
    font-size: 14px;
}

.da-brand {
    margin: 5px 0 18px;
    color: #65eaff;
    font-size: 12px;
    letter-spacing: 3px;
    font-weight: bold;
}

.da-header h1 {
    margin: 10px 0 6px;
    color: #ffffff;
    font-size: 25px;
}

.da-subtitle {
    margin: 0;
    color: #a8c7df;
    font-size: 14px;
}

.da-card,
.da-result {
    padding: 22px;
    margin-bottom: 18px;
    border: 1px solid rgba(0, 210, 255, 0.22);
    border-radius: 18px;
    background: linear-gradient(145deg, #11243d, #0a1628);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
}

.da-card h2,
.da-result h2 {
    margin: 0 0 20px;
    color: #72eaff;
    font-size: 19px;
}

.da-field {
    margin-bottom: 18px;
}

.da-field label {
    display: block;
    margin-bottom: 8px;
    color: #d9edff;
    font-size: 14px;
    font-weight: 600;
}

.da-field input {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 14px;
    border: 1px solid rgba(76, 205, 255, 0.4);
    border-radius: 11px;
    outline: none;
    background: #071326;
    color: #ffffff;
    font-size: 17px;
}

.da-field input:focus {
    border-color: #42e7ff;
    box-shadow: 0 0 12px rgba(0, 210, 255, 0.2);
}

.da-effective {
    margin: 8px 0 18px;
    color: #a9c9e5;
    font-size: 12px;
    line-height: 1.6;
}

.da-calculator button {
    display: block;
    width: 100%;
    padding: 14px;
    margin-top: 12px;
    border: 0;
    border-radius: 12px;
    background: linear-gradient(100deg, #00c9ef, #2679ff);
    color: #041326;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
}

.da-calculator button:active {
    transform: scale(0.98);
}

.da-calculator .da-reset {
    border: 1px solid rgba(255, 105, 170, 0.5);
    background: rgba(255, 70, 145, 0.12);
    color: #ff9bc8;
}

.da-result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(160, 210, 255, 0.12);
    font-size: 14px;
}

.da-result-item span {
    color: #b7d1e9;
}

.da-result-item strong {
    color: #ffffff;
    text-align: right;
    font-size: 16px;
}

.da-result-item.da-highlight strong {
    color: #5ceaff;
    font-size: 19px;
}

.da-result-item.da-total {
    margin-top: 8px;
    padding: 17px 12px;
    border: 1px solid rgba(0, 225, 255, 0.3);
    border-radius: 12px;
    background: rgba(0, 190, 255, 0.08);
}

.da-result-item.da-total strong {
    color: #ff8ed0;
    font-size: 20px;
}

.da-note {
    padding: 0 5px;
    color: #9bb6ce;
    font-size: 12px;
    line-height: 1.7;
}

@media (max-width: 380px) {
    .da-calculator {
        width: calc(100% - 20px);
    }

    .da-card,
    .da-result {
        padding: 17px;
    }

    .da-header h1 {
        font-size: 22px;
    }

    .da-result-item {
        font-size: 13px;
    }
  }