/* ===========================================
   Daylight Saving Time (DST) Tool - Tool Specific Styles
   =========================================== */

/* Tool Layout */
.dst-box {
    max-width: 650px;
    margin: 0 auto;
}

/* Controls and Inputs */
.dst-controls {
    background: #f0f9ff; /* Light Cyan/Blue BG */
    padding: 30px;
    border-radius: 12px;
    border: 1px solid #bae6fd;
    margin-bottom: 30px;
    display: grid;
    grid-template-columns: 1fr 1fr; /* Two columns for inputs */
    gap: 20px;
}

.dst-input-group {
    display: flex;
    flex-direction: column;
}

.dst-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: #0369a1; /* Dark Blue Label */
    margin-bottom: 6px;
}

.dst-input {
    padding: 10px;
    border: 1px solid #38bdf8; /* Medium Blue Border */
    border-radius: 6px;
    font-size: 1rem;
    color: #1f2937;
    width: 100%;
}

/* Specific styling for the Calculate button outside the grid */
.dst-btn-calc-container {
    grid-column: 1 / 3; /* Spans both columns */
    padding-top: 10px;
}

.dst-btn-calc {
    width: 100%;
    padding: 12px 20px;
    font-size: 1.2rem;
    font-weight: 700;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    background: #0ea5e9; /* Primary Sky Blue Button */
    color: white;
    transition: background 0.2s;
}
.dst-btn-calc:hover {
    background: #0284c7;
}

/* --- Results Summary --- */

.dst-results-section {
    margin-top: 30px;
    text-align: center;
}

.dst-summary {
    padding: 25px;
    background: #f0f9ff; 
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.dst-result-main {
    font-size: 1.2rem;
    color: #0369a1;
    font-weight: 600;
    margin-bottom: 15px;
}

.dst-result-value {
    font-size: 3rem;
    font-weight: 800;
    color: #0ea5e9;
    line-height: 1.1;
    margin-bottom: 15px;
}

.dst-description {
    font-size: 1.1rem;
    color: #0284c7;
    font-style: italic;
    border-top: 1px dashed #bae6fd;
    padding-top: 15px;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    .dst-controls {
        grid-template-columns: 1fr; 
        padding: 20px;
    }
    .dst-btn-calc-container {
        grid-column: 1 / 2;
    }
    .dst-result-value {
        font-size: 2.5rem;
    }
}