:root {
    --accent-color: #de9406;
    --accent-color-dark: #c08000;
    --background-color: #fffbea;
    --container-bg: #ffffff;
    --text-color: #42380a;
    --subtitle-color: #444;
    --input-border: #e0c77c;
    --input-focus-shadow: rgba(222, 148, 6, 0.15);
    --result-label: #555;
    --result-border: #f5e6c2;
}

.container-epf-calculator {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.container-epf-calculator .containerr {
    background-color: var(--container-bg);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(222, 148, 6, 0.07);
    max-width: 600px;
    width: 100%;
    text-align: center;
}

.container-epf-calculator h1 {
    color: var(--accent-color);
    font-size: 2rem;
    margin-bottom: 10px;
}

.container-epf-calculator .subtitle {
    color: var(--subtitle-color);
    margin-bottom: 25px;
    line-height: 1.5;
}

.container-epf-calculator .input-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
    text-align: left;
}

.container-epf-calculator .input-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.container-epf-calculator .input-field {
    flex: 1;
    min-width: 250px;
}

.container-epf-calculator label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

.container-epf-calculator input[type=number] {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--input-border);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
    box-sizing: border-box;
    background: #fff;
    color: var(--text-color);
}

.container-epf-calculator input[type=number]:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--input-focus-shadow);
}

.container-epf-calculator button {
    width: 100%;
    padding: 15px;
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
    margin-top: 10px;
}

.container-epf-calculator button:hover {
    background-color: var(--accent-color-dark);
}

.container-epf-calculator button:active {
    transform: scale(0.99);
}

.container-epf-calculator .results {
    margin-top: 30px;
    padding-top: 25px;
    border-top: 2px dashed var(--result-border);
    text-align: left;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease-in-out, transform 0.5s ease-in-out;
    background: transparent;
}

.container-epf-calculator .results.show {
    opacity: 1;
    transform: translateY(0);
}

.container-epf-calculator .result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--result-border);
}

.container-epf-calculator .result-item:last-child {
    border-bottom: none;
}

.container-epf-calculator .result-label {
    font-weight: 500;
    color: var(--result-label);
}

.container-epf-calculator .result-value {
    font-weight: 700;
    color: var(--text-color);
    font-size: 1.2rem;
}

.container-epf-calculator .result-value.total {
    color: var(--accent-color);
    font-size: 1.5rem;
}

/* Mobile adjustments */
@media (max-width: 600px) {
    .container-epf-calculator .input-field {
        min-width: 100%;
    }
}