body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #2c3338;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
}

.container {
    width: 90%;
    max-width: 800px;
    padding: 40px;
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

h1 {
    color: white;
    margin-bottom: 30px;
    font-size: 2.5em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.info-box {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.info-header {
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.05);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
    transition: background-color 0.3s ease;
}

.info-header:hover {
    background: rgba(255, 255, 255, 0.1);
}

.info-content {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease-in-out;
    text-align: left;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

.info-box.active .info-content {
    max-height: 300px;
    padding: 20px;
    margin-bottom: 10px;
}

.input-container {
    margin-bottom: 30px;
    position: relative;
    padding: 0 20px;
    display: flex;
    gap: 10px;
}

input {
    width: calc(100% - 44px);
    padding: 20px;
    font-size: 24px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    outline: none;
    transition: all 0.3s;
    color: white;
    text-align: center;
    box-sizing: border-box;
}

input:focus {
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

select {
    padding: 15px;
    font-size: 18px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    outline: none;
    color: white;
    cursor: pointer;
    transition: all 0.3s;
}

select:focus {
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
}

select option {
    background: #2c3338;
    color: white;
}

.result {
    font-size: 28px;
    color: white;
    padding: 25px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.arrow {
    transition: transform 0.3s ease;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.8em;
}

.info-box.active .arrow {
    transform: rotate(180deg);
}

/* Remove spinner from number input */
input[type=number]::-webkit-inner-spin-button, 
input[type=number]::-webkit-outer-spin-button { 
    -webkit-appearance: none; 
    margin: 0; 
}

input[type=number] {
    -webkit-appearance: textfield;
    -moz-appearance: textfield;
    appearance: textfield;
}