* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html {
    font-family: "Comic Sans MS", "Montserrat", sans-serif;
}

body {
    background-color: #fff0f5;
}

header {
    text-align: center;
    margin-top: 30px;
    font-size: 24px;
    color: #d46a92;
}

section {
    min-height: 90vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    width: 90%;
    max-width: 400px;
    background-color: #ffe0ec;
    border-radius: 20px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    overflow: hidden;
    padding: 10px;
}

.display {
    background-color: #fff7fb;
    height: 120px;
    width: 100%;
    text-align: right;
    font-size: 32px;
    padding: 20px;
    border-radius: 15px;
    position: relative;
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.05);
}

.display-history {
    opacity: 0.5;
    font-size: 18px;
    color: #b88ca4;
}

.display-input {
    font-size: 32px;
    color: #333;
}

.temp-result {
    position: absolute;
    left: 10px;
    bottom: 10px;
    font-size: 18px;
    opacity: 0.4;
    color: #999;
}

.all_button {
    color: whitesmoke;
    display: grid;
    grid-template: repeat(4, 1fr) / repeat(4, 1fr);
    margin-top: 10px;
    gap: 5px;
}

.button {
    background-color: #f8badb;
    border: none;
    border-radius: 15px;
    height: 70px;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 26px;
    color: white;
    cursor: pointer;
    transition: 0.2s ease;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.button:hover {
    background-color: #fba6cb;
}

.operation, .all-clear, .last-entity-clear, .equal {
    background: #f58ab5;
}

.btn-0 {
    grid-column: 1/3;
}