* {
    box-sizing: border-box;
    font-family: 'Space Mono', monospace;
    word-spacing: -0.3em;
}

html {
    background: #000;
    color: #fff;
    font-size: 30px;
}

body {
    display: relative;
    margin: 0;
}

#app-wrapper {
    display: grid;
    grid-template-columns: 50vw 50vw;
    grid-template-rows: 45vh 45vh;
}

.timer {
    font-size: 12vw;
    line-height: 12vh;
    padding-top: 18vh;
    text-align: center;
}

#t1 {
    border-right: 1px solid #666;
}

#t2 {
    border-left: 1px solid #666;
    color: #666;
}

button {
    background: #6f00ff;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 30px;
}

button:active {
    background: #4600a1;
}

#switch-btn {
    font-size: 8vw;
    grid-column-start: 1;
    grid-column-end: 3;
    letter-spacing: 1vw;
}

#switch-btn:focus-visible {
    border: none;
    outline: none;
    text-decoration: underline;
}

#small-btn-wrapper {
    display: grid;
    grid-template-columns: 33.33333vw 33.33333vw 33.33333vw;
    grid-template-rows: 10vh;
}

.small-btn {
    background: transparent;
    border: 1px solid #666;
    border-bottom-width: 2px;
    border-top-width: 2px;
    font-size: 18px;
    margin: 0;
}

#settings-btn {
    top: 6vh;
}

#reset-btn {
    top: 21vh;
}

#pause-btn {
    top: 36vh;
}

/* SETTINGS */

h1 {
    margin-top: 0;
    margin-bottom: 0;
}

p {
    margin: 10px 0 20;
}

#settings-wrapper {
    background: #000;
    padding: 3vw 5vw;
    position: absolute;
    left: 0vw;
    width: 100vw;
    height: 100vh;
    transition: left 0.4s ease;
}

input[type="number"] {
    font-size: 30px;
    margin-bottom: 20px;
    padding: 5px 10px;
    width: 120px;
}

hr {
    margin: 30px 0 40px;
}

.right-margin {
    margin-right: 20px;
}

.primary {
    border: 2px solid #6f00ff;
    margin-bottom: 20px;
    margin-right: 12px;
    padding: 5px 20px;
}

.secondary {
    background: transparent;
    border: 2px solid #fff;
    margin-bottom: 20px;
    padding: 5px 20px;
}