*{
margin:0;
padding:0;
box-sizing: border-box;
}
html,body{
width: 100%;
height: 100%;
}
:root {
    /* Colors */
    --bg-color: #222;
    --board-bg: #333;
    --snake-color: #51cf56f5;
    --food-color: #fc1717d8;
    --text-color: #fffafaf8;

    /* Sizes */
    --cell-size: 40px;
    --gap-size: 1px;
    --space-xs: 8px;
    --space-s: 16px;
    --space-md: 24px;
    --space-l: 32px;
    --space-xl: 40px;

    /* Border */
    --border-prim-color: #616060;
    --border-radius-xs: 8px;
    --border-radius-s: 16px;
    --border-radius-md: 24px;
    --border-radius-l: 32px;
    --border-radius-xl: 40px;

    /* Font */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

main{
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    width: 100vw;
    height: 100vh;
}
h1 {
    margin-bottom: 10px;
    color: var(--snake-color);
    -webkit-text-stroke: 1px var(--text-color);
}
section{
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    height: 100%;
}

section #score-board {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
}
.info{
    padding: var(--space-xs) var(--space-s);
    border: 1px solid var(--border-prim-color);
    border-radius: var(--border-radius-xs);
}

#board {
    width: 80vw;
    height: 80vh;
    border: 2px solid var(--border-prim-color);
    flex-grow: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(40px, 1fr));
    grid-template-rows: repeat(auto-fill, minmax(40px, 1fr));
}

.block{
    width: var(--cell-size);
    height: var(--cell-size);
    border-radius: 50%;
}

.modal {
    height: 100vh;
    width: 100vw;
    position: fixed;
    top: 0;
    background-color: #35353587;
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal .start-game, .modal .game-over {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.modal .game-over{
      display: none; 
}
.btns{
    padding: var(--space-xs) var(--space-xl);
    border: none;
    border-radius: var(--border-radius-s);
    background-color: var(--snake-color);
    color: var(--text-color);
    font-size: 1.1rem;
    cursor: pointer;
    transition: background-color 0.3s ease;
}
.snake {
    background-color: var(--snake-color);
}

.food {
    background-color: var(--food-color);
}