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

:root {
    --dark: #061E29;
    --blue: #1D546D;
    --cyan: #5F9598;
    --white: #F3F4F4;
    --cell-hidden: #89C2E4;
    --cell-hover: #5A99B8;
}

body {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    align-items: center;
    background-color: var(--dark);
    color: var(--white);
    font-family: system-ui, sans-serif;
    gap: 10px;
}

#app {
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    background-color: var(--blue);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.menu {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background-color: var(--dark);
}

.menu select {
    padding: 5px 10px;
    background-color: var(--cyan);
    color: var(--white);
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
}

.stats {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.2rem;
    font-weight: bold;
}

.main {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
}

.grid-container {
    width: 100%;
    height: 100%;
    padding: 10px;
}

.grid {
    width: 100%;
    height: 100%;
    display: grid;
    grid-template-columns: repeat(var(--side), 1fr);
    grid-template-rows: repeat(var(--side), 1fr);
    gap: 2px;
    background-color: var(--dark);
    border: 2px solid var(--dark);
}

.cell {
    background-color: var(--cell-hidden);
    display: grid;
    place-content: center;
    font-size: calc(250px / var(--side));
    font-weight: bold;
    user-select: none;
}

.cell:hover {
    cursor: pointer;
    background-color: var(--cell-hover);
}

.cell.revealed {
    background-color: var(--blue);
    cursor: default;
}

.overlay {
    position: absolute;
    inset: 0; 
    background-color: rgba(6, 30, 41, 0.7); 
    backdrop-filter: blur(4px); 
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
}

[game-status="playing"] .overlay {
    display: none;
}

.popup {
    background-color: var(--blue);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.message {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.restart-button {
    padding: 10px 25px;
    background-color: var(--cyan);
    color: var(--white);
    font-weight: 800;
    font-size: 1.1rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: transform 0.1s ease-in-out;
}

.restart-button:hover {
    transform: scale(1.05);
}


.like-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-top: 20px;
    padding: 12px 25px;
    background-color: var(--blue);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    width: fit-content;
    margin-inline: auto;
}

.like-text {
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}