body {
    font-family: 'Segoe UI', sans-serif;
    background-color: #E2D4C4;
    margin: 0;
    display: flex;
    justify-content: center;
    padding: 10px;
    box-sizing: border-box;
}

.container {
    background: #E2D4C4;
    width: 100%;
    max-width: 1100px;
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    box-sizing: border-box;
    overflow: hidden;
}

.screen.hidden {
    display: none;
}

.logo-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    margin-bottom: 10px;
}

.bingo-logo {
    max-width: 100%;
    height: auto;
    max-height: 100px;
    object-fit: contain;
    display: block;
}

#nickname-input,
#password-input {
    border: none;
    outline: none;
    border-radius: 15px;
    padding: 1em;
    background-color: #ccc;
    box-shadow: inset 2px 5px 10px rgba(0, 0, 0, 0.3);
    transition: 300ms ease-in-out;
    width: 80%;
    max-width: 300px;
    margin-bottom: 15px;
    font-size: 16px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

#nickname-input:focus,
#password-input:focus {
    background-color: white;
    transform: scale(1.05);
    box-shadow: 13px 13px 100px #969696, -13px -13px 100px #ffffff;
}

.editor-container {
    border: 2px solid #ddd;
    border-radius: 8px;
    height: 200px;
    margin-top: 10px;
    background: #fff;
}

#list-input {
    width: 100%;
    height: 100%;
    border: none;
    outline: none;
    padding: 15px;
    box-sizing: border-box;
    font-size: 16px;
    resize: none;
    font-family: inherit;
}

.main-btn {
    background: #27ae60;
    color: white;
    border: none;
    padding: 10px 16px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    width: 100%;
    max-width: 250px;
    margin: 10px auto;
    display: block;
}

.game-layout {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    width: 100%;
}

.board-area {
    flex: 1 1 500px;
    max-width: 100%;
}

.online-area {
    flex: 1 1 300px;
    background: #f8f9fa;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #eee;
    max-height: 500px;
    overflow-y: auto;
    width: 100%;
    box-sizing: border-box;
}

.mini-player-card {
    background: white;
    border: 1px solid #ddd;
    padding: 10px;
    border-radius: 10px;
    margin: 0 auto 12px auto;
    width: 90%;
    max-width: 250px;
    box-sizing: border-box;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.mini-player-card.offline {
    opacity: 0.5;
    filter: grayscale(0.8);
}

.mini-name {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    font-size: 14px;
    text-align: center;
}

.mini-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2px;
    width: 100px;
    margin: 0 auto;
}

.mini-cell {
    width: 18px;
    height: 18px;
    border: 1px solid #ccc;
    background: #fff;
}

.board {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    margin-top: 10px;
    width: 100%;
    box-sizing: border-box;
}

.cell {
    aspect-ratio: 1/1;
    border: 1px solid #333;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
    font-weight: bold;
    cursor: pointer;
    background: #fff;
    word-break: break-all;
    padding: 2px;
    box-sizing: border-box;
}

.reset-btn {
    background: #3498db;
    margin-top: 20px;
    width: 100%;
    color: white;
    border: none;
    padding: 12px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
}

.overlay.hidden {
    display: none;
}

.win-content {
    background: white;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    width: 90%;
    max-width: 400px;
}

@media (max-width: 768px) {
    .game-layout {
        flex-direction: column;
    }

    .online-area {
        max-height: 350px;
    }

    .cell {
        font-size: 8px;
    }

    .mini-player-card {
        width: 95%;
    }
}