body {
    font-family: Inter, system-ui, Arial, sans-serif;
    margin: 0;
    background: #f2f6f9;
    color: #111;
}

.topbar {
    width: 100%;
    padding: 12px 0;
    background: #061d1d;
    color: white;
    text-align: center;
    font-size: 17px;
    font-weight: bold;
}

.auth-card {
    max-width: 360px;
    margin: 6vh auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 6px 18px rgba(2,6,23,0.08);
}

.auth-card h1 {
    margin: 0 0 12px;
}

.auth-card label {
    display: block;
    margin: 8px 0;
}

.auth-card input {
    width: 95%;
    padding: 8px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
}

.auth-card button {
    width: 100%;
    padding: 10px;
    margin-top: 12px;
    border: 0;
    border-radius: 8px;
    background: #0ea5a4;
    color: #fff;
    font-weight: 600;
}

.error {
    background: #fee2e2;
    color: #991b1b;
    padding: 8px;
    border-radius: 6px;
    margin-bottom: 8px;
}

.success {
    background: #ecfccb;
    color: #365314;
    padding: 8px;
    border-radius: 6px;
    margin-bottom: 8px;
}

/* GAME AREA */
.game-wrap {
    display: flex;
    justify-content: center;
    padding: 24px;
}

.board-wrap {
    position: relative !important;
    z-index: 1 !important;
}

.controls {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

button {
    padding: 10px 16px;
    font-size: 15px;
    cursor: pointer;
    border-radius: 6px;
    border: none;
    background: #334155;
    color: white;
}

button:hover {
    background: #1e293b;
}

canvas#board {
    position: relative !important;
    z-index: 999999 !important;
    background: #000 !important;
    border: 2px solid red !important;

    width: 640px !important;
    height: 640px !important;

    display: block !important;
    flex-shrink: 0 !important;
}