body {
    background: var(--paper) !important;
    background-image:
      radial-gradient(circle at 8% 12%, rgba(240,180,41,0.06) 0, transparent 45%),
      radial-gradient(circle at 92% 85%, rgba(31,157,119,0.06) 0, transparent 45%) !important;
    color: var(--ink);
    font-family: 'Kantumruy Pro', sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: 0;
    margin: 0;
}

.game-wrap {
    max-width: 760px;
    width: 100%;
    margin: 0 auto;
    padding: 32px 20px 60px;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--card-shadow);
    padding: 35px 25px;
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 600px;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: repeating-linear-gradient(
        -45deg,
        var(--red) 0 8px,
        var(--gold) 8px 16px,
        var(--green) 16px 24px
    );
}

.screen {
    display: none;
    width: 100%;
}

.screen.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.option-btn {
    background: var(--gold) !important;
    color: var(--ink) !important;
    font-family: 'Outfit', 'Kantumruy Pro', sans-serif;
    font-size: 1.45rem;
    font-weight: 700;
    padding: 14px 20px;
    border-radius: 999px; /* Pill shapes */
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 0 rgba(0, 0, 0, 0.12);
    transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.2s;
}

.option-btn:hover {
    background: #dba513 !important;
}

.option-btn:active {
    transform: translateY(3px);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12);
}

.option-btn.correct {
    background: var(--green) !important;
    border-color: var(--green) !important;
    color: #fff !important;
    box-shadow: none !important;
}

.option-btn.wrong {
    background: var(--red) !important;
    border-color: var(--red) !important;
    color: #fff !important;
    box-shadow: none !important;
}

.katex {
    font-size: 1.1em !important;
}

.katex-display {
    margin: 0 !important;
}