/* Denklik Arenası Game Styles */
:root {
    --da-indigo-600: #4f46e5;
    --da-slate-50: #f8fafc;
}

.da-container {
    max-width: 800px;
    margin: 40px auto;
    background: white;
    padding: 2rem;
    border-radius: 2rem;
    box-shadow: var(--shadow-xl);
    min-height: 500px;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Config View */
.config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.config-box {
    background: #f8fafc;
    padding: 1rem;
    border-radius: 1.5rem;
    border: 1px solid #e2e8f0;
}

.config-label {
    font-size: 9px;
    font-weight: 900;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 0.75rem;
}

.opt-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
}

.config-btn {
    padding: 0.5rem;
    border-radius: 0.5rem;
    font-weight: 900;
    font-size: 10px;
    border: 2px solid #e2e8f0;
    background: white;
    color: #94a3b8;
    cursor: pointer;
    transition: all 0.2s;
}

.config-btn.active {
    background: #4f46e5;
    color: white;
    border-color: #4f46e5;
}

/* Game Grid */
.game-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    max-width: 500px;
    margin: 0 auto;
    width: 100%;
    opacity: 1;
    transition: opacity 0.3s ease-in-out;
}

.card-btn {
    aspect-ratio: 1;
    background: white;
    border: 2px solid #f1f5f9;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.card-btn:hover {
    border-color: #e2e8f0;
    transform: scale(1.02);
}

.card-btn.selected {
    background: #eef2ff;
    border-color: #6366f1;
    color: #4338ca;
    transform: scale(1.05);
    box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.1);
}

.card-btn.matched {
    opacity: 0;
    pointer-events: none;
    transform: scale(0);
}

.card-btn.error {
    background: #fff1f2;
    border-color: #f43f5e;
    color: #e11d48;
    animation: shake 0.4s ease-in-out;
}

/* Stats Bar */
.stats-bar {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.stat-box {
    padding: 0.5rem;
    border-radius: 0.75rem;
    text-align: center;
    background: #f1f5f9;
}

.stat-label {
    font-size: 8px;
    font-weight: 900;
    text-transform: uppercase;
    color: #64748b;
}

.stat-val {
    font-size: 1.25rem;
    font-weight: 900;
    color: #1e293b;
}

/* Feedback Toast */
.feedback-toast {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1rem;
    border-radius: 0.75rem;
    font-size: 10px;
    font-weight: 900;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-md);
    opacity: 0;
    transition: opacity 0.2s;
}

.feedback-toast.show {
    opacity: 1;
}

.feedback-success {
    background: #ecfdf5;
    color: #059669;
    border: 1px solid #d1fae5;
}

.feedback-bonus {
    background: #f97316;
    color: white;
}

.feedback-error {
    background: #fff1f2;
    color: #e11d48;
    border: 1px solid #ffe4e6;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-4px);
    }

    75% {
        transform: translateX(4px);
    }
}