/* BrainSpin – Brain-Train aesthetic: white/light, rounded corners, soft shadows */

.brain-spin-content {
    background: var(--surface-color, #ffffff);
    color: var(--text-primary, #0F172A);
    font-family: sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color, rgba(0, 0, 0, 0.06));
}

body.dark-theme .brain-spin-content {
    background: var(--surface-color, #161B22);
    color: var(--text-primary, #F8FAFC);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.brain-spin-content h3 {
    margin: 16px 0 20px 0;
    font-size: 1.15rem;
    color: var(--accent, #ffae00);
}

.brain-spin-achievement-hint {
    font-size: 0.9rem;
    color: var(--text-secondary, #64748B);
    margin: -8px 0 16px 0;
}

.brain-spin-play-btn {
    margin-top: 20px;
    padding: 14px 32px;
    font-size: 1.1rem;
    font-weight: 700;
    color: #0F172A;
    background: var(--accent, #ffae00);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(255, 174, 0, 0.35);
    transition: all 0.2s ease;
}

.brain-spin-play-btn:hover {
    transform: scale(1.03);
    box-shadow: 0 6px 20px rgba(255, 174, 0, 0.45);
}

/* Progress bar */
.brain-spin-progress-wrap {
    width: 100%;
    max-width: 520px;
    margin-bottom: 20px;
}

.brain-spin-progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary, #64748B);
    margin-bottom: 8px;
}

.brain-spin-progress-bar {
    height: 10px;
    background: var(--button-bg, #E2E8F0);
    border-radius: 10px;
    overflow: hidden;
}

body.dark-theme .brain-spin-progress-bar {
    background: #282828;
}

.brain-spin-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent, #ffae00), #f59e0b);
    border-radius: 10px;
    transition: width 0.4s ease;
}

/* Level / Achievement grid */
.brain-spin-level-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(56px, 1fr));
    gap: 10px;
    max-width: 520px;
    max-height: 55vh;
    overflow-y: auto;
}

.brain-spin-level-btn {
    width: 52px;
    height: 52px;
    padding: 0;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 12px;
    border: 2px solid var(--border-color, #E2E8F0);
    background: var(--button-bg, #F1F5F9);
    color: var(--text-primary, #0F172A);
    cursor: pointer;
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
}

body.dark-theme .brain-spin-level-btn {
    border-color: #475569;
    background: #282828;
    color: #F8FAFC;
}

.brain-spin-level-btn:hover {
    border-color: var(--accent, #ffae00);
}

.brain-spin-level-btn.completed {
    border-color: #22c55e;
    background: rgba(34, 197, 94, 0.15);
    color: #15803d;
}

body.dark-theme .brain-spin-level-btn.completed {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
}

.brain-spin-level-btn.completed:hover {
    box-shadow: 0 0 10px rgba(34, 197, 94, 0.3);
}

/* Stats bar */
.brain-spin-stats {
    margin-bottom: 20px;
    font-size: 1rem;
    color: var(--accent, #ffae00);
    font-weight: 600;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
}

.brain-spin-stats button {
    padding: 8px 18px;
    font-size: 0.95rem;
    border-radius: 10px;
    border: 2px solid var(--border-color, #E2E8F0);
    background: var(--button-bg, #F1F5F9);
    color: var(--accent, #ffae00);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

body.dark-theme .brain-spin-stats button {
    border-color: #475569;
    background: #282828;
}

.brain-spin-stats button:hover {
    border-color: var(--accent, #ffae00);
    box-shadow: 0 0 10px rgba(255, 174, 0, 0.3);
}

/* Wheel container */
.brain-spin-wheel-wrap {
    width: 100%;
    max-width: 380px;
    margin: 0 auto 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.brain-spin-wheel-container {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    max-width: 320px;
    margin: 0 auto 24px;
}

/* Pointer (top center) */
.brain-spin-wheel-pointer {
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 16px solid transparent;
    border-right: 16px solid transparent;
    border-top: 24px solid var(--accent, #ffae00);
    z-index: 10;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

/* Wheel – image only */
.brain-spin-wheel {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), inset 0 0 0 4px rgba(255,255,255,0.5);
}

.brain-spin-wheel-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}


/* Spin button */
.brain-spin-spin-btn {
    padding: 14px 48px;
    font-size: 1.15rem;
    font-weight: 700;
    color: #0F172A;
    background: var(--accent, #ffae00);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(255, 174, 0, 0.4);
    transition: all 0.2s ease;
}

.brain-spin-spin-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 24px rgba(255, 174, 0, 0.5);
}

.brain-spin-spin-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Quiz modal */
.brain-spin-quiz-modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.brain-spin-quiz-modal.brain-spin-quiz-visible {
    display: flex;
}

.brain-spin-quiz-box {
    background: var(--surface-color, #ffffff);
    color: var(--text-primary, #0F172A);
    border-radius: 16px;
    padding: 28px;
    max-width: 480px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color, rgba(0,0,0,0.06));
}

body.dark-theme .brain-spin-quiz-box {
    background: var(--surface-color, #161B22);
    border-color: rgba(255,255,255,0.1);
}

.brain-spin-quiz-category {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent, #ffae00);
    margin-bottom: 12px;
}

.brain-spin-quiz-question {
    font-size: 1.1rem;
    line-height: 1.5;
    margin: 0 0 20px 0;
}

.brain-spin-quiz-timer-wrap {
    height: 8px;
    background: var(--button-bg, #E2E8F0);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
}

body.dark-theme .brain-spin-quiz-timer-wrap {
    background: #282828;
}

.brain-spin-quiz-timer-bar {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, var(--accent, #ffae00), #f59e0b);
    border-radius: 8px;
    transition: width 0.4s linear;
}

.brain-spin-quiz-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.brain-spin-quiz-option {
    padding: 14px 18px;
    font-size: 1rem;
    text-align: left;
    border-radius: 12px;
    border: 2px solid var(--border-color, #E2E8F0);
    background: var(--button-bg, #F8FAFC);
    color: var(--text-primary, #0F172A);
    cursor: pointer;
    transition: all 0.2s ease;
}

body.dark-theme .brain-spin-quiz-option {
    border-color: #475569;
    background: #282828;
    color: #F8FAFC;
}

.brain-spin-quiz-option:hover:not(.brain-spin-option-disabled) {
    border-color: var(--accent, #ffae00);
}

.brain-spin-quiz-option.brain-spin-option-correct {
    background: rgba(34, 197, 94, 0.2);
    border-color: #22c55e;
    color: #15803d;
}

body.dark-theme .brain-spin-quiz-option.brain-spin-option-correct {
    background: rgba(34, 197, 94, 0.25);
    color: #4ade80;
}

.brain-spin-quiz-option.brain-spin-option-wrong {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
    color: #b91c1c;
}

body.dark-theme .brain-spin-quiz-option.brain-spin-option-wrong {
    background: rgba(239, 68, 68, 0.25);
    color: #fca5a5;
}

.brain-spin-quiz-option.brain-spin-option-disabled {
    cursor: default;
    opacity: 0.8;
}

/* Success animation */
@keyframes brain-spin-success-pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.brain-spin-quiz-option.brain-spin-option-correct {
    animation: brain-spin-success-pop 0.4s ease;
}

/* Responsive */
@media (max-width: 640px) {
    .brain-spin-level-grid {
        grid-template-columns: repeat(8, 1fr);
        gap: 8px;
    }

    .brain-spin-level-btn {
        width: 42px;
        height: 42px;
        font-size: 0.75rem;
    }

    .brain-spin-quiz-box {
        padding: 20px;
    }

    .brain-spin-quiz-question {
        font-size: 1rem;
    }
}