:root {
    --primary-color: #009DDC;
    --primary-hover: #0087BF;
    --hero-gradient-start: rgba(0, 157, 220, 0.34);
    --hero-gradient-end: rgba(0, 157, 220, 0.14);
    --summary-bg-start: rgba(0, 157, 220, 0.26);
    --summary-bg-end: rgba(0, 157, 220, 0.10);
    --mode-shadow: rgba(0, 157, 220, 0.30);
    --btn-shadow: rgba(0, 157, 220, 0.52);
    --section-bg-start: rgba(0, 157, 220, 0.14);
    --section-bg-end: rgba(0, 157, 220, 0.06);
    --primary-shadow: rgba(0, 157, 220, 0.40);
    --feature-shadow: rgba(0, 157, 220, 0.22);
    --focus-shadow: rgba(0, 157, 220, 0.34);
    --accordion-icon-filter: invert(60%) sepia(60%) saturate(1100%) hue-rotate(185deg) brightness(100%) contrast(100%);
}

* {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    font-feature-settings: "cv02", "cv03", "cv04", "cv11";
    font-variant-numeric: oldstyle-nums;
}

/* Clickable steps */
.step.clickable {
    cursor: pointer;
    transition: all 0.3s ease;
}

.step.clickable:hover {
    transform: scale(1.05);
}

.step.clickable:hover .step-circle {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Locked steps (non-clickable) */
.step.locked {
    cursor: not-allowed;
    opacity: 0.5;
}

.step.locked:hover {
    transform: none;
}

.content-card .btn-quick.selected,
.content-card .table-pill.selected {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover)) !important;
    color: white !important;
    border-color: var(--primary-color) !important;
    box-shadow: 0 4px 12px var(--btn-shadow) !important;
}

.content-card .table-pill.selected .table-number {
    color: white !important;
}

.content-card .table-pill.selected .table-label {
    color: rgba(255, 255, 255, 0.9) !important;
}

.content-card .tables-grid {
    display: flex !important;
    gap: 0.75rem !important;
    flex-wrap: wrap !important;
    margin: 1.5rem 0 !important;
    justify-content: center !important;
    max-width: 600px !important;
    margin-left: auto !important;
    margin-right: auto !important;
}

.content-card .table-pill {
    background: white !important;
    border: 2px solid #e5e7eb !important;
    border-radius: 0.75rem !important;
    padding: 1rem !important;
    text-align: center !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    width: 150px !important;
    min-height: 90px !important;
    max-height: 90px !important;
}

.content-card .table-pill:hover {
    border-color: var(--primary-color) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 4px 12px var(--feature-shadow) !important;
}

.content-card .table-number {
    font-size: 1.5rem !important;
    font-weight: 700 !important;
    color: var(--primary-color) !important;
    margin-bottom: 0.5rem !important;
}

.content-card .table-label {
    font-size: 0.85rem !important;
    color: #6b7280 !important;
    font-weight: 600 !important;
}

/* Force stat cards to stay on one row with equal widths */
.game-stats {
    display: flex !important;
    flex-wrap: nowrap !important;
    gap: 1rem;
}

.stat-card {
    flex: 1;
    min-width: 0;
}

.grid-container-game {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 0;
    margin: 0 auto;
}

.grid-container-game canvas {
    display: block;
    border: 2px solid #ddd;
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    cursor: crosshair;
}

.answer-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    margin: 2rem 0 1rem;
}

.btn-answer {
    background: white;
    border: 2px solid #e5e7eb;
    color: #374151;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-answer:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--feature-shadow);
}

.btn-answer:disabled {
    background: #f3f4f6;
    border-color: #e5e7eb;
    color: #9ca3af;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-answer.btn-check {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    border-color: #10b981;
}

.btn-answer.btn-check:hover:not(:disabled) {
    background: linear-gradient(135deg, #059669, #047857);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    color: white;
}

.btn-answer.btn-next {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    border-color: var(--primary-color);
}

.btn-answer.btn-next:hover {
    background: linear-gradient(135deg, var(--primary-hover), #0076A8);
    box-shadow: 0 4px 12px var(--btn-shadow);
    color: white;
}

@keyframes flash-correct {
    0%, 100% {
        background-color: transparent;
        border-color: transparent;
    }
    50% {
        background-color: rgba(76, 175, 80, 0.2);
        border: 3px solid #4caf50;
    }
}

@keyframes flash-incorrect {
    0%, 100% {
        background-color: transparent;
        border-color: transparent;
    }
    50% {
        background-color: rgba(244, 67, 54, 0.2);
        border: 3px solid #f44336;
    }
}

.content-card.flash-correct {
    animation: flash-correct 0.6s ease;
}

.content-card.flash-incorrect {
    animation: flash-incorrect 0.6s ease;
}

.review-item {
    background: white;
    border: 2px solid #e5e7eb;
    border-radius: 0.75rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: all 0.2s ease;
}

.review-item.correct-review {
    border-color: #10b981;
    background: rgba(16, 185, 129, 0.05);
}

.review-item.incorrect-review {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.05);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.review-number {
    background: var(--primary-color);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    flex-shrink: 0;
}

.review-question {
    font-weight: 600;
    color: #1f2937;
    flex: 1;
}

.review-details {
    padding-left: 2.5rem;
    font-size: 0.9rem;
    color: #6b7280;
}

.review-your-answer {
    margin-bottom: 0.25rem;
}

.review-correct-answer {
    color: #10b981;
}