:root {
    --primary-color: #32CBFF;
    --primary-hover: #1FB6E6;
    --hero-gradient-start: rgba(50,203,255,0.25);
    --hero-gradient-end: rgba(50,203,255,0.10);
    --summary-bg-start: rgba(50,203,255,0.26);
    --summary-bg-end: rgba(50,203,255,0.10);
    --mode-shadow: rgba(50,203,255,0.30);
    --btn-shadow: rgba(50,203,255,0.45);
    --section-bg-start: rgba(50,203,255,0.14);
    --section-bg-end: rgba(50,203,255,0.06);
    --primary-shadow: rgba(50,203,255,0.35);
    --feature-shadow: rgba(50,203,255,0.22);
    --focus-shadow: rgba(50,203,255,0.30);
    --accordion-icon-filter: invert(65%) sepia(55%) saturate(1500%) hue-rotate(165deg) brightness(105%) contrast(101%);

    --mm-primary: #32CBFF;
    --mm-accent: #0077CC;
    --mm-primary-dark: #005A99;
    --mm-primary-light: #E6F7FF;
}

* {
    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;
}

/* ===== Quick-Select Buttons (Level, Game Mode, Time, Questions) ===== */
.content-card .btn-quick.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;
}

/* ===== Settings Pills (Game Types & Shape Types) ===== */
.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: 700px !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: 160px !important;
    min-height: 90px !important;
    max-height: 90px !important;
    aspect-ratio: unset !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-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;
}

/* 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;
}

/* ===== Dual Canvas Display ===== */
.scale-display-area {
    display: flex;
    gap: 2.5rem;
    margin: 1.5rem 0;
    align-items: flex-start;
    justify-content: center;
    flex-wrap: wrap;
}

.scale-canvas-wrapper {
    text-align: center;
}

.scale-canvas-label {
    font-size: 1rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.scale-canvas-wrapper canvas {
    display: block;
    border: 2px solid #ddd;
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    max-width: 100%;
    background: white;
}

.scale-canvas-wrapper canvas#canvas2 {
    cursor: crosshair;
}

/* ===== Draw Mode Hint ===== */
.scale-hint-box {
    background: var(--mm-primary-light, #E6F7FF);
    color: var(--mm-accent, #0077CC);
    padding: 0.75rem 1.25rem;
    border-radius: 0.6rem;
    font-size: 0.9rem;
    text-align: center;
    margin: 0 auto 1rem;
    max-width: 500px;
    display: none;
}

/* ===== Draw Mode Answer Buttons ===== */
.answer-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    margin: 1.5rem 0 0.5rem;
}

.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-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), var(--mm-accent));
    box-shadow: 0 4px 12px var(--btn-shadow);
    color: white;
}

/* ===== Feedback Flash Effects ===== */
@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 Overrides ===== */
.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;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .scale-display-area {
        gap: 1.5rem;
    }

    .content-card .table-pill {
        width: 130px !important;
    }
}

@media (max-width: 480px) {
    .scale-canvas-wrapper canvas {
        width: 100%;
        height: auto;
    }
}