:root {
    --app-accent: #3DBD6B; /* Green — matches landing page number card */
}

/* MathsFacts-specific question sizing */
.question-text {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
}

.inline-input {
    display: inline-block;
    width: 6rem;
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
    color: var(--color-primary);
    background-color: transparent;
    border: none;
    border-bottom: 3px solid var(--color-primary);
    text-align: center;
    padding: 0 0.25rem;
    margin: 0 0.5rem;
    line-height: 1;
    -moz-appearance: textfield;
}
.inline-input::-webkit-outer-spin-button,
.inline-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.inline-input:focus {
    outline: none;
    border-bottom-color: var(--color-primary);
}
.inline-input:disabled {
    background-color: #f9f9ff;
    border-bottom-color: #d1d5db;
}

/* MathsFacts level-section-title override */
.level-section-title {
    font-weight: 800;
}

/* MathsFacts level grid overrides - fixed height tiles */
.level-grid {
    grid-auto-rows: 120px !important;
}

.level-btn,
.skill-path .level-btn,
#level-selection-container .level-btn,
div[class*="level-btn"] {
    font-weight: 700 !important;
    height: 120px !important;
    max-height: 120px !important;
    min-height: 120px !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
}

.level-title,
.skill-path .level-title,
#level-selection-container .level-title {
    flex: 1 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    hyphens: none !important;
    max-width: 100% !important;
}

.best-time,
.skill-path .best-time,
#level-selection-container .best-time,
.skill-path-time {
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    max-width: 100% !important;
    width: 100% !important;
    height: 1.125rem !important;
    min-height: 1.125rem !important;
    max-height: 1.125rem !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    box-sizing: border-box !important;
    line-height: 1 !important;
}

/* MathsFacts rating overrides with border-color */
.rating-none { background-color: #f3f4f6; color: #374151; }
.rating-beginner { background: linear-gradient(145deg, #f8fafc, #94a3b8); color: #1e293b; border-color: #94a3b8; }
.rating-developing { background: linear-gradient(145deg, #dcfce7, #4ade80); color: #047857; border-color: #6ee7b7; }
.rating-expert { background: linear-gradient(145deg, #ecfdf5, #34d399); color: #065f46; border-color: #34d399; }
.rating-mastery { background: linear-gradient(145deg, #fefbeb, #fbbf24); color: #a16207; border-color: #f59e0b; }
.rating-true-mastery { background: linear-gradient(145deg, #fef7f0, #f9a8d4); color: #9d174d; border-color: #f472b6; }

/* Styles for HTML-based fractions */
.fraction-container {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 0.5rem;
    vertical-align: middle;
}
.fraction-numerator, .fraction-denominator {
    padding: 0.25rem 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.fraction-numerator {
    border-bottom: 3px solid var(--chalk-heading);
}
.fraction-container .inline-input {
    width: 5rem;
    margin: 0.1rem;
    padding: 0.2rem;
    border: 2px solid var(--color-primary);
    border-radius: 0.3rem;
    background-color: #f9f9ff;
}

/* Styles for the FDP conversion table */
.fdp-table {
    width: 100%;
    max-width: 550px;
    margin: 0 auto;
    border-collapse: collapse;
    font-size: clamp(1rem, 3vw, 1.25rem);
}
.fdp-table th, .fdp-table td {
    padding: 0.75rem;
    vertical-align: middle;
    text-align: center;
}
.fdp-table th {
    font-weight: 600;
    color: #1f2937;
}
.fdp-table td {
    height: 90px;
}
.fdp-table .inline-input {
    width: 100%;
    max-width: 120px;
    font-size: 1.25rem;
}
.percentage-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
}

/* Input field feedback states */
.inline-input {
    transition: all 0.3s ease-in-out;
}

.inline-input.correct {
    border-bottom-color: #10b981;
    background-color: rgba(16, 185, 129, 0.08);
}

.inline-input.incorrect {
    border-bottom-color: #ef4444;
    background-color: rgba(239, 68, 68, 0.08);
}

/* Fraction input feedback */
.fraction-container .inline-input.correct {
    border-color: #10b981;
    background-color: rgba(16, 185, 129, 0.08);
}

.fraction-container .inline-input.incorrect {
    border-color: #ef4444;
    background-color: rgba(239, 68, 68, 0.08);
}

/* FDP table input feedback */
.fdp-table .inline-input.correct {
    border-color: #10b981;
    background-color: rgba(16, 185, 129, 0.08);
}

.fdp-table .inline-input.incorrect {
    border-color: #ef4444;
    background-color: rgba(239, 68, 68, 0.08);
}


/* Success screen: green replay button */
#success-screen .btn-primary { background: #10b981; }
#success-screen .btn-primary:hover { background: #059669; }