.exam-average-tool-form {
    --exam-average-primary: #4f46e5;
    --exam-average-primary-soft: #eef2ff;
    --exam-average-warm: #ffd9b3;
    --exam-average-border: rgba(79, 70, 229, .14);
    --exam-average-shadow: 0 18px 45px rgba(15, 23, 42, .055);
}

.exam-average-builder,
.exam-average-result-shell {
    display: grid;
    gap: 1rem;
}

.exam-average-section,
.exam-average-item-card,
.exam-average-details-toggle {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--exam-average-border);
    border-radius: 24px;
    background: linear-gradient(180deg, rgba(255, 255, 255, .98) 0%, rgba(238, 242, 255, .38) 100%);
    box-shadow: var(--exam-average-shadow);
}

.exam-average-section {
    padding: 1.05rem;
}

.exam-average-section-has-item-list,
.exam-average-item-card {
    overflow: visible;
}

.exam-average-item-card {
    padding: 1rem;
}

.exam-average-section::before,
.exam-average-item-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: 4px;
    background: linear-gradient(90deg, var(--exam-average-primary), var(--exam-average-primary-soft), var(--exam-average-warm));
    pointer-events: none;
}

.exam-average-section-head,
.exam-average-item-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
}

.exam-average-section-head h5 {
    margin: .15rem 0 0;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -.02em;
}

.exam-average-section-copy {
    margin: .25rem 0 0;
    color: #64748b;
    font-size: .9rem;
    line-height: 1.45;
}

.exam-average-add-btn {
    border-radius: 999px;
    color: var(--exam-average-primary);
    font-weight: 800;
    white-space: nowrap;
    border-color: var(--exam-average-border);
    background: rgba(255, 255, 255, .94);
    box-shadow: 0 10px 24px rgba(15, 23, 42, .06);
}

.exam-average-weight-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    max-width: 100%;
    font-size: .78rem;
    font-weight: 700;
    padding: .3em .75em;
    border-radius: 999px;
    background: var(--exam-average-primary-soft);
    color: var(--exam-average-primary);
    border: 1px solid var(--exam-average-border);
    transition: background .2s, color .2s;
    white-space: normal;
    text-align: center;
}

.exam-average-weight-badge[data-exam-average-weight-ok="true"] {
    background: #f0fdf4;
    color: #15803d;
    border-color: rgba(21, 128, 61, .22);
}

.exam-average-weight-badge[data-exam-average-weight-ok="false"] {
    background: #fff1f2;
    color: #e11d48;
    border-color: rgba(225, 29, 72, .2);
}

.exam-average-mode-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .85rem;
}

.exam-average-mode-card {
    display: flex;
    gap: .75rem;
    align-items: flex-start;
    height: 100%;
    border: 1px solid rgba(79, 70, 229, .12);
    border-radius: 20px;
    padding: .95rem;
    background: rgba(255, 255, 255, .88);
    cursor: pointer;
}

.exam-average-mode-card input {
    margin-top: .25rem;
    accent-color: var(--exam-average-primary);
}

.exam-average-mode-card strong,
.exam-average-item-title strong {
    display: block;
    color: #0f172a;
    font-weight: 850;
    line-height: 1.15;
}

.exam-average-mode-card small,
.exam-average-item-title small {
    display: block;
    color: #64748b;
    margin-top: .2rem;
    line-height: 1.35;
}

.exam-average-item-list {
    display: grid;
    gap: .85rem;
    margin-top: 1rem;
}

.exam-average-item-card-head {
    margin-bottom: .95rem;
    padding-bottom: .85rem;
    border-bottom: 1px dashed rgba(15, 23, 42, .10);
}

.exam-average-item-title {
    display: flex;
    align-items: center;
    gap: .65rem;
    min-width: 0;
}

.exam-average-card-icon {
    width: 38px;
    height: 38px;
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    background: var(--exam-average-primary-soft);
    color: var(--exam-average-primary);
    font-weight: 900;
}

.exam-average-icon-btn {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid rgba(79, 70, 229, .14);
    background: rgba(255, 255, 255, .95);
    color: #64748b;
    font-size: 1.25rem;
    font-weight: 800;
    line-height: 1;
    flex: 0 0 auto;
}

.exam-average-icon-btn:disabled {
    opacity: .45;
    cursor: not-allowed;
}

.exam-average-summary-card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--exam-average-border);
    border-radius: 24px;
    padding: 1.25rem;
    background: radial-gradient(circle at top right, rgba(255, 217, 179, .62), transparent 34%), linear-gradient(180deg, rgba(255, 255, 255, .99) 0%, rgba(238, 242, 255, .52) 100%);
    box-shadow: 0 20px 50px rgba(15, 23, 42, .08);
}

.exam-average-summary-card::after {
    content: "";
    position: absolute;
    width: 130px;
    height: 130px;
    right: -46px;
    bottom: -60px;
    border-radius: 999px;
    background: rgba(255, 217, 179, .42);
    pointer-events: none;
}

.exam-average-summary-value {
    font-size: clamp(1.85rem, 3vw, 2.75rem);
    line-height: 1.1;
    font-weight: 850;
    color: #0f172a;
    letter-spacing: -.045em;
    overflow-wrap: anywhere;
    word-break: break-word;
}

.exam-average-detail-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: .85rem;
}

.exam-average-mini-card {
    position: relative;
    height: 100%;
    border-radius: 22px;
    padding: 18px;
    background: rgba(255, 255, 255, .95);
    border: 1px solid rgba(79, 70, 229, .12);
    box-shadow: 0 14px 34px rgba(15, 23, 42, .055);
}

.exam-average-mini-card::before {
    content: "";
    display: block;
    width: 34px;
    height: 4px;
    border-radius: 999px;
    background: var(--exam-average-warm);
    margin-bottom: .85rem;
}

.exam-average-mini-card small,
.exam-average-result-item small {
    display: block;
    color: #64748b;
    font-weight: 700;
    margin-bottom: .35rem;
}

.exam-average-mini-card strong,
.exam-average-result-item strong {
    display: block;
    color: #0f172a;
    font-size: 1.05rem;
    line-height: 1.25;
}

.exam-average-details-toggle {
    padding: 1rem;
}

.exam-average-details-toggle summary {
    cursor: pointer;
    font-weight: 800;
    color: #0f172a;
    list-style: none;
}

.exam-average-details-toggle summary::-webkit-details-marker {
    display: none;
}

.exam-average-details-toggle summary::after {
    content: "+";
    float: right;
    color: var(--exam-average-primary);
    font-weight: 900;
}

.exam-average-details-toggle[open] summary::after {
    content: "−";
}

.exam-average-item-result-list {
    display: grid;
    gap: .75rem;
}

.exam-average-result-item {
    display: grid;
    grid-template-columns: 1.2fr repeat(3, minmax(0, .8fr));
    gap: .75rem;
    border: 1px solid rgba(79, 70, 229, .10);
    border-radius: 18px;
    padding: .85rem;
    background: rgba(255, 255, 255, .86);
}

@media (max-width: 768px) {
    .exam-average-mode-grid,
    .exam-average-detail-grid,
    .exam-average-result-item {
        grid-template-columns: 1fr;
    }

    .exam-average-section-head,
    .exam-average-item-card-head {
        align-items: flex-start;
        flex-direction: column;
    }

    .exam-average-add-btn {
        width: 100%;
    }
}