.vcb-hero,
.vcb-panel,
.vcb-preview,
.vcb-result-panel {
    margin-bottom: var(--spacing-lg);
}

.vcb-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: var(--spacing-lg);
    align-items: center;
    padding: clamp(22px, 4vw, 42px);
    border: 1px solid color-mix(in srgb, var(--primary-color) 18%, var(--border-color));
    border-radius: var(--border-radius-large);
    background:
        radial-gradient(circle at 92% 12%, rgba(242, 165, 65, 0.22), transparent 28%),
        linear-gradient(135deg, #f6fffd 0%, #fff9ec 100%);
    box-shadow: var(--shadow-large);
}

.vcb-kicker {
    margin: 0 0 6px;
    color: var(--primary-color);
    font-size: var(--fs-caption);
    font-weight: var(--fw-black);
    text-transform: uppercase;
}

.vcb-hero h2,
.vcb-result-panel h2,
.vcb-dash-header h2 {
    margin: 0 0 var(--spacing-sm);
    color: var(--gray-darkest);
    font-size: clamp(1.55rem, 4vw, 2.55rem);
    line-height: 1.2;
}

.vcb-hero p {
    margin: 0;
    color: var(--gray-darker);
    line-height: 1.8;
}

.vcb-hero-meter {
    min-height: 170px;
    display: grid;
    align-items: end;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    padding: 18px;
    border-radius: var(--border-radius-large);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(0, 96, 100, 0.14);
}

.vcb-hero-meter span {
    display: block;
    border-radius: 999px 999px 8px 8px;
    background: linear-gradient(180deg, var(--warm-accent-color), var(--primary-color));
    box-shadow: 0 12px 22px rgba(0, 96, 100, 0.18);
}

.vcb-hero-meter span:nth-child(1) { height: 48%; }
.vcb-hero-meter span:nth-child(2) { height: 76%; }
.vcb-hero-meter span:nth-child(3) { height: 62%; }
.vcb-hero-meter span:nth-child(4) { height: 90%; }

.vcb-panel,
.vcb-preview,
.vcb-result-panel,
.vcb-student-card,
.vcb-practice-card {
    padding: clamp(18px, 3vw, 30px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    background: var(--surface-color);
    box-shadow: var(--shadow-medium);
}

.vcb-form-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: var(--spacing-md);
}

.vcb-create-actions,
.vcb-alert-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
    justify-content: space-between;
    margin-top: var(--spacing-md);
}

.vcb-main-action {
    min-height: 52px;
    padding-inline: var(--spacing-xl);
    font-weight: var(--fw-black);
    box-shadow: var(--shadow-large);
}

.vcb-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.vcb-section-head h2 {
    margin: 0;
    font-size: 1.25rem;
}

.vcb-pill {
    min-height: 32px;
    display: inline-flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    border-radius: var(--border-radius-pill);
    background: var(--info-tint);
    color: var(--primary-color);
    font-weight: var(--fw-black);
    white-space: nowrap;
}

.vcb-pill.is-warn {
    background: var(--warning-tint);
    color: var(--warning-color);
}

.vcb-table-wrap {
    overflow-x: auto;
}

.vcb-table {
    width: 100%;
    border-collapse: collapse;
}

.vcb-table th,
.vcb-table td {
    padding: 12px 10px;
    border-bottom: 1px solid var(--gray-light);
    text-align: left;
}

.vcb-table th {
    color: var(--gray-darker);
    font-size: var(--fs-caption);
}

.vcb-empty-cell,
.vcb-empty {
    padding: var(--spacing-lg);
    color: var(--gray-dark);
    text-align: center;
}

.vcb-result-panel {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: var(--spacing-lg);
    align-items: center;
    background: linear-gradient(135deg, var(--surface-soft), var(--surface-warm));
}

.vcb-url-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    gap: var(--spacing-sm);
}

.vcb-url-row input {
    min-height: 48px;
    padding: 0 var(--spacing-md);
    border: 1px solid var(--gray-light);
    border-radius: var(--border-radius);
    color: var(--gray-darker);
}

.vcb-dash-header {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    padding: clamp(18px, 3vw, 30px);
    border-radius: var(--border-radius-large);
    color: var(--white);
    background:
        linear-gradient(135deg, rgba(0, 96, 100, 0.95), rgba(23, 37, 38, 0.95));
    box-shadow: var(--shadow-large);
}

.vcb-dash-header h2,
.vcb-dash-header .vcb-kicker,
.vcb-dash-header .vcb-status-text {
    color: var(--white);
}

.vcb-status-text {
    margin: 0;
    opacity: 0.8;
}

.vcb-dash-url {
    margin-bottom: var(--spacing-lg);
}

.vcb-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.vcb-summary-card {
    min-height: 112px;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-large);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-small);
}

.vcb-summary-card span {
    display: block;
    margin-bottom: 8px;
    color: var(--gray-darker);
    font-weight: var(--fw-bold);
}

.vcb-summary-card strong {
    color: var(--primary-color);
    font-size: clamp(2rem, 5vw, 3rem);
    line-height: 1;
}

.vcb-summary-card.is-warn strong {
    color: var(--warning-color);
}

.vcb-dash-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
    gap: var(--spacing-lg);
}

.vcb-student-list,
.vcb-weak-list,
.vcb-word-matrix {
    display: grid;
    gap: var(--spacing-sm);
}

.vcb-student-row,
.vcb-weak-row,
.vcb-word-row {
    display: grid;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px;
    border: 1px solid var(--gray-light);
    border-radius: var(--border-radius);
    background: var(--gray-lightest);
}

.vcb-student-row {
    grid-template-columns: 54px minmax(0, 1fr) auto;
}

.vcb-student-num,
.vcb-rank {
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-pill);
    background: var(--primary-color);
    color: var(--white);
    font-weight: var(--fw-black);
}

.vcb-student-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: 7px;
    color: var(--gray-darker);
    font-size: var(--fs-caption);
}

.vcb-student-meta strong {
    color: var(--gray-darkest);
}

.is-stale {
    color: var(--warning-color);
    font-weight: var(--fw-bold);
}

.vcb-progress-bar,
.vcb-play-progress {
    height: 10px;
    overflow: hidden;
    border-radius: var(--border-radius-pill);
    background: var(--gray-light);
}

.vcb-progress-bar span,
.vcb-play-progress span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--primary-color), var(--warm-accent-color));
    transition: width 0.22s ease;
}

.vcb-mini-counts {
    display: flex;
    gap: 5px;
    font-weight: var(--fw-black);
}

.vcb-mini-counts span,
.vcb-legend span {
    min-width: 30px;
    padding: 4px 8px;
    border-radius: var(--border-radius-pill);
    text-align: center;
}

.ok { background: var(--success-tint); color: var(--success-color); }
.yet { background: var(--warning-tint); color: var(--warning-color); }
.ng { background: var(--danger-tint); color: var(--danger-color); }

.vcb-weak-row {
    grid-template-columns: 52px minmax(0, 1fr) auto;
}

.vcb-weak-row small,
.vcb-word-row small {
    display: block;
    margin-top: 4px;
    color: var(--gray-darker);
}

.vcb-weak-score,
.vcb-word-counts {
    color: var(--gray-darker);
    font-size: var(--fs-caption);
    font-weight: var(--fw-bold);
}

.vcb-word-row {
    grid-template-columns: minmax(180px, 0.9fr) minmax(160px, 1fr) 150px;
}

.vcb-stack-bar {
    height: 18px;
    display: flex;
    overflow: hidden;
    border-radius: var(--border-radius-pill);
    background: var(--gray-light);
}

.vcb-stack-bar span {
    min-width: 0;
}

.vcb-student-body {
    min-height: 100vh;
    background:
        radial-gradient(circle at 20% 0%, rgba(242, 165, 65, 0.28), transparent 26%),
        linear-gradient(135deg, #f6fffd, #fff8e7);
}

.vcb-student-shell {
    width: min(760px, calc(100% - 24px));
    margin: 0 auto;
    padding: clamp(18px, 4vw, 40px) 0;
}

.vcb-student-card h1,
.vcb-practice-card h1 {
    margin: 0 0 var(--spacing-lg);
    font-size: clamp(2rem, 7vw, 3.2rem);
}

.vcb-inline-error {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    background: var(--danger-tint);
    color: var(--danger-color);
    font-weight: var(--fw-bold);
}

.vcb-play-top {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.vcb-play-counter {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    border-radius: var(--border-radius-pill);
    background: var(--primary-color);
    color: var(--white);
    font-weight: var(--fw-black);
    white-space: nowrap;
}

.vcb-word-card {
    width: 100%;
    min-height: 330px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    padding: clamp(24px, 7vw, 58px);
    border: 2px solid color-mix(in srgb, var(--primary-color) 22%, var(--gray-light));
    border-radius: var(--border-radius-large);
    background: linear-gradient(180deg, var(--white), var(--surface-soft));
    color: var(--gray-darkest);
    box-shadow: var(--shadow-large);
}

.vcb-word-english {
    font-size: clamp(2.3rem, 10vw, 5.2rem);
    font-weight: var(--fw-black);
    line-height: 1.1;
    overflow-wrap: anywhere;
}

.vcb-word-japanese {
    color: var(--gray-darker);
    font-size: clamp(1.25rem, 5vw, 2.4rem);
    font-weight: var(--fw-bold);
    overflow-wrap: anywhere;
}

.vcb-result-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--spacing-sm);
}

.vcb-result-btn {
    min-height: 64px;
    border: 0;
    border-radius: var(--border-radius-large);
    font-size: clamp(0.95rem, 3vw, 1.1rem);
    font-weight: var(--fw-black);
    cursor: pointer;
    box-shadow: var(--shadow-small);
    transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.vcb-result-btn:hover,
.vcb-main-action:hover {
    transform: translateY(var(--hover-lift-button));
}

.vcb-result-btn:active,
.vcb-main-action:active {
    transform: translateY(0) scale(0.98);
}

.vcb-finish-summary {
    min-height: 48px;
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    background: var(--surface-soft);
    color: var(--gray-darker);
    font-weight: var(--fw-bold);
}

@media (prefers-reduced-motion: no-preference) {
    .vcb-main-action,
    .vcb-result-btn {
        position: relative;
        overflow: hidden;
    }

    .vcb-main-action::after {
        content: "";
        position: absolute;
        inset: 0;
        translate: -120% 0;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    }

    .vcb-main-action:hover::after {
        animation: vcb-shine 0.72s ease;
    }
}

@keyframes vcb-shine {
    to { translate: 120% 0; }
}

@media (max-width: 760px) {
    .vcb-hero,
    .vcb-form-grid,
    .vcb-result-panel,
    .vcb-url-row,
    .vcb-dash-grid,
    .vcb-word-row {
        grid-template-columns: 1fr;
    }

    .vcb-hero-meter {
        display: none;
    }

    .vcb-summary-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .vcb-dash-header,
    .vcb-section-head,
    .vcb-play-top {
        flex-direction: column;
    }

    .vcb-student-row,
    .vcb-weak-row {
        grid-template-columns: 44px minmax(0, 1fr);
    }

    .vcb-mini-counts,
    .vcb-weak-score {
        grid-column: 2;
    }

    .vcb-result-grid {
        grid-template-columns: 1fr;
    }
}