/**
 * Meta Logic — デザインツール ポータル（design_tools.html）
 * index.html / global.css の Vercel 風ダーク UI と同期
 */

*,
*::before,
*::after {
    box-sizing: border-box !important;
}

html:has(body.dt-body),
html:has(body.dt-body) body.dt-body {
    max-width: 100% !important;
    overflow-x: hidden !important;
    overflow-y: auto !important;
    margin: 0;
    box-sizing: border-box;
}

html:has(body.dt-body) {
    width: 100%;
    scrollbar-gutter: auto;
}

.dt-body {
    font-family: var(--font-family-base);
    color: var(--color-text-primary);
    background-color: transparent;
}

.dt-bg {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background: transparent;
}

.dt-main {
    width: 100%;
    max-width: 1200px;
    margin-left: auto !important;
    margin-right: auto !important;
    padding: var(--space-5) var(--space-page-x) var(--space-7);
    box-sizing: border-box;
    min-width: 0;
}

.dt-hero {
    text-align: center;
    margin-bottom: var(--space-6);
    width: 100%;
    max-width: 100%;
}

.dt-hero-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--space-4);
}

.dt-logo-img {
    height: clamp(52px, 11vw, 72px);
    width: auto;
    max-width: min(100%, 380px);
    display: block;
    filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.8));
}

.dt-hero-title {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: clamp(1.25rem, 3.5vw, 1.75rem);
    font-weight: var(--font-weight-bold);
    margin: 0 0 var(--space-2);
    color: var(--color-text-inverse);
    letter-spacing: 0.02em;
}

.dt-hero-lead {
    margin: 0 auto;
    color: var(--color-text-secondary);
    font-size: clamp(0.95rem, 2.2vw, 1.08rem);
    line-height: var(--line-height-relaxed);
    max-width: 640px;
}

/* --- ポータル：左ヘッダー / 右サムネ＋キャラ --- */
.dt-portal {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: var(--space-5);
    align-items: stretch;
    width: 100%;
    max-width: 100%;
    min-width: 0;
}

.dt-portal__col {
    display: flex;
    flex-direction: column;
    min-width: 0;
    max-width: 100%;
}

.dt-portal__col--left {
    height: 100%;
}

.dt-portal__col--right {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    height: 100%;
    min-height: 0;
}

.dt-portal__col--left .dt-panel--header {
    flex: 1 1 auto;
    height: 100%;
    min-height: 0;
}

.dt-portal__col--right .dt-panel {
    flex: 1 1 0;
    min-height: 0;
}

.dt-panel {
    display: flex;
    flex-direction: column;
    min-width: 0;
    max-width: 100%;
    padding: var(--space-5);
    border-radius: var(--radius-sm);
    border: 1px solid #222222;
    background: rgba(11, 11, 11, 0.65);
    transition: all 0.2s ease;
}

.dt-panel:hover {
    border-color: #444444;
    background: rgba(18, 18, 18, 0.85);
}

.dt-panel__visual {
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: var(--space-4);
    border: 1px solid #222222;
    aspect-ratio: 16 / 9;
    background: var(--color-bg-base);
    max-width: 100%;
}

.dt-panel__visual-img {
    width: 100%;
    max-width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.2s ease;
}

.dt-panel__visual--header .dt-panel__visual-img {
    object-position: center center;
}

.dt-panel__visual--thumb {
    aspect-ratio: unset;
    height: auto;
}

.dt-panel__visual--thumb .dt-panel__visual-img,
.dt-panel__visual-img--thumb {
    width: 100%;
    height: auto;
    max-width: 100%;
    object-fit: cover;
    border-radius: 6px;
    object-position: center center;
}

.dt-panel__visual--char .dt-panel__visual-img {
    object-position: center 20%;
}

.dt-panel:hover .dt-panel__visual-img {
    transform: scale(1.02);
}

.dt-panel__badge {
    margin: 0 0 var(--space-1);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-accent);
}

.dt-panel__title {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-2);
    margin: 0 0 var(--space-3);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-inverse);
    letter-spacing: 0.02em;
}

.dt-panel__desc {
    margin: 0 0 var(--space-4);
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-secondary);
    flex: 1;
}

.dt-panel__cta {
    margin-bottom: 0;
    margin-top: auto;
    width: 100%;
    max-width: 100%;
    flex-shrink: 0;
}

.dt-panel--header .dt-panel__cta {
    margin-bottom: var(--space-4);
    margin-top: 0;
}

.dt-panel--header .dt-panel__subhead {
    margin-top: 0;
}

.dt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 44px;
    height: 44px;
    padding: 0 var(--space-4);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    text-decoration: none;
    font-family: inherit;
    line-height: 1;
    transition: all 0.2s ease;
}

.dt-btn__icon {
    flex-shrink: 0;
}

.dt-btn__label {
    display: inline-block;
    line-height: 1.2;
}

.dt-btn--primary {
    width: 100%;
    max-width: 100%;
    border: 1px solid #222222;
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-text-primary);
}

.dt-btn--primary:hover,
.dt-btn--primary:focus-visible {
    border-color: #444444;
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-inverse);
    transform: translateY(-1px);
}

.dt-panel__subhead {
    margin: 0 0 var(--space-2);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-inverse);
    letter-spacing: 0.02em;
}

.dt-panel__subhint {
    margin: 0 0 var(--space-3);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    color: var(--color-text-secondary);
}

.dt-preset-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(128px, 1fr));
    gap: var(--space-3);
    width: 100%;
    max-width: 100%;
    min-width: 0;
}

.dt-preset-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    max-width: 100%;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid #222222;
    background: rgba(11, 11, 11, 0.72);
    text-decoration: none;
    color: var(--color-text-primary);
    transition: all 0.2s ease;
}

.dt-preset-card:hover,
.dt-preset-card:focus-visible {
    border-color: #444444;
    background: rgba(18, 18, 18, 0.9);
    transform: translateY(-1px);
}

.dt-preset-thumb {
    width: 100%;
    max-width: 100%;
    aspect-ratio: 1500 / 500;
    object-fit: cover;
    display: block;
    background: var(--color-bg-base);
    transition: transform 0.2s ease;
}

.dt-preset-card:hover .dt-preset-thumb {
    transform: scale(1.02);
}

.dt-preset-thumb.is-fallback {
    object-fit: contain;
    padding: 20%;
}

.dt-preset-name {
    display: block;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-align: center;
    line-height: var(--line-height-normal);
}

.dt-code {
    font-size: var(--font-size-sm);
    color: var(--color-text-accent);
    background: rgba(0, 0, 0, 0.35);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid #222222;
}

/* レガシー補助クラス（他スクリプト互換） */
.dt-cards {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    width: 100%;
    max-width: 100%;
}

.dt-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    border-radius: var(--radius-sm);
    border: 1px solid #222222;
    background: rgba(11, 11, 11, 0.65);
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
    max-width: 100%;
    min-width: 0;
}

a.dt-card:hover,
a.dt-card:focus-visible {
    border-color: #444444;
    background: rgba(18, 18, 18, 0.85);
    transform: translateY(-1px);
}

.dt-card-static {
    cursor: default;
}

.dt-placeholder-note {
    margin: 0 0 var(--space-3);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-normal);
}

.dt-preset-placeholder-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--space-2);
    width: 100%;
    max-width: 100%;
}

.dt-preset-placeholder {
    aspect-ratio: 1500 / 500;
    border-radius: var(--radius-sm);
    border: 1px dashed #444444;
    background: rgba(0, 0, 0, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
}

.dt-ph-inner {
    padding: var(--space-2);
    text-align: center;
    line-height: var(--line-height-normal);
}

.dt-card-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

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

.dt-card-title {
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-md);
    margin: 0 0 var(--space-1);
    color: var(--color-text-inverse);
}

.dt-card-desc {
    margin: 0;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-normal);
}

.dt-card-arrow {
    color: var(--color-text-accent);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.dt-subblock {
    margin-top: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-sm);
    background: rgba(11, 11, 11, 0.5);
    border: 1px solid #222222;
}

.dt-subblock h3 {
    margin: 0 0 var(--space-2);
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-bold);
}

.dt-links-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.dt-link-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 44px;
    height: 44px;
    padding: 0 var(--space-4);
    border-radius: var(--radius-pill);
    border: 1px solid #222222;
    background: rgba(255, 255, 255, 0.04);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    text-decoration: none;
    transition: all 0.2s ease;
}

.dt-link-btn:hover,
.dt-link-btn:focus-visible {
    border-color: #444444;
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-inverse);
}

@media (max-width: 768px) {
    .dt-portal {
        display: flex;
        flex-direction: column;
        gap: var(--space-5);
        width: 100%;
        max-width: 100%;
    }

    .dt-portal__col,
    .dt-portal__col--left,
    .dt-portal__col--right {
        display: contents;
        height: auto;
    }

    .dt-portal__col--right {
        gap: 0;
    }

    .dt-portal__col--left .dt-panel--header,
    .dt-portal__col--right .dt-panel {
        flex: none;
        height: auto;
        min-height: 0;
        width: 100%;
        max-width: 100%;
    }

    .dt-main {
        padding-left: var(--space-page-x);
        padding-right: var(--space-page-x);
    }

    .dt-preset-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .dt-panel:hover,
    .dt-btn--primary:hover,
    .dt-preset-card:hover {
        transform: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .dt-panel,
    .dt-panel__visual-img,
    .dt-preset-card,
    .dt-preset-thumb,
    .dt-btn--primary,
    .dt-card,
    .dt-link-btn {
        transition-duration: 0.01ms;
    }

    .dt-panel:hover,
    .dt-btn--primary:hover,
    .dt-preset-card:hover,
    a.dt-card:hover {
        transform: none;
    }

    .dt-panel:hover .dt-panel__visual-img,
    .dt-preset-card:hover .dt-preset-thumb {
        transform: none;
    }
}