:root {
    color-scheme: dark;
    --bg: #10151d;
    --panel: rgba(24, 33, 44, 0.9);
    --ink: #f3f7fb;
    --muted: #a8b4c4;
    --line: rgba(255, 255, 255, 0.12);
    --accent: #78d6ff;
    --ok: #7ddc96;
    --warn: #f6c85f;
    --bad: #ff8a9d;
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.32);
    font-family: "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
}

* {
    box-sizing: border-box;
}

body.web-image-alt-check-page {
    margin: 0;
    min-width: 0;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(120, 214, 255, 0.14), transparent 34rem),
        linear-gradient(135deg, #10151d 0%, #111b26 56%, #0b1017 100%);
}

a {
    color: #a8e8ff;
}

button,
textarea,
select {
    font: inherit;
}

button {
    min-height: 42px;
    padding: 9px 14px;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 8px;
    color: var(--ink);
    background: rgba(255, 255, 255, 0.07);
    cursor: pointer;
}

button:focus-visible,
textarea:focus-visible,
select:focus-visible,
a:focus-visible {
    outline: 3px solid rgba(246, 200, 95, 0.75);
    outline-offset: 2px;
}

.wai-primary {
    color: #071217;
    background: var(--accent);
    border-color: var(--accent);
    font-weight: 800;
}

.wai-shell {
    width: min(1160px, calc(100% - 32px));
    margin: 0 auto;
    padding: 24px 0 42px;
}

.wai-hero,
.wai-panel,
.wai-card,
.wai-related,
.wai-comments,
.wai-return a {
    border: 1px solid var(--line);
    background: var(--panel);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.wai-hero {
    padding: 28px;
}

.wai-back {
    display: inline-flex;
    margin-bottom: 18px;
    color: var(--muted);
    text-decoration: none;
    font-size: 0.92rem;
}

.wai-kicker {
    margin: 0 0 8px;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0;
}

h1,
h2,
h3,
p {
    overflow-wrap: anywhere;
}

h1 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.15rem);
    line-height: 1.12;
}

h2 {
    margin: 0 0 16px;
    font-size: 1.34rem;
}

h3 {
    margin: 0 0 10px;
    font-size: 1rem;
}

.wai-lead {
    max-width: 820px;
    margin: 16px 0 0;
    color: #d8e4ef;
    line-height: 1.8;
}

.wai-notice,
.wai-help,
.wai-comment-note {
    color: var(--muted);
    line-height: 1.7;
}

.wai-notice {
    margin: 18px 0 0;
    padding: 14px 16px;
    border: 1px solid rgba(120, 214, 255, 0.28);
    background: rgba(120, 214, 255, 0.08);
    border-radius: 8px;
}

.wai-policy {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 16px 0;
}

.wai-policy span {
    padding: 7px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: #d8e4ef;
    background: rgba(255, 255, 255, 0.06);
    font-size: 0.76rem;
    font-weight: 800;
}

.wai-workspace {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.25fr);
    gap: 18px;
    align-items: start;
}

.wai-panel,
.wai-card,
.wai-related,
.wai-comments {
    padding: 22px;
}

.wai-card,
.wai-related,
.wai-comments,
.wai-return,
.wai-footer {
    margin-top: 18px;
}

.wai-field {
    display: grid;
    gap: 8px;
    margin-bottom: 14px;
    color: #d8e4ef;
    font-weight: 700;
}

textarea,
select {
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 8px;
    color: var(--ink);
    background: #111923;
    padding: 12px;
}

textarea {
    min-height: 172px;
    resize: vertical;
    line-height: 1.7;
}

textarea::placeholder {
    color: rgba(216, 228, 239, 0.55);
}

.wai-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 14px 0 0;
}

.wai-status {
    margin: 0 0 16px;
    padding: 12px 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    color: #d8e4ef;
    background: rgba(255, 255, 255, 0.06);
}

.wai-status.ok {
    border-color: rgba(125, 220, 150, 0.35);
    background: rgba(125, 220, 150, 0.1);
}

.wai-status.warn {
    border-color: rgba(246, 200, 95, 0.35);
    background: rgba(246, 200, 95, 0.1);
}

.wai-status.bad {
    border-color: rgba(255, 138, 157, 0.4);
    background: rgba(255, 138, 157, 0.1);
}

.wai-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin: 0;
}

.wai-metrics div {
    display: grid;
    grid-template-columns: 6em minmax(0, 1fr);
    gap: 10px;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.04);
}

dt {
    color: var(--muted);
    font-size: 0.86rem;
}

dd {
    margin: 0;
    color: var(--ink);
    font-weight: 800;
    overflow-wrap: anywhere;
}

.wai-box {
    margin-top: 16px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.16);
}

.wai-card ul,
.wai-box ul {
    margin: 0;
    padding-left: 1.25em;
    color: #d8e4ef;
    line-height: 1.8;
}

li + li {
    margin-top: 6px;
}

.wai-card p {
    color: #d8e4ef;
    line-height: 1.8;
}

.wai-link-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 10px;
}

.wai-link-grid a,
.wai-return a {
    display: grid;
    gap: 5px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    text-decoration: none;
    background: rgba(255, 255, 255, 0.05);
}

.wai-link-grid span,
.wai-return span,
.wai-return small {
    color: var(--muted);
    line-height: 1.5;
}

.wai-return {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.wai-comments #app-comments,
.wai-comments .comments-widget {
    color: var(--ink);
}

.wai-comments input,
.wai-comments textarea {
    color: var(--ink);
    background: #111923;
    border-color: rgba(255, 255, 255, 0.18);
}

.wai-comments input::placeholder,
.wai-comments textarea::placeholder {
    color: rgba(216, 228, 239, 0.58);
}

.wai-comments button,
.wai-comments input[type="submit"] {
    color: #0b1017;
    background: var(--accent);
    border-color: var(--accent);
    font-weight: 700;
}

.wai-comments :where(.app-comments, .app-comment-form-section) {
    background: rgba(24, 33, 44, 0.96);
    border-color: var(--line);
    color: var(--ink);
}

.wai-comments :where(.app-comments h2, .app-comment-form-section h2, .app-comment-form label, .app-comment-body) {
    color: var(--ink);
}

.wai-comments :where(.app-comment-count, .app-comment-page-status, .app-comment-meta, .app-comments-empty, .app-comment-message) {
    color: var(--muted);
}

.wai-comments :where(.app-comment-admin-reply, .app-comment-reply) {
    background: rgba(255, 255, 255, 0.055);
    border-color: var(--line);
    color: var(--ink);
}

.wai-comments :where(.app-comment-form input:not([type="hidden"]), .app-comment-form textarea, .app-comment-form select) {
    background: #111923;
    border-color: rgba(255, 255, 255, 0.18);
    color: var(--ink);
}

.wai-comments :where(.app-comment-form input::placeholder, .app-comment-form textarea::placeholder) {
    color: #c8d4df;
}

.wai-footer {
    color: var(--muted);
    text-align: center;
    font-size: 0.85rem;
}

@media (max-width: 820px) {
    .wai-shell {
        width: min(100% - 20px, 1160px);
        padding-top: 12px;
    }

    .wai-hero,
    .wai-panel,
    .wai-card,
    .wai-related,
    .wai-comments {
        padding: 18px;
    }

    .wai-workspace,
    .wai-metrics,
    .wai-link-grid,
    .wai-return {
        grid-template-columns: 1fr;
    }

    .wai-metrics div {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    h1 {
        font-size: 2rem;
    }

    .wai-actions button {
        flex: 1 1 128px;
    }
}