/* ------------------------------------------------------------------
   トップページのヒーロー
   背景は logo.svg と同じ #22d3ee → #009ef3 のグラデーション。
   ------------------------------------------------------------------ */
.site-hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(60% 120% at 78% 40%, rgba(34, 211, 238, .30) 0%, rgba(34, 211, 238, 0) 70%),
        linear-gradient(135deg, #0b1c3f 0%, #0b3d91 45%, #009ef3 100%);
}

/* 背景の網目模様(グリッド)。画像を足さずCSSだけで描く */
.site-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, .07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, .07) 1px, transparent 1px);
    background-size: 120px 120px, 120px 120px;
    pointer-events: none;
}

.site-hero__inner {
    position: relative;
    z-index: 1;
    padding: 4.5rem 0 4rem;
    max-width: 44rem;
}

.site-hero__eyebrow {
    margin: 0 0 .75rem;
    color: #7dd3fc;
    font-size: .875rem;
    font-weight: 600;
    letter-spacing: .08em;
}

.site-hero__eyebrow::before {
    content: "";
    display: inline-block;
    width: 2.5rem;
    height: 3px;
    margin-right: .75rem;
    vertical-align: middle;
    border-radius: 2px;
    background: linear-gradient(90deg, #22d3ee, #60a5fa);
}

.site-hero__title {
    margin: 0 0 1rem;
    color: #fff;
    font-size: clamp(1.75rem, 3.6vw, 2.75rem);
    font-weight: 700;
    line-height: 1.35;
}

.site-hero__lead {
    margin: 0 0 1.75rem;
    color: #bfdbfe;
    font-size: 1.0625rem;
    line-height: 1.8;
}

.site-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: .75rem;
}

@media (max-width: 767.98px) {
    .site-hero__inner {
        padding: 3rem 0 2.75rem;
    }
    .site-hero__lead {
        font-size: 1rem;
    }
    .site-hero__actions .btn {
        flex: 1 1 100%;
    }
}

/* ------------------------------------------------------------------
   ツールページ共通
   ------------------------------------------------------------------ */
.tool-result-box {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    white-space: pre-wrap;
    word-break: break-word;
}

.tool-count {
    font-size: .8125rem;
}