/* Naify記事（日英共通）の記事固有スタイル */
.naify-article {
    --nf-brand: #b9652d;
    --nf-brand-bg: #fbefe3;
    --nf-brand-ink: #8a5228;
    --nf-os: #7cbf9a; --nf-os-bg: #e4f3ea; --nf-os-ink: #3f7a5a;
    --nf-php: #9c9fdc; --nf-php-bg: #ecebfa; --nf-php-ink: #5a5ea3;
    --nf-fw: #eba08f; --nf-fw-bg: #fce8e3; --nf-fw-ink: #a95a48;
}

/* --- 図の共通枠 --- */
.nf-fig { margin: 1.75rem 0; }
.nf-fig figcaption { margin-top: .75rem; font-size: .8rem; line-height: 1.8; color: var(--text-light); }
.nf-panel { padding: 1.5rem; border: 1px solid var(--border); border-radius: 14px; background: var(--surface); }

/* --- ロゴ --- */
.nf-logo-wrap { margin: .5rem 0 1.5rem; text-align: center; }
.nf-logo {
    display: inline-block; text-decoration: none; font-family: 'Outfit', 'Inter', sans-serif; font-weight: 700;
    font-size: clamp(3.2rem, 9vw, 5rem); line-height: 1; letter-spacing: -.03em; color: var(--nf-brand);
}
.naify-article .nf-logo,
.naify-article .nf-logo:link,
.naify-article .nf-logo:visited,
.naify-article .nf-logo:hover,
.naify-article .nf-logo:focus,
.naify-article .nf-logo:active { color: var(--nf-brand); text-decoration: none; opacity: 1; }

/* --- 10年タイムライン --- */
.nf-timeline { display: grid; grid-template-columns: 7.5rem repeat(10, minmax(0, 1fr)) 5.5rem; gap: .45rem .25rem; align-items: center; }
.nf-timeline__years { display: contents; }
.nf-timeline__year { font-size: .7rem; text-align: center; color: var(--text-light); }
.nf-timeline__label { font-size: .82rem; font-weight: 700; color: var(--text-dark); line-height: 1.4; }
.nf-timeline__seg {
    height: 2rem; border-radius: 6px; display: flex; align-items: center; justify-content: center;
    font-size: .72rem; font-weight: 700; white-space: nowrap; overflow: hidden;
}
.nf-timeline__count { font-size: .78rem; font-weight: 700; text-align: right; line-height: 1.3; }
.nf-timeline__seg--os { background: var(--nf-os-bg); color: var(--nf-os-ink); border: 1px solid var(--nf-os); }
.nf-timeline__count--os { color: var(--nf-os-ink); }
.nf-timeline__seg--php { background: var(--nf-php-bg); color: var(--nf-php-ink); border: 1px solid var(--nf-php); }
.nf-timeline__count--php { color: var(--nf-php-ink); }
.nf-timeline__seg--fw { background: var(--nf-fw-bg); color: var(--nf-fw-ink); border: 1px solid var(--nf-fw); }
.nf-timeline__count--fw { color: var(--nf-fw-ink); }

/* --- PHPについていく（公式図の再現） --- */
.nf-follow { display: grid; gap: .55rem; background: #fff; }
.nf-follow__row { display: grid; grid-template-columns: 9.5rem minmax(0, 1fr); gap: .75rem; align-items: center; }
.nf-follow__vers, .nf-follow__line { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); text-align: center; }
.nf-follow__vers span { font-size: .75rem; font-weight: 700; color: var(--nf-php-ink); }
.nf-follow__label { display: flex; align-items: center; gap: .45rem; font-size: .82rem; font-weight: 700; color: #4a3b30; }
.nf-follow__label i { width: 1rem; text-align: center; color: var(--nf-brand); }
.nf-follow__bar { padding: .55rem .75rem; border-radius: 8px; text-align: center; font-size: .8rem; font-weight: 700; }
.nf-follow__bar.is-app { background: var(--nf-os-bg); border: 1px solid #c4e2d1; color: var(--nf-os-ink); }
.nf-follow__bar.is-use { background: var(--nf-brand-bg); border: 1px solid #ecc9a6; color: var(--nf-brand-ink); }
.nf-follow__line { position: relative; align-items: center; justify-items: center; height: 2rem; }
.nf-follow__line::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 4px; transform: translateY(-50%); border-radius: 2px; background: var(--nf-php-bg); }
.nf-follow__dot { position: relative; display: inline-block; width: 1rem; height: 1rem; border-radius: 50%; background: var(--nf-php-ink); box-shadow: 0 0 0 3px var(--nf-php-bg), 0 0 0 4px var(--nf-php); }
.nf-follow__dot.is-future { background: #fff; box-shadow: 0 0 0 1px var(--nf-php-ink); }
.nf-follow__legend { display: flex; align-items: center; gap: .5rem; margin: .4rem 0 0; font-size: .75rem; color: var(--text-muted); }
.nf-follow__legend .nf-follow__dot { width: .6rem; height: .6rem; box-shadow: none; }
@media (max-width: 700px) {
    .nf-follow__row { grid-template-columns: 1fr; gap: .3rem; }
    .nf-follow__head > span:first-child { display: none; }
    .nf-follow__vers span { font-size: .62rem; }
}

/* --- AIの出力の比較 --- */
.nf-harness { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.nf-harness__col { padding: 1.1rem; border-radius: 12px; border: 1px solid var(--border); background: #fff; }
.nf-harness__col--without { background: #fef7f5; border-color: #f5cfc5; }
.nf-harness__col--with { background: #fffaf4; border-color: #ecd6bf; }
.nf-harness__title { margin-bottom: .8rem; font-weight: 700; font-size: .9rem; color: var(--text-dark); }
.nf-harness__row { display: grid; grid-template-columns: 3.4rem 1fr; gap: .6rem; align-items: center; padding: .4rem 0; }
.nf-harness__row + .nf-harness__row { border-top: 1px dashed var(--border); }
.nf-harness__ai { font-size: .75rem; font-weight: 700; color: var(--text-muted); }
.nf-harness__ai i { color: var(--card-purple); margin-right: .2rem; }
.nf-harness__out { display: flex; flex-wrap: wrap; gap: .25rem; align-items: center; font-size: .72rem; }
.nf-harness__out span { padding: .15rem .45rem; border-radius: 5px; font-weight: 700; }
.nf-harness__out--a span { background: #fde68a; color: #78350f; }
.nf-harness__out--b span { background: #fbcfe8; color: #831843; }
.nf-harness__out--c span { background: #bae6fd; color: #0c4a6e; }
.nf-harness__out--same span { background: var(--nf-brand-bg); color: var(--nf-brand-ink); border: 1px solid #ecd6bf; }
.nf-harness__out i { color: var(--text-light); font-size: .6rem; }

/* --- なぜPHPか：構成の比較 --- */
.nf-layers2 { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 1rem; align-items: stretch; }
.nf-layers2__col { padding: 1.25rem; border: 1px solid var(--border); border-radius: 14px; background: #fff; border-top: 4px solid; }
.nf-layers2__col--other { border-top-color: var(--nf-fw); }
.nf-layers2__col--php { border-top-color: var(--nf-php); }
.nf-layers2__title { display: flex; align-items: center; gap: .5rem; margin-bottom: .5rem; font-weight: 700; font-size: 1rem; }
.nf-layers2__col--other .nf-layers2__title { color: var(--nf-fw-ink); }
.nf-layers2__col--php .nf-layers2__title { color: var(--nf-php-ink); }
.nf-layers2__col p { margin: 0; font-size: .85rem; line-height: 1.8; color: var(--text-muted); }
.nf-layers2__stack { display: grid; gap: .4rem; margin: .9rem 0; }
.nf-layers2__stack span { display: grid; place-items: center; min-height: 2.4rem; border-radius: 8px; font-size: .85rem; font-weight: 700; }
.nf-layers2__stack .is-app { background: #faf8f5; border: 1px solid #e7e0d6; color: #4a3b30; }
.nf-layers2__stack .is-dep { background: var(--nf-fw-bg); border: 1px dashed var(--nf-fw); color: var(--nf-fw-ink); }
.nf-layers2__stack .is-naify { background: var(--nf-brand-bg); border: 1px solid #ecc9a6; color: var(--nf-brand-ink); }
.nf-layers2__stack .is-php { min-height: 4.6rem; background: var(--nf-php-bg); border: 1px solid var(--nf-php); color: var(--nf-php-ink); }
.nf-layers2__arrow { display: grid; place-items: center; color: var(--text-light); font-size: 1.2rem; }


@media (max-width: 700px) {
    .nf-layers2 { grid-template-columns: 1fr; }
    .nf-layers2__arrow { transform: rotate(90deg); }
}

/* --- なぜ、Naifyなのか（公式トップの再現） --- */
.nf-why { padding: 0; background: none; border: 0; }
.nf-why__head { margin-bottom: 1rem; text-align: center; }
.nf-why__eyebrow { display: block; font-family: 'Outfit', 'Inter', sans-serif; font-size: .72rem; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; color: var(--nf-brand); }
.nf-why__title { display: block; margin-top: .2rem; font-size: 1.15rem; font-weight: 700; color: #3b2a1e; }
.nf-why__grid { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: .9rem; align-items: stretch; }
.nf-why__box { padding: 1.1rem 1.2rem; border-radius: 12px; background: #fff; border: 1px solid #ecd6bf; }
.nf-why__box--pain { border-top: 4px solid var(--nf-fw); }
.nf-why__box--answer { border-top: 4px solid var(--nf-brand); }
.nf-why__kicker { display: flex; align-items: center; gap: .4rem; font-size: .75rem; font-weight: 700; }
.nf-why__box--pain .nf-why__kicker { color: var(--nf-fw-ink); }
.nf-why__box--answer .nf-why__kicker { color: var(--nf-brand); }
.nf-why__box p { margin: .5rem 0 0; font-size: .85rem; line-height: 1.8; color: var(--text-muted); }
.nf-why__box .nf-why__lead { font-size: .98rem; font-weight: 700; line-height: 1.6; color: var(--text-dark); }
.nf-why__arrow { display: grid; place-items: center; color: var(--nf-brand); }
.nf-why figcaption { text-align: center; }
@media (max-width: 700px) {
    .nf-why__grid { grid-template-columns: 1fr; }
    .nf-why__arrow { transform: rotate(90deg); }
}