/* =========================================================
   AIシゴト図鑑 — フロントページ v3（プレミアム）
   設計先行 / CSS自前描画 / 外部依存ゼロ / モーション最小
   単一世界（明色）に意図的にコミット。全て #aizk-home スコープ。
   ========================================================= */

#aizk-home.aizk-home {
  /* --- color tokens（琥珀寄りの温かいニュートラル） --- */
  --paper: #FBF8F2;
  --paper-2: #F5EFE4;
  --ink: #14181F;
  --ink-2: #3A4250;
  --ink-3: #6B7280;
  --navy: #0E1626;
  --navy-2: #182339;
  --amber: #C2610C;
  --amber-bright: #E8930C;
  --gold: #F5C24B;
  --line: #EAE2D4;
  --line-2: #F0EADD;
  --surface: #FFFFFF;

  --sh-1: 0 1px 2px rgba(20,24,31,.04);
  --sh-2: 0 14px 34px -18px rgba(20,24,31,.28);
  --sh-3: 0 40px 80px -34px rgba(14,22,38,.42);

  --jp: "Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic","Meiryo",sans-serif;
  --mono: ui-monospace,"SF Mono","SFMono-Regular",Menlo,Consolas,"Courier New",monospace;

  --r: 16px;
  --r-lg: 24px;
  --wrap: 1120px;

  color: var(--ink);
  background: var(--paper);
  font-family: var(--jp);
  line-height: 1.85;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  max-width: 100vw;
}

#aizk-home .aizk-wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }
#aizk-home .aizk-mono { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: .02em; }

/* overflow guard */
#aizk-home .aizk-hero__grid > *, #aizk-home .aizk-bento__grid > *,
#aizk-home .aizk-stats__row > *, #aizk-home .aizk-steps > *,
#aizk-home .aizk-tile--wide > *, #aizk-home .aizk-tile--dark > *,
#aizk-home .aizk-card, #aizk-home .aizk-bars__row, #aizk-home .aizk-viz-row { min-width: 0; }

/* ---------- buttons ---------- */
#aizk-home .aizk-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: 15px 30px; border-radius: 999px; font-weight: 700; font-size: 1rem; line-height: 1.2;
  text-decoration: none; transition: transform .16s ease, box-shadow .16s ease, background-color .16s ease;
}
#aizk-home .aizk-btn__arrow { transition: transform .16s ease; }
#aizk-home .aizk-btn:hover .aizk-btn__arrow { transform: translateX(3px); }
#aizk-home .aizk-btn--primary { background: var(--amber); color: #fff; box-shadow: 0 12px 26px -12px rgba(194,97,12,.7); }
#aizk-home .aizk-btn--primary:hover { background: var(--amber-bright); transform: translateY(-2px); box-shadow: 0 18px 32px -14px rgba(194,97,12,.72); }
#aizk-home .aizk-btn--ghost { background: var(--surface); color: var(--ink); border: 1.5px solid var(--line); }
#aizk-home .aizk-btn--ghost:hover { border-color: var(--ink); transform: translateY(-2px); }
#aizk-home .aizk-btn--gold { background: var(--gold); color: #3a2905; box-shadow: 0 12px 26px -14px rgba(245,194,75,.75); }
#aizk-home .aizk-btn--gold:hover { transform: translateY(-2px); filter: brightness(1.04); }
#aizk-home .aizk-btn--lg { padding: 18px 42px; font-size: 1.08rem; }

/* ---------- section head ---------- */
#aizk-home .aizk-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
#aizk-home .aizk-head__eyebrow { font-size: .72rem; color: var(--amber); text-transform: uppercase; letter-spacing: .22em; margin-bottom: 14px; }
#aizk-home .aizk-head__title { font-size: clamp(1.5rem,4.6vw,2.15rem); font-weight: 800; line-height: 1.42; letter-spacing: .01em; text-wrap: balance; }
#aizk-home .aizk-head__sub { margin-top: 14px; color: var(--ink-3); font-size: 1rem; }

/* ============ HERO ============ */
#aizk-home .aizk-hero { position: relative; overflow: clip; padding: clamp(52px,9vw,96px) 0 clamp(48px,8vw,84px); }
#aizk-home .aizk-hero__paper {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(78% 62% at 90% 2%, rgba(232,147,12,.14), transparent 60%),
    radial-gradient(60% 60% at 2% 100%, rgba(14,22,38,.05), transparent 60%);
}
#aizk-home .aizk-hero__paper::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(20,24,31,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20,24,31,.045) 1px, transparent 1px);
  background-size: 30px 30px;
  -webkit-mask-image: radial-gradient(90% 80% at 60% 30%, #000 0%, transparent 72%);
  mask-image: radial-gradient(90% 80% at 60% 30%, #000 0%, transparent 72%);
}
#aizk-home .aizk-hero__grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr; gap: clamp(40px,6vw,60px); align-items: center; }

#aizk-home .aizk-eyebrow {
  display: inline-flex; align-items: center; gap: 9px; font-size: .8rem; font-weight: 700; color: var(--amber);
  background: rgba(194,97,12,.08); border: 1px solid rgba(194,97,12,.16);
  padding: 7px 15px; border-radius: 999px; margin-bottom: 24px; letter-spacing: .02em;
}
#aizk-home .aizk-eyebrow__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 4px rgba(194,97,12,.16); }
#aizk-home .aizk-hero__title {
  font-size: clamp(2.2rem,8.2vw,3.85rem); font-weight: 800; line-height: 1.15;
  letter-spacing: -.01em; text-wrap: balance; margin-bottom: 24px;
}
#aizk-home .aizk-hero__title em {
  font-style: normal; color: var(--amber); position: relative; white-space: nowrap;
}
#aizk-home .aizk-hero__title em::after {
  content: ""; position: absolute; left: -.04em; right: -.04em; bottom: .08em; height: .16em;
  background: linear-gradient(90deg, rgba(232,147,12,.35), rgba(232,147,12,.0));
  border-radius: 2px; z-index: -1;
}
#aizk-home .aizk-hero__lead { max-width: 30em; font-size: clamp(1rem,2.5vw,1.1rem); line-height: 1.9; color: var(--ink-2); margin-bottom: 30px; }
#aizk-home .aizk-hero__lead strong { color: var(--ink); font-weight: 700; }
#aizk-home .aizk-hero__cta { display: flex; flex-wrap: wrap; gap: 14px; }
#aizk-home .aizk-hero__trust { list-style: none; margin: 24px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--ink-3); font-size: .86rem; }
#aizk-home .aizk-hero__trust li { position: relative; padding-left: 21px; }
#aizk-home .aizk-hero__trust li::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 14px; height: 14px; border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, var(--amber) 0 42%, transparent 44%), rgba(194,97,12,.14);
}

/* hero stage（多層カード） */
#aizk-home .aizk-hero__stage { position: relative; justify-self: center; width: 100%; max-width: 460px; min-height: 300px; }
#aizk-home .aizk-hero__glow { position: absolute; inset: 4% 2% -8% 4%; border-radius: 40px; background: radial-gradient(58% 58% at 72% 24%, rgba(232,147,12,.3), transparent 70%); filter: blur(34px); z-index: 0; }

#aizk-home .aizk-card { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: 22px; }
#aizk-home .aizk-card--back {
  position: absolute; z-index: 1; right: -6px; top: -30px; width: 62%; padding: 18px 18px 20px;
  box-shadow: var(--sh-2); transform: rotate(3deg); opacity: 0; transition: opacity .6s ease, transform .6s ease;
}
#aizk-home.is-in .aizk-card--back { opacity: 1; transform: rotate(3deg) translateY(0); }
#aizk-home .aizk-card__cap { font-size: .62rem; color: var(--ink-3); letter-spacing: .16em; margin-bottom: 12px; }
#aizk-home .aizk-donut {
  width: 84px; height: 84px; border-radius: 50%; margin: 0 auto 10px;
  background: conic-gradient(var(--amber) 0 46%, var(--amber-bright) 46% 72%, var(--gold) 72% 88%, var(--line) 88% 100%);
  -webkit-mask: radial-gradient(circle 30px at 50% 50%, transparent 98%, #000 100%);
  mask: radial-gradient(circle 30px at 50% 50%, transparent 98%, #000 100%);
}
#aizk-home .aizk-card__note { font-size: .72rem; color: var(--ink-3); text-align: center; }

#aizk-home .aizk-card--front { position: relative; z-index: 2; padding: 24px; box-shadow: var(--sh-3); }
#aizk-home .aizk-card__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
#aizk-home .aizk-card__tag { font-size: .68rem; color: var(--ink-3); background: var(--line-2); padding: 5px 11px; border-radius: 999px; }
#aizk-home .aizk-card__dots { display: flex; gap: 5px; }
#aizk-home .aizk-card__dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
#aizk-home .aizk-card__label { font-size: .82rem; color: var(--ink-3); margin-bottom: 4px; }
#aizk-home .aizk-amount { display: flex; align-items: baseline; gap: 1px; font-weight: 800; color: var(--ink); line-height: 1.05; letter-spacing: -.02em; }
#aizk-home .aizk-amount__yen { font-size: 1.5rem; }
#aizk-home .aizk-amount__num { font-size: clamp(2.3rem,7vw,2.9rem); font-variant-numeric: tabular-nums; }
#aizk-home .aizk-amount__per { font-size: .95rem; font-weight: 700; color: var(--ink-3); margin-left: 5px; }
#aizk-home .aizk-card__sub { font-size: .78rem; color: var(--ink-3); margin: 6px 0 20px; }
#aizk-home .aizk-card__sub .aizk-mono { color: var(--ink-2); }

#aizk-home .aizk-bars { display: grid; gap: 12px; }
#aizk-home .aizk-bars__row { display: grid; grid-template-columns: 84px 1fr; align-items: center; gap: 12px; }
#aizk-home .aizk-bars__k { font-size: .72rem; color: var(--ink-3); }
#aizk-home .aizk-track { position: relative; height: 10px; background: var(--line-2); border-radius: 999px; overflow: hidden; }
#aizk-home .aizk-track i { position: absolute; inset: 0 auto 0 0; width: 0; border-radius: 999px; background: linear-gradient(90deg, var(--amber-bright), var(--amber)); transition: width 1.05s cubic-bezier(.2,.7,.25,1); }
#aizk-home.is-in .aizk-track i { width: var(--w); }
/* 走査シマー（一度だけ） */
#aizk-home.is-in .aizk-card--front .aizk-track i::after {
  content: ""; position: absolute; inset: 0; border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.55), transparent);
  transform: translateX(-100%); animation: aizk-shim 1.1s ease .5s 1;
}
@keyframes aizk-shim { to { transform: translateX(100%); } }

#aizk-home .aizk-card__foot { margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--line); }
#aizk-home .aizk-chip { display: inline-flex; align-items: center; font-size: .78rem; font-weight: 700; color: #7a4e08; background: rgba(245,194,75,.24); padding: 7px 13px; border-radius: 999px; }

/* ============ STATS ============ */
#aizk-home .aizk-stats { padding: clamp(8px,2vw,20px) 0 clamp(16px,3vw,28px); }
#aizk-home .aizk-stats__row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--sh-1);
}
#aizk-home .aizk-stat { padding: 22px 20px; text-align: center; border-top: 1px solid var(--line-2); border-left: 1px solid var(--line-2); }
#aizk-home .aizk-stat:nth-child(-n+2) { border-top: none; }
#aizk-home .aizk-stat:nth-child(odd) { border-left: none; }
#aizk-home .aizk-stat__n { display: block; font-size: clamp(1.7rem,5.5vw,2.15rem); font-weight: 800; color: var(--amber); line-height: 1.1; font-variant-numeric: tabular-nums; }
#aizk-home .aizk-stat__u { font-size: .5em; font-weight: 700; margin-left: 2px; }
#aizk-home .aizk-stat__l { display: block; margin-top: 9px; font-size: .66rem; color: var(--ink-3); text-transform: uppercase; }

/* ============ BENTO ============ */
#aizk-home .aizk-bento { padding: clamp(64px,12vw,110px) 0; }
#aizk-home .aizk-bento__grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
#aizk-home .aizk-tile {
  position: relative; display: block; text-decoration: none; color: inherit;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 30px 28px; box-shadow: var(--sh-1); transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
#aizk-home a.aizk-tile:hover { transform: translateY(-4px); box-shadow: var(--sh-2); border-color: #E1D8C6; }
#aizk-home .aizk-ic { display: inline-grid; place-items: center; width: 50px; height: 50px; border-radius: 14px; background: rgba(194,97,12,.09); color: var(--amber); margin-bottom: 16px; }
#aizk-home .aizk-ic svg { width: 24px; height: 24px; }
#aizk-home .aizk-tile__kicker { font-size: .68rem; color: var(--amber); text-transform: uppercase; letter-spacing: .16em; margin-bottom: 10px; }
#aizk-home .aizk-tile__kicker--gold { color: var(--gold); }
#aizk-home .aizk-tile__title { font-size: 1.24rem; font-weight: 700; line-height: 1.5; margin-bottom: 10px; text-wrap: balance; }
#aizk-home .aizk-tile__text { color: var(--ink-2); font-size: .94rem; line-height: 1.8; margin-bottom: 16px; }
#aizk-home .aizk-tile__link { color: var(--amber); font-weight: 700; font-size: .94rem; }
#aizk-home a.aizk-tile:hover .aizk-tile__link { text-decoration: underline; text-underline-offset: 3px; }

/* wide 診断タイル（横並び＋ミニ可視化） */
#aizk-home .aizk-tile--wide { display: flex; flex-direction: column; gap: 26px; }
#aizk-home .aizk-tile--wide .aizk-tile__title { font-size: 1.42rem; }
#aizk-home .aizk-tile__viz { display: grid; gap: 12px; align-content: center; }
#aizk-home .aizk-viz-row { display: grid; grid-template-columns: 60px 1fr; align-items: center; gap: 12px; font-size: .72rem; color: var(--ink-3); }
#aizk-home .aizk-viz-row .aizk-track { height: 11px; }

/* dark 補助金タイル */
#aizk-home .aizk-tile--dark { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%); border: none; color: #fff; display: flex; flex-direction: column; gap: 22px; align-items: flex-start; overflow: hidden; }
#aizk-home .aizk-tile--dark::before { content: ""; position: absolute; right: -10%; top: -30%; width: 55%; height: 120%; background: radial-gradient(circle, rgba(245,194,75,.16), transparent 68%); }
#aizk-home .aizk-tile--dark .aizk-tile__body { position: relative; }
#aizk-home .aizk-tile--dark .aizk-tile__title { color: #fff; }
#aizk-home .aizk-tile--dark .aizk-tile__text { color: #C6CFDE; }

/* ============ HOW ============ */
#aizk-home .aizk-how { padding: clamp(56px,10vw,96px) 0; background: linear-gradient(180deg, transparent, var(--paper-2)); }
#aizk-home .aizk-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr; gap: 16px; }
#aizk-home .aizk-step { position: relative; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); padding: 30px 26px; box-shadow: var(--sh-1); }
#aizk-home .aizk-step__n { display: inline-block; font-size: 1.05rem; font-weight: 700; color: var(--amber); letter-spacing: .04em; margin-bottom: 14px; padding-bottom: 6px; border-bottom: 2px solid rgba(194,97,12,.28); }
#aizk-home .aizk-step__t { font-size: 1.1rem; font-weight: 700; line-height: 1.55; margin-bottom: 8px; text-wrap: balance; }
#aizk-home .aizk-step__d { color: var(--ink-3); font-size: .92rem; }

/* ============ FINAL ============ */
#aizk-home .aizk-final { padding: clamp(28px,5vw,52px) 0 clamp(64px,12vw,112px); }
#aizk-home .aizk-final__panel {
  position: relative; overflow: hidden; text-align: center;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff;
  border-radius: 32px; padding: clamp(48px,9vw,90px) 24px;
}
#aizk-home .aizk-final__paper {
  position: absolute; inset: 0;
  background-image: linear-gradient(to right, rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(to bottom, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(70% 70% at 50% 0%, #000, transparent 72%);
  mask-image: radial-gradient(70% 70% at 50% 0%, #000, transparent 72%);
}
#aizk-home .aizk-final__glow { position: absolute; inset: -40% 25% auto; height: 300px; background: radial-gradient(50% 100% at 50% 0%, rgba(232,147,12,.38), transparent 70%); filter: blur(18px); }
#aizk-home .aizk-final__title { position: relative; font-size: clamp(1.5rem,5.2vw,2.35rem); font-weight: 800; line-height: 1.42; margin-bottom: 14px; text-wrap: balance; }
#aizk-home .aizk-final__text { position: relative; color: #C6CFDE; margin-bottom: 30px; }
#aizk-home .aizk-final .aizk-btn { position: relative; }

/* ============ reveal（copy） ============ */
@media (prefers-reduced-motion: no-preference) {
  #aizk-home .aizk-hero__copy > * { opacity: 0; transform: translateY(16px); animation: aizk-rise .62s cubic-bezier(.2,.7,.3,1) forwards; }
  #aizk-home .aizk-hero__title { animation-delay: .05s; }
  #aizk-home .aizk-hero__lead { animation-delay: .1s; }
  #aizk-home .aizk-hero__cta { animation-delay: .15s; }
  #aizk-home .aizk-hero__trust { animation-delay: .2s; }
  #aizk-home .aizk-card--front { opacity: 0; transform: translateY(18px); animation: aizk-rise .7s cubic-bezier(.2,.7,.3,1) .12s forwards; }
}
@keyframes aizk-rise { to { opacity: 1; transform: translateY(0); } }

/* ============ responsive ============ */
@media (max-width: 400px) { #aizk-home .aizk-br-sp { display: none; } }
@media (min-width: 680px) {
  #aizk-home .aizk-stats__row { grid-template-columns: repeat(4, 1fr); }
  #aizk-home .aizk-stat { border-top: none; }
  #aizk-home .aizk-stat:first-child { border-left: none; }
  #aizk-home .aizk-steps { grid-template-columns: repeat(3, 1fr); }
  #aizk-home .aizk-bento__grid { grid-template-columns: 1fr 1fr; }
  #aizk-home .aizk-tile--wide { grid-column: 1 / -1; flex-direction: row; align-items: center; gap: 44px; }
  #aizk-home .aizk-tile--wide .aizk-tile__body { flex: 1 1 54%; }
  #aizk-home .aizk-tile--wide .aizk-tile__viz { flex: 1 1 46%; }
  #aizk-home .aizk-tile--dark { flex-direction: row; align-items: center; justify-content: space-between; }
  #aizk-home .aizk-tile--dark .aizk-btn { flex: 0 0 auto; white-space: nowrap; }
}
@media (min-width: 960px) {
  #aizk-home .aizk-hero__grid { grid-template-columns: 1.04fr .96fr; }
  #aizk-home .aizk-hero__stage { justify-self: end; max-width: 470px; }
  #aizk-home .aizk-hero__title { font-size: clamp(3rem,4.4vw,3.85rem); }
}