/* AI比較 — 同一条件を三つの知性へ通す実験室。 */
body.page-compare {
  --compare-cyan: #65ddff;
  --compare-coral: #ff735e;
  --compare-violet: #9181ff;
  --compare-ink: #070910;
  background: var(--compare-ink);
  color: #f8f8fb;
}

body.page-compare .context-canvas {
  opacity: 0.22;
  mix-blend-mode: screen;
}

body.page-compare .site-header {
  top: 0;
  min-height: 78px;
  padding: 0 var(--pad);
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  background:
    linear-gradient(
      90deg,
      rgba(101, 221, 255, 0.2) 0 33.333%,
      rgba(255, 115, 94, 0.18) 33.333% 66.666%,
      rgba(145, 129, 255, 0.2) 66.666%
    ),
    #070910;
  color: #fff;
}

body.page-compare .brand::after {
  content: "TRIAD TEST / SAME INPUT";
  margin-left: 13px;
  color: rgba(255, 255, 255, 0.56);
  font: 800 9px/1 var(--mono);
  letter-spacing: 0.14em;
}

body.page-compare .brand-dot {
  width: 24px;
  height: 8px;
  border-radius: 0;
  background: linear-gradient(
    90deg,
    var(--compare-cyan) 0 33%,
    var(--compare-coral) 33% 66%,
    var(--compare-violet) 66%
  );
  transform: none;
}

body.page-compare .nav {
  gap: 0;
}

body.page-compare .nav a {
  padding: 12px 10px;
  border-bottom: 2px solid transparent;
  color: #fff;
}

body.page-compare .nav a[aria-current="page"] {
  border-color: var(--compare-violet);
  color: #fff;
  opacity: 1;
}

body.page-compare .header-join {
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.54);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

body.page-compare .hero-triad {
  min-height: 100svh;
  background: var(--compare-ink) !important;
}

body.page-compare .hero-triad-shell {
  display: grid;
  place-items: center;
  align-content: center;
  min-height: calc(100svh - 220px);
}

body.page-compare .hero-triad-copy {
  position: relative;
  z-index: 6;
  width: min(940px, 78vw);
  isolation: isolate;
  text-align: center;
}

body.page-compare .hero-triad-copy::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -30px -42px -34px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 42px 124px 42px 42px;
  background: linear-gradient(
    118deg,
    rgba(4, 6, 12, 0.82) 0%,
    rgba(4, 6, 12, 0.64) 64%,
    rgba(4, 6, 12, 0.42) 100%
  );
  box-shadow:
    0 30px 90px rgba(0, 0, 0, 0.32),
    inset 0 1px rgba(255, 255, 255, 0.08);
  -webkit-backdrop-filter: blur(18px) saturate(116%);
  backdrop-filter: blur(18px) saturate(116%);
}

body.page-compare .hero-triad h1 {
  margin-inline: auto;
  color: #fff;
}

body.page-compare .hero-triad .serif {
  background: linear-gradient(
    90deg,
    var(--compare-cyan),
    var(--compare-coral),
    var(--compare-violet)
  );
  background-clip: text;
  color: #b8adff !important;
  -webkit-text-fill-color: #b8adff;
  text-shadow: 0 0 32px rgba(145, 129, 255, 0.22);
}

body.page-compare .hero-triad .subnav {
  justify-content: center;
  margin-inline: auto;
}

body.page-compare .hero-triad .page-visual {
  inset: 0;
  width: 100%;
  clip-path: none;
  opacity: 0.12;
  filter: grayscale(0.7) contrast(1.2);
}

body.page-compare .hero-triad .page-visual::after {
  background: radial-gradient(
    circle at 50% 50%,
    transparent 0 18%,
    var(--compare-ink) 76%
  );
}

body.page-compare .hero-triad-field {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

body.page-compare .triad-lane {
  padding: 132px 22px 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  clip-path: none;
}

body.page-compare .triad-lane.chatgpt {
  background: linear-gradient(
    180deg,
    rgba(101, 221, 255, 0.24),
    transparent 58%
  );
  color: var(--compare-cyan);
}

body.page-compare .triad-lane.claude {
  background: linear-gradient(0deg, rgba(255, 115, 94, 0.22), transparent 62%);
  color: var(--compare-coral);
}

body.page-compare .triad-lane.gemini {
  background: linear-gradient(
    180deg,
    rgba(145, 129, 255, 0.22),
    transparent 66%
  );
  color: var(--compare-violet);
}

body.page-compare .hero-triad-field > i {
  background: linear-gradient(
    90deg,
    var(--compare-cyan),
    var(--compare-coral),
    var(--compare-violet)
  );
  box-shadow: 0 0 26px rgba(255, 255, 255, 0.24);
  animation: compare-scan 3.2s ease-in-out infinite alternate;
}

body.page-compare .section {
  border-color: rgba(255, 255, 255, 0.14);
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    #090c14;
  background-size: 48px 48px;
  color: #fff;
}

body.page-compare .compare-stage {
  background-color: #06080d;
}

body.page-compare .section-label,
body.page-compare .intro p {
  color: rgba(255, 255, 255, 0.58);
}

body.page-compare .triad {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: #0d111c;
}

body.page-compare .triad button:nth-child(1) {
  --model-color: var(--compare-cyan);
}

body.page-compare .triad button:nth-child(2) {
  --model-color: var(--compare-coral);
}

body.page-compare .triad button:nth-child(3) {
  --model-color: var(--compare-violet);
}

body.page-compare .model-panel,
body.page-compare .ledger,
body.page-compare .benefit-line,
body.page-compare .faq details {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.035);
  color: #fff;
}

body.page-compare .site-footer {
  position: relative;
  border-top: 0;
  background: #04050a;
  color: #fff;
}

body.page-compare .site-footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 7px;
  background: linear-gradient(
    90deg,
    var(--compare-cyan) 0 33.333%,
    var(--compare-coral) 33.333% 66.666%,
    var(--compare-violet) 66.666%
  );
}

@keyframes compare-scan {
  from {
    top: 32%;
  }
  to {
    top: 68%;
  }
}

@media (max-width: 980px) {
  body.page-compare .nav {
    background:
      linear-gradient(
        90deg,
        rgba(101, 221, 255, 0.18),
        rgba(255, 115, 94, 0.18),
        rgba(145, 129, 255, 0.18)
      ),
      #070910;
  }
}

@media (max-width: 600px) {
  body.page-compare .brand::after {
    display: none;
  }

  body.page-compare .hero-triad-copy {
    width: 100%;
  }

  body.page-compare .hero-triad-copy::before {
    inset: -18px -14px -24px;
    border-radius: 24px 62px 24px 24px;
    background: rgba(4, 6, 12, 0.74);
    -webkit-backdrop-filter: blur(13px) saturate(110%);
    backdrop-filter: blur(13px) saturate(110%);
  }

  body.page-compare .hero-triad-field {
    height: 44%;
  }

  body.page-compare .triad-lane {
    padding: 76px 8px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  body.page-compare .hero-triad-field > i {
    top: 50%;
    animation: none;
  }
}