:root {
  color-scheme: dark;
  --bg: #080812;
  --panel: rgba(17, 19, 38, 0.86);
  --panel-strong: rgba(25, 28, 56, 0.96);
  --cyan: #00f6ff;
  --pink: #ff2bd6;
  --yellow: #ffe66d;
  --green: #7cffb2;
  --text: #edf7ff;
  --muted: #c2d4e6;
  --line: rgba(0, 246, 255, 0.48);
  --shadow: 0 0 34px rgba(0, 246, 255, 0.2), 0 0 72px rgba(255, 43, 214, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background:
    linear-gradient(115deg, transparent 0 42%, rgba(255, 43, 214, 0.11) 42% 43%, transparent 43% 100%),
    linear-gradient(90deg, rgba(0, 246, 255, 0.09) 1px, transparent 1px),
    linear-gradient(rgba(255, 43, 214, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 230, 109, 0.04) 2px, transparent 2px),
    radial-gradient(circle at top left, rgba(255, 43, 214, 0.3), transparent 34rem),
    radial-gradient(circle at 90% 12%, rgba(0, 246, 255, 0.24), transparent 30rem),
    radial-gradient(circle at 50% 105%, rgba(124, 255, 178, 0.12), transparent 28rem),
    var(--bg);
  background-size: auto, 44px 44px, 44px 44px, 176px 176px, auto, auto, auto, auto;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: "Segoe UI", "Noto Sans JP", system-ui, sans-serif;
  line-height: 1.7;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.04) 0,
    rgba(255, 255, 255, 0.04) 1px,
    transparent 1px,
    transparent 5px
  );
  mix-blend-mode: soft-light;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(transparent 8%, rgba(0, 246, 255, 0.08) 8.2%, transparent 8.8%),
    linear-gradient(92deg, transparent 0 10%, rgba(255, 43, 214, 0.09) 10.2% 10.6%, transparent 10.8% 100%);
  opacity: 0.5;
}

a {
  color: var(--cyan);
  text-decoration-color: rgba(0, 246, 255, 0.45);
  text-underline-offset: 4px;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0 42px;
}

.hero {
  position: relative;
  padding: 42px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
  background:
    linear-gradient(135deg, rgba(8, 8, 18, 0.94), rgba(24, 20, 48, 0.88)),
    repeating-linear-gradient(90deg, transparent 0 26px, rgba(0, 246, 255, 0.08) 26px 27px);
  box-shadow: var(--shadow);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 28px 100%, 0 calc(100% - 28px));
}

.hero::before,
.metric::before,
details::before,
.takeaway::before {
  content: "";
  position: absolute;
  width: 92px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--pink));
  box-shadow: 0 0 16px var(--cyan), 0 0 18px var(--pink);
}

.hero::before {
  left: 24px;
  top: 18px;
}

.hero::after {
  content: "CHATGPT // CODEX";
  position: absolute;
  right: -18px;
  bottom: 8px;
  color: rgba(255, 255, 255, 0.05);
  font-size: clamp(40px, 9vw, 116px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1;
}

.kicker,
.metric-label,
.date {
  color: var(--green);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.88rem;
  text-transform: uppercase;
  text-shadow: 0 0 12px rgba(124, 255, 178, 0.78);
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 820px;
  margin-bottom: 18px;
  text-shadow: 2px 0 var(--pink), -2px 0 var(--cyan), 0 0 26px rgba(0, 246, 255, 0.38);
  font-size: clamp(2.4rem, 7vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.lead {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin-bottom: 0;
  color: #d7e6f4;
  font-size: clamp(1rem, 2vw, 1.16rem);
}

.scanline-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 18px 0;
}

.metric {
  position: relative;
  min-height: 136px;
  padding: 20px;
  border: 1px solid rgba(255, 43, 214, 0.34);
  border-bottom: 3px solid rgba(0, 246, 255, 0.5);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(17, 19, 38, 0.92), rgba(10, 16, 34, 0.92)),
    repeating-linear-gradient(135deg, transparent 0 18px, rgba(255, 43, 214, 0.05) 18px 20px);
  box-shadow: 0 0 24px rgba(255, 43, 214, 0.12), inset 0 0 22px rgba(0, 246, 255, 0.04);
}

.metric::before {
  right: -18px;
  top: 16px;
  transform: rotate(45deg);
}

.metric strong {
  display: block;
  margin-top: 10px;
  font-size: 1.05rem;
  line-height: 1.5;
}

.accordion {
  display: grid;
  gap: 12px;
}

details {
  position: relative;
  border: 1px solid var(--line);
  border-left: 4px solid rgba(255, 43, 214, 0.72);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(17, 19, 38, 0.96), rgba(9, 13, 30, 0.96)),
    linear-gradient(90deg, rgba(0, 246, 255, 0.06), transparent 42%);
  box-shadow: var(--shadow);
}

details::before {
  left: -10px;
  bottom: 0;
}

details[open] {
  border-color: rgba(0, 246, 255, 0.72);
  border-left-color: var(--cyan);
  box-shadow: 0 0 32px rgba(0, 246, 255, 0.24), 0 0 58px rgba(255, 43, 214, 0.15);
}

summary {
  display: grid;
  grid-template-columns: 120px 1fr 28px;
  gap: 18px;
  align-items: center;
  min-height: 76px;
  padding: 20px 24px;
  cursor: pointer;
  list-style: none;
  background:
    linear-gradient(90deg, rgba(0, 246, 255, 0.08), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent);
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  color: var(--bg);
  background: var(--cyan);
  font-weight: 900;
  box-shadow: 0 0 18px rgba(0, 246, 255, 0.75);
}

details[open] summary::after {
  content: "-";
  background: var(--pink);
  box-shadow: 0 0 18px rgba(255, 43, 214, 0.75);
}

summary:hover,
summary:focus-visible {
  background: linear-gradient(90deg, rgba(0, 246, 255, 0.08), rgba(255, 43, 214, 0.1));
  outline: none;
}

.title {
  color: var(--text);
  font-size: clamp(1.05rem, 2.3vw, 1.42rem);
  font-weight: 800;
}

.content {
  padding: 0 24px 24px 162px;
  color: var(--muted);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.36);
}

.content p {
  margin-bottom: 14px;
  padding: 14px 16px;
  border-left: 1px solid rgba(0, 246, 255, 0.28);
  background: rgba(4, 8, 20, 0.42);
}

.content p:last-child {
  margin-bottom: 0;
}

.takeaway {
  position: relative;
  margin-top: 18px;
  padding: 28px;
  border-left: 5px solid var(--yellow);
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255, 230, 109, 0.12), transparent 44%),
    var(--panel-strong);
  box-shadow: 0 0 28px rgba(255, 230, 109, 0.12);
}

.takeaway::before {
  right: 18px;
  top: 18px;
  background: linear-gradient(90deg, var(--yellow), var(--pink));
  box-shadow: 0 0 16px var(--yellow), 0 0 18px var(--pink);
}

.takeaway h2 {
  margin-bottom: 10px;
  color: var(--yellow);
  font-size: 1.3rem;
}

.takeaway p {
  margin-bottom: 0;
  color: #dce8f4;
}

footer {
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.92rem;
}

footer p {
  margin-bottom: 0;
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 20px, 1080px);
    padding-top: 24px;
  }

  .hero {
    padding: 28px 22px;
  }

  .scanline-panel {
    grid-template-columns: 1fr;
  }

  .metric {
    min-height: auto;
  }

  summary {
    grid-template-columns: 1fr 28px;
    gap: 10px;
    padding: 18px;
  }

  .date {
    grid-column: 1 / -1;
  }

  .content {
    padding: 0 18px 20px;
  }
}