:root {
  --bg: #050b18;
  --bg-2: #0a1428;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --border: rgba(148, 178, 255, 0.14);
  --text: #e8eefc;
  --muted: #8b9bbd;
  --accent: #0a8ff0;
  --accent-2: #33d1ff;
  --ok: #2ee59d;
  --ok-soft: rgba(46, 229, 157, 0.12);
  --ng: #ff5470;
  --ng-soft: rgba(255, 84, 112, 0.12);
  --warn: #ffc24b;
  --warn-soft: rgba(255, 194, 75, 0.12);
  --font: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  --mono: "SF Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 背景 ---------- */
.bg-grid {
  position: fixed; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(120, 160, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 160, 255, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
}
.bg-glow {
  position: fixed; left: 50%; top: -320px; width: 1100px; height: 700px; transform: translateX(-50%);
  pointer-events: none;
  background: radial-gradient(closest-side, rgba(10, 143, 240, 0.35), rgba(51, 209, 255, 0.08) 60%, transparent);
  filter: blur(20px);
}

main { position: relative; max-width: 960px; margin: 0 auto; padding: 36px 16px 80px; }

/* ---------- ロゴ ---------- */
.brand { display: flex; justify-content: center; margin-bottom: 48px; }
.brand .logo {
  height: 76px; width: auto; display: block; padding: 14px 26px; border-radius: 16px;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(255,255,255,.6), 0 10px 40px rgba(10, 143, 240, .35), 0 0 80px rgba(51, 209, 255, .15);
}
.logo-text { font-weight: 700; font-size: 1.25rem; letter-spacing: .02em; }

/* ---------- ヒーロー ---------- */
.hero { text-align: center; }
.eyebrow {
  display: inline-block; margin: 0 0 14px; padding: 4px 14px; border-radius: 999px;
  font-size: .75rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent-2); background: rgba(51, 209, 255, 0.08); border: 1px solid rgba(51, 209, 255, 0.25);
}
h1 {
  margin: 0 0 12px; font-size: clamp(2rem, 6vw, 3.2rem); font-weight: 800; letter-spacing: -.01em; line-height: 1.2;
  background: linear-gradient(180deg, #ffffff 30%, #9fb6e6);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { margin: 0 auto 22px; max-width: 560px; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.chip {
  font-family: var(--mono); font-size: .8rem; padding: 4px 12px; border-radius: 8px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
}
.chip b { color: var(--accent-2); font-weight: 600; margin-right: 6px; }

/* ---------- 実行ボタン ---------- */
.launch { display: flex; justify-content: center; margin: 44px 0 52px; }
.run {
  position: relative; width: 188px; height: 188px; border-radius: 50%; border: 0; padding: 0; cursor: pointer;
  background: radial-gradient(circle at 50% 35%, #1aa3ff, #0a6fd0 60%, #08408a);
  box-shadow: 0 0 0 10px rgba(10, 143, 240, 0.08), 0 0 60px rgba(10, 143, 240, 0.55), inset 0 2px 0 rgba(255,255,255,.25);
  color: #fff; font-family: inherit;
  transition: transform .2s ease, box-shadow .2s ease;
}
.run:hover:not(:disabled) { transform: translateY(-2px) scale(1.02); box-shadow: 0 0 0 14px rgba(10, 143, 240, 0.1), 0 0 90px rgba(10, 143, 240, 0.75), inset 0 2px 0 rgba(255,255,255,.3); }
.run:active:not(:disabled) { transform: scale(.98); }
.run:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 6px; }
.run::before {
  content: ""; position: absolute; inset: -18px; border-radius: 50%;
  border: 1px solid rgba(51, 209, 255, 0.35); animation: pulse 2.4s ease-out infinite;
}
.run:disabled { cursor: progress; background: radial-gradient(circle at 50% 35%, #12264a, #0b1a36 70%); box-shadow: 0 0 40px rgba(10, 143, 240, 0.25); }
.run:disabled::before { animation: none; opacity: 0; }
@keyframes pulse { 0% { transform: scale(.92); opacity: .9; } 100% { transform: scale(1.18); opacity: 0; } }
.run-inner { position: relative; display: flex; flex-direction: column; align-items: center; gap: 2px; }
.run-label { font-size: 1.3rem; font-weight: 700; }
.run-sub { font-family: var(--mono); font-size: .72rem; letter-spacing: .2em; opacity: .75; }
.ring { position: absolute; inset: 0; width: 100%; height: 100%; transform: rotate(-90deg); opacity: 0; transition: opacity .2s; }
.run:disabled .ring { opacity: 1; }
.ring circle { fill: none; stroke-width: 4; }
.ring-track { stroke: rgba(255,255,255,.08); }
.ring-bar { stroke: var(--accent-2); stroke-linecap: round; stroke-dasharray: 339.3; stroke-dashoffset: 339.3; transition: stroke-dashoffset .3s ease; filter: drop-shadow(0 0 6px var(--accent-2)); }

/* ---------- 結果 ---------- */
.results { animation: rise .5s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
.stat {
  display: flex; flex-direction: column; align-items: center; padding: 18px 8px; border-radius: 16px;
  background: var(--surface); border: 1px solid var(--border); backdrop-filter: blur(8px);
}
.stat-num { font-family: var(--mono); font-size: 2.2rem; font-weight: 700; line-height: 1.1; }
.stat-label { font-size: .8rem; color: var(--muted); letter-spacing: .08em; }
.stat.ok .stat-num { color: var(--ok); text-shadow: 0 0 24px rgba(46, 229, 157, .45); }
.stat.ng .stat-num { color: var(--ng); text-shadow: 0 0 24px rgba(255, 84, 112, .45); }

.panel {
  padding: 18px; border-radius: 18px; margin-bottom: 16px;
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--border); backdrop-filter: blur(8px);
}
.panel-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.proto { font-family: var(--mono); font-weight: 700; font-size: .8rem; padding: 3px 10px; border-radius: 6px; letter-spacing: .08em; }
.proto.tcp { color: #7cc4ff; background: rgba(10, 143, 240, .15); }
.proto.udp { color: #c4a6ff; background: rgba(150, 110, 255, .15); }
.panel-title { color: var(--muted); font-size: .85rem; }

.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.tile {
  position: relative; padding: 12px 14px; border-radius: 12px;
  background: rgba(5, 11, 24, .55); border: 1px solid var(--border);
  transition: border-color .3s, background .3s;
}
.tile-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.tile-port { font-family: var(--mono); font-size: 1.15rem; font-weight: 700; }
.tile-state { font-size: .75rem; font-weight: 700; display: inline-flex; align-items: center; gap: 6px; color: var(--muted); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); }
.tile-detail { margin-top: 4px; font-size: .72rem; color: var(--muted); line-height: 1.4; min-height: 1em; }
.tile.pending .dot { animation: blink 1s ease-in-out infinite; background: var(--accent-2); }
@keyframes blink { 50% { opacity: .2; } }
.tile.ok { border-color: rgba(46, 229, 157, .4); background: var(--ok-soft); }
.tile.ok .tile-state { color: var(--ok); }
.tile.ok .dot { background: var(--ok); box-shadow: 0 0 10px var(--ok); }
.tile.ng { border-color: rgba(255, 84, 112, .45); background: var(--ng-soft); }
.tile.ng .tile-state { color: var(--ng); }
.tile.ng .dot { background: var(--ng); box-shadow: 0 0 10px var(--ng); }
.tile.warn { border-color: rgba(255, 194, 75, .45); background: var(--warn-soft); }
.tile.warn .tile-state { color: var(--warn); }
.tile.warn .dot { background: var(--warn); }

.meta {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 20px 0;
}
.meta div { padding: 12px 16px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); }
.meta dt { font-size: .72rem; color: var(--muted); letter-spacing: .06em; }
.meta dd { margin: 2px 0 0; font-family: var(--mono); font-size: .9rem; word-break: break-all; }

.actions { display: flex; justify-content: center; margin: 28px 0 16px; }
.btn-pdf {
  display: inline-flex; align-items: center; gap: 10px; padding: 14px 30px; border-radius: 12px; cursor: pointer;
  font: inherit; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--accent), #6b5cff);
  border: 0; box-shadow: 0 10px 30px rgba(10, 143, 240, .35);
  transition: transform .15s, box-shadow .15s;
}
.btn-pdf:hover { transform: translateY(-1px); box-shadow: 0 14px 36px rgba(10, 143, 240, .5); }
.btn-pdf:disabled { opacity: .6; cursor: progress; }
.btn-pdf svg { width: 18px; height: 18px; }
.note { text-align: center; font-size: .75rem; color: var(--muted); margin: 0; }

@media (max-width: 560px) {
  .brand { margin-bottom: 32px; }
  .brand .logo { height: 60px; padding: 10px 18px; }
  .run { width: 156px; height: 156px; }
  .stat-num { font-size: 1.7rem; }
  .tiles { grid-template-columns: repeat(2, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before { animation: none !important; transition: none !important; }
}