/* SYPI — https://sypi.matsunai.com */
:root {
  --bg: #0c0f14;
  --bg-elev: #141923;
  --bg-elev-2: #1b2130;
  --border: #262e3d;
  --border-strong: #37425a;
  --fg: #e8ecf3;
  --fg-muted: #9aa5b8;
  --fg-dim: #6b7688;
  --accent: #4da3ff;
  --accent-fg: #06121f;
  --danger: #ff6b6b;
  --danger-bg: #2a1518;
  --warn: #ffb454;
  --warn-bg: #2a2015;
  --ok: #5ddba4;
  --ok-bg: #13251e;
  --radius: 10px;
  --radius-lg: 16px;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans",
          "Noto Sans JP", "Yu Gothic UI", Meiryo, system-ui, sans-serif;
  --maxw: 1080px;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f7f8fa;
    --bg-elev: #ffffff;
    --bg-elev-2: #f0f2f6;
    --border: #e1e5ec;
    --border-strong: #c7cedb;
    --fg: #141923;
    --fg-muted: #5a6478;
    --fg-dim: #8a93a5;
    --accent: #0b63ce;
    --accent-fg: #ffffff;
    --danger: #c92a2a;
    --danger-bg: #fdf0f0;
    --warn: #96600a;
    --warn-bg: #fdf6e8;
    --ok: #0f7a56;
    --ok-bg: #edf8f3;
  }
}
:root[data-theme="light"] {
  --bg: #f7f8fa; --bg-elev: #ffffff; --bg-elev-2: #f0f2f6;
  --border: #e1e5ec; --border-strong: #c7cedb;
  --fg: #141923; --fg-muted: #5a6478; --fg-dim: #8a93a5;
  --accent: #0b63ce; --accent-fg: #ffffff;
  --danger: #c92a2a; --danger-bg: #fdf0f0;
  --warn: #96600a; --warn-bg: #fdf6e8;
  --ok: #0f7a56; --ok-bg: #edf8f3;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  font-feature-settings: "palt" 1;
  overflow-wrap: anywhere;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.35; letter-spacing: .01em; margin: 0 0 .6em; font-weight: 700; }
p { margin: 0 0 1em; }
code, .mono { font-family: var(--mono); font-size: .9em; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 16px; }
.narrow { max-width: 760px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .14em; font-size: 18px; color: var(--fg); }
.brand:hover { text-decoration: none; }
.brand .logo { width: 26px; height: 26px; flex: none; }
.nav { margin-left: auto; display: flex; gap: 18px; align-items: center; font-size: 14px; }
.nav a { color: var(--fg-muted); }
.nav a:hover, .nav a[aria-current="page"] { color: var(--fg); }

/* ---------- hero ---------- */
.hero { padding: 72px 0 56px; border-bottom: 1px solid var(--border); }
.hero .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--warn); background: var(--warn-bg);
  border: 1px solid color-mix(in srgb, var(--warn) 35%, transparent);
  padding: 5px 12px; border-radius: 999px; margin-bottom: 22px;
}
.hero h1 { font-size: clamp(30px, 5.4vw, 50px); letter-spacing: -.01em; margin-bottom: .45em; }
.hero h1 .sub { display: block; font-size: .42em; letter-spacing: .22em; color: var(--fg-dim); font-weight: 600; margin-bottom: .7em; }
.hero .lead { font-size: clamp(16px, 2.1vw, 19px); color: var(--fg-muted); max-width: 46em; }
.hero .lead strong { color: var(--fg); font-weight: 700; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: var(--radius);
  font-weight: 700; font-size: 15px; border: 1px solid transparent; cursor: pointer;
}
.btn-primary { background: var(--accent); color: var(--accent-fg); }
.btn-primary:hover { text-decoration: none; filter: brightness(1.08); }
.btn-ghost { border-color: var(--border-strong); color: var(--fg); background: transparent; }
.btn-ghost:hover { text-decoration: none; background: var(--bg-elev); }

/* ---------- stats ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; margin: 40px 0; }
.stat { background: var(--bg-elev); padding: 22px 20px; }
.stat .v { font-size: clamp(24px, 3.4vw, 32px); font-weight: 800; letter-spacing: -.02em; line-height: 1.2; font-variant-numeric: tabular-nums; }
.stat .k { font-size: 12.5px; color: var(--fg-muted); margin-top: 4px; }
.stat .n { font-size: 11.5px; color: var(--fg-dim); margin-top: 6px; }

/* ---------- sections ---------- */
section { padding: 56px 0; border-bottom: 1px solid var(--border); }
section > .wrap > h2 { font-size: clamp(21px, 3vw, 27px); }
section > .wrap > h2 + .sec-lead { color: var(--fg-muted); margin-top: -.3em; }

.steps { counter-reset: s; display: grid; gap: 16px; margin: 28px 0 0; padding: 0; list-style: none; }
.steps li {
  counter-increment: s; position: relative;
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 22px 18px 64px;
}
.steps li::before {
  content: counter(s); position: absolute; left: 20px; top: 18px;
  width: 28px; height: 28px; border-radius: 999px;
  background: var(--bg-elev-2); border: 1px solid var(--border-strong);
  display: grid; place-items: center; font-weight: 800; font-size: 14px; color: var(--accent);
}
.steps li b { display: block; margin-bottom: 2px; }
.steps li span { color: var(--fg-muted); font-size: 14.5px; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 16px; margin-top: 28px; }
.card { background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.card h3 { font-size: 16px; margin-bottom: .4em; }
.card p { font-size: 14.5px; color: var(--fg-muted); margin: 0; }
.card .ico { font-size: 22px; line-height: 1; margin-bottom: 12px; display: block; }

.note {
  border: 1px solid color-mix(in srgb, var(--warn) 30%, var(--border));
  background: var(--warn-bg); border-radius: var(--radius);
  padding: 18px 22px; font-size: 14.5px; color: var(--fg);
}
.note h3 { font-size: 15px; color: var(--warn); margin-bottom: .5em; }
.note p:last-child { margin-bottom: 0; }
.note ul { margin: .5em 0 0; padding-left: 1.3em; color: var(--fg-muted); }

/* ---------- table / list ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 24px 0 18px; }
.toolbar input[type="search"], .toolbar select {
  background: var(--bg-elev); color: var(--fg);
  border: 1px solid var(--border-strong); border-radius: var(--radius);
  padding: 10px 14px; font: inherit; font-size: 14.5px;
}
.toolbar input[type="search"] { flex: 1 1 260px; min-width: 0; }
.toolbar .count { margin-left: auto; font-size: 13.5px; color: var(--fg-muted); font-variant-numeric: tabular-nums; }

.entries { display: grid; gap: 12px; }
.entry {
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px;
}
.entry-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 10px; }
.entry-head .svc { font-weight: 700; font-size: 16.5px; }
.entry-head .co { color: var(--fg-muted); font-size: 13.5px; }
.entry-head .date { margin-left: auto; font-size: 13px; color: var(--fg-dim); font-variant-numeric: tabular-nums; }
.entry-rec { font-size: 15px; margin-top: 6px; font-variant-numeric: tabular-nums; }
.entry-rec b { font-size: 18px; letter-spacing: -.01em; }
.badges { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.badge {
  font-size: 11.5px; font-weight: 700; letter-spacing: .02em;
  padding: 3px 9px; border-radius: 999px;
  border: 1px solid var(--border-strong); color: var(--fg-muted); background: var(--bg-elev-2);
  white-space: nowrap;
}
.badge.cat { font-weight: 600; }
.badge.s-confirmed { color: var(--danger); background: var(--danger-bg); border-color: color-mix(in srgb, var(--danger) 38%, transparent); }
.badge.s-possible { color: var(--warn); background: var(--warn-bg); border-color: color-mix(in srgb, var(--warn) 38%, transparent); }
.badge.s-investigating { color: var(--fg-muted); }
.badge.sev-3 { color: var(--danger); background: var(--danger-bg); border-color: color-mix(in srgb, var(--danger) 38%, transparent); }
.badge.sev-2 { color: var(--warn); background: var(--warn-bg); border-color: color-mix(in srgb, var(--warn) 38%, transparent); }
.badge.sev-1 { color: var(--ok); background: var(--ok-bg); border-color: color-mix(in srgb, var(--ok) 38%, transparent); }
.entry-scope { font-size: 13.5px; color: var(--fg-muted); margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border); }
.entry-src { font-size: 12.5px; margin-top: 8px; color: var(--fg-dim); }
.entry-src a { color: var(--fg-muted); }

.empty { text-align: center; color: var(--fg-dim); padding: 60px 20px; }

/* ---------- footer ---------- */
footer { padding: 44px 0 72px; color: var(--fg-dim); font-size: 13.5px; }
footer .wrap > div + div { margin-top: 10px; }
footer a { color: var(--fg-muted); }

.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.theme-toggle { background: none; border: 1px solid var(--border-strong); color: var(--fg-muted); border-radius: var(--radius); padding: 5px 10px; font: inherit; font-size: 12px; cursor: pointer; }
.theme-toggle:hover { color: var(--fg); }

@media (max-width: 600px) {
  .hero { padding: 48px 0 40px; }
  section { padding: 40px 0; }
  .entry-head .date { margin-left: 0; width: 100%; }
  .nav { gap: 12px; font-size: 13px; }
  .brand { font-size: 16px; }
}