/* ============================================================
   My Notes — 共通スタイル
   既存の SSH 認証ページのデザイントークンをそのまま踏襲
   ============================================================ */

:root{
  --paper:#EAEEF5;
  --card:#FFFFFF;
  --ink:#16202E;
  --ink-soft:#4E5B70;
  --line:#D3DCEA;
  --client:#0C857F;
  --client-bg:#DFF0EE;
  --server:#5946C6;
  --server-bg:#EAE7FA;
  --danger:#C4432E;
  --danger-bg:#F9E7E1;
  --shadow:0 1px 0 rgba(22,32,46,.04),0 12px 30px -18px rgba(22,32,46,.35);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

body{
  font-family:"IBM Plex Sans JP",system-ui,sans-serif;
  background:var(--paper);
  color:var(--ink);
  line-height:1.85;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:820px;margin:0 auto;padding:0 22px}
a{color:var(--client)}
:focus-visible{outline:3px solid var(--server);outline-offset:3px;border-radius:4px}

/* ---------- HERO ---------- */
header.hero{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(0deg,rgba(234,238,245,1) 0%,rgba(234,238,245,0) 40%),
    repeating-linear-gradient(0deg,transparent,transparent 31px,rgba(89,70,198,.06) 32px),
    repeating-linear-gradient(90deg,transparent,transparent 31px,rgba(12,133,127,.06) 32px),
    var(--paper);
  border-bottom:1px solid var(--line);
  padding:58px 0 56px;
}
.crumb{
  font-family:"IBM Plex Mono",monospace;font-size:.76rem;letter-spacing:.12em;
  text-transform:uppercase;margin-bottom:26px;display:inline-block;
  color:var(--ink-soft);text-decoration:none;
}
.crumb:hover{color:var(--client)}
.eyebrow{
  font-family:"IBM Plex Mono",monospace;
  font-size:.74rem;letter-spacing:.28em;text-transform:uppercase;
  color:var(--ink-soft);margin-bottom:22px;
}
.eyebrow b{color:var(--client);font-weight:600}
.eyebrow i{color:var(--danger);font-style:normal;font-weight:600}
.eyebrow s{color:var(--server);text-decoration:none;font-weight:600}
h1{
  font-family:"Space Grotesk","IBM Plex Sans JP",sans-serif;
  font-weight:700;line-height:1.18;letter-spacing:-.01em;
  font-size:clamp(2rem,5.4vw,3.15rem);margin-bottom:20px;
}
h1 .keyword{background:linear-gradient(transparent 62%,var(--client-bg) 62%);padding:0 .05em}
h1 .keyword-d{background:linear-gradient(transparent 62%,var(--danger-bg) 62%);padding:0 .05em}
.lede{font-size:1.09rem;color:var(--ink-soft);max-width:60ch}
.lede strong{color:var(--ink);font-weight:700}

/* ---------- SECTION ---------- */
section{padding:56px 0}
section + section{border-top:1px solid var(--line)}
.sec-tag{
  font-family:"IBM Plex Mono",monospace;
  font-size:.76rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--ink-soft);display:flex;align-items:center;gap:12px;margin-bottom:16px;
}
.sec-tag .num{
  font-family:"Space Grotesk",monospace;font-weight:700;
  color:var(--ink);font-size:.95rem;letter-spacing:0;
  border:1.5px solid var(--ink);border-radius:999px;
  width:30px;height:30px;display:grid;place-items:center;flex:none;
}
h2{
  font-family:"Space Grotesk","IBM Plex Sans JP",sans-serif;
  font-weight:700;font-size:clamp(1.5rem,3.4vw,2.05rem);
  letter-spacing:-.01em;line-height:1.28;margin-bottom:14px;
}
h3{
  font-family:"IBM Plex Sans JP",sans-serif;font-weight:700;
  font-size:1.1rem;margin:30px 0 10px;
}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
strong{font-weight:700}
.soft{color:var(--ink-soft)}
ul,ol{margin:0 0 20px 1.3em}
li{margin-bottom:9px}
li:last-child{margin-bottom:0}
hr{border:0;border-top:1px solid var(--line);margin:34px 0}

/* ---------- CODE ---------- */
code{
  font-family:"IBM Plex Mono",monospace;font-size:.86em;
  background:#eef1f6;border:1px solid var(--line);border-radius:5px;
  padding:.08em .4em;
}
code.c{background:var(--client-bg);border-color:#bfe0dc;color:#075e59}
code.s{background:var(--server-bg);border-color:#cec7f2;color:#3f2ea3}
code.d{background:var(--danger-bg);border-color:#f0cabd;color:#9c3320}
pre{
  background:#1B2330;color:#E4EAF3;border-radius:12px;
  padding:16px 18px;overflow-x:auto;margin:0 0 22px;
  font-family:"IBM Plex Mono",monospace;font-size:.85rem;line-height:1.72;
}
pre code{background:none;border:0;padding:0;font-size:inherit;color:inherit}
pre .cm{color:#8C9BB0}
pre .hl{color:#6FD3CB}
pre .at{color:#F0A08C}

/* ---------- TABLE ---------- */
.tbl{overflow-x:auto;margin:0 0 24px}
table{
  width:100%;border-collapse:collapse;font-size:.94rem;
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  overflow:hidden;
}
th{
  background:#E1E7F1;text-align:left;padding:11px 14px;
  font-family:"IBM Plex Mono",monospace;font-size:.74rem;
  letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);font-weight:600;
}
td{padding:12px 14px;border-top:1px solid var(--line);vertical-align:top;line-height:1.7}
.ok{color:var(--client);font-weight:700}
.ng{color:var(--danger);font-weight:700}

/* ---------- CALLOUT / ADMONITION ---------- */
.callout{
  background:var(--card);border:1px solid var(--line);border-left:5px solid var(--server);
  border-radius:0 12px 12px 0;padding:16px 18px;box-shadow:var(--shadow);margin:0 0 30px;
}
.callout .lbl{
  display:block;font-family:"IBM Plex Mono",monospace;font-size:.72rem;
  letter-spacing:.16em;text-transform:uppercase;color:var(--server);
  font-weight:600;margin-bottom:6px;
}
.adm{
  border-radius:12px;padding:14px 16px;margin:0 0 22px;
  font-size:.95rem;border:1px solid var(--line);
}
.adm .lbl{
  display:block;font-family:"IBM Plex Mono",monospace;font-size:.72rem;
  letter-spacing:.16em;text-transform:uppercase;font-weight:600;margin-bottom:5px;
}
.adm.note{background:var(--server-bg);border-color:#cec7f2}
.adm.note .lbl{color:#3f2ea3}
.adm.tip{background:var(--client-bg);border-color:#bfe0dc}
.adm.tip .lbl{color:#075e59}
.adm.warn{background:var(--danger-bg);border-color:#f0cabd}
.adm.warn .lbl{color:#9c3320}

/* ---------- CARDS (index pages) ---------- */
.cards{display:grid;gap:14px;margin-top:8px}
.cards.two{grid-template-columns:1fr}
@media(min-width:680px){.cards.two{grid-template-columns:repeat(2,1fr)}}
.card{
  display:block;text-decoration:none;color:inherit;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:20px 18px;box-shadow:var(--shadow);position:relative;
  transition:transform .2s ease,box-shadow .2s ease;
}
a.card:hover{transform:translateY(-3px);box-shadow:0 1px 0 rgba(22,32,46,.04),0 20px 36px -20px rgba(22,32,46,.5)}
@media (prefers-reduced-motion:reduce){a.card:hover{transform:none}}
.card .n{
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.15em;
  color:var(--ink-soft);text-transform:uppercase;
}
.card h3{font-size:1.1rem;margin:6px 0 8px}
.card p{font-size:.92rem;color:var(--ink-soft);margin:0}
.card.basic{border-top:4px solid var(--client)}
.card.red{border-top:4px solid var(--danger)}
.card.lead{border-left:5px solid var(--danger);border-top:1px solid var(--line)}
.card.lead.t{border-left-color:var(--client)}
.card.soon{opacity:.7;box-shadow:none;border-left-color:var(--line)}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.tags span{
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;font-weight:500;
  padding:.15em .6em;border-radius:999px;
  background:var(--danger-bg);color:#9c3320;
}
.tags span.t{background:var(--client-bg);color:#075e59}
.tags span.v{background:var(--server-bg);color:#3f2ea3}
.tags span.off{background:#eef1f6;color:var(--ink-soft)}
.who{
  display:inline-block;font-family:"IBM Plex Mono",monospace;font-size:.72rem;
  padding:.15em .6em;border-radius:999px;margin-top:12px;font-weight:500;
  background:var(--danger-bg);color:#9c3320;
}
.who.t{background:var(--client-bg);color:#075e59}
.who.off{background:#eef1f6;color:var(--ink-soft)}

/* ---------- NEXT NAV ---------- */
.nextnav{
  display:flex;gap:12px;flex-wrap:wrap;margin-top:8px;
}
.nextnav a{
  font-family:"IBM Plex Mono",monospace;font-size:.8rem;text-decoration:none;
  background:var(--card);border:1px solid var(--line);border-radius:999px;
  padding:.5em 1.1em;color:var(--ink-soft);transition:color .2s,border-color .2s;
}
.nextnav a:hover{color:var(--client);border-color:var(--client)}

footer{padding:40px 0 60px;color:var(--ink-soft);font-size:.85rem;text-align:center}

/* ---------- REVEAL ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}