@charset "UTF-8";
/* Aethel — one stylesheet. Cool paper, ink, ultramarine for decisions, amber for cover, teal for what settled. */

@font-face{font-family:"Bricolage Grotesque";font-style:normal;font-weight:300 800;font-display:swap;src:url(fonts/bricolage.woff2) format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:400 700;font-display:swap;src:url(fonts/inter.woff2) format("woff2")}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:400 700;font-display:swap;src:url(fonts/jetbrains-mono.woff2) format("woff2")}

:root{
  --bg:#f7f8fa;--bg-2:#eef1f5;--bg-3:#e4e9f0;--card:#ffffff;
  --ink:#0f1722;--ink-2:#3b4959;--ink-3:#6b7a8c;--line:#d8dfe7;--line-2:#c4cdd8;
  --blue:#2743c9;--blue-2:#1d33a0;--blue-soft:rgba(39,67,201,.08);
  --amber:#b0611a;--amber-soft:rgba(176,97,26,.10);
  --teal:#0c8c73;--teal-soft:rgba(12,140,115,.10);
  --red:#c0392b;--red-soft:rgba(192,57,43,.08);
  --night:#0e1622;--night-2:#141e2c;--night-line:#26344a;--night-fg:#e8eef4;--night-fg-2:#aab7c5;--night-blue:#9bb0ff;--night-amber:#f2b880;--night-teal:#5ee0c1;--night-red:#ff8a80;
  --disp:"Bricolage Grotesque","Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Noto Sans JP",sans-serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue","Hiragino Sans","Noto Sans JP",Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --max:1240px;--r:12px;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:5rem;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-optical-sizing:auto}
a{color:inherit;text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--blue);outline-offset:4px;border-radius:3px}
p{margin:0 0 1rem}
h1,h2,h3,h4{margin:0;font-family:var(--disp);font-weight:600;letter-spacing:-.02em;line-height:1.08;text-wrap:balance}
h1{font-size:clamp(2.5rem,5.6vw,5rem);font-weight:700;letter-spacing:-.035em;line-height:1}
h2{font-size:clamp(1.9rem,3.6vw,3rem);letter-spacing:-.03em}
h3{font-size:1.3rem;line-height:1.3}
h4{font-family:var(--sans);font-weight:600;font-size:1rem;letter-spacing:0}
html[lang=ja] h1,html[lang=ja] h2,html[lang=ja] h3{font-family:"Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP",var(--disp);font-weight:700;letter-spacing:-.01em}
html[lang=ja] h1{font-size:clamp(2rem,4.6vw,4rem);line-height:1.2}
html[lang=ja] h2{font-size:clamp(1.6rem,3vw,2.5rem);line-height:1.3}
html[lang=ja] h3{font-size:1.2rem;line-height:1.5}
html[lang=ja] body,html[lang=ja] p{line-height:1.9}
.mono,.eyebrow,.kicker,code{font-family:var(--mono)}
code{font-size:.85em;background:var(--bg-3);padding:.1em .4em;border-radius:4px}
.wrap{width:min(var(--max),calc(100% - 3rem));margin-inline:auto}
.skip{position:absolute;left:1rem;top:-5rem;z-index:20;padding:.6rem 1rem;background:var(--ink);color:var(--bg)}
.skip:focus{top:1rem}

/* wordmark ------------------------------------------------------------ */
.wm{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--disp);font-weight:700;letter-spacing:-.04em;line-height:1;font-variation-settings:"opsz" 96}
.wm svg{width:1.05em;height:1.05em;display:block}
.wm .b{fill:var(--blue)}.wm .k{fill:var(--ink)}
.night .wm .b{fill:var(--night-blue)}.night .wm .k{fill:var(--night-fg)}

/* header --------------------------------------------------------------- */
.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:2rem;height:4.25rem}
.top .wm{font-size:1.7rem}
.top nav{display:flex;gap:1.6rem;margin-left:auto;font-size:.9rem;color:var(--ink-2)}
.top nav a:hover{color:var(--ink)}
.lang{font-family:var(--mono);font-size:.78rem;padding:.4rem .7rem;border:1px solid var(--line-2);border-radius:999px;color:var(--ink-2)}
.lang:hover{border-color:var(--ink);color:var(--ink)}

/* hero ----------------------------------------------------------------- */
.hero{border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
.hero .wrap{padding:5rem 0 4rem}
.eyebrow{font-size:.74rem;letter-spacing:.14em;text-transform:uppercase;color:var(--blue);margin:0 0 1.6rem}
.eyebrow .by{color:var(--ink-3);text-transform:none}
.hero-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,4fr);gap:3rem;align-items:end}
.lede{font-size:clamp(1.05rem,1.4vw,1.2rem);color:var(--ink-2);max-width:34em;margin-top:1.6rem}
.actions{display:flex;flex-wrap:wrap;gap:.8rem 1rem;margin-top:2rem}
.btn{display:inline-flex;align-items:center;gap:.6rem;padding:.85rem 1.25rem;border:1px solid var(--ink);border-radius:8px;font-weight:500;font-size:.95rem;line-height:1;transition:background .2s,color .2s,border-color .2s}
.btn:hover{background:var(--ink);color:var(--bg)}
.btn.primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn.primary:hover{background:var(--blue-2);border-color:var(--blue-2)}
.btn .arr{font-family:var(--mono);font-size:.9em}
.night .btn{border-color:var(--night-fg-2);color:var(--night-fg)}
.night .btn:hover{background:var(--night-fg);color:var(--night)}
.hero-note{display:flex;flex-wrap:wrap;gap:.4rem 1.4rem;margin-top:2.6rem;padding-top:1.1rem;border-top:1px solid var(--line);font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;color:var(--ink-3);text-transform:uppercase}
.hero-note span::before{content:"·";margin-right:1.4rem;color:var(--line-2)}
.hero-note span:first-child::before{content:none;margin:0}
.hero-side{font-size:.95rem;color:var(--ink-2);border-left:2px solid var(--blue);padding-left:1.2rem;max-width:26em}
.hero-side b{display:block;font-family:var(--disp);font-weight:600;font-size:1.05rem;color:var(--ink);margin-bottom:.4rem}

/* the big diagram ------------------------------------------------------ */
.diagram{margin-top:3.5rem;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:1.6rem 1.6rem 1.2rem;box-shadow:0 1px 0 rgba(15,23,34,.03),0 24px 60px -30px rgba(15,23,34,.18)}
.diagram svg{width:100%;height:auto;display:block;font-family:var(--sans)}
.diagram .t-lbl{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;fill:var(--ink-3)}
.diagram .t-ttl{font-family:var(--disp);font-weight:600;font-size:17px;fill:var(--ink);letter-spacing:-.01em}
.diagram .t-id{font-family:var(--mono);font-size:11px;fill:var(--ink-2)}
.diagram .t-sm{font-size:11.5px;fill:var(--ink-2)}
.diagram .t-mute{font-size:11px;fill:var(--ink-3)}
.diagram .panel{fill:var(--bg);stroke:var(--line);stroke-width:1}
.diagram .card{fill:#fff;stroke:var(--line-2);stroke-width:1}
.diagram .bar{fill:var(--blue);opacity:.85}
.diagram .axis{stroke:var(--line-2);stroke-width:1}
.diagram .tick{font-family:var(--mono);font-size:9.5px;fill:var(--ink-3)}
.diagram .tag{fill:var(--blue-soft)}.diagram .tag-t{font-family:var(--mono);font-size:9.5px;fill:var(--blue);letter-spacing:.06em}
.diagram .att-blue{fill:var(--blue-soft);stroke:var(--blue);stroke-width:1}
.diagram .att-amber{fill:var(--amber-soft);stroke:var(--amber);stroke-width:1}
.diagram .att-teal{fill:var(--teal-soft);stroke:var(--teal);stroke-width:1}
.diagram .c-blue{fill:var(--blue)}.diagram .c-amber{fill:var(--amber)}.diagram .c-teal{fill:var(--teal)}.diagram .c-red{fill:var(--red)}
.diagram .arrow{fill:none;stroke:var(--ink-3);stroke-width:1.3}
.diagram .arrow-teal{fill:none;stroke:var(--teal);stroke-width:1.4}
.diagram .arrow-red{fill:none;stroke:var(--red);stroke-width:1.4;stroke-dasharray:3 3}
.diagram .sig{font-family:var(--mono);font-size:9.5px;fill:var(--ink-3)}
.diagram .seal{fill:none;stroke:var(--teal);stroke-width:1.4}
.diagram-cap{font-size:.82rem;color:var(--ink-3);margin:1rem 0 0;font-family:var(--mono);letter-spacing:.02em}
.diagram-list{display:none}

/* sections ------------------------------------------------------------- */
.section{padding:6rem 0}
.head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,3fr);gap:2rem;align-items:start;margin-bottom:3rem}
.head .eyebrow{margin:.4rem 0 0}
.head p{color:var(--ink-2);max-width:44em;font-size:1.08rem;margin:1.2rem 0 0}
.night{background:var(--night);color:var(--night-fg)}
.night .head p{color:var(--night-fg-2)}
.night .eyebrow{color:var(--night-blue)}
.bg-2{background:var(--bg-2)}

/* cards ---------------------------------------------------------------- */
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.2rem}
.cardx{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem 1.5rem 1.5rem;display:flex;flex-direction:column;gap:.7rem}
.cardx .kicker{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.cardx h3{font-size:1.25rem}
.cardx p{margin:0;color:var(--ink-2);font-size:.95rem}
.cardx .num{font-family:var(--mono);font-size:.8rem;color:var(--blue)}
.cardx.blue{border-top:3px solid var(--blue)}.cardx.amber{border-top:3px solid var(--amber)}.cardx.teal{border-top:3px solid var(--teal)}

/* lifecycle ------------------------------------------------------------ */
.stages{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:1px;background:var(--night-line);border:1px solid var(--night-line);border-radius:14px;overflow:hidden}
.stages li{background:var(--night);padding:1.5rem 1.3rem 1.6rem;display:flex;flex-direction:column;gap:.6rem;position:relative}
.stages .num{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;color:var(--night-blue)}
.stages h3{font-size:1.2rem;color:var(--night-fg)}
.stages p{margin:0;font-size:.88rem;color:var(--night-fg-2)}
.stages .ref{margin-top:auto;padding-top:1rem;border-top:1px dashed var(--night-line);font-size:.8rem;color:var(--night-fg-2)}
.stages .ref b{display:block;font-family:var(--mono);font-weight:500;font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--night-red);margin-bottom:.35rem}
.stages .ref span{display:block;padding-left:.9rem;text-indent:-.9rem}
.stages .ref span::before{content:"×";color:var(--night-red);margin-right:.4rem;font-family:var(--mono)}
.states{margin-top:1.6rem;display:flex;flex-wrap:wrap;gap:.5rem;font-family:var(--mono);font-size:.74rem}
.states span{padding:.35rem .6rem;border:1px solid var(--night-line);border-radius:6px;color:var(--night-fg-2)}
.states .lbl{border:0;padding-left:0;color:var(--night-fg-2);letter-spacing:.1em;text-transform:uppercase;font-size:.68rem;align-self:center}

/* providers ------------------------------------------------------------ */
.matrix-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--card)}
.matrix{border-collapse:collapse;width:100%;min-width:760px;font-size:.88rem}
.matrix th,.matrix td{padding:.85rem 1rem;border-bottom:1px solid var(--line);text-align:center;vertical-align:middle}
.matrix thead th{font-family:var(--mono);font-weight:500;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);background:var(--bg-2)}
.matrix th.row{text-align:left;font-weight:500;background:none}
.matrix th.row code{font-size:.78rem;background:var(--bg-2)}
.matrix th.row small{display:block;font-weight:400;color:var(--ink-3);font-size:.78rem;margin-top:.15rem}
.matrix tbody tr:last-child td,.matrix tbody tr:last-child th{border-bottom:0}
.dot{display:inline-block;width:.7rem;height:.7rem;border-radius:50%;background:var(--line)}
.dot.on{background:var(--blue);box-shadow:0 0 0 4px var(--blue-soft)}
.matrix-cap{font-size:.85rem;color:var(--ink-3);margin:1rem 0 0}
.chips{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.5rem}
.chip{font-family:var(--mono);font-size:.76rem;padding:.45rem .75rem;border:1px solid var(--line-2);border-radius:999px;color:var(--ink-2);background:var(--card)}
.chip b{font-weight:500;color:var(--blue)}

/* boundaries ----------------------------------------------------------- */
.sor{width:100%;min-width:760px;border-collapse:collapse;font-size:.92rem;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.sor-wrap{overflow-x:auto;border-radius:var(--r);border:1px solid var(--line)}
.sor th,.sor td{padding:.95rem 1.1rem;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.sor thead th{font-family:var(--mono);font-weight:500;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);background:var(--bg-2)}
.sor tbody tr:last-child td{border-bottom:0}
.sor td:nth-child(2){font-family:var(--mono);font-size:.82rem;color:var(--ink)}
.sor td:nth-child(2) b{font-weight:500;color:var(--blue)}
.sor td:nth-child(3){color:var(--ink-2)}
.sor .min{min-width:180px}.sor td:first-child{min-width:200px}
.conf{margin-top:3rem;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.2rem}

/* pilot ---------------------------------------------------------------- */
.pilot{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:1.2rem}
.pane{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem 1.5rem}
.pane h3{font-size:1.15rem;margin-bottom:1rem}
.pane ol,.pane ul{margin:0;padding:0;list-style:none}
.pane ol{counter-reset:p}
.pane ol li{counter-increment:p;display:grid;grid-template-columns:2rem 1fr;gap:.6rem;padding:.55rem 0;border-top:1px solid var(--line);font-size:.93rem;color:var(--ink-2)}
.pane ol li::before{content:counter(p,decimal-leading-zero);font-family:var(--mono);font-size:.78rem;color:var(--blue);padding-top:.15rem}
.pane ul li{display:grid;grid-template-columns:1.2rem 1fr;gap:.5rem;padding:.5rem 0;border-top:1px solid var(--line);font-size:.93rem;color:var(--ink-2)}
.pane ul li::before{content:"×";font-family:var(--mono);color:var(--red);padding-top:.05rem}
.pane.ok ul li::before{content:"✓";color:var(--teal)}
.pane ul li:first-child,.pane ol li:first-child{border-top:0}
.pilot-actions{margin-top:2rem}

/* status --------------------------------------------------------------- */
.limits{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:0 3rem}
.limits li{padding:1rem 0;border-top:1px solid var(--line);color:var(--ink-2);font-size:.95rem;display:grid;grid-template-columns:1.4rem 1fr;gap:.6rem}
.limits li::before{content:"—";font-family:var(--mono);color:var(--ink-3)}
.gates{margin-top:2rem;background:var(--night);color:var(--night-fg);border-radius:var(--r);padding:1.4rem 1.5rem;font-family:var(--mono);font-size:.82rem;line-height:1.8;overflow-x:auto}
.gates span{color:var(--night-fg-2)}

/* footer --------------------------------------------------------------- */
footer{border-top:1px solid var(--line);padding:3.5rem 0 2rem}
footer .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:2rem}
footer .wm{font-size:2rem}
footer .tag{color:var(--ink-3);margin:.8rem 0 0;font-size:.9rem}
footer .note{color:var(--ink-2);font-size:.92rem;max-width:34em;margin:0}
footer .note a{border-bottom:1px solid var(--line-2)}
footer .end{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:1.2rem 2rem;padding-top:1.4rem;border-top:1px solid var(--line);font-family:var(--mono);font-size:.74rem;color:var(--ink-3);letter-spacing:.04em}
footer .end span{margin-right:auto}
footer .end a:hover{color:var(--ink)}

/* responsive ----------------------------------------------------------- */
@media(max-width:1000px){
  .hero-grid{grid-template-columns:1fr}
  .cards,.conf{grid-template-columns:1fr 1fr}
  .stages{grid-template-columns:1fr 1fr 1fr}
  .head{grid-template-columns:1fr;gap:.5rem}
  .pilot,.limits{grid-template-columns:1fr}
}
@media(max-width:700px){
  .wrap{width:calc(100% - 2.5rem)}
  .top .wrap{height:auto;flex-wrap:wrap;padding:.8rem 0;gap:.6rem 1rem}
  .top nav{order:3;width:100%;overflow-x:auto;gap:1.2rem;padding-bottom:.2rem;margin:0;white-space:nowrap;-webkit-overflow-scrolling:touch}
  .top .lang{margin-left:auto}
  .hero .wrap{padding:3.5rem 0 3rem}
  .section{padding:4rem 0}
  .cards,.conf,.stages{grid-template-columns:1fr}
  .diagram{display:none}
  .diagram-list{display:block;list-style:none;padding:0;margin:2.5rem 0 0;border:1px solid var(--line);border-radius:var(--r);background:var(--card);overflow:hidden}
  .diagram-list li{padding:1.2rem 1.2rem;border-top:1px solid var(--line)}
  .diagram-list li:first-child{border-top:0}
  .diagram-list .kicker{display:block;font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--blue);margin-bottom:.3rem}
  .diagram-list b{font-family:var(--disp);font-weight:600;font-size:1.1rem}
  .diagram-list p{margin:.3rem 0 0;font-size:.9rem;color:var(--ink-2)}
  footer .wrap{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}