/* 「今度は、本物の太陽系へ。」 — the portal card to solar-system.html.
   A framed window (like .midnight-lab) with a live 2D orrery (solar-invitation.js) behind the copy. */
.solar-invitation-wrap{padding-top:clamp(30px,3.6vw,60px);padding-bottom:clamp(44px,4.6vw,76px)}
.solar-invitation{--si-line:#adc9df3b;--si-inset:clamp(24px,3.4vw,58px);position:relative;isolation:isolate;display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:auto 1fr auto;min-height:clamp(380px,34vw,560px);border:1px solid var(--si-line);border-radius:10px;overflow:hidden;background:#03060d;color:var(--white);box-shadow:0 40px 90px -60px #000;transition:border-color .6s var(--ease),box-shadow .6s var(--ease)}
.js-on .solar-invitation.reveal{transition:opacity .9s var(--ease),transform .9s var(--ease),border-color .6s var(--ease),box-shadow .6s var(--ease)}
.solar-invitation:hover,.solar-invitation:focus-visible{--si-line:#cfe6f770;box-shadow:0 40px 110px -50px #8ed8ff2e,0 0 0 1px #8ed8ff14 inset}
.solar-invitation:focus-visible{outline:2px solid var(--lime);outline-offset:6px}

/* The window: sky + orrery canvases, shade for the copy, vignette, viewfinder corners. */
.si-visual{position:absolute;inset:0;z-index:0;overflow:hidden;background:radial-gradient(ellipse 70% 90% at 64% 52%,#0a1020 0%,#050913 45%,#03060d 100%)}
.si-visual>canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.si-visual>.si-sky{inset:-12px;width:calc(100% + 24px);height:calc(100% + 24px);will-change:transform}
.si-shade{position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,#03060df2 0%,#03060dd9 22%,#03060d8c 38%,#03060d1f 55%,transparent 68%),linear-gradient(0deg,#03060dcc 0%,transparent 22%,transparent 82%,#03060d8c 100%),radial-gradient(ellipse 88% 125% at 64% 52%,transparent 50%,#03060d99 100%)}
.si-shade::before,.si-shade::after{content:"";position:absolute;width:12px;height:12px;border:0 solid #8ed8ff5c;transition:border-color .6s var(--ease),transform .6s var(--ease)}
.si-shade::before{top:12px;right:12px;border-top-width:1px;border-right-width:1px}
.si-shade::after{bottom:12px;right:12px;border-bottom-width:1px;border-right-width:1px}
.solar-invitation:hover .si-shade::before,.solar-invitation:focus-visible .si-shade::before{border-color:#8ed8ffb3;transform:translate(3px,-3px)}
.solar-invitation:hover .si-shade::after,.solar-invitation:focus-visible .si-shade::after{border-color:#8ed8ffb3;transform:translate(3px,3px)}

/* Telemetry rows (mono, the site's signature detail) — all text shares one left edge: --si-inset. */
.si-hud,.si-foot{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:22px var(--si-inset) 0;font:400 9px/1.6 var(--mono);letter-spacing:.14em;color:#c4d3df;text-transform:uppercase}
.si-foot{align-items:flex-end;padding:18px var(--si-inset) 22px;color:#9fb0bf}
.si-live{display:inline-flex;align-items:center;gap:10px;margin-left:-12px;padding:6px 12px 6px 11px;border:1px solid #ffffff1f;border-radius:30px;background:#03060d99;white-space:nowrap}
.si-live>i{width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 10px #d9f56c90;animation:si-pulse 2.4s ease-in-out infinite}
.si-live>b{font-weight:700;color:var(--lime);letter-spacing:.16em}
.si-live>time{font-variant-numeric:tabular-nums;letter-spacing:.08em;color:#eef4f6}
.si-live>span{font:400 10px/1 var(--body);letter-spacing:.04em;text-transform:none;color:#c4d3df}
.solar-invitation[data-si-state=lapse] .si-live>i{background:#f5cb79;box-shadow:0 0 10px #f5cb7990}
.solar-invitation[data-si-state=lapse] .si-live>b{color:#f5cb79}
.si-hud-meta{display:flex;align-items:center;gap:0;white-space:nowrap;color:#a9bccb}
.si-hud-meta>span+span::before{content:"·";margin:0 .9em;color:#6f8192}
.si-view{color:#8d9fb0}
.si-telemetry{white-space:nowrap;text-align:right}
.si-note{font:400 10px/1.7 var(--body);letter-spacing:.04em;text-transform:none;color:#94a6b6}
.si-note>span{display:inline-block}
.si-note>small{display:flex;flex-wrap:wrap;column-gap:1.8em;margin-top:4px;font:400 9px/1.6 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#8494a4}
.si-note>small>span{white-space:nowrap}
@keyframes si-pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.7)}}

/* Copy: kicker, bold heading, teaser, chips, and an unmistakable button. */
.si-copy{position:relative;z-index:2;align-self:center;width:min(47%,640px);padding:22px 0 8px var(--si-inset)}
.si-copy>.section-kicker{display:block;color:#b1cadd;letter-spacing:.16em}
.si-copy h3{margin:18px 0 20px;font-size:clamp(30px,3.15vw,54px);font-weight:700;line-height:1.3;letter-spacing:-.035em;text-shadow:0 3px 40px #02040bee}
.si-copy p>span{display:inline-block}
.si-copy p{margin:0;font-size:clamp(12px,.98vw,15px);line-height:2.15;color:#c3d0dc;text-shadow:0 2px 14px #02040b}
.si-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:22px}
.si-chips>span{font:400 9px/1 var(--mono);letter-spacing:.12em;color:#b9c9d6;border:1px solid #ffffff21;border-radius:2px;padding:6px 9px;background:#03060d8c}
/* The CTA row: a real lime button + where it goes ("NEXT PAGE"), so the card never reads as a picture. */
.si-cta-row{display:flex;align-items:center;gap:22px;margin-top:30px}
.si-cta{position:relative;overflow:hidden;flex:none;gap:26px;min-height:56px;padding-inline:26px 22px;font-size:13px;letter-spacing:.04em;box-shadow:0 10px 30px -14px #d9f56c55}
.si-cta>span{display:inline-block;transition:transform .45s var(--ease)}
.si-cta::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,transparent 30%,#ffffffa6 50%,transparent 70%);transform:translateX(-130%);transition:transform 1s var(--ease);pointer-events:none}
.si-cta-dest{display:flex;flex-direction:column;gap:5px;padding-left:20px;border-left:1px solid #ffffff1f;white-space:nowrap}
.si-cta-dest>b{font:400 9px/1.2 var(--mono);letter-spacing:.16em;color:#c9ec74}
.si-cta-dest>span{font-size:11px;line-height:1.4;letter-spacing:.04em;color:#a9b8c5;text-shadow:0 2px 12px #02040b}
.solar-invitation:hover .si-cta,.solar-invitation:focus-visible .si-cta{transform:translateY(-3px);box-shadow:0 0 34px #d9f56c42,0 14px 30px -12px #d9f56c66}
.solar-invitation:hover .si-cta>span,.solar-invitation:focus-visible .si-cta>span{transform:translate(3px,-3px);animation:none}
.solar-invitation:hover .si-cta::after,.solar-invitation:focus-visible .si-cta::after{transform:translateX(130%);animation:none}
/* While the card is on screen (motion on): an occasional light sweep and arrow nudge, the house
   "this goes somewhere" cue — also for touch screens, which never see the hover state. */
.solar-invitation.si-on-screen .si-cta::after{animation:si-sheen 7s cubic-bezier(.45,0,.2,1) 1.6s infinite}
.solar-invitation.si-on-screen .si-cta>span{animation:si-nudge 7s var(--ease) 1.6s infinite}
@keyframes si-sheen{0%,78%{transform:translateX(-130%)}100%{transform:translateX(130%)}}
@keyframes si-nudge{0%,80%,100%{transform:none}88%{transform:translate(3px,-3px)}}
.solar-invitation.si-on-screen:hover .si-cta::after,.solar-invitation.si-on-screen:focus-visible .si-cta::after,
.solar-invitation.si-on-screen:hover .si-cta>span,.solar-invitation.si-on-screen:focus-visible .si-cta>span{animation:none}

@media(min-width:1600px){.si-copy p{font-size:15px}.si-chips>span{font-size:10px}.si-hud,.si-foot{font-size:10px}.si-note{font-size:11px}}
@media(max-width:1150px){.si-copy{width:min(54%,560px)}.si-shade{background:linear-gradient(90deg,#03060df5 0%,#03060de0 30%,#03060d99 46%,#03060d26 62%,transparent 74%),linear-gradient(0deg,#03060dcc 0%,transparent 24%,transparent 80%,#03060d99 100%),radial-gradient(ellipse 88% 125% at 66% 52%,transparent 50%,#03060d99 100%)}.si-view{display:none}}

/* Tablets and phones: the window on top (16:9 → 3:2 on phones), then the copy and the button,
   then the honest note and credits last. */
@media(max-width:900px){
  .solar-invitation{grid-template-rows:auto auto auto;min-height:0;background:#04070f}
  .si-visual{position:relative;grid-row:1;grid-column:1;aspect-ratio:16/9;inset:auto}
  .si-shade{background:linear-gradient(0deg,#04070f 0%,#04070f00 26%,#04070f00 82%,#04070f99 100%),radial-gradient(ellipse 90% 90% at 50% 50%,transparent 60%,#04070f80 100%)}
  .si-shade::after{display:none}
  .si-hud{grid-row:1;grid-column:1;align-self:start;padding:14px 14px 0;font-size:8px;gap:10px}
  .si-live{gap:7px;margin-left:0;padding:5px 9px 5px 8px}
  .si-live>span{font-size:9px}
  .si-copy{grid-row:2;width:100%;padding:18px 20px 24px;align-self:start}
  .si-copy h3{font-size:clamp(26px,7.4vw,34px);margin:14px 0 14px;line-height:1.35}
  .si-copy p{font-size:12.5px;line-height:2}
  .si-chips{margin-top:18px}
  .si-chips>span{font-size:8px;padding:5px 7px}
  .si-cta-row{flex-direction:column;align-items:stretch;gap:12px;margin-top:22px}
  .si-cta{display:flex;width:100%;justify-content:space-between}
  .si-cta-dest{flex-direction:row;flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:4px 12px;padding:0 2px;border:0}
  .si-cta-dest>b{font-size:8px;letter-spacing:.12em}
  .si-cta-dest>span{font-size:10px}
  .si-foot{grid-row:3;align-self:start;margin:0 20px;padding:14px 0 18px;border-top:1px solid #ffffff14;font-size:8px}
  .si-note{font-size:9px}
  .si-note>small{font-size:8px;letter-spacing:.06em}
  .si-telemetry{display:none}
}
@media(min-width:601px) and (max-width:900px){
  .si-hud{padding:18px 30px 0;font-size:9px}.si-live{margin-left:-10px}
  .si-foot{margin:0 30px;padding:16px 0 24px;align-items:flex-start}.si-note{font-size:10px}.si-telemetry{display:inline}
  .si-copy{padding:26px 30px 32px}.si-copy h3{font-size:clamp(34px,5.4vw,44px)}.si-copy p{font-size:14px}
  .si-chips>span{font-size:9px}
  .si-cta-row{flex-direction:row;align-items:center;gap:22px;margin-top:28px}.si-cta{display:inline-flex;width:auto}
  .si-cta-dest{flex-direction:column;align-items:flex-start;gap:5px;padding-left:20px;border-left:1px solid #ffffff1f}.si-cta-dest>b{font-size:9px}.si-cta-dest>span{font-size:11px}
}
@media(max-width:600px){.si-visual{aspect-ratio:3/2}.si-copy{padding-top:16px}.si-shade::before{display:none}}
@media(max-width:420px){.si-hud{padding:12px 12px 0}.si-hud-meta{display:none}.si-foot{margin:0 16px}.si-copy{padding:14px 16px 22px}.si-cta-dest{padding:0}.si-cta-dest>b{letter-spacing:.07em}}
/* keep the bottom-right telemetry clear of the fixed BGM player (≈150px wide, 18px from the edge) */
@media(min-width:901px){.si-foot{padding-right:max(var(--si-inset),calc(184px - var(--layout-gutter,64px) - max(0px,(100vw - 1728px)/2)))}}

html[data-motion="off"] .si-live>i,html[data-motion="off"] .si-cta::after,html[data-motion="off"] .si-cta>span{animation:none}
@media(prefers-reduced-motion:reduce){html:not([data-motion="on"]) .si-live>i,html:not([data-motion="on"]) .si-cta::after,html:not([data-motion="on"]) .si-cta>span{animation:none}}