*,*::before,*::after{box-sizing:border-box}body{margin:0}img{max-width:100%}[hidden]{display:none!important}:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}

/* 単一カラムのアプリ：上に「今夜の判定」をオーロラの夜空ごと見せ、その下に時間ごとの見込み → いまの宇宙天気 → Kp 3日予報 */
:root{
  --night:#0a1122;
  --panel:#101a30;
  --panel2:#16213b;
  --line:#26334f;
  --snow:#e8edf5;
  --mute:#8f9cb5;
  --oxygen:#5ef0a6;   /* 557.7 nm 酸素の緑 */
  --nitrogen:#b98cff; /* 427.8 nm 窒素の紫 */
  --warn:#f2c14e;
  --bad:#ff7a7a;
  --f-display:"Zen Old Mincho","Hiragino Mincho ProN","Yu Mincho",serif;
  --f-body:"Zen Kaku Gothic New","Hiragino Sans","Noto Sans JP",system-ui,sans-serif;
  --f-data:"IBM Plex Mono",ui-monospace,"SFMono-Regular",monospace;
  color-scheme:dark;
}
html,body{background:var(--night);color:var(--snow)}
body{font-family:var(--f-body);font-size:15px;line-height:1.7;padding:0 16px}
.wrap{max-width:760px;margin:0 auto;padding-block:16px 48px;display:flex;flex-direction:column;gap:28px}
h1,h2{text-wrap:balance;margin:0}
h2{font-size:17px;font-weight:700;letter-spacing:.02em}
.sub{color:var(--mute);font-size:13px;margin:4px 0 0}
.num,.mono{font-family:var(--f-data);font-variant-numeric:tabular-nums}
button,select,input{font:inherit;color:var(--snow)}
:focus-visible{outline:2px solid var(--oxygen);outline-offset:2px}

/* hero */
.hero{position:relative;border-radius:18px;overflow:hidden;background:linear-gradient(180deg,#050a16 0%,#0c1730 70%,#13203a 100%);border:1px solid var(--line)}
#sky{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero-in{position:relative;padding:18px 20px 22px;display:flex;flex-direction:column;gap:6px}
.loc-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:14px}
.loc-row label{font-size:12px;color:var(--mute);letter-spacing:.08em}
select{background:rgba(10,17,34,.75);border:1px solid var(--line);border-radius:999px;padding:6px 12px;max-width:100%}
.eyebrow{margin:0;font-size:13px;color:var(--mute);letter-spacing:.06em}
.score{display:flex;align-items:baseline;gap:6px}
.score .num{font-size:64px;line-height:1;font-weight:500;color:var(--oxygen);text-shadow:0 0 24px rgba(94,240,166,.35)}
.score .of{font-family:var(--f-data);color:var(--mute);font-size:16px}
#verdict{font-family:var(--f-display);font-weight:900;font-size:30px;line-height:1.3;margin:0}
.brandbar{display:flex;align-items:baseline;flex-wrap:wrap;gap:2px 10px}
.brand-h1{font-family:var(--f-display);font-weight:900;font-size:22px;margin:0}
.brand-h1 .en-name{font-family:var(--f-body);font-weight:400;font-size:12px;letter-spacing:.12em;color:var(--mute);margin-left:8px}
.tagline{margin:0;font-size:12px;color:var(--mute);flex-basis:100%}
#window{margin:2px 0 0;font-size:15px}
#reason{margin:0;color:var(--mute);font-size:14px}
.hero[data-level="low"] .score .num{color:var(--mute);text-shadow:none}
.hero[data-level="maybe"] .score .num{color:#a9e8c6}

/* status */
.status{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--mute);margin-top:-16px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);border-radius:999px;padding:2px 10px;background:var(--panel)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--mute)}
.chip[data-s="live"] .dot{background:var(--oxygen)}
.chip[data-s="fail"] .dot{background:var(--bad)}
.chip[data-s="loading"] .dot{background:var(--warn)}
.btn{background:var(--panel2);border:1px solid var(--line);border-radius:999px;padding:4px 14px;cursor:pointer}
.btn:hover{border-color:var(--oxygen)}

/* manual */
.manual{background:var(--panel);border:1px dashed var(--line);border-radius:14px;padding:14px 16px;display:flex;flex-direction:column;gap:10px}
.manual p{margin:0;font-size:13px;color:var(--mute)}
.slider{display:grid;grid-template-columns:7em 1fr 4.5em;align-items:center;gap:10px;font-size:14px}
.slider output{font-family:var(--f-data);text-align:right}
input[type=range]{width:100%;accent-color:var(--oxygen)}

/* custom location */
.custom{display:flex;flex-wrap:wrap;gap:8px;align-items:end}
.custom label{display:flex;flex-direction:column;font-size:12px;color:var(--mute);gap:2px}
.custom input{width:8em;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:6px 8px}
.msg{font-size:12px;color:var(--warn);margin:0}

/* charts */
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:14px;background:var(--panel)}
.scroll svg{display:block}
svg text{font-family:var(--f-data);font-size:11px;fill:var(--mute)}
svg .lbl-strong{fill:var(--snow)}
.hit{cursor:pointer;-webkit-tap-highlight-color:transparent}
.hit:focus{outline:none}
.hit:focus-visible{stroke:var(--snow);stroke-width:1.5}
.detail{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-top:10px;display:flex;flex-direction:column;gap:12px}
.d-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.d-time{font-weight:700;font-size:15px}
.d-time small{display:block;color:var(--mute);font-weight:400;font-size:12px}
.d-score{display:flex;align-items:baseline;gap:8px}
.d-score .num{font-size:30px;line-height:1;color:var(--oxygen)}
.d-score .pill{margin:0}
.meters{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px 18px}
.meter{display:flex;flex-direction:column;gap:4px;min-width:0}
.meter .lab{display:flex;justify-content:space-between;font-size:12px;color:var(--mute)}
.meter .lab b{font-family:var(--f-data);font-weight:500;color:var(--snow)}
.meter .bar{height:6px;background:var(--panel2);border-radius:3px;overflow:hidden}
.meter .bar i{display:block;height:100%;border-radius:3px}
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:0 24px;margin:0}
.facts .row{padding:7px 0}
/* map */
.map-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:10px}
.map-head>div{min-width:0;flex:1 1 280px}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--panel)}
.seg button{background:none;border:0;padding:6px 12px;font-size:13px;cursor:pointer;color:var(--mute)}
.seg button[aria-pressed="true"]{background:var(--panel2);color:var(--snow);box-shadow:inset 0 -2px 0 var(--oxygen)}
.map-now{margin:10px 0 0;font-size:14px}
.map-now b{font-weight:700}
.map-wrap{position:relative;margin:10px auto 0;max-width:560px}
#map{display:block;width:100%;aspect-ratio:1/1;max-width:100%;border-radius:14px;background:var(--panel);border:1px solid var(--line);touch-action:none;cursor:grab;user-select:none;-webkit-user-select:none}
#map:active{cursor:grabbing}
.map-ctl{position:absolute;right:10px;top:10px;display:flex;flex-direction:column;gap:6px}
.map-ctl button{width:38px;height:38px;display:grid;place-items:center;border-radius:10px;border:1px solid var(--line);background:rgba(16,26,48,.88);color:var(--snow);cursor:pointer;padding:0}
.map-ctl button:hover{border-color:var(--oxygen)}
.map-ctl button[aria-pressed="true"]{border-color:var(--oxygen);color:var(--oxygen)}
.near-ctl{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:10px}
.rank{display:inline-grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--snow);color:var(--night);font-family:var(--f-data);font-size:11px;font-weight:500;margin-right:8px;vertical-align:1px}
.spot .acts{display:flex;gap:6px;justify-self:end;flex-wrap:wrap;justify-content:flex-end}
a.btn{text-decoration:none;display:inline-block;color:var(--snow)}
.map-ctl svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.map-hint{font-size:12px;color:var(--mute);margin:8px 0 0;text-align:center}
.map-src{position:absolute;left:10px;bottom:10px;margin:0;font-size:11px;color:var(--snow);background:rgba(10,17,34,.78);padding:2px 9px;border-radius:999px;max-width:calc(100% - 20px)}
.ramp{display:inline-flex;align-items:center;gap:6px}
.legend .ramp i{width:96px;height:8px;border-radius:4px;margin:0;background:linear-gradient(90deg,rgba(94,240,166,.35),#5ef0a6 30%,#f2e14e 62%,#ff5a5a)}
.ramp .mono{font-size:11px}
.dash{display:inline-block;width:18px;border-top:2px dashed var(--nitrogen);vertical-align:middle;margin-right:5px}
.ringdot{display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:5px;vertical-align:-1px}
.tapinfo{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-top:10px;display:flex;flex-direction:column;gap:8px}
.tapinfo .t-head{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.tapinfo .t-head b{font-size:15px}
.h3{font-size:15px;margin:22px 0 0;font-weight:700}
.spots{display:flex;flex-direction:column;margin-top:4px}
.spot{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:4px 12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--line)}
.spot .nm{font-weight:700;min-width:0}
.spot .nm small{font-weight:400;color:var(--mute);margin-left:6px;font-size:12px}
.spot .vals{font-size:12px;color:var(--mute);min-width:0}
.spot .st,.spot .go{justify-self:end}
.chip-s{font-size:12px;padding:1px 10px;border-radius:999px;border:1px solid currentColor;white-space:nowrap}
.s-vis{color:var(--oxygen)} .s-dim{color:var(--warn)} .s-none{color:var(--mute)}
.btn.sm{padding:2px 12px;font-size:12px}
.more{margin-top:10px;align-self:flex-start}
/* next 3 nights */
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;flex-wrap:wrap;gap:8px}
.nights{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:12px}
.night{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:12px 12px 14px;display:flex;flex-direction:column;gap:2px;cursor:pointer;text-align:left;color:var(--snow);font:inherit;min-width:0}
.night:hover{border-color:var(--oxygen)}
.night .nl{font-size:13px;font-weight:700}
.night .nd{font-size:11px;color:var(--mute)}
.night .ns{font-family:var(--f-data);font-size:34px;line-height:1.1;margin-top:6px}
.night .nv{font-size:12px;font-weight:700}
.night .nw{font-size:11px;color:var(--mute);font-family:var(--f-data)}
.night .nf{font-size:11px;color:var(--mute);margin-top:4px;display:flex;flex-wrap:wrap;gap:2px 8px}
.night .nx{font-size:10px;color:var(--warn);margin-top:2px}
.alertbox{margin-top:12px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:14px 16px;display:flex;flex-wrap:wrap;gap:10px 16px;align-items:center;justify-content:space-between}
.alertbox[data-on="true"]{border-color:var(--oxygen)}
.ab-text{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1 1 240px}
.ab-text b{font-size:15px}
.ab-ctl{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.chk{display:inline-flex;gap:6px;align-items:center;font-size:13px;color:var(--mute);cursor:pointer}
.chk input{accent-color:var(--oxygen);width:16px;height:16px}
#alertToggle[aria-pressed="true"]{background:var(--oxygen);color:var(--night);border-color:var(--oxygen);font-weight:700}
/* nowcast banner */
.nowcast{position:fixed;left:0;right:0;bottom:0;z-index:20;padding:0 12px calc(12px + env(safe-area-inset-bottom,0px))}
.nc-in{max-width:760px;margin:0 auto;display:flex;align-items:center;gap:12px;justify-content:space-between;border-radius:16px;padding:14px 16px;background:var(--panel2);border:2px solid var(--warn);box-shadow:0 10px 40px rgba(0,0,0,.5)}
.nowcast[data-lv="2"] .nc-in{border-color:var(--oxygen);background:linear-gradient(90deg,rgba(94,240,166,.22),rgba(185,140,255,.18)),var(--panel2);animation:ncpulse 2.4s ease-in-out infinite}
@keyframes ncpulse{0%,100%{box-shadow:0 0 0 0 rgba(94,240,166,.0),0 10px 40px rgba(0,0,0,.5)}50%{box-shadow:0 0 0 6px rgba(94,240,166,.25),0 10px 40px rgba(0,0,0,.5)}}
@media (prefers-reduced-motion: reduce){.nowcast[data-lv="2"] .nc-in{animation:none}}
.nc-in b{display:block;font-family:var(--f-display);font-size:20px}
.nc-in span{font-size:13px;color:var(--snow);opacity:.85}
.nc-x{background:none;border:1px solid var(--line);color:var(--snow);border-radius:10px;width:36px;height:36px;font-size:20px;line-height:1;cursor:pointer;flex:none}
/* hero share */
.hero-act{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}
.btn.share{display:inline-flex;align-items:center;gap:8px;background:rgba(10,17,34,.7)}
.btn.share svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
/* share modal */
.modal{position:fixed;inset:0;z-index:30;background:rgba(5,10,22,.82);display:flex;align-items:center;justify-content:center;padding:16px}
.modal-in{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:16px;width:100%;max-width:420px;max-height:100%;overflow:auto;display:flex;flex-direction:column;gap:10px}
.modal-head{display:flex;justify-content:space-between;align-items:center}
.modal-in img{width:100%;max-height:58vh;object-fit:contain;border-radius:12px;background:var(--night)}
.modal-act{display:flex;flex-wrap:wrap;gap:8px}
/* place guide + place links */
.guide,.locnav{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px;display:flex;flex-direction:column;gap:10px}
.guide p{margin:0;font-size:14px;line-height:1.75;max-width:65ch}
.gfacts{display:grid;grid-template-columns:repeat(auto-fit,minmax(96px,1fr));gap:8px;margin:0}
.gfacts div{background:var(--panel2);border-radius:12px;padding:10px 12px;min-width:0}
.gfacts dt{font-size:11px;color:var(--mute)}
.gfacts dd{margin:2px 0 0;font-size:15px;font-weight:700}
.guide ul{margin:0;padding-left:1.2em;display:flex;flex-direction:column;gap:6px;font-size:14px;line-height:1.65;max-width:65ch}
.locnav ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.locnav a{display:inline-block;padding:6px 12px;border:1px solid var(--line);border-radius:999px;color:var(--snow);text-decoration:none;font-size:13px;background:var(--panel2)}
.locnav a:hover,.locnav a[aria-current="page"]{border-color:var(--oxygen)}
.alt-lang{font-size:12px;color:var(--oxygen);margin-left:auto}
/* share invite */
.invite{background:linear-gradient(135deg,rgba(94,240,166,.10),rgba(185,140,255,.10)),var(--panel);border:1px solid var(--line);border-radius:18px;padding:18px;display:flex;flex-direction:column;gap:10px}
.invite h2{font-family:var(--f-display);font-weight:900;font-size:22px}
.invite p{margin:0;font-size:14px;color:var(--snow);opacity:.9;max-width:60ch}
.invite .tags{font-family:var(--f-data);font-size:13px;color:var(--oxygen)}
.invite .acts{display:flex;flex-wrap:wrap;gap:8px}
.invite .msg{color:var(--oxygen)}
/* calendar */
.cal-nav{display:flex;align-items:center;justify-content:space-between;margin-top:12px;gap:8px}
.cal-nav b{font-size:16px}
.cal{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px;margin-top:8px}
.cal .wd{font-size:11px;color:var(--mute);text-align:center;padding:2px 0}
.cal .day{position:relative;border:1px solid var(--line);border-radius:10px;min-height:58px;padding:4px 4px 3px;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--snow);font:inherit;cursor:pointer;background:var(--panel)}
.cal .day:disabled{opacity:.35;cursor:default}
.cal .day .dn{font-family:var(--f-data);font-size:12px;align-self:flex-start;line-height:1}
.cal .day svg{width:18px;height:18px}
.cal .day .kp{font-family:var(--f-data);font-size:10px;line-height:1}
.cal .day .kp.g{color:var(--oxygen)}.cal .day .kp.y{color:var(--warn)}.cal .day .kp.r{color:var(--bad)}
.cal .day[aria-pressed="true"]{outline:2px solid var(--snow);outline-offset:-1px}
.cal .day.today .dn{color:var(--oxygen);font-weight:700}
.cal .empty{min-height:58px}
:root:not([lang="en"]) [data-lang="en"],:root[lang="en"] [data-lang="ja"]{display:none!important}
.lang-seg{margin-left:auto}
.lang-seg button{padding:4px 10px;font-size:12px}
.legend{display:flex;flex-wrap:wrap;gap:14px;font-size:12px;color:var(--mute);margin-top:8px}
.legend i{display:inline-block;width:12px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px}

/* now list */
.now{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:0 24px;margin-top:10px}
.row{display:flex;justify-content:space-between;align-items:baseline;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);min-width:0}
.row .k{color:var(--mute);font-size:13px}
.row .v{font-family:var(--f-data);font-variant-numeric:tabular-nums;text-align:right}
.row .v small{color:var(--mute);font-size:11px;display:block;font-family:var(--f-body)}
.pill{font-family:var(--f-body);font-size:11px;padding:1px 8px;border-radius:999px;border:1px solid currentColor;margin-left:6px}
.good{color:var(--oxygen)} .warn{color:var(--warn)} .bad{color:var(--bad)}

details{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:12px 16px}
summary{cursor:pointer;font-weight:700}
details p,details li{font-size:14px;color:var(--mute);max-width:65ch}
details ul{padding-left:1.2em}
footer{font-size:12px;color:var(--mute)}
footer a{color:var(--snow)}
@media (max-width:420px){.score .num{font-size:54px}#verdict{font-size:26px}}