/* UPSA Helios — instrument UI in the UPSA Radar / Eclipse Almanac family.
   Square geometry, IBM Plex, paper chrome over a dark scientific viewport.
   Yellow is selection/time; orange-red is reserved for solar plasma events. */
:root{
  --paper:#FAFBFD;--panel:#FFFFFF;--ink:#0B1526;--navy:#0B2050;
  --muted:#5A6B85;--dim:#8A97AC;--line:#D8DEE9;--line2:#AEB9CC;
  --accent:#FFD400;--live:#1F9D5B;--space:#02060F;--solar:#FF7A2F;
  --solar2:#FFB14A;--cyan:#55C7DE;--blue:#5D8DF6;
  --sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --out:cubic-bezier(.23,1,.32,1)
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{width:100%;height:100%;overflow:hidden}
body{font-family:var(--sans);font-size:14px;line-height:1.45;background:var(--space);color:var(--ink);-webkit-font-smoothing:antialiased}
a{color:var(--navy)}
a:hover{background:var(--accent);color:var(--ink);text-decoration:none}
button{font:inherit;color:var(--navy);background:var(--panel);border:1px solid var(--line);border-radius:0;cursor:pointer;transition:background-color 120ms var(--out),border-color 120ms var(--out),color 120ms var(--out)}
button:hover{border-color:var(--line2)}
button:active{transform:scale(.98)}
button:focus-visible,input:focus-visible,a:focus-visible{outline:2px solid var(--navy);outline-offset:1px}
.mono{font-family:var(--mono)}
[hidden]{display:none!important}
#space{position:fixed;inset:0;width:100%;height:100%;display:block;background:#02060f;touch-action:none}

/* topbar */
.bar{position:fixed;top:0;left:0;right:0;z-index:30;height:54px;display:flex;align-items:center;gap:14px;padding:9px 16px;background:rgba(250,251,253,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(10px)}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:none}
.brand:hover{background:none}
.mark-chip{width:26px;height:26px;background:var(--navy);display:flex;align-items:center;justify-content:center;flex:none}
.mark-chip img{display:block;width:20px;height:auto}
.mark{font-size:15px;letter-spacing:.14em;font-weight:400;color:var(--ink);white-space:nowrap}
.mark b{font-weight:600;color:var(--navy)}
.subtitle{font-size:12px;color:var(--muted);padding-left:14px;border-left:1px solid var(--line)}
.langsw{display:flex;margin-left:auto}
.langsw button{padding:4px 7px;font:10.5px var(--mono);letter-spacing:.08em;text-transform:uppercase}
.langsw button+button{border-left:0}
.langsw button.on{background:var(--accent);border-color:var(--ink);color:var(--ink)}
.clock{display:flex;align-items:center;gap:9px;white-space:nowrap}
.clock .mono{font-size:12px;color:var(--navy);font-variant-numeric:tabular-nums}
.live{font:600 10.5px var(--mono);letter-spacing:.12em;color:#fff;background:var(--live);padding:2px 7px}
.live.history{background:var(--navy)}
.live.playing{background:#D55A1B}

/* left console */
.panel-toggle{position:fixed;left:16px;top:65px;z-index:24;padding:5px 12px;font:12px var(--mono);letter-spacing:.08em;color:var(--muted)}
.panel{position:fixed;left:16px;top:103px;bottom:122px;z-index:23;width:276px;background:rgba(255,255,255,.97);border:1px solid var(--line);box-shadow:0 10px 30px rgba(0,0,0,.23);overflow:hidden;display:flex;flex-direction:column}
.panel.hidden{display:none}
.sect{padding:13px 14px;border-bottom:1px solid var(--line)}
.sect h2{font:500 10.5px var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);margin-top:9px}
.summary-grid>div{background:var(--paper);padding:8px 9px;min-width:0;display:flex;flex-direction:column;gap:2px}
.summary-grid .wide{grid-column:1/-1}
.summary-grid .k{font:9.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.summary-grid b{font-size:18px;font-weight:500;color:var(--navy);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.summary-grid .wide b{font-size:13px}
.source-age{margin-top:8px;font-size:10.5px;color:var(--dim)}
.events-sect{padding-bottom:0;min-height:0;display:flex;flex-direction:column;flex:1}
.sect-head{display:flex;justify-content:space-between;align-items:center}
.count{font-size:11px;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:5px;margin:9px 0 10px}
.chips button{padding:3px 8px;font:11px var(--mono);letter-spacing:.03em;color:var(--muted)}
.chips button.on{background:var(--accent);border-color:var(--ink);color:var(--ink)}
.event-list{margin:0 -14px;overflow:auto;border-top:1px solid var(--line);scrollbar-width:thin;scrollbar-color:var(--line2) transparent}
.event-row{width:100%;display:grid;grid-template-columns:38px 1fr auto;gap:8px;align-items:start;padding:8px 10px 8px 14px;border:0;border-bottom:1px solid var(--line);text-align:left;background:#fff;color:var(--ink)}
.event-row:hover,.event-row.sel{background:#FFF9D7}
.event-row.sel{box-shadow:inset 3px 0 0 var(--accent)}
.event-row .tag{font:600 9px var(--mono);letter-spacing:.08em;padding:2px 4px;text-align:center;color:#fff;background:var(--navy);margin-top:2px}
.event-row.cme .tag{background:#D55A1B}.event-row.flare .tag{background:#9B4DC4}.event-row.storm .tag{background:#3263C7}
.event-row .main{min-width:0}
.event-row .ttl{display:block;font-size:12.5px;font-weight:500;color:var(--navy);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.event-row .sub{display:block;font:10.5px var(--mono);color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.event-row .tm{font:10px var(--mono);color:var(--dim);white-space:nowrap;margin-top:2px}
.panel-foot{padding:9px 13px 10px;font-size:10.5px;color:var(--muted);display:flex;justify-content:space-between;gap:8px;background:var(--paper);border-top:1px solid var(--line)}

/* detail card */
.card{position:fixed;right:16px;top:76px;z-index:24;width:320px;max-height:calc(100vh - 194px);overflow:auto;background:var(--panel);border:1px solid var(--line2);border-top:3px solid var(--accent);padding:14px 16px 16px;box-shadow:0 10px 30px rgba(0,0,0,.25);animation:cardIn 170ms var(--out)}
@keyframes cardIn{from{opacity:0;transform:translateY(5px)}}
.card .x,dialog .x{position:absolute;top:6px;right:6px;width:27px;height:27px;border:0;background:none;color:var(--muted);font-size:18px;line-height:1}
.card .x:hover,dialog .x:hover{color:var(--ink);background:var(--accent)}
.card .type{display:inline-block;font-size:10px;letter-spacing:.14em;font-weight:600;color:#fff;background:#D55A1B;padding:2px 7px;margin-bottom:7px}
.card h2{font-size:19px;line-height:1.2;color:var(--navy);padding-right:24px;margin-bottom:4px}
.card .ids{font-size:10.5px;color:var(--muted);word-break:break-all;margin-bottom:12px}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);margin-bottom:12px}
.detail-grid>div{background:var(--paper);padding:7px 9px;min-width:0}
.detail-grid .wide{grid-column:1/-1}
.detail-grid .k{display:block;font:9px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:2px}
.detail-grid .v{display:block;font:12.5px var(--mono);color:var(--navy);overflow:hidden;text-overflow:ellipsis}
.detail-note{font-size:12px;color:var(--muted);margin:9px 0;line-height:1.5}
.impact-title{font:500 10px var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--muted);margin:12px 0 6px}
.impact-list{border:1px solid var(--line)}
.impact{display:flex;justify-content:space-between;gap:10px;padding:6px 8px;border-bottom:1px solid var(--line);font-size:11.5px}
.impact:last-child{border-bottom:0}.impact span:last-child{font-family:var(--mono);color:var(--navy);white-space:nowrap}
.earth-impact{background:#FFF9D7}
.card-actions{display:flex;gap:6px;margin-top:12px;align-items:center}
.card-actions button,.card-actions a{padding:5px 9px;font:11px var(--mono);text-decoration:none;border:1px solid var(--line);background:#fff;color:var(--navy)}
.card-actions a:hover,.card-actions button:hover{background:var(--accent);border-color:var(--ink);color:var(--ink)}

/* plot marginalia */
.plot-label{position:fixed;right:16px;top:65px;z-index:18;padding:4px 8px;border:1px solid rgba(170,190,220,.28);background:rgba(2,6,15,.55);color:#91A4C3;font-size:10.5px;letter-spacing:.04em;backdrop-filter:blur(5px)}

/* timeline */
.timeline{position:fixed;left:308px;right:16px;bottom:16px;z-index:25;height:92px;background:rgba(250,251,253,.97);border:1px solid var(--line);box-shadow:0 10px 30px rgba(0,0,0,.22);padding:9px 12px 7px;backdrop-filter:blur(10px)}
.tl-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:4px}
.tl-controls{display:flex;align-items:center;gap:5px}
.tl-controls button{height:27px;padding:0 9px;font:11px var(--mono)}
.tl-controls .sq{width:29px;padding:0;font-size:12px}.tl-controls .now-btn{background:var(--accent);border-color:var(--ink);color:var(--ink);font-weight:500}.tl-controls .speed{min-width:48px;color:var(--muted)}
.tl-readout{display:flex;gap:8px;align-items:baseline}.tl-readout .lbl{font:9.5px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}.tl-readout b{font-size:12px;font-weight:500;color:var(--navy);font-variant-numeric:tabular-nums}
.tl-track{height:26px;position:relative}
#scrub{position:absolute;left:0;right:0;top:5px;width:100%;height:14px;margin:0;appearance:none;background:transparent;z-index:3;cursor:ew-resize}
#scrub::-webkit-slider-runnable-track{height:2px;background:var(--line2)}
#scrub::-moz-range-track{height:2px;background:var(--line2)}
#scrub::-webkit-slider-thumb{appearance:none;width:9px;height:18px;background:var(--accent);border:1px solid var(--ink);border-radius:0;margin-top:-8px}
#scrub::-moz-range-thumb{width:9px;height:18px;background:var(--accent);border:1px solid var(--ink);border-radius:0}
.markers{position:absolute;left:4px;right:4px;top:5px;height:16px;pointer-events:none;z-index:2}
.marker{position:absolute;top:2px;width:1px;height:10px;background:#D55A1B;opacity:.72}.marker.flare{background:#9B4DC4}.marker.storm{background:#3263C7;height:14px;top:0}.marker.earth{background:var(--accent);width:2px;height:16px;top:-1px;box-shadow:0 0 0 1px rgba(11,21,38,.25)}
.tl-ends{display:flex;justify-content:space-between;font-size:9.5px;color:var(--dim);margin-top:-1px}

/* bottom-left attribution */
.attrib{position:fixed;left:16px;bottom:16px;z-index:25;width:276px;min-height:32px;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 9px;background:rgba(250,251,253,.97);border:1px solid var(--line);font-size:10px;color:var(--muted)}
.attrib a{color:var(--navy);text-decoration:none;border-bottom:1px solid var(--line2)}
.attrib button{border:0;background:none;font:inherit;color:var(--navy);text-decoration:underline;padding:0}.attrib button:hover{background:var(--accent);text-decoration:none}

/* dialog */
dialog#about{margin:auto;width:min(590px,calc(100vw - 32px));max-height:calc(100vh - 32px);overflow:auto;background:var(--panel);color:var(--ink);border:1px solid var(--line2);border-top:3px solid var(--accent);padding:26px 30px}
dialog#about::backdrop{background:rgba(2,6,15,.72)}
dialog#about h2{font-size:21px;color:var(--navy);margin-bottom:12px}dialog#about h3{font:500 10.5px var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:16px 0 6px}dialog#about p{font-size:13.5px;margin-bottom:8px}dialog#about .upsa{border-top:1px solid var(--line);padding-top:12px;margin-top:15px}dialog#about .built{font-size:11px;color:var(--muted)}

/* loader */
.loading{position:fixed;inset:0;z-index:50;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;background:var(--space);color:#AFC0DB;transition:opacity .5s}
.loading.done{opacity:0;pointer-events:none}.solar-loader{position:relative;width:62px;height:62px;border:1px solid rgba(255,177,74,.28);border-radius:50%;display:grid;place-items:center;box-shadow:0 0 34px rgba(255,122,47,.2)}.solar-loader::before{content:"";width:24px;height:24px;border-radius:50%;background:#FFD15C;box-shadow:0 0 10px #ff8a2c,0 0 25px rgba(255,122,47,.7)}.solar-loader i{position:absolute;width:56px;height:56px;border:1px dashed rgba(255,212,0,.65);border-radius:50%;animation:spin 4s linear infinite}.loading .mono{font-size:11.5px;letter-spacing:.06em}@keyframes spin{to{transform:rotate(360deg)}}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}

/* mobile */
@media(max-width:820px){
 .bar{height:auto;min-height:50px;padding:8px 10px;gap:9px;flex-wrap:wrap}.hide-m{display:none}.brand .mark{font-size:13px}.langsw{margin-left:auto}.clock{margin-left:auto}.clock .mono{font-size:10.5px}
 .panel-toggle{left:10px;top:58px}.panel{left:10px;right:10px;top:94px;bottom:116px;width:auto;max-height:44vh}.panel.hidden{display:none}
 .card{left:10px;right:10px;top:auto;bottom:116px;width:auto;max-height:48vh;z-index:27}
 .plot-label{top:58px;right:10px;max-width:60vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .timeline{left:10px;right:10px;bottom:10px;height:96px}.tl-readout .lbl{display:none}.tl-readout b{font-size:10.5px}.tl-controls button{padding:0 7px}
 .attrib{display:none}.summary-grid b{font-size:16px}
}
@media(max-width:480px){
 .langsw button{padding:4px 5px;font-size:9px}.clock .mono{display:none}.panel-toggle{top:55px}.plot-label{top:55px}.timeline{height:101px}.tl-top{align-items:flex-start}.tl-readout{max-width:42%;text-align:right}.tl-readout b{white-space:normal;line-height:1.25}
}