/* FRONTIER // DECODED — History: the journey through time (history.html) */
.hx{--hx-a:#30cbdd;--hx-b:#ffb547;--hx-bg1:#05070c;--hx-bg2:#0b1420;--hx-ink:#fff7eb;--hx-dim:#a9b8c2;position:relative;height:100vh;height:100svh;min-height:560px;overflow:hidden;background:radial-gradient(ellipse at 50% 55%,var(--hx-bg2),var(--hx-bg1) 75%);color:var(--hx-ink);transition:background 1.6s ease;isolation:isolate}
.hx canvas.hx-sky{position:absolute;inset:0;width:100%;height:100%;z-index:0;display:block}
.hx-stage{position:absolute;inset:0;perspective:1100px;perspective-origin:50% 46%;z-index:1;overflow:hidden}
.hx-track{position:absolute;left:50%;top:46%;width:0;height:0;transform-style:preserve-3d;will-change:transform}
.hx-card{position:absolute;left:0;top:0;width:min(640px,86vw);transform-style:preserve-3d;backface-visibility:hidden;will-change:transform,opacity;pointer-events:none}
.hx-card .in{transform:translate(-50%,-50%);background:linear-gradient(160deg,rgba(255,255,255,.09),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.16);border-radius:20px;padding:24px 26px 20px;backdrop-filter:blur(6px);box-shadow:0 30px 80px rgba(0,0,0,.45)}
.hx-card.on{pointer-events:auto}.hx-card.on .in{border-color:var(--hx-a);box-shadow:0 0 0 1px var(--hx-a),0 30px 90px rgba(0,0,0,.55)}
.hx-card .yr{font:800 clamp(30px,5vw,58px)/1 "Saira Condensed",Inter,sans-serif;letter-spacing:-.01em;color:var(--hx-a);margin:0 0 10px}
.hx-card h3{font:700 clamp(20px,2.4vw,28px)/1.2 Inter,system-ui,sans-serif;margin:0 0 10px;color:#fff}
.hx-card p{font:400 clamp(15px,1.5vw,18px)/1.55 Inter,system-ui,sans-serif;color:#dfe7ea;margin:0}
.hx-card .meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:14px;font:600 11px "JetBrains Mono",monospace;letter-spacing:.12em;text-transform:uppercase;color:var(--hx-dim)}
.hx-card .meta a{color:var(--hx-a);text-decoration:none;border-bottom:1px solid currentColor}
.hx-card .kind{display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(255,255,255,.2);border-radius:999px;padding:3px 9px}
.hx-card.dyk .in{background:linear-gradient(160deg,rgba(255,181,71,.16),rgba(255,181,71,.03));border-color:rgba(255,181,71,.45)}
.hx-card.dyk .yr{color:var(--hx-b);font-size:clamp(18px,2vw,22px);letter-spacing:.14em;text-transform:uppercase}
/* era gates: a ring you fly through */
.hx-gate{position:absolute;left:0;top:0;transform-style:preserve-3d;pointer-events:none}
.hx-gate .ring{position:absolute;left:50%;top:50%;width:min(1200px,150vw);height:min(1200px,150vw);border-radius:50%;transform:translate(-50%,-50%);border:2px solid var(--gc,#30cbdd);box-shadow:0 0 60px var(--gc,#30cbdd),inset 0 0 60px var(--gc,#30cbdd);opacity:.55}
.hx-gate .lbl{position:absolute;left:50%;top:calc(50% - min(600px,75vw) - 10px);transform:translate(-50%,-100%);white-space:nowrap;text-align:center;font:800 clamp(30px,4vw,60px)/1 "Saira Condensed",Inter,sans-serif;color:#fff;text-shadow:0 0 30px var(--gc,#30cbdd);opacity:.8}
.hx-gate .lbl small{display:block;font:600 14px "JetBrains Mono",monospace;letter-spacing:.2em;text-transform:uppercase;color:var(--gc,#30cbdd);margin-bottom:10px}
/* HUD */
.hx-hud{position:absolute;left:0;right:0;top:0;z-index:3;display:flex;justify-content:space-between;align-items:flex-start;padding:18px 24px;pointer-events:none}
.hx-when{font:800 clamp(34px,6vw,84px)/.9 "Saira Condensed",Inter,sans-serif;letter-spacing:-.01em;color:#fff;text-shadow:0 2px 30px rgba(0,0,0,.6);transition:color .6s}
.hx-when small{display:block;font:600 12px "JetBrains Mono",monospace;letter-spacing:.18em;text-transform:uppercase;color:var(--hx-a);margin-top:8px}
.hx-ctl{pointer-events:auto;display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.hx-ctl button{border:1px solid rgba(255,255,255,.25);background:rgba(0,0,0,.35);color:#fff;border-radius:999px;padding:8px 13px;font:600 13px Inter,sans-serif;cursor:pointer;backdrop-filter:blur(6px)}
.hx-ctl button:hover,.hx-ctl button[aria-pressed="true"]{border-color:var(--hx-a);color:var(--hx-a)}
.hx-ctl .hx-play,.hx-ctl .hx-play[aria-pressed="true"],.hx-ctl .hx-play:hover{background:var(--hx-a);border-color:var(--hx-a);color:#04121a;min-width:96px}
.hx-rail{position:absolute;left:24px;right:24px;bottom:18px;z-index:3;display:flex;gap:3px;align-items:flex-end}
.hx-rail button{flex:1;min-width:0;height:34px;border:0;background:none;padding:0;cursor:pointer;position:relative;color:var(--hx-dim);font:600 10px "JetBrains Mono",monospace;letter-spacing:.06em;text-transform:uppercase;text-align:left;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.hx-rail button:before{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;border-radius:3px;background:rgba(255,255,255,.18)}
.hx-rail button i{position:absolute;left:0;bottom:0;height:4px;border-radius:3px;background:var(--hx-a);width:0}
.hx-rail button.on{color:#fff}
.hx-rail span{display:block;padding-bottom:9px}
/* era transition banner */
.hx-era{position:absolute;inset:0;z-index:4;display:grid;place-items:center;text-align:center;pointer-events:none;opacity:0;transition:opacity .7s}
.hx-era.on{opacity:1}
.hx-era .box{max-width:min(760px,88vw);transform:scale(.9);transition:transform 1.2s cubic-bezier(.2,.9,.2,1)}
.hx-era.on .box{transform:none}
.hx-era small{font:600 13px "JetBrains Mono",monospace;letter-spacing:.24em;text-transform:uppercase;color:var(--hx-a)}
.hx-era h2{font:800 clamp(44px,8vw,110px)/.95 "Saira Condensed",Inter,sans-serif!important;letter-spacing:-.01em!important;margin:14px 0 12px!important;color:#fff;text-shadow:0 0 40px var(--hx-a)}
.hx-era .sub{font:600 clamp(14px,1.6vw,18px) "JetBrains Mono",monospace;color:var(--hx-b);margin-bottom:14px}
.hx-era p{font:400 clamp(16px,1.8vw,20px)/1.55 Inter,sans-serif;color:#e6edf0;margin:0 auto;max-width:620px}
.hx-flash{position:absolute;inset:0;z-index:5;background:#fff;opacity:0;pointer-events:none;mix-blend-mode:overlay}
/* intro */
.hx-intro{position:absolute;inset:0;z-index:6;display:grid;place-items:center;text-align:center;background:radial-gradient(ellipse at 50% 50%,#0b0c1c,#020306 75%);transition:opacity 1.6s ease}
.hx:not(.hx-started) .hx-stage,.hx:not(.hx-started) .hx-hud,.hx:not(.hx-started) .hx-rail,.hx:not(.hx-started) .hx-hint{opacity:0}
.hx-stage,.hx-hud,.hx-rail{transition:opacity 1.2s ease}
.hx.hx-banner .hx-stage{opacity:.12}
.hx-intro.gone{opacity:0;pointer-events:none}
.hx-intro .lines{position:relative;height:3.2em;font:300 clamp(22px,3.4vw,40px)/1.3 Inter,sans-serif;color:#e8eef2;width:min(900px,90vw)}
.hx-intro .lines div{position:absolute;inset:0;opacity:0;transform:translateY(14px) scale(.98);filter:blur(6px);transition:opacity 1.1s,transform 1.4s,filter 1.1s}
.hx-intro .lines div.on{opacity:1;transform:none;filter:none}
.hx-intro .lines div.off{opacity:0;transform:translateY(-14px) scale(1.02);filter:blur(6px)}
.hx-intro h1{font:800 clamp(52px,9vw,128px)/.92 "Saira Condensed",Inter,sans-serif!important;letter-spacing:-.015em!important;margin:0!important;opacity:0;transform:scale(1.12);transition:opacity 1.6s,transform 2.4s cubic-bezier(.2,.9,.2,1);color:#fff;text-shadow:0 0 50px rgba(48,203,221,.35)}
.hx-intro h1.on{opacity:1;transform:none}
.hx-intro h1 em{font-style:normal;color:var(--hx-a)}
.hx-intro .go{margin-top:26px;display:flex;gap:10px;justify-content:center;opacity:0;transition:opacity 1s}
.hx-intro .go.on{opacity:1}
.hx-intro .go button{border:1px solid var(--hx-a);background:var(--hx-a);color:#04121a;border-radius:999px;padding:13px 22px;font:800 15px Inter,sans-serif;cursor:pointer}
.hx-intro .go button.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.hx-intro .skip{position:absolute;right:20px;bottom:20px;border:0;background:none;color:var(--hx-dim);font:600 12px "JetBrains Mono",monospace;letter-spacing:.14em;text-transform:uppercase;cursor:pointer}
.hx-hint{position:absolute;left:50%;bottom:62px;transform:translateX(-50%);z-index:3;font:600 11px "JetBrains Mono",monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--hx-dim);pointer-events:none;transition:opacity .8s}
/* list view (also the no-JS / reduced-motion version and what search engines read) */
.hx-list{max-width:900px;margin:0 auto;padding:40px 20px}
.hx-list h2{font:800 34px/1.05 "Saira Condensed",Inter,sans-serif!important;letter-spacing:0!important;margin:42px 0 4px!important}
.hx-list .es{font:600 12px "JetBrains Mono",monospace;letter-spacing:.14em;text-transform:uppercase;color:#30cbdd;margin:0 0 14px}
.hx-list ol{list-style:none;margin:0;padding:0;border-left:2px solid rgba(48,203,221,.35)}
.hx-list li{padding:12px 0 12px 18px;position:relative}
.hx-list li:before{content:"";position:absolute;left:-6px;top:20px;width:10px;height:10px;border-radius:50%;background:#30cbdd}
.hx-list li b{display:block;font:700 13px "JetBrains Mono",monospace;color:#ffb547;letter-spacing:.06em}
.hx-list li strong{display:block;color:#fff;font:700 17px Inter,sans-serif;margin:2px 0 4px}
.hx-list li p{margin:0;color:#c3cbd0;line-height:1.55}
.hx-list li a{color:#30cbdd;font-size:13px;margin-right:10px}
.hx-mode-list .hx{display:none}
.hx-listbar{display:flex;justify-content:center;gap:10px;padding:16px}
@media (max-width:700px){.hx-ctl [data-speed],.hx-ctl [data-hx=prev],.hx-ctl [data-hx=next]{display:none}.hx-when{font-size:34px}.hx-hud{padding:14px}.hx-ctl button{padding:7px 10px;font-size:12px}.hx-rail{left:12px;right:12px}.hx-rail span{display:none}.hx-card .in{padding:18px}.hx-hint{bottom:44px}}
@media (prefers-reduced-motion:reduce){.hx-intro .lines div,.hx-intro h1,.hx-era .box{transition:none}}