:root{--bg:#03050a;--panel:rgba(7,11,19,.78);--line:rgba(255,255,255,.12);--text:#f5f7fb;--muted:#9aa5b8;--accent:#7cf0ce;--blue:#86a9ff;--shadow:0 26px 90px rgba(0,0,0,.45)}
*{box-sizing:border-box}html{background:var(--bg);color-scheme:dark}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;overflow-x:hidden}button,input{font:inherit}.app-shell{min-height:100vh;background:var(--bg)}
.topbar{height:72px;padding:0 22px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.075);position:relative;z-index:30;background:rgba(3,5,10,.86);backdrop-filter:blur(18px)}.brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none}.brand-mark{width:38px;height:38px;border:1px solid rgba(124,240,206,.42);border-radius:50%;display:grid;place-items:center;font-weight:900;box-shadow:inset 0 0 22px rgba(124,240,206,.08),0 0 22px rgba(124,240,206,.05)}.brand-copy{display:flex;flex-direction:column;line-height:1}.brand-copy strong{font-size:17px;letter-spacing:.29em}.brand-copy small{margin-top:6px;font-size:9px;color:#929cac}.top-actions{display:flex;gap:8px}.icon-btn,.mini-btn{border:1px solid var(--line);background:rgba(255,255,255,.045);color:#fff;border-radius:11px;min-width:40px;height:40px;cursor:pointer}.icon-btn:hover,.mini-btn:hover{background:rgba(255,255,255,.1)}
.experience{position:relative;height:min(850px,calc(100vh - 72px));min-height:650px;overflow:hidden;background:#04070d}.space-canvas,.sim-canvas{position:absolute;inset:0;width:100%;height:100%;display:block}.sim-canvas{pointer-events:none}.scene-vignette{position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(2,4,8,.92) 0%,rgba(2,4,8,.52) 31%,rgba(2,4,8,.08) 56%,rgba(2,4,8,.05) 100%),linear-gradient(0deg,rgba(2,4,8,.55),transparent 28%);z-index:2}
.hero-overlay{position:absolute;z-index:6;left:7vw;top:47%;transform:translateY(-50%);width:min(620px,44vw);transition:.55s ease}.hero-overlay.hidden{opacity:0;transform:translate(-36px,-50%);pointer-events:none}.eyebrow{font-size:11px;color:var(--accent);font-weight:900;letter-spacing:.22em}.hero-overlay h1{margin:15px 0 18px;font-size:clamp(50px,6.6vw,92px);line-height:.88;letter-spacing:-.058em}.hero-overlay h1 span{color:#f1f4fa}.hero-overlay p{max-width:590px;margin:0;color:#c3cad7;font-size:16px;line-height:1.72}.hero-overlay p b{color:#fff}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:27px}.primary-btn,.ghost-btn{height:48px;padding:0 19px;border-radius:999px;border:1px solid var(--line);cursor:pointer;font-weight:750}.primary-btn{background:#f4f6fa;color:#05070b;border-color:transparent}.primary-btn span{margin-left:8px}.ghost-btn{background:rgba(255,255,255,.045);color:#fff}.hero-hint{margin-top:18px;color:#7b8799;font-size:11px;display:flex;align-items:center;gap:8px}.hero-hint>span{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 15px var(--accent)}
.side-panel{position:absolute;z-index:10;right:22px;top:22px;width:min(330px,calc(100% - 44px));padding:18px;border:1px solid var(--line);border-radius:19px;background:var(--panel);backdrop-filter:blur(20px);box-shadow:var(--shadow);transform:translateX(calc(100% + 45px));transition:.45s ease}.side-panel.visible{transform:none}.panel-kicker{color:var(--accent);font-size:9px;font-weight:900;letter-spacing:.18em}.side-panel h2{margin:7px 0 8px;font-size:23px}.side-panel>p{margin:0 0 14px;color:var(--muted);font-size:12px;line-height:1.6}.fact-grid{display:grid;grid-template-columns:1fr 1fr;gap:7px}.fact{padding:10px;border-radius:11px;border:1px solid rgba(255,255,255,.07);background:rgba(255,255,255,.035)}.fact span{display:block;font-size:8px;color:#7c8799;text-transform:uppercase;letter-spacing:.1em}.fact b{display:block;margin-top:4px;font-size:12px}.connection-box{margin-top:12px;padding-top:11px;border-top:1px solid rgba(255,255,255,.08)}.connection-box>span{font-size:9px;color:#7c8799;text-transform:uppercase;letter-spacing:.1em}.connection-list{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}.connection-list i{font-style:normal;padding:5px 7px;border-radius:999px;background:rgba(134,169,255,.09);border:1px solid rgba(134,169,255,.18);font-size:9px;color:#c7d5ff}
.control-stack{position:absolute;z-index:11;left:20px;top:20px;display:flex;flex-direction:column;gap:7px}.control-btn{width:88px;display:flex;gap:8px;align-items:center;padding:7px;border-radius:12px;border:1px solid var(--line);background:rgba(5,8,14,.68);backdrop-filter:blur(14px);color:#fff;cursor:pointer}.control-btn b{width:23px;height:23px;border-radius:7px;background:rgba(255,255,255,.06);display:grid;place-items:center}.control-btn span{font-size:9px;color:#b8c0ce}.control-btn[aria-pressed="true"]{border-color:rgba(124,240,206,.35);background:rgba(124,240,206,.09)}
.scale-indicator{position:absolute;z-index:11;left:20px;bottom:22px;width:138px}.scale-indicator>span{font-size:7px;color:#697486;letter-spacing:.14em}.scale-indicator strong{display:block;margin:4px 0 7px;font-size:11px}.scale-bar{height:3px;border-radius:999px;background:rgba(255,255,255,.1)}.scale-bar i{display:block;height:100%;width:10%;border-radius:inherit;background:linear-gradient(90deg,var(--blue),var(--accent));transition:.35s ease}
.mode-dock{position:absolute;z-index:12;left:50%;bottom:111px;transform:translateX(-50%);display:flex;gap:5px;max-width:calc(100% - 46px);overflow-x:auto;padding:6px;border-radius:15px;border:1px solid var(--line);background:rgba(4,7,12,.76);backdrop-filter:blur(18px);scrollbar-width:none}.mode-dock::-webkit-scrollbar{display:none}.mode-chip{border:0;background:transparent;color:#8e99ab;padding:9px 10px;border-radius:10px;font-size:10px;white-space:nowrap;cursor:pointer;display:flex;align-items:center;gap:6px}.mode-chip.active{color:#ddfff4;background:rgba(124,240,206,.1);box-shadow:inset 0 0 0 1px rgba(124,240,206,.18)}.mode-chip:hover{color:#fff;background:rgba(255,255,255,.05)}
.timeline-card{position:absolute;z-index:12;left:50%;bottom:18px;transform:translateX(-50%);width:min(720px,calc(100% - 46px));padding:11px 14px 9px;border:1px solid var(--line);border-radius:16px;background:rgba(4,7,12,.8);backdrop-filter:blur(18px)}.timeline-head{display:flex;align-items:center;justify-content:space-between;gap:10px}.timeline-head>div:first-child span{display:block;font-size:8px;color:#6f788a;letter-spacing:.15em}.timeline-head strong{font-size:12px}.timeline-tools{display:flex;gap:6px}.mini-btn{height:29px;min-width:33px;border-radius:8px;font-size:9px}.mini-btn.now{font-weight:800}.time-range{width:100%;appearance:none;height:3px;margin:11px 0 7px;border-radius:99px;background:linear-gradient(90deg,var(--accent),rgba(255,255,255,.13));outline:none}.time-range::-webkit-slider-thumb{appearance:none;width:14px;height:14px;border-radius:50%;background:#fff;box-shadow:0 0 0 5px rgba(124,240,206,.14);cursor:pointer}.time-range::-moz-range-thumb{width:14px;height:14px;border:0;border-radius:50%;background:#fff}.timeline-ticks{display:flex;justify-content:space-between;color:#566173;font-size:6px;letter-spacing:.08em}
.toast{position:absolute;z-index:40;left:50%;top:18px;transform:translate(-50%,-15px);opacity:0;pointer-events:none;transition:.22s;padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:rgba(5,8,14,.9);font-size:10px;color:#dce3ef}.toast.show{opacity:1;transform:translate(-50%,0)}
.story-strip{max-width:1180px;margin:0 auto;padding:32px 24px 48px;display:grid;grid-template-columns:repeat(5,1fr);gap:13px}.story-strip article{display:flex;gap:11px;padding:15px 3px;border-top:1px solid rgba(255,255,255,.1)}.story-strip article>span{font-size:9px;color:#586376}.story-strip b{font-size:12px}.story-strip p{margin:5px 0 0;color:#788496;font-size:10px;line-height:1.5}
.help-dialog{width:min(520px,calc(100% - 28px));padding:0;border:1px solid var(--line);border-radius:20px;background:#090d15;color:#fff;box-shadow:var(--shadow)}.help-dialog::backdrop{background:rgba(0,0,0,.68);backdrop-filter:blur(7px)}.help-dialog form{padding:24px;position:relative}.help-dialog h2{margin:9px 0 12px;font-size:28px}.help-dialog ul{padding-left:20px;color:#bdc6d4;line-height:1.8}.dialog-close{position:absolute;right:13px;top:13px;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;font-size:20px}.dialog-note{font-size:10px;color:#717c8d;border-top:1px solid rgba(255,255,255,.08);padding-top:11px}
@media(max-width:900px){.hero-overlay{left:24px;width:min(560px,68vw)}.hero-overlay h1{font-size:58px}.side-panel{top:auto;bottom:188px;right:15px;width:280px}.control-stack{left:14px;top:14px}.control-btn{width:43px;height:43px;padding:8px}.control-btn span{display:none}.scale-indicator{display:none}.story-strip{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.topbar{height:64px;padding:0 13px}.brand-copy small{display:none}.experience{height:760px;min-height:760px}.scene-vignette{background:linear-gradient(0deg,rgba(2,4,8,.82) 0%,rgba(2,4,8,.18) 42%,rgba(2,4,8,.08) 100%)}.hero-overlay{left:18px;right:18px;top:39%;width:auto}.hero-overlay h1{font-size:48px}.hero-overlay p{font-size:13px}.side-panel{left:13px;right:13px;bottom:190px;width:auto;max-height:220px;overflow:auto}.control-stack{flex-direction:row;left:13px;right:13px}.mode-dock{left:13px;right:13px;transform:none;max-width:none;bottom:107px}.timeline-card{bottom:13px;width:calc(100% - 26px)}.timeline-ticks span:nth-child(2),.timeline-ticks span:nth-child(4){display:none}.story-strip{grid-template-columns:1fr;padding:25px 17px 40px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}