:root{--bg-0:#05040d;--bg-1:#0b0920;--bg-2:#131030;--surface:#ffffff0b;--surface-strong:#ffffff14;--surface-hover:#ffffff1f;--border:#ffffff1f;--border-strong:#ffffff38;--text-1:#f3f1ff;--text-2:#c3bfe8;--text-3:#8d88b5;--accent-1:#7c5cff;--accent-2:#47bfff;--accent-3:#ff5c9d;--glow:#7c5cff59;--radius-lg:28px;--radius-md:18px;--radius-sm:12px;--font-display:"Space Grotesk", "Inter", system-ui, sans-serif;--font-body:"Inter", system-ui, -apple-system, sans-serif;--ease:cubic-bezier(.22, 1, .36, 1);--header-h:76px}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth}body{min-height:100vh;color:var(--text-1);font-family:var(--font-body);background:radial-gradient(1200px 800px at 80% -10%, #7c5cff24, transparent 60%), radial-gradient(1000px 700px at 10% 110%, #47bfff1a, transparent 55%), linear-gradient(180deg, var(--bg-0), var(--bg-1) 45%, var(--bg-0));-webkit-font-smoothing:antialiased;background-attachment:fixed;margin:0;font-size:17px;line-height:1.7;overflow-x:hidden}#stars{z-index:0;pointer-events:none;position:fixed;inset:0}.nebula{filter:blur(90px);opacity:.5;z-index:0;pointer-events:none;border-radius:50%;animation:26s ease-in-out infinite alternate nebula-drift;position:fixed}.nebula--a{background:radial-gradient(circle at 30% 30%,#7c5cff8c,#0000 70%);width:520px;height:520px;top:-140px;right:-120px}.nebula--b{background:radial-gradient(circle at 60% 40%,#47bfff59,#0000 70%);width:640px;height:640px;animation-duration:34s;animation-delay:-12s;bottom:-220px;left:-180px}@keyframes nebula-drift{0%{transform:translate(0,0)scale(1)}to{transform:translate(-40px,30px)scale(1.12)}}.site-header{z-index:50;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);border-bottom:1px solid var(--border);background:#0705128c;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;padding:14px clamp(20px,4vw,56px);display:flex;position:sticky;top:0}.brand{color:var(--text-1);align-items:center;gap:12px;text-decoration:none;transition:opacity .2s;display:inline-flex}.brand:hover{opacity:.85}.brand__logo{color:var(--accent-2);flex-shrink:0}.brand__text{flex-direction:column;line-height:1.15;display:flex}.brand__name{font-family:var(--font-display);letter-spacing:.02em;background:linear-gradient(90deg, var(--text-1), var(--accent-2));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.05rem;font-weight:700}.brand__sub{color:var(--text-3);letter-spacing:.04em;text-transform:uppercase;font-size:.72rem}.controls{align-items:center;gap:10px;display:flex}.date-field input{font-family:var(--font-body);color:var(--text-1);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);outline:none;padding:9px 12px;font-size:.9rem;transition:border-color .2s,background .2s}.date-field 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16px;font-size:.9rem;font-weight:500;display:inline-flex}.btn:hover{background:var(--surface-hover);border-color:var(--border-strong);transform:translateY(-1px)}.btn:active{transform:translateY(0)scale(.98)}.btn--primary{background:linear-gradient(135deg, var(--accent-1), #9d6bff);box-shadow:0 8px 24px -8px var(--glow);border:none}.btn--primary:hover{filter:brightness(1.1);box-shadow:0 12px 30px -8px var(--glow)}.site-main{z-index:1;max-width:980px;margin:0 auto;padding:clamp(40px,8vw,90px) clamp(20px,5vw,40px) 60px;position:relative}.hero{text-align:center;margin-bottom:clamp(40px,7vw,72px)}.hero__eyebrow{letter-spacing:.22em;text-transform:uppercase;color:var(--accent-2);align-items:center;gap:8px;margin:0 0 18px;font-size:.78rem;font-weight:600;display:inline-flex}.hero__eyebrow:before,.hero__eyebrow:after{content:"";background:linear-gradient(90deg, transparent, var(--accent-2));width:26px;height:1px}.hero__eyebrow:after{background:linear-gradient(90deg, var(--accent-2), transparent)}.hero__title{font-family:var(--font-display);letter-spacing:-.02em;animation:rise-in .9s var(--ease) both;margin:0 0 22px;font-size:clamp(2.2rem,6vw,4.2rem);font-weight:700;line-height:1.08}.gradient-text{background:linear-gradient(100deg, var(--accent-2) 5%, var(--accent-1) 50%, var(--accent-3) 95%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.hero__sub{max-width:640px;color:var(--text-2);animation:rise-in .9s var(--ease) .12s both;margin:0 auto;font-size:clamp(1rem,1.6vw,1.15rem)}@keyframes rise-in{0%{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}.apod__card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);animation:card-in .7s var(--ease) both;overflow:hidden;box-shadow:0 30px 80px -30px #000c,inset 0 1px #ffffff0f}@keyframes 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14px;font-size:1rem;font-weight:600}.apod__explanation{color:var(--text-2);margin:0;font-size:1.02rem;line-height:1.85}.apod__keywords{flex-wrap:wrap;gap:8px;margin:22px 0 0;padding:0;list-style:none;display:flex}.apod__keywords li{letter-spacing:.03em;color:var(--accent-2);background:#47bfff14;border:1px solid #47bfff40;border-radius:999px;padding:5px 13px;font-size:.78rem;font-weight:500}.skeleton{padding:2px}.skeleton__media{aspect-ratio:16/9;border-radius:var(--radius-md);background:#ffffff0a}.skeleton__meta{padding:26px clamp(10px,3vw,30px) 30px}.skeleton__line{background:#ffffff0f;border-radius:8px;height:16px;margin-bottom:14px}.skeleton__line--title{width:62%;height:30px;margin-bottom:18px}.skeleton__line--date{width:22%}.skeleton__line--short{width:48%}.shimmer{position:relative;overflow:hidden}.shimmer:after{content:"";background:linear-gradient(90deg,#0000,#ffffff17,#0000);animation:1.6s infinite shimmer;position:absolute;inset:0;transform:translate(-100%)}@keyframes 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dashed var(--border-strong);text-decoration:none;transition:color .2s}.site-footer a:hover{color:var(--accent-2)}.site-footer__nav{justify-content:center;gap:10px;margin-top:10px;display:flex}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}[hidden]{display:none!important}@media (width<=760px){.site-header{gap:10px;padding:12px 16px}.brand__sub{display:none}.controls{justify-content:center;width:100%}.btn--ghost span{display:none}.btn--ghost{padding:9px 12px}.apod__head{flex-direction:column}.apod__actions{align-self:flex-end;margin-top:-8px}.apod__media{margin:0 14px}.apod__body{padding:22px 18px 28px}.lightbox{padding:16px}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}html{scroll-behavior:auto}}