/* Theme Name: NASA App Guide
Version: 1.0
Text Domain: nasa-guide
*/
:root{color-scheme:dark;--bg:#0b1015;--panel:#131c25;--text:#eef3f8;--muted:#a6b3c0;--accent:#8caeff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--bg);color:var(--text);font:17px/1.65 system-ui,-apple-system,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.wrap{width:min(1160px,calc(100% - 48px));margin:auto}.skip{position:absolute;top:-100px}.skip:focus{top:10px;z-index:5;background:#000;padding:10px}header{border-bottom:1px solid #ffffff16}.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:88px}.brand{font-weight:800;font-size:24px;letter-spacing:-1px;display:flex;align-items:center;gap:12px}.mark{display:grid;place-items:center;width:38px;height:38px;background:var(--accent);color:#0b1015;border-radius:12px;font-size:18px;letter-spacing:-2px}.navlinks{display:flex;gap:28px;font-size:14px}.hero{display:grid;grid-template-columns:1.2fr 1fr;gap:64px;align-items:center;padding:100px 0 76px}.eyebrow{font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--accent);font-weight:700}.hero h1{font-size:clamp(55px,6vw,88px);line-height:1.05;letter-spacing:-5px;margin:22px 0}.hero h1 span{display:block;color:var(--accent)}.lead{font-size:20px;color:var(--muted);max-width:560px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 16px}.button{display:inline-flex;justify-content:center;align-items:center;min-height:50px;padding:12px 22px;border-radius:9px;border:1px solid #ffffff30;font-family:inherit;font-weight:600;font-size:14px;line-height:1.3;background:transparent;color:var(--text);cursor:pointer}.button.primary{background:var(--accent);border-color:var(--accent);color:#091018}.button:disabled{opacity:.55;cursor:default}.small{font-size:13px;color:var(--muted)}.mock{max-width:400px;width:100%;justify-self:center;border:1px solid #ffffff24;border-radius:24px;background:linear-gradient(150deg,#1c2935,#0e151d);padding:30px;box-shadow:0 40px 100px #0006;transform:rotate(2deg)}.mocktop{display:flex;justify-content:space-between;font-size:13px;color:var(--muted)}.power{width:102px;height:102px;border:1px solid var(--accent);border-radius:50%;display:grid;place-items:center;font-size:42px;color:var(--accent);margin:38px auto 16px;background:#ffffff05}.mock h3{text-align:center;margin:0}.server{margin-top:24px;padding:16px;background:#ffffff06;border:1px solid #ffffff12;border-radius:12px;display:flex;justify-content:space-between;align-items:center;font-size:14px}.dot{width:8px;height:8px;border-radius:50%;display:inline-block;background:var(--accent);margin-right:8px}.strip{border-top:1px solid #ffffff18;border-bottom:1px solid #ffffff18;display:flex;gap:36px;padding:22px 0;color:var(--muted);font-size:14px}.strip strong{color:var(--text)}section{padding:76px 0;border-bottom:1px solid #ffffff12}h2{font-size:clamp(30px,4vw,44px);letter-spacing:-1.5px;line-height:1.15;margin:15px 0 22px}h3{line-height:1.3}.sectionhead{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}.sectionhead p{color:var(--muted);max-width:400px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.card{background:var(--panel);border:1px solid #ffffff12;border-radius:16px;padding:28px}.card p{color:var(--muted);font-size:15px}.num{color:var(--accent);font:500 14px monospace}.card h3{font-size:21px}.card.link:hover{border-color:var(--accent);transform:translateY(-3px)}.card.link{transition:transform .2s,border-color .2s}.tag{font-size:11px;text-transform:uppercase;letter-spacing:1.5px;color:var(--accent)}.arrow{display:block;color:var(--accent);margin-top:24px}.download{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}.note{border-left:2px solid var(--accent);padding:6px 0 6px 22px;color:var(--muted)}details{border-bottom:1px solid #ffffff1c;padding:22px 0}summary{cursor:pointer;font-weight:600}details p{color:var(--muted);max-width:850px}.cta{background:var(--panel);border-radius:20px;padding:48px;display:flex;align-items:center;justify-content:space-between;gap:30px}.cta h2{margin-top:0}.footer{padding:34px 0;color:var(--muted);font-size:13px;display:flex;justify-content:space-between;gap:32px}.article{max-width:780px;margin:auto;padding:64px 0}.article h1{font-size:clamp(34px,5vw,55px);line-height:1.15;letter-spacing:-2px}.article h2{font-size:28px;margin-top:45px}.article p,.article li{color:#c4ced8}.article a{color:var(--accent);text-decoration:underline}.article li{margin:12px 0}.crumb{font-size:13px;color:var(--muted)}.notice{padding:16px 20px;background:var(--panel);border-radius:10px}.article .related{margin-top:50px}.article .related a{display:block;margin:12px 0}.mobile-menu{display:none}@media(max-width:800px){.hero{grid-template-columns:1fr;padding:55px 0;gap:36px}.hero h1{letter-spacing:-3px}.mock{transform:none;max-width:360px}.grid{grid-template-columns:1fr}.download{grid-template-columns:1fr;gap:24px}.sectionhead,.cta{display:block}.sectionhead p{max-width:none}.strip{gap:12px;flex-wrap:wrap}.navlinks{gap:14px;font-size:12px;flex-wrap:wrap;justify-content:flex-end}.nav{gap:14px}.brand{font-size:20px}.wrap{width:calc(100% - 32px)}section{padding:52px 0}.cta{padding:26px}.footer{flex-direction:column;gap:8px}.hero h1{font-size:60px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card.link{transition:none}}
/* Readability for search landing headings and long subscription formats. */
.hero h1{font-size:clamp(36px,5vw,68px);letter-spacing:-2px;overflow-wrap:anywhere}.article code{overflow-wrap:anywhere}.article-toc{padding:20px 24px;background:var(--panel);border-radius:12px;margin:28px 0}.article-toc ul{margin:12px 0 0;padding-left:20px}.article-toc li{margin:6px 0}.article-toc a{font-size:15px}.navlinks a{padding:8px 0}.footer .button{align-self:flex-start}@media(max-width:800px){.hero h1{font-size:clamp(34px,8vw,56px);letter-spacing:-1.5px}}

/* Happ sales layout, October 2026. */
header{position:relative;z-index:10;background:#0b1015}.hero{grid-template-columns:1.3fr 1fr;gap:70px;padding:82px 0 68px}.hero h1{font-size:clamp(42px,4.5vw,66px);line-height:1.08;letter-spacing:-2.5px}.hero .lead{max-width:580px;font-size:19px;line-height:1.65}.hero .actions{margin-top:28px}.button{min-height:48px;transition:background .2s,box-shadow .2s,transform .2s}.button.primary{box-shadow:0 5px 22px #8caeff30}.button.primary:hover{color:#091018;background:#afc6ff;box-shadow:0 7px 28px #8caeff48;transform:translateY(-1px)}.hero-caption{max-width:480px}.hero-benefits{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px;font-size:12px;color:#bdc9d6}.hero-benefits span{border:1px solid #ffffff18;border-radius:30px;padding:6px 11px}.offer-card{background:radial-gradient(ellipse at top right,#8caeff19,transparent 65%),#131c25;border:1px solid #8caeff40;border-radius:24px;padding:34px;box-shadow:0 22px 70px #0003}.offer-label{display:flex;align-items:center;gap:9px;color:var(--accent);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:1px}.status-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px #8caeff70}.offer-card h2{font-size:26px;letter-spacing:-.7px;margin:22px 0 0}.offer-price{font-size:86px;font-weight:750;line-height:1.25;letter-spacing:-4px}.offer-price span{font-size:44px;color:var(--accent)}.offer-card p{color:#b9c5d2;font-size:15px;margin:8px 0 22px}.offer-list{list-style:none;margin:0;padding:0;border-top:1px solid #ffffff12}.offer-list li{padding-top:15px;font-size:14px}.offer-list li:before{content:'✓';color:var(--accent);margin-right:10px}.offer-more{display:flex;justify-content:space-between;margin-top:26px;font-size:14px;color:var(--accent)}.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.plan{display:flex;flex-direction:column;padding:25px 22px;background:var(--panel);border:1px solid #ffffff14;border-radius:16px}.plan-featured{border-color:#8caeff80;background:linear-gradient(160deg,#22324b,#131c25)}.plan-type{font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--accent)}.plan h3{font-size:17px;margin:15px 0}.plan-price{font-size:36px;font-weight:750;letter-spacing:-1.5px;white-space:nowrap}.plan-price span{font-size:23px;color:var(--muted)}.plan p{font-size:14px;color:var(--muted);min-height:48px}.plan-devices{font-size:13px;color:#c3cdda;margin:4px 0 25px}.plan .button{font-size:12px;padding:12px 9px;width:100%;margin-top:auto}.renewal{max-width:900px;margin-top:23px}.mobile-nav{display:none}.navlinks{gap:22px}.article .notice .button{text-decoration:none}.article .notice{margin-top:42px}.hero h1 span{display:inline} .hero h1 br+span{display:block}
@media(max-width:1050px){.plans{grid-template-columns:repeat(2,1fr)}.hero{gap:30px}.offer-card{padding:28px}.navlinks{gap:14px}}
@media(max-width:800px){.nav{min-height:72px;position:relative}.navlinks{display:none}.mobile-nav{display:block;border:0;padding:0}.mobile-nav summary{display:flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:12px;border:1px solid #ffffff24;border-radius:10px;list-style:none}.mobile-nav summary::-webkit-details-marker{display:none}.mobile-nav summary span{display:block;height:2px;background:#eef3f8;width:18px}.mobile-nav nav{position:absolute;top:64px;left:0;right:0;background:#131c25;padding:12px;border:1px solid #ffffff25;border-radius:14px;box-shadow:0 20px 40px #0006}.mobile-nav nav a{display:block;padding:13px 16px;font-size:15px}.hero{grid-template-columns:1fr;padding:42px 0 34px;gap:30px}.hero h1{font-size:clamp(38px,9.8vw,56px);letter-spacing:-1.7px;margin:18px 0}.hero .lead{font-size:17px;line-height:1.6}.hero .actions{gap:10px;margin:23px 0 12px}.hero .actions .button{width:100%;min-height:50px}.hero-benefits{gap:7px;margin-top:20px;font-size:11px}.hero-benefits span{padding:5px 9px}.hero-caption{font-size:12px}.offer-card{padding:26px}.offer-price{font-size:70px}.strip{font-size:12px;gap:9px 16px}.plans{gap:12px}.plan{padding:20px 16px}.plan .button{font-size:12px}.sectionhead{margin-bottom:25px}.sectionhead p{font-size:15px}.card{padding:24px}.nav .brand{font-size:23px}.footer .button{width:auto}}
@media(max-width:480px){.plans{grid-template-columns:1fr}.plan p{min-height:0}.plan{display:grid;grid-template-columns:1fr auto;gap:0 12px}.plan-type,.plan h3,.plan p,.plan-devices,.plan .button{grid-column:1/-1}.plan-price{grid-column:1/-1}.plan .button{min-height:46px;font-size:14px}.plan h3{margin:10px 0}.offer-list li{font-size:13px}}
@media(prefers-reduced-motion:reduce){.button{transition:none}.button.primary:hover{transform:none}}

.whitelist-badge{display:inline-flex;align-items:center;gap:9px;padding:8px 13px;margin-top:22px;border:1px solid #8caeff55;border-radius:30px;background:#8caeff12;color:#bbceff;font-size:13px;font-weight:650}.whitelist-badge+.hero h1{margin-top:16px}.hero h1{font-size:clamp(38px,4.1vw,60px)}@media(max-width:800px){.whitelist-badge{margin-top:17px;font-size:12px}.hero h1{font-size:clamp(34px,8.7vw,52px)}}


/* Smooth display surface without stacked hard edges. */
.offer-card{position:relative;isolation:isolate;transform:none;border:1px solid #71859a38;border-radius:26px;background:radial-gradient(ellipse at 8% 0%,#a7c6e30b,transparent 65%),linear-gradient(145deg,#1d2c38,#111b24);box-shadow:inset 0 1px 0 #e4f0ff0b,0 16px 40px #00000038,0 3px 10px #00000024}.offer-card:before{content:'';position:absolute;inset:0;z-index:-1;pointer-events:none;border-radius:inherit;background:linear-gradient(125deg,#d8eaff05,transparent 45%)}@media(max-width:800px){.offer-card{transform:none;width:100%;box-shadow:inset 0 1px 0 #e4f0ff0b,0 12px 30px #00000032,0 2px 8px #00000020}}

/* Tilt the smooth surface without adding hard offset contours. */
.offer-card{transform:perspective(1400px) rotateY(-7deg) rotateZ(2deg);transform-origin:center center;backface-visibility:hidden;box-shadow:inset 0 1px 0 #e4f0ff0b,12px 24px 48px #00000045,3px 7px 18px #00000020}@media(max-width:800px){.offer-card{width:calc(100% - 12px);transform:perspective(1400px) rotateY(-4deg) rotateZ(1deg);box-shadow:inset 0 1px 0 #e4f0ff0b,8px 17px 32px #0000003d}}

/* Let the compositor antialias the tilted silhouette instead of a hard border. */
.offer-card{border:0;padding:35px;outline:1px solid transparent;background:transparent;box-shadow:none;overflow:visible;filter:drop-shadow(10px 22px 24px #00000042)}.offer-card:before{inset:0;z-index:-1;border-radius:inherit;background:radial-gradient(ellipse at 8% 0%,#a7c6e30b,transparent 65%),linear-gradient(145deg,#1d2c38,#111b24);box-shadow:inset 0 0 0 1px #71859a30,inset 0 1px 0 #e4f0ff0b;filter:blur(.45px)}@media(max-width:800px){.offer-card{padding:27px;box-shadow:none;filter:drop-shadow(7px 15px 18px #00000038)}}

/* Feather the complete silhouette uniformly, including all four corners. */
.offer-card{outline:none;backface-visibility:visible;filter:drop-shadow(10px 22px 24px #00000042)}.offer-card:before{inset:-1px;border-radius:27px;box-shadow:inset 0 0 0 1px #71859a22;filter:blur(.8px);-webkit-mask-image:linear-gradient(#000,#000);mask-image:linear-gradient(#000,#000)}@media(max-width:800px){.offer-card{filter:drop-shadow(7px 15px 18px #00000038)}}

/* Keep type on the page plane; only the display surface is transformed. */
.offer-card{transform:none;filter:none;backface-visibility:visible;box-shadow:none}.offer-card:before{transform:perspective(1400px) rotateY(-7deg) rotateZ(2deg);transform-origin:center;filter:blur(.8px);box-shadow:inset 0 0 0 1px #71859a22,12px 24px 48px #00000045,3px 7px 18px #00000020}.offer-card>*{filter:none;transform:none;text-shadow:none}@media(max-width:800px){.offer-card{transform:none;filter:none;box-shadow:none}.offer-card:before{transform:perspective(1400px) rotateY(-4deg) rotateZ(1deg);box-shadow:inset 0 0 0 1px #71859a22,8px 17px 32px #0000003d}}

/* Use a 2D tilt for the full card: no perspective rasterization of type. */
.offer-card{transform:rotate(2deg);filter:none;backface-visibility:visible}.offer-card:before{transform:none;filter:blur(.65px);box-shadow:inset 0 0 0 1px #71859a22,12px 24px 48px #00000045,3px 7px 18px #00000020}.offer-card>*{filter:none;text-shadow:none}@media(max-width:800px){.offer-card{transform:rotate(1deg);filter:none}.offer-card:before{transform:none;box-shadow:inset 0 0 0 1px #71859a22,8px 17px 32px #0000003d}}

/* Asymmetric lift: the right edge floats farther above the page. */
.offer-card:before{box-shadow:inset -1px 0 0 #a9c8e525,inset 0 1px 0 #e4f0ff0b,5px 8px 15px #00000020,24px 26px 42px #00000052}.offer-card:after{content:'';position:absolute;z-index:-2;pointer-events:none;top:12%;right:-27px;bottom:3%;width:42%;border-radius:45%;background:linear-gradient(90deg,transparent,#00000080);filter:blur(20px);transform:skewY(5deg);opacity:.72}@media(max-width:800px){.offer-card:before{box-shadow:inset -1px 0 0 #a9c8e520,inset 0 1px 0 #e4f0ff0b,4px 7px 12px #00000020,14px 20px 30px #00000048}.offer-card:after{right:-10px;width:36%;filter:blur(14px);opacity:.55}}

/* A visible lifted right edge: perspective on the surface, crisp 2D type. */
.offer-card{transform:rotate(2deg)}.offer-card:before{transform:perspective(1100px) rotateY(-13deg);transform-origin:left center;background:linear-gradient(100deg,#182630 0%,#1d2e3c 76%,#253a49 100%);filter:blur(.65px);box-shadow:inset -2px 0 3px #c0d9ed40,inset 0 1px 0 #e4f0ff14,25px 16px 32px #00000090,8px 6px 14px #00000050}.offer-card:after{top:8%;right:-20px;bottom:-2%;width:35%;background:radial-gradient(ellipse at center,#000000c0,transparent 72%);filter:blur(13px);transform:skewY(5deg);opacity:1}@media(max-width:800px){.offer-card{transform:rotate(1deg)}.offer-card:before{transform:perspective(1000px) rotateY(-9deg);box-shadow:inset -2px 0 3px #c0d9ed35,16px 12px 25px #00000080,5px 5px 12px #00000045}.offer-card:after{right:-10px;filter:blur(11px)}}