:root{--navy:#061722;--panel:#0b2634;--panel2:#0e3445;--cyan:#63e6ff;--orange:#ff6b2c;--ice:#e8fbff;--line:#285064;--muted:#8eb0be;--mono:"Space Mono",monospace;--thai:"IBM Plex Sans Thai",sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--navy);color:var(--ice);font-family:var(--thai);line-height:1.55}button,a{font:inherit}button{color:inherit}a{color:inherit}img{display:block;max-width:100%}.demo-notice{display:flex;justify-content:center;gap:18px;padding:7px 16px;background:var(--orange);color:#111;font-size:11px;font-weight:600;text-align:center}.demo-notice span{font-family:var(--mono);font-weight:700}.site-header{position:sticky;z-index:20;top:0;display:flex;align-items:center;justify-content:space-between;min-height:70px;padding:10px clamp(18px,4vw,60px);background:rgba(6,23,34,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.brand{display:flex;gap:12px;align-items:center;text-decoration:none}.brand-signal{position:relative;width:38px;height:38px;border:2px solid var(--cyan)}.brand-signal:before,.brand-signal:after{content:"";position:absolute;background:var(--cyan)}.brand-signal:before{width:22px;height:2px;left:6px;top:16px;box-shadow:0 -7px 0 var(--cyan),0 7px 0 var(--cyan)}.brand-signal:after{width:2px;height:34px;left:16px;top:0;transform:rotate(45deg)}.brand strong,.brand small{display:block}.brand strong{font-size:18px}.brand small{color:var(--muted);font:700 8px/1.2 var(--mono)}nav{display:flex;align-items:center;gap:24px}nav a{font-size:12px;text-decoration:none}.header-cta{padding:9px 14px;border:1px solid var(--cyan);color:var(--cyan)}.hero{position:relative;display:grid;grid-template-columns:minmax(340px,.8fr) minmax(570px,1.2fr);gap:clamp(45px,6vw,100px);min-height:calc(100svh - 100px);padding:clamp(60px,7vw,110px) 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b{margin-right:10px;color:var(--orange);font-family:var(--mono)}.choice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:7px}.choice{min-height:92px;padding:10px;border:1px solid var(--line);background:transparent;text-align:left;cursor:pointer}.choice span,.choice strong,.choice small{display:block}.choice span{color:var(--muted);font:700 8px var(--mono)}.choice strong{margin:5px 0;font-size:15px}.choice small{font-size:10px}.choice.is-active{border-color:var(--cyan);background:var(--panel2);box-shadow:inset 0 3px 0 var(--cyan)}.counter{display:grid;grid-template-columns:46px 60px auto 46px;align-items:center;gap:10px}.counter button{height:42px;border:1px solid var(--line);background:var(--panel);cursor:pointer}.counter output{color:var(--cyan);font:700 30px/1 var(--mono);text-align:center}.counter span{color:var(--muted);font-size:12px}.symptom-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:6px}.symptom{padding:9px 4px;border:1px solid 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var(--orange);background:rgba(255,255,255,.55);font-size:12px}.coverage{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px;padding:clamp(70px,8vw,110px) clamp(18px,7vw,110px);background:var(--panel)}.coverage h2,.faq h2{font-size:clamp(42px,5vw,68px)}.coverage>div>p,.faq>div>p{color:var(--cyan)}.zone-map{display:grid;grid-template-columns:repeat(2,1fr);align-content:start}.zone-map span{padding:18px;border:1px solid var(--line);margin:-1px 0 0 -1px}.zone-map span:before{content:"●";margin-right:12px;color:#5df484}.faq{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px;padding:clamp(80px,9vw,130px) clamp(18px,7vw,110px);background:var(--ice);color:var(--navy)}.faq>div>p{color:#007a90}.faq-list{border-top:2px solid var(--navy)}details{border-bottom:1px solid #9ab0b8}summary{padding:22px 35px 22px 0;font-weight:700;cursor:pointer;position:relative}summary:after{content:"+";position:absolute;right:5px;font-family:var(--mono)}details[open] summary:after{content:"−"}details p{max-width:680px;margin:0 0 22px;color:#516972}.contact{display:flex;justify-content:space-between;align-items:end;gap:60px;padding:clamp(70px,9vw,130px) clamp(18px,7vw,110px);background:var(--orange);color:#111}.contact h2{margin:12px 0 5px;font-size:clamp(42px,6vw,80px);line-height:1}.contact p{max-width:620px}.contact>a{min-width:330px;display:flex;justify-content:space-between;padding:20px;border:2px solid #111;font-weight:700;text-decoration:none}footer{display:flex;justify-content:space-between;gap:30px;padding:22px clamp(18px,4vw,60px);color:var(--muted);font:400 10px var(--mono)}:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
@media(max-width:900px){nav a:not(.header-cta){display:none}.hero{grid-template-columns:1fr}.hero-copy{max-width:760px}.protocol,.coverage,.faq{grid-template-columns:1fr}.protocol-title{position:static}.field-note{grid-template-columns:1fr}.telemetry{grid-template-columns:1fr 1fr}.contact{align-items:flex-start;flex-direction:column}.contact>a{min-width:0;width:100%}}
@media(max-width:560px){.demo-notice{display:block}.demo-notice span{display:none}.site-header{min-height:62px}.brand-signal{width:32px;height:32px}.hero{padding-top:48px}.hero h1{font-size:57px}.console{margin:0 -10px;box-shadow:7px 7px 0 rgba(99,230,255,.16)}.console-head{padding:16px}.choice-grid{grid-template-columns:1fr}.choice{min-height:0}.symptom-grid{grid-template-columns:1fr 1fr}.result{grid-template-columns:1fr}.result-status{padding:15px 0 0;border-left:0;border-top:1px solid #aac9d1}.telemetry div{padding:19px}.telemetry strong{font-size:27px}.protocol-list li{grid-template-columns:78px 1fr}.protocol-list li>b{display:none}.field-note figure{min-height:420px}.field-note>div{padding:50px 20px}.zone-map{grid-template-columns:1fr}.contact>a{font-size:13px}footer{flex-direction:column}.protocol-title h2,.field-note h2{font-size:45px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media(min-width:721px) and (max-width:900px){.hero{grid-template-columns:minmax(230px,.65fr) minmax(420px,1.35fr);gap:25px;padding:40px 30px}.hero-copy{max-width:none}.hero h1{font-size:48px}.lead{font-size:14px}.hero-facts{margin-top:20px}.console-head{padding:14px}fieldset{padding:12px 14px}.choice{min-height:72px}.result{padding:14px}}