/* Local-only application shell. No fonts or assets requested from third parties. */
:root{color-scheme:dark;--bg:#0c121c;--surface:#141e2b;--surface-raised:#1a2636;--line:#2a3a4e;--text:#f3f6fa;--muted:#a6b6ca;--accent:#c5f65c;--accent-dark:#a9d749;--danger:#ffb5a9;--radius:20px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-synthesis:none}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{min-width:320px;scroll-behavior:smooth}
body{margin:0;background:radial-gradient(ellipse at 95% 0%,#1b2c2c 0,transparent 36rem),var(--bg);color:var(--text);font-size:15px;line-height:1.55;-webkit-text-size-adjust:100%}
button,input,select,textarea{font:inherit}
button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}
button,a,summary{touch-action:manipulation}
button{cursor:pointer}
button:disabled{opacity:.5;cursor:wait}
a{color:inherit}
svg{flex-shrink:0}
:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
.app-shell{max-width:760px;margin:auto;padding:0 24px;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}
.app-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:28px 0 20px;border-bottom:1px solid #ffffff0d}
.brand{display:flex;flex-direction:column;align-items:flex-start;text-decoration:none;line-height:1.1;min-width:0}
.brand-image{display:block;width:240px;max-width:100%;height:auto}
.brand small{display:block;font-size:10px;letter-spacing:1.5px;font-weight:550;color:var(--muted);margin-top:7px;text-transform:uppercase}
.language-control select{border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);padding:9px 10px;min-height:44px;min-width:63px;font-size:13px;font-weight:700}
.hero{padding:37px 0 29px}
.eyebrow{display:flex;gap:9px;align-items:center;font-size:10px;font-weight:800;letter-spacing:2px;color:var(--accent)}
.accent-line{width:22px;height:2px;background:var(--accent)}
h1{margin:16px 0;font-size:clamp(38px,7vw,56px);line-height:1.06;letter-spacing:-2.5px;font-weight:850;max-width:560px}
.hero-description{max-width:490px;font-size:16px;color:var(--muted);margin:18px 0}
.connection-status{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--muted);margin-top:24px}
.status-dot{width:7px;height:7px;background:var(--accent);border-radius:50%;box-shadow:0 0 0 4px #c5f65c0d;flex-shrink:0}
h2{font-size:18px;line-height:1.3;margin:0;font-weight:750;letter-spacing:-.4px}
h3{font-size:19px;line-height:1.35;letter-spacing:-.5px;margin:0 0 19px}
p{margin:10px 0;color:var(--muted)}
.install-card{border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(120deg,#182632,var(--surface));padding:20px 22px}
.install-heading{display:flex;align-items:center;gap:10px}
.install-heading h2{flex:1}
.small-icon{display:grid;place-items:center;width:28px;height:28px;border:1px solid #c5f65c40;background:#c5f65c0b;color:var(--accent);border-radius:8px;font-size:19px}
.install-card p{font-size:13px;margin:10px 0 0}
.download-card{margin-top:18px;padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);scroll-margin-top:20px}
.download-card p{font-size:13px}
.download-actions{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
.download-actions .button{flex:1;min-width:190px}
.download-card .download-hint{font-size:12px}
details summary{cursor:pointer;min-height:44px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text);list-style:none}
details summary::-webkit-details-marker{display:none}
details summary:before{content:"+";font-weight:700;color:var(--accent);font-size:17px}
details[open] summary:before{content:"−"}
.install-details{margin-top:9px;border-top:1px solid #ffffff0b}
.install-instructions{padding:0 0 8px 22px}
.install-instructions strong{color:var(--text);font-size:12px}
.install-instructions p+p{margin-top:15px}
.connect-section{margin-top:34px}
.section-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:16px}
.step-caption{font-size:9px;font-weight:800;letter-spacing:1.5px;color:var(--muted)}
.mode-picker{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
.mode-button{display:flex;text-align:left;align-items:center;gap:12px;border:1px solid var(--line);border-radius:14px;padding:17px 16px;background:var(--surface);color:var(--muted);min-height:81px;transition:background .15s,border-color .15s}
.mode-button svg{width:26px;height:26px}
.mode-button strong{display:block;font-size:14px;font-weight:750;color:var(--text);line-height:1.4}
.mode-button small{display:block;font-size:11px;margin-top:3px}
.mode-button.is-active,.mode-button[aria-pressed="true"]{border-color:var(--accent);background:#c5f65c0b;color:var(--accent)}
.panel,.scanner-card{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:24px}
.steps{list-style:none;padding:0;margin:0 0 23px;display:grid;gap:19px}
.steps li{display:flex;align-items:flex-start;gap:13px}
.step-number{display:grid;place-items:center;flex-shrink:0;width:28px;height:28px;border-radius:9px;background:var(--surface-raised);border:1px solid var(--line);color:var(--accent);font-size:12px;font-weight:800;margin-top:1px}
.steps strong{font-size:14px;font-weight:650}
.steps p{margin:4px 0 0;font-size:13px;line-height:1.55}
.address-form{border-top:1px solid var(--line);padding-top:20px}
label:not(.language-control){display:block;font-size:12px;font-weight:650;margin-bottom:8px;color:var(--muted)}
input,textarea{display:block;width:100%;background:#0c1420;border:1px solid #374960;border-radius:11px;color:var(--text);min-height:48px;padding:12px 14px;font-size:16px;transition:border-color .15s;min-width:0}
input:focus,textarea:focus{border-color:var(--accent)}
input::placeholder,textarea::placeholder{color:#8193a8;opacity:1}
textarea{resize:vertical;min-height:96px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;border-radius:11px;border:1px solid transparent;min-height:48px;padding:12px 18px;font-weight:750;font-size:14px;text-decoration:none;line-height:1.3;transition:background .15s,transform .15s}
.button:hover{transform:translateY(-1px)}
.button-primary{background:var(--accent);color:#172009;border-color:var(--accent)}
.button-primary:hover{background:var(--accent-dark)}
.button-primary>span[aria-hidden]{margin-left:auto;font-size:19px;line-height:1}
.address-form>.button{width:100%;margin-top:12px;justify-content:space-between}
#direct-form{display:block}
#direct-form>.button{width:100%;margin-top:0}
.address-details{margin-top:9px}
.address-details label{display:block;margin:8px 0}
.address-details input{width:100%}
.button-secondary{background:var(--surface-raised);border-color:#3b4e65;color:var(--text)}
.button-secondary:hover{background:#243449}
.button-quiet{background:transparent;color:var(--muted);border-color:var(--line)}
.button-small{min-height:36px;padding:8px 12px;font-size:12px;background:var(--accent);color:#172009}
.notice{border:1px solid #c5f65c2b;background:#c5f65c07;border-radius:12px;padding:15px 16px;margin:18px 0}
.notice strong{font-size:13px;color:var(--accent)}
.notice p{font-size:13px;margin:6px 0 0}
.scanner-card{margin-top:18px;background:#111b28}
.scanner-card .section-heading{margin-bottom:8px}
.scanner-card h2{font-size:17px}
.qr-icon{width:24px;height:24px;color:var(--muted)}
.scanner-card>p{font-size:13px}
.scanner-actions{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0 0}
.scan-video{display:block;width:100%;max-height:340px;aspect-ratio:4/3;object-fit:cover;background:#070a10;border-radius:12px;margin-top:15px}
.scanner-feedback:empty,.feedback:empty{display:none}
.scanner-feedback{font-size:13px;margin:12px 0 0}
.manual-qr{border-top:1px solid var(--line);margin-top:18px;padding-top:3px}
.manual-qr form{padding:5px 0 4px}
.manual-qr .button{margin-top:12px}
.feedback{margin:18px 0;padding:14px 17px;background:#ffb5a90c;border:1px solid #ffb5a940;border-radius:12px;color:var(--danger);font-size:14px;overflow-wrap:anywhere}
.target-preview{margin-top:18px;background:var(--surface-raised);border:1px solid var(--accent);border-radius:var(--radius);padding:24px}
.target-preview h2{margin-top:12px}
.target-address{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:14px;color:var(--text);overflow-wrap:anywhere;background:#0c1420;padding:12px;border-radius:9px;margin:14px 0}
.target-preview .muted{font-size:13px}
.target-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:17px}
.target-actions .button-primary{flex:1}
.muted{color:var(--muted)}
.breakable{overflow-wrap:anywhere}
.app-footer{padding:27px 7px 33px;text-align:center}
.app-footer p{font-size:11px;line-height:1.65;max-width:420px;margin:15px auto 25px;color:#8da0b7}
.text-button{background:none;border:0;min-height:44px;padding:10px;color:var(--muted);text-decoration:underline;text-underline-offset:4px;font-size:12px}
.text-button:hover{color:var(--text)}
.footer-wordmark{font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:#8da0b7;font-weight:650}
.footer-wordmark>span[aria-hidden]{margin:0 10px;color:var(--accent)}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
.skip-link{position:fixed;top:-100px;left:16px;background:var(--accent);color:var(--bg);padding:12px 18px;border-radius:10px;z-index:10;font-weight:700;text-decoration:none}
.skip-link:focus{top:12px}
@media(min-width:640px){.app-shell{padding-left:36px;padding-right:36px}.hero{padding-top:44px}.mode-button{padding:18px 22px}.panel,.scanner-card{padding:28px}.steps{gap:20px}.steps p{max-width:510px}.app-header{padding-top:34px}.hero-description{font-size:17px}.address-form{display:grid;grid-template-columns:1fr auto;column-gap:12px}.address-form>label{grid-column:1/-1}.address-form>.button{width:auto;margin:0;min-width:190px}.install-card{padding:22px 26px}}
@media(max-width:400px){.app-shell{padding-left:16px;padding-right:16px}.brand-image{width:218px}.brand small{font-size:9px;letter-spacing:1px}.app-header{gap:10px}.panel,.scanner-card,.target-preview{padding:20px 17px}.install-card{padding:18px 17px}.mode-button{padding:14px 10px;gap:8px}.mode-button svg{width:22px;height:22px}.mode-button strong{font-size:13px}.mode-button small{font-size:10px}.step-caption{display:none}.section-heading{gap:10px}.steps{gap:17px}.steps li{gap:11px}h1{font-size:42px}.target-actions{flex-direction:column}.target-actions .button{width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}