/* A quieter, more legible workbench. Technical detail stays available without
   competing with the message or the receiver's current result. */
:root{--bg:#f2f0ea;--surface:#fffefa;--surface2:#f6f5ef;--surface3:#e9e8df;--text:#272a24;--muted:#575e53;--faint:#6d7568;--line:#d5d8ce;--line2:#e4e6dc;--accent:#a64025;--accent-hover:#87331d;--accent-wash:#f8e9e1;--good:#2e694a;--sans:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--shadow:none}

:root[data-theme=dark]{--bg:#171b19;--surface:#202622;--surface2:#1a201c;--surface3:#303a32;--text:#edf0e8;--muted:#b4bfb1;--faint:#9aa899;--line:#3c4940;--line2:#303d34;--accent:#f29b75;--accent-hover:#ffb596;--accent-wash:#443126;--good:#c1e5ac;--good-wash:#263a2b;--scope:#18231c;--trace:#c8ecac}

body{font-size:15px;line-height:1.55}
.appbar{height:72px;position:sticky;top:0;z-index:20}
.brand strong{font-size:18px}
.app-version,.repo-link,.theme-control select{font-size:11px}
.mode-nav{margin:22px 0 26px}
.nav{font-size:14px;padding:12px 16px 15px}
.page-heading{margin-bottom:22px}
.page-heading h1{font-size:30px;letter-spacing:-.9px}
.heading-dot{display:none}
.page-heading p{font-size:15px;margin-top:7px}
.quiet-button{font:13px var(--sans);min-height:44px;padding:10px 14px}
.panel{border-radius:10px;padding:28px}
.getting-started{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 2px 20px}
.getting-started p{font-size:14px;line-height:1.55;color:var(--muted);margin:0;max-width:530px}
.getting-started strong{color:var(--text);font-weight:650}
.getting-started .text-button{white-space:nowrap}
.protocol-switch{gap:8px;margin-bottom:24px;padding-bottom:20px}
.protocol-switch button,.payload-tabs button{font:13px var(--sans);min-height:40px;padding:8px 12px;color:var(--muted)}
.protocol-switch .selected{font-weight:650}
.field-heading{margin-bottom:10px}
label,legend{font-size:14px;font-weight:600}
textarea{font:15px/1.7 var(--mono);min-height:145px;padding:16px}
.editor-foot{font:12px var(--sans);padding:9px 13px}
.field-row{margin-top:18px}
.field-row>label,.full-label{gap:8px}
select,input[type=text],input:not([type]),input[type=search],input[type=datetime-local]{font-size:14px;min-height:44px;height:auto;padding:10px 12px}
.field-help,.inline-note p{font-size:13px;line-height:1.6}
.inline-note{padding:14px}
.repeat-control{height:44px}
.repeat-control button{font:14px var(--sans)}
.help-button{width:28px;height:28px;font:14px var(--sans)}
.transmission-settings,.receiver-settings{margin-top:20px;border-top:1px solid var(--line);padding:15px 0 0}
.transmission-settings summary,.receiver-settings summary{font-size:14px;font-weight:600;color:var(--text);min-height:32px}
.transmission-settings summary span,.receiver-settings summary span{font-size:12px;font-weight:400;color:var(--muted);float:right}
.transmission-settings[open] summary,.receiver-settings[open] summary{margin-bottom:8px}
.output-strip{margin-top:20px;padding:16px 0}
.output-strip>div>span,.raw-header span{font:12px var(--sans);letter-spacing:0;color:var(--muted)}
.output-strip strong{font:15px var(--mono)}
.transmit-actions{flex-wrap:wrap}
.primary,.secondary,.icon-button{min-height:48px;font-size:14px;font-weight:600;padding:12px 16px}
.transmit-actions .primary{flex:1 1 40%}
.transmit-actions .secondary{flex:1 1 24%}
.transmit-actions .loopback{flex:1 1 auto}
.below-panel{font:12px var(--sans);color:var(--muted);text-align:left}
.text-button{font:13px/1.5 var(--sans);font-weight:600}
.scope-panel{border-radius:10px}
.scope-top,.scope-bottom,.scope-frequency>span,.scope-frequency strong,.scope-channel{font:11px var(--sans);letter-spacing:0}
.scope-axis{font:9px var(--sans);letter-spacing:0}
.rail-card{padding:20px;border-radius:10px}
.rail-heading h2{font-size:15px;font-weight:650}
.rail-card>p{font-size:14px;line-height:1.6}
.rail-card .text-button{font-size:13px}
.local-indicator,.keyboard-hint,.keyboard-hint>span{font:12px/1.5 var(--sans)}
kbd{font:11px var(--sans)}
.instrument-rail{padding-top:92px}
.same-intro p,.mode-intro{font-size:14px;line-height:1.6;color:var(--muted)}
.study-context{padding:16px 18px;background:var(--accent-wash);border-left:3px solid var(--accent);border-radius:3px}
.study-context strong{font-size:14px}
.study-context p{font-size:13px;line-height:1.55;color:var(--muted);margin:5px 0 0}
.tag{font:12px var(--sans);letter-spacing:0}
.search-label,.location-chip-top,.location-chip p,.location-chip .code-parts,.search-results button,.search-results code{font-size:13px}
.location-section .text-button{font-size:13px}
.location-chip code{font-size:13px}
.check-row{font-size:13px}
.check-row input{width:18px;height:18px}
.raw-header code{font-size:13px}
.advanced summary,summary{font-size:14px}
.attachment{font:13px var(--sans)}
.rx-status{font-size:14px}
.empty-result strong{font-size:18px;font-weight:600}
.empty-result p{font-size:14px}
.empty-result .text-button,.receiver-foot .text-button{font-size:13px}
.receiver-foot>span{font:12px var(--sans)}
.receiver-settings{margin-bottom:0}
.receiver-tuning label,.morse-receive-speed label{font-size:13px}
.receiver-tuning p,.morse-receive-speed+p{font-size:13px}
.input-monitor-head strong,.input-monitor>p{font-size:13px}
.input-monitor-head>span,.input-stage>span,.input-stage>strong{font-size:12px}
.copy-progress{margin-top:16px}
.copy-progress-heading,.copy-slot,.copy-progress p{font-size:13px}
.copy-slot small{font-size:12px}
.copy-progress-heading strong{font-size:14px}
#result{padding:22px}
.result-heading strong,.result-heading time,.result-meta{font:12px/1.5 var(--sans);letter-spacing:0}
.result-text{font:15px/1.7 var(--mono)}
.result-actions button{font-size:13px}
.decoded-fields>div{font-size:14px}
.decoded-fields span{font:12px var(--sans);letter-spacing:0}
.lesson-tabs button{font:13px var(--sans);min-height:44px}
.lesson h2{font-size:26px;margin-top:0}
.lesson h3{font-size:17px}
.lesson p,.lesson li{font-size:15px;line-height:1.7}
.lesson .caption,.bit-instrument span,.packet-diagram span,.source-links a{font:12px var(--sans)}
.byte-explorer label,.byte-explorer output,.header-map dd,.header-map dt{font-size:13px}
.morse-timing span,.morse-tone>span,.morse-tone small{font:12px/1.5 var(--sans);letter-spacing:0}
.morse-table th{font:12px var(--sans);text-transform:none;letter-spacing:0}
.morse-key{min-width:44px;min-height:44px}
.diagnostic-panel summary,.diagnostic-panel p,.diagnostic-panel dt,.diagnostic-panel dd{font-size:13px}
.diagnostic-panel summary>span{font:12px var(--sans)}
.history-empty{font:14px var(--sans)}
footer{font:12px var(--sans);letter-spacing:0}
#toast{font-size:14px}
.playback-timeline>div,.playback-timeline p{font:11px var(--sans);letter-spacing:0}

@media(max-width:760px){.appbar{height:64px}
.app-container{padding:0 20px}
.nav{font-size:13px}
.instrument-rail{padding:0}
.page-heading h1{font-size:28px}
.panel{padding:22px}
.getting-started{align-items:flex-start;flex-direction:column;gap:8px}
.getting-started p{font-size:14px}
.lesson p,.lesson li{font-size:15px}
}

@media(max-width:480px){.appbar{padding:0 16px}
.app-container{padding:0 16px}
.repo-link,.theme-control select{font-size:11px}
.theme-control select{width:72px}
.nav{font-size:12px;padding:10px 8px 13px}
.main-modes .nav>span{font-size:15px}
.page-heading h1{font-size:27px}
.page-heading p{font-size:14px}
.quiet-button{font-size:12px;padding:9px}
.panel{padding:18px}
.protocol-switch button{font-size:13px;padding:8px 9px}
.field-row{grid-template-columns:1fr;gap:16px}
.field-row select,.field-row label,legend{font-size:14px}
.output-strip>div>span{font-size:12px}
.output-strip strong{font-size:14px}
.primary,.secondary{font-size:13px}
.transmit-actions .primary{flex-basis:100%}
.transmit-actions .secondary{flex-basis:42%}
.below-panel{font-size:12px}
.receiver-foot>span,.receiver-foot .text-button{font-size:12px}
.copy-progress-heading,.copy-progress p,.copy-slot{font-size:12px}
.copy-slots{flex-direction:column}
.copy-slot{min-height:44px;justify-content:space-between}
.copy-progress-heading strong{font-size:14px}
.result-heading strong,.result-heading time{font-size:12px}
.result-text{font-size:14px}
.location-section .field-heading>label,.location-section .text-button,.location-chip-top,.location-chip code,.location-chip p{font-size:12px}
.digit-breakdown{grid-template-columns:1fr}
.digit-breakdown strong,.digit-breakdown p{font-size:12px!important}
.lesson-tabs button{font-size:12px}
.lesson h2{font-size:24px}
.lesson p,.lesson li{font-size:14px}
.morse-timing{grid-template-columns:1fr}
.morse-timing span{font-size:12px}
.morse-table th{font-size:11px}
.source-links a,.diagnostic-panel summary,.diagnostic-panel summary>span,.diagnostic-panel dd{font-size:12px}
.diagnostic-panel dd{max-width:63%}
footer{font-size:11px;letter-spacing:0}
.receiver-settings summary span,.transmission-settings summary span{float:none;display:block;margin:4px 0 0 20px}
}

.signal-limit{color:var(--accent);font-size:13px;line-height:1.5;margin:12px 0 0}
.morse-hint{font-size:13px;color:var(--muted);line-height:1.5;margin:8px 0 0}
.morse-hint .text-button{font-size:13px}

@media(max-width:480px){.transmitter:has(#custom-fields:not([hidden])) .transmit-actions{position:sticky;bottom:8px;z-index:3;flex-wrap:nowrap;padding:8px;background:var(--surface);border:1px solid var(--line);border-radius:7px;box-shadow:0 4px 16px #0003}
.transmit-actions .primary,.transmit-actions .secondary{flex:1 1 0;min-width:0;padding:10px 5px;font-size:12px;white-space:normal;text-align:center}
.transmit-actions .primary{flex-grow:1.15}
.transmit-actions .secondary svg{display:none}
.transmit-actions .loopback{flex-grow:1.25}
}


.result-source{font-size:13px;color:var(--muted);margin:0 0 10px}
.receiver-settings[open]+.morse-hint{display:none}
@media(max-width:480px){textarea,select,input[type=text],input:not([type]),input[type=search],input[type=datetime-local],.field-row select{font-size:16px}}
.app-layout.reading{grid-template-columns:minmax(0,780px)}
.app-layout.reading .instrument-rail{display:none}
.study-context a{color:var(--accent);font-size:13px;text-decoration:underline;text-underline-offset:3px}
#cancel-test{margin-top:14px}
.same-legal-reminder{font-size:13px;line-height:1.5;color:var(--muted);margin:14px 0 0}.same-legal-reminder a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.export-status{font-size:13px;color:var(--muted);margin-top:12px}#cancel-export{margin-top:8px}

.same-actions #loopback{order:-1}

.footer-links{display:flex;align-items:center;gap:20px;flex-wrap:wrap}.footer-links a{padding:8px 0;color:var(--muted)}
.policy-shell{max-width:820px;margin:0 auto;padding:42px 28px 70px}.policy-shell h1{font-size:30px}.policy-shell h2{font-size:19px;margin:32px 0 10px}.policy-shell p,.policy-shell li{font-size:15px;line-height:1.7;color:var(--muted)}.policy-shell a:not(.brand){color:var(--accent);text-decoration:underline;text-underline-offset:3px}.policy-shell ul{padding-left:22px}.policy-shell li{margin:7px 0}.policy-shell .policy-date{font-size:13px}.policy-review{background:var(--accent-wash);border-left:3px solid var(--accent);padding:14px 16px;margin:24px 0}.policy-review p{margin:0;color:var(--text);font-size:14px}.policy-shell footer{margin-top:40px;flex-wrap:wrap}@media(max-width:480px){.policy-shell{padding:28px 18px 50px}.policy-shell h1{font-size:27px}.footer-links{gap:16px}.policy-shell footer{gap:8px}}

.eas-play-dialog{width:min(500px,calc(100vw - 32px));max-height:calc(100dvh - 32px);overflow:auto;border:1px solid var(--line);border-radius:10px;padding:24px;background:var(--surface);color:var(--text);box-shadow:0 18px 60px #0006}.eas-play-dialog::backdrop{background:#0009}.eas-play-dialog h2{font-size:20px;line-height:1.3;margin:0 0 14px}.eas-play-dialog p{font-size:14px;line-height:1.6;color:var(--muted);margin:0 0 12px}.eas-play-dialog b{color:var(--text)}.dialog-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:22px}.dialog-actions button{min-width:110px}@media(max-width:480px){.eas-play-dialog{padding:20px}.dialog-actions button{flex:1;min-width:0}}