/* =====================================================================================================
   gyroa · 20261009style1 — design system + theme layer.
   Loaded after style.css / layout.css. Colour, type, spacing and radius tokens; dark (default) and light
   themes on :root[data-theme]; shell (sidebar / top bar / bottom nav), cards, controls, chips and
   instrument read-outs restyled. Only presentation: every id / class the scripts use is unchanged.
   ===================================================================================================== */

/* ---------- tokens ---------- */
:root{
  --font-sans:Inter,"SF Pro Text",system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  --mono:"JetBrains Mono","SF Mono",ui-monospace,"Cascadia Mono",Menlo,Consolas,monospace;
  --fs-xs:12px; --fs-sm:13px; --fs-md:14px; --fs-lg:16px; --fs-xl:18px; --fs-2xl:22px; --fs-3xl:28px;
  --fs-display:clamp(30px,2.6vw,42px);
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:20px; --sp-6:24px; --sp-8:32px;
  --r-sm:6px; --r-ctl:8px; --r-panel:14px; --r-lg:18px; --r-pill:999px;
  --ctl:36px; --nav:232px; --top:60px; --pad:28px;
  --ease:cubic-bezier(.2,.7,.3,1); --dur:.16s;
  font:var(--fs-md)/1.55 var(--font-sans);
  font-feature-settings:"cv11","ss01";
}
:root,:root[data-theme=dark]{
  color-scheme:dark;
  --bg:#0B1017; --bg-2:#0E141D;
  --surface:#121923; --weak-bg:#18212D; --raised:#1D2734; --surface-hover:#1A2330;
  --border:#243041; --border-strong:#33425A; --input:#36465C; --input-hover:#4A5D78; --field:#0F151E;
  --tx:#E6ECF3; --tx2:#A1AFC0; --tx3:#7E8CA0;
  --primary:#8B93FF; --primary-h:#A3A9FF; --on-primary:#0D1033; --primary-tx:#AAB0FF;
  --primary-soft:color-mix(in srgb,#8B93FF 15%,transparent);
  --ok:#34D399; --ok-tx:#6EE7B7; --ok-soft:color-mix(in srgb,#34D399 13%,transparent);
  --warn:#FBBF24; --warn-tx:#FCD34D; --warn-soft:color-mix(in srgb,#FBBF24 11%,transparent); --warn-line:color-mix(in srgb,#FBBF24 28%,transparent);
  --danger:#F87171; --danger-tx:#FCA5A5; --danger-soft:color-mix(in srgb,#F87171 13%,transparent);
  --track:#223043; --hover:rgba(255,255,255,.045); --overlay:rgba(3,6,12,.68); --glass:rgba(18,25,35,.84);
  --toast-bg:#222D3B; --toast-tx:#EEF2F7;
  --shadow:0 1px 0 rgba(255,255,255,.03) inset,0 1px 2px rgba(0,0,0,.35);
  --shadow-md-c:rgba(0,0,0,.35); --shadow-xl-c:rgba(0,0,0,.55);
  --shadow-lg:0 12px 32px rgba(0,0,0,.45);
  --focus:0 0 0 2px var(--bg),0 0 0 4px color-mix(in srgb,var(--primary) 75%,transparent);
  --stage-bg:#0D1623;
  --c-x:#F87171; --c-y:#4ADE80; --c-z:#38BDF8;
  --c-yaw:var(--c-z); --c-pitch:var(--c-y); --c-roll:var(--c-x);
  --chart-grid:#1E2938; --chart-zero:#33425A; --chart-label:#7E8CA0; --chart-cursor:#A1AFC0;
  --app-glow:radial-gradient(1200px 520px at 12% -10%,color-mix(in srgb,#8B93FF 9%,transparent),transparent 60%),radial-gradient(900px 480px at 110% 0%,color-mix(in srgb,#38BDF8 6%,transparent),transparent 60%);
}
:root[data-theme=light]{
  color-scheme:light;
  --bg:#F3F5F8; --bg-2:#ECEFF4;
  --surface:#FFFFFF; --weak-bg:#F6F7FA; --raised:#FFFFFF; --surface-hover:#F9FAFC;
  --border:#E1E5EB; --border-strong:#CDD3DC; --input:#C6CED9; --input-hover:#A9B3C1; --field:#FFFFFF;
  --tx:#141A23; --tx2:#4D5869; --tx3:#687385;
  --primary:#4F46E5; --primary-h:#4338CA; --on-primary:#FFFFFF; --primary-tx:#4338CA;
  --primary-soft:color-mix(in srgb,#4F46E5 9%,transparent);
  --ok:#059669; --ok-tx:#047857; --ok-soft:color-mix(in srgb,#059669 10%,transparent);
  --warn:#D97706; --warn-tx:#B45309; --warn-soft:#FFF8EB; --warn-line:#FBD9A0;
  --danger:#DC2626; --danger-tx:#B91C1C; --danger-soft:color-mix(in srgb,#DC2626 8%,transparent);
  --track:#E4E8EE; --hover:rgba(16,24,40,.04); --overlay:rgba(15,23,42,.42); --glass:rgba(255,255,255,.9);
  --toast-bg:#1B2230; --toast-tx:#FFFFFF;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 1px 3px rgba(16,24,40,.04);
  --shadow-md-c:rgba(16,24,40,.12); --shadow-xl-c:rgba(16,24,40,.22);
  --shadow-lg:0 12px 32px rgba(16,24,40,.14);
  --focus:0 0 0 2px var(--surface),0 0 0 4px color-mix(in srgb,var(--primary) 60%,transparent);
  --stage-bg:#0D1623;
  --c-x:#DC2626; --c-y:#16A34A; --c-z:#0284C7;
  --chart-grid:#EEF1F5; --chart-zero:#CDD3DC; --chart-label:#687385; --chart-cursor:#4D5869;
  --app-glow:radial-gradient(1200px 520px at 12% -10%,color-mix(in srgb,#4F46E5 5%,transparent),transparent 60%);
}
html,body{background:var(--bg);color:var(--tx)}
body{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
::selection{background:color-mix(in srgb,var(--primary) 30%,transparent)}
*{scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}

/* ---------- controls ---------- */
button,.btn-like{height:var(--ctl);padding:0 14px;border-radius:var(--r-ctl);font-weight:550;font-size:var(--fs-md);
  color:var(--tx);background:var(--weak-bg);border:1px solid var(--border-strong);
  transition:background var(--dur),border-color var(--dur),color var(--dur),box-shadow var(--dur),transform var(--dur)}
button:hover:not(:disabled),.file-pick:hover .btn-like{background:var(--raised);border-color:var(--input-hover)}
button:active:not(:disabled){transform:translateY(1px)}
button.primary{background:var(--primary);border-color:var(--primary);color:var(--on-primary);box-shadow:0 1px 0 rgba(255,255,255,.12) inset,0 2px 8px color-mix(in srgb,var(--primary) 22%,transparent)}
button.primary:hover:not(:disabled){background:var(--primary-h);border-color:var(--primary-h)}
button.danger{color:#fff}
button:disabled{opacity:1;color:var(--tx3);background:var(--weak-bg);border-color:var(--border);box-shadow:none}
button.primary:disabled{background:color-mix(in srgb,var(--primary) 20%,var(--surface));border-color:color-mix(in srgb,var(--primary) 26%,var(--surface));color:color-mix(in srgb,var(--primary-tx) 55%,var(--tx3));box-shadow:none}
button.link:disabled{background:none;border:0}
button.link.weak-link{font-weight:500}
button.sm{height:30px;padding:0 11px;font-size:var(--fs-sm)}
button.link{color:var(--primary-tx);background:none;border:0;height:auto;padding:0}
button.link:hover:not(:disabled){background:none}
:focus-visible{outline:none;box-shadow:var(--focus)!important}
a:focus-visible{border-radius:var(--r-ctl)}
select,input:not([type=checkbox]):not([type=radio]):not([type=file]){background-color:var(--field);border-color:var(--input);color:var(--tx);border-radius:var(--r-ctl)}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%238C99AB' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E")}
select:hover:not(:disabled),input:not([type=checkbox]):not([type=radio]):not([type=file]):hover:not(:disabled){border-color:var(--input-hover)}
select:focus,input:focus{border-color:var(--primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 22%,transparent)}
select:disabled,input:disabled{background-color:var(--weak-bg);color:var(--tx3)}
select option{background:var(--surface);color:var(--tx)}
input.switch{background:var(--input)}
input.switch::after{background:#fff;box-shadow:0 1px 2px rgba(0,0,0,.3)}
input.switch:checked{background:var(--primary)}
:root[data-theme=dark] input.switch:checked::after{background:var(--on-primary)}
.field,.field>legend{color:var(--tx2);font-size:var(--fs-sm)}
.checks label,.check{background:var(--weak-bg);border-color:var(--border)}
.check{background:none}
.checks label:hover{border-color:var(--border-strong)}
.checks label:has(input:checked){border-color:color-mix(in srgb,var(--primary) 50%,transparent);background:var(--primary-soft);color:var(--tx)}
.checks .more>summary,.disclosure>summary:hover,.drift-method summary{color:var(--primary-tx)}

/* segmented */
.seg{background:var(--field);border:1px solid var(--border);border-radius:10px;padding:3px}
.seg button,.seg label{color:var(--tx2);border-radius:7px;font-weight:550;border:0;background:none}
.seg button:hover:not(:disabled){background:var(--hover);color:var(--tx)}
.seg button.on,.seg label:has(input:checked){background:var(--raised);color:var(--tx);box-shadow:0 0 0 1px var(--border-strong),0 1px 2px rgba(0,0,0,.18)}
:root[data-theme=light] .seg button.on,:root[data-theme=light] .seg label:has(input:checked){background:#fff;box-shadow:0 0 0 1px var(--border),0 1px 3px rgba(16,24,40,.08)}
.seg.radios label:has(input:focus-visible){outline:none;box-shadow:var(--focus)}

/* chips / badges / status text */
.chip,.badge{height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:var(--fs-xs);font-weight:600;letter-spacing:.01em;
  color:var(--tx2);background:var(--weak-bg);border:1px solid var(--border)}
.chip.on,.badge.on{color:var(--ok-tx);background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 30%,transparent)}
.chip.warn,.badge.warn{color:var(--warn-tx);background:var(--warn-soft);border-color:var(--warn-line)}
.chip.off,.badge.off{color:var(--danger-tx);background:var(--danger-soft);border-color:color-mix(in srgb,var(--danger) 28%,transparent)}
.chip.busy{color:var(--primary-tx);background:var(--primary-soft);border-color:color-mix(in srgb,var(--primary) 30%,transparent)}
.lead,.status-line,.aux{color:var(--tx2)}
.dirty,.warn-line{color:var(--warn-tx)}

/* progress */
.bar,progress{height:6px;border-radius:var(--r-pill);background:var(--track)}
progress::-webkit-progress-bar{background:var(--track);border-radius:var(--r-pill)}
progress::-webkit-progress-value{background:linear-gradient(90deg,color-mix(in srgb,var(--primary) 75%,var(--c-z)),var(--primary));border-radius:var(--r-pill)}
.bar i{background:linear-gradient(90deg,color-mix(in srgb,var(--primary) 75%,var(--c-z)),var(--primary));border-radius:var(--r-pill)}
#driftProgress{height:8px}

/* ---------- shell ---------- */
.app{background:var(--bg);background-image:var(--app-glow)}
.nav{background:color-mix(in srgb,var(--surface) 72%,transparent);border-right:1px solid var(--border);padding:18px 12px 16px;gap:2px;backdrop-filter:blur(12px)}
.nav-brand{display:flex;align-items:center;gap:10px;padding:2px 8px 18px;margin-bottom:8px;border-bottom:1px solid var(--border);min-width:0}
.nav-mark{width:34px;height:34px;margin:0;flex:none;border-radius:10px;
  background:conic-gradient(from 210deg,var(--c-x),var(--c-y),var(--c-z),var(--primary),var(--c-x));position:relative;box-shadow:0 4px 14px color-mix(in srgb,var(--primary) 30%,transparent)}
.nav-mark::after{content:"";position:absolute;inset:3px;border:0;border-radius:8px;background:var(--surface)}
.nav-mark::before{content:"";position:absolute;inset:11px;z-index:1;border-radius:50%;border:2px solid var(--primary-tx);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 18%,transparent)}
.nav-brand-t{display:flex;flex-direction:column;min-width:0;line-height:1.25}
.nav-brand-t b{font-size:15px;font-weight:700;letter-spacing:.01em;color:var(--tx);white-space:nowrap}
.nav-brand-t small{font-size:var(--fs-xs);color:var(--tx3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-item{position:relative;flex-direction:row;justify-content:flex-start;gap:12px;height:40px;padding:0 12px;border-radius:9px;
  color:var(--tx2);font-size:var(--fs-md);font-weight:550;transition:background var(--dur),color var(--dur)}
.nav-item .ic{width:19px;height:19px}
.nav-item:hover{background:var(--hover);color:var(--tx)}
.nav-item.active{background:var(--primary-soft);color:var(--primary-tx)}
.nav-item.active::before{content:"";position:absolute;left:-12px;top:9px;bottom:9px;width:3px;border-radius:0 3px 3px 0;background:var(--primary)}
.main{background:transparent}
.topbar{height:var(--top);background:color-mix(in srgb,var(--bg) 70%,transparent);border-bottom:1px solid var(--border);backdrop-filter:saturate(1.4) blur(14px);gap:12px}
.tb-left{gap:14px}
.tb-title{font-size:15px;font-weight:650;color:var(--tx);display:none}
.tb-right{gap:8px}
/* connection chip: always visible, state = colour + text */
.conn{height:30px;padding:0 12px 0 10px;border-radius:var(--r-pill);font-size:var(--fs-sm);font-weight:600;color:var(--tx2);
  background:var(--weak-bg);border:1px solid var(--border);gap:8px;transition:background var(--dur),color var(--dur),border-color var(--dur)}
.conn .dot{width:8px;height:8px;background:var(--tx3);position:relative}
.conn[data-state=on]{color:var(--ok-tx);background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 32%,transparent)}
.conn[data-state=on] .dot{background:var(--ok);box-shadow:0 0 0 3px color-mix(in srgb,var(--ok) 22%,transparent);animation:conn-pulse 2.2s ease-in-out infinite}
.conn[data-state=busy]{color:var(--warn-tx);background:var(--warn-soft);border-color:var(--warn-line)}
.conn[data-state=busy] .dot{background:var(--warn);animation:conn-pulse 1s ease-in-out infinite}
.conn[data-state=fail]{color:var(--danger-tx);background:var(--danger-soft);border-color:color-mix(in srgb,var(--danger) 30%,transparent)}
.conn[data-state=fail] .dot{background:var(--danger)}
@keyframes conn-pulse{0%,100%{box-shadow:0 0 0 2px color-mix(in srgb,currentColor 25%,transparent)}50%{box-shadow:0 0 0 5px color-mix(in srgb,currentColor 0%,transparent)}}
.icon-btn{width:36px;height:36px;padding:0;color:var(--tx2);background:transparent;border:1px solid transparent;border-radius:var(--r-ctl);display:inline-flex;align-items:center;justify-content:center}
.icon-btn:hover:not(:disabled){background:var(--hover);color:var(--tx);border-color:var(--border)}
.theme-toggle .i-moon{display:none}
:root[data-theme=light] .theme-toggle .i-sun{display:none}
:root[data-theme=light] .theme-toggle .i-moon{display:block}
.serial-notice:not([hidden]){background:var(--warn-soft);color:var(--warn-tx);border-bottom:1px solid var(--warn-line);font-size:var(--fs-sm);font-weight:500;padding:7px 16px}
.serial-notice:not([hidden])::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--warn);flex:none}
.serial-notice a{color:var(--primary-tx)}
.views{background:transparent}
.view{padding:26px var(--pad) 32px}
.page-h{min-height:36px}
.page-h h1{font-size:var(--fs-2xl);font-weight:700;letter-spacing:-.01em;line-height:30px;color:var(--tx)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-panel);box-shadow:var(--shadow)}
.card-h h2,.view-test h2,.adv>summary,.adv.disclosure>summary{font-size:var(--fs-lg);font-weight:650;letter-spacing:-.005em;color:var(--tx)}
.kv,.adv-acc,.recovery,.tile,.raw-grid,#startupBiasPanel{background:var(--weak-bg);border-radius:var(--r-ctl)}
#log{background:var(--field);color:var(--tx2);border-color:var(--border)}
.toast{background:var(--toast-bg);color:var(--toast-tx);border:1px solid color-mix(in srgb,#fff 8%,transparent);border-radius:12px;box-shadow:var(--shadow-lg);font-weight:500}
.page-foot{border-top-color:var(--border)}
.view-settings .page-foot{background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(10px);border-top:1px solid var(--border)}

/* ---------- status: instrument read-out ---------- */
.stage{background:var(--stage-bg);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow)}
.stage::after{content:"";position:absolute;inset:10px;pointer-events:none;z-index:2;border-radius:10px;
  background:
    linear-gradient(var(--hud,rgba(159,220,255,.35)),var(--hud,rgba(159,220,255,.35))) top left/14px 1px no-repeat,
    linear-gradient(var(--hud,rgba(159,220,255,.35)),var(--hud,rgba(159,220,255,.35))) top left/1px 14px no-repeat,
    linear-gradient(var(--hud,rgba(159,220,255,.35)),var(--hud,rgba(159,220,255,.35))) top right/14px 1px no-repeat,
    linear-gradient(var(--hud,rgba(159,220,255,.35)),var(--hud,rgba(159,220,255,.35))) top right/1px 14px no-repeat,
    linear-gradient(var(--hud,rgba(159,220,255,.35)),var(--hud,rgba(159,220,255,.35))) bottom left/14px 1px no-repeat,
    linear-gradient(var(--hud,rgba(159,220,255,.35)),var(--hud,rgba(159,220,255,.35))) bottom left/1px 14px no-repeat,
    linear-gradient(var(--hud,rgba(159,220,255,.35)),var(--hud,rgba(159,220,255,.35))) bottom right/14px 1px no-repeat,
    linear-gradient(var(--hud,rgba(159,220,255,.35)),var(--hud,rgba(159,220,255,.35))) bottom right/1px 14px no-repeat}
.stage-reset{background:rgba(13,22,35,.78);color:#DCE6F2;border-color:rgba(159,220,255,.22);backdrop-filter:blur(6px);z-index:3}
.stage-reset:hover:not(:disabled){background:rgba(23,36,54,.92);border-color:rgba(159,220,255,.4)}
.view-status .ypr,.ypr{padding:0;gap:0;overflow:hidden}
.ypr-item{position:relative;padding:14px 18px 14px 20px;gap:4px}
.view-status .ypr-item+.ypr-item,.ypr-item+.ypr-item{padding-left:20px;border-left:1px solid var(--border)}
.ypr-item::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--axis);opacity:.9}
.ypr-item:nth-child(1){--axis:var(--c-yaw)}.ypr-item:nth-child(2){--axis:var(--c-pitch)}.ypr-item:nth-child(3){--axis:var(--c-roll)}
.ypr-item>span{display:flex;align-items:center;gap:6px;font-size:var(--fs-xs);font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--tx2)}
.ypr-item>span::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--axis)}
.ypr-item:nth-child(1)>span::after{content:"航向"}.ypr-item:nth-child(2)>span::after{content:"俯仰"}.ypr-item:nth-child(3)>span::after{content:"横滚"}
.ypr-item>span::after{font-weight:500;letter-spacing:0;text-transform:none;color:var(--tx3)}
.ypr-item>div{display:flex;align-items:flex-start;white-space:nowrap}
.ypr-item strong,.view-status .ypr-item strong{font-family:var(--font-sans);font-size:var(--fs-display);font-weight:650;line-height:1.12;letter-spacing:-.02em;font-variant-numeric:tabular-nums;font-feature-settings:"tnum","zero";color:var(--tx)}
.ypr-item em,.view-status .ypr-item em{font-size:.5em;font-size:18px;top:2px;margin-left:3px;color:var(--tx3);font-weight:500}
.quick-set .qs-h h2{font-size:var(--fs-md);font-weight:650}
.dev-card .dev-row{color:var(--tx2)}
.dev-row>.ic{width:28px;height:28px;padding:6px;border-radius:8px;background:var(--weak-bg);color:var(--primary-tx)}
.dev-row .v b{font-family:var(--font-sans);font-size:var(--fs-xl);font-weight:650;color:var(--tx);font-variant-numeric:tabular-nums}
.view-status .dev-row{height:42px}
.quick{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-panel);box-shadow:var(--shadow);color:var(--tx);font-weight:550;transition:border-color var(--dur),background var(--dur),transform var(--dur)}
.quick .ic{color:var(--primary-tx);width:20px;height:20px}
.quick:hover{background:var(--surface-hover);border-color:color-mix(in srgb,var(--primary) 45%,transparent);transform:translateY(-1px)}
.quick::after{content:"";margin-left:auto;width:7px;height:7px;border-right:1.6px solid var(--tx3);border-top:1.6px solid var(--tx3);transform:rotate(45deg);flex:none}
.chart-t{font-size:var(--fs-md);font-weight:650}
.legend i::before{border-radius:50%}
.legend b{color:var(--tx)}
.chart-zoom-btn{background:var(--weak-bg);border-color:var(--border);color:var(--tx2)}
.cz-tip{background:var(--glass);border-color:var(--border);color:var(--tx2);backdrop-filter:blur(8px)}

/* ---------- calibration ---------- */
.acc-faces span{background:var(--weak-bg);border:1px solid var(--border);border-radius:12px;color:var(--tx2);font-family:var(--font-sans);font-weight:650}
.acc-faces span::after{color:var(--tx3);font-weight:500}
.acc-faces span.done{background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 35%,transparent);color:var(--ok-tx)}
.acc-faces span.done::after{color:var(--ok-tx)}
.acc-faces span.current{background:var(--primary-soft);border-color:color-mix(in srgb,var(--primary) 55%,transparent);color:var(--primary-tx);box-shadow:0 0 0 3px color-mix(in srgb,var(--primary) 14%,transparent)}
.acc-faces span.current::after{color:var(--primary-tx)}
.acc-raw>div{background:var(--surface);border-color:var(--border)}
.bh-tbl thead,.vqf-tbl thead,.drift-results thead,.cs-table thead th,.raw-table thead th{background:var(--weak-bg);color:var(--tx2)}
.bh-tbl tbody tr:hover,.drift-results tbody tr:hover,.cs-table tbody tr:hover{background:var(--hover)}
.bh-tbl td,.vqf-tbl td,.drift-results td,.raw-table td{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- test ---------- */
.view-test .drift-timer{background:var(--weak-bg);border:1px solid var(--border);border-radius:12px}
.view-test .drift-timer b{font-family:var(--font-sans);font-weight:650;font-variant-numeric:tabular-nums;letter-spacing:-.01em;color:var(--tx)}
.drift-warning{background:var(--warn-soft);color:var(--warn-tx);border:1px solid var(--warn-line)}
.drift-legend{font-size:var(--fs-sm);font-weight:600}
.drift-legend i{display:inline-flex;align-items:center;gap:6px}
.drift-legend i::before{content:"";width:10px;height:3px;border-radius:2px;background:currentColor}
.cs-table.ins-position td{font-family:var(--font-sans);font-weight:650}

/* ---------- upgrade ---------- */
.file-pick{background:var(--weak-bg);border:1.5px dashed var(--border-strong);border-radius:var(--r-panel);transition:border-color var(--dur),background var(--dur)}
.file-pick:hover{border-color:color-mix(in srgb,var(--primary) 55%,transparent);background:var(--primary-soft)}
.file-pick>.ic{color:var(--primary-tx);width:24px;height:24px}
.fw-card #firmwareStatus{background:var(--primary-soft);color:var(--primary-tx);border:1px solid color-mix(in srgb,var(--primary) 22%,transparent)}
.fw-card>.list-row b{font-family:var(--mono)}
.result.ok{color:var(--ok-tx)}.result.fail{color:var(--danger-tx)}.result.busy{color:var(--primary-tx)}

/* ---------- motion ---------- */
.view.view-enter{animation:view-in .22s var(--ease) both}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .view.view-enter{animation:none}
  .conn .dot{animation:none!important}
}

/* ---------- responsive ---------- */
@media (min-width:1100px){ .tb-left .tb-title{display:none} }
/* 769–1099: icon rail */
@media (max-width:1099px){
  :root{--nav:76px}
  .nav{padding:14px 8px;align-items:stretch}
  .nav-brand{justify-content:center;padding:0 0 14px;border-bottom:1px solid var(--border)}
  .nav-brand-t{display:none}
  .nav-item{flex-direction:column;justify-content:center;gap:3px;height:58px;padding:0;font-size:var(--fs-xs)}
  .nav-item.active::before{left:-8px}
  .tb-title{display:inline}
}
@media (max-width:899px){
  :root{--nav:64px;--pad:18px}
  .nav-item{height:48px}
  .nav-item span{display:none}
}
/* ≤768: bottom navigation (phone) */
@media (max-width:768px){
  :root{--ctl:44px;--pad:12px;--top:56px}
  .nav{flex-direction:row;padding:6px calc(6px + env(safe-area-inset-right)) calc(6px + env(safe-area-inset-bottom)) calc(6px + env(safe-area-inset-left));
    background:color-mix(in srgb,var(--surface) 86%,transparent);border-right:0;border-top:1px solid var(--border);backdrop-filter:saturate(1.4) blur(14px)}
  .nav-brand{display:none}
  .nav-item{flex:1 1 0;min-width:0;height:54px;gap:3px;padding:0;font-size:11px;border-radius:12px;background:none!important}
  .nav-item span{display:block}
  .nav-item .ic{width:22px;height:22px;padding:0;box-sizing:content-box;border-radius:var(--r-pill)}
  .nav-item.active{color:var(--primary-tx)}
  .nav-item.active .ic{background:var(--primary-soft);padding:3px 14px;margin:-3px 0}
  .nav-item.active::before{display:none}
  .topbar{gap:8px}
  .tb-left{gap:10px;min-width:0}
  .tb-title{display:inline;font-size:15px}
  .tb-right{gap:4px}
  .tb-right>a.icon-btn{display:none}
  .conn{height:28px;padding:0 10px 0 9px;font-size:12px}
  #connectBtn,#disconnectBtn{height:38px;padding:0 12px}
  .icon-btn{width:40px;height:40px}
  .view{padding:14px calc(12px + env(safe-area-inset-right)) calc(20px + env(safe-area-inset-bottom)) calc(12px + env(safe-area-inset-left))}
  .page-h h1{font-size:20px}
  .view-status .home-side{display:flex;flex-direction:column;gap:12px}
  .view-status .home-side>*{width:100%}
  .ypr-item{padding:12px 10px 12px 12px}
  .view-status .ypr-item+.ypr-item,.ypr-item+.ypr-item{padding-left:12px}
  .ypr-item>span{font-size:12px;letter-spacing:.06em;gap:5px}
  .ypr-item>span::after{display:none}
  .ypr-item strong,.view-status .ypr-item strong{font-size:clamp(22px,6.6vw,30px)}
  .ypr-item em,.view-status .ypr-item em{font-size:14px;top:1px}
  .chart-tools{justify-content:space-between}
  .serial-notice:not([hidden]){padding:6px 12px;font-size:12px}
  .toasts{bottom:calc(78px + env(safe-area-inset-bottom))}
}
@media (max-width:380px){ .tb-title{display:none} }

/* ---------- fwfetch1：升级页「在线固件」 ---------- */
.fw-remote{display:flex;flex-direction:column;gap:12px;padding:16px;border:1px solid var(--border);border-radius:var(--r-panel);background:var(--weak-bg)}
.fw-remote-h{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.fw-remote-t{display:flex;flex-direction:column;gap:2px;min-width:0}
.fw-remote-t b{font-size:var(--fs-md);font-weight:650;color:var(--tx)}
.fw-remote-t small{font-size:var(--fs-xs);color:var(--tx3);overflow-wrap:anywhere}
#fwFetchBtn{background:var(--surface)}
.fw-remote[data-state=loading] #fwFetchBtn .ic,.fw-remote[data-state=downloading] #fwUseRelease{animation:fw-pulse 1s ease-in-out infinite}
@keyframes fw-pulse{50%{opacity:.45}}
.fw-fetch-status{margin:0;padding:9px 12px;border-radius:var(--r-ctl);font-size:var(--fs-sm);line-height:1.6;color:var(--tx2);background:var(--surface);border:1px solid var(--border);overflow-wrap:anywhere}
.fw-fetch-status[data-kind=busy]{color:var(--primary-tx);border-color:color-mix(in srgb,var(--primary) 30%,transparent)}
.fw-fetch-status[data-kind=ok]{color:var(--ok-tx);background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 30%,transparent)}
.fw-fetch-status[data-kind=warn]{color:var(--warn-tx);background:var(--warn-soft);border-color:var(--warn-line)}
.fw-fetch-status[data-kind=error]{color:var(--danger-tx);background:var(--danger-soft);border-color:color-mix(in srgb,var(--danger) 30%,transparent)}
.fw-releases{display:flex;flex-direction:column;gap:6px;max-height:320px;overflow:auto;overscroll-behavior:contain}
.fw-rel{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:4px 12px;padding:10px 14px;border:1px solid var(--border);border-radius:10px;background:var(--surface);cursor:pointer;transition:border-color var(--dur),background var(--dur)}
.fw-rel:hover{border-color:var(--border-strong)}
.fw-rel.on{border-color:color-mix(in srgb,var(--primary) 60%,transparent);background:var(--primary-soft);box-shadow:0 0 0 1px color-mix(in srgb,var(--primary) 30%,transparent)}
.fw-rel:has(input:focus-visible){box-shadow:var(--focus)}
.fw-rel:has(input:disabled){cursor:not-allowed;opacity:.7}
.fw-rel-main{display:flex;align-items:center;gap:8px;min-width:0;flex-wrap:wrap}
.fw-rel-main b{font-size:15px;font-weight:650;color:var(--tx)}
.fw-rel-main .chip{height:20px;padding:0 8px;font-style:normal}
.fw-rel-meta{display:flex;flex-direction:column;align-items:flex-end;gap:2px;font-size:var(--fs-xs);color:var(--tx2);white-space:nowrap}
.fw-remote-actions{display:flex;align-items:center;gap:8px}
@media (max-width:768px){
  .fw-remote{padding:12px}
  #fwFetchBtn{width:100%}
  .fw-rel{grid-template-columns:auto minmax(0,1fr);padding:10px 12px}
  .fw-rel-meta{grid-column:2;align-items:flex-start;white-space:normal}
  .fw-remote-actions>button{flex:1;min-height:44px}
  .fw-remote-actions>.fill{display:none}
}
/* 20261009theme2: circular theme reveal (theme.js drives the clip-path on ::view-transition-new(root)) */
::view-transition-old(root),::view-transition-new(root){animation:none;mix-blend-mode:normal}
::view-transition-old(root){z-index:1}::view-transition-new(root){z-index:2}
.theme-switching *,.theme-switching *::before,.theme-switching *::after{transition:none!important}
/* 20261009theme3: no text selection on the toggle or anywhere while the reveal runs */
.theme-toggle{-webkit-user-select:none;user-select:none}
html.theme-switching,html.theme-switching *{-webkit-user-select:none!important;user-select:none!important}