:root{--bg:#0a0c10;--surface:#131720;--line:#293241;--text:#f5f7fb;--muted:#98a2b3;--lime:#5cf49d;--red:#ff5f6d;--blue:#48b4ff;--yellow:#ffd052;--orange:#ff9948}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}header{height:68px;padding:0 5vw;display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line);background:#0d1016}.brand{color:#fff;text-decoration:none;font-weight:800;letter-spacing:1.5px}.brand b{color:var(--lime)}.tag{color:var(--lime);font-size:11px;font-weight:800;border:1px solid #2a714c;padding:4px 7px;border-radius:99px;letter-spacing:1px}.tv-link{margin-left:auto;color:var(--text);font-size:14px;text-decoration:none}main{max-width:1280px;margin:auto;padding:34px 5vw}.hero{display:flex;align-items:center;justify-content:space-between;gap:22px;margin-bottom:18px}.eyebrow{color:var(--lime);font-size:11px;font-weight:800;letter-spacing:1.8px;margin:0 0 7px}h1{font-size:clamp(28px,5vw,45px);margin:0}#session-status{color:var(--muted);margin:6px 0 0}.session-clock{min-width:112px;text-align:center;border:1px solid var(--line);background:var(--surface);padding:10px 14px;border-radius:10px}.session-clock span{font-size:10px;letter-spacing:1px;color:var(--muted);display:block}.session-clock strong{font-size:26px;color:var(--lime);font-variant-numeric:tabular-nums}.actions{display:flex;gap:10px}button{border-radius:9px;padding:12px 16px;border:1px solid var(--line);font-weight:700;color:#fff;background:transparent;cursor:pointer}.primary{background:var(--lime);color:#092015;border-color:var(--lime)}.quiet{color:var(--muted)}.notice{display:flex;align-items:center;gap:8px;background:var(--surface);color:var(--muted);padding:10px 13px;border-radius:8px;font-size:13px}.dot{width:8px;height:8px;background:var(--orange);border-radius:50%}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:16px;margin-top:22px}.card{background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--line);padding:20px;border-radius:12px;min-height:232px}.card.z1{border-top-color:var(--blue);box-shadow:0 0 24px #48b4ff22}.card.z2{border-top-color:var(--lime);box-shadow:0 0 24px #5cf49d22}.card.z3{border-top-color:var(--yellow);box-shadow:0 0 24px #ffd05222}.card.z4{border-top-color:var(--orange);box-shadow:0 0 24px #ff994822}.card.z5{border-top-color:var(--red);box-shadow:0 0 24px #ff5f6d22}.card.z1 .bpm,.card.z1 .zone{color:var(--blue)}.card.z2 .bpm,.card.z2 .zone{color:var(--lime)}.card.z3 .bpm,.card.z3 .zone{color:var(--yellow)}.card.z4 .bpm,.card.z4 .zone{color:var(--orange)}.card.z5 .bpm,.card.z5 .zone{color:var(--red)}.card.offline{opacity:.62}.person{font-size:18px;font-weight:750}.sensor{font-size:12px;color:var(--muted);margin-top:4px}.bpm{font-size:70px;line-height:1;margin:25px 0 4px;font-weight:850;letter-spacing:-3px}.unit{font-size:13px;letter-spacing:1px;color:var(--muted)}.stats{display:flex;justify-content:space-between;gap:12px;margin-top:16px;color:var(--muted);font-size:11px}.stats b{display:block;color:var(--text);font-size:14px;margin-top:2px;line-height:1.25}.meta{display:flex;justify-content:space-between;margin-top:13px;color:var(--muted);font-size:13px}.zone{font-weight:800;color:var(--lime)}.tv main{max-width:none;padding:25px 4vw}.tv header{height:80px;font-size:20px}.tv .tv-cards{grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:20px;margin-top:0}.tv .card{min-height:330px;padding:27px}.tv .person{font-size:25px}.tv .bpm{font-size:clamp(86px,11vw,150px);margin-top:60px}.tv #tv-title{margin-left:auto;color:var(--muted);font-size:15px}.tv #tv-clock{color:var(--lime);font-variant-numeric:tabular-nums}@media(max-width:600px){header{padding:0 18px}.tv-link{font-size:12px}.hero{align-items:flex-start;flex-direction:column}.actions{width:100%}.actions button{flex:1}main{padding:25px 18px}.cards{grid-template-columns:1fr 1fr;gap:10px}.card{padding:13px;min-height:198px}.bpm{font-size:51px;margin-top:27px}.stats{display:block}.stats span+span{margin-top:7px}}
.profile-add,.profile-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:18px;margin-top:16px}.profile-add h2{margin:0 0 14px;font-size:17px}.profiles{display:grid;gap:10px;margin-top:16px}.profile-card{margin:0}.profile-form{display:grid;grid-template-columns:1.5fr repeat(4,minmax(72px,1fr)) auto;gap:9px}.profile-form input,.profile-form select{min-width:0;background:#0d1016;border:1px solid var(--line);border-radius:8px;color:var(--text);padding:10px}.profile-form button{padding:10px 13px}@media(max-width:700px){.profile-form{grid-template-columns:1fr 1fr}.profile-form button{grid-column:span 2}}
.sensor-card .profile-form{grid-template-columns:1.5fr 1.5fr 1fr auto}.sensor-card small{display:block;color:var(--muted);margin-top:10px;font-family:ui-monospace,monospace;font-size:11px}.sensor-state{align-self:center;color:var(--lime);font-size:13px}
.report-card{display:grid;grid-template-columns:2fr 2fr repeat(3,1fr);gap:16px;align-items:center}.report-card>span,.report-card small{color:var(--muted);font-size:12px}.report-card b{display:block;font-size:21px;color:var(--lime)}.report-card small{letter-spacing:.6px}@media(max-width:700px){.report-card{grid-template-columns:1fr 1fr}.report-card>strong,.report-card>span{grid-column:span 2}}
.detail-title{font-size:20px;margin:26px 0 0;color:var(--lime)}
.export{color:var(--lime);text-decoration:none;border:1px solid #2a714c;border-radius:8px;padding:10px 12px;font-size:13px;font-weight:700}
.class-setup{display:flex;gap:10px;margin-bottom:16px}.class-setup input,.class-setup select{background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:11px 13px;font-size:14px}.class-setup input{flex:1}.class-setup select{min-width:155px}.class-setup span{align-content:center;padding:0 12px;border:1px solid #2a714c;border-radius:9px;color:var(--lime);font-weight:800;font-size:12px;letter-spacing:.6px}@media(max-width:600px){.class-setup{flex-wrap:wrap}.class-setup input{min-width:100%}.class-setup select{flex:1}.class-setup span{flex:1;text-align:center;padding:11px}}
.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:12px;margin-top:14px}.summary-grid .profile-card{margin:0}.summary-values{display:flex;gap:14px;margin:15px 0}.summary-values span{color:var(--muted);font-size:10px;letter-spacing:.4px}.summary-values b{display:block;color:var(--lime);font-size:22px}.summary-grid small{color:var(--muted)}
.settings-form{display:grid;gap:14px;max-width:560px}.settings-form label{display:grid;gap:6px;color:var(--muted);font-size:13px}.settings-form input{background:#0d1016;border:1px solid var(--line);border-radius:8px;color:var(--text);padding:11px}.settings-form button{justify-self:start}
.list-title{font-size:15px;letter-spacing:.8px;margin:28px 0 8px;color:var(--muted)}
.accordion{margin:0;border:1px solid var(--line);border-radius:12px;background:var(--surface);overflow:hidden}.accordion summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 18px;font-weight:850}.accordion summary::-webkit-details-marker{display:none}.accordion summary:after{content:'+';font-size:22px;font-weight:400;color:var(--muted)}.accordion[open] summary{border-bottom:1px solid var(--line)}.accordion[open] summary:after{content:'–'}.accordion summary span{font-size:16px}.accordion summary small{color:var(--muted);font-size:10px;letter-spacing:.7px;text-align:right}.accordion-body{padding:16px 18px}.athlete-archive{margin-top:19px;padding-top:15px;border-top:1px solid var(--line)}.athlete-archive h3{font-size:15px;margin:0 0 7px}.archive-list,.session-detail{display:grid;gap:8px;margin-top:12px}.archive-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 12px;border:1px solid var(--line);border-radius:9px;background:rgba(0,0,0,.1)}.archive-row b,.archive-row small{display:block}.archive-row small{margin-top:3px;color:var(--muted);font-size:11px}.danger{color:var(--red);border-color:#ff5f6d66;padding:8px 10px}.sensor-actions,.session-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px}.sensor-summary.online,.sensor-state.online{color:var(--lime)}.sensor-summary.offline,.sensor-state.offline{color:var(--red)}.sensor-address{font-family:ui-monospace,monospace;font-size:10px;word-break:break-all}.session-head>div{display:flex;gap:8px;align-items:center}@media(max-width:700px){.accordion summary{align-items:flex-start}.accordion summary small{text-align:left}.archive-row,.sensor-actions,.session-head{align-items:flex-start;flex-direction:column}.session-head>div{width:100%}.session-head>div>*{flex:1;text-align:center}}

/* CROSSGYM PRO visual system — premium dark performance display */
:root{--bg:#080b12;--surface:#101722;--line:rgba(185,208,240,.14);--text:#f4f7fc;--muted:#91a0b5;--lime:#b7f841;--red:#ff5d70;--blue:#47b9ff;--yellow:#ffd15a;--orange:#ff934d}
body{min-height:100vh;background:radial-gradient(900px 500px at 85% -10%,#1b3840 0%,transparent 60%),radial-gradient(720px 400px at -10% 75%,#172238 0%,transparent 58%),var(--bg);letter-spacing:-.01em}
body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.2;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to bottom,#000,transparent 78%)}
header{min-height:74px;height:auto;background:rgba(8,11,18,.78);backdrop-filter:blur(18px);position:sticky;top:0;z-index:5;border-color:var(--line)}
.brand{font-size:16px;font-weight:900;letter-spacing:1.45px}.brand b{color:var(--lime)}.tag{color:#d8ff8f;font-size:9px;border-color:rgba(183,248,65,.4);background:rgba(183,248,65,.09);padding:5px 8px;letter-spacing:1.25px}.tv-link{margin-left:0;color:var(--muted);font-size:13px;font-weight:700;padding:9px 10px;border-radius:8px;transition:.18s ease}.tag+.tv-link{margin-left:auto}.tv-link:hover{color:var(--text);background:rgba(255,255,255,.07)}
main{max-width:1440px;padding:42px 5vw 56px}.hero{align-items:flex-end;margin-bottom:24px}.eyebrow{font-size:10px;font-weight:900;letter-spacing:1.85px;margin-bottom:9px}h1{font-size:clamp(34px,4vw,56px);letter-spacing:-.055em;line-height:.95}#session-status,.hero>div>p:not(.eyebrow){font-size:15px}.session-clock{min-width:142px;text-align:left;border-color:var(--line);background:linear-gradient(145deg,rgba(24,36,51,.96),rgba(13,19,29,.94));padding:13px 17px;border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,.22)}.session-clock span{font-size:9px;font-weight:800;letter-spacing:1.35px}.session-clock strong{font-size:29px;line-height:1.25;letter-spacing:-.06em}
button{border-color:rgba(185,208,240,.25);font-size:13px;font-weight:850;background:rgba(255,255,255,.035);transition:transform .15s ease,background .15s ease}button:hover{transform:translateY(-1px);background:rgba(255,255,255,.09)}.primary{color:#142000;border-color:var(--lime);background:var(--lime);box-shadow:0 9px 24px rgba(183,248,65,.16)}.primary:hover{background:#ccff68}.class-setup{padding:10px;border-color:var(--line);border-radius:14px;background:rgba(15,22,33,.72)}.class-setup input,.class-setup select,.profile-form input,.profile-form select,.settings-form input{background:rgba(5,8,13,.58);border-color:transparent}.class-setup input:focus,.class-setup select:focus,.profile-form input:focus,.profile-form select:focus,.settings-form input:focus{outline:none;border-color:rgba(183,248,65,.7)}.class-setup span{background:rgba(183,248,65,.09);border:0;font-size:10px;font-weight:900;letter-spacing:.9px}.notice{background:rgba(15,22,33,.8);border:1px solid var(--line);border-radius:999px;font-size:12px}.dot{box-shadow:0 0 0 4px rgba(255,147,77,.12)}
.cards{grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:15px;margin-top:23px}.card{position:relative;overflow:hidden;min-height:254px;padding:20px;border:1px solid var(--line);border-top:3px solid rgba(185,208,240,.25);border-radius:16px;background:linear-gradient(140deg,rgba(25,35,49,.97),rgba(13,18,27,.97));box-shadow:0 20px 60px rgba(0,0,0,.22)}.card:after{content:"";position:absolute;width:150px;height:150px;border-radius:50%;right:-75px;top:-82px;background:var(--zone-glow,transparent);filter:blur(18px);opacity:.45;pointer-events:none}.card.z1{--zone-glow:rgba(71,185,255,.22)}.card.z2{--zone-glow:rgba(183,248,65,.18)}.card.z3{--zone-glow:rgba(255,209,90,.2)}.card.z4{--zone-glow:rgba(255,147,77,.22)}.card.z5{--zone-glow:rgba(255,93,112,.23)}.person,.sensor,.bpm{position:relative;z-index:1}.person{font-weight:850;letter-spacing:-.025em}.sensor{font-size:11px;margin-top:5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.bpm{font-size:76px;line-height:.9;margin:34px 0 5px;font-weight:900;letter-spacing:-.075em}.unit{font-size:9px;font-weight:850;letter-spacing:1.3px}.stats{margin-top:20px;font-size:9px;letter-spacing:.65px}.stats b{font-size:13px;letter-spacing:-.01em}.meta{left:20px;right:20px;bottom:17px;font-size:10px}.zone{letter-spacing:.8px}
.profile-add,.profile-card{background:linear-gradient(135deg,rgba(20,29,42,.91),rgba(13,18,27,.91));border-color:var(--line);border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,.22)}.tv{background:radial-gradient(1000px 700px at 50% -20%,#253a3e 0%,transparent 68%),#06090d}.tv main{max-width:none;padding:28px 4vw 40px}.tv header{height:auto;min-height:88px;padding:0 4vw}.tv .brand{font-size:20px}.tv #tv-title{font-weight:750}.tv .tv-cards{grid-template-columns:repeat(auto-fit,minmax(285px,1fr));gap:18px;margin-top:0}.tv .card{min-height:386px;padding:27px;border-radius:19px}.tv .person{font-size:26px}.tv .sensor{font-size:12px}.tv .bpm{font-size:clamp(100px,11vw,164px);margin-top:78px}.tv .stats{margin-top:24px}
@media(max-width:780px){header{padding:0 18px;overflow-x:auto}.tv-link{font-size:11px;padding:8px 7px}.hero{align-items:flex-start;flex-wrap:wrap}.session-clock{margin-left:auto}.actions{width:100%}.actions button{flex:1}main{padding:30px 18px 45px}.class-setup{flex-wrap:wrap}.class-setup input{min-width:100%}.class-setup select,.class-setup span{flex:1}.class-setup span{text-align:center;padding:11px}}@media(max-width:520px){.tag{display:none}.cards{grid-template-columns:1fr 1fr;gap:10px}.card{min-height:214px;padding:14px;border-radius:13px}.person{font-size:15px}.sensor{font-size:9px}.bpm{font-size:55px;margin-top:34px}.stats{display:block;margin-top:16px}.stats span+span{display:none}.meta{left:14px;right:14px;bottom:13px;font-size:8px}.tv .tv-cards{grid-template-columns:1fr 1fr;gap:10px}.tv .card{min-height:255px;padding:17px}.tv .person{font-size:17px}.tv .bpm{font-size:73px;margin-top:55px}.tv .stats{margin-top:12px}.tv #tv-title{display:none}}

/* Selectable complete application themes. Data hierarchy remains identical in all themes. */
.theme-training-log{--bg:#e7e4dc;--surface:#f7f5ef;--line:#1b1b1b55;--text:#151515;--muted:#5d5d58;--lime:#151515}.theme-training-log:before{display:none}.theme-training-log header{background:#151515;border-color:#151515}.theme-training-log .brand,.theme-training-log .tv-link{color:#f7f5ef}.theme-training-log .brand b{color:#f7f5ef}.theme-training-log .tag{background:transparent;border-color:#f7f5ef;color:#f7f5ef}.theme-training-log .card,.theme-training-log .profile-add,.theme-training-log .profile-card,.theme-training-log .session-clock{background:#f7f5ef;box-shadow:none;border-radius:0;border-color:#151515}.theme-training-log .card:after{display:none}.theme-training-log .card{border-top-width:7px}.theme-training-log .class-setup,.theme-training-log .notice{background:#d5d1c8;border-radius:0;border-color:#151515}.theme-training-log input,.theme-training-log select{background:#fff!important;color:#151515!important;border-color:#151515!important;border-radius:0!important}.theme-training-log .primary{background:#151515;color:#fff;border-color:#151515;box-shadow:none}.theme-training-log .bpm,.theme-training-log .card.z1 .bpm,.theme-training-log .card.z2 .bpm,.theme-training-log .card.z3 .bpm,.theme-training-log .card.z4 .bpm,.theme-training-log .card.z5 .bpm{color:#151515}.theme-training-log .zone{color:#151515!important}.theme-training-log .tv{background:#e7e4dc}.theme-training-log.tv header{background:#151515}.theme-training-log .tv .card{background:#f7f5ef}
.theme-clinical{--bg:#eff6f8;--surface:#ffffff;--line:#2c647333;--text:#163b49;--muted:#5f7d86;--lime:#157c76}.theme-clinical:before{display:none}.theme-clinical{background:linear-gradient(135deg,#f5fbfc,#e1f0f4)}.theme-clinical header{background:#fff;border-color:#2c647333}.theme-clinical .brand,.theme-clinical .tv-link{color:#163b49}.theme-clinical .brand b{color:#157c76}.theme-clinical .tag{color:#157c76;border-color:#157c7688;background:#e5f7f4}.theme-clinical .card,.theme-clinical .profile-add,.theme-clinical .profile-card,.theme-clinical .session-clock{background:#fff;box-shadow:0 8px 28px #2c647312;border-color:#2c647333}.theme-clinical .card:after{display:none}.theme-clinical .class-setup,.theme-clinical .notice{background:#e5f1f4;border-color:#2c647333}.theme-clinical input,.theme-clinical select{background:#fff!important;color:#163b49!important;border-color:#2c647344!important}.theme-clinical .primary{background:#157c76;color:#fff;border-color:#157c76}.theme-clinical .bpm{color:#163b49}.theme-clinical .card.z1 .bpm{color:#2478ad}.theme-clinical .card.z2 .bpm{color:#459e63}.theme-clinical .card.z3 .bpm{color:#b28716}.theme-clinical .card.z4 .bpm{color:#d36b25}.theme-clinical .card.z5 .bpm{color:#c44155}.theme-clinical.tv{background:#edf6f7}.theme-clinical.tv header{background:#fff}
.theme-radar{--bg:#07141e;--surface:#0d2430;--line:#82dcd62b;--text:#ebffff;--muted:#9dbec1;--lime:#9af5ed}.theme-radar{background:radial-gradient(700px 450px at 90% 0,#1d5d6355,transparent 65%),radial-gradient(600px 400px at 0 100%,#17446355,transparent 65%),#07141e}.theme-radar header{background:#091923ee;border-color:#82dcd633}.theme-radar .brand b,.theme-radar .eyebrow,.theme-radar .session-clock strong{color:#9af5ed}.theme-radar .tag{color:#9af5ed;border-color:#9af5ed77;background:#9af5ed12}.theme-radar .card{background:linear-gradient(135deg,#102d39,#091923);border-color:#82dcd633;box-shadow:0 15px 40px #0004}.theme-radar .card:after{opacity:.7}.theme-radar .class-setup,.theme-radar .notice{background:#0d2430;border-color:#82dcd633}.theme-radar input,.theme-radar select{background:#07141e!important;border-color:#82dcd633!important}.theme-radar .primary{background:#9af5ed;color:#072128;border-color:#9af5ed}.theme-radar .card.z1 .bpm,.theme-radar .card.z1 .zone{color:#62caff}.theme-radar .card.z2 .bpm,.theme-radar .card.z2 .zone{color:#87e678}.theme-radar .card.z3 .bpm,.theme-radar .card.z3 .zone{color:#f3ec70}.theme-radar .card.z4 .bpm,.theme-radar .card.z4 .zone{color:#ff9860}.theme-radar .card.z5 .bpm,.theme-radar .card.z5 .zone{color:#ff657b}.theme-radar.tv{background:#06131b}.theme-help{font-size:12px;line-height:1.45;color:var(--muted);margin:0}.settings-form select{background:#0d1016;border:1px solid var(--line);border-radius:8px;color:var(--text);padding:11px}

/* Signal is the red baseline: never inherit lime accents from the shared dashboard. */
body.theme-signal{--lime:#ff5038}
body.theme-signal .session-clock{display:grid;place-content:center;background:#171717!important;border-color:#ff5038!important;padding:13px 17px!important;box-shadow:none!important;text-align:center}
body.theme-signal .session-clock span{display:block;padding:0;background:transparent;color:#91a0b5!important;font-weight:800;line-height:normal;letter-spacing:1.35px;text-align:center}
body.theme-signal .session-clock strong{display:block;min-width:0;padding:0;background:transparent;color:#fff5f2!important;font-weight:900;line-height:1.25;text-align:center;letter-spacing:-.06em}
body.theme-signal .class-setup span{background:#ff5038!important;border:1px solid #ff5038!important;color:#171111!important}
body.theme-signal.tv #tv-clock{color:#ff5038!important}

/* The class clock is a single centered readout in every visual theme. */
.session-clock{display:grid;place-content:center;text-align:center}
.session-clock span,.session-clock strong{text-align:center}