:root{
  --pr-bg:#f4efe7;
  --pr-surface:#fffdf9;
  --pr-surface-2:#eee5d7;
  --pr-text:#281a12;
  --pr-muted:#786b62;
  --pr-border:rgba(70,42,25,.14);
  --pr-dark:#1d130e;
  --pr-dark-2:#302017;
  --pr-bronze:#b66f25;
  --pr-gold:#e7b75e;
  --pr-success:#2f7a54;
  --pr-danger:#ad3c36;
  --pr-warning:#b97816;
  --pr-info:#286a7e;
  --pr-shadow:0 14px 38px rgba(48,31,21,.09);
  --pr-radius:20px;
  --pr-sidebar:270px;
}
[data-theme="dark"]{
  --pr-bg:#100d0b;
  --pr-surface:#1b1511;
  --pr-surface-2:#292019;
  --pr-text:#f6eee4;
  --pr-muted:#b9aa9d;
  --pr-border:rgba(255,236,210,.12);
  --pr-shadow:0 16px 42px rgba(0,0,0,.3);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--pr-bg);color:var(--pr-text);font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;min-height:100vh}
a{color:inherit}
.app-shell{min-height:100vh;display:grid;grid-template-columns:var(--pr-sidebar) minmax(0,1fr)}
.sidebar{position:sticky;top:0;height:100vh;background:linear-gradient(180deg,#17100c,#2a1a12);color:#fff;padding:18px 14px;display:flex;flex-direction:column;z-index:1030;overflow-y:auto}
.brand{display:flex;align-items:center;gap:12px;padding:8px 9px 20px;text-decoration:none;color:#fff}
.brand img{width:48px;height:48px;filter:drop-shadow(0 8px 16px rgba(0,0,0,.28))}
.brand strong{font-family:Georgia,serif;display:block;letter-spacing:.04em;font-size:1.08rem}
.brand small{color:#d7b37a;font-size:.73rem;text-transform:uppercase;letter-spacing:.14em}
.nav-section{font-size:.67rem;text-transform:uppercase;letter-spacing:.14em;color:#9d897b;padding:15px 13px 7px}
.side-nav{display:grid;gap:4px}
.side-link{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:13px;text-decoration:none;color:#e9ded5;font-size:.93rem;transition:.18s}
.side-link:hover,.side-link.active{background:rgba(231,183,94,.16);color:#ffe4aa;transform:translateX(2px)}
.side-link .icon{width:24px;text-align:center;font-size:1.05rem}
.sidebar-footer{margin-top:auto;padding:14px 9px 2px;border-top:1px solid rgba(255,255,255,.08)}
.sidebar-footer .user-name{font-weight:700}
.sidebar-footer .user-role{font-size:.75rem;color:#bfae9f;text-transform:capitalize}
.app-main{min-width:0;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:1020;min-height:68px;background:color-mix(in srgb,var(--pr-surface) 91%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--pr-border);display:flex;align-items:center;justify-content:space-between;padding:10px clamp(14px,2vw,28px)}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:10px}
.mobile-menu{display:none}
.page-content{width:100%;padding:clamp(16px,2vw,30px)}
.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.page-title{font-family:Georgia,serif;font-weight:700;letter-spacing:-.025em;margin:0}
.page-subtitle{color:var(--pr-muted);margin:.3rem 0 0}
.card,.modal-content,.dropdown-menu{background:var(--pr-surface);color:var(--pr-text);border:1px solid var(--pr-border);box-shadow:var(--pr-shadow);border-radius:var(--pr-radius)}
.card-header,.card-footer{background:transparent;border-color:var(--pr-border)}
.table{--bs-table-bg:transparent;--bs-table-color:var(--pr-text);--bs-table-border-color:var(--pr-border);margin-bottom:0}
.table thead th{white-space:nowrap;color:var(--pr-muted);font-size:.74rem;text-transform:uppercase;letter-spacing:.06em}
.form-control,.form-select,.input-group-text{background:var(--pr-surface);color:var(--pr-text);border-color:var(--pr-border);border-radius:12px}
.form-control:focus,.form-select:focus{background:var(--pr-surface);color:var(--pr-text);border-color:var(--pr-bronze);box-shadow:0 0 0 .22rem rgba(182,111,37,.14)}
.form-control::placeholder{color:color-mix(in srgb,var(--pr-muted) 70%,transparent)}
.btn{border-radius:12px;font-weight:700}
.btn-primary,.btn-dark{background:linear-gradient(135deg,#342017,#16100c);border-color:#2a1a13;color:#fff}
.btn-primary:hover,.btn-dark:hover{background:#3e2519;border-color:#3e2519;color:#fff}
.btn-bronze{background:linear-gradient(135deg,var(--pr-gold),var(--pr-bronze));border:0;color:#21140d;box-shadow:0 8px 20px rgba(182,111,37,.24)}
.btn-bronze:hover{filter:brightness(.96);color:#21140d}
.btn-xl{padding:1rem 1.35rem;font-size:1.12rem;min-height:58px}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 90% 10%,rgba(245,207,129,.28),transparent 28%),linear-gradient(125deg,#17100c,#4d2c19 64%,#a96020);color:white;border-radius:28px;padding:clamp(25px,4vw,46px);box-shadow:0 22px 50px rgba(43,23,12,.24)}
.hero::after{content:"";position:absolute;inset:auto -80px -110px auto;width:300px;height:300px;border:30px solid rgba(255,255,255,.06);border-radius:50%}
.hero-kicker{color:#f1c779;text-transform:uppercase;letter-spacing:.15em;font-size:.72rem;font-weight:800}
.metric-card{position:relative;overflow:hidden}
.metric-card::after{content:"";position:absolute;width:90px;height:90px;border-radius:50%;right:-30px;bottom:-38px;background:rgba(182,111,37,.09)}
.metric-label{color:var(--pr-muted);font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.metric{font-size:clamp(1.8rem,3vw,2.5rem);font-weight:900;line-height:1.1;margin-top:.35rem}
.metric-icon{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;background:var(--pr-surface-2);font-size:1.35rem}
.status-dot{width:10px;height:10px;border-radius:50%;display:inline-block;background:#9b938c;box-shadow:0 0 0 4px rgba(155,147,140,.12)}
.status-dot.ok{background:#36a36d;box-shadow:0 0 0 4px rgba(54,163,109,.15)}
.status-dot.warn{background:#df9b2d;box-shadow:0 0 0 4px rgba(223,155,45,.15)}
.status-dot.off{background:#c64b43;box-shadow:0 0 0 4px rgba(198,75,67,.15)}
.badge{border-radius:999px;padding:.48em .75em}
.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.quick-action{display:flex;gap:12px;align-items:center;padding:15px;border:1px solid var(--pr-border);background:var(--pr-surface);border-radius:16px;text-decoration:none;transition:.18s}
.quick-action:hover{transform:translateY(-2px);box-shadow:var(--pr-shadow);border-color:rgba(182,111,37,.4)}
.quick-action span:first-child{font-size:1.45rem}
.quick-action strong{display:block}
.quick-action small{color:var(--pr-muted)}
.arena-workspace{background:linear-gradient(145deg,#090706,#1a120e);color:#fff;border-radius:26px;padding:clamp(16px,2.5vw,30px);box-shadow:0 22px 50px rgba(0,0,0,.25)}
.arena-clock{font-variant-numeric:tabular-nums;font-size:clamp(4.2rem,11vw,10.5rem);font-weight:950;letter-spacing:-.065em;line-height:.92;text-align:center;text-shadow:0 7px 30px rgba(0,0,0,.4)}
.arena-status{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em}
.participant-card{background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:13px}
.operation-bar{position:sticky;bottom:12px;background:rgba(18,12,9,.88);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:12px;z-index:1000}
.operation-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.mode-arena .sidebar,.mode-arena .topbar{display:none}
.mode-arena .app-shell{display:block}
.mode-arena .page-content{padding:8px}
.health-list{display:grid;gap:10px}
.health-item{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid var(--pr-border);border-radius:14px;padding:12px 14px}
.code-box{background:#0c1015;color:#d7e1ea;border-radius:13px;padding:1rem;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;white-space:pre-wrap;word-break:break-word}
.empty-state{border:1px dashed var(--pr-border);padding:30px;border-radius:18px;text-align:center;color:var(--pr-muted)}
.list-clean{list-style:none;padding:0;margin:0}
.timeline-item{position:relative;padding:0 0 18px 24px}
.timeline-item::before{content:"";position:absolute;left:5px;top:7px;bottom:-6px;width:2px;background:var(--pr-border)}
.timeline-item::after{content:"";position:absolute;left:0;top:4px;width:12px;height:12px;border-radius:50%;background:var(--pr-bronze)}
.timeline-item:last-child::before{display:none}
.text-secondary{color:var(--pr-muted)!important}
.bg-light,.table-light{background:var(--pr-surface-2)!important;color:var(--pr-text)!important}
.modal-header,.modal-footer{border-color:var(--pr-border)}
.sidebar-backdrop{display:none}
@media(max-width:1199.98px){.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:991.98px){
  .app-shell{display:block}
  .sidebar{position:fixed;left:-290px;width:270px;transition:left .22s ease;box-shadow:20px 0 50px rgba(0,0,0,.35)}
  body.sidebar-open .sidebar{left:0}
  .sidebar-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:1025;display:none}
  body.sidebar-open .sidebar-backdrop{display:block}
  .mobile-menu{display:inline-flex}
  .page-content{padding:18px}
}
@media(max-width:767.98px){
  .topbar{min-height:60px;padding:8px 12px}
  .topbar .event-name{display:none}
  .quick-grid{grid-template-columns:1fr}
  .operation-grid{grid-template-columns:1fr}
  .arena-clock{font-size:clamp(3.8rem,19vw,7rem)}
  .btn-xl{width:100%}
  .page-title{font-size:1.65rem}
}
@media print{
  .sidebar,.topbar,.no-print,.btn{display:none!important}
  .app-shell{display:block}
  .page-content{padding:0}
  body{background:#fff;color:#000}
  .card{box-shadow:none;border:1px solid #ddd}
}
.mode-arena footer{display:none}

/* V3 · Cronometragem redundante */
.timing-channel{position:relative;min-height:190px;padding:1.25rem;border-radius:18px;background:var(--bs-body-bg);border:2px solid var(--bs-border-color);box-shadow:0 10px 30px rgba(22,14,9,.08);overflow:hidden}
.timing-channel.official{border-color:#b87927}.timing-channel.backup{border-color:#697586}.timing-channel.manual{border-color:#8b5cf6}.timing-channel.accepted{box-shadow:0 0 0 4px rgba(37,180,106,.18);border-color:#25b46a}
.channel-role{font-size:.74rem;letter-spacing:.16em;font-weight:900;color:var(--bs-secondary-color)}
.channel-time{font-size:clamp(2rem,4vw,3.4rem);font-weight:950;font-variant-numeric:tabular-nums;letter-spacing:-.055em;line-height:1.05;margin:.8rem 0}
.accepted-ribbon{position:absolute;right:-45px;top:25px;transform:rotate(36deg);width:190px;text-align:center;padding:.35rem;background:#25b46a;color:#fff;font-size:.68rem;font-weight:900;letter-spacing:.08em}
.redundancy-empty{padding:2rem;text-align:center;border:2px dashed rgba(255,255,255,.22);border-radius:18px;color:rgba(255,255,255,.65)}
.metric-card{height:100%;padding:1rem;border:1px solid var(--bs-border-color);border-radius:14px;background:var(--bs-tertiary-bg)}
.metric-card span{display:block;color:var(--bs-secondary-color);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}.metric-card strong{display:block;font-size:1.35rem;margin-top:.25rem;font-variant-numeric:tabular-nums}
@media(max-width:991.98px){.timing-channel{min-height:165px}.channel-time{font-size:2.35rem}}

/* V4 compatibility for bundled Bootstrap 5.1 */
.text-bg-secondary{background:#6c757d!important;color:#fff!important}.text-bg-success{background:#198754!important;color:#fff!important}.text-bg-danger{background:#dc3545!important;color:#fff!important}.text-bg-warning{background:#ffc107!important;color:#212529!important}

/* V4.4 · Zero Treinamento / Configuração guiada da fotocélula */
.setup-progress{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:4px 2px 10px;scrollbar-width:thin}
.setup-progress-item{display:flex;align-items:center;gap:8px;white-space:nowrap;color:var(--pr-muted);font-size:.84rem}
.setup-progress-item span{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--pr-surface);border:2px solid var(--pr-border);font-weight:900;color:var(--pr-text);flex:0 0 auto}
.setup-progress-line{height:2px;min-width:22px;flex:1;background:var(--pr-border)}
.setup-step{overflow:hidden}
.setup-step>.card-body{display:grid;grid-template-columns:54px minmax(0,1fr);gap:18px}
.setup-step-number{width:54px;height:54px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(135deg,var(--pr-gold),var(--pr-bronze));color:#21140d;font-size:1.35rem;font-weight:950;box-shadow:0 8px 18px rgba(182,111,37,.2)}
.setup-step-content{min-width:0}
.setup-step-content h2{font-size:clamp(1.2rem,2vw,1.55rem);font-weight:850;margin:0 0 .35rem}
.setup-step-content p{color:var(--pr-muted);font-size:1rem}
.setup-status{display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:7px 11px;border-radius:999px;font-size:.72rem;font-weight:900;letter-spacing:.05em;white-space:nowrap;border:1px solid var(--pr-border);background:var(--pr-surface-2);color:var(--pr-muted)}
.setup-status.ok{background:rgba(25,135,84,.1);border-color:rgba(25,135,84,.28);color:#198754}
.setup-status.waiting{background:rgba(255,193,7,.12);border-color:rgba(223,155,45,.3);color:#a86d0c}
.setup-tip{border-left:4px solid var(--pr-bronze);background:var(--pr-surface-2);padding:12px 14px;border-radius:0 12px 12px 0;color:var(--pr-muted)}
.setup-visual{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:18px 0}
.setup-file{min-height:64px;display:flex;align-items:center;justify-content:center;text-align:center;padding:12px 16px;border:1px solid var(--pr-border);border-radius:14px;background:var(--pr-surface-2);font-weight:800;min-width:120px}
.setup-file.primary{border-color:rgba(182,111,37,.42);background:rgba(231,183,94,.14)}
.setup-arrow{font-weight:950;color:var(--pr-muted);font-size:1.2rem}
.device-found{display:grid;grid-template-columns:52px minmax(0,1fr);gap:14px;align-items:center;border:1px solid var(--pr-border);border-radius:16px;padding:14px;background:var(--pr-surface-2)}
.device-found.new{border-color:rgba(223,155,45,.6);box-shadow:inset 0 0 0 1px rgba(223,155,45,.12)}
.device-found-icon{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;background:var(--pr-surface);font-size:1.45rem}
.setup-monitor{z-index:10}
.setup-health{display:grid;gap:10px;margin-top:18px}
.setup-health>div{display:grid;grid-template-columns:18px minmax(0,1fr);gap:10px;align-items:start;padding:12px 0;border-bottom:1px solid var(--pr-border)}
.setup-health>div:last-child{border-bottom:0}
.setup-health strong,.setup-health small{display:block}.setup-health small{color:var(--pr-muted);margin-top:2px}
@media(max-width:767.98px){
  .setup-step>.card-body{grid-template-columns:1fr;padding:20px!important}
  .setup-step-number{width:44px;height:44px;border-radius:14px;font-size:1.1rem}
  .setup-visual{display:grid;grid-template-columns:1fr}.setup-arrow{transform:rotate(90deg);text-align:center}.setup-file{width:100%}
  .setup-progress-item strong{display:none}.setup-progress-line{min-width:16px}.setup-progress{justify-content:space-between}
  .form-select-lg,.form-control-lg{font-size:16px}
}