:root {
  --bg: #0f2438; --panel: #16324c; --panel-2: #1c3d5c; --line: #2a4a6b;
  --blue: #4a90c4; --blue-light: #9fcbee; --text: #eaf3fb; --muted: #9fb6cc;
  --green: #22c55e; --amber: #f59e0b; --red: #ef4444;
  --mono: 'Space Mono', monospace; --sans: 'DM Sans', system-ui, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body { font-family: var(--sans); background: var(--bg); color: var(--text); overflow: hidden; }

/* [hidden] precisa vencer os seletores de id abaixo (#overlay/#painel definem display). */
#overlay[hidden], #painel[hidden] { display: none !important; }

/* Overlay de ativação */
#overlay { position: fixed; inset: 0; display: grid; place-items: center; background: radial-gradient(circle at 50% 30%, #1c3d5c, #0f2438); z-index: 100; }
.overlay-box { text-align: center; }
.overlay-logo { height: 84px; margin-bottom: 1rem; }
.overlay-box .wordmark { font-size: 3rem; font-weight: 800; letter-spacing: -2px; }
.overlay-box .wordmark span { color: var(--blue-light); }
#overlay-cam { color: var(--muted); font-size: 1.4rem; margin: .5rem 0 2rem; }
#btn-ativar { font: inherit; font-size: 1.6rem; font-weight: 700; padding: 1rem 2.5rem; border: 0; border-radius: 14px; background: var(--blue); color: #fff; cursor: pointer; }
#btn-ativar:hover { background: #5aa0d4; }
.overlay-box small { display: block; margin-top: 1.2rem; color: var(--muted); }

/* Painel */
#painel { height: 100vh; display: flex; flex-direction: column; }
.tv-header { display: flex; align-items: center; gap: 1.5rem; padding: 1rem 1.8rem; border-bottom: 2px solid var(--line); background: var(--panel); }
.tv-brand { display: flex; align-items: center; gap: .6rem; }
.tv-brand img { height: 40px; }
.tv-brand .wordmark { font-size: 1.6rem; font-weight: 800; letter-spacing: -1px; }
.tv-brand .wordmark span { color: var(--blue-light); }
.tv-header h1 { flex: 1; text-align: center; font-size: 2.2rem; font-weight: 800; letter-spacing: -1px; }
.tv-clock { font-family: var(--mono); font-size: 2rem; color: var(--blue-light); }

.tv-board { flex: 1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; padding: 1.2rem; min-height: 0; }
.tv-col { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; display: flex; flex-direction: column; min-height: 0; }
.tv-col > header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.4rem; border-bottom: 1px solid var(--line); }
.tv-col > header h2 { font-size: 1.5rem; font-weight: 700; }
.tv-col .count { font-family: var(--mono); font-size: 1.6rem; font-weight: 700; background: var(--panel-2); border-radius: 10px; padding: .1rem .8rem; min-width: 2.4rem; text-align: center; }
.tv-col.dentro > header { color: var(--blue-light); }
.tv-col.descanso > header { color: var(--amber); }
.tv-col.liberados > header { color: var(--green); }
.tv-col ul { list-style: none; padding: .8rem; overflow-y: auto; display: flex; flex-direction: column; gap: .7rem; }

.person { display: flex; align-items: center; gap: 1rem; padding: .9rem 1.1rem; background: var(--panel-2); border-radius: 12px; border-left: 5px solid transparent; }
.person .who { flex: 1; min-width: 0; }
.person .who strong { display: block; font-size: 1.5rem; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.person .who small { color: var(--muted); font-size: 1rem; }
.person .time { font-family: var(--mono); font-size: 1.7rem; font-weight: 700; text-align: right; }
.person.dentro { border-left-color: var(--blue); }
.person.descanso { border-left-color: var(--amber); }
.person.descanso .time { color: var(--amber); }
.person.warn { border-left-color: var(--amber); background: #3a2f14; }
.person.warn .time { color: var(--amber); }
.person.danger { border-left-color: var(--red); background: #3a1a1a; animation: pulse 1s infinite; }
.person.danger .time { color: var(--red); }
.person.liberado { border-left-color: var(--green); }
.person.liberado .ok { color: var(--green); font-size: 1.6rem; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .55; } }

.tv-empty { color: var(--muted); text-align: center; padding: 2rem; font-size: 1.2rem; }

.tv-foot { padding: .55rem 1.8rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 1.15rem; background: var(--panel); display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.foot-left { display: inline-flex; align-items: center; gap: .5rem; }
#status-conn { color: var(--amber); font-size: .8rem; }
#status-conn.ok { color: var(--green); }
#status-conn.off { color: var(--red); }
.foot-right { display: flex; align-items: center; gap: 1.6rem; flex-wrap: wrap; justify-content: flex-end; }
.leitor { display: inline-flex; align-items: center; gap: .45rem; font-weight: 600; color: var(--muted); }
.leitor i { font-size: 1.1rem; }
.leitor.on { color: var(--green); }
.leitor.off { color: var(--red); }
.leitor .porta { color: var(--text); font-weight: 400; }
.leitor.off .porta { color: var(--red); }

/* Banner de alerta grande */
#alerta { position: fixed; top: 0; left: 0; right: 0; padding: 1.2rem; text-align: center; font-size: 2rem; font-weight: 800; color: #fff; z-index: 90; transform: translateY(-100%); transition: transform .25s; }
#alerta.show { transform: none; }
#alerta.info { background: var(--blue); }
#alerta.warn { background: var(--amber); }
#alerta.danger { background: var(--red); }