:root{--bg:#f6f7f9;--card:#fff;--ink:#1c2230;--mute:#667085;--line:#e3e6ec;--brand:#2f6fed;--ok:#1f9d55;--bad:#d64545;--warn:#e08a00}
@media (prefers-color-scheme:dark){:root{--bg:#12151b;--card:#1b1f27;--ink:#e8eaf0;--mute:#9aa3b2;--line:#2b303b}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
header{background:var(--card);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:20px;padding:0 20px;flex-wrap:wrap}
header b{font-size:16px;padding:14px 0}
nav{display:flex;gap:2px;flex:1;flex-wrap:wrap}
nav a{color:var(--mute);text-decoration:none;padding:15px 12px;border-bottom:2px solid transparent}
nav a.on,nav a:hover{color:var(--ink);border-color:var(--brand)}
main{max-width:1200px;margin:24px auto;padding:0 20px}
h1{font-size:22px;margin:0 0 16px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:18px;margin-bottom:18px}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--mute);font-weight:600;font-size:13px}
input,select,textarea,button{font:inherit;color:inherit}
input[type=text],input[type=password],input[type=datetime-local],select,textarea{width:100%;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg)}
textarea{min-height:110px}
label{display:block;font-weight:600;margin:12px 0 4px;font-size:13px}
.btn{background:var(--brand);color:#fff;border:0;border-radius:8px;padding:8px 14px;cursor:pointer;text-decoration:none;display:inline-block}
.btn.sec{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn.bad{background:var(--bad)}
.btn.sm{padding:4px 9px;font-size:13px}
.pill{display:inline-block;padding:1px 9px;border-radius:99px;font-size:12px;color:#fff;background:var(--mute)}
.pill.programado{background:#2f6fed}.pill.publicado,.pill.conectada{background:var(--ok)}.pill.fallido,.pill.vencida{background:var(--bad)}.pill.publicando{background:var(--warn)}
.grid{display:grid;grid-template-columns:1fr 340px;gap:18px}
@media(max-width:900px){.grid{grid-template-columns:1fr}}
.msg{background:#e8f0fe;color:#1a3d8f;padding:10px 14px;border-radius:8px;margin-bottom:14px}
.err{color:var(--bad)}
.mute{color:var(--mute);font-size:13px}
.checks label{font-weight:400;display:flex;gap:8px;align-items:center;margin:4px 0}
.preview{border:1px solid var(--line);border-radius:10px;padding:12px;background:var(--bg)}
.preview video,.preview img{width:100%;max-height:300px;border-radius:8px;background:#000;object-fit:contain}
.login{max-width:340px;margin:12vh auto}
.row{display:flex;gap:14px;flex-wrap:wrap}.row>*{flex:1;min-width:150px}
.actions form{display:inline}
#cal{min-height:650px}
canvas{max-height:320px}