:root{
  --blue:#0E5DA8;--blue-dark:#073C70;--blue-soft:#EAF3FC;--gold:#D9A62A;--gold-soft:#FFF7DC;--ink:#10213f;--muted:#64748b;--line:#E6EDF6;--bg:#F8FBFF;--card:#fff;--radius:20px;--shadow:0 20px 50px rgba(14,93,168,.08)
}
*{box-sizing:border-box} body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:linear-gradient(135deg,#fff 0%,#f7fbff 100%);color:var(--ink)} a{text-decoration:none;color:inherit} button,input{font:inherit}.app{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;background:rgba(255,255,255,.94);border-right:1px solid var(--line);padding:30px 22px;display:flex;flex-direction:column;gap:28px}.logo{font-weight:900;font-size:42px;letter-spacing:-4px;color:var(--blue);line-height:1;display:inline-flex;align-items:center}.logo:before{content:"";width:8px;height:38px;background:var(--gold);display:inline-block;margin-right:8px;border-radius:2px}.logo span{color:var(--blue)}.nav{display:flex;flex-direction:column;gap:8px}.nav a{padding:13px 15px;border-radius:13px;color:#42526e;font-weight:650;display:flex;gap:12px;align-items:center}.nav a.active,.nav a:hover{background:var(--blue-soft);color:var(--blue)}.promo{margin-top:auto;border:1px solid var(--line);border-radius:18px;padding:18px;background:linear-gradient(180deg,#fff,#f8fbff)}.promo .logo{font-size:31px}.promo p{color:#42526e;line-height:1.5}.main{padding:34px 44px 54px}.topbar{display:flex;justify-content:space-between;gap:24px;align-items:center;margin-bottom:28px}.user{display:flex;gap:12px;align-items:center;color:#42526e}.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--blue-soft),#fff);border:1px solid var(--line);display:grid;place-items:center;color:var(--blue);font-weight:800}h1{font-size:36px;margin:0 0 8px;letter-spacing:-.045em}h2{font-size:22px;margin:0 0 18px}.subtitle{color:var(--muted);margin:0;line-height:1.55}.grid{display:grid;gap:24px}.grid.two{grid-template-columns:1fr 1.55fr}.grid.cards{grid-template-columns:repeat(3,minmax(0,1fr))}.card{background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:linear-gradient(135deg,var(--blue),#004b9d);color:white;border:0;border-radius:13px;padding:14px 22px;font-weight:850;box-shadow:0 12px 24px rgba(14,93,168,.18);cursor:pointer}.btn.secondary{background:white;color:var(--blue);border:1px solid var(--line);box-shadow:none}.progress{height:8px;background:#e9eef5;border-radius:999px;overflow:hidden}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--blue),#2A82D4);border-radius:999px}.module,.list-item{display:grid;grid-template-columns:52px 1fr auto;gap:16px;align-items:center;border-top:1px solid var(--line);padding:18px 0}.module:first-child,.list-item:first-child{border-top:0}.iconbox{width:52px;height:52px;border-radius:15px;background:var(--blue-soft);display:grid;place-items:center;color:var(--blue);font-weight:900}.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.kpi{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.kpi strong{font-size:28px;color:var(--blue)}.search{width:100%;padding:16px 18px;border:1px solid var(--line);border-radius:14px;font-size:15px;background:white}.chips{display:flex;gap:12px;flex-wrap:wrap}.chip{padding:10px 18px;border:1px solid var(--line);border-radius:999px;background:white;color:#42526e}.chip.active{background:var(--blue);color:white}.panel{display:grid;grid-template-columns:1.75fr .8fr;gap:24px}.notice{background:linear-gradient(90deg,#f1f7ff,#fff8e2);border:1px solid #d8e8fb;border-radius:16px;padding:18px 22px;display:flex;justify-content:space-between;align-items:center}.hero-concept{min-height:330px;border:1px solid var(--line);border-radius:24px;background:radial-gradient(circle at 82% 20%,rgba(217,166,42,.18),transparent 24%),linear-gradient(135deg,#fff 0%,#edf6ff 52%,#fff 100%);box-shadow:var(--shadow);position:relative;overflow:hidden;padding:34px;display:flex;align-items:flex-end}.hero-concept:before{content:"";position:absolute;right:70px;bottom:55px;width:250px;height:150px;border-radius:24px;background:linear-gradient(90deg,#0E5DA8 0 32%,#fff 32% 42%,#0E5DA8 42% 72%,#fff 72% 82%,#0E5DA8 82%);opacity:.95;filter:drop-shadow(0 20px 35px rgba(14,93,168,.18))}.hero-concept:after{content:"";position:absolute;right:52px;bottom:92px;width:130px;height:130px;border:18px solid var(--blue);border-left-color:transparent;border-radius:50%;opacity:.95}.hero-text{position:relative;z-index:2;max-width:520px}.hero-text .eyebrow{color:var(--gold);font-weight:850;text-transform:uppercase;letter-spacing:.08em}.hero-text h2{font-size:36px;letter-spacing:-.04em;margin:8px 0}.learning-visual{height:100%;min-height:320px;border-radius:22px;background:linear-gradient(145deg,#ffffff,#eff7ff);border:1px solid var(--line);box-shadow:var(--shadow);position:relative;overflow:hidden}.learning-visual .desk{position:absolute;left:8%;right:8%;bottom:14%;height:26%;background:#E9D7B7;border-radius:18px;box-shadow:0 25px 50px rgba(16,33,63,.08)}.learning-visual .pen{position:absolute;left:18%;bottom:36%;width:13px;height:145px;background:linear-gradient(var(--blue-dark),var(--blue));border-radius:999px;box-shadow:0 0 0 3px #fff,0 15px 30px rgba(14,93,168,.18)}.learning-visual .books{position:absolute;left:38%;bottom:37%;width:190px}.learning-visual .book{height:36px;border-radius:8px;margin:7px 0;background:var(--blue);color:#fff;display:flex;align-items:center;padding-left:18px;font-weight:750;box-shadow:0 10px 20px rgba(14,93,168,.12)}.learning-visual .book:nth-child(2){background:#fff;color:var(--blue);border:1px solid var(--line)}.learning-visual .ear{position:absolute;right:17%;bottom:34%;width:95px;height:125px;border:16px solid #fff;border-radius:50% 50% 45% 45%;box-shadow:inset 0 0 0 1px #dfe7f1,0 20px 40px rgba(16,33,63,.08)}.learning-visual .ear:before{content:"";position:absolute;inset:22px;border:10px solid #eef3f8;border-left-color:transparent;border-radius:50%}.video{aspect-ratio:16/9;background:linear-gradient(135deg,#0b1c34,#0E5DA8);border-radius:18px;position:relative;overflow:hidden}.video:before{content:"Aula IEC";position:absolute;left:32px;top:26px;color:white;font-weight:900;font-size:24px}.video:after{content:'▶';position:absolute;inset:0;margin:auto;width:74px;height:74px;border-radius:50%;background:rgba(255,255,255,.94);display:grid;place-items:center;color:var(--blue);font-size:30px}.admin-login{min-height:100vh;display:grid;place-items:center;padding:32px}.login-card{max-width:460px;width:100%;background:white;border:1px solid var(--line);border-radius:26px;padding:34px;box-shadow:var(--shadow)}.field{display:block;margin:14px 0}.field span{display:block;font-weight:750;margin-bottom:7px}.field input,.field select{width:100%;padding:14px 16px;border:1px solid var(--line);border-radius:13px;background:white}.error{color:#b42318;font-weight:700;display:none}.admin-shell{display:none}.admin-shell.active{display:block}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:14px;border-bottom:1px solid var(--line);text-align:left}.table th{color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.06em}@media(max-width:980px){.app{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.nav{flex-direction:row;overflow:auto}.main{padding:24px}.grid.two,.grid.cards,.panel{grid-template-columns:1fr}.topbar{align-items:flex-start}.hero-concept:before,.hero-concept:after{opacity:.25}.learning-visual{min-height:260px}}

/* IEC logo principal */
.logo{letter-spacing:0;gap:0;display:inline-flex;align-items:center;justify-content:flex-start}
.logo:before{display:none!important;content:none!important}
.logo-img{display:block;width:124px;height:auto;object-fit:contain;filter:drop-shadow(0 8px 16px rgba(14,93,168,.08))}
.sidebar>.logo .logo-img{width:118px}
.promo .logo-img{width:92px}
.admin-login .logo-img{width:154px}
.topbar .logo-img{width:136px}
@media(max-width:980px){.logo-img{width:102px}.admin-login .logo-img{width:132px}}

/* Recursos pedagógicos IEC: player, avaliações e correção */
.player-shell{background:#061a34;border-radius:22px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.player-screen{aspect-ratio:16/9;background:radial-gradient(circle at 70% 30%,rgba(244,197,66,.18),transparent 24%),linear-gradient(135deg,#081b34,#0E5DA8);position:relative;color:white;display:grid;place-items:center;text-align:center;padding:32px}
.player-screen .play-badge{width:88px;height:88px;border-radius:50%;background:rgba(255,255,255,.96);color:var(--blue);display:grid;place-items:center;font-size:34px;margin:0 auto 18px;box-shadow:0 20px 45px rgba(0,0,0,.22)}
.player-screen h2{font-size:28px;margin:0;color:white}.player-screen p{color:rgba(255,255,255,.8);max-width:560px;margin:8px auto 0}.player-controls{background:rgba(4,17,32,.96);padding:14px 16px;display:flex;gap:10px;align-items:center;flex-wrap:wrap}.control{border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.08);color:#fff;border-radius:12px;padding:10px 12px;font-weight:800;cursor:pointer}.control:hover{background:rgba(255,255,255,.16)}.timeline{flex:1;min-width:180px;height:8px;background:rgba(255,255,255,.18);border-radius:999px;overflow:hidden}.timeline span{display:block;width:35%;height:100%;background:linear-gradient(90deg,var(--blue),var(--gold))}.volume{width:120px}.speed-pill{color:#fff;background:rgba(244,197,66,.18);border:1px solid rgba(244,197,66,.38);border-radius:999px;padding:8px 12px;font-weight:800}.secure-note{font-size:13px;color:#dbeafe;background:rgba(255,255,255,.08);padding:10px 12px;border-radius:12px}.tag{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:999px;background:var(--blue-soft);color:var(--blue);font-weight:800;font-size:13px}.tag.gold{background:var(--gold-soft);color:#926a00}.tag.red{background:#fff1f1;color:#b42318}.pulse-alert{display:inline-flex;align-items:center;gap:10px;padding:10px 14px;border-radius:999px;background:#fff1f1;color:#b42318;border:1px solid #ffd1d1;font-weight:900;animation:pulse-red 1.2s infinite}.pulse-dot{width:10px;height:10px;border-radius:50%;background:#e11d48;box-shadow:0 0 0 0 rgba(225,29,72,.6);animation:pulse-dot 1.2s infinite}@keyframes pulse-dot{70%{box-shadow:0 0 0 12px rgba(225,29,72,0)}}@keyframes pulse-red{50%{transform:translateY(-1px);box-shadow:0 12px 28px rgba(180,35,24,.14)}}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.textarea{width:100%;min-height:110px;padding:14px 16px;border:1px solid var(--line);border-radius:13px;resize:vertical;background:white}.mini-table{width:100%;border-collapse:separate;border-spacing:0 10px}.mini-table td{background:white;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px}.mini-table td:first-child{border-left:1px solid var(--line);border-radius:14px 0 0 14px}.mini-table td:last-child{border-right:1px solid var(--line);border-radius:0 14px 14px 0}.watermark-preview{position:relative;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:18px;min-height:210px;padding:24px}.watermark-preview:before{content:'CÓPIA CONTROLADA · MATERIAL EXCLUSIVO IEC';position:absolute;inset:0;display:grid;place-items:center;transform:rotate(-24deg);font-weight:900;font-size:26px;color:rgba(14,93,168,.08);text-align:center}.watermark-preview>*{position:relative;z-index:1}.lock-card{border-left:4px solid var(--gold)}
@media(max-width:980px){.form-grid{grid-template-columns:1fr}.player-controls{align-items:stretch}.timeline{width:100%;flex-basis:100%}}

/* Materiais externos e armazenamento */
.db-meter{height:10px;background:#e9eef5;border-radius:999px;overflow:hidden;margin:16px 0}.db-meter span{display:block;height:100%;background:linear-gradient(90deg,var(--blue),#2A82D4);border-radius:999px}.gold-meter span{background:linear-gradient(90deg,var(--gold),#f6d66f)}.storage-row{display:flex;justify-content:space-between;gap:16px;margin-top:18px;color:var(--ink)}.external-viewer{min-height:520px;border:1px dashed #b7c7db;border-radius:22px;background:linear-gradient(135deg,#ffffff,#f5f9ff);display:grid;place-items:center;text-align:center;padding:34px}.external-viewer h2{margin-top:16px}.external-viewer .subtitle{max-width:620px;margin:8px auto 0}