@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root{
    --primary:#6366f1;
    --primary-dark:#4f46e5;
    --primary-light:#818cf8;
    --secondary:#10b981;
    --accent:#f59e0b;
    --danger:#ef4444;
    --dark:#0f172a;
    --dark-2:#1e293b;
    --gray:#64748b;
    --gray-light:#94a3b8;
    --light:#f8fafc;
    --border:#e2e8f0;
    --white:#ffffff;
    --radius:14px;
    --radius-sm:10px;
    --radius-lg:20px;
    --shadow-sm:0 1px 2px rgba(15,23,42,.04);
    --shadow:0 4px 14px rgba(15,23,42,.06);
    --shadow-lg:0 20px 40px rgba(15,23,42,.10);
    --shadow-xl:0 30px 60px rgba(99,102,241,.18);
    --transition:all .25s cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
    background:var(--light);color:var(--dark);
    line-height:1.6;-webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{text-decoration:none;color:var(--primary-dark)}
img{max-width:100%;display:block}
button{font-family:inherit}

.container{max-width:1240px;margin:0 auto;padding:0 24px}
.hidden{display:none!important}

.navbar{
    background:rgba(255,255,255,.85);
    backdrop-filter:saturate(180%) blur(14px);
    -webkit-backdrop-filter:saturate(180%) blur(14px);
    border-bottom:1px solid var(--border);
    padding:14px 0;position:sticky;top:0;z-index:100;
}
.navbar .container{display:flex;justify-content:space-between;align-items:center}
.brand{font-size:1.25rem;font-weight:800;color:var(--dark);letter-spacing:-.02em;display:flex;align-items:center;gap:8px}
.brand img{height:32px;width:auto}
.nav-links{display:flex;gap:6px;align-items:center}
.nav-links a{
    color:var(--dark);font-weight:500;padding:8px 14px;border-radius:10px;
    font-size:.92rem;transition:var(--transition);
}
.nav-links a:hover{background:var(--light);color:var(--primary)}

.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:11px 22px;border:none;border-radius:var(--radius-sm);
    font-weight:600;cursor:pointer;font-size:.92rem;
    transition:var(--transition);text-decoration:none;line-height:1;
    white-space:nowrap;user-select:none;
}
.btn:active{transform:scale(.97)}
.btn-primary{
    background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    color:#fff;box-shadow:0 4px 12px rgba(99,102,241,.28);
}
.btn-primary:hover{box-shadow:0 8px 20px rgba(99,102,241,.4);transform:translateY(-1px);color:#fff}
.btn-success{background:linear-gradient(135deg,#10b981,#059669);color:#fff;box-shadow:0 4px 12px rgba(16,185,129,.28)}
.btn-success:hover{box-shadow:0 8px 20px rgba(16,185,129,.4);color:#fff;transform:translateY(-1px)}
.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}
.btn-danger:hover{box-shadow:0 8px 20px rgba(239,68,68,.4);color:#fff;transform:translateY(-1px)}
.btn-warning{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff}
.btn-outline{background:var(--white);border:1.5px solid var(--border);color:var(--dark)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:#fff}
.btn-ghost{background:transparent;color:var(--gray);padding:8px 12px}
.btn-ghost:hover{background:var(--light);color:var(--dark)}
.btn-sm{padding:7px 14px;font-size:.82rem}
.btn-lg{padding:15px 32px;font-size:1rem}
.btn-block{width:100%}

.form-group{margin-bottom:18px}
.form-group label{display:block;font-weight:600;margin-bottom:8px;font-size:.86rem;color:var(--dark-2);letter-spacing:.01em}
.form-control{
    width:100%;padding:12px 16px;border:1.5px solid var(--border);
    border-radius:var(--radius-sm);font-size:.94rem;outline:none;
    transition:var(--transition);background:var(--white);font-family:inherit;color:var(--dark);
}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(99,102,241,.12)}
.form-control::placeholder{color:var(--gray-light)}
select.form-control{cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:40px;appearance:none}
textarea.form-control{min-height:100px;resize:vertical}

.card{
    background:var(--white);border-radius:var(--radius);padding:24px;
    box-shadow:var(--shadow-sm);border:1px solid var(--border);
    transition:var(--transition);
}
.card:hover{box-shadow:var(--shadow)}

.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.course-card{
    background:var(--white);border-radius:var(--radius-lg);overflow:hidden;
    box-shadow:var(--shadow-sm);border:1px solid var(--border);
    transition:var(--transition);display:flex;flex-direction:column;
}
.course-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.course-img{
    width:100%;height:180px;object-fit:cover;
    background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    position:relative;overflow:hidden;
}
.course-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.course-title{font-weight:700;font-size:1.08rem;line-height:1.35;color:var(--dark)}
.course-desc{color:var(--gray);font-size:.9rem;line-height:1.55}
.course-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:.82rem;color:var(--gray)}
.course-meta span{display:flex;align-items:center;gap:5px}
.course-price{
    font-weight:800;font-size:1.35rem;letter-spacing:-.02em;
    background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}

.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
    background:radial-gradient(circle at 20% 20%,rgba(99,102,241,.08),transparent 40%),
               radial-gradient(circle at 80% 80%,rgba(16,185,129,.06),transparent 40%),var(--light)}
.auth-box{
    background:var(--white);padding:44px;border-radius:var(--radius-lg);
    box-shadow:var(--shadow-lg);width:100%;max-width:440px;
    border:1px solid var(--border);animation:fadeUp .4s ease;
}
.auth-box h1{margin-bottom:26px;text-align:center;color:var(--dark);font-size:1.75rem;font-weight:800;letter-spacing:-.02em}
.auth-box h1::before{content:'🎓';display:block;font-size:2.5rem;margin-bottom:10px}

@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}

.alert{padding:14px 18px;border-radius:var(--radius-sm);margin-bottom:18px;font-size:.9rem;font-weight:500;display:flex;align-items:center;gap:10px;animation:fadeUp .3s ease}
.alert-error{background:#fef2f2;color:#991b1b;border-left:4px solid var(--danger)}
.alert-success{background:#ecfdf5;color:#065f46;border-left:4px solid var(--secondary)}
.alert-info{background:#eff6ff;color:#1e40af;border-left:4px solid var(--primary)}
.alert-warning{background:#fffbeb;color:#92400e;border-left:4px solid var(--accent)}

.player-wrap{display:grid;grid-template-columns:340px 1fr;gap:24px;align-items:flex-start}
.sidebar-aulas{
    background:var(--white);border-radius:var(--radius-lg);padding:20px;
    max-height:calc(100vh - 140px);overflow-y:auto;
    border:1px solid var(--border);box-shadow:var(--shadow-sm);
    position:sticky;top:90px;
}
.sidebar-aulas::-webkit-scrollbar{width:6px}
.sidebar-aulas::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
.modulo-titulo{
    font-weight:700;padding:14px 12px;color:var(--dark);font-size:.92rem;
    background:linear-gradient(135deg,rgba(99,102,241,.06),rgba(99,102,241,.02));
    border-radius:10px;margin-bottom:8px;letter-spacing:-.01em;
    display:flex;align-items:center;gap:8px;
}
.aula-item{
    padding:11px 14px;border-radius:10px;cursor:pointer;font-size:.88rem;
    margin-bottom:3px;display:flex;align-items:center;gap:10px;
    transition:var(--transition);color:var(--dark-2);
    border-left:3px solid transparent;
}
.aula-item:hover{background:var(--light);border-left-color:var(--primary)}
.aula-item.ativa{background:linear-gradient(135deg,rgba(99,102,241,.12),rgba(99,102,241,.05));color:var(--primary-dark);font-weight:600;border-left-color:var(--primary)}
.aula-item.concluida::before{content:'✓';color:var(--secondary);font-weight:800;font-size:1rem;flex-shrink:0}
.aula-item:not(.concluida)::before{content:'▶';color:var(--gray-light);font-size:.7rem;flex-shrink:0}

.conteudo-aula{
    background:var(--white);border-radius:var(--radius-lg);padding:32px;
    min-height:600px;border:1px solid var(--border);box-shadow:var(--shadow-sm);
}
.conteudo-aula h2{font-size:1.5rem;font-weight:800;margin-bottom:20px;letter-spacing:-.02em}
.conteudo-aula video,.conteudo-aula audio,.conteudo-aula img{border-radius:var(--radius);margin-bottom:20px;box-shadow:var(--shadow);background:#000}
.conteudo-aula audio{background:var(--light);padding:12px;width:100%}

.progress-bar{
    height:10px;background:var(--border);border-radius:999px;overflow:hidden;
    position:relative;
}
.progress-bar > div{
    height:100%;background:linear-gradient(90deg,var(--primary),var(--secondary));
    transition:width .5s cubic-bezier(.4,0,.2,1);border-radius:999px;
    position:relative;
}

.badge{
    display:inline-flex;align-items:center;gap:5px;
    padding:4px 11px;border-radius:999px;
    font-size:.75rem;font-weight:600;letter-spacing:.01em;
}
.badge-primary{background:rgba(99,102,241,.12);color:var(--primary-dark)}
.badge-success{background:rgba(16,185,129,.12);color:#047857}
.badge-warning{background:rgba(245,158,11,.12);color:#b45309}
.badge-danger{background:rgba(239,68,68,.12);color:#b91c1c}
.badge-gray{background:var(--light);color:var(--gray)}

.admin-wrap{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.admin-side{
    background:linear-gradient(180deg,var(--dark) 0%,var(--dark-2) 100%);
    color:#fff;padding:26px 18px;position:sticky;top:0;height:100vh;overflow-y:auto;
}
.admin-side::-webkit-scrollbar{width:6px}
.admin-side::-webkit-scrollbar-thumb{background:rgba(255,255,255,.15);border-radius:3px}
.admin-side h2{color:#fff;margin-bottom:26px;font-size:1.15rem;font-weight:800;letter-spacing:-.02em;display:flex;align-items:center;gap:10px}
.admin-side .side-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--gray-light);padding:16px 12px 6px;font-weight:700}
.admin-side a{
    display:flex;align-items:center;gap:11px;
    padding:11px 14px;color:#cbd5e1;border-radius:10px;margin-bottom:3px;
    font-size:.9rem;font-weight:500;transition:var(--transition);
}
.admin-side a:hover{background:rgba(255,255,255,.06);color:#fff}
.admin-side a.active{
    background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    color:#fff;box-shadow:0 4px 12px rgba(99,102,241,.4);
}
.admin-main{padding:32px 36px;background:var(--light);min-height:100vh}
.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;flex-wrap:wrap;gap:14px}
.admin-header h1{font-size:1.6rem;font-weight:800;letter-spacing:-.02em;color:var(--dark)}

.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:30px}
.stat-card{
    background:var(--white);padding:24px;border-radius:var(--radius);
    border:1px solid var(--border);box-shadow:var(--shadow-sm);
    transition:var(--transition);position:relative;overflow:hidden;
}
.stat-card::before{
    content:'';position:absolute;top:0;left:0;right:0;height:3px;
    background:linear-gradient(90deg,var(--primary),var(--secondary));
    opacity:0;transition:opacity .3s;
}
.stat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:transparent}
.stat-card:hover::before{opacity:1}
.stat-card .num{font-size:2rem;font-weight:800;color:var(--dark);letter-spacing:-.03em;line-height:1.1}
.stat-card .lbl{color:var(--gray);font-size:.82rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;margin-top:6px}
.stat-card .icon{
    position:absolute;top:20px;right:22px;font-size:1.6rem;opacity:.15;
}

.table-wrap{background:var(--white);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-sm)}
table{width:100%;border-collapse:collapse}
th,td{padding:15px 18px;text-align:left;border-bottom:1px solid var(--border);font-size:.9rem}
th{
    background:var(--light);font-weight:700;font-size:.78rem;
    text-transform:uppercase;letter-spacing:.06em;color:var(--gray);
}
tbody tr{transition:background .15s}
tbody tr:hover{background:rgba(99,102,241,.03)}
tbody tr:last-child td{border-bottom:none}

.modal-bg{
    position:fixed;inset:0;background:rgba(15,23,42,.6);
    backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
    display:none;align-items:center;justify-content:center;z-index:1000;padding:20px;
    animation:fadeIn .2s ease;
}
.modal-bg.ativo{display:flex}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal{
    background:var(--white);border-radius:var(--radius-lg);padding:32px;
    max-width:600px;width:100%;max-height:90vh;overflow-y:auto;
    box-shadow:var(--shadow-xl);animation:fadeUp .3s ease;
}
.modal h3{margin-bottom:22px;font-size:1.3rem;font-weight:800;letter-spacing:-.02em}
.modal-actions{display:flex;gap:12px;margin-top:24px;justify-content:flex-end}

.mat-card{
    background:var(--white);border-radius:var(--radius-lg);overflow:hidden;
    border:1px solid var(--border);box-shadow:var(--shadow-sm);
    display:flex;flex-direction:column;transition:var(--transition);
}
.mat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.mat-card-header{
    padding:22px 24px 16px;
    background:linear-gradient(135deg,rgba(99,102,241,.08),rgba(16,185,129,.05));
    border-bottom:1px solid var(--border);
}
.mat-card-body{padding:20px 24px 24px;display:flex;flex-direction:column;gap:14px;flex:1}

.hero{
    padding:80px 0 100px;
    background:
        radial-gradient(circle at 10% 20%,rgba(99,102,241,.15),transparent 45%),
        radial-gradient(circle at 90% 80%,rgba(16,185,129,.12),transparent 45%),
        linear-gradient(180deg,#ffffff 0%,#f8fafc 100%);
    position:relative;overflow:hidden;
}
.hero-content{max-width:720px}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:900;letter-spacing:-.035em;line-height:1.08;margin-bottom:20px;color:var(--dark)}
.hero p{font-size:1.15rem;color:var(--gray);line-height:1.65;margin-bottom:32px;max-width:600px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

.section{padding:70px 0}
.section-title{font-size:2rem;font-weight:800;letter-spacing:-.03em;margin-bottom:10px;text-align:center}
.section-subtitle{text-align:center;color:var(--gray);margin-bottom:48px;font-size:1.05rem}

.banners-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(338px,1fr));gap:0px;margin-top:0px}
.banner-card{
    border-radius:var(--radius-lg);overflow:hidden;position:relative;
    height:380px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    display:flex;align-items:flex-end;padding:0px;color:#fff;
    box-shadow:var(--shadow);text-decoration:none;
}
.banner-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.banner-card .banner-overlay{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.75));z-index:1}
.banner-card-content{position:relative;z-index:2}
.banner-card h3{font-size:1.3rem;font-weight:800;margin-bottom:6px;color:#fff}
.banner-card p{font-size:.92rem;opacity:.9;color:#fff}

.quiz-wrap{max-width:820px;margin:0 auto}
.quiz-header{
    background:linear-gradient(135deg,var(--primary),var(--primary-dark));
    color:#fff;padding:26px 32px;border-radius:var(--radius-lg) var(--radius-lg) 0 0;
}
.quiz-header h2{font-size:1.4rem;font-weight:800;color:#fff;margin-bottom:6px}
.quiz-header p{opacity:.9;font-size:.92rem}
.quiz-body{background:var(--white);border:1px solid var(--border);border-top:none;border-radius:0 0 var(--radius-lg) var(--radius-lg);padding:32px}
.questao{
    padding:22px;margin-bottom:18px;background:var(--light);
    border-radius:var(--radius);border-left:4px solid var(--primary);
}
.questao h4{font-size:1.02rem;font-weight:700;margin-bottom:16px;color:var(--dark)}
.opcao{
    display:flex;align-items:center;gap:12px;padding:13px 16px;
    background:var(--white);border:1.5px solid var(--border);
    border-radius:var(--radius-sm);margin-bottom:8px;cursor:pointer;
    transition:var(--transition);font-size:.93rem;
}
.opcao:hover{border-color:var(--primary);background:rgba(99,102,241,.03)}
.opcao input{margin:0;cursor:pointer;accent-color:var(--primary);width:18px;height:18px}
.opcao.selecionada{border-color:var(--primary);background:rgba(99,102,241,.08);font-weight:600}

.quiz-result{
    text-align:center;padding:40px 24px;
}
.quiz-result .nota{
    font-size:4rem;font-weight:900;letter-spacing:-.04em;line-height:1;
    background:linear-gradient(135deg,var(--primary),var(--secondary));
    -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.quiz-result.aprovado .nota{background:linear-gradient(135deg,#10b981,#059669);-webkit-background-clip:text;background-clip:text}
.quiz-result.reprovado .nota{background:linear-gradient(135deg,#ef4444,#dc2626);-webkit-background-clip:text;background-clip:text}

.cms-tabs{display:flex;gap:6px;margin-bottom:24px;flex-wrap:wrap;border-bottom:1px solid var(--border);padding-bottom:0}
.cms-tab{
    padding:11px 20px;border:none;background:transparent;cursor:pointer;
    font-weight:600;font-size:.9rem;color:var(--gray);
    border-bottom:3px solid transparent;margin-bottom:-1px;transition:var(--transition);
}
.cms-tab:hover{color:var(--primary)}
.cms-tab.active{color:var(--primary);border-bottom-color:var(--primary)}
.cms-panel{display:none}
.cms-panel.active{display:block}
.cms-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.color-input{display:flex;gap:10px;align-items:center}
.color-input input[type=color]{width:52px;height:44px;border:1.5px solid var(--border);border-radius:8px;cursor:pointer;padding:2px}
.banner-item{
    background:var(--light);padding:18px;border-radius:var(--radius);
    margin-bottom:14px;border:1px solid var(--border);
}

.empty-state{
    text-align:center;padding:60px 20px;color:var(--gray);
}
.empty-state .emoji{font-size:3.5rem;margin-bottom:14px;opacity:.5}

@media(max-width:1024px){
    .player-wrap{grid-template-columns:1fr}
    .sidebar-aulas{position:static;max-height:none;order:2}
    .conteudo-aula{order:1}
}
@media(max-width:768px){
    .admin-wrap{grid-template-columns:1fr}
    .admin-side{display:none}
    .admin-main{padding:20px}
    .nav-links a:not(.btn){display:none}
    .cms-row{grid-template-columns:1fr}
    .hero{padding:50px 0 70px}
    .hero h1{font-size:2rem}
    .section{padding:50px 0}
    .stat-grid{grid-template-columns:repeat(2,1fr)}
}