:root{
  --bg:#07111f;
  --bg-soft:#0b1628;
  --surface:#ffffff;
  --surface-2:#f6f8fc;
  --surface-3:#eef3fb;
  --text:#0f172a;
  --text-soft:#64748b;
  --text-inverse:#f8fafc;
  --line:#e2e8f0;
  --primary:#168bff;
  --primary-2:#6d3df5;
  --accent:#14b8a6;
  --success:#16a34a;
  --danger:#dc2626;
  --warning:#d97706;
  --shadow:0 18px 50px rgba(15,23,42,.10);
  --shadow-lg:0 30px 80px rgba(2,8,23,.18);
  --radius:18px;
  --radius-sm:12px;
  --container:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  background:var(--surface-2);
  color:var(--text);
  line-height:1.6
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button,input,textarea,select{font:inherit}
.container{width:min(var(--container),92%);margin:0 auto}
.section{padding:72px 0}
.section-sm{padding:42px 0}
.muted{color:var(--text-soft)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 11px;border-radius:999px;
  background:#eaf4ff;color:#1269c9;font-size:13px;font-weight:800;
  letter-spacing:.02em
}
.gradient-text{
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  -webkit-background-clip:text;background-clip:text;color:transparent
}

/* Header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,17,31,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.07)
}
.nav{
  min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px
}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:900;letter-spacing:-.02em}
.brand img{
  width:54px;height:54px;object-fit:cover;border-radius:14px;
  background:#fff;padding:3px;box-shadow:0 8px 24px rgba(0,0,0,.18)
}
.brand-copy{display:flex;flex-direction:column;line-height:1.05}
.brand-title{font-size:17px}
.brand-sub{font-size:11px;font-weight:700;color:#91a4c2;margin-top:5px;letter-spacing:.06em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:24px;color:#cbd5e1;font-weight:700;font-size:14px}
.nav-links a:hover{color:#fff}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 18px;border-radius:12px;border:0;cursor:pointer;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
  color:#fff;font-weight:800;
  box-shadow:0 10px 24px rgba(73,75,231,.22);
  transition:.2s transform,.2s box-shadow,.2s opacity
}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 28px rgba(73,75,231,.28)}
.btn-secondary{background:#fff;color:var(--text);border:1px solid var(--line);box-shadow:none}
.btn-dark{background:#0f172a;box-shadow:none}
.btn-sm{min-height:38px;padding:0 14px;font-size:13px}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 85% 15%,rgba(109,61,245,.35),transparent 25%),
    radial-gradient(circle at 20% 0%,rgba(22,139,255,.25),transparent 30%),
    linear-gradient(145deg,#06101e 0%,#0a1730 55%,#111c36 100%);
  color:#fff;padding:88px 0 80px
}
.hero:after{
  content:"";position:absolute;inset:auto -10% -45% auto;width:480px;height:480px;border-radius:50%;
  background:linear-gradient(135deg,rgba(22,139,255,.28),rgba(109,61,245,.22));filter:blur(18px)
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:52px;position:relative;z-index:1}
.hero h1{font-size:clamp(44px,6vw,74px);line-height:1.02;letter-spacing:-.045em;margin:16px 0 22px}
.hero p{font-size:19px;color:#cbd5e1;max-width:720px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-proof{display:flex;gap:24px;flex-wrap:wrap;margin-top:28px;color:#b8c6db;font-size:13px;font-weight:700}
.hero-card{
  background:rgba(255,255,255,.97);color:var(--text);
  border-radius:24px;padding:26px;box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.4)
}
.hero-card h3{font-size:24px;margin:0 0 8px}
.feature-list{display:grid;gap:11px;margin:22px 0 0;padding:0;list-style:none}
.feature-list li{display:flex;gap:10px;align-items:flex-start;color:#334155}
.feature-list li:before{content:"✓";font-weight:900;color:var(--success)}

/* Cards and grids */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:0 8px 28px rgba(15,23,42,.05)
}
.card h2,.card h3{margin-top:0}
.card-hover{transition:.2s transform,.2s box-shadow}
.card-hover:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.metric{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px
}
.metric small{display:block;color:var(--text-soft);font-weight:700}
.metric strong{font-size:30px;letter-spacing:-.04em}

/* Course cards */
.course-card{overflow:hidden;padding:0}
.course-cover{
  min-height:180px;background:linear-gradient(135deg,#0b1730,#183f88 65%,#6d3df5);
  display:flex;align-items:end;padding:22px;color:white
}
.course-body{padding:22px}
.progress{height:10px;background:#e9eef7;border-radius:999px;overflow:hidden}
.progress span{height:100%;display:block;background:linear-gradient(90deg,var(--primary),var(--primary-2));border-radius:999px}

/* Forms */
.form-card{max-width:620px;margin:0 auto}
label{display:block;font-weight:800;font-size:14px;margin:0 0 7px}
input,textarea,select{
  width:100%;border:1px solid #d7dfeb;background:#fff;color:var(--text);
  border-radius:12px;padding:13px 14px;outline:none;margin-bottom:16px;
  transition:.15s border,.15s box-shadow
}
input:focus,textarea:focus,select:focus{
  border-color:#7ab9ff;box-shadow:0 0 0 4px rgba(22,139,255,.10)
}
.alert{padding:13px 15px;border-radius:12px;margin:14px 0;font-weight:700}
.alert.ok{background:#eaf8ef;color:#166534}
.alert.error{background:#fff0f0;color:#991b1b}

/* Auth */
.auth-page{
  min-height:100vh;display:grid;grid-template-columns:1fr 1fr;background:#fff
}
.auth-side{
  background:
    radial-gradient(circle at 80% 10%,rgba(109,61,245,.35),transparent 25%),
    linear-gradient(145deg,#07111f,#0d1d3a);
  color:#fff;padding:54px;display:flex;flex-direction:column;justify-content:space-between
}
.auth-side .brand img{width:68px;height:68px}
.auth-side h1{font-size:46px;line-height:1.05;letter-spacing:-.04em;max-width:520px}
.auth-main{display:grid;place-items:center;padding:42px}
.auth-box{width:min(460px,100%)}
.auth-box h2{font-size:34px;letter-spacing:-.035em;margin:0 0 8px}

/* Dashboard */
.dashboard-shell{min-height:100vh;display:grid;grid-template-columns:260px 1fr;background:#f5f7fb}
.sidebar{
  background:#07111f;color:#fff;padding:24px 18px;position:sticky;top:0;height:100vh
}
.sidebar .brand{margin-bottom:28px;padding:0 8px}
.side-nav{display:grid;gap:6px}
.side-nav a{
  padding:12px 13px;border-radius:11px;color:#b9c7dc;font-weight:700;font-size:14px
}
.side-nav a:hover,.side-nav a.active{background:#13233f;color:#fff}
.dashboard-main{padding:32px}
.dashboard-top{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}

/* Tables */
.table-wrap{overflow:auto;background:#fff;border:1px solid var(--line);border-radius:16px}
table{width:100%;border-collapse:collapse;min-width:720px}
th,td{padding:14px 16px;border-bottom:1px solid #edf1f6;text-align:left}
th{background:#f8fafc;color:#475569;font-size:12px;text-transform:uppercase;letter-spacing:.04em}
tr:last-child td{border-bottom:0}

/* Lesson */
.lesson-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px;border:1px solid var(--line);border-radius:14px;background:#fff;margin:10px 0
}
.video-frame{
  width:100%;aspect-ratio:16/9;background:#06101e;border-radius:18px;overflow:hidden
}
.video-frame iframe{width:100%;height:100%;border:0}

/* Footer */
.footer{background:#07111f;color:#94a3b8;padding:46px 0;margin-top:40px}
.footer-grid{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}

/* Responsive */
@media(max-width:980px){
  .hero-grid,.grid,.grid-2,.auth-page,.dashboard-shell{grid-template-columns:1fr}
  .nav-links{display:none}
  .auth-side{display:none}
  .sidebar{position:relative;height:auto}
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  .section{padding:48px 0}
  .hero{padding:58px 0}
  .hero h1{font-size:42px}
  .stats{grid-template-columns:1fr}
  .dashboard-main{padding:20px}
  .auth-main{padding:28px 20px}
}
/* Logo V2 - ícone transparente sem comprimir o wordmark */
.brand img{width:52px;height:52px;object-fit:contain;border-radius:0;background:transparent;padding:0;box-shadow:none}