:root {
  --bg: #0f0f0f;
  --card: #1a1a1a;
  --text: #f5f5f5;
  --text-muted: #a1a1a1;
  --border: #2a2a2a;
  --primary: #22c55e;
}

body.light {
  --bg: #f5f5f5;
  --card: #ffffff;
  --text: #0f0f0f;
  --text-muted: #525252;
  --border: #e5e5e5;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
}

.hidden { display: none !important; }


/* Landing Page */
.landing {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
}

.landing-header {
  padding: 20px 0;
  width: 100%;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo-box {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-box .logo {
  width: 40px;
  height: 40px;
}

.logo-box h1 {
  margin: 0;
  font-size: 1.5rem;
}

.btn-login-topo {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  padding: 10px 18px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  transition: 0.2s;
}

.btn-login-topo:hover {
  background: rgba(255,255,255,0.08);
}

.landing-main {
  flex: 1;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 20px;
}

.hero {
  text-align: center;
  padding: 60px 20px;
}

.hero h2 {
  font-size: 2.5rem;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--primary);
  color: #0f0f0f;
  padding: 16px 32px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1.1rem;
  text-decoration: none;
  margin-top: 24px;
  transition: 0.2s;
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 217, 107, 0.3);
}

.btn-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  padding: 60px 20px;
}

.feature {
  background: var(--card);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.feature h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.feature p {
  color: var(--text-muted);
  line-height: 1.6;
}

.landing-footer {
  text-align: center;
  padding: 30px 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .hero h2 {
    font-size: 1.8rem;
  }
  .hero p {
    font-size: 1rem;
  }
  
  .header-content {
    padding: 0 16px;
  }
  
  .logo-box h1 {
    font-size: 1.2rem;
  }
  
  .btn-cta {
    padding: 14px 24px;
    font-size: 1rem;
  }
}