/* Visão Clara - Unique Mint-Neon Sticky Sidebar Design 2026 */
:root {
  --primary: #22c55e;
  --accent: #14b8a6;
  --bg: #f0fdf4;
  --surface: #ffffff;
  --text: #052e16;
  --muted: #4b5563;
  --neon-glow: 0 0 18px rgba(34, 197, 94, 0.35);
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
}

/* Sticky Sidebar Navigation */
.sidebar-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100vh;
  background: white;
  border-right: 1px solid #dcfce7;
  padding: 2.5rem 1.75rem;
  z-index: 50;
  overflow-y: auto;
}

.sidebar-nav .logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.sidebar-nav nav a {
  display: block;
  padding: 0.85rem 1.25rem;
  margin-bottom: 0.35rem;
  border-radius: 10px;
  font-weight: 500;
  color: #166534;
  transition: all 0.2s ease;
}

.sidebar-nav nav a:hover,
.sidebar-nav nav a.active {
  background: #dcfce7;
  color: #166534;
  transform: translateX(4px);
}

/* Main Content Area */
.main-content {
  margin-left: 260px;
  padding: 0 3rem;
  max-width: 1100px;
}

/* Hero - Centered with neon accent */
.hero {
  padding: 7rem 0 6rem;
  text-align: center;
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 3px;
  background: linear-gradient(to right, #22c55e, #14b8a6);
  border-radius: 9999px;
}

/* Article Cards - Clean with thin border, no heavy shadow */
.article-card {
  background: white;
  border: 1px solid #dcfce7;
  border-radius: 14px;
  padding: 2rem;
  transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
  margin-bottom: 1.5rem;
}

.article-card:hover {
  border-color: #22c55e;
  box-shadow: 0 10px 15px -3px rgb(16 185 129 / 0.1);
  transform: translateY(-4px);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-primary {
  background: #052e16;
  color: white;
  box-shadow: 0 4px 6px -1px rgb(5 46 22 / 0.2);
}

.btn-primary:hover {
  background: #166534;
  transform: translateY(-2px);
  box-shadow: var(--neon-glow);
}

.btn-outline {
  border: 2px solid #166534;
  color: #166534;
}

.btn-outline:hover {
  background: #166534;
  color: white;
}

/* Forms */
input, textarea {
  width: 100%;
  padding: 15px 18px;
  border: 2px solid #dcfce7;
  border-radius: 12px;
  font-size: 1rem;
  transition: border-color 0.2s ease;
}

input:focus, textarea:focus {
  outline: none;
  border-color: #22c55e;
}

/* Section spacing */
section {
  padding: 4.5rem 0;
}

/* Neon accent text */
.neon-accent {
  color: #22c55e;
  text-shadow: var(--neon-glow);
}

/* Responsive */
@media (max-width: 900px) {
  .sidebar-nav {
    display: none;
  }
  .main-content {
    margin-left: 0;
    padding: 0 1.5rem;
  }
}