/* Color palette: semantic naming */
:root {
  /* Brand colors */
  --color-brand-primary: #2d3142;
  --color-brand-secondary: #6e6e6e;
  --color-brand-accent: #85ef54;
  --color-brand-dark: #45cc06;
  
  --color-scrollbar-track: #e0e1dd;
  --color-scrollbar-thumb: #12920e;
  --color-scrollbar-hover: #1cb943;

  /* Text colors */
  --color-text-default: #22223b;
  --color-text-light: #ffffff;
  --color-text-dark: #12920e;
  --color-text-muted: #4f5d75;

  /* Background colors */
  --color-bg-light: #f7f7ff;
  --color-bg-muted: #e0e1dd;
  --color-card-bg: #e0e1dd3a;
  --color-bg-gradient-start: var(--color-brand-primary);
  --color-bg-gradient-end: var(--color-brand-secondary);

  /* Border & shadow */
  --color-border-default: #e1dddd;
  --color-border-gradient-start: #0bbb05;
  --color-border-gradient-end: #61fa87;
  /* --shadow-light: rgba(0, 0, 0, 0.1); */
  --shadow-light: #fefefe;
  
  --shadow-strong: rgba(117, 246, 255, 0.603);

  /* Spacing scale */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
}

/* Base styles */
body {
  font-family: Georgia, 'Times New Roman', serif;
  color: var(--color-text-default);
  background: var(--color-bg-light);
  line-height: 1.6;
}

/* Navbar */
.navbar {
  background: linear-gradient(
  135deg,
  var(--color-bg-gradient-start) 0%,
  var(--color-bg-gradient-end) 100%
  );
  box-shadow: 0 2px 20px var(--shadow-light);
}
.navbar-brand {
  color: var(--color-brand-dark) !important;
  font-weight: 700;
  font-size: 1.5rem;
}
.nav-link {
  color: var(--color-text-light) !important;
  transition: color 0.3s;
}
.nav-link:hover {
  color: var(--color-brand-accent) !important;
}

/* Hero */
.hero {
  background: linear-gradient(
  135deg,
  var(--color-bg-gradient-start) 0%,
  var(--color-bg-gradient-end) 100%
  );
  color: var(--color-text-light);
  padding: 10% 0;
  text-align: center;
  position: relative;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="dots" width="20" height="20" patternUnits="userSpaceOnUse"><circle cx="10" cy="10" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23dots)"/></svg>');
  opacity: 0.3;
}
.hero-content { position: relative; z-index: 1; }
.hero .btn-primary {
  color: var(--color-text-default);
  box-shadow: 0 4px 15px var(--shadow-light);
  background: var(--color-brand-accent);
  border: none;
  padding: var(--space-sm) var(--space-lg);
  border-radius: 30px;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 1px;
  transition: transform 0.3s;
}
.hero .btn-primary:hover {
  color: var(--color-text-light);
  box-shadow: 0 8px 25px var(--shadow-strong);
  transform: translateY(-3px);
  background: var(--color-brand-secondary);
  /* mark--- */
}

/* Stats */
.stats {
  background: linear-gradient(
  135deg,
  var(--color-text-light) 0%,
  var(--color-bg-muted) 100%
  );
  padding: 6% 0;
}
.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-brand-dark);
}
.stat-label {
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  color: var(--color-text-muted);
}

/* Custom button for cards and sections */
.btn-custom {
  background: var(--color-brand-accent) !important;
  border: none;
  padding: var(--space-sm) var(--space-lg);
  border-radius: 30px;
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 1px;
  box-shadow: 0 4px 15px var(--shadow-light);
  transition: transform 0.3s, box-shadow 0.3s;
}
.btn-custom:hover {
  color: var(--color-text-light) !important;
  transform: translateY(-3px);
  box-shadow: 0 8px 25px var(--shadow-strong);
  background: var(--color-brand-secondary) !important;
}


.section-card {
  background: var(--color-card-bg);
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
  transition: all 0.4s ease;
  height: 100%;
  border: 1px solid var(--color-border-default);
  overflow: hidden;
}

.section-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.15);
  border-color: var(--color-border-gradient-start);
}

.section-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-border-gradient-start) 0%, var(--color-border-gradient-end) 100%);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.section-card:hover::before {
  transform: scaleX(1);
}

.card-icon {
  font-size: 3.5rem;
  color: var(--color-border-gradient-start);
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Sections */
.section-title {
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-brand-primary);
  position: relative;
  margin-bottom: var(--space-md);
}
.section-title::after {
  content: "";
  position: absolute;
  bottom: -0.5rem;
  left: 50%;
  transform: translateX(-50%);
  width: 4rem;
  height: 3px;
  background: var(--color-brand-accent);
}

/* Cards */
.card-custom {
  position: relative;
  border: 1px solid var(--color-border-default);
  border-radius: 1.25rem;
  box-shadow: 0 10px 30px var(--shadow-light);
  overflow: hidden;
  transition: transform 0.4s, box-shadow 0.4s, border-color 0.4s;
}
.card-custom:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px var(--shadow-strong);
  border-color: var(--color-brand-accent);
}
.card-custom::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-brand-accent);
  transform: scaleX(0);
  transition: transform 0.3s;
}
.card-custom:hover::before {
  transform: scaleX(1);
}
.card-icon {
  font-size: 3rem;
  color: var(--color-brand-accent);
  margin-bottom: var(--space-md);
}

/* Footer */
.footer {
  background: linear-gradient(
  135deg,
  var(--color-bg-gradient-start) 0%,
  var(--color-bg-gradient-end) 100%
  );
  color: var(--color-text-light);
  padding: 4% 0;
}
.footer h5 {
  color: var(--color-brand-dark);
}
.footer a {
  font-size: 1.2rem;
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 0.3s;
}
.footer i {
  font-size: 2.0rem;
  padding: 0.5rem 0.5rem;
}
.footer a:hover {
  color: var(--color-brand-accent);
}

/* .social-links a {
  color: var(--white);
  font-size: 1.8rem;
  margin: 0 15px;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.social-links a:hover {
  color: var(--color-border-gradient-start);
  transform: translateY(-3px);
}
  */
/* Utility */
.text-center { text-align: center !important; }
.mb-4 { margin-bottom: var(--space-lg) !important; }
.mb-5 { margin-bottom: 3rem !important; }
@media (max-width: 768px) {
  .hero { padding: 15% 0; }
  .stat-number { font-size: 2rem; }
  .section-title { font-size: 1.75rem; }
}

/* Elegant scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--color-scrollbar-thumb);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-scrollbar-hover);
}