:root {
  --primary: #16A34A;      /* Emerald/Green Adiwiyata */
  --primary-light: #4ADE80; 
  --secondary: #D97706;    /* Earthy/Amber tone */
  --dark: #064E3B;         /* Very dark green for text/headers */
  --light: #F0FDF4;        /* Very light green tint for bg */
  --white: #FFFFFF;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
  background-color: var(--light);
  color: var(--dark);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }

/* Navbar */
.navbar {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  padding: 1rem 0;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--primary);
  transition: var(--transition);
}

.nav-links a:hover { color: var(--primary); }
.nav-links a:hover::after { width: 100%; }

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
}

/* Hero Slider Section */
.hero-slider {
  position: relative;
  height: 65vh;
  min-height: 450px;
  max-height: 600px;
  overflow: hidden;
  background: var(--dark);
  max-width: 1200px;
  margin: 2rem auto;
  border-radius: 1.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  width: calc(100% - 3rem);
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.8s ease-in-out;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  z-index: 1;
}

.slide.active {
  opacity: 1;
  z-index: 2;
}

.slide-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5); /* Dark overlay */
  z-index: 1;
}

.slide-content {
  position: relative;
  z-index: 2;
  color: var(--white);
  max-width: 800px;
}

.slide-content h1 {
  font-size: 3.5rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
  transform: translateY(30px);
  opacity: 0;
  transition: all 0.8s ease 0.3s;
}

.slide-content p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
  transform: translateY(30px);
  opacity: 0;
  transition: all 0.8s ease 0.5s;
}

.slide-content .btn-group {
  transform: translateY(30px);
  opacity: 0;
  transition: all 0.8s ease 0.7s;
}

.slide.active .slide-content h1,
.slide.active .slide-content p,
.slide.active .slide-content .btn-group {
  transform: translateY(0);
  opacity: 1;
}

.slider-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.2);
  color: white;
  border: none;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10;
  font-size: 1.5rem;
  transition: var(--transition);
  backdrop-filter: blur(5px);
}

.slider-btn:hover {
  background: var(--primary);
}

.prev-btn { left: 2rem; }
.next-btn { right: 2rem; }

.slider-dots {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  gap: 0.5rem;
}

.dot {
  width: 12px;
  height: 12px;
  background: rgba(255,255,255,0.5);
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition);
}

.dot.active {
  background: var(--primary-light);
  transform: scale(1.3);
}

/* Cards Section */
.section {
  padding: 5rem 0;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  color: var(--dark);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--white);
  border-radius: 1rem;
  padding: 2rem;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid var(--glass-border);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.card-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--dark);
}

/* Footer */
footer {
  background: var(--dark);
  color: var(--white);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-col h3 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--primary-light);
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.75rem; }
.footer-col a {
  color: #D1D5DB;
  text-decoration: none;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--white); }

.copyright {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: #9CA3AF;
}

/* Form Styles */
.form-group { margin-bottom: 1.5rem; }
.form-label { display: block; margin-bottom: 0.5rem; font-weight: 500; }
.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid #D1D5DB;
  border-radius: 0.5rem;
  transition: var(--transition);
  font-family: inherit;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
}

/* Auth Pages */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, #1E1B4B 100%);
}

.auth-card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  padding: 3rem;
  border-radius: 1.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

/* Dashboard Layout */
.dashboard-layout {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  width: 250px;
  background: var(--dark);
  color: var(--white);
  padding: 2rem 0;
  display: flex;
  flex-direction: column;
}
.sidebar-header {
  padding: 0 2rem 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.sidebar-menu { margin-top: 2rem; list-style: none; }
.sidebar-menu li a {
  display: block;
  padding: 1rem 2rem;
  color: #D1D5DB;
  text-decoration: none;
  transition: var(--transition);
}
.sidebar-menu li a:hover, .sidebar-menu li a.active {
  background: rgba(255,255,255,0.1);
  color: var(--white);
  border-left: 4px solid var(--primary);
}
.main-content {
  flex: 1;
  background: var(--light);
  padding: 2rem;
  overflow-y: auto;
}