:root {
  --primary: #4A5D23; /* Forest Green */
  --primary-dark: #37461A;
  --secondary: #8B5A2B; /* Saddle Brown */
  --accent: #D4A373; /* Sand */
  --background: #F9F6F0; /* Warm White */
  --surface: #FFFFFF;
  --text: #2C2C2C;
  --muted: #737373;
  --border: #E2DDD3;
  --success: #52796F;
  --warning: #E9C46A;
  --danger: #E76F51;

  --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-heading: 'Georgia', serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 24px rgba(0,0,0,0.12);

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--background);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: normal;
  color: var(--text);
  margin-bottom: var(--spacing-sm);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover {
  color: var(--primary-dark);
}

/* Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.text-center { text-align: center; }
.text-muted { color: var(--muted); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s ease;
  font-family: var(--font-main);
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--primary);
  color: white;
}
.btn-primary:hover {
  background-color: var(--primary-dark);
}

.btn-secondary {
  background-color: var(--secondary);
  color: white;
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background-color: rgba(74, 93, 35, 0.05);
}

.btn-block {
  width: 100%;
}

/* Cards */
.card {
  background-color: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}
.card:hover {
  box-shadow: var(--shadow-md);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}
.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  font-size: 0.9rem;
}
.form-control {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-main);
  font-size: 1rem;
  transition: border-color 0.2s;
}
.form-control:focus {
  outline: none;
  border-color: var(--primary);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-success { background-color: rgba(82,121,111,0.1); color: var(--success); }
.badge-warning { background-color: rgba(233,196,106,0.1); color: #B08D25; }
.badge-danger { background-color: rgba(231,111,81,0.1); color: var(--danger); }
.badge-neutral { background-color: var(--border); color: var(--muted); }

/* Header */
.header {
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--primary);
  font-weight: bold;
}
.nav-links {
  display: flex;
  gap: var(--spacing-lg);
}
.nav-links a {
  color: var(--text);
  font-weight: 500;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--primary);
}

/* Sidebar (Admin) */
.admin-layout {
  display: flex;
  min-height: 100vh;
}
.sidebar {
  width: 250px;
  background-color: var(--surface);
  border-right: 1px solid var(--border);
  padding: var(--spacing-lg) 0;
}
.sidebar-link {
  display: block;
  padding: 12px var(--spacing-lg);
  color: var(--text);
  font-weight: 500;
  border-left: 3px solid transparent;
}
.sidebar-link:hover, .sidebar-link.active {
  background-color: rgba(74, 93, 35, 0.05);
  color: var(--primary);
  border-left-color: var(--primary);
}
.admin-content {
  flex: 1;
  padding: var(--spacing-lg);
  background-color: var(--background);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--spacing-md);
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* Image Previews & Containment */
.img-preview {
  max-width: 100%;
  max-height: 240px;
  width: auto;
  height: auto;
  border-radius: var(--radius-md, 10px);
  object-fit: cover;
  border: 1px solid var(--border, #E2DDD3);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  display: block;
  margin-top: 6px;
  margin-bottom: 10px;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; } /* Mobile menu implementation needed */
  .admin-layout { flex-direction: column; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); display: flex; overflow-x: auto; padding: var(--spacing-sm); }
  .sidebar-link { padding: 8px 12px; border-left: none; border-bottom: 3px solid transparent; white-space: nowrap; }
  .sidebar-link:hover, .sidebar-link.active { border-left-color: transparent; border-bottom-color: var(--primary); }
}