:root {
  --color-tosca: #009688;
  --color-tosca-dark: #00796B;
  --color-mustard: #ffdb58;
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.2);
}

body {
  font-family: 'Inter', sans-serif;
  background-color: #f8f9fa;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(0, 128, 128, 0.04) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(255, 219, 88, 0.05) 0%, transparent 20%),
    linear-gradient(rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.8));
  color: #333;
  overflow-x: hidden;
  transition: background-color 0.3s, color 0.3s;
}

/* Glassmorphism */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

/* Custom Colors & Utilities */
.text-tosca { color: var(--color-tosca) !important; }
.bg-tosca { background-color: var(--color-tosca) !important; color: white !important; }
.bg-tosca:hover { background-color: var(--color-tosca-dark) !important; color: white !important; }
.hover-tosca:hover { color: var(--color-tosca) !important; }

.btn-tosca {
  background-color: var(--color-tosca);
  color: white;
  border: none;
  border-radius: 5px;
  transition: all 0.3s ease;
}
.btn-tosca:hover {
  background-color: var(--color-tosca-dark);
  color: white;
  transform: translateY(-1px);
}

/* Loading Overlay */
#loadingOverlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.8);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Animations */
.fade-in {
  animation: fadeIn 0.4s ease-in-out;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Banner Side */
.login-banner {
  background: var(--color-tosca);
  color: white;
  position: relative;
  overflow: hidden;
  min-height: 250px;
}
.login-banner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('https://images.unsplash.com/photo-1503676260728-1c00da094a0b?auto=format&fit=crop&q=80&w=800&h=1200') center/cover;
  opacity: 0.15;
}
.banner-content {
  position: relative;
  z-index: 2;
}

/* Forms */
.form-control:focus, .form-select:focus {
  border-color: var(--color-tosca);
  box-shadow: 0 0 0 0.25rem rgba(0, 150, 136, 0.25);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-tosca);
}

/* Sidebar Admin */
.admin-sidebar {
  width: 250px;
  background: #fff;
  border-right: 1px solid #eee;
  min-height: calc(100vh - 60px);
}
.admin-nav-link {
  color: #555;
  padding: 10px 15px;
  display: block;
  text-decoration: none;
  border-radius: 5px;
  margin-bottom: 5px;
  transition: all 0.2s;
}
.admin-nav-link:hover, .admin-nav-link.active {
  background: rgba(0, 150, 136, 0.1);
  color: var(--color-tosca);
  font-weight: 500;
}
.content-wrapper {
  flex: 1;
  background: transparent;
  padding: 20px;
}

/* IFrames */
.iframe-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 5000;
  background: #f8f9fa;
  display: flex;
  flex-direction: column;
}
.iframe-container iframe {
  flex: 1;
  width: 100%;
  border: none;
  background: white;
}
.iframe-header {
  background: #111827;
  color: white;
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}