:root {
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-hover: #f1f5f9;
  --border-color: #e2e8f0;
  --accent-color: #0d9488;
  --accent-color-hover: #0f766e;
  --accent-green: #10b981;
  --accent-care: #f43f5e;
  --accent-glow: rgba(13, 148, 136, 0.22);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --sidebar-dark: #020617;
  
  --sidebar-w: 260px;
  --sidebar-w-collapsed: 80px;
  --transition-speed: 0.3s;
}

body {
  background-color: var(--bg-main) !important;
  color: var(--text-main) !important;
  font-family: "Inter", sans-serif;
  font-size: 16px;
  margin: 0;
  overflow-x: hidden;
}

/* Glassmorphism Classes */
.glass-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
}

/* Sidebar Layout Base */
.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

/* Sidebar */
.app-sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-color);
  transition: width var(--transition-speed) ease;
  z-index: 100;
  box-shadow: 2px 0 10px rgba(0,0,0,0.02);
}

.app-sidebar.collapsed {
  width: var(--sidebar-w-collapsed);
}

.sidebar-header {
  height: 70px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-color);
  gap: 12px;
}

.sidebar-brand-logo {
  width: 44px;
  height: 34px;
  object-fit: contain;
  flex-shrink: 0;
  display: block;
}

.sidebar-header .logo-text {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0;
  background: linear-gradient(to right, var(--accent-color), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: opacity 0.2s;
  white-space: nowrap;
}

.app-sidebar.collapsed .sidebar-header {
  justify-content: center;
  padding: 0;
}

.app-sidebar.collapsed .sidebar-header .logo-text {
  opacity: 0;
  pointer-events: none;
  width: 0;
  overflow: hidden;
}

.nav-links {
  flex: 1;
  padding: 20px 12px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-links::-webkit-scrollbar { width: 4px; }
.nav-links::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.1); border-radius: 4px; }

.app-nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s;
  white-space: nowrap;
  overflow: hidden;
}

.app-nav-item:hover, .app-nav-item.active {
  background: var(--bg-surface-hover);
  color: var(--accent-color);
  text-decoration: none;
}
.app-nav-item.active {
  background: rgba(2, 132, 199, 0.08);
  color: var(--accent-color);
  border: 1px solid rgba(2, 132, 199, 0.15);
}

.app-nav-item i {
  font-size: 20px;
  width: 24px;
  text-align: center;
}

.app-nav-item span.menu-text {
  transition: opacity var(--transition-speed);
}

.app-sidebar.collapsed .app-nav-item span.menu-text {
  opacity: 0;
}

.sidebar-footer {
  padding: 20px 12px;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Main Area */
.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-main);
}

.top-bar {
  height: 70px;
  padding: 0 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.top-bar-brand-logo {
  width: 50px;
  height: 36px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.top-bar-brand-text {
  font-weight: 700;
  font-size: 19px;
  color: var(--text-main);
  white-space: nowrap;
}

.menu-toggle-btn {
  background: rgba(0,0,0,0.02);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  width: 40px;
  height: 40px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.2s;
}
.menu-toggle-btn:hover { background: rgba(0,0,0,0.05); color: var(--accent-color); }

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Buttons and Controls */
.tech-btn {
  background: linear-gradient(135deg, var(--accent-color), var(--accent-color-hover));
  color: white !important;
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px var(--accent-glow);
  text-decoration: none;
}
.tech-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.tech-btn-secondary {
  background: rgba(13, 148, 136, 0.08);
  color: var(--accent-color-hover) !important;
  border: 1px solid rgba(13, 148, 136, 0.25);
  padding: 10px 20px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}
.tech-btn-secondary:hover {
  background: rgba(13, 148, 136, 0.14);
}

.content-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 30px;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .app-sidebar {
    position: fixed;
    transform: translateX(-100%);
    box-shadow: 10px 0 30px rgba(0,0,0,0.1);
  }
  .app-sidebar.mobile-open {
    transform: translateX(0);
    width: 280px;
  }
  .app-main { width: 100vw; }
}

/* Input Fields overrides */
.form-control, .form-select {
  background: rgba(255,255,255,0.8) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-main) !important;
  border-radius: 8px;
}
.form-control:focus, .form-select:focus {
  background: #ffffff !important;
  border-color: var(--accent-color) !important;
  box-shadow: 0 0 0 4px var(--accent-glow) !important;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  letter-spacing: 0;
  color: var(--text-main);
}