/* Digital Signage Pro - High-End Zakelijk Design */

:root {
  /* PROFESSIONELE KLEUREN */
  --primary: #1e293b;
  --primary-hover: #334155;
  --primary-light: #475569;
  --accent: #0f172a;
  
  --bg-main: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-hover: #f8fafc;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --border-dark: #cbd5e1;
  
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
  
  /* Spacing */
  --sidebar-width: 280px;
  --sidebar-collapsed-width: 80px;
  --topbar-height: 70px;
  
  /* Shadows - subtiel en professioneel */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --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);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition: all 0.2s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* HIGH-END SIDEBAR */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-main);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transition: width 0.2s ease;
  box-shadow: var(--shadow-md);
}

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

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    width: auto;
    max-width: 100%;
    max-height: 100px;
    height: auto;
    object-fit: contain;
    display: block;
    margin: 0 auto;
}
  padding: 24px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-main);
  min-height: var(--topbar-height);
}

.sidebar-header .logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-header .logo img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.sidebar-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  letter-spacing: -0.3px;
}

.sidebar.collapsed .sidebar-header h2 {
  display: none;
}

.sidebar.collapsed .sidebar-header .logo img {
  height: 32px;
}

.sidebar-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 16px;
  padding: 8px;
  border-radius: 6px;
  transition: var(--transition);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.sidebar-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--border-dark);
  color: var(--text-primary);
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.sidebar-nav::-webkit-scrollbar {
  width: 6px;
}

.sidebar-nav::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar-nav::-webkit-scrollbar-thumb {
  background: var(--border-dark);
  border-radius: 3px;
}

.sidebar-nav::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  border-left: 3px solid transparent;
  margin: 2px 12px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-left-color: var(--primary);
}

.nav-item.active {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-left-color: var(--primary);
  font-weight: 600;
}

.nav-item .icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
  margin-right: 12px;
  flex-shrink: 0;
}

.nav-item .label {
  white-space: nowrap;
  overflow: hidden;
}

.sidebar.collapsed .nav-item .label {
  display: none;
}

.sidebar.collapsed .nav-item {
  justify-content: center;
  padding: 12px;
  margin: 2px 8px;
}

/* MAIN CONTENT */
.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left 0.2s ease;
  background: var(--bg-secondary);
  display: flex;
  flex-direction: column;
}

.sidebar.collapsed ~ .main-content {
  margin-left: var(--sidebar-collapsed-width);
}

/* HIGH-END TOP BAR */
.top-bar {
  background: var(--bg-main);
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
  height: var(--topbar-height);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.top-bar h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.5px;
}

.top-bar-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

/* CONTENT AREA */
.content {
  padding: 32px;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
  flex: 1;
}

/* HIGH-END CARDS */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--border-dark);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

/* PROFESSIONAL BUTTONS */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-sm);
}

.btn-primary {
  background: var(--primary);
  color: white;
  border: 1px solid var(--primary);
}

.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  box-shadow: var(--shadow);
}

.btn-secondary {
  background: var(--bg-main);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--border-dark);
}

/* PROFESSIONAL FOOTER */
.footer {
  background: var(--bg-main);
  border-top: 1px solid var(--border);
  padding: 20px 32px;
  text-align: center;
  color: var(--text-muted);
  font-size: 12px;
  margin-top: auto;
  width: 100%;
}

/* FORMS */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 6px;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 14px;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-main);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  transition: var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 41, 59, 0.1);
}

/* LOADING */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* MOBILE */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .content {
    padding: 20px;
  }
}

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

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

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

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