/* ==========================================================================
   Psychotherapie-Praxis-Management (Invoice Ninja Extender) - Styles
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Color Palette - Clinical Dark Slate & Cyan/Blue Accents */
  --bg-dark: #090d16;
  --bg-card: #111827;
  --bg-card-hover: #1f2937;
  --bg-sidebar: #0d131f;
  --bg-input: #1b2436;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(59, 130, 246, 0.4);

  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  --accent-primary: #3b82f6;
  --accent-primary-hover: #2563eb;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.2);

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: #2d3748;
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: #4a5568;
}

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

/* Sidebar */
.sidebar {
  width: 280px;
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.5rem 1rem;
  flex-shrink: 0;
  z-index: 20;
}

.brand-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0 0.5rem 1.5rem 0.5rem;
  border-bottom: 1px solid var(--border-color);
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.72rem;
  color: var(--accent-cyan);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 1.5rem;
  flex: 1;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav-item:hover {
  background-color: var(--bg-card-hover);
  color: #fff;
}

.nav-item.active {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--accent-primary);
  font-weight: 600;
  border-left: 3px solid var(--accent-primary);
}

.nav-item svg {
  width: 20px;
  height: 20px;
  stroke-width: 2;
}

.nav-badge {
  margin-left: auto;
  background-color: var(--bg-input);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.nav-item.active .nav-badge {
  background-color: var(--accent-primary);
  color: #fff;
}

/* Sidebar Footer (VPN & DSGVO Status) */
.vpn-status-card {
  background-color: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.vpn-indicator {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background-color: var(--accent-success);
  box-shadow: 0 0 8px var(--accent-success);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.1); }
  100% { opacity: 1; transform: scale(1); }
}

.vpn-info {
  display: flex;
  flex-direction: column;
}

.vpn-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-success);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.vpn-desc {
  font-size: 0.72rem;
  color: var(--text-muted);
}

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

/* Header */
.top-header {
  height: 70px;
  border-bottom: 1px solid var(--border-color);
  background-color: rgba(13, 19, 31, 0.8);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  z-index: 10;
}

.header-title-container {
  display: flex;
  flex-direction: column;
}

.page-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
}

.page-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  outline: none;
  font-family: inherit;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  background-color: var(--accent-primary-hover);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline-success {
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-success);
}

.btn-outline-success:hover {
  background-color: rgba(16, 185, 129, 0.2);
}

.btn-outline-cyan {
  background-color: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.3);
  color: var(--accent-cyan);
}

.btn-outline-cyan:hover {
  background-color: rgba(6, 182, 212, 0.2);
}

/* Search Input */
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box input {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.5rem 1rem 0.5rem 2.25rem;
  color: var(--text-main);
  font-size: 0.85rem;
  width: 220px;
  transition: all var(--transition-fast);
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-primary);
  width: 280px;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.search-box svg {
  position: absolute;
  left: 0.75rem;
  width: 16px;
  height: 16px;
  color: var(--text-muted);
}

/* Page Views */
.content-container {
  flex: 1;
  overflow-y: auto;
  padding: 2rem;
}

.page-view {
  display: none;
  animation: fadeIn 0.2s ease-in-out;
}

.page-view.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Stat Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.15);
}

.stat-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-blue { background: rgba(59, 130, 246, 0.15); color: var(--accent-primary); }
.stat-green { background: rgba(16, 185, 129, 0.15); color: var(--accent-success); }
.stat-amber { background: rgba(245, 158, 11, 0.15); color: var(--accent-warning); }
.stat-purple { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); }

.stat-content {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.stat-meta {
  font-size: 0.72rem;
  margin-top: 0.25rem;
}

.stat-meta.success { color: var(--accent-success); }
.stat-meta.warning { color: var(--accent-warning); }

/* Card Grid Layouts */
.section-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 1024px) {
  .section-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-body {
  padding: 1.5rem;
}

.card-body.p-0 {
  padding: 0;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.custom-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.875rem;
}

.custom-table th {
  background-color: rgba(13, 19, 31, 0.6);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}

.custom-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  vertical-align: middle;
}

.custom-table tbody tr {
  transition: background-color var(--transition-fast);
}

.custom-table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.custom-table tbody tr:last-child td {
  border-bottom: none;
}

/* Badges & Status */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
}

.badge-success { background: rgba(16, 185, 129, 0.15); color: var(--accent-success); border: 1px solid rgba(16, 185, 129, 0.3); }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: var(--accent-warning); border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-danger { background: rgba(239, 68, 68, 0.15); color: var(--accent-danger); border: 1px solid rgba(239, 68, 68, 0.3); }
.badge-blue { background: rgba(59, 130, 246, 0.15); color: var(--accent-primary); border: 1px solid rgba(59, 130, 246, 0.3); }
.badge-purple { background: rgba(139, 92, 246, 0.15); color: var(--accent-purple); border: 1px solid rgba(139, 92, 246, 0.3); }
.badge-cyan { background: rgba(6, 182, 212, 0.15); color: var(--accent-cyan); border: 1px solid rgba(6, 182, 212, 0.3); }
.badge-gray { background: rgba(156, 163, 175, 0.15); color: var(--text-muted); border: 1px solid rgba(156, 163, 175, 0.3); }

/* Patient / Ledger Specific Styles */
.patient-avatar {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #374151, #1f2937);
  color: var(--accent-primary);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  border: 1px solid var(--border-color);
}

.patient-info-cell {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.patient-name {
  font-weight: 600;
  color: #fff;
}

.patient-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.ledger-units-plus {
  color: var(--accent-success);
  font-weight: 700;
  font-family: var(--font-mono);
}

.ledger-units-minus {
  color: var(--accent-danger);
  font-weight: 700;
  font-family: var(--font-mono);
}

/* Quota Progress Bar */
.quota-bar-container {
  width: 100%;
  background-color: var(--bg-input);
  border-radius: var(--radius-full);
  height: 8px;
  overflow: hidden;
  margin-top: 0.35rem;
}

.quota-bar-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

.quota-good { background: linear-gradient(90deg, var(--accent-success), #34d399); }
.quota-warn { background: linear-gradient(90deg, var(--accent-warning), #fbbf24); }
.quota-danger { background: linear-gradient(90deg, var(--accent-danger), #f87171); }

/* Quick Action / Alert Banner */
.alert-banner {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.08));
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.alert-content {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.alert-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--accent-warning);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.alert-title {
  font-weight: 700;
  color: #fff;
  font-size: 0.95rem;
}

.alert-desc {
  font-size: 0.825rem;
  color: var(--text-muted);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 90%;
  max-width: 620px;
  box-shadow: var(--shadow-lg);
  transform: translateY(10px) scale(0.98);
  transition: transform 0.2s ease;
  overflow: hidden;
}

.modal-backdrop.active .modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: #fff;
}

.modal-body {
  padding: 1.5rem;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background-color: rgba(13, 19, 31, 0.4);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Form Controls */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.85rem;
  color: var(--text-main);
  font-size: 0.875rem;
  font-family: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  animation: slideInRight 0.3s ease;
}

.toast-success { border-left-color: var(--accent-success); }
.toast-warning { border-left-color: var(--accent-warning); }
.toast-danger { border-left-color: var(--accent-danger); }

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Code Preview / Log Box */
.log-terminal {
  background-color: #050811;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: #a7f3d0;
  max-height: 280px;
  overflow-y: auto;
  line-height: 1.6;
}

.log-line {
  margin-bottom: 0.25rem;
}
.log-time { color: var(--text-dim); }
.log-info { color: var(--accent-cyan); }
.log-success { color: var(--accent-success); }
.log-warn { color: var(--accent-warning); }

/* PDF Preview Frame */
.pdf-preview-box {
  background-color: #ffffff;
  color: #1e293b;
  border-radius: var(--radius-md);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  min-height: 480px;
}

.pdf-header {
  border-bottom: 2px solid #0284c7;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
}

.pdf-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #0f172a;
}

.pdf-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1.5rem;
  font-size: 0.85rem;
}

.pdf-table th, .pdf-table td {
  border: 1px solid #cbd5e1;
  padding: 0.5rem 0.75rem;
}

.pdf-table th {
  background-color: #f1f5f9;
  font-weight: 600;
}