/* ==========================================
   SERVICE-APP — Design System
   Modern, mobile-first PWA for technicians
   ========================================== */

:root {
  /* Colors */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-card: rgba(30, 41, 59, 0.85);
  --bg-card-hover: rgba(51, 65, 85, 0.9);
  --bg-input: rgba(15, 23, 42, 0.6);
  --border: rgba(148, 163, 184, 0.15);
  --border-focus: #3b82f6;

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-glow: rgba(59, 130, 246, 0.3);
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.3);
  --warning: #f59e0b;
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.2);

  /* Spacing */
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;

  /* Transitions */
  --transition: all 0.2s ease;
  --transition-slow: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ==========================================
   Status Bar
   ========================================== */
#status-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
}

#sync-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
}

#sync-icon {
  font-size: 0.6rem;
  color: var(--success);
  animation: pulse 2s infinite;
}

#sync-icon.offline {
  color: var(--danger);
  animation: none;
}

#sync-icon.syncing {
  color: var(--warning);
  animation: spin 1s linear infinite;
}

#sync-text {
  color: var(--text-secondary);
}

#user-info {
  color: var(--text-muted);
  font-size: 0.75rem;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

/* ==========================================
   Navigation
   ========================================== */
#main-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-around;
  padding: 6px 8px 12px;
  background: rgba(15, 23, 42, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
}

#main-nav.hidden {
  display: none;
}

.nav-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.65rem;
  font-family: inherit;
  cursor: pointer;
  padding: 6px 16px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-btn svg {
  width: 22px;
  height: 22px;
}

.nav-btn.active {
  color: var(--accent-light);
}

.nav-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

/* ==========================================
   Main Content
   ========================================== */
#app-content {
  padding: 52px 16px 80px;
  max-width: 600px;
  margin: 0 auto;
  min-height: 100dvh;
}

.page-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  gap: 16px;
  color: var(--text-secondary);
}

/* ==========================================
   Cards
   ========================================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition);
}

.card-clickable {
  cursor: pointer;
}

.card-clickable:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-glow);
  transform: translateY(-1px);
}

.card-clickable:active {
  transform: translateY(0);
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

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

.card-meta {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.card-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-clickable-area {
  cursor: pointer;
}

.card-actions {
  display: flex;
  gap: 6px;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}

.btn-icon {
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  cursor: pointer;
  font-size: 0.8rem;
  transition: var(--transition);
}

.btn-icon:hover {
  border-color: var(--accent);
  background: rgba(59, 130, 246, 0.1);
}

.delete-customer-btn:hover,
.delete-system-btn:hover {
  border-color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
}

/* ==========================================
   Page Header
   ========================================== */
.page-header {
  margin-bottom: 20px;
}

.page-header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 4px;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--accent-light);
  font-size: 0.85rem;
  font-family: inherit;
  cursor: pointer;
  padding: 4px 0;
  margin-bottom: 8px;
  transition: var(--transition);
}

.back-btn:hover {
  color: var(--text-primary);
}

/* ==========================================
   Forms
   ========================================== */
.form-section {
  margin-bottom: 24px;
}

.form-section-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}

.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder {
  color: var(--text-muted);
}

.form-group textarea {
  resize: vertical;
  min-height: 60px;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
  padding-right: 36px;
}

/* OK/Action field */
.field-ok-action {
  display: flex;
  align-items: center;
  gap: 8px;
}

.field-ok-action label {
  flex: 1;
  margin-bottom: 0;
  font-size: 0.82rem;
  color: var(--text-primary);
}

.ok-btn,
.action-btn {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
}

.ok-btn.selected {
  background: var(--success);
  border-color: var(--success);
  color: white;
  box-shadow: 0 0 10px var(--success-glow);
}

.action-btn.selected {
  background: var(--warning);
  border-color: var(--warning);
  color: #1e293b;
}

/* Boolean toggle */
.toggle-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.toggle-wrap label {
  flex: 1;
  margin-bottom: 0;
}

.toggle-group {
  display: flex;
  gap: 4px;
}

.toggle-btn {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
}

.toggle-btn.yes.selected {
  background: var(--success);
  border-color: var(--success);
  color: white;
}

.toggle-btn.no.selected {
  background: var(--danger);
  border-color: var(--danger);
  color: white;
}

/* ==========================================
   Buttons
   ========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #2563eb);
  color: white;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
  box-shadow: 0 6px 25px var(--accent-glow);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #059669);
  color: white;
  box-shadow: 0 4px 15px var(--success-glow);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-light);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger), #dc2626);
  color: white;
  box-shadow: 0 4px 15px var(--danger-glow);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.8rem;
}

/* ==========================================
   Login Page
   ========================================== */
.login-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  padding: 24px;
}

.login-logo {
  font-size: 3rem;
  margin-bottom: 8px;
}

.login-title {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 32px;
}

.login-form {
  width: 100%;
  max-width: 360px;
}

.login-form .form-group {
  margin-bottom: 16px;
}

.login-error {
  color: var(--danger);
  font-size: 0.8rem;
  text-align: center;
  margin-bottom: 12px;
  min-height: 1.2em;
}

/* ==========================================
   Search
   ========================================== */
.search-box {
  position: relative;
  margin-bottom: 16px;
}

.search-box input {
  width: 100%;
  padding: 10px 14px 10px 38px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
}

.search-box input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.search-box::before {
  content: '🔍';
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.85rem;
}

/* ==========================================
   Badges & Tags
   ========================================== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 0.7rem;
  font-weight: 600;
}

.badge-synced {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-pending {
  background: rgba(245, 158, 11, 0.15);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-draft {
  background: rgba(148, 163, 184, 0.15);
  color: var(--text-secondary);
  border: 1px solid rgba(148, 163, 184, 0.3);
}

/* ==========================================
   Spinner
   ========================================== */
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* ==========================================
   Toast
   ========================================== */
#toast-container {
  position: fixed;
  top: 56px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 90%;
  max-width: 400px;
}

.toast {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
  backdrop-filter: blur(10px);
}

.toast-success {
  background: rgba(16, 185, 129, 0.9);
  color: white;
}

.toast-error {
  background: rgba(239, 68, 68, 0.9);
  color: white;
}

.toast-info {
  background: rgba(59, 130, 246, 0.9);
  color: white;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes toastOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }

  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}

/* ==========================================
   Action input row (for ok/action + date)
   ========================================== */
.action-row {
  display: none;
  gap: 8px;
  margin-top: 6px;
}

.action-row.visible {
  display: flex;
}

.action-row input {
  flex: 1;
  padding: 6px 10px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-family: inherit;
  outline: none;
}

.action-row input:focus {
  border-color: var(--border-focus);
}

/* ==========================================
   Report detail
   ========================================== */
.report-detail-section {
  margin-bottom: 20px;
}

.report-detail-section h3 {
  font-size: 0.85rem;
  color: var(--accent-light);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}

.report-value-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.05);
  font-size: 0.82rem;
}

.report-value-label {
  color: var(--text-secondary);
  flex: 1;
}

.report-value-data {
  color: var(--text-primary);
  font-weight: 500;
  text-align: right;
}

/* ==========================================
   Empty state
   ========================================== */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.empty-state-text {
  font-size: 0.9rem;
}

/* ==========================================
   Utility
   ========================================== */
.hidden {
  display: none !important;
}

.mb-8 {
  margin-bottom: 8px;
}

.mb-16 {
  margin-bottom: 16px;
}

.mt-16 {
  margin-top: 16px;
}

.mt-24 {
  margin-top: 24px;
}

.text-center {
  text-align: center;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

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

/* ==========================================
   Master data info card
   ========================================== */
.master-data-card {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.05));
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 20px;
}

.master-data-card h3 {
  font-size: 0.8rem;
  color: var(--accent-light);
  margin-bottom: 8px;
}

.master-data-row {
  display: flex;
  gap: 8px;
  font-size: 0.78rem;
  padding: 3px 0;
}

.master-data-label {
  color: var(--text-muted);
  min-width: 120px;
}

.master-data-value {
  color: var(--text-primary);
}

/* ==========================================
   Button row for form
   ========================================== */
.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  padding-bottom: 20px;
}

.form-actions .btn {
  flex: 1;
}

/* ==========================================
   Add Customer/System Form
   ========================================== */
.btn-add {
  margin-bottom: 16px;
  padding: 10px 20px;
  font-size: 0.85rem;
}

.add-form {
  margin-bottom: 16px;
  animation: fadeIn 0.25s ease;
}

.add-form .form-section {
  background: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 0 20px var(--accent-glow);
}

.form-row {
  display: flex;
  gap: 12px;
}

.form-row .form-group {
  flex: 1;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 400px) {
  .form-row {
    flex-direction: column;
    gap: 0;
  }
}