:root {
  --navy: #10243a;
  --navy-light: #183653;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
  --background: #f3f6fa;
  --surface: #ffffff;
  --text: #172b43;
  --muted: #718096;
  --border: #e3eaf2;
  --green: #15803d;
  --red: #dc2626;
  --orange: #c56a08;
  --shadow: 0 8px 28px rgba(20, 43, 69, 0.07);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--background);
  color: var(--text);
  font-size: 14px;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

[hidden] {
  display: none !important;
}

/* Header */

.topbar {
  min-height: 68px;
  padding: 0 26px;
  background: var(--navy);
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark,
.login-icon {
  height: 40px;
  width: 40px;
  border-radius: 11px;
  background: #2f80ed;
  display: grid;
  place-items: center;
  color: white;
  font-weight: 800;
  font-size: 21px;
}

.brand-name {
  font-size: 16px;
  font-weight: 700;
}

.brand-subtitle {
  font-size: 11px;
  color: #b8c9dc;
  margin-top: 3px;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-pill {
  font-size: 11px;
  padding: 7px 11px;
  border-radius: 20px;
  background: rgba(255,255,255,0.12);
  color: #e7f2ff;
}

.install-button,
.logout-button {
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 7px;
  padding: 9px 13px;
  color: white;
  background: transparent;
}

.install-button:hover,
.logout-button:hover {
  background: rgba(255,255,255,0.12);
}

/* Login */

.login-screen {
  min-height: calc(100vh - 68px);
  display: grid;
  place-items: center;
  padding: 28px 16px;
  background:
    radial-gradient(circle at 20% 20%, #dceaff, transparent 38%),
    radial-gradient(circle at 80% 80%, #e0e9f7, transparent 35%),
    var(--background);
}

.login-card {
  width: 100%;
  max-width: 410px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 34px;
}

.login-icon {
  width: 52px;
  height: 52px;
  font-size: 27px;
  margin-bottom: 20px;
}

.login-card h1 {
  margin: 0 0 7px;
  font-size: 25px;
}

.login-card > p {
  color: var(--muted);
  margin: 0 0 25px;
}

.login-card label,
.form-field label {
  display: block;
  font-weight: 600;
  margin: 15px 0 7px;
}

.login-card input,
.form-field input,
.form-field select,
.form-field textarea,
.search-input {
  width: 100%;
  border: 1px solid #d6dfeb;
  border-radius: 8px;
  background: white;
  padding: 11px 12px;
  outline: none;
  color: var(--text);
  min-height: 42px;
}

.login-card input:focus,
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus,
.search-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.10);
}

.primary-button {
  width: 100%;
  border: 0;
  border-radius: 8px;
  padding: 12px 16px;
  margin-top: 22px;
  color: white;
  background: var(--blue);
  font-weight: 700;
}

.primary-button:hover {
  background: var(--blue-dark);
}

.message {
  min-height: 20px;
  color: var(--red);
  font-size: 12px;
  margin-top: 12px !important;
}

.login-footer {
  border-top: 1px solid var(--border);
  margin-top: 20px;
  padding-top: 15px;
  text-align: center;
  color: var(--muted);
  font-size: 11px;
}

/* Application layout */

#mainScreen {
  display: flex;
  min-height: calc(100vh - 68px);
}

.sidebar {
  width: 235px;
  flex: 0 0 235px;
  background: white;
  border-right: 1px solid var(--border);
  padding: 22px 13px;
}

.sidebar-heading {
  color: #94a3b8;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 14px 12px 9px;
}

.nav-button {
  width: 100%;
  border: 0;
  background: transparent;
  color: #53657a;
  text-align: left;
  padding: 11px 12px;
  margin: 2px 0;
  border-radius: 8px;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-button span {
  width: 20px;
  text-align: center;
  font-size: 17px;
}

.nav-button:hover {
  background: #f0f5fb;
  color: var(--blue);
}

.nav-button.active {
  background: #eaf2ff;
  color: var(--blue);
  font-weight: 700;
}

.workspace {
  min-width: 0;
  flex: 1;
  padding: 27px 30px;
}

.page-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  margin-bottom: 25px;
}

.breadcrumb {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 8px;
}

.breadcrumb span {
  color: var(--blue);
}

.page-heading h1 {
  margin: 0;
  font-size: 25px;
  font-weight: 750;
}

.page-heading p {
  color: var(--muted);
  margin: 6px 0 0;
  font-size: 13px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-info strong,
.user-info small {
  display: block;
}

.user-info small {
  color: var(--muted);
  margin-top: 3px;
}

.avatar {
  width: 39px;
  height: 39px;
  display: grid;
  place-items: center;
  background: #e7efff;
  color: var(--blue);
  border-radius: 50%;
  font-weight: 800;
}

.page-content {
  width: 100%;
}

/* Cards and panels */

.card,
.panel,
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 11px;
  box-shadow: 0 3px 12px rgba(20,43,69,0.025);
}

.card,
.panel {
  padding: 19px;
}

.panel {
  margin-bottom: 18px;
}

.panel h2,
.card h2 {
  font-size: 15px;
  margin: 0 0 16px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 15px;
  margin-bottom: 20px;
}

.stat-card {
  padding: 19px;
  min-height: 118px;
}

.stat-label {
  font-size: 12px;
  color: var(--muted);
}

.stat-value {
  font-size: 28px;
  font-weight: 800;
  margin-top: 13px;
}

.stat-note {
  font-size: 11px;
  color: var(--muted);
  margin-top: 5px;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 17px;
}

.loading-panel,
.empty-state {
  padding: 35px 20px;
  text-align: center;
  color: var(--muted);
  background: white;
  border: 1px solid var(--border);
  border-radius: 10px;
}

/* Forms */

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
}

.form-field {
  min-width: 0;
}

.form-field.full-width {
  grid-column: 1 / -1;
}

.form-field textarea {
  min-height: 90px;
  resize: vertical;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.action-button {
  border: 0;
  border-radius: 7px;
  padding: 10px 17px;
  background: var(--blue);
  color: white;
  font-weight: 650;
}

.action-button:hover {
  background: var(--blue-dark);
}

.secondary-button {
  border: 1px solid var(--border);
  background: white;
  color: var(--text);
  border-radius: 7px;
  padding: 10px 15px;
}

.danger-button {
  border: 0;
  background: #fee2e2;
  color: #b91c1c;
  border-radius: 7px;
  padding: 9px 13px;
}

/* Tables */

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: white;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 600px;
}

th,
td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}

th {
  background: #f7f9fc;
  color: #64748b;
  font-weight: 700;
  white-space: nowrap;
}

tbody tr:hover {
  background: #f8fbff;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.search-input {
  max-width: 330px;
  margin-bottom: 13px;
}

/* Status labels */

.badge {
  display: inline-block;
  padding: 5px 9px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 700;
}

.badge-success {
  background: #dcfce7;
  color: #166534;
}

.badge-warning {
  background: #fef3c7;
  color: #92400e;
}

.badge-danger {
  background: #fee2e2;
  color: #991b1b;
}

.badge-info {
  background: #dbeafe;
  color: #1e40af;
}

/* Voice and scanner */

.voice-panel,
.scanner-panel {
  padding: 25px;
  text-align: center;
  background: white;
  border: 1px solid var(--border);
  border-radius: 11px;
}

.voice-button {
  height: 76px;
  width: 76px;
  border: 0;
  border-radius: 50%;
  color: white;
  background: var(--blue);
  font-size: 27px;
  margin: 20px auto;
  display: grid;
  place-items: center;
}

.voice-button.listening {
  background: var(--red);
  box-shadow: 0 0 0 9px rgba(220,38,38,0.12);
}

.scanner-video {
  width: 100%;
  max-width: 450px;
  background: #101820;
  border-radius: 10px;
}

/* Toast */

.toast {
  position: fixed;
  bottom: 22px;
  right: 22px;
  max-width: min(360px, calc(100vw - 32px));
  padding: 13px 17px;
  background: var(--navy);
  color: white;
  border-radius: 8px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: 0.2s ease;
  z-index: 100;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */

@media (max-width: 1000px) {
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sidebar {
    width: 205px;
    flex-basis: 205px;
  }

  .workspace {
    padding: 23px 20px;
  }
}

@media (max-width: 700px) {
  .topbar {
    padding: 0 13px;
    min-height: 60px;
  }

  .brand-name {
    font-size: 13px;
  }

  .brand-subtitle {
    font-size: 9px;
  }

  .status-pill {
    display: none;
  }

  #mainScreen {
    display: block;
    padding-bottom: 67px;
  }

  .sidebar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 64px;
    padding: 5px;
    display: flex;
    overflow-x: auto;
    border-right: 0;
    border-top: 1px solid var(--border);
    z-index: 30;
  }

  .sidebar-heading {
    display: none;
  }

  .nav-button {
    flex: 0 0 75px;
    width: 75px;
    padding: 6px 3px;
    margin: 0 2px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 3px;
    font-size: 9px;
    text-align: center;
  }

  .nav-button span {
    font-size: 17px;
  }

  .workspace {
    padding: 19px 13px;
  }

  .page-heading {
    align-items: flex-start;
  }

  .page-heading h1 {
    font-size: 21px;
  }

  .user-info {
    font-size: 11px;
  }

  .user-info .avatar {
    width: 32px;
    height: 32px;
  }

  .stats-grid {
    gap: 9px;
  }

  .stat-card {
    padding: 13px;
    min-height: 105px;
  }

  .stat-value {
    font-size: 23px;
  }

  .content-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-field.full-width {
    grid-column: auto;
  }

  .login-card {
    padding: 25px 21px;
  }

  .card,
  .panel {
    padding: 15px;
  }
}

@media (max-width: 380px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .logout-button,
  .install-button {
    padding: 7px 9px;
    font-size: 11px;
  }
}