:root {
  --bg: #ffffff;
  --canvas: #f6f8fa;
  --surface: #ffffff;
  --surface-subtle: #f6f8fa;
  --text: #24292f;
  --muted: #57606a;
  --border: #d0d7de;
  --border-muted: #d8dee4;
  --accent: #0969da;
  --accent-hover: #0757b3;
  --success: #1a7f37;
  --danger: #cf222e;
  --shadow: 0 1px 0 rgba(27, 31, 36, 0.04);
  --radius: 12px;
  --sidebar-width: 276px;
}

body.dark-theme {
  --bg: #0d1117;
  --canvas: #010409;
  --surface: #161b22;
  --surface-subtle: #0d1117;
  --text: #e6edf3;
  --muted: #8b949e;
  --border: #30363d;
  --border-muted: #21262d;
  --accent: #58a6ff;
  --accent-hover: #79c0ff;
  --success: #3fb950;
  --danger: #f85149;
  --shadow: none;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--canvas);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

a {
  color: var(--accent);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 20px 16px;
  background: var(--bg);
  border-right: 1px solid var(--border);
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  color: #ffffff;
  background: #24292f;
  font-size: 15px;
  font-weight: 800;
}

body.dark-theme .brand-mark {
  color: #0d1117;
  background: #f0f6fc;
}

.brand small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

.nav-section-label {
  margin: 18px 8px 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.side-nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 36px;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
}

.side-nav-link:hover {
  color: var(--text);
  background: var(--surface-subtle);
}

.side-nav-link.active {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.side-nav-link .material-icons {
  font-size: 18px;
  color: var(--muted);
}

.side-nav-link.active .material-icons {
  color: var(--accent);
}

.nav-counter {
  margin-left: auto;
  min-width: 22px;
  height: 22px;
  line-height: 22px;
  padding: 0 6px;
  border-radius: 999px;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
}

.main-area {
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 0 28px;
  background: color-mix(in srgb, var(--canvas) 86%, transparent);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.topbar-title {
  margin: 0;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-button,
.mobile-menu-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  background: var(--surface);
  cursor: pointer;
}

.mobile-menu-button {
  display: none;
}

.kb-container {
  width: min(1240px, calc(100% - 48px));
  margin: 24px auto 56px;
}

.page-title,
h4 {
  margin: 0 0 18px;
  color: var(--text);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-subtitle {
  margin-top: -10px;
  margin-bottom: 22px;
  color: var(--muted);
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}

.card .card-content {
  padding: 20px;
}

.card .card-title {
  display: block;
  margin-bottom: 12px;
  color: var(--text);
  font-size: 16px;
  font-weight: 700;
}

.chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.active-chip {
  border: 1px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.table-primary-link {
  color: var(--text);
  font-weight: 600;
}

.clickable-row {
  cursor: pointer;
}

.clickable-row:hover {
  background: color-mix(in srgb, var(--accent) 6%, var(--surface));
}

.attempt-cell {
  min-width: 220px;
}

.page-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.page-actions-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.detail-list {
  display: grid;
  gap: 8px;
}

.detail-panel {
  padding-top: 12px;
  margin-top: 14px;
  border-top: 1px solid var(--border-muted);
}

.profile-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.summary-item {
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-subtle);
}

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

.compact-stat .card-content {
  padding: 16px;
}

.compact-stat .card-title {
  margin-bottom: 4px;
  font-size: 24px;
}

.stat-chip {
  height: auto;
  min-height: 32px;
  line-height: 1.35;
  padding-top: 6px;
  padding-bottom: 6px;
}

.test-status-grid {
  gap: 10px;
}

.chat-thread {
  display: grid;
  gap: 12px;
  max-height: 560px;
  overflow-y: auto;
  padding-right: 4px;
}

.chat-message {
  display: grid;
  gap: 6px;
}

.chat-message.outbound {
  justify-items: end;
}

.chat-meta {
  display: flex;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
}

.chat-bubble {
  max-width: min(560px, 100%);
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-subtle);
  white-space: pre-wrap;
}

.chat-message.outbound .chat-bubble {
  background: color-mix(in srgb, var(--accent) 10%, var(--surface));
}

.compact-chat {
  max-height: 320px;
}

@media (max-width: 700px) {
  .profile-summary-grid {
    grid-template-columns: 1fr;
  }
}

.stat-card {
  overflow: hidden;
}

.stat-card::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--success));
}

.stat-card .card-title {
  margin: 0;
  font-size: 30px;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.stat-card p {
  margin: 8px 0 0;
  color: var(--muted);
}

.muted {
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
}

.compact-form {
  margin-bottom: 0;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 20px !important;
}

.funnel-list {
  display: grid;
  gap: 14px;
}

.funnel-row {
  display: grid;
  grid-template-columns: minmax(180px, 280px) 1fr 54px;
  align-items: center;
  gap: 14px;
}

.funnel-label strong {
  display: block;
  color: var(--text);
  font-weight: 700;
}

.funnel-label span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.funnel-bar {
  height: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-subtle);
}

.funnel-bar span {
  display: block;
  height: 100%;
  min-width: 3px;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--success));
}

.funnel-percent {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-align: right;
}

.date-cell {
  min-width: 240px;
  font-size: 12px;
}

table {
  margin: 0;
  border-collapse: collapse;
  color: var(--text);
}

table th {
  background: var(--surface-subtle);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

table th,
table td {
  border-bottom: 1px solid var(--border-muted);
  padding: 11px 13px;
  vertical-align: top;
}

table.striped > tbody > tr:nth-child(odd),
.collection,
.collection .collection-item,
.modal,
.dropdown-content {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border);
}

table.highlight > tbody > tr:hover {
  background: var(--surface-subtle);
}

.btn,
.btn-large,
.btn-small {
  height: 36px;
  line-height: 36px;
  padding: 0 14px;
  border-radius: 8px;
  background: var(--accent);
  box-shadow: none;
  color: #ffffff;
  font-weight: 600;
  text-transform: none;
}

.btn:hover,
.btn-large:hover,
.btn-small:hover {
  background: var(--accent-hover);
  box-shadow: none;
}

.btn-flat {
  height: 34px;
  line-height: 34px;
  padding: 0 10px;
  border-radius: 8px;
  color: var(--accent);
  font-weight: 600;
  text-transform: none;
}

.btn-flat:hover {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.chip,
.new.badge {
  border-radius: 999px;
  background: var(--surface-subtle);
  color: var(--text);
  border: 1px solid var(--border);
  font-weight: 600;
}

.new.badge.green {
  background: color-mix(in srgb, var(--success) 16%, transparent) !important;
  color: var(--success);
}

.new.badge.grey {
  background: var(--surface-subtle) !important;
  color: var(--muted);
}

label,
input,
textarea,
select,
.select-wrapper input.select-dropdown {
  color: var(--text) !important;
}

input:not([type]),
input[type=text]:not(.browser-default),
input[type=password]:not(.browser-default),
input[type=number]:not(.browser-default),
textarea.materialize-textarea,
.select-wrapper input.select-dropdown {
  border-bottom: 1px solid var(--border) !important;
}

input:not([type]):focus:not([readonly]),
input[type=text]:not(.browser-default):focus:not([readonly]),
input[type=password]:not(.browser-default):focus:not([readonly]),
input[type=number]:not(.browser-default):focus:not([readonly]),
textarea.materialize-textarea:focus:not([readonly]) {
  border-bottom: 1px solid var(--accent) !important;
  box-shadow: 0 1px 0 0 var(--accent) !important;
}

.input-field textarea.materialize-textarea {
  min-height: 160px;
}

.inline-form {
  display: inline-block;
}

.flash-message {
  margin: 0 0 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  background: var(--surface);
}

.flash-message.is-error {
  border-color: color-mix(in srgb, var(--danger) 35%, var(--border));
}

.flash-message.is-success {
  border-color: color-mix(in srgb, var(--success) 35%, var(--border));
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: #f3f4f6;
}

.login-shell {
  width: min(440px, 100%);
}

.login-title {
  margin: 0 0 24px;
  font-size: 36px;
  line-height: 1.1;
  font-weight: 700;
  color: #101828;
}

.login-form {
  display: grid;
  gap: 14px;
}

.login-label {
  display: block;
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: #111827 !important;
}

.login-input.browser-default {
  width: 100%;
  height: 46px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  padding: 0 14px;
  font-size: 16px;
  line-height: 46px;
  color: #0f172a;
  background: #ffffff;
  box-sizing: border-box;
}

.login-input.browser-default:focus {
  outline: none;
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

.login-button.btn {
  margin-top: 8px;
  align-self: start;
  border-radius: 10px;
  text-transform: none;
  font-weight: 600;
}

.login-error {
  margin: 0 0 16px;
  padding: 10px 12px;
  border: 1px solid #fecaca;
  background: #fef2f2;
  color: #991b1b;
  border-radius: 10px;
}

.mobile-overlay {
  display: none;
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    z-index: 50;
    inset: 0 auto 0 0;
    width: min(82vw, var(--sidebar-width));
    transform: translateX(-100%);
    transition: transform 180ms ease;
  }

  body.sidebar-open .sidebar {
    transform: translateX(0);
  }

  .mobile-overlay {
    position: fixed;
    z-index: 40;
    inset: 0;
    background: rgba(1, 4, 9, 0.45);
  }

  body.sidebar-open .mobile-overlay {
    display: block;
  }

  .mobile-menu-button {
    display: inline-flex;
  }

  .topbar {
    padding: 0 16px;
  }

  .kb-container {
    width: min(100% - 24px, 1240px);
  }

  .funnel-row {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .funnel-percent {
    text-align: left;
  }
}