* {
  box-sizing: border-box;
}

:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --panel-2: #eef2f7;
  --border: rgba(0, 0, 0, 0.09);
  --border-strong: rgba(0, 0, 0, 0.16);
  --text: #1a1f36;
  --muted: #6b7280;
  --accent: #0056b3;
  --accent-2: #007bff;
  --accent-soft: #e6f0fb;
  --danger: #c62828;
  --danger-soft: #fdecec;
  --warn: #9a6100;
  --warn-soft: #fff4dd;
  --ok: #1b7f3b;
  --ok-soft: #e5f5ea;
  --add: #dff3e4;
  --del: #fbe2e2;
  --shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --font: 'DM Sans', system-ui, -apple-system, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

html,
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
}

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

h1, h2, h3 {
  line-height: 1.25;
  margin: 0;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.1rem; }
h3 { font-size: 0.95rem; }

[hidden] {
  display: none !important;
}

code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: var(--panel-2);
  padding: 1px 5px;
  border-radius: 5px;
}

/* ── Top bar ─────────────────────────────── */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 10px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  flex-shrink: 0;
}

.brand img {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  object-fit: contain;
  background: #fff;
}

.brand span {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand small {
  color: var(--muted);
  font-size: 0.75rem;
}

.nav {
  display: flex;
  gap: 4px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav a,
.user-link {
  padding: 7px 12px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  white-space: nowrap;
}

.nav a:hover,
.user-link:hover {
  background: var(--panel-2);
  color: var(--text);
}

.nav a.active,
.user-link.active {
  background: var(--accent-soft);
  color: var(--accent);
}

.user {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

/* ── Layout ─────────────────────────────── */

.main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 24px 64px;
  outline: none;
}

.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.page-head p {
  margin: 4px 0 0;
  color: var(--muted);
}

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

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.card + .card {
  margin-top: 16px;
}

.split > .card + .card {
  margin-top: 0;
}

.card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

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

.small {
  font-size: 0.85rem;
}

.empty {
  padding: 40px 16px;
  text-align: center;
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 20px;
  align-items: start;
}

/* ── Forms ─────────────────────────────── */

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.field label {
  font-weight: 600;
  font-size: 0.9rem;
}

.hint {
  color: var(--muted);
  font-size: 0.82rem;
  margin: 0;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
select,
textarea {
  width: 100%;
  font: inherit;
  color: inherit;
  background: var(--panel);
  border: 1px solid var(--border-strong);
  border-radius: 9px;
  padding: 9px 12px;
}

textarea {
  resize: vertical;
  min-height: 220px;
  line-height: 1.55;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--accent-2);
  outline-offset: -1px;
  border-color: transparent;
}

input:disabled,
select:disabled,
textarea:disabled {
  background: var(--panel-2);
  color: var(--muted);
}

.counter {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--muted);
}

.counter.warn {
  color: var(--warn);
}

.counter.over {
  color: var(--danger);
}

.check {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--muted);
  white-space: nowrap;
}

.form-error {
  margin: 0 0 14px;
  padding: 10px 12px;
  border-radius: 9px;
  background: var(--danger-soft);
  color: var(--danger);
  font-size: 0.9rem;
}

/* ── Buttons ─────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font: inherit;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 9px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  background: var(--accent);
  color: #fff;
}

.btn:hover {
  background: #004a99;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-secondary {
  background: var(--panel);
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--panel-2);
}

.btn-ghost {
  background: transparent;
  color: var(--muted);
}

.btn-ghost:hover {
  background: var(--panel-2);
  color: var(--text);
}

.btn-danger {
  background: var(--danger);
}

.btn-danger:hover {
  background: #a51f1f;
}

.btn-danger-quiet {
  background: transparent;
  color: var(--danger);
  border-color: transparent;
}

.btn-danger-quiet:hover {
  background: var(--danger-soft);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 0.85rem;
  border-radius: 7px;
}

/* ── Toolbar / tabs ─────────────────────────────── */

.toolbar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 14px;
}

.toolbar input[type="search"] {
  flex: 1 1 260px;
}

.toolbar select {
  width: auto;
  flex: 0 1 240px;
}

.toolbar input[type="text"],
.toolbar input[type="email"] {
  width: auto;
  flex: 1 1 220px;
}

.tabs {
  display: inline-flex;
  background: var(--panel-2);
  border-radius: 9px;
  padding: 3px;
}

.tabs button {
  font: inherit;
  font-weight: 600;
  font-size: 0.88rem;
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 7px;
  cursor: pointer;
}

.tabs button.active {
  background: var(--panel);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08);
}

/* ── Tables ─────────────────────────────── */

.table-wrap {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

th {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  background: var(--panel-2);
  font-weight: 600;
}

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

tbody tr.clickable {
  cursor: pointer;
}

tbody tr.clickable:hover td {
  background: #f8fafd;
}

.cell-title {
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}

.cell-title:hover {
  color: var(--accent);
}

.preview {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 2px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.nowrap {
  white-space: nowrap;
}

.row-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* ── Badges ─────────────────────────────── */

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--muted);
  white-space: nowrap;
}

.badge-accent { background: var(--accent-soft); color: var(--accent); }
.badge-ok { background: var(--ok-soft); color: var(--ok); }
.badge-warn { background: var(--warn-soft); color: var(--warn); }
.badge-danger { background: var(--danger-soft); color: var(--danger); }

.banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  background: var(--warn-soft);
  color: var(--warn);
  font-weight: 500;
  flex-wrap: wrap;
}

/* ── History / diff ─────────────────────────────── */

.history {
  list-style: none;
  margin: 0;
  padding: 0;
}

.history li {
  padding: 12px 0;
  border-top: 1px solid var(--border);
}

.history li:first-child {
  border-top: 0;
  padding-top: 0;
}

.history-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--muted);
}

.history-summary {
  margin: 3px 0 6px;
  font-size: 0.9rem;
}

.diff {
  margin-top: 10px;
  display: grid;
  gap: 10px;
}

.diff-field h4 {
  margin: 0 0 4px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.diff-text {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.88rem;
  background: var(--panel-2);
  border-radius: 8px;
  padding: 8px 10px;
  margin: 0;
}

.diff-text ins {
  background: var(--add);
  text-decoration: none;
  border-radius: 3px;
}

.diff-text del {
  background: var(--del);
  color: #8a1c1c;
  border-radius: 3px;
}

.log-details td {
  background: #fafbfd;
}

/* ── Test results ─────────────────────────────── */

.results {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.result {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
}

.result.selected {
  border-color: var(--accent-2);
  box-shadow: inset 3px 0 0 var(--accent-2);
}

.score {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 1.05rem;
}

.score-bar {
  height: 5px;
  border-radius: 3px;
  background: var(--panel-2);
  margin-top: 6px;
  overflow: hidden;
}

.score-bar span {
  display: block;
  height: 100%;
  background: var(--accent-2);
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.stat {
  background: var(--panel-2);
  border-radius: 10px;
  padding: 12px 14px;
}

.stat strong {
  display: block;
  font-size: 1.35rem;
  font-variant-numeric: tabular-nums;
}

.stat span {
  font-size: 0.82rem;
  color: var(--muted);
}

/* ── Login ─────────────────────────────── */

.auth-wrap {
  min-height: calc(100vh - 92px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 32px 28px;
}

.auth-card .logo {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  object-fit: contain;
  display: block;
  margin: 0 auto 14px;
}

.auth-card h1 {
  text-align: center;
  font-size: 1.35rem;
}

.auth-card > p {
  text-align: center;
  color: var(--muted);
  margin: 6px 0 22px;
}

.auth-card .btn {
  width: 100%;
  padding: 11px;
}

/* ── Pagination ─────────────────────────────── */

.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ── Toasts + dialog ─────────────────────────────── */

.toasts {
  position: fixed;
  right: 20px;
  bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 50;
  max-width: min(420px, calc(100vw - 32px));
}

.toast {
  background: var(--text);
  color: #fff;
  padding: 11px 16px;
  border-radius: 10px;
  box-shadow: var(--shadow);
  font-size: 0.92rem;
  animation: toast-in 0.18s ease-out;
}

.toast.error { background: var(--danger); }
.toast.warn { background: var(--warn); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.dialog {
  border: 0;
  border-radius: 16px;
  padding: 0;
  width: min(460px, calc(100vw - 32px));
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
  color: var(--text);
}

.dialog::backdrop {
  background: rgba(15, 23, 42, 0.45);
}

.dialog-body {
  padding: 24px;
  margin: 0;
}

.dialog-body h2 {
  margin-bottom: 8px;
}

.dialog-body > p {
  margin: 0 0 16px;
  color: var(--muted);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 20px;
}

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

.secret code {
  flex: 1;
  font-size: 1.05rem;
  padding: 10px 12px;
  text-align: center;
  letter-spacing: 0.04em;
  user-select: all;
}

/* ── Small screens ─────────────────────────────── */

@media (max-width: 960px) {
  .split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .topbar {
    flex-wrap: wrap;
    gap: 8px 12px;
    padding: 10px 16px;
  }

  .brand small {
    display: none;
  }

  .user {
    margin-left: auto;
  }

  .nav {
    order: 3;
    flex-basis: 100%;
  }

  .main {
    padding: 20px 16px 48px;
  }

  .toolbar select,
  .toolbar input {
    flex: 1 1 100%;
  }

  /* Tables become stacked cards */
  .table-wrap {
    background: transparent;
    border: 0;
  }

  table,
  tbody,
  tr,
  td {
    display: block;
    width: 100%;
  }

  thead {
    display: none;
  }

  tbody tr {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 10px;
    padding: 6px 0;
  }

  td {
    border: 0;
    padding: 6px 14px;
  }

  td[data-label]::before {
    content: attr(data-label);
    display: block;
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    font-weight: 600;
  }

  .row-actions {
    justify-content: flex-start;
  }

  .result {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}