:root {
  --bg: #e9f1f7;
  --ink: #0f2533;
  --muted: #4c6776;
  --brand: #0f8b8d;
  --brand-2: #3ea5a6;
  --accent: #f7b267;
  --card: rgba(255, 255, 255, 0.78);
  --line: #c7d8e2;
  --good: #1a9f52;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background: linear-gradient(155deg, #d9e9f4 0%, #edf4f8 40%, #f7f5ef 100%);
}

.bg-orb {
  position: fixed;
  border-radius: 999px;
  filter: blur(60px);
  opacity: 0.4;
  pointer-events: none;
}

.orb-a {
  width: 420px;
  height: 420px;
  background: #59c3c3;
  top: -140px;
  left: -120px;
}

.orb-b {
  width: 380px;
  height: 380px;
  background: #ffd7a8;
  right: -120px;
  top: 180px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  backdrop-filter: blur(12px);
  background: rgba(240, 248, 252, 0.75);
  border-bottom: 1px solid rgba(165, 189, 203, 0.5);
}

.topbar h1 {
  margin: 0;
  font-size: clamp(20px, 3vw, 30px);
  line-height: 1.1;
}

.topbar p {
  margin: 2px 0 0;
  color: var(--muted);
}

.topbar-actions {
  display: flex;
  gap: 10px;
}

.layout {
  max-width: 1300px;
  margin: 0 auto;
  padding: 18px;
  display: grid;
  gap: 14px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.stat-card,
.panel {
  background: var(--card);
  border: 1px solid rgba(173, 194, 207, 0.7);
  border-radius: 16px;
  box-shadow: 0 8px 20px rgba(40, 70, 88, 0.08);
}

.stat-card {
  padding: 12px 14px;
}

.stat-card span {
  display: block;
  font-size: 13px;
  color: var(--muted);
}

.stat-card strong {
  font-size: 26px;
  letter-spacing: -0.02em;
}

.panel {
  padding: 12px;
}

.panel-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.tabs {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}

.tab {
  border: 0;
  padding: 8px 14px;
  background: #f4fafc;
  font-family: inherit;
  font-weight: 600;
  color: #355564;
  cursor: pointer;
}

.tab.active {
  background: #dff2f3;
  color: #104c4d;
}

.search {
  width: min(340px, 100%);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 9px 11px;
  font-family: inherit;
}

.table-wrap {
  overflow: auto;
  border-radius: 12px;
  border: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
  background: rgba(255, 255, 255, 0.95);
}

th, td {
  padding: 10px 8px;
  border-bottom: 1px solid #e2edf3;
  text-align: left;
  white-space: nowrap;
}

th {
  font-size: 12px;
  text-transform: uppercase;
  color: #3f6071;
  letter-spacing: 0.04em;
  background: #f0f8fb;
}

.btn {
  border: 1px solid #74b8b9;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: white;
  padding: 8px 12px;
  border-radius: 10px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}

.btn:hover {
  filter: brightness(1.03);
}

.btn.ghost {
  border-color: #9db8c6;
  background: #f6fbff;
  color: #375969;
}

.btn.close {
  border-color: #90c8a3;
  background: #edf9f1;
  color: #0c6431;
}

.login-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 20, 26, 0.55);
  backdrop-filter: blur(3px);
  z-index: 30;
  display: none;
  pointer-events: none;
  place-items: center;
  padding: 16px;
}

.login-overlay.active {
  display: grid;
  pointer-events: auto;
}

.hidden { display: none !important; }

.login-card {
  width: min(430px, 100%);
  background: #f8fcff;
  border: 1px solid #b6ccd8;
  border-radius: 14px;
  box-shadow: 0 16px 36px rgba(11, 34, 49, 0.22);
  padding: 18px;
  display: grid;
  gap: 10px;
}

.login-card h2 {
  margin: 0;
}

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

.login-card label {
  display: grid;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

.login-card input {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
  font-family: inherit;
}

#loginError {
  color: #b10022;
  min-height: 1.2em;
}

.history-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: end;
  margin-bottom: 10px;
}

.history-tools label {
  display: grid;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}

.history-tools input {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
  font-family: inherit;
}

.history-tools select {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
  font-family: inherit;
  min-width: 220px;
  background: rgba(255, 255, 255, 0.92);
}

#settingsDialog {
  border: 1px solid var(--line);
  border-radius: 14px;
  width: min(520px, calc(100vw - 24px));
  padding: 0;
}

#settingsForm {
  display: grid;
  gap: 10px;
  padding: 14px;
}

#settingsForm h3 {
  margin: 0 0 4px;
}

#settingsForm label {
  display: grid;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}

#settingsForm input {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px;
  font-family: inherit;
}

#settingsForm menu {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: 8px 0 0;
  padding: 0;
}

@media (max-width: 980px) {
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .panel-top {
    flex-direction: column;
    align-items: stretch;
  }

  .search {
    width: 100%;
  }
}