:root {
  --bg: #0b0b0d;
  --panel: #16161a;
  --panel-2: #1d1d21;
  --border: #2a2a2f;
  --gold: #d9a441;
  --gold-strong: #e6b654;
  --text: #f2f2f3;
  --text-dim: #9a9aa1;
  --green: #3ecf8e;
  --red: #ef6470;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

a { color: inherit; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  background: #000;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.3px;
}

.brand .cr { color: var(--gold); }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--text-dim);
  font-size: 14px;
}

.btn-logout {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
}
.btn-logout:hover { color: var(--text); border-color: var(--gold); }

.page {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 28px 60px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  margin: 4px 0 2px;
}

.page-subtitle {
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 20px;
}

.tabs {
  display: flex;
  gap: 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
  width: fit-content;
  margin-bottom: 18px;
  background: var(--panel);
}

.tab {
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  color: var(--text-dim);
  border: none;
  background: transparent;
  display: flex;
  align-items: center;
  gap: 8px;
}

.tab.active {
  background: var(--panel-2);
  color: var(--text);
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 18px;
}

.card-title {
  font-size: 13px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}

.filters-row {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  align-items: flex-end;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 180px;
}

.field label {
  font-size: 13px;
  color: var(--text-dim);
}

select, .select {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 14px;
  min-width: 200px;
}

.city-input-wrap { position: relative; }

.city-input {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 14px;
  width: 100%;
  min-width: 200px;
}

.city-suggestions {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  max-height: 220px;
  overflow-y: auto;
  z-index: 20;
  display: none;
}

.city-suggestions.open { display: block; }

.city-suggestions div {
  padding: 8px 12px;
  font-size: 14px;
  cursor: pointer;
}
.city-suggestions div:hover { background: #26262b; }

.route-arrow { color: var(--text-dim); padding-bottom: 10px; font-size: 16px; }

.period-group {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.period-btn {
  padding: 9px 16px;
  font-size: 13px;
  color: var(--text-dim);
  background: var(--panel-2);
  border: none;
  border-right: 1px solid var(--border);
  cursor: pointer;
}
.period-btn:last-child { border-right: none; }
.period-btn.active { background: var(--gold); color: #1a1200; font-weight: 600; }

.content-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 18px;
  align-items: start;
}

@media (max-width: 900px) {
  .content-grid { grid-template-columns: 1fr; }
}

.summary-card .unit-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.unit-toggle button {
  background: var(--panel-2);
  color: var(--text-dim);
  border: none;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
}
.unit-toggle button.active { background: #2c2c31; color: var(--text); }

.summary-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 13px;
  color: var(--text-dim);
}
.summary-top .dot { color: var(--gold); margin-right: 6px; }

.summary-value {
  font-size: 44px;
  font-weight: 700;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.summary-value .unit { font-size: 16px; color: var(--text-dim); font-weight: 400; }

.summary-range {
  color: var(--text-dim);
  font-size: 13px;
  margin: 6px 0 14px;
}

.summary-note {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 16px;
}

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

.delta-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--panel-2);
  border-radius: 8px;
  padding: 10px 12px;
}

.delta-label { font-size: 13px; }
.delta-label .sub { display: block; color: var(--text-dim); font-size: 12px; }
.delta-value { text-align: right; font-size: 14px; font-weight: 600; }
.delta-value .pct { display: block; font-size: 12px; font-weight: 400; }
.delta-value.up { color: var(--green); }
.delta-value.down { color: var(--red); }

.chart-card { min-height: 420px; }
.chart-wrap { position: relative; height: 420px; }

.empty-state, .loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 380px;
  color: var(--text-dim);
  text-align: center;
  gap: 10px;
}
.empty-state .icon, .loading-state .icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--panel-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.empty-state.warn .icon { background: rgba(239,100,112,0.15); color: var(--red); }
.empty-state h3, .loading-state h3 { margin: 0; font-size: 15px; color: var(--text); }
.empty-state p, .loading-state p { margin: 0; font-size: 13px; max-width: 320px; }

.footer-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 12px;
}

.banner-warn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(217,164,65,0.12);
  border: 1px solid rgba(217,164,65,0.35);
  color: var(--gold-strong);
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 13px;
  margin-top: 12px;
}

.range-card { margin-top: 14px; }
.range-track {
  position: relative;
  height: 6px;
  background: var(--panel-2);
  border-radius: 4px;
  margin: 18px 6px 8px;
}
.range-fill {
  position: absolute;
  top: 0; bottom: 0;
  background: rgba(217,164,65,0.5);
  border-radius: 4px;
}
.range-dot {
  position: absolute;
  top: 50%;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--gold);
  transform: translate(-50%, -50%);
}
.range-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-dim);
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 50% 0%, #1a1610 0%, #0b0b0d 60%);
}

.login-card {
  width: 380px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 30px 28px;
}

.login-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}
.login-logo .cr { color: var(--gold); }

.login-sub {
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 24px;
}

.login-field { margin-bottom: 14px; }
.login-field label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.login-field input {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
}
.login-field input:focus { outline: 1px solid var(--gold); }

.advanced-toggle {
  font-size: 12px;
  color: var(--text-dim);
  cursor: pointer;
  margin-bottom: 14px;
  display: inline-block;
}
.advanced-toggle:hover { color: var(--gold); }

.login-btn {
  width: 100%;
  background: var(--gold);
  color: #1a1200;
  border: none;
  padding: 11px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  margin-top: 6px;
}
.login-btn:disabled { opacity: 0.6; cursor: default; }

.login-error {
  background: rgba(239,100,112,0.12);
  border: 1px solid rgba(239,100,112,0.35);
  color: var(--red);
  font-size: 13px;
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 14px;
  display: none;
}

.login-security-note {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 18px;
  line-height: 1.5;
  text-align: center;
}