:root {
  --color-bg: #06101d;
  --color-surface: #0c1929;
  --color-surface-raised: #102238;
  --color-border: #22364b;
  --color-border-strong: #36516c;
  --color-text: #f3f7fb;
  --color-text-muted: #9bb0c4;
  --color-accent: #69e6b2;
  --color-accent-strong: #35c98b;
  --color-accent-soft: rgba(105, 230, 178, 0.12);
  --color-danger: #ff8f91;
  --color-warning: #f3c969;
  --shadow-card: 0 18px 48px rgba(0, 0, 0, 0.22);
  --radius-lg: 20px;
  --radius-md: 12px;
  --content-width: 1240px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--color-bg);
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 82% -10%, rgba(40, 155, 123, 0.16), transparent 32rem),
    var(--color-bg);
  color: var(--color-text);
  font-size: 16px;
  line-height: 1.5;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--color-text);
  color: var(--color-bg);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid rgba(105, 230, 178, 0.45);
  border-radius: 12px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.topbar {
  border-bottom: 1px solid rgba(54, 81, 108, 0.55);
  background: rgba(6, 16, 29, 0.9);
  backdrop-filter: blur(18px);
}

.topbar-inner {
  display: flex;
  width: min(calc(100% - 40px), var(--content-width));
  min-height: 76px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 0.95rem;
}

.brand small {
  color: var(--color-text-muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.account-area,
.heading-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.account-name {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.quiet-button,
.icon-button,
.range-switcher button {
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: transparent;
  color: var(--color-text-muted);
  transition: border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.quiet-button {
  padding: 0 14px;
}

.quiet-button:hover,
.icon-button:hover,
.range-switcher button:hover {
  border-color: var(--color-border-strong);
  background: var(--color-surface-raised);
  color: var(--color-text);
}

.icon-button {
  display: grid;
  width: 44px;
  padding: 0;
  place-items: center;
}

.icon-button svg {
  width: 20px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.dashboard {
  width: min(calc(100% - 40px), var(--content-width));
  margin: 0 auto;
  padding: 54px 0 42px;
}

.page-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 30px;
}

.page-heading h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.page-heading p:last-child {
  margin: 14px 0 0;
  color: var(--color-text-muted);
}

.status-badge {
  display: inline-flex;
  min-height: 36px;
  padding: 0 12px;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(105, 230, 178, 0.24);
  border-radius: 999px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 650;
  white-space: nowrap;
}

.status-badge span {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 4px rgba(105, 230, 178, 0.1);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.metric-card,
.content-card,
.login-panel {
  border: 1px solid var(--color-border);
  background: linear-gradient(145deg, rgba(16, 34, 56, 0.94), rgba(10, 25, 42, 0.94));
  box-shadow: var(--shadow-card);
}

.metric-card {
  min-height: 148px;
  padding: 22px;
  border-radius: var(--radius-md);
}

.metric-card p,
.metric-card span {
  color: var(--color-text-muted);
}

.metric-card p {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 650;
}

.metric-card strong {
  display: block;
  margin: 14px 0 4px;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.metric-card span {
  font-size: 0.75rem;
}

.metric-primary {
  border-color: rgba(105, 230, 178, 0.34);
  background: linear-gradient(145deg, rgba(21, 64, 64, 0.78), rgba(10, 31, 42, 0.96));
}

.metric-primary strong {
  color: var(--color-accent);
}

.content-card {
  padding: 26px;
  border-radius: var(--radius-lg);
}

.chart-card {
  margin-bottom: 14px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}

.card-header h2 {
  margin: 0;
  font-size: 1.18rem;
  letter-spacing: -0.02em;
}

.range-switcher {
  display: flex;
  padding: 3px;
  gap: 3px;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-bg);
}

.range-switcher button {
  min-height: 38px;
  padding: 0 12px;
  border-color: transparent;
  font-size: 0.78rem;
}

.range-switcher button[aria-pressed="true"] {
  background: var(--color-surface-raised);
  color: var(--color-accent);
}

.chart-wrap {
  position: relative;
  min-height: 320px;
}

#rate-chart {
  display: block;
  width: 100%;
  min-height: 300px;
  overflow: visible;
}

.chart-grid {
  stroke: rgba(155, 176, 196, 0.13);
  stroke-width: 1;
}

.chart-axis-label {
  fill: var(--color-text-muted);
  font-size: 12px;
}

.chart-area {
  fill: url(#rate-area-gradient);
}

.chart-line {
  fill: none;
  stroke: var(--color-accent);
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 3;
}

.chart-point {
  fill: var(--color-surface);
  stroke: var(--color-accent);
  stroke-width: 2;
}

.chart-tooltip {
  position: absolute;
  z-index: 5;
  min-width: 144px;
  padding: 10px 12px;
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  background: #071422;
  box-shadow: var(--shadow-card);
  pointer-events: none;
  font-size: 0.78rem;
}

.chart-tooltip strong,
.chart-tooltip span {
  display: block;
}

.chart-tooltip span {
  margin-top: 2px;
  color: var(--color-text-muted);
}

.load-status {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.table-wrap {
  width: 100%;
}

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

th,
td {
  padding: 15px 12px;
  border-bottom: 1px solid rgba(54, 81, 108, 0.55);
  text-align: left;
}

th {
  color: var(--color-text-muted);
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.04em;
}

td {
  font-size: 0.875rem;
}

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

.rate-value {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.change-positive {
  color: var(--color-accent);
}

.change-negative {
  color: var(--color-danger);
}

.delivery-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-text-muted);
  font-size: 0.78rem;
}

.delivery-status::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-warning);
  content: "";
}

.delivery-status.complete::before {
  background: var(--color-accent);
}

.empty-state {
  display: grid;
  min-height: 240px;
  place-items: center;
  color: var(--color-text-muted);
  text-align: center;
}

.footer {
  width: min(calc(100% - 40px), var(--content-width));
  margin: 0 auto;
  padding: 0 0 36px;
  color: var(--color-text-muted);
  font-size: 0.76rem;
}

.login-page {
  display: grid;
  place-items: center;
  padding: 32px;
}

.login-shell {
  display: grid;
  width: min(100%, 1020px);
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  align-items: center;
  gap: clamp(42px, 8vw, 100px);
}

.login-intro .brand-mark {
  margin-bottom: 42px;
}

.login-intro h1 {
  max-width: 620px;
  margin: 0;
  font-size: clamp(3rem, 7vw, 6.2rem);
  line-height: 0.98;
  letter-spacing: -0.065em;
}

.login-copy {
  max-width: 520px;
  margin: 28px 0 0;
  color: var(--color-text-muted);
  font-size: 1rem;
}

.login-panel {
  padding: clamp(28px, 5vw, 42px);
  border-radius: var(--radius-lg);
}

.panel-heading h2 {
  margin: 0;
  font-size: 1.55rem;
}

.panel-heading > p:last-child {
  margin: 8px 0 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

.login-form {
  display: grid;
  margin-top: 30px;
}

.login-form label {
  margin: 0 0 8px;
  font-size: 0.82rem;
  font-weight: 650;
}

.login-form input {
  width: 100%;
  min-height: 48px;
  margin: 0 0 20px;
  padding: 0 14px;
  border: 1px solid var(--color-border-strong);
  border-radius: 10px;
  background: rgba(4, 13, 23, 0.64);
  color: var(--color-text);
}

.login-form input:hover {
  border-color: #53718d;
}

.primary-button {
  min-height: 50px;
  margin-top: 4px;
  border: 0;
  border-radius: 10px;
  background: var(--color-accent);
  color: #042417;
  font-weight: 750;
  transition: background 180ms ease, transform 180ms ease;
}

.primary-button:hover {
  background: #8df0c6;
  transform: translateY(-1px);
}

.alert {
  margin: 22px 0 -8px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 143, 145, 0.35);
  border-radius: 10px;
  background: rgba(255, 143, 145, 0.08);
  color: #ffc0c1;
  font-size: 0.84rem;
}

.security-note {
  margin: 22px 0 0;
  color: var(--color-text-muted);
  font-size: 0.74rem;
}

@media (max-width: 900px) {
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .login-shell {
    max-width: 560px;
    grid-template-columns: 1fr;
  }

  .login-intro h1 {
    font-size: clamp(2.7rem, 12vw, 4.8rem);
  }

  .login-intro .brand-mark {
    margin-bottom: 28px;
  }
}

@media (max-width: 640px) {
  .topbar-inner,
  .dashboard,
  .footer {
    width: min(calc(100% - 28px), var(--content-width));
  }

  .topbar-inner {
    min-height: 68px;
  }

  .account-name,
  .brand small {
    display: none;
  }

  .dashboard {
    padding-top: 38px;
  }

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

  .heading-actions {
    width: 100%;
    justify-content: space-between;
  }

  .metric-grid {
    grid-template-columns: 1fr;
  }

  .metric-card {
    min-height: 126px;
  }

  .content-card {
    padding: 20px 16px;
  }

  .card-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .range-switcher {
    width: 100%;
  }

  .range-switcher button {
    flex: 1;
  }

  .chart-wrap {
    min-height: 250px;
  }

  #rate-chart {
    min-height: 230px;
  }

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

  thead {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
  }

  tbody {
    display: grid;
    gap: 10px;
  }

  tbody tr {
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: rgba(6, 16, 29, 0.32);
  }

  td {
    display: grid;
    min-height: 40px;
    padding: 8px 0;
    grid-template-columns: 42% 58%;
    align-items: center;
    border-bottom: 1px solid rgba(54, 81, 108, 0.38);
    text-align: right;
  }

  td::before {
    color: var(--color-text-muted);
    content: attr(data-label);
    font-size: 0.72rem;
    font-weight: 650;
    text-align: left;
  }

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

  .delivery-status {
    justify-self: end;
  }

  .login-page {
    align-items: start;
    padding: 24px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}