:root {
  --bg: #09111b;
  --bg-elev: rgba(10, 18, 30, 0.88);
  --bg-elev-strong: rgba(15, 26, 42, 0.96);
  --bg-overlay: rgba(26, 38, 57, 0.78);
  --border: rgba(132, 164, 196, 0.16);
  --border-strong: rgba(132, 164, 196, 0.24);
  --text: #ecf2f8;
  --text-muted: #90a4ba;
  --accent: #6eb6ff;
  --accent-hot: #f0b45a;
  --danger: #ff7f7f;
  --success: #73d7ac;
  --shadow: 0 24px 80px rgba(3, 8, 15, 0.4);
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter,
    "Segoe UI",
    "Helvetica Neue",
    sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(64, 110, 173, 0.26), transparent 32%),
    radial-gradient(circle at top right, rgba(240, 180, 90, 0.12), transparent 28%),
    linear-gradient(180deg, #07101a 0%, #09131e 35%, #070d16 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to right, rgba(143, 178, 209, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(143, 178, 209, 0.03) 1px, transparent 1px);
  background-size:
    96px 100%,
    100% 96px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 82%);
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1,
h2,
h3 {
  font-family:
    Fraunces,
    "Iowan Old Style",
    Georgia,
    serif;
  letter-spacing: -0.02em;
}

button,
input {
  font: inherit;
}

button {
  border: 1px solid rgba(110, 182, 255, 0.4);
  background: linear-gradient(
    180deg,
    rgba(80, 150, 220, 0.2),
    rgba(49, 100, 167, 0.12)
  );
  color: var(--text);
  border-radius: 999px;
  padding: 0.72rem 1.15rem;
  cursor: pointer;
  transition:
    border-color 160ms ease,
    transform 160ms ease,
    background 160ms ease;
}

button:hover:not(:disabled),
button:focus-visible {
  border-color: rgba(240, 180, 90, 0.72);
  transform: translateY(-1px);
  outline: none;
}

button:disabled {
  cursor: wait;
  opacity: 0.7;
}

button.ghost {
  background: transparent;
}

input {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--border-strong);
  background: rgba(8, 14, 24, 0.9);
  color: var(--text);
  padding: 0.85rem 0.9rem;
}

input:focus-visible {
  border-color: rgba(110, 182, 255, 0.72);
  outline: none;
}

label {
  display: grid;
  gap: 0.38rem;
  color: var(--text-muted);
}

.hidden {
  display: none !important;
}

.eyebrow {
  color: var(--accent-hot);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

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

.panel {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(15, 24, 38, 0.94), rgba(9, 17, 28, 0.9));
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.login-view {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.login-panel {
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 440px);
  gap: 1.5rem;
  align-items: stretch;
}

.login-copy {
  padding: clamp(2rem, 5vw, 4rem);
  border-radius: 30px;
  background:
    radial-gradient(circle at top left, rgba(110, 182, 255, 0.18), transparent 30%),
    linear-gradient(180deg, rgba(12, 22, 35, 0.82), rgba(8, 14, 23, 0.75));
  border: 1px solid var(--border);
}

.login-copy h1 {
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  line-height: 0.95;
  margin-top: 0.5rem;
}

.login-lede {
  max-width: 38rem;
  margin-top: 1rem;
  font-size: clamp(1rem, 1.3vw, 1.15rem);
  line-height: 1.65;
  color: var(--text-muted);
}

.login-notes {
  display: grid;
  gap: 0.8rem;
  margin-top: 2rem;
}

.login-notes p {
  border: 1px solid rgba(132, 164, 196, 0.14);
  border-radius: 999px;
  padding: 0.72rem 0.95rem;
  background: rgba(13, 21, 34, 0.68);
  color: var(--text);
}

.login-card {
  padding: 1.6rem;
  display: grid;
  gap: 0.9rem;
  align-content: start;
}

.login-card h2 {
  font-size: 1.75rem;
}

.form,
.range-form {
  display: grid;
  gap: 0.85rem;
}

.app-view {
  min-height: 100vh;
}

.app-header {
  width: min(1400px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.4rem 0 1rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.app-heading h1 {
  margin-top: 0.3rem;
  font-size: clamp(2.2rem, 4.6vw, 3.5rem);
}

.app-subtitle {
  margin-top: 0.6rem;
  max-width: 44rem;
  line-height: 1.6;
}

.app-actions {
  display: grid;
  gap: 0.7rem;
  justify-items: end;
}

.action-row {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.dashboard-shell {
  width: min(1400px, calc(100% - 2rem));
  margin: 0 auto 2rem;
  display: grid;
  gap: 1.25rem;
}

.hero-panel {
  padding: 1.3rem;
  display: grid;
  gap: 1.2rem;
}

.hero-header,
.section-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.hero-copy {
  margin-top: 0.55rem;
  max-width: 48rem;
  line-height: 1.6;
}

.glossary-card {
  min-width: min(100%, 300px);
  border: 1px solid var(--border);
  border-radius: 22px;
  background: rgba(12, 20, 32, 0.78);
  padding: 1rem 1rem 1.05rem;
  display: grid;
  gap: 0.55rem;
}

.glossary-card p {
  line-height: 1.55;
}

.hero-stats,
.chart-grid,
.ranking-grid {
  display: grid;
  gap: 0.9rem;
}

.hero-stats {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-card,
.chart-card,
.insight-card {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: rgba(12, 20, 32, 0.82);
  padding: 1rem;
}

.stat-card p,
.chart-card p,
.insight-card p {
  color: var(--text-muted);
}

.stat-card strong,
.chart-card strong {
  display: block;
  margin-top: 0.45rem;
  color: var(--text);
  font-size: clamp(1.25rem, 2vw, 1.9rem);
}

.geo-panel {
  display: grid;
  gap: 0.85rem;
}

.geo-layout {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: minmax(0, 1.85fr) minmax(280px, 0.8fr);
  align-items: start;
}

.geo-map-shell {
  border: 1px solid var(--border);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(8, 17, 28, 0.92), rgba(10, 18, 30, 0.96));
  overflow: hidden;
  position: relative;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
}

.geo-map {
  position: relative;
  width: 100%;
  height: clamp(320px, 34vw, 480px);
  background:
    radial-gradient(circle at 50% 36%, rgba(110, 182, 255, 0.14), transparent 44%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(0, 0, 0, 0.18));
}

.geo-map::before,
.geo-map::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.geo-map::before {
  background:
    linear-gradient(to right, rgba(132, 176, 217, 0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(132, 176, 217, 0.08) 1px, transparent 1px);
  background-size:
    12.5% 100%,
    100% 25%;
  opacity: 0.6;
}

.geo-map::after {
  background:
    radial-gradient(circle at 50% 50%, transparent 56%, rgba(6, 10, 18, 0.2) 100%),
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.04),
      transparent 24%,
      rgba(5, 10, 18, 0.26) 100%
    );
}

.geo-world {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  opacity: 0.98;
  filter: drop-shadow(0 18px 36px rgba(3, 8, 14, 0.38)) saturate(1.04);
  transform: scale(1.01);
}

.geo-map-note {
  padding: 0.8rem 1rem 0.95rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(5, 10, 18, 0.42);
  font-size: 0.82rem;
  line-height: 1.5;
}

.geo-sidebar {
  display: grid;
  gap: 0.75rem;
}

.geo-summary {
  line-height: 1.55;
}

.geo-countries {
  min-height: 0;
  max-height: clamp(320px, 34vw, 480px);
  overflow: auto;
}

.geo-point {
  --point: rgba(110, 182, 255, 0.95);
  position: absolute;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  background: var(--point);
  transform: translate(-50%, -50%);
  padding: 0;
  box-shadow:
    0 0 0 2px rgba(110, 182, 255, 0.22),
    0 0 18px rgba(110, 182, 255, 0.45);
  z-index: 1;
}

.geo-point[data-source="edge"] {
  --point: rgba(240, 180, 90, 0.94);
  box-shadow:
    0 0 0 2px rgba(240, 180, 90, 0.22),
    0 0 18px rgba(240, 180, 90, 0.35);
}

.geo-point:hover,
.geo-point:focus-visible {
  transform: translate(-50%, -50%) scale(1.08);
  outline: none;
}

.geo-empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1rem;
  background: linear-gradient(
    180deg,
    rgba(8, 17, 28, 0.78),
    rgba(8, 17, 28, 0.68)
  );
  z-index: 2;
}

.dashboard-window {
  padding: 1.2rem;
  display: grid;
  gap: 1rem;
}

.window-copy {
  margin-top: 0.45rem;
  max-width: 44rem;
  line-height: 1.55;
}

.window-health {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  color: var(--text-muted);
}

.window-health span {
  border: 1px solid rgba(132, 164, 196, 0.16);
  border-radius: 999px;
  padding: 0.4rem 0.7rem;
  background: rgba(9, 15, 25, 0.72);
}

.chart-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.chart-card {
  display: grid;
  gap: 0.75rem;
}

.chart-copy {
  display: flex;
  justify-content: space-between;
  gap: 0.85rem;
  align-items: flex-start;
}

.chart-meta {
  display: grid;
  gap: 0.3rem;
}

.chart-meta small {
  color: var(--text-muted);
  line-height: 1.45;
}

.chart-surface {
  border-radius: 18px;
  padding: 0.75rem 0.75rem 0.55rem;
  background: rgba(7, 14, 23, 0.88);
  border: 1px solid rgba(132, 164, 196, 0.12);
}

.chart-surface[data-tone="requests"] {
  --chart-color: #6eb6ff;
}

.chart-surface[data-tone="latency"] {
  --chart-color: #9fdcb5;
}

.chart-surface[data-tone="errors"] {
  --chart-color: #ff8c8c;
}

.chart-surface[data-tone="resume"] {
  --chart-color: #f0b45a;
}

.chart-svg {
  width: 100%;
  height: 128px;
  display: block;
}

.chart-gridline {
  stroke: rgba(132, 176, 217, 0.12);
  stroke-width: 1;
}

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

.chart-area {
  fill: color-mix(in srgb, var(--chart-color) 18%, transparent);
}

.chart-dot {
  fill: var(--chart-color);
  stroke: rgba(255, 255, 255, 0.82);
  stroke-width: 1.5;
}

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

.chart-range {
  margin-top: 0.45rem;
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.ranking-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.insight-card {
  display: grid;
  gap: 0.7rem;
}

.metric-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.metric-list li {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
  padding: 0.7rem 0.8rem;
  border-radius: 16px;
  background: rgba(8, 14, 23, 0.82);
  border: 1px solid rgba(132, 164, 196, 0.12);
}

.metric-list strong {
  color: var(--text);
  font-weight: 600;
}

.metric-list .metric-key {
  min-width: 0;
  overflow-wrap: anywhere;
}

.empty-window {
  display: grid;
  gap: 0.45rem;
}

.custom-shell {
  padding: 1.2rem;
  display: grid;
  gap: 1rem;
}

.custom-controls {
  display: grid;
  gap: 0.85rem;
}

.status-line,
#login-error,
#custom-status {
  min-height: 1.1rem;
}

.status-line,
#custom-status {
  color: var(--text-muted);
}

.error {
  color: var(--danger) !important;
}

@media (max-width: 1120px) {
  .hero-stats,
  .chart-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ranking-grid,
  .geo-layout,
  .login-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 780px) {
  .login-view,
  .app-header,
  .dashboard-shell {
    width: min(100%, calc(100% - 1rem));
    padding-inline: 0;
  }

  .app-header,
  .hero-header,
  .section-head {
    flex-direction: column;
  }

  .app-actions {
    width: 100%;
    justify-items: start;
  }

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

  .hero-stats,
  .chart-grid,
  .ranking-grid {
    grid-template-columns: 1fr;
  }

  .geo-map,
  .geo-countries {
    max-height: none;
    height: 320px;
  }

  .geo-countries {
    height: auto;
  }
}