@font-face {
  font-family: "Mozilla Text";
  src: url("/mozilla-text.woff2") format("woff2");
  font-display: swap;
}

@font-face {
  font-family: "Inter";
  src: url("/inter.woff2") format("woff2");
  font-display: swap;
}

:root,
[data-theme="dark"] {
  color-scheme: dark;
  --signal-ground: #060712;
  --signal-panel: #0c1020;
  --signal-panel-raised: #12182b;
  --signal-grid: rgb(0 217 232 / 0.15);
  --signal-ink: #f5f6ff;
  --signal-muted: #b8bbcf;
  --signal-faint: #858aa6;
  --signal-border: #303854;
  --signal-cyan: #00d9e8;
  --signal-violet: #8066ff;
  --signal-magenta: #ff398f;
  --signal-live: #58e080;
  --signal-error: #ff7a9f;
  --signal-shadow: rgb(0 0 0 / 0.42);
  --signal-focus: #82f5ff;
}

[data-theme="light"] {
  color-scheme: light;
  --signal-ground: #f4f2ec;
  --signal-panel: #fffdf9;
  --signal-panel-raised: #f0effa;
  --signal-grid: rgb(25 70 105 / 0.14);
  --signal-ink: #10121c;
  --signal-muted: #45495c;
  --signal-faint: #656b82;
  --signal-border: #c9cad5;
  --signal-cyan: #006f80;
  --signal-violet: #5735d1;
  --signal-magenta: #c81264;
  --signal-live: #187a3a;
  --signal-error: #a70f43;
  --signal-shadow: rgb(37 41 62 / 0.16);
  --signal-focus: #006c7c;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 100%;
  background: var(--signal-ground);
}

body {
  min-width: 20rem;
  min-height: 100svh;
  margin: 0;
  background:
    radial-gradient(
      circle at 78% 14%,
      color-mix(in srgb, var(--signal-cyan) 9%, transparent),
      transparent 30rem
    ),
    radial-gradient(
      circle at 14% 70%,
      color-mix(in srgb, var(--signal-magenta) 8%, transparent),
      transparent 34rem
    ),
    var(--signal-ground);
  color: var(--signal-ink);
  font-family: "Inter", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
input {
  font: inherit;
}

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

button:focus-visible,
a:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--signal-focus);
  outline-offset: 4px;
}

a {
  color: inherit;
}

.utility-label,
.wordmark,
.dormant-field header,
.dormant-field footer,
.diagnostic,
.site-header,
.metric-grid span,
.metric-grid small,
.signal-panel > header p,
.signal-panel > footer,
.record-card header span,
.boundary-card a,
.dashboard-status {
  font-family: "Mozilla Text", sans-serif;
  font-weight: 600;
}

.utility-label {
  margin: 0;
  color: var(--signal-cyan);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Login: one recognizable action beside a dormant, explicitly non-data field. */
.login-page {
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 4rem);
  overflow-x: hidden;
}

.login-shell {
  width: min(100%, 76rem);
  display: grid;
  grid-template-columns: minmax(18rem, 0.78fr) minmax(24rem, 1.22fr);
  align-items: center;
  gap: clamp(2rem, 7vw, 7rem);
}

.login-copy {
  position: relative;
  z-index: 2;
}

.login-copy h1 {
  max-width: 10ch;
  margin: 0.8rem 0 1.25rem;
  font-size: clamp(3rem, 7vw, 6.4rem);
  line-height: 0.88;
  letter-spacing: -0.07em;
  text-wrap: balance;
}

.login-lead {
  max-width: 35rem;
  margin: 0;
  color: var(--signal-muted);
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.3rem);
  line-height: 1.6;
  text-wrap: pretty;
}

.login-form {
  margin-top: 2rem;
}

.login-form label {
  display: block;
  margin-bottom: 0.55rem;
  color: var(--signal-muted);
  font-size: 0.85rem;
  font-weight: 650;
}

.field-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.6rem;
}

.field-row input,
.field-row button {
  min-height: 3.25rem;
  border-radius: 0.7rem;
}

.field-row input {
  min-width: 0;
  border: 1px solid var(--signal-border);
  background: var(--signal-panel);
  color: var(--signal-ink);
  padding: 0.75rem 0.9rem;
}

.field-row input:focus {
  border-color: var(--signal-cyan);
}

.field-row button {
  border: 1px solid var(--signal-cyan);
  background: var(--signal-cyan);
  color: var(--signal-ground);
  padding: 0.7rem 1rem;
  cursor: pointer;
  font-weight: 750;
  transition:
    transform 160ms cubic-bezier(0.23, 1, 0.32, 1),
    box-shadow 160ms cubic-bezier(0.23, 1, 0.32, 1);
}

.field-row button:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 0.8rem 2rem
    color-mix(in srgb, var(--signal-cyan) 24%, transparent);
}

.field-row button:disabled {
  opacity: 0.7;
  cursor: wait;
}

.form-status {
  min-height: 1.5rem;
  margin: 0.6rem 0 0;
  color: var(--signal-error);
  font-size: 0.9rem;
}

.privacy-note {
  max-width: 42rem;
  margin: 1.25rem 0 0;
  color: var(--signal-faint);
  font-size: 0.82rem;
  line-height: 1.6;
}

.privacy-note a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  color: var(--signal-cyan);
  text-underline-offset: 0.2em;
}

.dormant-field {
  position: relative;
  isolation: isolate;
  width: min(100%, 44rem);
  aspect-ratio: 1.06;
  overflow: hidden;
  border: 1px solid
    color-mix(in srgb, var(--signal-cyan) 42%, var(--signal-border));
  border-radius: 1.1rem;
  background:
    linear-gradient(var(--signal-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--signal-grid) 1px, transparent 1px),
    radial-gradient(
      circle at 70% 48%,
      color-mix(in srgb, var(--signal-magenta) 20%, transparent),
      transparent 28%
    ),
    radial-gradient(
      circle at 42% 74%,
      color-mix(in srgb, var(--signal-cyan) 18%, transparent),
      transparent 32%
    ),
    #070916;
  background-size:
    3rem 3rem,
    3rem 3rem,
    auto,
    auto,
    auto;
  box-shadow: 0 2rem 5rem var(--signal-shadow);
  transform: perspective(75rem) rotateY(-2deg) rotateX(1deg);
}

.dormant-field::after {
  content: "";
  position: absolute;
  inset: -30% -80%;
  z-index: 4;
  pointer-events: none;
  background: linear-gradient(
    105deg,
    transparent 44%,
    rgb(0 217 232 / 0.1) 50%,
    transparent 56%
  );
  animation: signal-sweep 7s cubic-bezier(0.77, 0, 0.175, 1) infinite;
}

.dormant-field header,
.dormant-field footer {
  position: absolute;
  right: 1rem;
  left: 1rem;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  color: #c3c8df;
  font-size: 0.62rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.dormant-field header {
  top: 1rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid rgb(0 217 232 / 0.22);
}

.dormant-field header span:last-child {
  color: #ff76ad;
}

.dormant-field footer {
  bottom: 0.8rem;
}

.dormant-field svg {
  position: absolute;
  inset: 2.6rem 0 0;
  width: 100%;
  height: calc(100% - 2.6rem);
}

.dormant-mass {
  fill: url(#dormant-fill);
  opacity: 0.2;
}

.dormant-points {
  fill: url(#dormant-points);
  color: #00d9e8;
  opacity: 0.78;
}

.dormant-ridge {
  fill: none;
  stroke: url(#dormant-fill);
  stroke-width: 4;
  filter: drop-shadow(0 0 8px rgb(128 102 255 / 0.72));
}

.diagnostic {
  position: absolute;
  top: 24%;
  left: 8%;
  z-index: 6;
  display: grid;
  grid-template-columns: auto auto;
  gap: 0.65rem 1.6rem;
  width: min(68%, 22rem);
  border: 1px solid rgb(0 217 232 / 0.38);
  border-radius: 0.7rem;
  background: rgb(8 11 26 / 0.9);
  color: #c3c8df;
  padding: 1.15rem;
  font-size: 0.7rem;
}

.diagnostic strong {
  color: #fff;
  text-align: right;
}

/* Authenticated dashboard. */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 4.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--signal-border);
  background: color-mix(in srgb, var(--signal-ground) 88%, transparent);
  padding: 0.7rem max(1rem, calc((100vw - 82rem) / 2));
  backdrop-filter: blur(20px);
}

.wordmark {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 750;
  letter-spacing: 0.03em;
  text-decoration: none;
}

.wordmark span {
  color: var(--signal-cyan);
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-button,
.quiet-button,
.range-control button {
  min-height: 2.75rem;
  border: 1px solid var(--signal-border);
  border-radius: 999px;
  background: var(--signal-panel);
  color: var(--signal-ink);
  cursor: pointer;
}

.icon-button {
  min-width: 2.75rem;
}

.quiet-button {
  padding: 0.6rem 0.9rem;
  font-weight: 650;
}

.dashboard-shell {
  width: min(100% - 2rem, 82rem);
  margin-inline: auto;
  padding-block: clamp(2.5rem, 6vw, 6rem);
}

.dashboard-intro {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 2rem;
}

.dashboard-intro h1 {
  margin: 0.65rem 0 1rem;
  font-size: clamp(3rem, 9vw, 7rem);
  line-height: 0.86;
  letter-spacing: -0.075em;
}

.dashboard-intro > div > p:last-child {
  max-width: 48rem;
  margin: 0;
  color: var(--signal-muted);
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.2rem);
  line-height: 1.6;
  text-wrap: pretty;
}

.range-control {
  flex: none;
  display: flex;
  gap: 0.35rem;
}

.range-control button {
  min-width: 2.75rem;
  padding-inline: 0.7rem;
  font-weight: 700;
}

.range-control button.active {
  border-color: var(--signal-cyan);
  background: var(--signal-cyan);
  color: var(--signal-ground);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: clamp(2rem, 5vw, 4rem);
  overflow: hidden;
  border: 1px solid var(--signal-border);
  border-radius: 1rem;
  background: var(--signal-panel);
  box-shadow: 0 1rem 3rem var(--signal-shadow);
}

.metric-grid article {
  min-width: 0;
  padding: clamp(1rem, 2.5vw, 1.7rem);
}

.metric-grid article + article {
  border-left: 1px solid var(--signal-border);
}

.metric-grid span,
.metric-grid small {
  display: block;
  color: var(--signal-muted);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
}

.metric-grid span {
  text-transform: uppercase;
}

.metric-grid strong {
  display: block;
  margin-block: 0.55rem;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.metric-grid small {
  line-height: 1.45;
}

.signal-panel {
  margin-top: 1rem;
  overflow: hidden;
  border: 1px solid
    color-mix(in srgb, var(--signal-cyan) 45%, var(--signal-border));
  border-radius: 1rem;
  background: var(--signal-panel);
  box-shadow: 0 1.5rem 4rem var(--signal-shadow);
}

.signal-panel > header,
.signal-panel > footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1rem, 3vw, 1.5rem);
}

.signal-panel > header {
  border-bottom: 1px solid var(--signal-border);
}

.signal-panel > header h2 {
  margin: 0.3rem 0 0;
  font-size: clamp(1.35rem, 2vw, 1.8rem);
}

.source-time {
  flex: none;
  margin: 0;
  color: var(--signal-live);
  font-size: 0.7rem;
}

.terrain {
  position: relative;
  height: clamp(18rem, 42vw, 32rem);
  overflow: hidden;
  background:
    linear-gradient(var(--signal-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--signal-grid) 1px, transparent 1px),
    radial-gradient(
      circle at 65% 48%,
      color-mix(in srgb, var(--signal-magenta) 18%, transparent),
      transparent 32%
    ),
    radial-gradient(
      circle at 35% 72%,
      color-mix(in srgb, var(--signal-cyan) 14%, transparent),
      transparent 36%
    ),
    color-mix(in srgb, var(--signal-panel) 76%, #060712);
  background-size:
    3rem 3rem,
    3rem 3rem,
    auto,
    auto,
    auto;
  cursor: crosshair;
}

.terrain svg {
  width: 100%;
  height: 100%;
}

.terrain-mass {
  fill: url(#terrain-mass-gradient);
}

.terrain-dots {
  fill: url(#terrain-dot-pattern);
}

.terrain-line {
  fill: none;
  stroke: url(#terrain-line-gradient);
  stroke-width: 5;
  vector-effect: non-scaling-stroke;
  filter: drop-shadow(
    0 0 7px color-mix(in srgb, var(--signal-violet) 65%, transparent)
  );
  animation: ridge-arrive 700ms cubic-bezier(0.23, 1, 0.32, 1) both;
}

.terrain-cursor {
  stroke: var(--signal-ink);
  stroke-width: 1;
  stroke-dasharray: 5 5;
  opacity: 0.7;
  vector-effect: non-scaling-stroke;
}

.terrain-point {
  fill: var(--signal-panel);
  stroke: var(--signal-cyan);
  stroke-width: 4;
  vector-effect: non-scaling-stroke;
}

.terrain-readout {
  position: absolute;
  top: 1rem;
  left: 1rem;
  max-width: calc(100% - 2rem);
  border: 1px solid
    color-mix(in srgb, var(--signal-cyan) 55%, var(--signal-border));
  border-radius: 0.6rem;
  background: color-mix(in srgb, var(--signal-panel) 92%, transparent);
  padding: 0.7rem 0.8rem;
  color: var(--signal-ink);
  font-family: "Mozilla Text", sans-serif;
  font-size: 0.75rem;
  font-weight: 650;
  backdrop-filter: blur(12px);
}

.signal-panel > footer {
  border-top: 1px solid var(--signal-border);
  color: var(--signal-muted);
  font-size: 0.68rem;
  line-height: 1.45;
}

.record-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.record-card {
  overflow: hidden;
  border: 1px solid var(--signal-border);
  border-radius: 1rem;
  background: var(--signal-panel);
}

.record-card--wide {
  grid-column: 1 / -1;
}

.record-card header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--signal-border);
  padding: 0.9rem 1rem;
}

.record-card header span {
  color: var(--signal-cyan);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.record-card header strong {
  color: var(--signal-muted);
  font-size: 0.72rem;
}

.record-card ol {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 1rem;
  list-style: none;
}

.record-card li {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  padding-bottom: 0.5rem;
  color: var(--signal-muted);
  font-size: 0.88rem;
}

.record-card li span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.record-card li strong {
  color: var(--signal-ink);
  font-variant-numeric: tabular-nums;
}

.record-card li progress {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  overflow: hidden;
  appearance: none;
  border: 0;
  background: transparent;
}

.record-card li progress::-webkit-progress-bar {
  background: transparent;
}

.record-card li progress::-webkit-progress-value {
  background: linear-gradient(
    90deg,
    var(--signal-cyan),
    var(--signal-violet),
    var(--signal-magenta)
  );
}

.record-card li progress::-moz-progress-bar {
  background: linear-gradient(
    90deg,
    var(--signal-cyan),
    var(--signal-violet),
    var(--signal-magenta)
  );
}

.record-card li.empty {
  grid-template-columns: 1fr;
}

.boundary-card {
  margin-top: 1rem;
  border: 1px solid var(--signal-border);
  border-radius: 1rem;
  background:
    linear-gradient(
      135deg,
      color-mix(in srgb, var(--signal-violet) 12%, transparent),
      transparent 60%
    ),
    var(--signal-panel-raised);
  padding: clamp(1.25rem, 4vw, 3rem);
}

.boundary-card h2 {
  max-width: 18ch;
  margin: 0.7rem 0 1rem;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
  text-wrap: balance;
}

.boundary-card > p:not(.utility-label) {
  max-width: 62ch;
  color: var(--signal-muted);
  line-height: 1.65;
  text-wrap: pretty;
}

.boundary-card a {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  margin-top: 0.5rem;
  color: var(--signal-cyan);
  font-weight: 700;
  text-underline-offset: 0.3em;
}

.dashboard-status {
  margin: 1rem 0 0;
  color: var(--signal-faint);
  font-size: 0.72rem;
}

@keyframes signal-sweep {
  from {
    transform: translateX(-32%);
  }
  to {
    transform: translateX(32%);
  }
}

@keyframes ridge-arrive {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 56rem) {
  .login-shell {
    grid-template-columns: 1fr;
    max-width: 44rem;
  }

  .dormant-field {
    order: -1;
    max-height: 38svh;
  }

  .dashboard-intro {
    align-items: start;
    flex-direction: column;
  }

  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metric-grid article:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--signal-border);
  }

  .metric-grid article:nth-child(4) {
    border-top: 1px solid var(--signal-border);
  }
}

@media (max-width: 40rem) {
  .login-page {
    display: block;
    padding: 1rem;
  }

  .login-shell {
    gap: 1.5rem;
  }

  .dormant-field {
    max-height: none;
    aspect-ratio: 1.28;
  }

  .login-copy h1 {
    max-width: 12ch;
    font-size: clamp(2.7rem, 14vw, 4.4rem);
  }

  .field-row {
    grid-template-columns: 1fr;
  }

  .field-row button {
    width: 100%;
  }

  .site-header {
    min-height: 3.9rem;
  }

  .wordmark span {
    display: none;
  }

  .quiet-button {
    font-size: 0.78rem;
  }

  .dashboard-shell {
    width: min(100% - 1rem, 82rem);
  }

  .dashboard-intro h1 {
    font-size: clamp(3.25rem, 18vw, 5.2rem);
  }

  .range-control {
    width: 100%;
  }

  .range-control button {
    flex: 1;
  }

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

  .metric-grid article + article,
  .metric-grid article:nth-child(3) {
    border-top: 1px solid var(--signal-border);
    border-left: 0;
  }

  .signal-panel > header,
  .signal-panel > footer {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .record-card--wide {
    grid-column: auto;
  }

  .record-card header {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (forced-colors: active) {
  .dormant-field,
  .terrain,
  .metric-grid,
  .record-card,
  .boundary-card {
    border: 1px solid CanvasText;
    background: Canvas;
  }

  .record-card li progress {
    background: CanvasText;
  }
}