:root {
  --bg: #f4f6f5;
  --ink: #0b3e52;
  --muted: #6b7280;
  --body: #5b605f;
  --card: #ffffff;
  --border: rgba(0, 0, 0, 0.1);
  --good: #2ecc71;
  --accent: #1f8ff8;
  --line: #f28a4a;
}

html {
  background: var(--bg);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: #2f3333;
  font-family: "Manrope", sans-serif;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 0;
}

.tablet-frame {
  background: var(--bg);
  border: none;
  border-radius: 0;
  box-shadow: none;
  margin: 0;
  max-width: none;
  min-height: 100dvh;
  padding: calc(59px + env(safe-area-inset-top)) calc(55px + env(safe-area-inset-right)) calc(50px + env(safe-area-inset-bottom)) calc(55px + env(safe-area-inset-left));
}

.dashboard-header h1 {
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(2rem, 3.7vw, 2.55rem);
  letter-spacing: -0.03em;
  margin: 0;
}

.dashboard-header p {
  color: var(--muted);
  font-size: 16.83px;
  letter-spacing: 0.13em;
  margin: 6px 0 0;
}

.hero {
  display: grid;
  gap: 46px;
  grid-template-columns: 332px 322px;
  margin-top: 64px;
}

.gauge-panel {
  height: 230px;
  position: relative;
}

.coral-mascot {
  display: block;
  filter: drop-shadow(0 5px 4px rgba(0, 0, 0, 0.15));
  height: auto;
  left: 50%;
  object-fit: contain;
  pointer-events: none;
  position: absolute;
  top: 60px;
  transform: translateX(-50%);
  width: 90px;
  z-index: 4;
}

.meter-wrapper {
  max-width: 500px;
  position: relative;
  transform: translateY(18px);
  width: 100%;
  z-index: 2;
}

.gauge-svg {
  cursor: default;
  height: auto;
  overflow: visible;
  width: 100%;
}

.gauge-base {
  fill: none;
  stroke: url(#gaugeGradient);
  stroke-linecap: round;
  stroke-width: 16;
}

.knob-pill {
  cursor: default;
  fill: #fff;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.2));
  transition: transform 0.1s ease-out;
}

.score-row {
  align-items: baseline;
  display: flex;
  gap: 14px;
}

.health-headline {
  color: #5b605f;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 8px;
  text-transform: uppercase;
}

.score {
  color: var(--good);
  font-size: 65.3px;
  font-weight: 800;
  letter-spacing: -0.04em;
  margin: 0;
  transition: color 220ms ease;
}

.delta {
  align-items: center;
  color: #005eb4;
  display: flex;
  font-size: 19px;
  font-weight: 700;
  gap: 6px;
  margin: 0;
  transition: color 220ms ease;
}

.delta span {
  display: inline-block;
  font-size: 18px;
  font-weight: bold;
  line-height: 1;
  width: auto;
  transition: transform 180ms ease;
}

.delta img.is-down {
  transform: rotate(90deg);
}

.delta-negative {
  color: #ef4444;
}

.delta-neutral {
  color: #6b7280;
}

.summary {
  color: var(--body);
  font-size: 16.3px;
  line-height: 1.62;
  margin: 20px 0 0;
}

.tank-status {
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  display: flex;
  justify-content: space-between;
  margin-top: 28px;
  padding-top: 22px;
}

.tank-status span,
.tank-status strong {
  font-size: 13.6px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.tank-status span {
  color: #5b605f;
}

.tank-status strong {
  color: #16a34a;
}

.status-stable {
  color: #16a34a;
}

.status-watch {
  color: #d97706;
}

.status-alert {
  color: #dc2626;
}

.vitals {
  margin-top: 65px;
}

.vitals h2 {
  color: #5b605f;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 10px;
}

.vital-grid {
  display: grid;
  gap: 14px 16px;
  grid-template-columns: 1fr 1fr;
}

.vital-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  min-height: 107px;
  padding: 12px;
}

.card-top {
  display: flex;
  justify-content: space-between;
}

.card-icon {
  display: block;
}

.icon-temp {
  height: 15px;
  width: 7.5px;
}

.icon-ph {
  height: 13.5px;
  width: 13.543px;
}

.icon-salinity,
.icon-redox {
  height: 15px;
  width: 12px;
}

.card-top small {
  align-items: center;
  color: #005eb4;
  display: flex;
  font-size: 10px;
  font-weight: 700;
  gap: 2px;
  line-height: 1;
}

.card-top small span {
  align-items: center;
  display: inline-flex;
  font-size: 14px;
  justify-content: center;
  line-height: 1;
  min-width: 12px;
}

.trend-temp,
.trend-ph,
.trend-salinity,
.trend-redox {
  align-items: center;
  display: inline-flex;
  font-size: 14px;
  justify-content: center;
  line-height: 1;
  min-width: 12px;
}

.trend-ph {
  height: 3.75px;
  width: 7.917px;
}

.trend-salinity {
  height: 3.083px;
  width: 5px;
}

.label {
  color: #5b605f;
  font-size: 10px;
  letter-spacing: 0.08em;
  margin: 14px 0 0;
}

.value {
  font-size: 36px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 6px 0 0;
}

.chart-section {
  margin-top: 60px;
}

.chart-section h3 {
  color: #5b605f;
  font-size: 12px;
  margin: 0 0 10px;
}

.chart-section h3 span {
  color: #6b7280;
  font-weight: 500;
}

.chart-wrapper {
  display: grid;
  gap: 8px;
  grid-template-columns: 48px 664px;
}

.y-axis {
  color: #8a8a8a;
  display: flex;
  flex-direction: column;
  font-size: 14px;
  gap: 13px;
  margin-top: 2px;
}

.chart-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  height: 119px;
  position: relative;
  width: 664px;
}

.chart-grid,
.chart-line {
  position: absolute;
}

.chart-grid {
  height: 3px;
  left: 0.5px;
  top: 58px;
  width: 662.758px;
}

.chart-line {
  height: 22px;
  left: 3px;
  top: 43px;
  width: 656.13px;
}

.chart-marker {
  height: 113px;
  left: 458.55px;
  position: absolute;
  top: 2px;
  width: 20.987px;
}

.tooltip {
  align-items: center;
  background: #309dff;
  border-radius: 0 10px 10px 0;
  color: #fff;
  display: inline-flex;
  font-size: 15.95px;
  font-weight: 700;
  line-height: 1;
  min-height: 19px;
  padding: 2px 14px;
  position: absolute;
  left: 469.59px;
  top: 44px;
  white-space: nowrap;
}

@media (min-width: 769px) and (max-width: 1194px) and (orientation: portrait) {
  .tablet-frame {
    padding: calc(54px + env(safe-area-inset-top)) calc(44px + env(safe-area-inset-right)) calc(44px + env(safe-area-inset-bottom)) calc(44px + env(safe-area-inset-left));
  }

  .hero {
    gap: 32px;
    grid-template-columns: 332px 322px;
    justify-content: space-between;
  }

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

  .chart-wrapper {
    grid-template-columns: 48px minmax(0, 1fr);
  }

  .chart-card {
    width: 100%;
  }
}

@media (max-width: 768px) {
  .tablet-frame {
    padding: calc(28px + env(safe-area-inset-top)) calc(20px + env(safe-area-inset-right)) calc(24px + env(safe-area-inset-bottom)) calc(20px + env(safe-area-inset-left));
  }

  .hero {
    grid-template-columns: 1fr;
    margin-top: 32px;
  }

  .hero-stats {
    max-width: 540px;
  }

  .summary {
    font-size: 1.1rem;
  }

  .score {
    font-size: 52px;
  }

  .gauge-svg {
    width: 100%;
  }

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

  .chart-section {
    margin-top: 60px;
  }

  .chart-wrapper {
    grid-template-columns: 40px minmax(0, 1fr);
  }

  .chart-card {
    height: 122px;
    width: 100%;
  }

  .chart-grid,
  .chart-line,
  .chart-marker {
    left: 0;
    transform: none;
    width: 100%;
  }

  .chart-grid {
    top: 58px;
  }

  .chart-marker {
    height: 113px;
    left: 75%;
    width: 20.987px;
  }

  .tooltip {
    left: auto;
    right: 20px;
  }
}

@media (min-height: 1000px) {
  .chart-section {
    margin-top: 70px;
  }
}