:root {
  color-scheme: light;
  --ink: #17231f;
  --muted: #66736d;
  --line: #dfe7e0;
  --paper: #f5f8f3;
  --card: #ffffff;
  --green: #2f8a5f;
  --green-soft: #dff1e7;
  --blue: #2d7fb8;
  --blue-soft: #dfedf7;
  --amber: #d98b2b;
  --red: #c84d4d;
  --shadow: 0 20px 60px rgba(26, 46, 35, 0.12);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(245, 248, 243, 0.92), rgba(231, 241, 234, 0.96)),
    linear-gradient(120deg, rgba(47, 138, 95, 0.12), rgba(45, 127, 184, 0.1));
}

button,
input {
  font: inherit;
}

.auth-view {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.auth-card {
  width: min(420px, 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.auth-card h1 {
  margin-bottom: 10px;
  font-size: clamp(2rem, 10vw, 3.5rem);
}

.auth-copy,
.auth-message {
  color: var(--muted);
  line-height: 1.5;
}

.auth-form {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.auth-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-weight: 800;
}

.auth-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 13px;
  color: var(--ink);
  background: var(--paper);
  outline: none;
}

.password-field {
  position: relative;
  display: block;
  width: 100%;
}

.password-field input {
  display: block;
  padding-right: 52px;
}

.auth-form .password-toggle {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  display: inline-grid;
  width: 38px;
  height: 38px;
  min-height: 38px;
  place-items: center;
  border: 0;
  border-radius: 6px;
  padding: 0;
  color: var(--green);
  background: transparent;
  cursor: pointer;
  z-index: 2;
}

.eye-icon {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.eye-closed {
  display: none;
}

.password-toggle.is-visible .eye-open {
  display: none;
}

.password-toggle.is-visible .eye-closed {
  display: block;
}

.auth-form .password-toggle:hover,
.auth-form .password-toggle:focus-visible {
  background: var(--green-soft);
}

.auth-form .password-toggle:focus-visible {
  outline: 2px solid rgba(47, 138, 95, 0.35);
  outline-offset: 2px;
}

.auth-form input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(47, 138, 95, 0.14);
}

#loginButton,
.logout-button {
  border: 0;
  border-radius: 8px;
  color: #fff;
  background: var(--green);
  font-weight: 800;
  cursor: pointer;
}

#loginButton:disabled,
.logout-button:disabled {
  cursor: wait;
  opacity: 0.65;
}

#loginButton {
  min-height: 46px;
}

.auth-message {
  min-height: 24px;
  margin: 14px 0 0;
}

.dashboard {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  min-height: 210px;
  border-radius: 8px;
  padding: 30px;
  color: #fff;
  background:
    linear-gradient(rgba(19, 60, 43, 0.84), rgba(19, 60, 43, 0.62)),
    repeating-linear-gradient(
      105deg,
      rgba(255, 255, 255, 0.22) 0 2px,
      transparent 2px 78px
    ),
    linear-gradient(135deg, #245f46 0%, #3b9a68 48%, #88c27d 100%);
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 8px;
  color: #71d49d;
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 12px;
  font-size: clamp(2rem, 6vw, 4.8rem);
  line-height: 0.96;
}

h2 {
  margin-bottom: 0;
  font-size: 1.25rem;
}

.subtitle {
  max-width: 560px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  padding: 0 15px;
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(10px);
  white-space: nowrap;
}

.logout-button {
  min-height: 42px;
  padding: 0 15px;
  white-space: nowrap;
}

.pulse {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #7df0a7;
  box-shadow: 0 0 0 7px rgba(125, 240, 167, 0.18);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 18px 0;
}

.metric,
.chart-card,
.log-card,
.history-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.metric {
  padding: 20px;
}

.metric-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-end;
}

.metric-head span {
  color: var(--muted);
  font-weight: 800;
}

.metric-head strong {
  font-size: clamp(2rem, 6vw, 3.2rem);
  line-height: 1;
}

.metric p {
  margin: 12px 0 0;
  color: var(--muted);
}

.range {
  height: 10px;
  margin-top: 18px;
  overflow: hidden;
  border-radius: 999px;
  background: #edf2ee;
}

.range-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  transition: width 240ms ease;
}

.temperature .range-fill {
  background: linear-gradient(90deg, #f0c05c, #d95f48);
}

.humidity .range-fill {
  background: linear-gradient(90deg, #76b7dd, #2d7fb8);
}

.health .range-fill {
  background: linear-gradient(90deg, #90d8aa, #2f8a5f);
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 18px;
}

.monitor-grid {
  grid-template-columns: minmax(0, 1fr) 340px;
}

.chart-card,
.log-card,
.history-card {
  padding: 20px;
}

.chart-card,
.history-card {
  position: relative;
}

.chart-tooltip {
  position: absolute;
  z-index: 4;
  display: none;
  min-width: 140px;
  transform: translate(-50%, calc(-100% - 12px));
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  padding: 8px 10px;
  color: #fff;
  background: #26332e;
  box-shadow: 0 10px 28px rgba(26, 46, 35, 0.2);
  pointer-events: none;
  white-space: nowrap;
}

.chart-tooltip.is-visible {
  display: block;
}

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

.chart-tooltip span {
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.78rem;
}

.chart-tooltip.temperature-tooltip {
  background: #a94736;
}

.chart-tooltip.humidity-tooltip {
  background: #226b9e;
}

.history-card {
  margin-top: 18px;
}

.history-head {
  align-items: flex-end;
}

.history-picker {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 800;
}

.history-picker input {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--ink);
  background: var(--paper);
  outline: none;
}

.history-picker input:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(47, 138, 95, 0.14);
}

.history-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  min-height: 28px;
  margin-bottom: 12px;
  color: var(--muted);
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  margin-bottom: 18px;
}

.section-head .eyebrow {
  color: var(--green);
}

.compact {
  margin-bottom: 14px;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-weight: 700;
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.legend i {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.temp-dot {
  background: #d95f48;
}

.humid-dot {
  background: var(--blue);
}

#environmentChart {
  display: block;
  width: 100%;
  height: 360px;
}

#historyChart {
  display: block;
  width: 100%;
  height: 360px;
}

.side-panel {
  display: grid;
  gap: 18px;
}

.event-log {
  display: grid;
  gap: 10px;
  max-height: 250px;
  overflow: auto;
  margin: 0;
  padding: 0;
  list-style: none;
}

.event-log li {
  border-left: 4px solid var(--green);
  border-radius: 8px;
  padding: 10px 12px;
  background: var(--paper);
  color: var(--muted);
}

.event-log strong {
  display: block;
  color: var(--ink);
}

.event-log .warning {
  border-left-color: var(--amber);
}

.event-log .danger {
  border-left-color: var(--red);
}

@media (max-width: 900px) {
  .hero,
  .section-head {
    display: block;
  }

  .status-pill,
  .logout-button,
  .legend {
    margin-top: 18px;
  }

  .hero-actions {
    display: flex;
    justify-content: flex-start;
  }

  .metrics,
  .content-grid {
    grid-template-columns: 1fr;
  }

  #environmentChart {
    height: 320px;
  }
}

@media (max-width: 520px) {
  .dashboard {
    width: min(100% - 20px, 1180px);
    padding: 10px 0;
  }

  .hero,
  .metric,
  .chart-card,
  .log-card,
  .history-card {
    padding: 16px;
  }

  .hero {
    min-height: 260px;
  }
}