:root {
  color-scheme: light;
  --green: #114734;
  --clay: #e64c38;
  --sage: #5e7361;
  --sky: #a5bac9;
  --ink: #231f20;
  --ink-90: #414042;
  --warm: #d6d1ca;
  --warm-lt: #eae6e4;
  --white: #ffffff;
  --font: "Montserrat", "Gotham", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  background: var(--warm-lt);
  color: var(--ink);
  font-family: var(--font);
  font-size: 20px;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

main {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: max(32px, env(safe-area-inset-top)) max(32px, env(safe-area-inset-right))
    max(32px, env(safe-area-inset-bottom)) max(32px, env(safe-area-inset-left));
}

.screen {
  width: min(100%, 760px);
  padding: clamp(28px, 6vw, 64px);
  border-top: 10px solid var(--clay);
  border-radius: 24px;
  background: var(--white);
  box-shadow: 0 18px 48px rgb(17 71 52 / 14%);
}

.screen--home,
.screen--closed,
.screen--success {
  text-align: center;
}

.screen--success {
  border-top-color: var(--green);
}

.screen--stop {
  border-top-color: var(--sky);
  text-align: center;
}

h1,
h2 {
  color: var(--green);
  line-height: 1.12;
}

h1 {
  margin: 24px 0 32px;
  font-size: clamp(38px, 6vw, 58px);
  letter-spacing: 0.01em;
}

h1:focus {
  outline: none;
}

h2 {
  font-size: 32px;
}

p {
  margin: 0 0 28px;
}

.brand-logo {
  display: block;
  width: min(100%, 270px);
  height: auto;
  margin: 0 auto;
}

.logo-button {
  display: block;
  min-width: 64px;
  min-height: 64px;
  margin: 0 auto;
  padding: 0;
  border: 0;
  background: transparent;
}

.button {
  min-width: 180px;
  min-height: 72px;
  padding: 18px 28px;
  border: 3px solid var(--green);
  border-radius: 16px;
  background: var(--green);
  color: var(--white);
  font: 700 24px/1.2 var(--font);
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.button--secondary {
  background: var(--white);
  color: var(--green);
}

.button:active {
  transform: translateY(2px);
}

.button:focus-visible,
input:focus-visible,
.logo-button:focus-visible {
  outline: 5px solid var(--clay);
  outline-offset: 4px;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

form {
  display: grid;
  gap: 24px;
}

.field {
  display: grid;
  gap: 8px;
}

label {
  color: var(--green);
  font-size: 22px;
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 64px;
  padding: 12px 16px;
  border: 3px solid var(--sage);
  border-radius: 12px;
  background: var(--white);
  color: var(--ink);
  font: 24px/1.2 var(--font);
}

.date-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.error,
.status-message {
  padding: 18px;
  border-left: 8px solid var(--clay);
  background: var(--warm-lt);
  color: var(--ink);
  font-size: 24px;
  font-weight: 700;
}

.notice-url {
  overflow-wrap: anywhere;
  color: var(--green);
  font-weight: 700;
}

.camera {
  display: block;
  width: 100%;
  max-height: 52vh;
  margin: 0 0 24px;
  border: 6px solid var(--green);
  border-radius: 18px;
  background: var(--ink);
  object-fit: cover;
}

.camera-canvas {
  display: none;
}

.reference-label {
  margin-bottom: 4px;
  color: var(--ink-90);
  font-weight: 700;
}

.reference-code {
  color: var(--green);
  font-size: clamp(52px, 10vw, 84px);
  font-weight: 800;
  letter-spacing: 0.08em;
}

.device-list {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) 1.5fr;
  gap: 12px 24px;
  margin: 0 0 32px;
}

.device-list dt {
  color: var(--green);
  font-weight: 700;
}

.device-list dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.idle-dialog {
  position: fixed;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 28px;
  padding: 40px;
  background: rgb(17 71 52 / 94%);
  color: var(--white);
  text-align: center;
  z-index: 10;
}

.idle-dialog h2 {
  margin: 0;
  color: var(--white);
  font-size: 52px;
}

.idle-dialog .button {
  border-color: var(--white);
  background: var(--white);
  color: var(--green);
}

.idle-dialog .button:focus-visible {
  outline-color: var(--white);
}

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

@media (max-width: 620px) {
  main {
    padding: 18px;
  }

  .screen {
    padding: 26px 20px;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
    animation: none !important;
  }
}