:root {
  --brand: #05dda6;
  --brand-dark: #04c08f;
  --white: #ffffff;
  --text: #1d1d1f;
  --muted: #6b7280;
  --border: #d9dde3;
  --border-strong: #c8cdd6;
  --danger: #b6453b;
  --success: #15795f;
  --surface: #f8fafb;
  --radius: 10px;
  --control-height: 58px;
  --content-max: 720px;
  --side-min: 340px;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--white);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
input {
  font: inherit;
}

.page-shell {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: minmax(0, var(--content-max));
  justify-content: start;
  background: var(--white);
}

.app-panel {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--white);
}


.app-content {
  flex: 1 1 auto;
  min-height: calc(100vh - 92px);
  min-height: calc(100dvh - 92px);
  display: flex;
  align-items: center;
  padding: 8px 34px 40px;
}

.decoder {
  width: 100%;
  animation: appEnter 360ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes appEnter {
  from {
    opacity: 0;
    transform: translate3d(16px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.heading-block {
  margin-bottom: 30px;
}

.heading-block h1 {
  margin: 0;
  color: var(--text);
  font-size: clamp(2rem, 2.1vw, 2.45rem);
  font-weight: 650;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.heading-block p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.vin-label {
  display: block;
  margin-bottom: 9px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}

#vin {
  display: block;
  width: 100%;
  height: var(--control-height);
  padding: 0 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--text);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.055em;
  text-transform: uppercase;
  outline: none;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

#vin:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(5, 221, 166, 0.12);
}

.button-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.primary-button,
.secondary-button {
  min-height: var(--control-height);
  padding: 14px 20px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background-color 140ms ease, border-color 140ms ease, transform 140ms ease;
}

.primary-button {
  border: 1px solid var(--brand);
  background: var(--brand);
  color: var(--white);
}

.primary-button:hover {
  border-color: var(--brand-dark);
  background: var(--brand-dark);
}

.secondary-button {
  border: 1px solid var(--border-strong);
  background: var(--white);
  color: var(--text);
}

.secondary-button:hover {
  border-color: #b8bec8;
  background: var(--surface);
}

.primary-button:active,
.secondary-button:active {
  transform: translateY(1px);
}

.primary-button:disabled,
.secondary-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.scan-help {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.status {
  min-height: 22px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 13px;
}

.status.ok {
  color: var(--success);
}

.status.err {
  color: var(--danger);
}

.result-wrap {
  margin-top: 18px;
  border-top: 1px solid #eceff3;
  padding-top: 22px;
}

.result-wrap.result-enter {
  animation: resultEnter 280ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes resultEnter {
  from {
    opacity: 0;
    transform: translate3d(0, 8px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

.result-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}

.result-heading-row h2 {
  margin: 0;
  color: var(--text);
  font-size: 20px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.copy-button {
  flex: 0 0 auto;
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--white);
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background-color 140ms ease, border-color 140ms ease, transform 140ms ease;
}

.copy-button:hover {
  border-color: #b8bec8;
  background: var(--surface);
}

.copy-button:active {
  transform: translateY(1px);
}

.vehicle-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  padding: 8px 20px;
}

.vehicle-details {
  margin: 0;
}

.vehicle-details div {
  display: grid;
  grid-template-columns: 125px minmax(0, 1fr);
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid #eceff3;
}

.vehicle-details div:last-child {
  border-bottom: 0;
}

.vehicle-details dt {
  color: var(--muted);
  font-size: 13px;
}

.vehicle-details dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--text);
  font-size: 15px;
  font-weight: 650;
}

.copy-status {
  min-height: 20px;
  margin-top: 8px;
  color: var(--success);
  font-size: 12px;
  text-align: right;
}

.visual-panel {
  display: none;
}

[hidden] {
  display: none !important;
}

.primary-button:focus-visible,
.secondary-button:focus-visible,
.copy-button:focus-visible,
#vin:focus-visible {
  outline: 3px solid rgba(29, 29, 31, 0.28);
  outline-offset: 3px;
}

@media (min-width: 1080px) {
  .page-shell {
    grid-template-columns: minmax(620px, 760px) minmax(var(--side-min), 1fr);
    column-gap: 48px;
    padding-left: clamp(28px, 4vw, 64px);
    padding-right: clamp(28px, 4vw, 64px);
  }


  .app-content {
    padding-left: clamp(34px, 3.2vw, 52px);
    padding-right: clamp(34px, 3.2vw, 52px);
    padding-bottom: 40px;
  }

  .visual-panel {
    display: block;
    min-height: 100vh;
    min-height: 100dvh;
    border-left: 1px solid #edf0f3;
    background-color: var(--white);
    background-image: url("vin-side-image.jpg");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
  }
}

@media (max-width: 800px) {
  .page-shell {
    grid-template-columns: 1fr;
  }


  .app-content {
    min-height: calc(100dvh - 82px);
    padding: 8px 22px max(28px, env(safe-area-inset-bottom));
  }

  .heading-block h1 {
    font-size: 1.9rem;
  }

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

  .scan-help {
    margin-top: 12px;
  }

  .result-heading-row {
    align-items: flex-start;
  }

  .vehicle-details div {
    grid-template-columns: 100px minmax(0, 1fr);
  }
}

@media (max-width: 430px) {
  .result-heading-row {
    flex-direction: column;
  }

  .copy-button {
    width: auto;
  }
}

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