:root {
  --primary: #0066cc;
  --primary-focus: #0071e3;
  --primary-dark: #2997ff;
  --ink: #1d1d1f;
  --muted: #7a7a7a;
  --hairline: #e0e0e0;
  --canvas: #ffffff;
  --parchment: #f5f5f7;
  --pearl: #fafafc;
  --dark-1: #272729;
  --dark-2: #2a2a2c;
  --nav: #000000;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--parchment);
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  font-size: 17px;
  line-height: 1.47;
  letter-spacing: -0.374px;
}

button,
input,
select,
textarea {
  font: inherit;
}

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

.sub-nav {
  position: sticky;
  top: 0;
  z-index: 25;
  min-height: calc(52px + var(--safe-top));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: calc(8px + var(--safe-top)) max(18px, env(safe-area-inset-left)) 8px max(18px, env(safe-area-inset-right));
  background: rgba(245, 245, 247, 0.84);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.sub-nav strong {
  font-size: 21px;
  line-height: 1.19;
  letter-spacing: 0.231px;
  white-space: nowrap;
}

.tabs {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 999px;
}

.tab,
.chip {
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.tab {
  min-width: 58px;
  min-height: 34px;
  padding: 7px 12px;
  font-size: 14px;
  line-height: 1.29;
  letter-spacing: -0.224px;
}

.tab.is-active,
.chip.is-selected {
  background: var(--primary);
  color: #ffffff;
}

.panel-band {
  padding: 24px max(20px, env(safe-area-inset-left)) 72px max(20px, env(safe-area-inset-right));
}

.about-band {
  min-height: calc(100svh - 96px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 420px);
  align-items: center;
  gap: 48px;
  padding-top: 64px;
  background: var(--canvas);
}

.hero-copy {
  max-width: 760px;
  justify-self: end;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.29;
}

h1,
h2 {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif;
  font-weight: 600;
  letter-spacing: -0.28px;
}

h1 {
  max-width: 720px;
  font-size: 56px;
  line-height: 1.07;
}

h2 {
  font-size: 40px;
  line-height: 1.1;
}

.hero-copy p:last-child {
  max-width: 540px;
  margin: 18px 0 0;
  color: #333333;
  font-size: 24px;
  font-weight: 300;
  line-height: 1.5;
  letter-spacing: 0;
}

.hero-art {
  justify-self: start;
}

.phone-frame {
  width: min(74vw, 340px);
  aspect-ratio: 0.72;
  display: grid;
  place-items: center;
  border: 12px solid var(--ink);
  border-radius: 46px;
  background: var(--parchment);
  box-shadow: rgba(0, 0, 0, 0.22) 3px 5px 30px 0;
}

.qr-product {
  width: 62%;
  aspect-ratio: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10%;
}

.qr-product span {
  background: var(--ink);
  border-radius: 8px;
}

.qr-product span:nth-child(2),
.qr-product span:nth-child(4),
.qr-product span:nth-child(9) {
  background: var(--primary);
  border-radius: 999px;
}

.panel-band {
  background: var(--parchment);
}

.panel-band[hidden] {
  display: none;
}

.dark-band {
  background: var(--dark-1);
  color: #ffffff;
}

.section-head {
  width: min(100%, 1180px);
  margin: 0 auto 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.button-primary,
.button-secondary {
  min-height: 44px;
  border-radius: 999px;
  padding: 11px 22px;
  border: 1px solid var(--primary);
  cursor: pointer;
  transition: transform 120ms ease, background-color 120ms ease;
}

.button-primary {
  background: var(--primary);
  color: #ffffff;
}

.button-secondary {
  background: transparent;
  color: var(--primary);
}

.button-secondary.dark {
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}

.scan-toggle {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: #ffffff;
  color: var(--ink);
  font-size: 14px;
  font-weight: 400;
  line-height: 1.29;
  cursor: pointer;
}

.scan-toggle input {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--primary);
}

.button-primary:active,
.button-secondary:active,
.tab:active,
.chip:active {
  transform: scale(0.95);
}

.button-primary:focus-visible,
.button-secondary:focus-visible,
.tab:focus-visible,
.chip:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary-focus);
  outline-offset: 2px;
}

.scanner-layout,
.creator-layout {
  width: min(100%, 1180px);
  margin: 0 auto;
  display: grid;
  gap: 24px;
}

.scanner-layout {
  grid-template-columns: minmax(280px, 420px) minmax(0, 1fr);
  align-items: start;
}

.scanner-stage,
.result-panel,
.config-panel,
.preview-panel {
  border: 1px solid var(--hairline);
  border-radius: 18px;
  background: #ffffff;
}

.scanner-stage {
  min-height: 360px;
  max-height: 420px;
  aspect-ratio: 1;
  position: relative;
  overflow: hidden;
  display: grid;
  place-items: center;
  background: var(--dark-2);
}

#scannerVideo {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
}

.scan-frame {
  position: absolute;
  width: min(64vw, 250px);
  aspect-ratio: 1;
  border: 2px solid rgba(255, 255, 255, 0.92);
  border-radius: 28px;
  box-shadow: 0 0 0 999px rgba(0, 0, 0, 0.32);
}

.scanner-state {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 66px;
  margin: 0;
  color: #ffffff;
  text-align: center;
  font-size: 14px;
  line-height: 1.29;
}

.scanner-controls {
  position: absolute;
  left: 10px;
  right: 10px;
  bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-wrap: nowrap;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(245, 245, 247, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.scanner-controls .button-primary,
.scanner-controls .button-secondary,
.scanner-controls .scan-toggle {
  flex: 0 1 auto;
  min-height: 32px;
  padding: 6px 10px;
  font-size: 12px;
  line-height: 1.2;
  white-space: nowrap;
}

.scanner-controls .scan-toggle {
  gap: 5px;
}

.scanner-controls .scan-toggle input {
  width: 14px;
  height: 14px;
}

.result-panel,
.config-panel,
.preview-panel {
  padding: 24px;
}

.result-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.file-drop {
  min-height: 56px;
  display: grid;
  place-items: center;
  border: 1px solid var(--hairline);
  border-radius: 18px;
  background: var(--pearl);
  color: var(--primary);
  cursor: pointer;
}

.file-drop input {
  display: none;
}

.camera-hint {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.43;
  letter-spacing: -0.224px;
}

.camera-hint:empty {
  display: none;
}

.camera-hint.is-warning {
  color: #b64400;
}

.logo-picker {
  display: block;
}

.logo-picker span {
  min-height: 44px;
  margin-top: 8px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--pearl);
  color: var(--primary);
  font-weight: 400;
  cursor: pointer;
}

.logo-picker input {
  display: none;
}

label,
legend {
  color: #333333;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.29;
  letter-spacing: -0.224px;
}

textarea,
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
select {
  width: 100%;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 11px;
  background: #ffffff;
  color: var(--ink);
}

textarea {
  min-height: 220px;
  padding: 14px;
  resize: vertical;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
select {
  min-height: 44px;
  margin-top: 8px;
  padding: 10px 12px;
}

input[type="color"] {
  width: 100%;
  min-height: 44px;
  margin-top: 8px;
  border: 1px solid var(--hairline);
  border-radius: 11px;
  background: #ffffff;
  padding: 5px;
}

input[type="range"] {
  width: 100%;
  margin-top: 12px;
  accent-color: var(--primary);
}

output {
  display: inline-block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1;
}

.creator-layout {
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  align-items: start;
}

.config-panel {
  display: grid;
  gap: 20px;
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

legend {
  margin-bottom: 12px;
  color: var(--ink);
}

.chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--hairline);
  background: var(--canvas);
  font-size: 14px;
  line-height: 1.29;
}

.chip.is-selected {
  border-color: var(--primary);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.wide,
.field-wide {
  grid-column: 1 / -1;
}

.preview-panel {
  position: sticky;
  top: calc(112px + var(--safe-top));
  display: grid;
  gap: 16px;
}

.preview-surface {
  position: relative;
  min-height: 420px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 8px;
  background: var(--parchment);
}

#qrPreview {
  display: grid;
  place-items: center;
  max-width: 100%;
}

#qrPreview canvas,
#qrPreview svg {
  max-width: min(100%, 360px);
  height: auto;
  border-radius: 5px;
}

.center-label {
  position: absolute;
  left: 50%;
  top: 50%;
  max-width: 46%;
  transform: translate(-50%, -50%);
  color: var(--ink);
  text-align: center;
  font-weight: 600;
  line-height: 1.1;
  overflow-wrap: anywhere;
  pointer-events: none;
}

.center-label.effect-pill {
  padding: 8px 14px;
  border-radius: 999px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.center-label.effect-knockout {
  padding: 12px 16px;
  border-radius: 8px;
  background: #ffffff;
}

#payloadPreview {
  min-height: 124px;
  font-size: 14px;
}

.history-list {
  width: min(100%, 980px);
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.history-item {
  display: grid;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--hairline);
  border-radius: 18px;
  background: #ffffff;
}

.history-item time {
  color: var(--muted);
  font-size: 12px;
}

.history-item pre {
  margin: 0;
  color: var(--ink);
  font: inherit;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.history-item button {
  justify-self: start;
}

.empty-history {
  margin: 0;
  color: var(--muted);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: calc(18px + var(--safe-bottom));
  z-index: 60;
  max-width: calc(100vw - 40px);
  transform: translate(-50%, 20px);
  opacity: 0;
  pointer-events: none;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(29, 29, 31, 0.92);
  color: #ffffff;
  font-size: 14px;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (max-width: 900px) {
  .about-band,
  .scanner-layout,
  .creator-layout {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-art {
    justify-self: center;
    text-align: center;
  }

  .hero-copy p:last-child {
    margin-left: auto;
    margin-right: auto;
  }

  .preview-panel {
    position: static;
  }
}

@media (max-width: 640px) {
  .sub-nav {
    align-items: stretch;
    flex-direction: column;
    gap: 8px;
  }

  .tabs {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
  }

  .tab {
    min-width: 0;
  }

  .panel-band {
    padding-top: 20px;
    padding-bottom: 56px;
  }

  .about-band {
    min-height: auto;
    padding-top: 48px;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 34px;
  }

  .hero-copy p:last-child {
    font-size: 21px;
    line-height: 1.3;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .actions {
    width: 100%;
  }

  .actions > button {
    flex: 1 1 140px;
  }

  .scanner-stage,
  #scannerVideo {
    min-height: 300px;
  }

  .scanner-controls {
    border-radius: 18px;
  }

  .scanner-controls .button-primary,
  .scanner-controls .button-secondary {
    flex: 1 1 0;
    min-width: 0;
  }

  .scanner-controls .scan-toggle {
    flex: 1.15 1 0;
    justify-content: center;
    min-width: 0;
  }

  .result-panel,
  .config-panel,
  .preview-panel {
    padding: 18px;
    border-radius: 18px;
  }

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

  .preview-surface {
    min-height: 340px;
  }
}

@media (max-width: 419px) {
  body {
    font-size: 16px;
  }

  .panel-band {
    padding-left: max(16px, env(safe-area-inset-left));
    padding-right: max(16px, env(safe-area-inset-right));
  }

  h1 {
    font-size: 30px;
  }

  h2 {
    font-size: 28px;
  }

  .chip {
    flex: 1 1 calc(50% - 8px);
  }
}