:root {
  --bg: #0a0d12;
  --surface: #121720;
  --surface-raised: #171e28;
  --surface-soft: #1d2530;
  --ink: #f4f7f8;
  --muted: #94a0ae;
  --line: #2a3542;
  --accent: #69f0d1;
  --accent-soft: rgba(105, 240, 209, 0.1);
  --accent-ink: #07110f;
  --warning: #ffd769;
  --danger: #ff8585;
  --max-width: 1240px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% -8%, rgba(105, 240, 209, 0.12), transparent 34rem),
    var(--bg);
  font-family: "Noto Sans Thai", sans-serif;
  line-height: 1.6;
}

button,
input,
textarea {
  font: inherit;
}

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

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

.ambient-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.26;
  background-image:
    linear-gradient(rgba(105, 240, 209, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(105, 240, 209, 0.06) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(to bottom, #000, transparent 68%);
}

.site-header,
main,
footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin-inline: auto;
}

.site-header {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 700 0.96rem/1 "Chakra Petch", sans-serif;
  letter-spacing: 0.04em;
}

.brand-mark,
.source-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: 8px 2px 8px 2px;
  color: var(--accent-ink);
  background: var(--accent);
  font: 700 1.2rem/1 "Chakra Petch", sans-serif;
}

.brand-accent,
.eyebrow,
.product-type,
.panel-index {
  color: var(--accent);
}

.lab-status {
  padding: 8px 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(105, 240, 209, 0.34);
  border-radius: 999px;
  color: var(--accent);
  background: var(--accent-soft);
  font: 600 0.72rem/1 "Chakra Petch", sans-serif;
  letter-spacing: 0.09em;
}

.status-dot,
.check-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 11px currentColor;
}

main {
  padding: 28px 0 72px;
}

.connection-bar {
  min-height: 70px;
  padding: 13px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(18, 23, 32, 0.78);
  backdrop-filter: blur(18px);
}

.connection-source,
.connection-checks,
.check-item {
  display: flex;
  align-items: center;
}

.connection-source {
  gap: 10px;
}

.source-mark {
  width: 32px;
  height: 32px;
  color: #101703;
  background: #b9ff45;
  font-size: 1rem;
}

.source-mark.boyd {
  color: var(--accent-ink);
  background: var(--accent);
}

.connection-source div {
  display: grid;
  line-height: 1.2;
}

.connection-label {
  color: var(--muted);
  font-size: 0.72rem;
}

.connection-source strong {
  font-size: 0.85rem;
}

.flow-arrow {
  margin: 0 5px;
  color: var(--muted);
}

.connection-checks {
  gap: 9px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.check-item {
  gap: 7px;
  padding: 7px 9px;
  color: var(--accent);
  border-radius: 6px;
  background: var(--accent-soft);
  font: 600 0.67rem/1 "Chakra Petch", sans-serif;
  letter-spacing: 0.06em;
}

.check-item.is-missing {
  color: var(--warning);
  background: rgba(255, 215, 105, 0.09);
}

.check-item.is-error {
  color: var(--danger);
  background: rgba(255, 133, 133, 0.09);
}

.checkout-shell {
  padding-top: 34px;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.72fr);
  gap: 28px;
  align-items: start;
}

.page-heading {
  margin-bottom: 26px;
}

.eyebrow {
  margin: 0;
  font: 600 0.73rem/1.2 "Chakra Petch", sans-serif;
  letter-spacing: 0.14em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin: 9px 0 8px;
  font: 700 clamp(2rem, 4vw, 3.4rem)/1.1 "Chakra Petch", "Noto Sans Thai", sans-serif;
  letter-spacing: -0.035em;
}

.page-heading > p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.stepper {
  padding: 0;
  margin: 0 0 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: var(--surface);
}

.step {
  position: relative;
  min-height: 72px;
  padding: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
}

.step + .step {
  border-left: 1px solid var(--line);
}

.step > span {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--line);
  border-radius: 50%;
  font: 600 0.76rem/1 "Chakra Petch", sans-serif;
}

.step div {
  display: grid;
  line-height: 1.25;
}

.step strong {
  color: inherit;
  font-size: 0.86rem;
}

.step small {
  margin-top: 3px;
  font-size: 0.7rem;
}

.step.is-active {
  color: var(--ink);
  background: var(--surface-raised);
}

.step.is-active > span,
.step.is-complete > span {
  color: var(--accent-ink);
  border-color: var(--accent);
  background: var(--accent);
}

.step.is-complete {
  color: var(--accent);
}

.panel-card,
.order-summary,
.error-panel {
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--surface);
}

.panel-card {
  padding: 22px;
}

.panel-heading,
.summary-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.panel-heading {
  margin-bottom: 20px;
  padding-bottom: 17px;
  border-bottom: 1px solid var(--line);
}

.panel-heading > div {
  display: flex;
  align-items: center;
  gap: 11px;
}

.panel-index {
  font: 600 0.72rem/1 "Chakra Petch", sans-serif;
}

h2 {
  margin: 0;
  font: 600 1.2rem/1.3 "Chakra Petch", "Noto Sans Thai", sans-serif;
}

.readonly-label,
.default-label,
.item-count {
  padding: 6px 8px;
  border-radius: 5px;
  color: var(--muted);
  background: var(--surface-soft);
  font: 600 0.65rem/1 "Chakra Petch", sans-serif;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.default-label {
  color: var(--accent);
  background: var(--accent-soft);
}

.product-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
}

.product-image-wrap {
  height: 112px;
  border-radius: 11px;
  overflow: hidden;
  background: var(--surface-soft);
}

.product-image-wrap img,
.summary-product img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.product-type {
  margin-bottom: 6px;
  font: 600 0.7rem/1.25 "Chakra Petch", sans-serif;
  letter-spacing: 0.1em;
}

h3 {
  margin: 0 0 6px;
  font: 600 1.35rem/1.25 "Chakra Petch", sans-serif;
}

.product-id {
  margin-bottom: 13px;
  color: var(--muted);
  font: 500 0.72rem/1.2 "Chakra Petch", sans-serif;
}

.quantity-row {
  display: flex;
  align-items: center;
  gap: 13px;
  color: var(--muted);
  font-size: 0.82rem;
}

.quantity-row strong {
  color: var(--ink);
}

.product-price {
  margin: 0;
  color: var(--accent);
  font: 700 1.25rem/1 "Chakra Petch", sans-serif;
  white-space: nowrap;
}

.panel-actions {
  margin-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-actions.end {
  justify-content: flex-end;
}

.primary-button,
.secondary-button,
.details-toggle {
  min-height: 48px;
  padding: 12px 17px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 28px;
  border-radius: 7px;
  font-weight: 700;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

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

.primary-button:hover,
.primary-button:focus-visible {
  transform: translateY(-2px);
  background: #8af6dd;
}

.primary-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
}

.secondary-button,
.details-toggle {
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--surface);
}

.secondary-button:hover,
.secondary-button:focus-visible,
.details-toggle:hover,
.details-toggle:focus-visible {
  border-color: var(--accent);
}

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

.form-grid label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.82rem;
}

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

input,
textarea {
  width: 100%;
  padding: 12px 13px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-raised);
  font-size: 0.92rem;
  resize: none;
}

.payment-option {
  min-height: 88px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 13px;
  border: 1px solid var(--accent);
  border-radius: 10px;
  background: var(--accent-soft);
}

.payment-option > input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.payment-radio {
  width: 19px;
  height: 19px;
  flex: 0 0 auto;
  border: 5px solid var(--accent);
  border-radius: 50%;
  background: var(--surface);
}

.card-icon {
  min-width: 50px;
  padding: 9px;
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-raised);
  font: 700 0.72rem/1 "Chakra Petch", sans-serif;
  letter-spacing: 0.08em;
}

.payment-option > span:last-child {
  display: grid;
}

.payment-option small {
  margin-top: 3px;
  color: var(--muted);
}

.test-notice {
  margin-top: 14px;
  padding: 13px 15px;
  border-left: 3px solid var(--warning);
  color: var(--muted);
  background: rgba(255, 215, 105, 0.06);
  font-size: 0.84rem;
}

.test-notice strong {
  color: var(--ink);
}

.test-notice p {
  margin: 4px 0 0;
}

.order-summary {
  position: sticky;
  top: 18px;
  padding: 22px;
}

.summary-heading {
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.summary-heading .eyebrow {
  margin-bottom: 6px;
}

.summary-product {
  padding: 18px 0;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) auto;
  gap: 11px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.summary-product img {
  height: 52px;
  border-radius: 7px;
  background: var(--surface-soft);
}

.summary-product div {
  min-width: 0;
  display: grid;
  line-height: 1.35;
}

.summary-product div strong {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.88rem;
}

.summary-product span {
  color: var(--muted);
  font-size: 0.75rem;
}

.summary-product > strong {
  font: 600 0.88rem/1 "Chakra Petch", sans-serif;
  white-space: nowrap;
}

.price-list {
  padding: 17px 0;
  margin: 0;
  display: grid;
  gap: 9px;
  border-bottom: 1px solid var(--line);
}

.price-list div,
.summary-total {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.price-list dt,
.price-list dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.summary-total {
  padding: 18px 0;
}

.summary-total strong {
  color: var(--accent);
  font: 700 1.55rem/1 "Chakra Petch", sans-serif;
}

.journey-box {
  padding: 11px 12px;
  display: grid;
  gap: 4px;
  border-radius: 8px;
  color: var(--muted);
  background: var(--surface-raised);
}

.journey-box span {
  font: 600 0.63rem/1 "Chakra Petch", sans-serif;
  letter-spacing: 0.08em;
}

.journey-box code {
  overflow: hidden;
  color: var(--accent);
  font-size: 0.75rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.details-toggle {
  width: 100%;
  min-height: 42px;
  margin-top: 12px;
  justify-content: space-between;
  font-size: 0.8rem;
}

.tracking-details {
  margin-top: 10px;
  padding: 11px 12px;
  display: grid;
  gap: 9px;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: var(--surface-raised);
}

.tracking-details[hidden] {
  display: none;
}

.tracking-details div {
  min-width: 0;
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 8px;
  color: var(--muted);
  font-size: 0.72rem;
}

.tracking-details code {
  overflow: hidden;
  color: var(--ink);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.error-panel {
  margin-bottom: 16px;
  padding: 17px;
  border-color: rgba(255, 133, 133, 0.5);
  color: var(--danger);
  background: rgba(255, 133, 133, 0.07);
}

.error-panel p {
  margin: 4px 0 0;
  color: var(--muted);
}

.success-screen {
  max-width: 720px;
  min-height: 620px;
  margin: 0 auto;
  padding: 90px 20px;
  text-align: center;
}

.success-screen[hidden] {
  display: none;
}

.success-mark {
  width: 72px;
  height: 72px;
  margin: 0 auto 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--accent-ink);
  background: var(--accent);
  box-shadow: 0 0 48px rgba(105, 240, 209, 0.26);
  font-size: 2rem;
  font-weight: 700;
}

.success-screen > p:not(.eyebrow) {
  max-width: 560px;
  margin: 0 auto 22px;
  color: var(--muted);
}

.success-screen > p strong {
  color: var(--ink);
}

.success-event {
  width: fit-content;
  margin: 0 auto 28px;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid rgba(105, 240, 209, 0.34);
  border-radius: 8px;
  background: var(--accent-soft);
}

.success-event span {
  color: var(--muted);
  font: 600 0.66rem/1 "Chakra Petch", sans-serif;
}

.success-event code {
  color: var(--accent);
  font-size: 0.8rem;
}

footer {
  padding: 28px 0 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.78rem;
}

footer strong {
  color: var(--ink);
  font-family: "Chakra Petch", sans-serif;
}

footer p {
  margin: 0;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 960px) {
  .checkout-shell {
    grid-template-columns: 1fr;
  }

  .order-summary {
    position: static;
  }
}

@media (max-width: 700px) {
  .site-header,
  main,
  footer {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .lab-status {
    display: none;
  }

  .connection-bar {
    align-items: flex-start;
    flex-direction: column;
  }

  .connection-checks {
    justify-content: flex-start;
  }

  .step {
    min-height: 60px;
    justify-content: center;
  }

  .step div {
    display: none;
  }

  .step + .step {
    border-left: 1px solid var(--line);
  }

  .product-row {
    grid-template-columns: 104px minmax(0, 1fr);
  }

  .product-image-wrap {
    height: 96px;
  }

  .product-price {
    grid-column: 2;
  }

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

  .wide-field {
    grid-column: auto;
  }
}

@media (max-width: 480px) {
  main {
    padding-top: 18px;
  }

  .connection-source {
    width: 100%;
  }

  .connection-source div {
    min-width: 0;
  }

  .flow-arrow {
    margin-inline: auto;
  }

  .checkout-shell {
    padding-top: 27px;
  }

  .panel-card,
  .order-summary {
    padding: 17px;
  }

  .panel-heading > div {
    align-items: flex-start;
  }

  .readonly-label,
  .default-label {
    display: none;
  }

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

  .product-image-wrap {
    height: 190px;
  }

  .product-price {
    grid-column: auto;
  }

  .panel-actions {
    align-items: stretch;
    flex-direction: column-reverse;
  }

  .panel-actions.end {
    align-items: stretch;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .payment-option {
    align-items: flex-start;
  }

  .card-icon {
    display: none;
  }

  footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}