/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V5 */
/* Hallmark · genre: modern-minimal · macrostructure: Workbench · theme: Cobalt
 * enrichment: none · nav: N9 · footer: none · anchor hue: electric-cobalt
 * audience: mobile invoice applicants · tone: concise, transactional
 * contrast: pass (40–41) · slop: pass (1–58) · mobile: pass (34, 49–57)
 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  overflow-x: clip;
}

html {
  background: var(--color-paper-2);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 100%;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

body {
  min-width: 0;
  min-height: 100dvh;
  margin: 0;
  background: var(--color-paper-2);
  color: var(--color-ink);
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

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

h1,
h2,
p {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
}

h1,
h2 {
  font-style: normal;
}

.sr-only {
  position: absolute;
  width: var(--rule-thin);
  height: var(--rule-thin);
  padding: 0;
  margin: calc(var(--rule-thin) * -1);
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.topbar {
  min-height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-inline:
    max(var(--space-md), env(safe-area-inset-left))
    max(var(--space-md), env(safe-area-inset-right));
  border-bottom: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper);
  color: var(--color-ink);
}

.wordmark {
  display: block;
  width: 100%;
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.45;
  text-align: center;
  white-space: normal;
}

.page-shell {
  width: min(100%, 31rem);
  margin-inline: auto;
  padding:
    var(--space-xs)
    max(var(--space-md), env(safe-area-inset-right))
    max(var(--space-md), env(safe-area-inset-bottom))
    max(var(--space-md), env(safe-area-inset-left));
}

.invoice-form {
  position: relative;
  display: grid;
  padding-inline: var(--space-sm);
  border: var(--rule-thin) solid var(--color-rule);
  border-radius: var(--radius-lg);
  background: var(--color-paper);
  color: var(--color-ink);
}

.site-footer {
  width: min(100%, 31rem);
  margin-inline: auto;
  padding:
    0
    max(var(--space-md), env(safe-area-inset-right))
    max(var(--space-sm), env(safe-area-inset-bottom))
    max(var(--space-md), env(safe-area-inset-left));
  color: var(--color-muted);
  font-size: var(--text-xs);
  line-height: 1.6;
  text-align: center;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: inherit;
  text-underline-offset: 0.18em;
}

.form-section {
  display: grid;
  gap: var(--space-xs);
  padding-block: var(--space-sm);
  border-bottom: var(--rule-thin) solid var(--color-rule);
}

.amount-section h1 {
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.25;
}

.amount-input-wrap {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: var(--space-sm);
  border-bottom: var(--rule-thin) solid var(--color-rule-strong);
}

.amount-input-wrap > span {
  color: var(--color-ink-2);
  font-family: var(--font-mono);
  font-size: var(--text-xl);
}

.amount-input-wrap input {
  width: 100%;
  min-width: 0;
  height: 2.75rem;
  padding: 0;
  border: 0;
  outline: var(--rule-focus) solid transparent;
  outline-offset: var(--space-3xs);
  background: transparent;
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-display);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.amount-input-wrap:focus-within {
  border-color: var(--color-accent);
}

.amount-input-wrap input:focus-visible {
  outline-color: var(--color-focus);
}

.company-section {
  gap: var(--space-sm);
}

.field-group,
.receiver-section {
  display: grid;
  gap: var(--space-2xs);
}

.field-group label,
.receiver-section > label {
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  font-weight: 500;
}

.field-group input,
.receiver-section > input {
  width: 100%;
  height: 2.75rem;
  padding-inline: var(--space-sm);
  border: var(--rule-thin) solid var(--color-rule-strong);
  border-radius: var(--radius-sm);
  outline: var(--rule-focus) solid transparent;
  outline-offset: var(--space-3xs);
  background: var(--color-paper);
  color: var(--color-ink);
}

input::placeholder {
  color: var(--color-muted);
  opacity: 1;
}

.field-group input:focus-visible,
.receiver-section > input:focus-visible {
  border-color: var(--color-accent);
  outline-color: var(--color-focus);
}

input:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  background: var(--color-paper-2);
}

.field-group input[aria-invalid="true"],
.receiver-section > input[aria-invalid="true"] {
  border-color: var(--color-error);
  background: var(--color-error-soft);
  color: var(--color-ink);
}

.amount-input-wrap input[aria-invalid="true"] {
  color: var(--color-error);
}

.field-help {
  min-height: 1lh;
  color: var(--color-muted);
  font-size: var(--text-xs);
  line-height: 1.35;
}

.field-help strong {
  color: var(--color-ink-2);
  font-family: var(--font-mono);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.is-error {
  color: var(--color-error);
}

.item-section {
  gap: var(--space-2xs);
}

.chip-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-xs);
  min-width: 0;
  padding: 0;
  border: 0;
}

.choice-chip {
  position: relative;
  min-width: 0;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.choice-chip input {
  position: absolute;
  z-index: var(--z-base);
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.choice-chip span {
  width: 100%;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-inline: var(--space-2xs);
  border: var(--rule-thin) solid var(--color-rule-strong);
  border-radius: var(--radius-sm);
  outline: var(--rule-focus) solid transparent;
  outline-offset: var(--space-3xs);
  background: var(--color-paper);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
  white-space: nowrap;
  pointer-events: none;
}

.choice-chip input:checked + span {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

.choice-chip input:focus-visible + span {
  outline-color: var(--color-focus);
}

.choice-chip input:active + span {
  background: var(--color-paper-3);
}

.choice-chip input:disabled {
  cursor: not-allowed;
}

.choice-chip input:disabled + span {
  opacity: 0.55;
  cursor: not-allowed;
  background: var(--color-paper-2);
}

.chip-group[aria-invalid="true"] .choice-chip span {
  border-color: var(--color-error);
}

.submission-trap {
  position: absolute;
  inset-inline-start: -10000px;
  width: var(--rule-thin);
  height: var(--rule-thin);
  overflow: hidden;
}

.payment-actions {
  display: grid;
  gap: var(--space-xs);
  padding-block: var(--space-sm);
}

.payment-actions__row {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: var(--space-xs);
}

.form-error {
  padding: var(--space-xs) var(--space-sm);
  border: var(--rule-thin) solid var(--color-error);
  border-radius: var(--radius-sm);
  background: var(--color-error-soft);
  color: var(--color-error);
  font-size: var(--text-xs);
}

.pay-button,
.dialog-action,
.icon-button {
  min-height: 2.75rem;
  border: var(--rule-thin) solid transparent;
  border-radius: var(--radius-sm);
  outline: var(--rule-focus) solid transparent;
  outline-offset: var(--space-3xs);
  font-size: var(--text-sm);
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color var(--dur-short) var(--ease-out),
    color var(--dur-short) var(--ease-out),
    transform var(--dur-micro) var(--ease-out);
}

.pay-button--secondary {
  border-color: var(--color-rule-strong);
  background: var(--color-paper);
  color: var(--color-ink);
}

.pay-button--tertiary {
  border-color: var(--color-rule-strong);
  background: var(--color-paper-2);
  color: var(--color-ink);
}

.pay-button--primary,
.dialog-action {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.pay-button:focus-visible,
.dialog-action:focus-visible,
.icon-button:focus-visible {
  outline-color: var(--color-focus);
}

.pay-button:active,
.dialog-action:active,
.icon-button:active {
  transform: translateY(var(--rule-thin));
}

.pay-button:disabled,
.dialog-action:disabled,
.icon-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.pay-button[data-state="loading"] {
  cursor: wait;
}

.payment-dialog,
.success-dialog {
  position: fixed;
  inset: 0;
  width: min(calc(100% - 2rem), 25rem);
  height: fit-content;
  max-height: min(88dvh, 42rem);
  margin: auto;
  padding: var(--space-lg);
  overflow: auto;
  border: var(--rule-thin) solid var(--color-rule-strong);
  border-radius: var(--radius-lg);
  background: var(--color-paper);
  color: var(--color-ink);
  opacity: 0;
  transform: translateY(var(--space-xs)) scale(0.98);
  transition:
    opacity var(--dur-long) var(--ease-out),
    transform var(--dur-long) var(--ease-out);
}

.payment-dialog[open],
.success-dialog[open] {
  opacity: 1;
  transform: none;
}

.payment-dialog::backdrop,
.success-dialog::backdrop {
  background: var(--color-overlay);
}

.dialog-head {
  position: relative;
  min-height: 2.75rem;
}

.dialog-head > div {
  width: 100%;
  padding-inline: 3.25rem;
  text-align: center;
}

.dialog-head p {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.dialog-head h2,
.success-dialog h2 {
  margin-top: var(--space-2xs);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  line-height: 1.25;
}

.dialog-head h2:focus,
.success-dialog h2:focus {
  outline: none;
}

.icon-button {
  position: absolute;
  inset-block-start: 0;
  inset-inline-end: 0;
  width: 2.75rem;
  min-width: 2.75rem;
  min-height: 2.75rem;
  padding: 0;
  border-color: var(--color-rule);
  background: var(--color-paper);
  color: var(--color-ink);
  font-size: var(--text-lg);
  font-weight: 400;
}

.qr-wrap {
  width: min(70vw, 13.5rem);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  margin: var(--space-lg) auto var(--space-sm);
  padding: var(--space-sm);
  border: var(--rule-thin) solid var(--color-rule);
  background: var(--color-paper);
  color: var(--color-ink);
}

.qr-wrap img {
  width: 100%;
  height: 100%;
  display: block;
}

.payment-status {
  min-height: 1.5lh;
  color: var(--color-muted);
  font-size: var(--text-sm);
  text-align: center;
}

.payment-status.is-error {
  color: var(--color-error);
}

.success-dialog {
  text-align: center;
}

.success-mark {
  width: 3.5rem;
  height: 3.5rem;
  display: grid;
  place-items: center;
  margin-inline: auto;
  border-radius: var(--radius-round);
  background: var(--color-success-soft);
  color: var(--color-success);
  font-family: var(--font-mono);
  font-size: var(--text-xl);
}

.success-dialog > p {
  margin-top: var(--space-sm);
  color: var(--color-ink-2);
  font-size: var(--text-sm);
}

.submission-id {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.dialog-action {
  width: 100%;
  margin-top: var(--space-lg);
}

@media (hover: hover) and (pointer: fine) {
  .field-group input:hover,
  .receiver-section > input:hover,
  .choice-chip:hover span {
    background: var(--color-paper-2);
  }

  .pay-button:hover,
  .dialog-action:hover {
    transform: translateY(calc(var(--rule-thin) * -1));
  }

  .pay-button--primary:hover,
  .dialog-action:hover {
    background: var(--color-accent-dark);
  }

  .icon-button:hover {
    background: var(--color-paper-2);
  }
}

@media (min-width: 40rem) {
  .topbar {
    padding-inline: var(--space-xl);
  }

  .payment-actions__row {
    grid-template-columns: 10.5rem minmax(0, 1fr);
  }
}

@media (max-width: 21rem) {
  .pay-button,
  .choice-chip span {
    font-size: var(--text-xs);
  }
}

@media (pointer: coarse) {
  .pay-button,
  .dialog-action,
  .field-group input,
  .receiver-section > input {
    min-height: 2.75rem;
  }
}

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

  .payment-dialog,
  .success-dialog,
  .pay-button,
  .dialog-action,
  .icon-button {
    transform: none;
  }
}