/* QT Payments – Quansatech
   Single stylesheet. No external fonts, no remote assets, no JavaScript. */

/* ---------------------------------------------------------- Design tokens */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --page: #f4f7fc;
  --surface: #ffffff;
  --surface-quiet: #f8fafb;
  --ink: #24305b;
  --ink-soft: #55616e;
  --ink-faint: #7b8794;
  --line: #dde3e9;
  --line-strong: #c6d0da;

  --accent: #104cba;
  --accent-hover: #0b3d98;
  --accent-ink: #ffffff;
  --accent-soft: #eaf1fd;

  --ok: #1c6b48;
  --ok-soft: #e8f3ed;
  --warn: #8a5300;
  --warn-soft: #fbf1e0;
  --error: #9e2323;
  --error-soft: #fbeceb;
  --info-soft: #eef2f6;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(23, 33, 44, .06), 0 6px 18px rgba(23, 33, 44, .05);

  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
}

/* ---------------------------------------------------------------- Base */

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

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

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
}

.payment-page {
  background-image: linear-gradient(rgba(244, 247, 252, .88), rgba(244, 247, 252, .96)), url("alpine-hero-800.webp");
  background-size: cover;
  background-position: center top;
  background-attachment: fixed;
}

h1,
h2,
h3 {
  margin: 0 0 var(--space-3);
  line-height: 1.25;
  letter-spacing: -.01em;
  font-weight: 650;
}

h1 {
  font-size: 1.5rem;
}

h2 {
  font-size: 1.125rem;
}

p {
  margin: 0 0 var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--accent);
  text-underline-offset: 2px;
}

a:hover {
  color: var(--accent-hover);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ------------------------------------------------------------- Utilities */

.transfer {
  display: grid;
  grid-template-columns: 216px minmax(0, 1fr);
  gap: 1.5rem;
  align-items: center;
  margin: 1.25rem 0;
}

.transfer__qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  color: var(--ink-soft);
  font-size: .8rem;
  font-weight: 600;
  text-align: center;
}

.transfer__qr img {
  display: block;
  width: 216px;
  height: 216px;
  max-width: 100%;
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.transfer__details { margin: 0; min-width: 0; }
.transfer__details div { padding: .5rem 0; border-bottom: 1px solid var(--line); }
.transfer__details dt { color: var(--ink-soft); font-size: .75rem; }
.transfer__details dd { margin: .1rem 0 0; overflow-wrap: anywhere; font-weight: 600; }

@media (max-width: 560px) {
  .transfer { grid-template-columns: 1fr; justify-items: center; gap: 1rem; }
  .transfer__details { width: 100%; }
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10;
  padding: var(--space-2) var(--space-4);
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
}

.muted {
  color: var(--ink-faint);
}

.shell {
  width: 100%;
  max-width: 64rem;
  margin: 0 auto;
  padding-inline: var(--space-4);
}

@media (min-width: 40rem) {
  .shell {
    padding-inline: var(--space-5);
  }
}

/* ---------------------------------------------------------------- Header */

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-block: var(--space-4);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand__logo {
  display: block;
  width: min(230px, 55vw);
  height: auto;
}

.brand__service {
  border-left: 1px solid var(--line-strong);
  padding-left: var(--space-3);
  color: var(--ink-soft);
  font-size: .875rem;
  white-space: nowrap;
}

/* ------------------------------------------------------------------ Main */

.site-main {
  flex: 1;
  padding-block: var(--space-6) var(--space-7);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.stack--narrow {
  max-width: 34rem;
  margin-inline: auto;
}

.stack--tight {
  max-width: 40rem;
  margin-inline: auto;
}

.flashes {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.page-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
}

.page-head__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.inline-form {
  display: inline;
}

.backlink {
  margin: 0;
  font-size: .9375rem;
}

/* ----------------------------------------------------------------- Cards */

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-5);
}

@media (min-width: 40rem) {
  .card {
    padding: var(--space-6);
  }
}

.card--quiet {
  background: var(--surface-quiet);
  box-shadow: none;
}

.card--invoice {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.card--invoice::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: url("alpine-hero-800.webp") center 38% / cover no-repeat;
  opacity: .045;
  pointer-events: none;
}

.card--accent {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.card--centered {
  text-align: center;
}

.card--table {
  padding: 0;
  overflow: hidden;
}

.card__actions {
  margin-top: var(--space-5);
  margin-bottom: 0;
}

.lede {
  color: var(--ink-soft);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-3);
  color: var(--ok);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.eyebrow__icon {
  flex: none;
}

.support-note {
  margin: 0;
  color: var(--ink-faint);
  font-size: .875rem;
  text-align: center;
}

/* --------------------------------------------------------------- Summary */

.summary {
  margin: 0 0 var(--space-5);
  border-top: 1px solid var(--line);
}

.summary__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--line);
}

.summary dt {
  color: var(--ink-soft);
  font-size: .9375rem;
}

.summary dd {
  margin: 0;
  font-weight: 550;
  text-align: right;
  overflow-wrap: anywhere;
}

.summary__value--mono {
  font-family: var(--font-mono);
  font-size: .9375rem;
}

.amount {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  background: var(--surface-quiet);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}

.card--quiet .amount {
  background: var(--surface);
}

.amount__label {
  color: var(--ink-soft);
  font-size: .9375rem;
}

.amount__value {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -.01em;
}

/* --------------------------------------------------------------- Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: .6875rem 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease;
}

.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.btn--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-ink);
}

.btn--secondary {
  background: var(--surface);
  border-color: var(--line-strong);
  color: var(--ink);
}

.btn--secondary:hover {
  background: var(--surface-quiet);
  border-color: var(--ink-faint);
  color: var(--ink);
}

.btn--block {
  width: 100%;
}

/* ----------------------------------------------------------------- Forms */

.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  margin-top: var(--space-5);
}

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.field__label {
  font-weight: 600;
  font-size: .9375rem;
}

.field__input {
  width: 100%;
  padding: .625rem .75rem;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  font: inherit;
  font-size: 1rem;
}

.field__input--mono {
  font-family: var(--font-mono);
  font-size: .9375rem;
}

.field__input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.field__input[readonly] {
  background: var(--surface-quiet);
  color: var(--ink-soft);
}

textarea.field__input {
  resize: vertical;
  min-height: 9rem;
}

.reminder-copy {
  margin-top: var(--space-5);
}

.field__input[aria-invalid="true"] {
  border-color: var(--error);
}

.hint {
  margin: 0;
  color: var(--ink-soft);
  font-size: .875rem;
}

.pay-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.payment-methods {
  margin-bottom: var(--space-2);
}

.payment-methods__label {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--ink-soft);
  font-size: .875rem;
}

.payment-methods__items {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.payment-methods__item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  min-width: 68px;
  padding: 3px 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.payment-methods__item img,
.stripe-badge img {
  display: block;
}

.stripe-badge {
  align-self: flex-start;
  margin-top: var(--space-2);
  line-height: 0;
}

/* -------------------------------------------------------- Notices, badges */

.notice {
  margin: 0;
  padding: var(--space-4);
  border: 1px solid var(--line);
  border-left-width: 4px;
  border-radius: var(--radius-sm);
  background: var(--info-soft);
  font-size: .9375rem;
}

.notice__title {
  margin: 0 0 var(--space-2);
  font-weight: 650;
}

.notice p:last-child {
  margin-bottom: 0;
}

.notice--ok {
  background: var(--ok-soft);
  border-left-color: var(--ok);
}

.notice--warn {
  background: var(--warn-soft);
  border-left-color: var(--warn);
}

.notice--error {
  background: var(--error-soft);
  border-left-color: var(--error);
}

.badge {
  display: inline-block;
  margin: 0;
  padding: .1875rem .5rem;
  border-radius: 999px;
  background: var(--info-soft);
  color: var(--ink-soft);
  font-size: .8125rem;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
}

.badge--ok {
  background: var(--ok-soft);
  color: var(--ok);
}

.badge--warn {
  background: var(--warn-soft);
  color: var(--warn);
}

.badge--admin {
  background: var(--accent-soft);
  color: var(--accent);
}

.status-line {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0;
  font-size: .9375rem;
}

.status-line__label {
  color: var(--ink-soft);
}

/* ----------------------------------------------------------------- Table */

.table-wrap {
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9375rem;
}

.table th,
.table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.table thead th {
  background: var(--surface-quiet);
  color: var(--ink-soft);
  font-size: .8125rem;
  font-weight: 650;
  letter-spacing: .02em;
  text-transform: uppercase;
  white-space: nowrap;
}

.table tbody tr:last-child th,
.table tbody tr:last-child td {
  border-bottom: 0;
}

.cell-strong {
  display: block;
  font-weight: 650;
}

.cell-sub {
  display: block;
  color: var(--ink-faint);
  font-family: var(--font-mono);
  font-size: .8125rem;
  font-weight: 400;
}

.cell-time {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.cell-error {
  display: block;
  max-width: 28rem;
  color: var(--error);
  overflow-wrap: anywhere;
}

.empty-state {
  padding: var(--space-6) var(--space-5);
  text-align: center;
  color: var(--ink-soft);
}

.empty-state__title {
  color: var(--ink);
  font-weight: 650;
}

@media (max-width: 47.99rem) {
  .table,
  .table tbody,
  .table tr,
  .table th,
  .table td {
    display: block;
  }

  .table thead {
    display: none;
  }

  .table tbody tr {
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--line);
  }

  .table tbody tr:last-child {
    border-bottom: 0;
  }

  .table th,
  .table td {
    padding: var(--space-1) var(--space-4);
    border-bottom: 0;
  }

  .table td[data-label]::before {
    content: attr(data-label);
    display: block;
    color: var(--ink-faint);
    font-size: .75rem;
    font-weight: 650;
    letter-spacing: .02em;
    text-transform: uppercase;
  }

  .table th[data-label] {
    padding-bottom: var(--space-2);
  }

  .cell-error {
    max-width: none;
  }
}

/* ---------------------------------------------------------------- Footer */

.site-footer {
  padding-block: var(--space-5);
  border-top: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-faint);
  font-size: .8125rem;
}

.site-footer p {
  margin: 0;
}

.site-footer__fineprint {
  margin-top: var(--space-2);
  max-width: 48rem;
}

.site-footer__links {
  margin-top: var(--space-2) !important;
}

.site-footer__credits {
  margin-top: var(--space-2) !important;
  font-size: .75rem;
}

/* ----------------------------------------------------------- Motion, print */

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}

@media print {
  body {
    background: #fff;
  }

  .site-header,
  .site-footer,
  .skip-link,
  .pay-form,
  .page-head__actions,
  .backlink {
    display: none;
  }

  .card {
    border-color: #999;
    box-shadow: none;
  }
}