:root {
  color-scheme: light;
  --bg: #f3f5f1;
  --panel: #ffffff;
  --ink: #15211b;
  --muted: #647067;
  --line: #dce3dd;
  --accent: #0d7f5f;
  --accent-dark: #095f48;
  --soft: #edf7f1;
  --warn: #b45f06;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(130deg, rgba(13, 127, 95, 0.12), transparent 42%),
    linear-gradient(230deg, rgba(244, 190, 88, 0.18), transparent 44%),
    var(--bg);
}

body.modal-open {
  overflow: hidden;
}

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

button,
input {
  font: inherit;
}

.pay-shell,
.admin-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0;
}

.payment-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.8fr);
  gap: 28px;
  align-items: stretch;
  min-height: 520px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 24px 80px rgba(41, 54, 45, 0.12);
}

.qr-only-panel {
  min-height: 0;
}

.payment-copy,
.qr-side {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin-bottom: 16px;
  font-size: clamp(34px, 5vw, 68px);
  line-height: 0.96;
  letter-spacing: 0;
}

.lead {
  max-width: 600px;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.5;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
  outline: none;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(13, 127, 95, 0.12);
}

.primary-button,
.ghost-button,
.download-button {
  position: relative;
  isolation: isolate;
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 800;
  line-height: 1;
  text-decoration: none;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease,
    background 160ms ease,
    color 160ms ease,
    opacity 160ms ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.primary-button::before,
.ghost-button::before,
.download-button::before {
  display: grid;
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 999px;
  font-size: 15px;
  line-height: 1;
  transition:
    transform 160ms ease,
    background 160ms ease,
    color 160ms ease;
}

.primary-button:hover,
.ghost-button:hover,
.download-button:hover {
  transform: translateY(-2px);
}

.primary-button:active,
.ghost-button:active,
.download-button:active,
.qr-frame:active {
  transform: translateY(0) scale(0.99);
}

.primary-button:focus-visible,
.ghost-button:focus-visible,
.download-button:focus-visible,
.qr-frame:focus-visible {
  outline: 0;
  box-shadow:
    0 0 0 4px rgba(255, 255, 255, 0.92),
    0 0 0 7px rgba(13, 127, 95, 0.32);
}

.primary-button {
  width: min(520px, 100%);
  margin-top: 18px;
  color: #fff;
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 255, 255, 0.24), transparent 28%),
    linear-gradient(135deg, #0f946f, #096b52);
  box-shadow:
    0 16px 32px rgba(9, 95, 72, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.24);
}

.primary-button::before {
  content: "✓";
  color: var(--accent-dark);
  background: rgba(255, 255, 255, 0.9);
}

.primary-button:hover {
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 255, 255, 0.28), transparent 30%),
    linear-gradient(135deg, #11a57d, #075c46);
  box-shadow:
    0 20px 42px rgba(9, 95, 72, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.28);
}

.primary-button:hover::before {
  transform: translateX(2px) scale(1.04);
}

.primary-button:disabled {
  cursor: wait;
  opacity: 0.7;
  transform: none;
  box-shadow: none;
}

.ghost-button {
  color: var(--accent-dark);
  border-color: rgba(13, 127, 95, 0.22);
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(135deg, rgba(13, 127, 95, 0.36), rgba(21, 33, 27, 0.12)) border-box;
  box-shadow: 0 10px 26px rgba(41, 54, 45, 0.1);
}

.ghost-button::before {
  content: "←";
  color: var(--accent-dark);
  background: var(--soft);
}

.ghost-button:hover {
  color: #063f30;
  border-color: rgba(13, 127, 95, 0.34);
  box-shadow: 0 14px 34px rgba(41, 54, 45, 0.15);
}

.ghost-button:hover::before {
  transform: translateX(-2px);
}

.download-button {
  color: #fff;
  background:
    radial-gradient(circle at 20% 18%, rgba(255, 255, 255, 0.18), transparent 26%),
    linear-gradient(135deg, #26362e, var(--ink));
  box-shadow:
    0 16px 34px rgba(21, 33, 27, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.download-button::before {
  content: "↓";
  color: #fff;
  background: rgba(255, 255, 255, 0.16);
}

.download-button:hover {
  background:
    radial-gradient(circle at 20% 18%, rgba(255, 255, 255, 0.22), transparent 28%),
    linear-gradient(135deg, #31463c, #0f1914);
  box-shadow:
    0 20px 42px rgba(21, 33, 27, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.download-button:hover::before {
  transform: translateY(2px);
}

.admin-header .ghost-button::before {
  content: "↗";
  transform: none;
}

.admin-header .ghost-button:hover::before {
  transform: translate(2px, -2px);
}

#qrClose::before {
  content: "×";
}

#qrClose:hover::before {
  transform: rotate(90deg);
}

.status {
  min-height: 24px;
  margin: 14px 0 0;
  color: var(--warn);
  font-weight: 700;
}

.inline-instruction {
  width: min(600px, 100%);
  margin-top: 24px;
  background: transparent;
}

.paid-action {
  display: flex;
  justify-content: center;
  padding: 22px 0 0;
}

.paid-action .primary-button {
  width: min(520px, 100%);
  min-height: 58px;
  margin-top: 0;
  font-size: 18px;
}

.confirm-panel {
  display: grid;
  gap: 22px;
  max-width: 720px;
  margin: 0 auto;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 24px 80px rgba(41, 54, 45, 0.12);
}

.confirm-panel h1 {
  margin-bottom: 12px;
}

.confirm-form {
  display: grid;
  gap: 16px;
}

.confirm-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
  align-items: center;
}

.confirm-actions .primary-button,
.confirm-actions .ghost-button {
  width: 100%;
  margin-top: 0;
}

.qr-side {
  align-items: center;
  padding: 24px;
  border-radius: 8px;
  background: var(--soft);
}

.qr-frame {
  position: relative;
  border: 1px solid var(--line);
  cursor: zoom-in;
  display: grid;
  width: min(100%, 380px);
  aspect-ratio: 1;
  place-items: center;
  padding: 18px;
  border-radius: 8px;
  background:
    linear-gradient(#fff, #fff) padding-box,
    linear-gradient(135deg, rgba(13, 127, 95, 0.34), rgba(244, 190, 88, 0.32)) border-box;
  box-shadow:
    0 18px 42px rgba(41, 54, 45, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);
  overflow: hidden;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.qr-frame::after {
  content: "Открыть";
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 1;
  display: inline-flex;
  min-height: 32px;
  align-items: center;
  padding: 0 12px;
  border: 1px solid rgba(13, 127, 95, 0.18);
  border-radius: 999px;
  color: var(--accent-dark);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 10px 24px rgba(41, 54, 45, 0.16);
  font-size: 13px;
  font-weight: 800;
  opacity: 0;
  transform: translateY(6px);
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.qr-frame:hover {
  border-color: rgba(13, 127, 95, 0.4);
  transform: translateY(-3px);
  box-shadow:
    0 24px 54px rgba(41, 54, 45, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.86);
}

.qr-frame:hover::after {
  opacity: 1;
  transform: translateY(0);
}

.qr-frame img,
.qr-admin img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.hint,
.muted {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.qr-side .download-button {
  width: min(100%, 380px);
  margin-top: 14px;
}

.qr-modal {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 18px;
  place-items: center;
  padding: 18px;
  background: #fff;
}

.qr-modal.hidden {
  display: none;
}

.qr-modal-actions {
  display: flex;
  width: min(100%, 520px);
  gap: 10px;
  justify-content: center;
}

.qr-modal-actions .download-button,
.qr-modal-actions .ghost-button {
  width: 100%;
}

.qr-modal img {
  width: min(92vw, 78vh);
  max-height: 78vh;
  aspect-ratio: 1;
  object-fit: contain;
}

.instruction,
.admin-card,
.metric {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
}

.instruction,
.admin-card {
  padding: 24px;
}

h2 {
  margin-bottom: 14px;
  font-size: 22px;
}

ol {
  margin: 0;
  padding-left: 20px;
  line-height: 1.75;
}

.admin-header {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
}

.admin-header h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 52px);
}

.admin-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.admin-row .primary-button {
  width: auto;
  margin: 0;
}

.hidden {
  display: none !important;
}

.dashboard {
  display: grid;
  gap: 18px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.metric {
  padding: 20px;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 40px;
}

.qr-admin {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 20px;
  align-items: center;
}

.qr-admin img {
  aspect-ratio: 1;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.settings-form {
  display: grid;
  gap: 14px;
}

.settings-form .primary-button {
  width: max-content;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th,
td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  white-space: nowrap;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

@media (max-width: 760px) {
  .pay-shell,
  .admin-shell {
    width: min(100% - 20px, 1120px);
    padding: 10px 0 22px;
  }

  .payment-panel,
  .stats-grid,
  .qr-admin,
  .admin-row {
    grid-template-columns: 1fr;
  }

  .payment-panel {
    min-height: 0;
    padding: 18px;
  }

  .confirm-panel {
    padding: 20px;
  }

  .confirm-actions {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 38px;
  }

  .lead {
    font-size: 16px;
  }

  .qr-side {
    padding: 16px;
  }

  .admin-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .admin-row .primary-button,
  .settings-form .primary-button {
    width: 100%;
  }
}