:root {
  --bg: #262324;
  --panel: #343132;
  --panel-2: #484546;
  --text: #f4f2f2;
  --muted: #7f7979;
  --muted-2: #928c8c;
  --card-bg: #eceaea;
  --accent: #97c11f;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.2);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

body {
  min-height: 100vh;
}

.page {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.page::before,
.page::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.page::before {
  background:
    radial-gradient(circle at 22% 58%, rgba(255, 255, 255, 0.02), transparent 22%),
    radial-gradient(circle at 82% 31%, rgba(255, 255, 255, 0.018), transparent 24%);
}

.page::after {
  background:
    linear-gradient(90deg, transparent 0, rgba(255, 255, 255, 0.012) 50%, transparent 100%);
  opacity: 0.25;
}

.screen {
  display: none;
  min-height: 100vh;
  padding: 60px 20px;
}

.screen-active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.screen-inner {
  width: 100%;
  max-width: 560px;
  text-align: center;
}

.screen-inner-compact {
  max-width: 520px;
}

.screen-inner-wide {
  max-width: 1180px;
}

h1 {
  margin: 0;
  font-size: clamp(32px, 4vw, 55px);
  line-height: 1.1;
  font-weight: 800;
}

h2 {
  margin: 26px 0 28px;
  font-size: clamp(18px, 2vw, 28px);
  font-weight: 700;
}

.order-id,
.request-line,
.payment-lead {
  color: var(--muted);
}

.order-id {
  margin: 18px 0 0;
  font-size: 18px;
}

.payment-lead {
  margin: 32px 0 26px;
  font-size: 18px;
  font-weight: 700;
}

.payment-lead strong {
  color: var(--text);
}

.payment-desc {
  margin: -6px 0 22px;
  color: #969090;
  font-size: 16px;
}

.order-badge {
  position: absolute;
  top: 22px;
  right: 180px;
  padding: 10px 18px;
  background: rgba(255, 255, 255, 0.06);
  color: #f7f6f6;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.back-button {
  position: absolute;
  left: 28px;
  top: 50%;
  transform: translateY(-50%);
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
}

.back-button span {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-left: 2px solid #bbb5b5;
  border-bottom: 2px solid #bbb5b5;
  transform: rotate(45deg);
  margin-left: 4px;
}

.bank-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(170px, 1fr));
  gap: 40px 38px;
  justify-items: center;
}

.bank-card {
  width: 100%;
  max-width: 205px;
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

.bank-card-top {
  min-height: 138px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 18px;
}

.bank-name {
  font-size: 19px;
  font-weight: 400;
}

.select-button {
  width: 100%;
  height: 50px;
  border: 0;
  background: var(--panel-2);
  color: #fff;
  font-size: 19px;
  font-weight: 700;
  cursor: pointer;
}

.bank-logo {
  position: relative;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
}

.bank-logo-large {
  width: 54px;
  height: 54px;
}

.bank-logo-image {
  display: flex;
  align-items: center;
  justify-content: center;
}

.bank-logo-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.bank-logo-sber {
  border-radius: 50%;
  background: linear-gradient(135deg, #31c0f1 0 38%, #c1e324 72%, #8bd32c 100%);
}

.bank-logo-sber::before {
  content: "";
  position: absolute;
  inset: 5px;
  background: var(--card-bg);
  border-radius: 50%;
}

.bank-logo-sber::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 10px;
  width: 17px;
  height: 10px;
  border-left: 4px solid #1cb663;
  border-bottom: 4px solid #1cb663;
  transform: rotate(-45deg);
}

.bank-logo-vtb {
  width: 48px;
  height: 27px;
  border-radius: 2px;
  background: linear-gradient(180deg, #4d7dd4, #2757a1);
}

.bank-logo-vtb::before,
.bank-logo-vtb::after {
  content: "";
  position: absolute;
  background: #d8e4ff;
}

.bank-logo-vtb::before {
  left: 8px;
  top: 6px;
  width: 24px;
  height: 4px;
  box-shadow: 0 7px 0 #d8e4ff, 0 14px 0 #d8e4ff;
}

.bank-logo-vtb::after {
  right: 8px;
  top: 6px;
  width: 10px;
  height: 18px;
  transform: skewX(-22deg);
}

.bank-logo-alfa {
  width: 32px;
  height: 32px;
  background: #ef2d2e;
}

.bank-logo-alfa::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 6px;
  width: 8px;
  height: 18px;
  border-left: 2px solid #fff;
  border-right: 2px solid #fff;
}

.bank-logo-alfa::after {
  content: "";
  position: absolute;
  left: 8px;
  bottom: 7px;
  width: 16px;
  height: 2px;
  background: #fff;
}

.bank-logo-tinkoff {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background:
    radial-gradient(circle, #fcfbf1 0 36%, transparent 38%),
    conic-gradient(from 0deg, #fff8cf, #b9b07d, #fff8cf, #a59b6b, #fff8cf);
}

.bank-logo-gazprom {
  width: 42px;
  height: 42px;
}

.bank-logo-gazprom::before,
.bank-logo-gazprom::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
}

.bank-logo-gazprom::before {
  background: repeating-linear-gradient(165deg, #8792d0 0 3px, transparent 3px 6px);
}

.bank-logo-gazprom::after {
  inset: 8px 2px 8px 2px;
  border-top: 3px solid #c9d0ef;
  border-radius: 50%;
}

.bank-logo-otkritie {
  border-radius: 50%;
  background: #3ec6dc;
}

.bank-logo-otkritie::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 4px solid rgba(255, 255, 255, 0.85);
  border-radius: 50%;
}

.bank-logo-raif {
  background: #fbeb28;
}

.bank-logo-raif::before,
.bank-logo-raif::after {
  content: "";
  position: absolute;
  background: #111;
}

.bank-logo-raif::before {
  width: 7px;
  height: 32px;
  left: 16px;
  top: 4px;
  transform: rotate(45deg);
}

.bank-logo-raif::after {
  width: 7px;
  height: 32px;
  left: 16px;
  top: 4px;
  transform: rotate(-45deg);
}

.bank-logo-other {
  width: 48px;
  height: 28px;
  background:
    radial-gradient(circle at 15% 50%, #ef2f2f 0 22%, transparent 24%),
    radial-gradient(circle at 34% 50%, #ff9a23 0 22%, transparent 24%),
    linear-gradient(90deg, #2651a8 0 34%, transparent 34% 67%, #1bbfb6 67% 100%);
  border-radius: 18px;
}

.payment-card {
  margin: 0 auto;
  width: min(430px, 100%);
  background: var(--card-bg);
  color: #333;
  border-radius: 6px;
  box-shadow: var(--shadow);
  padding: 20px 22px 22px;
  text-align: left;
}

.payment-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.payment-bank {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 28px;
  font-weight: 400;
}

.chip {
  width: 38px;
  height: 28px;
  border-radius: 4px;
  background:
    linear-gradient(90deg, transparent 0 47%, #bdb7b1 47% 53%, transparent 53% 100%),
    linear-gradient(transparent 0 48%, #bdb7b1 48% 52%, transparent 52% 100%),
    #dbd6d0;
  border: 1px solid #b9b2ac;
}

.payment-card-body {
  margin-top: 28px;
}

.payment-label {
  font-size: 19px;
  font-weight: 700;
  color: #726d6d;
}

.payment-label-spaced {
  margin-top: 8px;
}

.copy-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 6px;
  font-size: 23px;
  font-weight: 700;
  color: #393636;
}

.copy-button {
  position: relative;
  width: 22px;
  height: 22px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.copy-button::before,
.copy-button::after {
  content: "";
  position: absolute;
  border: 2px solid #8f8a8a;
  border-radius: 3px;
}

.copy-button::before {
  width: 12px;
  height: 12px;
  top: 5px;
  left: 6px;
}

.copy-button::after {
  width: 12px;
  height: 12px;
  top: 2px;
  left: 2px;
  background: var(--card-bg);
}

.copy-button.copied::before,
.copy-button.copied::after {
  border-color: #1cb663;
}

.timer-block {
  margin-top: 36px;
  text-align: center;
}

.timer-line {
  font-size: 19px;
  color: #7f7a7a;
  font-weight: 700;
}

.timer-line strong {
  margin-left: 10px;
  color: #ece6e6;
}

.request-line {
  margin-top: 14px;
  font-size: 18px;
}

.paid-button {
  margin-top: 42px;
  width: min(400px, 100%);
  height: 52px;
  border: 0;
  border-radius: 4px;
  background: var(--accent);
  color: #232323;
  font-size: 21px;
  font-weight: 700;
  cursor: pointer;
}

.instruction-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  border: 0;
  background: transparent;
  color: #f4f2f2;
  font-size: 17px;
  font-weight: 700;
  cursor: pointer;
}

.chevron {
  width: 7px;
  height: 7px;
  border-right: 2px solid #ddd;
  border-bottom: 2px solid #ddd;
  transform: rotate(-135deg);
  transition: transform 0.2s ease;
}

.instruction-toggle.open .chevron {
  transform: rotate(45deg);
}

.instructions {
  width: min(400px, 100%);
  margin: 18px auto 0;
  text-align: left;
  color: #c2bbbb;
  font-size: 15px;
  line-height: 1.5;
}

.loading-block {
  margin-top: 36px;
}

.spinner {
  width: 62px;
  height: 62px;
  margin: 0 auto 20px;
  border: 4px solid rgba(255, 255, 255, 0.12);
  border-top-color: #97c11f;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loading-title {
  margin: 0;
  font-size: 30px;
  font-weight: 700;
}

.loading-subtitle {
  margin: 12px auto 0;
  max-width: 420px;
  color: #999393;
  font-size: 17px;
  line-height: 1.5;
}

.hidden {
  display: none;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 1200px) {
  .order-badge {
    right: 40px;
  }

  .bank-grid {
    grid-template-columns: repeat(3, minmax(170px, 1fr));
  }
}

@media (max-width: 820px) {
  .screen {
    padding: 72px 16px 44px;
  }

  .screen-inner-wide {
    max-width: 760px;
  }

  .bank-grid {
    grid-template-columns: repeat(2, minmax(148px, 1fr));
    gap: 22px;
  }

  .bank-card {
    max-width: none;
  }

  .back-button {
    top: 28px;
    left: 18px;
    transform: none;
  }

  .order-badge {
    top: 20px;
    right: 16px;
    font-size: 16px;
    padding: 8px 12px;
  }

  .payment-bank {
    font-size: 21px;
  }

  .copy-row {
    font-size: 18px;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 30px;
  }

  h2,
  .payment-lead {
    font-size: 17px;
  }

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

  .paid-button {
    font-size: 18px;
  }
}