:root {
  --bg: #0f1420;
  --card-bg: #171d2e;
  --accent: #4f8cff;
  --accent-hover: #6ba0ff;
  --text: #e8ecf5;
  --text-dim: #9aa4bd;
  --border: #2a3247;
  --error: #ff6b6b;
  --success: #3ddc84;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
}

.page {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 16px 40px;
}

.header {
  text-align: center;
  margin-bottom: 24px;
}

.logo {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--accent);
}

.tagline {
  color: var(--text-dim);
  margin-top: 4px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
}

h1 {
  font-size: 20px;
  margin: 0 0 16px;
  text-align: center;
}

.tariffs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.tariff-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.tariff-option:hover {
  border-color: var(--accent);
}

.tariff-option.selected {
  border-color: var(--accent);
  background: rgba(79, 140, 255, 0.08);
}

.tariff-name { font-weight: 600; }
.tariff-price { color: var(--accent); font-weight: 700; }

.field-label {
  display: block;
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0c1120;
  color: var(--text);
  font-size: 16px;
  margin-bottom: 16px;
}

.input:focus {
  outline: none;
  border-color: var(--accent);
}

.payment-methods {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.payment-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
}

.payment-option.selected {
  border-color: var(--accent);
  background: rgba(79, 140, 255, 0.08);
}

.turnstile-container {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 16px;
  cursor: pointer;
  background: rgba(255, 107, 107, 0.06);
}

.checkbox-row input[type="checkbox"] {
  margin-top: 2px;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--accent);
}

.checkbox-row span {
  font-size: 14px;
  line-height: 1.4;
  color: var(--text);
}

.btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s;
}

.btn:hover:not(:disabled) { background: var(--accent-hover); }

.btn:disabled {
  background: var(--border);
  color: var(--text-dim);
  cursor: not-allowed;
}

.hint {
  color: var(--text-dim);
  font-size: 14px;
  text-align: center;
  line-height: 1.5;
}

.error {
  color: var(--error);
  font-size: 14px;
  text-align: center;
  margin-top: 12px;
}

.hidden { display: none !important; }

.key-box {
  background: #0c1120;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 12px;
  word-break: break-all;
  font-family: monospace;
  font-size: 13px;
  max-height: 140px;
  overflow-y: auto;
}

.qr-wrap {
  display: flex;
  justify-content: center;
  margin: 20px 0;
}

.qr-wrap img {
  width: 220px;
  height: 220px;
  border-radius: 10px;
  background: #fff;
  padding: 8px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  margin: 0 auto 20px;
  animation: spin 0.8s linear infinite;
}

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

.footer {
  margin-top: 24px;
  text-align: center;
}

.prep-card {
  margin-top: 16px;
}

.prep-card h2 {
  font-size: 16px;
  margin: 0 0 12px;
  text-align: center;
}

.platform-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin: 12px 0;
}

.platform-links a {
  display: block;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  transition: border-color 0.15s;
}

.platform-links a:hover {
  border-color: var(--accent);
}

.qr-row {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-top: 12px;
}

.qr-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.qr-item img {
  width: 110px;
  height: 110px;
  background: #fff;
  border-radius: 8px;
  padding: 6px;
}

.qr-item span {
  font-size: 13px;
  color: var(--text-dim);
}

.install-steps {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.install-steps h3 {
  font-size: 16px;
  margin: 0 0 12px;
}

.install-steps h4 {
  font-size: 14px;
  margin: 16px 0 6px;
}

.install-steps ol,
.install-steps ul {
  margin: 6px 0;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.6;
}

.install-steps a {
  color: var(--accent);
}

.telegram-cta {
  margin-top: 20px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  text-align: center;
  background: rgba(79, 140, 255, 0.06);
}

.telegram-cta a {
  color: var(--accent);
  font-weight: 700;
  text-decoration: none;
}