:root {
  --bg: #f7f9fb;
  --card: #ffffff;
  --text: #1f2a37;
  --muted: #5b6777;
  --accent: #1f6feb;
  --accent-dark: #1556b0;
  --border: #e3e7ee;
  --shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}
* { box-sizing: border-box; }
html, body { overflow-x: hidden; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
}
a { color: inherit; text-decoration: none; }
a:hover {
  text-decoration: underline;
  text-decoration-color: #95b5ec;
}

.container {
  width: min(1200px, 92%);
  margin: 0 auto;
}
.container.padded { padding: 40px 0; }
.layout-narrow .container { width: min(860px, 92%); }

.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.site-header .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: bold;
}
.brand img { width: 36px; height: 36px; }
.nav {
  display: flex;
  gap: 18px;
  font-size: 18px;
  color: var(--muted);
  flex-wrap: wrap;
}
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid #95b5ec;
  background: #ffffff;
  font-size: 22px;
  cursor: pointer;
}
@media (max-width: 1023px) {
  .site-header .row {
    flex-wrap: nowrap;
    position: relative;
  }
  .brand {
    flex: 1 1 auto;
  }
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
    order: 2;
  }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 12px;
    padding: 12px 0 6px;
    font-size: 16px;
    background: #ffffff;
    border-bottom: 1px solid var(--border);
  }
  .nav.is-open {
    display: flex;
  }
}
@media (max-width: 720px) {
  .site-header .row {
    padding: 10px 0;
  }
  .brand {
    min-width: 0;
  }
  .brand div {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 16px;
  }
  .brand img {
    width: 32px;
    height: 32px;
  }
  .nav-toggle {
    flex: 0 0 auto;
  }
}

.hero {
  background: linear-gradient(180deg, #ffffff 0%, #f3f6fb 100%);
  padding: 56px 0 28px;
}
.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  align-items: center;
}
@media (max-width: 1023px) {
  .hero-illustration { display: none; }
}
.hero h1 {
  font-size: 40px;
  margin: 0 0 12px;
}
.hero p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
  margin: 0 0 22px;
}
.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  font-weight: bold;
  font-size: 14px;
  color: var(--accent);
  background: #ffffff;
}
.btn:not(:disabled):hover { text-decoration: none; }
.btn:disabled,
.btn[disabled] {
  opacity: 0.6;
  box-shadow: none;
}
.btn:disabled:hover,
.btn[disabled]:hover {
  text-decoration: none;
}
.btn.primary:disabled,
.btn.primary[disabled] {
  background: #9fb8e6;
  border-color: #9fb8e6;
  color: #ffffff;
}
.btn.primary {
  background: var(--accent);
  color: #ffffff;
}
.btn.primary:not(:disabled):hover { background: var(--accent-dark); }
.btn.secondary {
  color: var(--accent);
  background: transparent;
}
.btn .version-tag {
  color: #9aa5b5;
  font-weight: normal;
}

section { padding: 40px 0; }
h2 {
  margin: 0 0 16px;
  font-size: 18px;
}
.section-lead {
  color: var(--muted);
  margin: 0 0 24px;
  line-height: 1.6;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.faq-grid {
  grid-template-columns: minmax(0, 1fr);
}
.faq-grid .card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.5;
}
.faq-grid .card p {
  margin: 0;
}
@media (max-width: 1023px) {
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 599px) {
  .grid-3 { grid-template-columns: minmax(0, 1fr); }
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  box-shadow: var(--shadow);
}
.card.card-lg {
  border-radius: 16px;
  padding: 24px;
  display: grid;
  gap: 18px;
}
.card.card-legal {
  border-radius: 16px;
  padding: 24px;
  display: grid;
  gap: 16px;
}
.card h3 { margin: 0 0 8px; }
.card h3 span {
  display: inline-block;
  background: #e8f0ff;
  color: var(--accent-dark);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: bold;
}
.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.step {
  padding: 18px;
  border-radius: 12px;
  background: #ffffff;
  border: 1px solid var(--border);
}
.step .num {
  display: inline-block;
  background: #e8f0ff;
  color: var(--accent-dark);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  margin-bottom: 10px;
}

.ui-stack { display: grid; gap: 20px; }
.ui-panel {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 16px;
}
.ui-media {
  border-radius: 12px;
  border: 1px solid #dbe7f6;
  background: #f5f9ff;
  padding: 14px;
  text-align: center;
  display: grid;
  gap: 10px;
  width: 55%;
  margin: 0 auto;
}
@media (max-width: 800px) {
  .ui-media { width: 100%; }
}
.ui-media img {
  display: block;
  width: 100%;
  height: auto;
}
.ui-title {
  font-weight: bold;
  font-size: 20px;
}
.ui-subtitle {
  color: #a0abbc;
  margin: 0;
  display: inline-block;
  padding-left: 12px;
  border-left: 2px solid #d9dfe9;
  font-size: 14px;
  font-weight: normal;
}
@media (max-width: 599px) {
  .ui-subtitle {
    display: block;
    margin-top: 6px;
    padding-left: 0;
    border-left: 0;
  }
}
.ui-content {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  align-items: start;
}
@media (max-width: 699px) {
  .ui-content { grid-template-columns: minmax(0, 1fr); }
}
.ui-content .section-lead { margin: 0; }
.ui-points {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 12px 14px;
  list-style: none;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #ffffff;
}
.ui-textbox {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #ffffff;
  padding: 12px 14px;
}
.ui-textbox .section-lead { margin-top: 10px; }
.ui-points li::before {
  content: "✓";
  color: var(--accent);
  margin-right: 8px;
  font-weight: bold;
}
.ui-details summary {
  cursor: pointer;
  font-weight: bold;
  color: var(--accent);
  list-style: none;
}
.ui-details summary::-webkit-details-marker { display: none; }
.ui-details summary::after {
  content: " ▾";
  color: var(--muted);
  font-weight: normal;
}
.ui-details[open] summary::after { content: " ▴"; }
.ui-details .section-lead { margin-top: 10px; }

.pill-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.pill {
  background: #eef2f7;
  color: #41516a;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
}

.cta {
  background: #eaf4ff;
  color: var(--text);
  border-radius: 16px;
  padding: 28px;
  display: grid;
  gap: 18px;
  text-align: center;
  justify-items: center;
}
.cta h2 { color: var(--text); margin: 0; }
.cta p { margin: 0; color: var(--muted); }
.cta .hero-actions { justify-content: center; }

.hashes {
  margin-top: 14px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
  word-break: break-all;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  max-width: 840px;
  margin: 0 auto;
}
.pricing-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 12px;
  position: relative;
}
.pricing-card .badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #eef2f7;
  color: #41516a;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  width: fit-content;
}
.pricing-card h3 {
  margin: 0;
  font-size: 20px;
}
.pricing-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}
.pricing-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.pricing-list li::before {
  content: "✓";
  color: var(--accent);
  margin-right: 8px;
  font-weight: bold;
}
.pricing-price {
  margin-top: 6px;
  font-weight: bold;
  font-size: 18px;
  color: var(--text);
  text-align: right;
}
.pricing-price span {
  display: inline-block;
  background: #f0f6ff;
  border: 1px solid #d6e7ff;
  color: #1f2a37;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 16px;
}
.pricing-card.paid {
  border-color: #cfe0f7;
  background: #f7fbff;
}
.hash-list {
  margin-top: 8px;
  display: grid;
  gap: 10px;
}
.hash-item {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #ffffff;
  text-align: left;
}
.hash-name {
  font-weight: 600;
  color: var(--text);
  font-size: 12px;
}
.hash-value {
  color: #8b96a7;
  font-size: 12px;
  margin-top: 4px;
  display: block;
}
.hash-value a {
  color: #8b96a7;
  text-decoration: underline;
}

.note {
  background: #eef4ff;
  border: 1px solid #d9e6ff;
  color: #3b4b63;
  padding: 12px 14px;
  border-radius: 12px;
}
.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.pay-form {
  display: grid;
  gap: 16px;
}
.field {
  display: grid;
  gap: 6px;
}
.field label {
  font-weight: bold;
  font-size: 14px;
}
.field input {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
}
.consent {
  display: flex;
  align-items: flex-start;
}
.consent-label {
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}
.consent-label input {
  margin-top: 2px;
}
.consent-label a {
  color: #1f6feb;
  text-decoration: none;
}
.list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.layout-narrow h1 {
  margin: 0;
  font-size: 20px;
}
.layout-narrow p,
.layout-narrow li {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}
.layout-narrow ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.back-link {
  color: var(--text);
  text-decoration: none;
  font-weight: bold;
}
.back-link:hover {
  text-decoration: none;
}

.site-footer {
  background: #ffffff;
  border-top: 1px solid var(--border);
  padding: 24px 0;
  margin-top: 32px;
  color: var(--muted);
  font-size: 13px;
}
.footer-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}
.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 14px;
  width: 100%;
  justify-content: center;
}
.footer-links a { color: var(--muted); }
.footer-contact {
  width: 100%;
  text-align: center;
}
.footer-contact .footer-icon {
  margin-right: 6px;
}

.cookie-banner {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  width: min(1200px, 92%);
  bottom: 16px;
  background: #ffffff;
  border: 1px solid #95b5ec;
  border-radius: 12px;
  padding: 14px 16px;
  box-shadow: var(--shadow);
  display: none;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  z-index: 50;
}
.layout-narrow .cookie-banner {
  width: min(860px, 92%);
}
.cookie-banner.show { display: flex; }
.cookie-text {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}
.cookie-text a {
  color: #1f6feb;
  text-decoration: none;
}
.cookie-btn {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #ffffff;
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  flex: 0 0 auto;
}
@media (max-width: 600px) {
  .cookie-banner {
    flex-direction: column;
    align-items: stretch;
  }
  .cookie-btn { width: 100%; }
}