:root {

  --bg: #080b12;

  --bg-soft: #0f1420;

  --surface: #141a26;

  --surface-2: #1a2233;

  --border: #2a3548;

  --text: #eef2f8;

  --text-dim: #8b97ab;

  --accent: #f472b6;

  --accent-soft: rgba(244, 114, 182, 0.14);

  --accent-glow: rgba(244, 114, 182, 0.35);

  --font: 'Segoe UI', system-ui, sans-serif;

  --font-display: Georgia, 'Times New Roman', serif;

  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);

}



* { box-sizing: border-box; }



body {

  margin: 0;

  font-family: var(--font);

  background: var(--bg);

  color: var(--text);

  line-height: 1.6;

}



body::before {

  content: '';

  position: fixed;

  inset: 0;

  pointer-events: none;

  background:

    radial-gradient(circle at 15% 10%, rgba(244, 114, 182, 0.12), transparent 28%),

    radial-gradient(circle at 85% 0%, rgba(96, 165, 250, 0.08), transparent 24%);

  z-index: -1;

}



a { color: var(--accent); text-decoration: none; }

a:hover { text-decoration: underline; }



.site-header {

  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 16px;

  padding: 16px 28px;

  border-bottom: 1px solid var(--border);

  background: rgba(8, 11, 18, 0.88);

  backdrop-filter: blur(10px);

  position: sticky;

  top: 0;

  z-index: 20;

}



.brand {

  display: inline-flex;

  align-items: center;

  gap: 12px;

  padding: 8px 16px 8px 10px;

  border-radius: 999px;

  background: rgba(20, 26, 38, 0.95);

  border: 1px solid rgba(244, 114, 182, 0.25);

  font-family: var(--font-display);

  font-weight: 700;

  letter-spacing: 0.08em;

  font-size: 22px;

  color: var(--text);

  text-decoration: none;

  transition: border-color 0.15s ease, box-shadow 0.15s ease;

}

.brand:hover {

  text-decoration: none;

  border-color: rgba(244, 114, 182, 0.55);

  box-shadow: 0 0 12px rgba(244, 114, 182, 0.15);

}

.brand-logo {

  width: 52px;

  height: 52px;

  border-radius: 12px;

  object-fit: contain;

  flex-shrink: 0;

  display: block;

  transform: scale(1.12);

  transform-origin: center center;

}

.brand-text {

  line-height: 1;

  padding-top: 2px;

  background: linear-gradient(135deg, #fbcfe8, var(--accent));

  -webkit-background-clip: text;

  background-clip: text;

  -webkit-text-fill-color: transparent;

}



.nav {

  display: flex;

  gap: 22px;

  font-size: 14px;

  flex-wrap: wrap;

}



.nav a {

  color: var(--text-dim);

  text-decoration: none;

}

.nav a:hover, .nav a.active { color: var(--accent); }



.header-actions {

  display: flex;

  gap: 10px;

  align-items: center;

}



.btn {

  display: inline-flex;

  align-items: center;

  justify-content: center;

  padding: 11px 22px;

  border-radius: 999px;

  font-size: 14px;

  font-weight: 600;

  border: none;

  cursor: pointer;

  text-decoration: none;

  transition: transform 0.15s ease, filter 0.15s ease, border-color 0.15s ease;

}



.btn:hover { text-decoration: none; transform: translateY(-1px); }



.btn-primary {

  background: linear-gradient(135deg, #f9a8d4, var(--accent));

  color: #1a0a14;

  box-shadow: 0 8px 24px var(--accent-glow);

}

.btn-primary:hover { filter: brightness(1.05); }



.btn-ghost {

  background: transparent;

  color: var(--text);

  border: 1px solid var(--border);

}

.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }



.btn-block { width: 100%; }



.hero {

  text-align: center;

  padding: 72px 24px 48px;

  max-width: 760px;

  margin: 0 auto;

}



.hero-kicker {

  display: inline-block;

  margin-bottom: 14px;

  padding: 6px 14px;

  border-radius: 999px;

  background: var(--accent-soft);

  color: #fbcfe8;

  font-size: 12px;

  letter-spacing: 0.08em;

}



.hero h1 {

  font-family: var(--font-display);

  font-size: clamp(34px, 6vw, 52px);

  margin: 0 0 16px;

  letter-spacing: 0.04em;

  line-height: 1.15;

}



.hero p {

  color: var(--text-dim);

  margin: 0 auto 30px;

  font-size: 16px;

  max-width: 560px;

}



.hero-actions {

  display: flex;

  gap: 12px;

  justify-content: center;

  flex-wrap: wrap;

}



.stats-row {

  display: grid;

  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));

  gap: 16px;

  max-width: 960px;

  margin: 0 auto 56px;

  padding: 0 24px;

}



.stat-card {

  background: rgba(20, 26, 38, 0.85);

  border: 1px solid var(--border);

  border-radius: 16px;

  padding: 20px;

  text-align: center;

}



.stat-card strong {

  display: block;

  font-size: 24px;

  margin-bottom: 4px;

  color: #fbcfe8;

}



.stat-card span {

  font-size: 13px;

  color: var(--text-dim);

}



.section {

  max-width: 1080px;

  margin: 0 auto;

  padding: 0 24px 56px;

}



.section-head {

  text-align: center;

  margin-bottom: 28px;

}



.section-head h2 {

  margin: 0 0 8px;

  font-size: 28px;

  font-family: var(--font-display);

}



.section-head p {

  margin: 0;

  color: var(--text-dim);

  font-size: 14px;

}



.features {

  display: grid;

  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));

  gap: 16px;

}



.feature-card {

  background: var(--surface);

  border: 1px solid var(--border);

  border-radius: 18px;

  padding: 22px;

  transition: border-color 0.2s ease, box-shadow 0.2s ease;

}



.feature-card:hover {

  border-color: rgba(244, 114, 182, 0.35);

  box-shadow: var(--shadow);

}



.feature-icon {

  width: 42px;

  height: 42px;

  border-radius: 12px;

  display: grid;

  place-items: center;

  margin-bottom: 14px;

  background: var(--accent-soft);

  color: #fbcfe8;

  font-size: 18px;

}



.feature-card h3 {

  margin: 0 0 8px;

  font-size: 15px;

}



.feature-card p {

  margin: 0;

  font-size: 13px;

  color: var(--text-dim);

}



.cta-band {

  max-width: 960px;

  margin: 0 auto 56px;

  padding: 28px 24px;

  border-radius: 22px;

  border: 1px solid rgba(244, 114, 182, 0.25);

  background: linear-gradient(135deg, rgba(244, 114, 182, 0.12), rgba(20, 26, 38, 0.92));

  text-align: center;

}



.cta-band h2 {

  margin: 0 0 8px;

  font-family: var(--font-display);

}



.cta-band p {

  margin: 0 0 18px;

  color: var(--text-dim);

}



.page-title {

  text-align: center;

  padding: 48px 24px 8px;

}



.page-title h1 {

  margin: 0 0 8px;

  font-size: 32px;

  font-family: var(--font-display);

}



.page-title p {

  margin: 0;

  color: var(--text-dim);

  font-size: 15px;

}



.cycle-tabs {

  display: flex;

  justify-content: center;

  gap: 10px;

  flex-wrap: wrap;

  margin: 24px auto 28px;

  padding: 0 24px;

}



.cycle-tab {

  padding: 10px 18px;

  border-radius: 999px;

  border: 1px solid var(--border);

  background: var(--surface);

  color: var(--text-dim);

  cursor: pointer;

  font-size: 13px;

}



.cycle-tab.active {

  background: var(--accent-soft);

  border-color: rgba(244, 114, 182, 0.45);

  color: #fbcfe8;

}



.plan-grid {

  display: grid;

  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));

  gap: 20px;

  max-width: 1080px;

  margin: 0 auto;

  padding: 0 24px 56px;

}



.plan-card {

  position: relative;

  background: var(--surface);

  border: 1px solid var(--border);

  border-radius: 20px;

  padding: 26px 22px;

  display: flex;

  flex-direction: column;

  min-height: 100%;

  box-shadow: var(--shadow);

}



.plan-card-featured {

  border-color: rgba(244, 114, 182, 0.55);

  transform: translateY(-4px);

}



.plan-badge {

  position: absolute;

  top: 16px;

  right: 16px;

  padding: 4px 10px;

  border-radius: 999px;

  background: var(--accent);

  color: #1a0a14;

  font-size: 11px;

  font-weight: 700;

}



.plan-card h3 {

  margin: 0 0 10px;

  font-size: 20px;

}



.plan-price {

  font-size: 34px;

  font-weight: 700;

  color: #fbcfe8;

  line-height: 1.1;

}



.plan-cycle-label {

  margin: 4px 0 16px;

  font-size: 12px;

  color: var(--text-dim);

}



.plan-features {

  margin: 0 0 18px;

  padding-left: 18px;

  flex: 1;

  color: var(--text-dim);

  font-size: 13px;

}



.plan-features li { margin-bottom: 8px; }



.plan-desc {

  margin: 0 0 16px;

  font-size: 12px;

  color: var(--text-dim);

}



.plans-empty {

  grid-column: 1 / -1;

  text-align: center;

  color: var(--text-dim);

  padding: 40px 0;

}



.platform-grid {

  display: grid;

  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));

  gap: 20px;

  max-width: 960px;

  margin: 0 auto;

  padding: 24px 24px 48px;

}



.platform-card {

  background: var(--surface);

  border: 1px solid var(--border);

  border-radius: 16px;

  padding: 24px;

  display: flex;

  flex-direction: column;

}



.platform-card h2 {

  margin: 0 0 4px;

  font-size: 18px;

}



.platform-req {

  font-size: 12px;

  color: var(--text-dim);

  margin: 0 0 16px;

}



.platform-card ul {

  margin: 0 0 20px;

  padding-left: 18px;

  font-size: 13px;

  color: var(--text-dim);

  flex: 1;

}



.platform-card li { margin-bottom: 6px; }



.platform-footer {

  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 12px;

  flex-wrap: wrap;

}



.platform-version {

  font-size: 12px;

  color: var(--text-dim);

}



.btn-download {

  padding: 10px 18px;

  font-size: 13px;

}



.btn-download.disabled {

  background: var(--surface-2);

  color: var(--text-dim);

  cursor: default;

  pointer-events: none;

  box-shadow: none;

}



.site-footer {

  text-align: center;

  padding: 28px 24px 40px;

  font-size: 12px;

  color: var(--text-dim);

  border-top: 1px solid var(--border);

}



.footer-links {

  display: flex;

  justify-content: center;

  gap: 18px;

  flex-wrap: wrap;

  margin-bottom: 10px;

}



.footer-links a {

  color: var(--text-dim);

  text-decoration: none;

}

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



.trust-bar {

  font-size: 13px;

  color: var(--text-dim);

  margin-bottom: 14px;

  padding: 0 16px;

}



.trust-bar a { color: var(--accent); }



.legal-doc {

  max-width: 720px;

  margin: 0 auto 48px;

  padding: 0 24px;

  color: var(--text-dim);

}



.legal-doc h2 {

  font-size: 18px;

  color: var(--text);

  margin: 28px 0 10px;

}



.legal-doc h2:first-child { margin-top: 0; }



.legal-doc p,

.legal-doc li {

  margin: 0 0 12px;

  line-height: 1.7;

}



.legal-doc ul,

.legal-doc ol {

  padding-left: 1.4em;

  margin: 0 0 16px;

}



@media (max-width: 720px) {

  .site-header {

    flex-wrap: wrap;

    justify-content: center;

  }



  .header-actions {

    width: 100%;

    justify-content: center;

  }



  .nav {

    justify-content: center;

  }

}




/* --- Knowledge center --- */
.knowledge-hero { padding-bottom: 24px; }
.knowledge-search-wrap { max-width: 480px; margin: 20px auto 0; }
.knowledge-search {
  width: 100%; padding: 12px 16px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text); font-size: 15px;
}
.knowledge-main { max-width: 820px; margin: 0 auto 48px; padding: 0 24px; }
.knowledge-category { margin-bottom: 32px; }
.knowledge-category-title { font-size: 20px; margin: 0 0 12px; color: var(--text); }
.knowledge-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.knowledge-item {
  width: 100%; text-align: left; padding: 14px 18px; border-radius: 12px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 12px;
  font: inherit; transition: border-color 0.15s, background 0.15s;
}
.knowledge-item:hover { border-color: var(--accent); background: var(--accent-soft); }
.knowledge-item-title { font-weight: 600; flex: 1; }
.knowledge-item-date { font-size: 13px; color: var(--text-dim); white-space: nowrap; }
.knowledge-breadcrumb { font-size: 14px; color: var(--text-dim); margin-bottom: 16px; }
.knowledge-breadcrumb a { color: var(--accent); }
.knowledge-breadcrumb span { margin: 0 6px; }
.knowledge-meta { font-size: 13px; color: var(--text-dim); margin: -8px 0 16px; }
.knowledge-article { max-width: 100%; }
.knowledge-body { color: var(--text-dim); line-height: 1.75; }
.knowledge-body img { max-width: 100%; height: auto; border-radius: 8px; margin: 12px 0; }
.knowledge-body h1, .knowledge-body h2, .knowledge-body h3 { color: var(--text); margin: 20px 0 10px; }
.knowledge-body p { margin: 0 0 12px; }
.knowledge-body ul, .knowledge-body ol { padding-left: 1.4em; margin: 0 0 12px; }
.knowledge-body a { color: var(--accent); }
.knowledge-body code, .knowledge-body pre {
  background: var(--surface-2); padding: 2px 6px; border-radius: 4px; font-size: 14px;
}
.knowledge-body pre { padding: 12px; overflow-x: auto; }

/* --- Support / contact --- */
.support-section {
  max-width: 960px;
  margin: 0 auto 32px;
  padding: 0 24px;
}

.support-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 32px;
}

.support-card {
  padding: 22px 20px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.support-card-featured {
  border-color: rgba(244, 114, 182, 0.45);
  background: linear-gradient(180deg, rgba(244, 114, 182, 0.12), var(--surface));
  box-shadow: 0 10px 30px rgba(244, 114, 182, 0.12);
}

.support-card h2 {
  margin: 0;
  font-size: 18px;
  color: var(--text);
}

.support-card p {
  margin: 0;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.65;
  flex: 1;
}

.support-card .btn {
  align-self: flex-start;
  margin-top: 4px;
}

.support-hours {
  text-align: center;
  color: var(--text-dim);
  font-size: 14px;
  margin: 0 0 28px;
}

@media (max-width: 860px) {
  .support-cards {
    grid-template-columns: 1fr;
  }
}

/* --- Auth / pay modals (pricing) --- */
.site-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(8, 10, 18, 0.72);
  backdrop-filter: blur(4px);
}

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

.site-modal-card {
  width: min(100%, 420px);
  max-height: min(90vh, 640px);
  overflow-y: auto;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  padding: 24px 22px 22px;
}

.site-modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.site-modal-head h2 {
  margin: 0;
  font-size: 20px;
}

.site-modal-close {
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 8px;
}

.site-modal-close:hover {
  color: var(--text);
  background: var(--surface-2);
}

.auth-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.auth-tab {
  flex: 1;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 14px;
  cursor: pointer;
}

.auth-tab.active {
  color: var(--text);
  border-color: rgba(244, 114, 182, 0.55);
  background: rgba(244, 114, 182, 0.12);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-dim);
}

.auth-form input {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 15px;
}

.auth-code-row {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}

.auth-code-row input {
  flex: 1;
}

.auth-error {
  min-height: 20px;
  margin: 0;
  font-size: 13px;
  color: #f87171;
}

.pay-modal-body {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pay-modal-summary {
  margin: 0;
  font-size: 15px;
  color: var(--text);
}

.pay-modal-trade {
  margin: 0;
  font-size: 12px;
  color: var(--text-dim);
  word-break: break-all;
}

.pay-modal-qr {
  width: 220px;
  height: 220px;
  margin: 0 auto;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #fff;
  padding: 8px;
}

.pay-modal-status {
  margin: 0;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.5;
}

.pay-modal-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 4px;
}

.checkout-success-banner {
  max-width: 720px;
  margin: 0 auto 32px;
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid rgba(52, 211, 153, 0.45);
  background: rgba(52, 211, 153, 0.12);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.checkout-success-banner.hidden {
  display: none;
}

.checkout-success-text {
  margin: 0;
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
}

.checkout-success-close {
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
  padding: 2px 6px;
}

.header-actions .hidden {
  display: none;
}