:root {
  --sb-bg: #050816;
  --sb-bg-alt: #090f1f;
  --sb-surface: #0f172a;
  --sb-border: rgba(148, 163, 184, 0.35);
  --sb-primary: #38bdf8;
  --sb-primary-soft: rgba(56, 189, 248, 0.12);
  --sb-primary-strong: rgba(56, 189, 248, 0.25);
  --sb-accent: #a855f7;
  --sb-text: #e5e7eb;
  --sb-text-soft: #9ca3af;
  --sb-radius-lg: 18px;
  --sb-radius-xl: 26px;
  --sb-shadow-soft: 0 18px 60px rgba(15, 23, 42, 0.85);
  --sb-shadow-subtle: 0 10px 30px rgba(15, 23, 42, 0.65);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Public Sans", system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #0b1120 0, #020617 52%, #000 100%);
  color: var(--sb-text);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.sb-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.sb-container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.sb-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.85), transparent);
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.sb-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.sb-header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sb-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.sb-logo-image {
  height: 40px;
  width: auto;
  display: block;
}

.sb-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
}

.sb-lang {
  display: inline-flex;
}

.sb-lang-select {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.5);
  color: var(--sb-text);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 13px;
  min-width: 140px;
  cursor: pointer;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.sb-lang-select:hover,
.sb-lang-select:focus {
  border-color: rgba(56, 189, 248, 0.8);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.35);
  outline: none;
  background: rgba(15, 23, 42, 1);
}

.sb-nav-link {
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--sb-text-soft);
  border: 1px solid transparent;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.1s ease;
}

.sb-nav-link:hover {
  background: rgba(15, 23, 42, 0.8);
  border-color: rgba(148, 163, 184, 0.4);
  color: var(--sb-text);
  transform: translateY(-1px);
}

.sb-nav-link-active {
  background: var(--sb-primary-soft);
  border-color: var(--sb-primary-strong);
  color: #e0f2fe;
}

.sb-hero {
  padding: 60px 0 48px;
}

.sb-hero-compact {
  padding-top: 44px;
  padding-bottom: 24px;
}

.sb-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 28px;
  align-items: stretch;
}

.sb-hero-text h1 {
  font-size: clamp(26px, 4vw, 34px);
  line-height: 1.1;
  margin: 0 0 14px;
}

.sb-hero-text p {
  margin: 0;
  color: var(--sb-text-soft);
  font-size: 15px;
}

.sb-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 12px;
}

.sb-hero-meta {
  margin-top: 10px;
  font-size: 13px;
  color: var(--sb-text-soft);
}

.sb-hero-meta a {
  color: #7dd3fc;
  text-decoration: underline;
  text-decoration-style: dotted;
}

.sb-hero-card {
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), transparent 45%), rgba(15, 23, 42, 0.98);
  border-radius: var(--sb-radius-xl);
  padding: 22px 22px 20px;
  box-shadow: var(--sb-shadow-soft);
  border: 1px solid var(--sb-border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sb-hero-card h2 {
  margin: 0;
  font-size: 18px;
}

.sb-hero-card p {
  margin: 0;
  color: var(--sb-text-soft);
  font-size: 14px;
}

.sb-list {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
}

.sb-list li {
  position: relative;
  padding-left: 18px;
  color: var(--sb-text-soft);
  font-size: 14px;
  margin-bottom: 6px;
}

.sb-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: radial-gradient(circle, #38bdf8, #0ea5e9);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.6);
}

.sb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease, transform 0.08s ease;
}

.sb-btn-primary {
  background: linear-gradient(to right, #0ea5e9, #38bdf8);
  color: #0b1120;
  box-shadow: 0 14px 35px rgba(56, 189, 248, 0.55);
}

.sb-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(56, 189, 248, 0.7);
}

.sb-btn-secondary {
  background: rgba(15, 23, 42, 0.9);
  border-color: rgba(148, 163, 184, 0.55);
  color: var(--sb-text);
  box-shadow: var(--sb-shadow-subtle);
}

.sb-btn-secondary:hover {
  background: rgba(15, 23, 42, 1);
  border-color: rgba(148, 163, 184, 0.85);
  transform: translateY(-1px);
}

.sb-btn-ghost {
  background: rgba(15, 23, 42, 0.85);
  border-color: rgba(148, 163, 184, 0.5);
  color: var(--sb-text-soft);
}

.sb-btn-ghost:hover {
  color: var(--sb-text);
  background: rgba(15, 23, 42, 1);
  border-color: rgba(148, 163, 184, 0.9);
}

.sb-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: #7dd3fc;
  margin-top: 6px;
}

.sb-link-arrow::after {
  content: "→";
  font-size: 13px;
}

.sb-section {
  padding: 16px 0 40px;
}

.sb-section-alt {
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.94), rgba(15, 23, 42, 0.98));
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  border-bottom: 1px solid rgba(148, 163, 184, 0.3);
}

.sb-section-header {
  margin-bottom: 20px;
}

.sb-section-header h2 {
  margin: 0 0 6px;
  font-size: 20px;
}

.sb-section-header p {
  margin: 0;
  font-size: 14px;
  color: var(--sb-text-soft);
}

.sb-grid {
  display: grid;
  gap: 20px;
}

.sb-grid-brands {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.sb-grid-2col {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
}

.sb-brand-card {
  background: radial-gradient(circle at top left, rgba(168, 85, 247, 0.2), transparent 45%), rgba(15, 23, 42, 0.98);
  border-radius: var(--sb-radius-xl);
  padding: 22px;
  border: 1px solid var(--sb-border);
  box-shadow: var(--sb-shadow-soft);
}

.sb-brand-logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(15, 23, 42, 0.92);
  border: 1px solid rgba(148, 163, 184, 0.4);
  border-radius: 16px;
  padding: 12px;
  margin-bottom: 12px;
}

.sb-brand-logo-wrap-dark {
  background: #0b1120;
}

.sb-brand-logo {
  max-width: 100%;
  max-height: 140px;
  object-fit: contain;
  display: block;
}

.sb-brand-card h3 {
  margin: 8px 0 8px;
  font-size: 18px;
}

.sb-brand-card p {
  margin: 0;
  color: var(--sb-text-soft);
  font-size: 14px;
}

.sb-brand-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid rgba(168, 85, 247, 0.6);
  background: rgba(15, 23, 42, 0.96);
  color: #f5f3ff;
}

.sb-meta-list {
  margin: 14px 0 10px;
  padding: 0;
}

.sb-meta-list div {
  margin-bottom: 8px;
}

.sb-meta-list dt {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sb-text-soft);
  margin-bottom: 2px;
}

.sb-meta-list dd {
  margin: 0;
  font-size: 14px;
  color: var(--sb-text);
}

.sb-note {
  font-size: 13px;
  color: var(--sb-text-soft);
  margin: 6px 0 10px;
}

.sb-steps {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--sb-text-soft);
  font-size: 14px;
}

.sb-steps li {
  margin-bottom: 6px;
}

.sb-footer {
  margin-top: auto;
  padding: 16px 0 18px;
  border-top: 1px solid rgba(148, 163, 184, 0.4);
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.96), #020617);
}

.sb-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--sb-text-soft);
}

.sb-footer-links {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sb-footer-links a {
  color: #9ca3af;
}

.sb-footer-links a:hover {
  color: #e5e7eb;
}

.sb-form {
  background: rgba(15, 23, 42, 0.98);
  border-radius: var(--sb-radius-lg);
  padding: 18px 18px 16px;
  border: 1px solid var(--sb-border);
  box-shadow: var(--sb-shadow-soft);
}

.sb-form-field {
  margin-bottom: 12px;
}

.sb-form-field label {
  display: block;
  font-size: 13px;
  margin-bottom: 4px;
  color: #e5e7eb;
}

.sb-required {
  color: #f97316;
  margin-left: 2px;
}

.sb-form input,
.sb-form select,
.sb-form textarea {
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(15, 23, 42, 0.9);
  color: var(--sb-text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.sb-form input:focus,
.sb-form select:focus,
.sb-form textarea:focus {
  border-color: rgba(56, 189, 248, 0.9);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.5);
  background: rgba(15, 23, 42, 1);
}

.sb-form textarea {
  resize: vertical;
  min-height: 110px;
}

.sb-form-help {
  font-size: 11px;
  color: var(--sb-text-soft);
  margin: 4px 0 10px;
}

@media (max-width: 900px) {
  .sb-hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .sb-hero-card {
    order: -1;
  }

  .sb-grid-2col {
    grid-template-columns: minmax(0, 1fr);
  }

  .sb-grid-brands {
    grid-template-columns: minmax(0, 1fr);
  }

  .sb-header-right {
    gap: 8px;
  }
}

@media (max-width: 640px) {
  .sb-header-inner {
    padding: 10px 0;
  }

  .sb-hero {
    padding-top: 38px;
  }

  .sb-hero-text h1 {
    font-size: 24px;
  }

  .sb-hero-card,
  .sb-brand-card,
  .sb-form {
    padding: 16px 14px;
    border-radius: 16px;
  }

  .sb-footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}