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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "SF Pro Display", system-ui,
    sans-serif;
  background: radial-gradient(circle at top, #0b1020, #050611 55%, #020308 100%);
  color: #e5e7eb;
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: linear-gradient(to bottom, rgba(3, 7, 18, 0.96), rgba(3, 7, 18, 0.8));
  border-bottom: 1px solid rgba(148, 163, 184, 0.26);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-circle {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: conic-gradient(from 180deg, #22c55e, #0ea5e9, #6366f1, #22c55e);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  color: #020617;
  box-shadow: 0 0 0 1px rgba(15, 23, 42, 0.9), 0 10px 35px rgba(59, 130, 246, 0.4);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand-subtitle {
  font-size: 11px;
  color: #9ca3af;
}

.nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: #e5e7eb;
  font-size: 22px;
  cursor: pointer;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  font-size: 13px;
  color: #e5e7eb;
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.nav-list a:hover {
  color: #38bdf8;
  border-color: rgba(56, 189, 248, 0.7);
}

.lang-switch {
  display: flex;
  gap: 4px;
  padding-left: 10px;
  border-left: 1px solid rgba(148, 163, 184, 0.4);
}

.lang-btn {
  border-radius: 999px;
  border: 1px solid transparent;
  background: rgba(15, 23, 42, 0.7);
  color: #9ca3af;
  font-size: 11px;
  padding: 4px 9px;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.lang-btn:hover {
  color: #e5e7eb;
  border-color: rgba(148, 163, 184, 0.6);
}

.lang-btn.is-active {
  background: linear-gradient(to right, #22c55e, #0ea5e9);
  color: #020617;
  border-color: transparent;
}

.section {
  padding: 64px 0;
}

.section-alt {
  background: radial-gradient(circle at top left, rgba(37, 99, 235, 0.16), transparent 55%),
    radial-gradient(circle at bottom right, rgba(45, 212, 191, 0.15), transparent 55%);
}

.hero {
  padding-top: 80px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(30px, 4vw, 40px);
  line-height: 1.2;
  margin: 0 0 16px;
}

.hero-subtitle {
  margin: 0 0 18px;
  color: #9ca3af;
  max-width: 480px;
  font-size: 14px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.tag {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.8);
  color: #d1d5db;
}

.tag.soft {
  background: rgba(15, 23, 42, 0.6);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn.primary {
  background: linear-gradient(to right, #22c55e, #0ea5e9);
  color: #020617;
  box-shadow: 0 12px 30px rgba(34, 197, 94, 0.35);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(34, 197, 94, 0.45);
}

.btn.ghost {
  background: rgba(15, 23, 42, 0.8);
  border-color: rgba(148, 163, 184, 0.45);
  color: #e5e7eb;
}

.btn.ghost:hover {
  border-color: rgba(56, 189, 248, 0.85);
  color: #bae6fd;
}

.btn.full-width {
  width: 100%;
}

.hero-graphic {
  display: flex;
  justify-content: flex-end;
}

.hero-card {
  width: 100%;
  max-width: 360px;
  border-radius: 20px;
  padding: 18px 18px 20px;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), transparent 60%),
    radial-gradient(circle at bottom right, rgba(34, 197, 94, 0.24), transparent 60%),
    rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.9);
}

.hero-card h3 {
  margin: 0 0 10px;
  font-size: 15px;
}

.hero-infographic-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

.hero-infographic-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  margin-bottom: 6px;
}

.bullet {
  width: 8px;
  height: 8px;
  border-radius: 999px;
}

.bullet.green {
  background: #22c55e;
}

.bullet.blue {
  background: #0ea5e9;
}

.bullet.purple {
  background: #6366f1;
}

.timeline {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed rgba(148, 163, 184, 0.6);
  display: grid;
  gap: 8px;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.timeline-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 2px solid rgba(56, 189, 248, 0.8);
  margin-top: 3px;
}

.timeline-label {
  font-size: 11px;
  color: #e5e7eb;
  font-weight: 500;
}

.timeline-desc {
  font-size: 11px;
  color: #9ca3af;
}

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

.section-header h2 {
  margin: 0 0 8px;
  font-size: 20px;
}

.section-header p {
  margin: 0;
  color: #9ca3af;
  font-size: 13px;
  max-width: 540px;
}

.grid {
  display: grid;
  gap: 16px;
}

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

.usecases-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

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

.card {
  border-radius: 14px;
  padding: 16px 16px 18px;
  background: rgba(15, 23, 42, 0.94);
  border: 1px solid rgba(148, 163, 184, 0.36);
  box-shadow: 0 14px 35px rgba(15, 23, 42, 0.85);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 15px;
}

.card p {
  margin: 0 0 10px;
  font-size: 13px;
  color: #9ca3af;
}

.card-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 12px;
  color: #cbd5f5;
}

.card-list li {
  margin-bottom: 4px;
}

.usecase-card .badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.16);
  border: 1px solid rgba(59, 130, 246, 0.6);
  font-size: 11px;
  margin-bottom: 6px;
}

.usecase-arrow {
  font-size: 13px;
  color: #6b7280;
  margin: 5px 0;
}

.usecase-metric {
  font-size: 12px;
  color: #bbf7d0;
}

.link-button {
  background: none;
  border: none;
  color: #38bdf8;
  font-size: 12px;
  padding: 0;
  cursor: pointer;
  margin-top: 4px;
}

.link-button:hover {
  text-decoration: underline;
}

.ai-demo-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 18px;
}

.ai-demo-panel {
  border-radius: 16px;
  padding: 18px;
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.4);
}

.ai-form label {
  display: block;
  font-size: 12px;
  margin-bottom: 4px;
  color: #e5e7eb;
}

.ai-form input,
.ai-form select,
.partners-form input,
.partners-form textarea,
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
  font-size: 13px;
  outline: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}

.ai-form input:focus,
.ai-form select:focus,
.partners-form input:focus,
.partners-form textarea:focus,
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: rgba(56, 189, 248, 0.9);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.4);
}

.ai-form > * + * {
  margin-top: 10px;
}

.ai-demo-note {
  font-size: 11px;
  color: #9ca3af;
}

.ai-demo-flow h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

.flow-list {
  list-style: none;
  padding: 0;
  margin: 0 0 10px;
  display: grid;
  gap: 6px;
  font-size: 12px;
}

.flow-list li {
  display: flex;
  gap: 8px;
}

.flow-step {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: rgba(30, 64, 175, 0.9);
  color: #e5e7eb;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
}

.flow-label {
  font-weight: 500;
}

.flow-desc {
  color: #9ca3af;
}

.ai-response {
  margin-top: 10px;
  min-height: 42px;
  border-radius: 10px;
  padding: 8px 10px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px dashed rgba(148, 163, 184, 0.7);
  font-size: 12px;
  color: #e5e7eb;
}

.partners-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 18px;
}

.partner-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0;
}

.placeholder-text {
  font-size: 12px;
  color: #9ca3af;
}

.partners-form .form-note,
.subscribe-form .form-note {
  font-size: 11px;
  color: #6b7280;
  margin-top: 6px;
}

.about-layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0 0 8px;
  font-size: 12px;
}

.contact-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 5px;
}

.contact-list a {
  color: #38bdf8;
  text-decoration: none;
  font-size: 12px;
}

.contact-list a:hover {
  text-decoration: underline;
}

.contact-form > * + * {
  margin-top: 8px;
}

.subscribe-form {
  margin-top: 4px;
}

.subscribe-input-group {
  display: flex;
  gap: 6px;
  margin-top: 6px;
}

.subscribe-input-group input {
  flex: 1 1 auto;
}

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.4);
  padding: 16px 0;
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.9), #020617 60%);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px;
  font-size: 11px;
  color: #9ca3af;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.86);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.modal {
  width: 100%;
  max-width: 420px;
  border-radius: 18px;
  padding: 18px 18px 16px;
  background: rgba(15, 23, 42, 0.98);
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.9);
}

.modal-close {
  position: absolute;
  top: 8px;
  right: 10px;
  border: none;
  background: none;
  color: #9ca3af;
  font-size: 18px;
  cursor: pointer;
}

.modal-content {
  font-size: 13px;
  color: #d1d5db;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

  .hero-graphic {
    justify-content: flex-start;
  }

  .ai-demo-layout,
  .partners-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .header-inner {
    height: 56px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-list {
    position: absolute;
    top: 56px;
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 20px 12px;
    background: rgba(3, 7, 18, 0.98);
    border-bottom: 1px solid rgba(148, 163, 184, 0.3);
    display: none;
  }

  .nav-list.is-open {
    display: flex;
  }

  .lang-switch {
    display: none;
  }
}