:root {
    --bg: #0f0f1a;
    --bg-soft: #17172a;
    --card: rgba(255, 255, 255, 0.08);
    --text: #f3e9ff;
    --muted: #bdaed0;
    --primary: #e94560;
    --secondary: #b78bff;
    --border: rgba(255, 255, 255, 0.14);
    --max: 1120px;
  }
  
  * {
    box-sizing: border-box;
  }
  
  html,
  body {
    margin: 0;
    padding: 0;
    font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
    background: linear-gradient(180deg, #0f0f1a, #1a1a2e, #0f0f1a);
    color: var(--text);
  }
  
  a {
    color: inherit;
    text-decoration: none;
  }
  
  .container {
    width: min(100% - 2rem, var(--max));
    margin-inline: auto;
  }
  
  .site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(12px);
    background: rgba(15, 15, 26, 0.72);
    border-bottom: 1px solid var(--border);
  }
  
  .nav-wrap {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }
  
  .brand {
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: 0.3px;
  }
  
  .nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--muted);
  }
  
  .hero {
    padding: 5rem 0 3rem;
  }
  
  .hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1.2rem;
  }
  
  .chip {
    width: fit-content;
    padding: 0.35rem 0.8rem;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    font-size: 0.8rem;
    font-weight: 600;
  }
  
  h1 {
    margin: 1rem 0;
    font-size: clamp(2rem, 4vw, 3.3rem);
    line-height: 1.1;
  }
  
  .lead {
    color: var(--muted);
    max-width: 62ch;
    line-height: 1.7;
  }
  
  .cta-row {
    display: flex;
    gap: 0.8rem;
    margin-top: 1.4rem;
    flex-wrap: wrap;
  }
  
  .btn {
    border: 1px solid transparent;
    border-radius: 12px;
    padding: 0.7rem 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: 0.18s ease;
  }
  
  .btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
  }
  
  .btn-primary:hover {
    filter: brightness(1.06);
  }
  
  .btn-ghost {
    border-color: var(--border);
    color: var(--text);
    background: transparent;
  }
  
  .btn-ghost:hover {
    background: rgba(255, 255, 255, 0.06);
  }
  
  .hero-card,
  .card,
  .contact-form,
  .doc-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 20px;
  }
  
  .hero-card {
    padding: 1.2rem;
  }
  
  .hero-card ul {
    padding-left: 1.2rem;
    margin: 0.7rem 0 0;
    color: var(--muted);
    line-height: 1.8;
  }
  
  .section {
    padding: 2.2rem 0;
  }
  
  .section-alt {
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }
  
  h2 {
    margin: 0 0 0.8rem;
    font-size: clamp(1.5rem, 3vw, 2.1rem);
  }
  
  .section-lead {
    margin: 0 0 1.2rem;
    color: var(--muted);
  }
  
  .feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.8rem;
  }
  
  .card {
    padding: 1rem;
  }
  
  .card p {
    color: var(--muted);
    line-height: 1.65;
  }
  
  .contact-form {
    padding: 1rem;
    max-width: 740px;
  }
  
  .form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
  }
  
  label {
    display: block;
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
    color: var(--muted);
  }
  
  input,
  textarea {
    width: 100%;
    margin-top: 0.4rem;
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.25);
    color: var(--text);
    border-radius: 12px;
    padding: 0.75rem;
    font: inherit;
  }
  
  input:focus,
  textarea:focus {
    outline: none;
    border-color: var(--secondary);
  }
  
  .form-status {
    margin: 0.8rem 0 0;
    min-height: 1.3rem;
    color: var(--muted);
  }
  
  .hidden {
    display: none;
  }
  
  .site-footer {
    padding: 1.2rem 0 2rem;
  }
  
  .footer-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: var(--muted);
  }
  
  .footer-links {
    display: flex;
    gap: 0.8rem;
  }
  
  .doc-shell {
    padding: 2rem 0 3rem;
  }
  
  .doc-card {
    padding: 1.4rem;
  }
  
  .doc-card p,
  .doc-card li {
    color: var(--muted);
    line-height: 1.75;
  }
  
  @media (max-width: 980px) {
    .hero-grid {
      grid-template-columns: 1fr;
    }
  
    .feature-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }
  
  @media (max-width: 640px) {
    .nav-wrap {
      flex-direction: column;
      justify-content: center;
      padding: 0.7rem 0;
    }
  
    .form-grid,
    .feature-grid {
      grid-template-columns: 1fr;
    }
  
    .footer-wrap {
      flex-direction: column;
      align-items: flex-start;
    }
  }