:root {
    --bg-primary: #09090f;
    --bg-secondary: #0f0f17;
    --bg-card: #14141e;
    --bg-card-hover: #1a1a26;
    --neon-purple: #a855f7;
    --neon-purple-light: #c084fc;
    --neon-purple-dim: #7c3aed;
    --neon-magenta: #ec4899;
    --neon-green: #22c55e;
    --neon-amber: #f59e0b;
    --neon-blue: #3b82f6;
    --text-primary: #e8e8f0;
    --text-secondary: #8888a0;
    --text-dim: #55556a;
    --border: #1e1e2a;
    --border-light: #2a2a38;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }

  body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
  }

  body::before {
    content: '';
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.025'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
  }

  .grid-bg {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image:
      linear-gradient(rgba(168, 85, 247, 0.015) 1px, transparent 1px),
      linear-gradient(90deg, rgba(168, 85, 247, 0.015) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
  }

  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 18px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(9, 9, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
  }

  .logo {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-primary);
  }

  .logo-ai {
    opacity: 0.4;
  }

  .nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
  }

  .nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    transition: color 0.3s;
  }

  .nav-links a:hover { color: var(--text-primary); }

  .btn-nav {
    padding: 9px 22px;
    background: rgba(168, 85, 247, 0.12);
    border: 1px solid rgba(168, 85, 247, 0.3);
    color: var(--neon-purple-light);
    font-family: 'Outfit', sans-serif;
    font-size: 0.88rem;
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
  }

  .btn-nav:hover {
    background: rgba(168, 85, 247, 0.2);
    border-color: rgba(168, 85, 247, 0.5);
  }

  .hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 140px 40px 100px;
    z-index: 1;
  }

  .scroll-chevron {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-secondary);
    opacity: 0.5;
    transition: opacity 0.2s, transform 0.2s;
    animation: chevron-bounce 2s ease-in-out infinite;
  }
  .scroll-chevron:hover { opacity: 1; }
  .scroll-chevron svg { width: 32px; height: 32px; display: block; }

  @keyframes chevron-bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(6px); }
  }

  .hero-glow {
    position: absolute;
    width: 700px;
    height: 700px;
    border-radius: 50%;
    filter: blur(180px);
    opacity: 0.05;
    pointer-events: none;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--neon-purple);
  }

  .hero-badges {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    justify-content: center;
    animation: fadeInDown 0.8s ease-out;
  }

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 18px;
    background: rgba(168, 85, 247, 0.06);
    border: 1px solid rgba(168, 85, 247, 0.12);
    border-radius: 100px;
    font-size: 0.82rem;
    color: var(--neon-purple-light);
    font-weight: 500;
    letter-spacing: 0.03em;
  }

  .hero-badge::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--neon-purple-light);
    box-shadow: 0 0 8px var(--neon-purple);
    animation: pulse-dot 2s infinite;
  }

  .badge-yc {
    background: rgba(245, 158, 11, 0.08);
    border-color: rgba(245, 158, 11, 0.15);
    color: var(--neon-amber);
  }

  .badge-yc::before {
    background: var(--neon-amber);
    box-shadow: 0 0 8px var(--neon-amber);
    animation: none;
  }

  @keyframes pulse-dot {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
  }

  h1 {
    font-size: clamp(2.8rem, 6.5vw, 5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    max-width: 860px;
    margin-bottom: 28px;
    animation: fadeInUp 0.8s ease-out;
  }

  h1 .accent {
    background: linear-gradient(135deg, var(--neon-purple-light), var(--neon-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  .hero-sub {
    font-size: clamp(1.15rem, 2vw, 1.4rem);
    color: var(--text-secondary);
    max-width: 640px;
    line-height: 1.65;
    margin-bottom: 48px;
    font-weight: 300;
    animation: fadeInUp 0.8s ease-out 0.15s both;
  }

  .domain-form {
    display: flex;
    gap: 0;
    max-width: 540px;
    width: 100%;
    animation: fadeInUp 0.8s ease-out 0.3s both;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
  }

  .domain-form:focus-within {
    border-color: rgba(168, 85, 247, 0.4);
    box-shadow: 0 0 24px rgba(168, 85, 247, 0.08);
  }

  .domain-prefix {
    display: flex;
    align-items: center;
    padding: 0 2px 0 18px;
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.88rem;
    white-space: nowrap;
    user-select: none;
  }

  .domain-form input {
    flex: 1;
    padding: 16px 8px 16px 0;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.92rem;
    outline: none;
  }

  .domain-form input::placeholder { color: var(--text-dim); }

  .domain-form .btn-primary {
    padding: 16px 28px;
    margin: 4px;
    border-radius: 7px;
    font-size: 0.92rem;
  }

  .btn-primary {
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--neon-purple), var(--neon-purple-dim));
    color: #fff;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    white-space: nowrap;
  }

  .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 30px rgba(168, 85, 247, 0.25);
  }

  .hero-form-note {
    margin-top: 14px;
    font-size: 0.82rem;
    color: var(--text-dim);
    animation: fadeInUp 0.8s ease-out 0.4s both;
  }

  .tagline-strip {
    position: relative;
    z-index: 1;
    padding: 56px 40px;
    text-align: center;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
  }

  .tagline-strip p {
    font-size: clamp(1.1rem, 2.2vw, 1.45rem);
    color: var(--text-secondary);
    font-weight: 300;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.7;
  }

  .tagline-strip strong { color: var(--text-primary); font-weight: 600; }

  section {
    position: relative;
    z-index: 1;
    padding: 120px 40px;
  }

  .section-inner { max-width: 1100px; margin: 0 auto; }

  .section-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 16px;
    font-weight: 500;
  }

  .label-purple { color: var(--neon-purple-light); }
  .label-magenta { color: var(--neon-magenta); }
  .label-green { color: var(--neon-green); }

  h2 {
    font-size: clamp(1.9rem, 3.8vw, 2.8rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 18px;
  }

  .section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
    font-weight: 300;
  }

  .problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 56px;
  }

  .problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 28px 28px 32px;
    transition: all 0.3s;
  }

  .problem-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    transform: translateY(-2px);
  }

  .problem-icon-wrap {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
  }

  .problem-icon-wrap svg { width: 18px; height: 18px; }

  .icon-ghost { background: rgba(168, 85, 247, 0.1); }
  .icon-ghost svg { stroke: var(--neon-purple-light); }
  .icon-spend { background: rgba(236, 72, 153, 0.1); }
  .icon-spend svg { stroke: var(--neon-magenta); }
  .icon-silo { background: rgba(34, 197, 94, 0.1); }
  .icon-silo svg { stroke: var(--neon-green); }
  .icon-leak { background: rgba(245, 158, 11, 0.1); }
  .icon-leak svg { stroke: var(--neon-amber); }
  .icon-orphan { background: rgba(59, 130, 246, 0.1); }
  .icon-orphan svg { stroke: var(--neon-blue); }
  .icon-vanity { background: rgba(168, 85, 247, 0.1); }
  .icon-vanity svg { stroke: var(--neon-purple-light); }

  .problem-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }

  .problem-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 300;
  }

  .vision-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .vision-block {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.025), rgba(236, 72, 153, 0.02));
    border: 1px solid rgba(168, 85, 247, 0.07);
    border-radius: 14px;
    padding: 52px;
    margin-top: 44px;
    position: relative;
    overflow: hidden;
  }

  .vision-block::before {
    content: '';
    position: absolute;
    top: -1px; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--neon-purple), var(--neon-magenta), transparent);
  }

  .vision-block p {
    font-size: 1.08rem;
    color: var(--text-secondary);
    line-height: 1.8;
    font-weight: 300;
    max-width: 760px;
  }

  .vision-block p + p { margin-top: 22px; }
  .vision-block strong { color: var(--text-primary); font-weight: 500; }

  .cap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 56px;
  }

  .cap-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 36px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
  }

  .cap-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    opacity: 0;
    transition: opacity 0.3s;
  }

  .cap-card:hover::before { opacity: 1; }
  .cap-card:hover { background: var(--bg-card-hover); transform: translateY(-2px); }

  .cap-card.purple::before { background: linear-gradient(90deg, transparent, var(--neon-purple), transparent); }
  .cap-card.magenta::before { background: linear-gradient(90deg, transparent, var(--neon-magenta), transparent); }
  .cap-card.green::before { background: linear-gradient(90deg, transparent, var(--neon-green), transparent); }
  .cap-card.amber::before { background: linear-gradient(90deg, transparent, var(--neon-amber), transparent); }
  .cap-card.blue::before { background: linear-gradient(90deg, transparent, var(--neon-blue), transparent); }

  .cap-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    margin-bottom: 18px;
    display: block;
  }

  .cap-number.purple { color: var(--neon-purple-light); }
  .cap-number.magenta { color: var(--neon-magenta); }
  .cap-number.green { color: var(--neon-green); }
  .cap-number.amber { color: var(--neon-amber); }
  .cap-number.blue { color: var(--neon-blue); }

  .cap-card h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 10px; }

  .cap-card p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.65;
    font-weight: 300;
  }

  .bottom-line {
    text-align: center;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
  }

  .bottom-line h2 { max-width: 660px; margin: 0 auto 14px; }
  .bottom-line .section-desc { margin: 0 auto 20px; text-align: center; }

  .closing-line {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.95rem;
    color: var(--neon-purple-light);
    letter-spacing: 0.03em;
    margin-bottom: 48px;
    opacity: 0.8;
  }

  .cta-section { text-align: center; position: relative; }

  .cta-section .cta-glow {
    position: absolute;
    width: 500px; height: 500px;
    border-radius: 50%;
    filter: blur(180px);
    opacity: 0.04;
    pointer-events: none;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    background: var(--neon-purple);
  }

  .cta-section h2 { max-width: 600px; margin: 0 auto 18px; }
  .cta-section .section-desc { margin: 0 auto 36px; text-align: center; }

  .cta-domain-form {
    display: flex;
    gap: 0;
    max-width: 540px;
    width: 100%;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.3s, box-shadow 0.3s;
  }

  .cta-domain-form:focus-within {
    border-color: rgba(168, 85, 247, 0.4);
    box-shadow: 0 0 24px rgba(168, 85, 247, 0.08);
  }

  .cta-domain-form .domain-prefix {
    display: flex;
    align-items: center;
    padding: 0 0 0 18px;
    color: var(--text-dim);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.88rem;
    white-space: nowrap;
    user-select: none;
  }

  .cta-domain-form input {
    flex: 1;
    padding: 16px 8px 16px 0;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.92rem;
    outline: none;
  }

  .cta-domain-form input::placeholder { color: var(--text-dim); }

  .cta-domain-form .btn-primary {
    margin: 4px;
    border-radius: 7px;
    font-size: 0.92rem;
    padding: 16px 28px;
  }

  .cta-form-note {
    margin-top: 14px;
    font-size: 0.82rem;
    color: var(--text-dim);
  }

  footer {
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
  }

  .footer-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 72px 40px 48px;
  }

  .footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 56px;
  }

  .footer-brand .footer-logo {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-bottom: 14px;
  }

  .footer-logo .logo-ai {
    opacity: 0.4;
  }

  .footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    font-weight: 300;
    max-width: 280px;
  }

  .footer-brand .yc-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    padding: 5px 12px;
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.12);
    border-radius: 6px;
    font-size: 0.78rem;
    color: var(--neon-amber);
    font-weight: 500;
    letter-spacing: 0.03em;
  }

  .footer-col h4 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 20px;
    font-weight: 600;
  }

  .footer-col a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    padding: 5px 0;
    transition: color 0.2s;
  }

  .footer-col a:hover { color: var(--text-primary); }

  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 28px;
    border-top: 1px solid var(--border);
  }

  .footer-bottom p { color: var(--text-dim); font-size: 0.82rem; }

  .footer-bottom-links { display: flex; gap: 24px; }

  .footer-bottom-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.82rem;
    transition: color 0.2s;
  }

  .footer-bottom-links a:hover { color: var(--text-secondary); }

  @keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
  }

  @keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-16px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
  }

  .fade-in.visible { opacity: 1; transform: translateY(0); }

  @media (max-width: 900px) {
    .problem-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: 1fr 1fr; gap: 36px; }
  }

  @media (max-width: 640px) {
    nav { padding: 14px 20px; }
    .nav-links { display: none; }
    section { padding: 80px 20px; }
    .hero { padding: 110px 20px 70px; }
    .domain-form, .cta-domain-form {
      flex-wrap: wrap;
      border-radius: 10px;
    }
    .domain-form .domain-prefix, .cta-domain-form .domain-prefix {
      padding: 0 0 0 18px;
      flex-shrink: 0;
    }
    .domain-form input, .cta-domain-form input {
      flex: 1;
      min-width: 0;
      padding: 16px 8px;
    }
    .domain-form .btn-primary, .cta-domain-form .btn-primary {
      width: calc(100% - 8px);
      margin: 0 4px 4px;
      border-radius: 7px;
      flex-basis: 100%;
    }
    .vision-block { padding: 28px; }
    .tagline-strip { padding: 36px 20px; }
    .cap-grid { grid-template-columns: 1fr; }
    .problem-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
    .footer-inner { padding: 48px 20px 36px; }
  }