/* ============ RESET + ROOT ============ */
  *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
  :root {
    --bg: #0a0e1a;
    --bg-soft: #11172a;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.16);
    --text: #f8fafc;
    --text-2: #cbd5e1;
    --text-3: #94a3b8;
    --orange: #f89820;
    --orange-2: #ed8b00;
    --purple: #a855f7;
    --blue: #3b82f6;
    --green: #10b981;
    --red: #ef4444;
    --yellow: #eab308;
    --radius: 16px;
    --max-w: 1180px;
  }
  html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
  }
  ::selection { background: var(--orange); color: #0b1220; }
  a { color: inherit; text-decoration: none; }
  img, svg { display: block; max-width: 100%; height: auto; }
  button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

  /* ============ DECORATIVE BG ============ */
  .bg-aurora {
    position: fixed; inset: 0; z-index: -1; pointer-events: none;
    background:
      radial-gradient(ellipse 800px 600px at 80% -10%, rgba(248, 152, 32, 0.18), transparent 60%),
      radial-gradient(ellipse 700px 500px at 10% 30%, rgba(168, 85, 247, 0.14), transparent 60%),
      radial-gradient(ellipse 900px 600px at 50% 100%, rgba(59, 130, 246, 0.12), transparent 60%);
  }
  .bg-grid {
    position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.4;
    background-image:
      linear-gradient(rgba(148, 163, 184, 0.04) 1px, transparent 1px),
      linear-gradient(90deg, rgba(148, 163, 184, 0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 40%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 40%, transparent 80%);
  }

  /* ============ LAYOUT ============ */
  .wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
  section { padding: 96px 0; position: relative; }
  @media (max-width: 768px) { section { padding: 64px 0; } }

  /* ============ NAV ============ */
  .nav {
    position: sticky; top: 0; z-index: 50;
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    background: rgba(10, 14, 26, 0.7);
    border-bottom: 1px solid var(--border);
  }
  .nav-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 24px;
    max-width: var(--max-w); margin: 0 auto;
  }
  .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 17px; letter-spacing: -0.02em; }
  .brand-mark {
    width: 28px; height: 28px; border-radius: 8px;
    background: linear-gradient(135deg, var(--orange), var(--purple));
    display: grid; place-items: center; font-size: 16px; font-weight: 900;
    box-shadow: 0 4px 16px rgba(248, 152, 32, 0.3);
  }
  .nav-links { display: flex; align-items: center; gap: 28px; }
  .nav-links a {
    color: var(--text-2); font-size: 14px; font-weight: 500;
    transition: color 0.2s;
  }
  .nav-links a:hover { color: var(--text); }
  .nav-cta {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 9px 18px; border-radius: 999px;
    background: linear-gradient(135deg, var(--orange), var(--orange-2));
    color: #0b1220 !important; font-weight: 700; font-size: 14px;
    box-shadow: 0 6px 20px -4px rgba(248, 152, 32, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
  }
  .nav-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 24px -4px rgba(248, 152, 32, 0.5); }
  @media (max-width: 640px) {
    .nav-links a:not(.nav-cta) { display: none; }
  }

  /* ============ HERO ============ */
  .hero { padding-top: 64px; padding-bottom: 32px; text-align: center; }
  .badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px; border-radius: 999px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--green); font-size: 13px; font-weight: 600;
    margin-bottom: 28px;
  }
  .badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 2s infinite; }
  @keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
    50% { opacity: 0.6; box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  }
  h1.hero-title {
    font-size: clamp(40px, 7vw, 76px);
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.05;
    max-width: 900px; margin: 0 auto 24px;
  }
  .grad-text {
    background: linear-gradient(135deg, var(--orange), #ffd700, var(--orange-2));
    background-size: 200% 200%;
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-shift 6s ease infinite;
  }
  @keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
  }
  .hero-sub {
    font-size: clamp(17px, 2vw, 21px);
    color: var(--text-3);
    max-width: 680px; margin: 0 auto 36px;
    line-height: 1.55;
  }
  .cta-row {
    display: flex; gap: 14px; justify-content: center; flex-wrap: wrap;
  }
  .btn-primary {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 26px; border-radius: 12px;
    background: linear-gradient(135deg, var(--orange), var(--orange-2));
    color: #0b1220; font-weight: 700; font-size: 15px;
    box-shadow: 0 10px 30px -8px rgba(248, 152, 32, 0.5);
    transition: transform 0.2s, box-shadow 0.2s;
  }
  .btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 36px -8px rgba(248, 152, 32, 0.6); }
  .btn-secondary {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 26px; border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-strong);
    color: var(--text); font-weight: 600; font-size: 15px;
    transition: background 0.2s, border-color 0.2s;
  }
  .btn-secondary:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.25); }

  /* ============ STATS BAR ============ */
  .stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px; margin-top: 80px;
    padding: 32px;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
  }
  .stat { text-align: center; }
  .stat-num {
    font-size: clamp(28px, 5vw, 44px);
    font-weight: 900; letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--orange), var(--purple));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
  }
  .stat-label { color: var(--text-3); font-size: 13px; font-weight: 500; margin-top: 8px; }
  @media (max-width: 640px) {
    .stats { grid-template-columns: repeat(2, 1fr); padding: 24px; gap: 20px; }
  }

  /* ============ SECTION HEADERS ============ */
  .section-tag {
    display: inline-block;
    color: var(--orange); font-size: 13px; font-weight: 700;
    letter-spacing: 0.15em; text-transform: uppercase;
    margin-bottom: 12px;
  }
  h2.section-title {
    font-size: clamp(30px, 4.5vw, 46px);
    font-weight: 800; letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 16px;
  }
  .section-sub {
    font-size: 18px; color: var(--text-3);
    max-width: 640px; line-height: 1.5;
  }
  .section-head { margin-bottom: 56px; }
  .section-head.center { text-align: center; }
  .section-head.center .section-sub { margin: 0 auto; }

  /* ============ LANGUAGES GRID ============ */
  .lang-grid {
    display: grid; gap: 20px;
    grid-template-columns: repeat(4, 1fr);
  }
  @media (max-width: 900px) { .lang-grid { grid-template-columns: repeat(2, 1fr); } }
  @media (max-width: 480px) { .lang-grid { grid-template-columns: 1fr; } }
  .lang-card {
    padding: 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: transform 0.25s, border-color 0.25s, background 0.25s;
    position: relative; overflow: hidden;
  }
  .lang-card::before {
    content: ''; position: absolute; inset: 0;
    background: var(--card-grad, linear-gradient(135deg, transparent, transparent));
    opacity: 0; transition: opacity 0.3s;
    pointer-events: none;
  }
  .lang-card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
  .lang-card:hover::before { opacity: 0.08; }
  .lang-icon {
    width: 44px; height: 44px; border-radius: 12px;
    display: grid; place-items: center; font-weight: 800; font-size: 14px;
    margin-bottom: 16px; color: white;
  }
  .lang-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
  .lang-card .rules { color: var(--orange); font-weight: 700; font-size: 14px; }
  .lang-card p { color: var(--text-3); font-size: 13px; margin-top: 8px; }

  /* ============ FEATURE GRID (BENTO) ============ */
  .feature-grid {
    display: grid; gap: 20px;
    grid-template-columns: repeat(6, 1fr);
  }
  .feature {
    padding: 28px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative; overflow: hidden;
    transition: transform 0.25s, border-color 0.25s;
  }
  .feature:hover { transform: translateY(-4px); border-color: var(--border-strong); }
  .feature.span-3 { grid-column: span 3; }
  .feature.span-2 { grid-column: span 2; }
  .feature.span-4 { grid-column: span 4; }
  @media (max-width: 900px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .feature.span-3, .feature.span-2, .feature.span-4 { grid-column: span 2; }
  }
  @media (max-width: 560px) {
    .feature-grid { grid-template-columns: 1fr; }
    .feature.span-3, .feature.span-2, .feature.span-4 { grid-column: auto; }
  }
  .feature-ico {
    width: 44px; height: 44px; border-radius: 12px;
    display: grid; place-items: center;
    margin-bottom: 18px;
  }
  .feature h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; letter-spacing: -0.01em; }
  .feature p { color: var(--text-3); font-size: 14.5px; line-height: 1.55; }
  .chip-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
  .chip {
    display: inline-block; padding: 4px 10px; border-radius: 999px;
    background: rgba(255, 255, 255, 0.05); border: 1px solid var(--border);
    color: var(--text-2); font-size: 12px; font-weight: 500;
    font-family: 'JetBrains Mono', monospace;
  }

  /* ============ HOW IT WORKS ============ */
  .steps {
    display: grid; gap: 20px;
    grid-template-columns: repeat(3, 1fr);
  }
  @media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }
  .step {
    padding: 32px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
  }
  .step-num {
    position: absolute; top: 24px; right: 24px;
    font-size: 64px; font-weight: 900; line-height: 1;
    background: linear-gradient(135deg, var(--orange), var(--purple));
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.3;
  }
  .step h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; margin-right: 50px; }
  .step p { color: var(--text-3); font-size: 14.5px; }

  /* ============ SAMPLE REVIEW ============ */
  .review-mock {
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.6);
  }
  .review-head {
    padding: 14px 20px;
    background: #161b22;
    border-bottom: 1px solid #30363d;
    display: flex; align-items: center; gap: 12px;
    font-size: 13px; color: #c9d1d9;
  }
  .review-avatar {
    width: 28px; height: 28px; border-radius: 50%;
    background: linear-gradient(135deg, var(--orange), var(--purple));
    display: grid; place-items: center; font-weight: 800; font-size: 12px; color: #0b1220;
  }
  .review-body { padding: 20px; font-size: 14px; color: #c9d1d9; line-height: 1.6; }
  .review-body h4 { font-size: 16px; margin-bottom: 12px; color: #f0f6fc; }
  .review-table { width: 100%; border-collapse: collapse; margin: 12px 0; }
  .review-table th, .review-table td { padding: 8px 12px; text-align: left; border: 1px solid #30363d; font-size: 13px; }
  .review-table th { background: #161b22; font-weight: 600; }
  .sev-row { display: flex; align-items: center; gap: 8px; }
  .sev-dot { width: 10px; height: 10px; border-radius: 50%; }
  .review-issue {
    padding: 12px; margin-top: 8px;
    background: #161b22; border-left: 3px solid;
    border-radius: 6px; font-size: 13px;
  }
  .review-issue.high { border-color: var(--red); }
  .review-issue.mid { border-color: var(--yellow); }
  .review-issue code {
    background: rgba(110, 118, 129, 0.4);
    padding: 2px 6px; border-radius: 4px;
    font-family: 'JetBrains Mono', monospace; font-size: 12px;
  }
  .review-tip {
    margin-top: 6px; padding-left: 12px;
    border-left: 2px solid #30363d;
    color: var(--text-3); font-size: 12.5px;
  }

  /* ============ CTA BANNER ============ */
  .cta-banner {
    padding: 56px 40px;
    border-radius: 28px;
    background:
      radial-gradient(ellipse 600px 200px at 50% 0%, rgba(248, 152, 32, 0.25), transparent 60%),
      linear-gradient(135deg, rgba(168, 85, 247, 0.1), rgba(59, 130, 246, 0.1));
    border: 1px solid var(--border-strong);
    text-align: center;
  }
  .cta-banner h2 { font-size: clamp(28px, 4vw, 40px); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 14px; }
  .cta-banner p { color: var(--text-2); font-size: 17px; margin-bottom: 28px; max-width: 540px; margin-left: auto; margin-right: auto; }

  /* ============ FAQ ============ */
  .faq { max-width: 760px; margin: 0 auto; }
  .faq-item {
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
  }
  .faq-q {
    width: 100%; display: flex; align-items: center; justify-content: space-between;
    font-size: 17px; font-weight: 600; color: var(--text); text-align: left;
    padding: 4px 0;
  }
  .faq-q::after {
    content: '+'; font-size: 26px; font-weight: 300; color: var(--orange);
    transition: transform 0.25s;
  }
  details[open] > .faq-q::after { transform: rotate(45deg); }
  .faq-a {
    margin-top: 12px; color: var(--text-3); font-size: 15px;
    padding-right: 24px; line-height: 1.6;
  }
  details > summary { list-style: none; cursor: pointer; }
  details > summary::-webkit-details-marker { display: none; }

  /* ============ FOOTER ============ */
  footer {
    border-top: 1px solid var(--border);
    padding: 60px 24px 40px;
    color: var(--text-3);
    font-size: 14px;
  }
  footer .footer-grid {
    max-width: 1100px;
    margin: 0 auto 40px;
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
  }
  footer .footer-brand h3 {
    color: var(--text);
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 10px;
    background: linear-gradient(90deg, var(--orange), var(--purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  footer .footer-brand p {
    color: var(--text-2);
    line-height: 1.6;
    margin-bottom: 20px;
    max-width: 380px;
  }
  footer .footer-form h4 {
    color: var(--text);
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
  }
  footer .footer-form .form-sub {
    color: var(--text-3);
    font-size: 13px;
    margin-bottom: 16px;
  }
  footer .feedback-form { display: grid; gap: 10px; }
  footer .feedback-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  footer .feedback-form input,
  footer .feedback-form textarea {
    width: 100%;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-family: inherit;
    font-size: 14px;
    transition: border-color 0.2s, background 0.2s;
  }
  footer .feedback-form input:focus,
  footer .feedback-form textarea:focus {
    outline: none;
    border-color: var(--orange);
    background: rgba(255, 255, 255, 0.06);
  }
  footer .feedback-form textarea { resize: vertical; min-height: 90px; }
  footer .feedback-form button {
    padding: 12px 22px;
    background: linear-gradient(90deg, var(--orange), var(--orange-2));
    color: #0a0e1a;
    border: none;
    border-radius: 10px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    justify-self: start;
  }
  footer .feedback-form button:hover { transform: translateY(-1px); box-shadow: 0 8px 24px rgba(248, 152, 32, 0.3); }
  footer .feedback-form button:disabled { opacity: 0.6; cursor: wait; transform: none; }
  footer .form-status {
    font-size: 13px;
    min-height: 18px;
    margin-top: 4px;
  }
  footer .form-status.success { color: #4ade80; }
  footer .form-status.error { color: #f87171; }
  footer .footer-bottom {
    max-width: 1100px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
  }
  footer .links { display: flex; gap: 24px; flex-wrap: wrap; }
  footer .links a { color: var(--text-2); transition: color 0.2s; }
  footer .links a:hover { color: var(--orange); }
  @media (max-width: 760px) {
    footer .footer-grid { grid-template-columns: 1fr; gap: 40px; }
    footer .feedback-form .row { grid-template-columns: 1fr; }
    footer .footer-bottom { flex-direction: column; text-align: center; }
  }

  /* ============ FLOW VIZ ============ */
  .flow-viz {
    margin: 60px auto 0;
    max-width: 980px;
    padding: 32px 24px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 24px;
  }
  .flow-row {
    display: flex; align-items: center; justify-content: space-between;
    flex-wrap: nowrap;
  }
  .flow-node {
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    flex: 0 0 auto; text-align: center;
  }
  .flow-icon {
    width: 56px; height: 56px; border-radius: 14px;
    display: grid; place-items: center; color: white;
    box-shadow: 0 6px 20px -6px rgba(0, 0, 0, 0.5);
  }
  .flow-label { font-size: 12px; font-weight: 600; color: var(--text-2); }
  .flow-arrow {
    flex: 1 1 auto; height: 2px;
    background: linear-gradient(90deg, transparent, var(--orange), transparent);
    margin: 0 8px; min-width: 12px;
    position: relative;
  }
  .flow-arrow::after {
    content: ''; position: absolute; top: -3px; left: 0;
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--orange); box-shadow: 0 0 12px var(--orange);
    animation: flow-pulse 3s infinite;
  }
  @keyframes flow-pulse {
    0% { left: 0%; opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { left: 100%; opacity: 0; }
  }
  @media (max-width: 720px) {
    .flow-viz {margin-top:30px; padding: 24px 0px; }
    .flow-icon { width: 34px; height: 34px; border-radius: 10px; }
    .flow-label { font-size: 8px; }
    .flow-arrow { margin: 0 0px; }
  }

  @media (max-width: 480px) {
  .stats { margin-top: 40px; }
  #languages { margin-top: -20px; }
  #features { margin-top: -20px; }
  #how-it-works { margin-top: -20px; }
  #output { margin-top: -20px; }
  #cta { margin-top: -20px; }
  #faq { margin-top: -20px; }
}