:root {
      --bg: #ffffff;
      --bg-alt: #f8fafc;
      --surface: #ffffff;
      --text: #0f172a;
      --muted: #475569;
      --line: #e5e7eb;
      --primary: #2563eb;
      --primary-soft: rgba(37, 99, 235, 0.08);
      --shadow-soft: 0 8px 24px rgba(15, 23, 42, 0.04);
      --radius: 16px;
      --radius-lg: 24px;
      --max-width: 1200px;
      --font: "Sora", system-ui, sans-serif;
      --grid: linear-gradient(rgba(15, 23, 42, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(15, 23, 42, 0.035) 1px, transparent 1px);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      font-size: 17px;
      line-height: 1.65;
      color: var(--text);
      background: var(--bg);
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

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

    button,
    input,
    select,
    textarea {
      font: inherit;
    }

    .container {
      width: min(var(--max-width), calc(100% - 40px));
      margin: 0 auto;
    }

    .section {
      padding: 120px 0;
      position: relative;
    }

    .section-alt {
      background: var(--bg-alt);
    }

    .hero,
    .grid-section {
      position: relative;
    }

    .hero::before,
    .grid-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: var(--grid);
      background-size: 48px 48px;
      opacity: 0.7;
      pointer-events: none;
      mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 90%);
      -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 90%);
    }

    .page-shell {
      overflow: clip;
    }

    .reveal {
      opacity: 0;
      transform: translateY(18px);
      transition: opacity 0.7s ease, transform 0.7s ease;
    }

    .reveal.visible {
      opacity: 1;
      transform: none;
    }

    @keyframes fadeUp {
      from {
        opacity: 0;
        transform: translateY(16px);
      }
      to {
        opacity: 1;
        transform: none;
      }
    }

    h1,
    h2,
    h3,
    p {
      margin: 0;
    }

    nav {
      position: fixed;
      top: 18px;
      left: 50%;
      transform: translateX(-50%);
      width: min(1240px, calc(100% - 24px));
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 16px 24px;
      background: rgba(255, 255, 255, 0.92);
      border: 1px solid rgba(229, 231, 235, 0.95);
      border-radius: 18px;
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      box-shadow: 0 10px 28px rgba(15, 23, 42, 0.04);
      z-index: 100;
      transition: padding 0.25s ease;
    }

    .nav-brand,
    .footer-brand {
      display: inline-flex;
      align-items: center;
      gap: 12px;
    }

    .logo-mark {
      width: 38px;
      height: 38px;
      object-fit: contain;
      flex-shrink: 0;
    }

    .wordmark {
      font-size: 18px;
      font-weight: 700;
      letter-spacing: -0.04em;
    }

    .nav-links,
    .footer-links {
      display: flex;
      align-items: center;
      gap: 28px;
      color: var(--muted);
    }

    .nav-links a,
    .footer-links a {
      font-size: 14px;
      transition: color 0.2s ease;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 10px;
      min-height: 48px;
      padding: 0 18px;
      border-radius: 12px;
      border: 1px solid transparent;
      font-size: 15px;
      font-weight: 600;
      cursor: pointer;
      transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
    }

    .btn:hover {
      transform: translateY(-1px);
    }

    .btn-primary {
      color: #fff;
      background: var(--primary);
      box-shadow: 0 10px 22px rgba(37, 99, 235, 0.16);
    }

    .btn-primary:hover {
      background: #1d4ed8;
    }

    .btn-secondary {
      color: var(--text);
      background: #fff;
      border-color: var(--line);
    }

    .btn-secondary:hover {
      border-color: rgba(37, 99, 235, 0.22);
      color: var(--primary);
    }

    .hero {
      padding: 176px 0 120px;
      background: #fff;
      isolation: isolate;
    }

    .hero-inner {
      position: relative;
      z-index: 1;
      max-width: 860px;
      margin: 0 auto;
      text-align: center;
    }

    .hero-badge,
    .hero-title,
    .hero-subtitle,
    .hero-actions {
      opacity: 0;
      animation: fadeUp 0.7s ease forwards;
    }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      padding: 10px 14px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: #fff;
      color: var(--muted);
      font-size: 13px;
      font-weight: 600;
    }

    .hero-badge::before {
      content: "";
      width: 8px;
      height: 8px;
      border-radius: 999px;
      background: var(--primary);
    }

    .hero-title {
      margin-top: 28px;
      font-size: clamp(64px, 7vw, 72px);
      line-height: 1.06;
      letter-spacing: -0.06em;
      font-weight: 700;
      max-width: 760px;
      margin-left: auto;
      margin-right: auto;
      animation-delay: 0.08s;
    }

    .hero-title em {
      color: var(--primary);
      font-style: normal;
    }

    .hero-subtitle {
      margin-top: 24px;
      max-width: 680px;
      font-size: 18px;
      color: var(--muted);
      margin-left: auto;
      margin-right: auto;
      animation-delay: 0.16s;
    }

    .hero-actions {
      margin-top: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 14px;
      animation-delay: 0.24s;
    }

    .section-label {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 18px;
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--primary);
    }

    .section-label::before {
      content: "";
      width: 24px;
      height: 1px;
      background: currentColor;
      opacity: 0.45;
    }

    .section-head {
      display: flex;
      align-items: end;
      justify-content: space-between;
      gap: 32px;
      margin-bottom: 48px;
    }

    .section-head.centered {
      display: block;
      max-width: 760px;
      margin: 0 auto 56px;
      text-align: center;
    }

    .section-head.centered .section-title,
    .section-head.centered .section-copy {
      margin-left: auto;
      margin-right: auto;
    }

    .section-head.centered .section-copy {
      max-width: 720px;
      margin-top: 28px;
    }

    .section-title {
      max-width: 760px;
      font-size: clamp(40px, 4.6vw, 48px);
      line-height: 1.04;
      letter-spacing: -0.05em;
      font-weight: 700;
    }

    .section-copy {
      max-width: 560px;
      font-size: 18px;
      color: var(--muted);
    }

    .right-copy {
      text-align: right;
      margin-left: auto;
    }

    .problem-grid,
    .overview-grid,
    .feature-stack,
    .steps-wrap {
      display: grid;
      gap: 18px;
    }

    .problem-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .overview-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
      align-items: stretch;
    }

    .problem-block,
    .overview-block,
    .feature-panel,
    .process-step,
    .demo-form-wrap {
      background: #fff;
      border: 1px solid var(--line);
      border-radius: 16px;
      box-shadow: var(--shadow-soft);
    }

    .problem-block,
    .overview-block,
    .process-step {
      padding: 24px;
    }

    .overview-block,
    .process-step {
      height: 100%;
    }

    .problem-kicker,
    .overview-kicker,
    .step-number {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      margin-bottom: 16px;
      border-radius: 10px;
      background: var(--primary-soft);
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
    }

    .problem-block h3,
    .overview-block h3,
    .feature-copy h3,
    .process-step h3 {
      margin-bottom: 10px;
      font-size: 22px;
      line-height: 1.2;
      letter-spacing: -0.03em;
    }

    .problem-block p,
    .overview-block p,
    .feature-copy p,
    .process-step p,
    .demo-copy p,
    .submit-note,
    .footer-note {
      color: var(--muted);
    }

    .problem-block p,
    .overview-block p,
    .feature-copy p,
    .process-step p {
      font-size: 16px;
    }

    .feature-stack {
      gap: 20px;
      max-width: 880px;
      margin: 0 auto;
    }

    .feature-panel {
      padding: 28px;
    }

    .feature-copy {
      max-width: 760px;
    }

    .tag {
      display: inline-flex;
      align-items: center;
      padding: 8px 12px;
      margin-bottom: 18px;
      border-radius: 999px;
      background: var(--primary-soft);
      color: var(--primary);
      font-size: 12px;
      font-weight: 700;
      letter-spacing: 0.12em;
      text-transform: uppercase;
    }

    .tag.alt {
      background: #f8fafc;
      color: var(--text);
    }

    .feature-list,
    .perk-list {
      list-style: none;
      padding: 0;
      margin: 22px 0 0;
      display: grid;
      gap: 10px;
    }

    .feature-list li,
    .perk-list li {
      position: relative;
      padding-left: 18px;
      font-size: 15px;
      color: var(--text);
    }

    .feature-list li::before,
    .perk-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 11px;
      width: 6px;
      height: 6px;
      border-radius: 999px;
      background: var(--primary);
    }

    .steps-wrap {
      grid-template-columns: repeat(4, minmax(0, 1fr));
      align-items: stretch;
    }

    .process-step h3 {
      font-size: 20px;
    }

    .demo-grid {
      display: grid;
      grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
      gap: 28px;
      align-items: start;
    }

    .demo-copy h2 {
      margin-bottom: 18px;
      font-size: clamp(40px, 4.6vw, 48px);
      line-height: 1.04;
      letter-spacing: -0.05em;
      font-weight: 700;
    }

    .demo-copy p {
      max-width: 560px;
      font-size: 17px;
    }

    .demo-form-wrap {
      padding: 34px;
    }

    .form-grid {
      display: grid;
      gap: 18px;
    }

    .form-row {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
    }

    .field {
      display: grid;
      gap: 8px;
    }

    label {
      font-size: 14px;
      font-weight: 600;
      color: var(--muted);
    }

    input,
    select,
    textarea {
      width: 100%;
      min-height: 52px;
      padding: 14px 16px;
      border-radius: 12px;
      border: 1px solid var(--line);
      background: #fff;
      color: var(--text);
      outline: none;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }

    textarea {
      min-height: 140px;
      resize: vertical;
    }

    input:focus,
    select:focus,
    textarea:focus {
      border-color: rgba(37, 99, 235, 0.4);
      box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
    }

    .submit-note {
      margin-top: 12px;
      font-size: 13px;
      text-align: center;
    }

    .success-card {
      display: none;
      text-align: center;
      padding: 28px 10px;
    }

    .success-icon {
      width: 56px;
      height: 56px;
      margin: 0 auto 18px;
      border-radius: 999px;
      display: grid;
      place-items: center;
      background: var(--primary);
    }

    .success-card h3 {
      margin-bottom: 10px;
      font-size: 24px;
    }

    .success-card p {
      max-width: 420px;
      margin: 0 auto;
      color: var(--muted);
    }

    footer {
      padding: 28px 0 34px;
      border-top: 1px solid var(--line);
      background: #fff;
    }

    .footer-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 24px;
      flex-wrap: wrap;
    }

    .footer-note {
      font-size: 13px;
    }

    @media (max-width: 1024px) {
      .overview-grid,
      .steps-wrap,
      .demo-grid {
        grid-template-columns: 1fr 1fr;
      }

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

    @media (max-width: 768px) {
      .section {
        padding: 96px 0;
      }

      nav {
        top: 12px;
        width: calc(100% - 16px);
        padding: 14px 16px;
      }

      .nav-links {
        display: none;
      }

      .hero {
        padding: 136px 0 96px;
      }

      .hero-title {
        font-size: clamp(48px, 14vw, 64px);
      }

      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .section-head {
        display: block;
      }

      .right-copy {
        margin-top: 16px;
        margin-left: 0;
        text-align: left;
      }

      .problem-grid,
      .overview-grid,
      .steps-wrap,
      .demo-grid,
      .form-row {
        grid-template-columns: 1fr;
      }

      .feature-panel,
      .demo-form-wrap {
        padding: 24px;
      }

      .footer-inner {
        flex-direction: column;
        align-items: flex-start;
      }

      .footer-links {
        flex-wrap: wrap;
        gap: 16px;
      }
    }