:root {
    --color-brand-red: #E8383B;
    --color-brand-blue: #5983BC;
    --white: #ffffff;
    --white-soft: rgba(255, 255, 255, 0.85);
    --white-faint: rgba(255, 255, 255, 0.14);
    --white-border: rgba(255, 255, 255, 0.18);
    --card-bg: rgba(255, 255, 255, 0.06);
    --card-bg-hover: rgba(255, 255, 255, 0.1);
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.18);
    --color-transparent: transparent;
  }
  
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }
  
  html,
  body {
    width: 100%;
    min-height: 100%;
    margin: 0;
    padding: 0;
  }
  
  body {
    font-family: 'Montserrat', Arial, sans-serif;
    color: var(--white);
    background: linear-gradient(
        180deg,
        #111213 0%,
        var(--color-brand-blue) 55%,
        #14151A 80%
    );
    overflow-x: hidden;
  }
  
  .page-shell {
    position: relative;
    min-height: 100vh;
    padding-top: 20px;
  }

  .page-content {
    padding: 0 24px;
  }
  .page-header,
  .roadmap-section {
    max-width: 1140px;
    margin-left: auto;
    margin-right: auto;
  }

  .page-header {
    margin: 80px auto 40px;
    text-align: center;
  }

  .page-title {
    position: relative;
    margin: 0 auto 14px;
    width: fit-content;
    max-width: 100%;
    text-align: center;
    font-size: 60px;
    font-weight: 800;
    line-height: 1.1;
    background: linear-gradient(90deg, var(--color-brand-red) 0%, var(--color-brand-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: var(--color-transparent);
    background-clip: text;
    color: var(--color-transparent);
    z-index: 2;
  }

  .page-subtitle {
    margin: 20px auto 0;
    width: fit-content;
    padding: 0 32px;
    text-align: center;
    font-size: clamp(20px, 1.5vw, 24px);
    line-height: 1.35;
    font-style: italic;
    font-weight: 700;
    letter-spacing: 0.01em;
    background: linear-gradient(90deg, #E8383B 0%, #5983BC 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
  }
  
  .roadmap-section {
    padding: 10px 0 90px;
  }
  
  .roadmap-grid {
    display: grid;
    gap: 28px;
  }
  
  .roadmap-card {
    border: 1px solid var(--white-border);
    border-radius: 24px;
    background: var(--card-bg);
    box-shadow: var(--shadow);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    overflow: hidden;
  }
  
  .card-header {
    padding: 28px 30px 20px;
    border-bottom: 1px solid var(--white-faint);
  }
  
  .quarter {
    margin: 0 0 8px;
    font-size: clamp(24px, 4vw, 34px);
    line-height: 1.2;
    font-weight: 800;
    color: var(--white);
  }
  
  .months {
    margin: 0;
    font-size: 15px;
    line-height: 1.6;
    color: var(--white-soft);
    font-weight: 500;
  }
  
  .feature-list {
    display: grid;
    gap: 0;
  }
  
  .feature-item {
    padding: 24px 30px;
    border-top: 1px solid var(--white-faint);
  }
  
  .feature-item:first-child {
    border-top: 0;
  }
  
  .feature-item h2 {
    margin: 0 0 10px;
    font-size: clamp(18px, 3vw, 22px);
    line-height: 1.3;
    font-weight: 700;
    color: var(--white);
  }
  
  .feature-item p {
    margin: 0;
    font-size: 16px;
    line-height: 1.9;
    color: var(--white);
  }

  @media (max-width: 900px) {
    .page-shell {
        padding-top: 0;
    }

    .page-content {
        padding: 0 18px;
    }

    .container {
      width: min(100% - 32px, 1180px);
    }
  
    .page-subtitle {
      margin-top: 15px;
      padding: 0 20px;
      font-size: clamp(18px, 4.6vw, 30px);
      line-height: 1.42;
    }
  
    .roadmap-grid {
      gap: 20px;
    }
  
    .card-header {
      padding: 22px 18px 16px;
    }
  
    .feature-item {
      padding: 18px;
    }
  
    .feature-item p {
      font-size: 15px;
      line-height: 1.8;
    }
  }