/* =========================================================
   Design tokens
========================================================= */
:root {
    --bg: #050816;
    --bg-soft: #070b1f;
    --text: #e6e9f2;
    --muted: #9aa3b2;
  
    --accent: #7c83ff;
    --accent-soft: rgba(124, 131, 255, 0.15);
  
    --border: rgba(255, 255, 255, 0.08);
  }
  
  /* =========================================================
     Base
  ========================================================= */
  * {
    box-sizing: border-box;
  }
  
  body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
    color: var(--text);
    line-height: 1.6;
    background:
      radial-gradient(900px 500px at 20% -10%, rgba(124,131,255,0.14), transparent 45%),
      radial-gradient(600px 400px at 80% 10%, rgba(99,102,241,0.08), transparent 40%),
      var(--bg);
  }
  
  /* =========================================================
     Layout
  ========================================================= */
  .wrap {
    max-width: 1000px;
    margin: 0 auto;
    padding: 96px 24px;
  }
  
  section {
    margin-bottom: 120px;
  }
  
  /* =========================================================
     Header / Navigation
  ========================================================= */
  header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 10;
    background: rgba(5, 8, 22, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
  }
  
  .nav {
    max-width: 1000px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  
  .brand {
    font-weight: 600;
    letter-spacing: 0.2px;
  }
  
  /* =========================================================
     Typography
  ========================================================= */
  h1 {
    font-size: clamp(36px, 5vw, 56px);
    line-height: 1.15;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
  }
  
  h2 {
    font-size: 28px;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
  }
  
  p {
    max-width: 720px;
    font-size: 18px;
    color: var(--muted);
  }
  
  /* =========================================================
     Buttons
  ========================================================= */
  .btn {
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: #fff;
    text-decoration: none;
    border: 1px solid rgba(124,131,255,0.6);
    background: linear-gradient(180deg, #7c83ff, #6366f1);
    box-shadow: 0 8px 24px rgba(99,102,241,0.25);
    cursor: pointer;
  }
  
  /* =========================================================
     Forms
  ========================================================= */
  input {
    width: 260px;
    padding: 12px 14px;
    font-size: 16px;
    border-radius: 8px;
    color: var(--text);
    background: var(--bg-soft);
    border: 1px solid rgba(255,255,255,0.12);
    margin-right: 8px;
  }
  
  /* =========================================================
     Slider
  ========================================================= */
  .slider {
    position: relative;
    margin-top: 48px;
    overflow: hidden;
    border-radius: 28px;
    border: 1px solid var(--border);
    background: linear-gradient(
      180deg,
      rgba(255,255,255,0.04),
      rgba(255,255,255,0.01)
    );
  }
  
  .slides {
    display: flex;
    transition: transform 0.8s ease;
  }
  
  .slide {
    position: relative;
    min-width: 100%;
  }
  
  .slide img {
    width: 100%;
    height: 420px;
    object-fit: cover;
    display: block;
    opacity: 0.9;
  }
  
  .slide::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
      180deg,
      transparent 30%,
      rgba(5,8,22,0.85)
    );
  }
  
  /* Slide content */
  .slide-content {
    position: absolute;
    bottom: 32px;
    left: 32px;
    max-width: 560px;
    padding: 22px 26px;
    border-radius: 18px;
    background: rgba(5,8,22,0.65);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
  }
  
  .slide-content h3 {
    margin: 0 0 6px;
    font-size: 22px;
    color: #fff;
  }
  
  .slide-content p {
    margin: 0;
    font-size: 16px;
  }
  
  /* =========================================================
     Slider controls
  ========================================================= */
  .slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    font-size: 22px;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
  
    background: rgba(5,8,22,0.6);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.12);
    transition: all 0.2s ease;
  }
  
  .slider-btn:hover {
    background: rgba(124,131,255,0.2);
    border-color: rgba(124,131,255,0.5);
  }
  
  .slider-btn.prev { left: 16px; }
  .slider-btn.next { right: 16px; }
  
  /* =========================================================
     Footer
  ========================================================= */
  footer {
    padding: 48px 24px;
    font-size: 14px;
    text-align: center;
    color: var(--muted);
    border-top: 1px solid var(--border);
  }
  
  /* =========================================================
     Responsive
  ========================================================= */
  @media (max-width: 640px) {
    header {
      position: static;
    }
  
    .wrap {
      padding-top: 48px;
    }
  
    h1 {
      font-size: 34px;
    }
  
    .slide-content {
      left: 16px;
      right: 16px;
      bottom: 16px;
    }
  
    .slider-btn {
      width: 38px;
      height: 38px;
      font-size: 18px;
    }
  }