:root {
      --bg-start: #1b1d20;   /* deep graphite */
      --bg-end: #0a0b0c;     /* obsidian */
      --accent: #86b5ff;
      --iridescent: linear-gradient(90deg, #5fffd2, #6aa0ff, #b78cff, #7de388);
    }
    * { box-sizing: border-box; }
    html, body { height: 100%; margin: 0; }
    body {
      font-family: ui-serif, 'Times New Roman', Georgia, serif;
      background: radial-gradient(1200px 600px at 70% 20%, rgba(255,255,255,0.06), transparent 60%),
                  linear-gradient(180deg, var(--bg-start), var(--bg-end));
      color: #e8eaed;
      overflow-x: hidden;
    }
    /* Responsive grid hero */
    .hero {
      display: grid;
      grid-template-columns: 1.5fr 1fr;
      gap: clamp(16px, 4vw, 48px);
      min-height: 100vh;
      align-items: center;
      padding: clamp(16px, 4vw, 48px);
    }
    @media (max-width: 1200px) {
      .hero { grid-template-columns: 1fr; padding-top: 24px; }
    }
    /* Masthead */
    .masthead {
      position: fixed;
      top: 18px;
      left: 32px;
      right: 32px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      mix-blend-mode: screen;
      z-index: 20;
      pointer-events: none;
    }
    .logo {
      font-size: clamp(20px, 4vw, 40px);
      letter-spacing: 0.18em;
      font-weight: 500;
      line-height: 1;
      color: transparent;
      background: var(--iridescent);
      -webkit-background-clip: text;
              background-clip: text;
      text-shadow: 0 1px 0 rgba(255,255,255,0.06);
      filter: drop-shadow(0 4px 18px rgba(108, 183, 255, 0.12));
    }
    .issue {
      font-size: clamp(10px, 1.4vw, 14px);
      letter-spacing: .35em;
      opacity: .75;
    }
    /* Image panel */
    .panel {
      position: relative;
      aspect-ratio: 21 / 9;
      width: 100%;
      border-radius: 18px;
      overflow: hidden;
      background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0));
      box-shadow:
        0 60px 120px rgba(0,0,0,.65),
        inset 0 1px 0 rgba(255,255,255,0.06),
        inset 0 -1px 0 rgba(0,0,0,0.35);
    }
    .panel img {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      object-fit: cover;
      object-position: 50% 55%;
      filter: saturate(1.05) contrast(1.06) brightness(1.02);
      transform: scale(1.01);
    }
    /* Copy column */
    .copy h2 {
      font-size: clamp(32px, 6vw, 72px);
      margin: 0 0 12px 0;
      line-height: .98;
      letter-spacing: .02em;
    }
    .copy .tagline {
      margin-top: 6px;
      font-size: clamp(14px, 1.6vw, 18px);
      letter-spacing: .35em;
      text-transform: uppercase;
      opacity: .82;
    }
    .copy p {
      font-size: clamp(14px, 1.7vw, 18px);
      opacity: .9;
      max-width: 60ch;
    }
    .cta-row {
      margin-top: 24px;
      display: flex;
      gap: 12px;
      flex-wrap: wrap;
    }
    .btn {
      appearance: none;
      border: 0;
      padding: 14px 20px;
      border-radius: 999px;
      font-size: 14px;
      letter-spacing: .2em;
      text-transform: uppercase;
      cursor: pointer;
      transition: transform .18s ease, box-shadow .18s ease, opacity .18s ease;
    }
    .btn.primary {
      background: #0a0b0c;
      color: #eaf2ff;
      box-shadow: 0 10px 30px rgba(112, 182, 255, .20), inset 0 1px 0 rgba(255,255,255,.08);
      outline: 1px solid rgba(134, 181, 255, .35);
    }
    .btn.secondary {
      background: transparent;
      color: #b8c4d9;
      outline: 1px solid rgba(255,255,255,.18);
      box-shadow: inset 0 1px 0 rgba(255,255,255,.06);
    }
    .btn:hover { transform: translateY(-2px); }
    footer {
      padding: 28px clamp(16px, 4vw, 48px);
      opacity: .6;
      letter-spacing: .25em;
      text-transform: uppercase;
      font-size: 12px;
    }