:root {
      --bg: #0d1117;
      --surface: #161b22;
      --surface-alt: #1f2937;
      --text: #c9d1d9;
      --muted: #8b949e;
      --accent: #58a6ff;
      --accent-soft: rgba(88, 166, 255, 0.15);
      --border: rgba(148, 163, 184, 0.18);
      --shadow: 0 24px 50px rgba(0, 0, 0, 0.35);
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    body {
      min-height: 100vh;
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: radial-gradient(circle at top left, rgba(88, 166, 255, 0.2), transparent 28%),
                  radial-gradient(circle at bottom right, rgba(165, 180, 252, 0.16), transparent 24%),
                  var(--bg);
      color: var(--text);
      line-height: 1.6;
      padding: 32px;
    }

    .container {
      max-width: 1120px;
      margin: 0 auto;
      display: grid;
      position: relative;
      gap: 32px;
    }

    header {
      display: grid;
      gap: 16px;
      /* reduce vertical padding to 10px (top/bottom) per request */
      padding: 10px 200px 10px 32px;
      background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02));
      border: 1px solid var(--border);
      border-radius: 28px;
      box-shadow: var(--shadow);
      backdrop-filter: blur(18px);
    }

    header h1 {
      font-size: clamp(2.5rem, 4vw, 4rem);
      letter-spacing: -0.05em;
    }

    header p {
      max-width: 760px;
      color: var(--muted);
      font-size: 1.05rem;
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
      color: var(--muted);
    }

    /* Position the hero image to the right of the centered container without affecting layout */
    .hero-image {
      position: absolute;
      /* keep the image inside the .container, aligned to the right */
      right: 32px;
      top: 32px;
      width: 160px;
      height: auto;
      border-radius: 12px;
      box-shadow: 0 12px 30px rgba(0,0,0,0.45);
      pointer-events: none;
      user-select: none;
      z-index: 3;
    }

    .hero-meta span {
      padding: 10px 14px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.03);
    }

    .search-bar-wrap {
      display: flex;
      justify-content: center;
      margin-top: -8px;
    }

    .search-bar-wrap input {
      width: min(100%, 560px);
      padding: 14px 16px;
      border-radius: 999px;
      border: 1px solid var(--border);
      background: rgba(255, 255, 255, 0.04);
      color: var(--text);
      outline: none;
      box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
    }

    .search-bar-wrap input::placeholder {
      color: var(--muted);
    }

    .search-bar-wrap input:focus {
      border-color: rgba(88, 166, 255, 0.45);
      box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.16);
    }

    .slideshow-shell {
      display: grid;
      gap: 16px;
    }

    .slide {
      display: none;
      animation: fadeIn 0.25s ease;
    }

    .slide.active {
      display: block;
    }

    .slide-controls {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      padding-top: 8px;
    }

    .slide-arrow {
      border: 1px solid rgba(148, 163, 184, 0.18);
      background: rgba(255, 255, 255, 0.04);
      color: var(--text);
      width: 44px;
      height: 44px;
      border-radius: 999px;
      cursor: pointer;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .slide-arrow:hover {
      background: rgba(88, 166, 255, 0.15);
      transform: translateY(-1px);
    }

    .slide-dots {
      display: flex;
      align-items: center;
      gap: 10px;
      justify-content: center;
      flex: 1;
      flex-wrap: wrap;
    }

    .slide-dot {
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 1px solid rgba(148, 163, 184, 0.35);
      background: transparent;
      cursor: pointer;
      transition: background 0.2s ease, transform 0.2s ease;
    }

    .slide-dot.active {
      background: var(--accent);
      transform: scale(1.1);
      border-color: rgba(88, 166, 255, 0.65);
    }

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(10px); }
      to { opacity: 1; transform: translateY(0); }
    }

    .command-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: 24px;
      padding: 24px;
      box-shadow: 0 20px 40px rgba(0, 0, 0, 0.22);
      transition: transform 0.25s ease, border-color 0.25s ease;
    }

    .command-card:hover {
      transform: translateY(-6px);
      border-color: rgba(88, 166, 255, 0.4);
    }

    .command-card h2 {
      font-size: 1.3rem;
      margin-bottom: 12px;
      color: #ffffff;
    }

    .command-card p {
      color: var(--muted);
      margin-bottom: 18px;
    }

    .commands {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 14px;
      padding: 10px 12px;
      border: 1px solid rgba(148, 163, 184, 0.12);
      border-radius: 14px;
      background: rgba(255, 255, 255, 0.02);
    }

    .command {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 0.98rem;
      color: #ffffff;
      flex: 1;
    }

    .command strong {
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      padding: 8px 12px;
      border-radius: 12px;
      background: rgba(88, 166, 255, 0.12);
      color: var(--accent);
      border: 1px solid rgba(88, 166, 255, 0.2);
      white-space: nowrap;
    }

    .command small {
      color: var(--muted);
    }

    .copy-btn {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      border: 1px solid rgba(88, 166, 255, 0.25);
      background: rgba(88, 166, 255, 0.12);
      color: var(--accent);
      padding: 7px 10px;
      border-radius: 999px;
      font-size: 0.82rem;
      font-weight: 600;
      cursor: pointer;
      transition: background 0.2s ease, transform 0.2s ease;
      flex-shrink: 0;
    }

    .copy-btn:hover {
      background: rgba(88, 166, 255, 0.2);
      transform: translateY(-1px);
    }

    .copy-btn .copy-icon {
      font-size: 0.95rem;
      line-height: 1;
    }

    .copy-btn.copied {
      background: rgba(0, 189, 91, 0.2);
      color: #22c55e;
      border-color: rgba(34, 197, 94, 0.35);
    }

    .commands.is-hidden,
    .slide.is-hidden {
      display: none;
    }

    .terminal {
      background: #020409;
      border: 1px solid rgba(148, 163, 184, 0.15);
      padding: 22px;
      border-radius: 22px;
      font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
      color: #c9d1d9;
      overflow-x: auto;
    }

    .terminal code {
      display: block;
      white-space: pre;
    }

    .terminal .prompt {
      color: #00bd5b;
    }

    .colon {
      color: #ffffff;
    }

    .directory {
      color: #0080ff;
    }

    .dollar-sign {
      color: #ffffff;
    }

    .executable {
      color: #37ff00;
    }

    .mp3 {
      color: #00fff2;
    }

    .png {
      color: #c300ff;
    }

    .mp4 {
      color: #c300ff;
    }

    .footer {
      padding: 20px 0 8px;
      display: flex;
      justify-content: center;
      color: var(--muted);
      font-size: 0.95rem;
    }

    @media (max-width: 640px) {
      body {
        padding: 20px;
      }

      .card {
        padding: 20px;
      }
      /* hide decorative hero image on small screens so it doesn't overlap content */
      .hero-image {
        display: none;
      }
      /* restore header padding on small screens */
      header {
        padding-right: 32px;
      }
    }

    /* adjust image placement for medium screens */
    @media (max-width: 980px) {
      .hero-image {
        right: 28px;
        width: 120px;
        top: 20px;
      }
      header {
        padding-right: 180px;
      }
    }