:root {
      --bg-void: #0a0e1a;
      --bg-panel: #10152a;
      --bg-panel-alt: #161c38;
      --accent-ember: #f0a030;
      --accent-flare: #e6503f;
      --accent-rust: #a3714a;
      --ink-bright: #dce6f5;
      --ink-dim: #94a1c4;
      --line-dash: #3a4568;
      --font-display: 'Press Start 2P', 'Courier New', monospace;
      --font-body: 'Space Mono', 'Courier New', ui-monospace, monospace;
      box-sizing: border-box;
      padding-top: env(safe-area-inset-top, 0px);
      padding-bottom: env(safe-area-inset-bottom, 0px);
  }

  @media (prefers-color-scheme: dark) {
      :root:not([data-theme="light"]) {
          --bg-void: #0a0e1a;
          --bg-panel: #10152a;
          --bg-panel-alt: #161c38;
          --accent-ember: #f0a030;
          --accent-flare: #e6503f;
          --accent-rust: #a3714a;
          --ink-bright: #dce6f5;
          --ink-dim: #94a1c4;
          --line-dash: #3a4568;
      }
  }

  :root[data-theme="dark"] {
      --bg-void: #0a0e1a;
      --bg-panel: #10152a;
      --bg-panel-alt: #161c38;
      --accent-ember: #f0a030;
      --accent-flare: #e6503f;
      --accent-rust: #a3714a;
      --ink-bright: #dce6f5;
      --ink-dim: #94a1c4;
      --line-dash: #3a4568;
  }

  * {
      box-sizing: border-box;
  }

  html {
      scroll-behavior: smooth;
      scroll-padding-top: calc(64px + env(safe-area-inset-top, 0px));
  }

  body {
      margin: 0;
      background:
          radial-gradient(ellipse 80% 50% at 50% 0%, rgba(30, 38, 72, 0.55), transparent 60%),
          var(--bg-void);
      color: var(--ink-bright);
      font-family: var(--font-body);
      line-height: 1.6;
      overflow-x: hidden;
  }

  body::after {
      content: "";
      position: fixed;
      inset: 0;
      pointer-events: none;
      z-index: 999;
      background: repeating-linear-gradient(to bottom, rgba(255, 255, 255, 0.025) 0px, rgba(255, 255, 255, 0.025) 1px, transparent 1px, transparent 3px);
      mix-blend-mode: overlay;
  }

  a {
      color: var(--accent-ember);
  }

  :focus-visible {
      outline: 2px solid var(--accent-ember);
      outline-offset: 3px;
  }

  img {
      max-width: 100%;
      display: block;
  }

  .container {
      max-width: 880px;
      margin: 0 auto;
      padding: 0 24px;
  }

  .wide {
      max-width: 980px;
  }

  /* nav */
  header.topbar {
      position: sticky;
      top: env(safe-area-inset-top, 0px);
      z-index: 100;
      background: rgba(10, 14, 26, 0.86);
      backdrop-filter: blur(6px);
      border-bottom: 1px solid var(--line-dash);
  }

  .topbar-inner {
      max-width: 980px;
      margin: 0 auto;
      padding: 14px 24px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      flex-wrap: wrap;
  }

  .wordmark {
      font-family: var(--font-display);
      font-size: 12px;
      color: var(--ink-bright);
      text-decoration: none;
      letter-spacing: 1px;
      display: flex;
      align-items: center;
      gap: 8px;
  }

  nav.links {
      display: flex;
      gap: 20px;
      flex-wrap: wrap;
      font-size: 13px;
  }

  nav.links a {
      color: var(--ink-dim);
      text-decoration: none;
  }

  nav.links a:hover {
      color: var(--accent-ember);
  }

  /* language switcher */
  .lang-switch {
      position: relative;
  }

  .lang-toggle {
      background: transparent;
      border: 1px solid var(--line-dash);
      color: var(--ink-bright);
      font-family: var(--font-body);
      font-size: 14px;
      padding: 6px 10px;
      border-radius: 0;
      display: inline-flex;
      align-items: center;
      gap: 6px;
      cursor: pointer;
  }

  .lang-toggle:hover {
      border-color: var(--accent-ember);
  }

  .lang-caret {
      font-size: 10px;
      color: var(--ink-dim);
  }

  .lang-menu {
      position: absolute;
      top: calc(100% + 6px);
      right: 0;
      z-index: 200;
      background: var(--bg-panel);
      border: 1px solid var(--line-dash);
      min-width: 150px;
      display: flex;
      flex-direction: column;
  }

  .lang-menu[hidden] {
      display: none;
  }

  .lang-option {
      background: transparent;
      border: none;
      color: var(--ink-bright);
      font-family: var(--font-body);
      font-size: 13px;
      padding: 10px 12px;
      text-align: left;
      cursor: pointer;
      display: flex;
      align-items: center;
      gap: 8px;
      width: 100%;
  }

  .lang-option:hover {
      background: var(--bg-panel-alt);
      color: var(--accent-ember);
  }

  .lang-option[aria-current="true"] {
      color: var(--accent-ember);
  }

  /* hero */
  .hero {
      position: relative;
      padding: 88px 24px 72px;
      text-align: center;
      overflow: hidden;
  }

  .hero canvas {
      position: absolute;
      inset: 0;
      width: 100%;
      height: 100%;
      z-index: 0;
  }

  .hero-content {
      position: relative;
      z-index: 1;
  }

  .hero h1 {
      font-family: var(--font-display);
      font-size: clamp(1.9rem, 5vw + 1rem, 3.4rem);
      letter-spacing: 3px;
      margin: 0 0 22px;
      color: var(--ink-bright);
      text-shadow: 0 0 18px rgba(240, 160, 48, 0.35), 0 0 2px rgba(220, 230, 245, 0.4);
  }

  .hero p.tagline {
      font-size: clamp(1rem, 1vw + 0.9rem, 1.2rem);
      max-width: 540px;
      margin: 0 auto 10px;
      color: var(--ink-bright);
  }

  .hero p.subtagline {
      color: var(--ink-dim);
      max-width: 480px;
      margin: 0 auto 34px;
      font-size: 0.95rem;
  }

  .cta-row {
      display: flex;
      gap: 16px;
      justify-content: center;
      flex-wrap: wrap;
      margin-bottom: 28px;
  }

  .btn {
      font-family: var(--font-body);
      font-weight: 700;
      font-size: 0.95rem;
      padding: 13px 22px;
      text-decoration: none;
      border-radius: 0;
      border: 3px solid var(--accent-ember);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      cursor: pointer;
      background: transparent;
      color: var(--accent-ember);
      transition: transform 0.12s ease;
  }

  .btn:hover {
      transform: translateY(-2px);
  }

  .btn:active {
      transform: translateY(0);
  }

  .btn-primary {
      background: var(--accent-ember);
      color: var(--bg-void);
  }

  .btn-outline {
      border-color: var(--ink-dim);
      color: var(--ink-bright);
  }

  .btn-outline:hover {
      border-color: var(--accent-ember);
      color: var(--accent-ember);
  }

  .terminal-line {
      font-size: 0.85rem;
      color: var(--ink-dim);
      display: inline-flex;
      gap: 2px;
      align-items: baseline;
  }

  .cursor {
      display: inline-block;
      width: 8px;
      background: var(--accent-ember);
      margin-left: 2px;
      animation: blink 1s steps(1) infinite;
  }

  @keyframes blink {

      0%,
      49% {
          opacity: 1;
      }

      50%,
      100% {
          opacity: 0;
      }
  }

  @media (prefers-reduced-motion:reduce) {
      .cursor {
          animation: none;
          opacity: 1;
      }
  }

  .pill {
      display: inline-block;
      margin-top: 24px;
      font-size: 0.7rem;
      color: var(--ink-dim);
      border: 1px solid var(--line-dash);
      padding: 4px 10px;
      letter-spacing: 1px;
  }

  .inline-code {
      font-family: var(--font-body);
      background: var(--bg-panel);
      border: 1px solid var(--line-dash);
      padding: 2px 7px;
      font-size: 0.85em;
      color: var(--accent-ember);
  }

  /* dashed divider — echoes the in-game phase-break line */
  .divider {
      border: none;
      border-top: 2px dashed var(--line-dash);
      margin: 0;
  }

  section {
      padding: 64px 0;
  }

  .section-label {
      font-size: 0.8rem;
      color: var(--accent-ember);
      margin: 0 0 14px;
      font-weight: 700;
  }

  h2 {
      font-size: clamp(1.3rem, 1.4vw + 1rem, 1.7rem);
      margin: 0 0 18px;
      color: var(--ink-bright);
  }

  section p {
      color: var(--ink-bright);
      max-width: 74ch;
  }

  section p+p {
      margin-top: 14px;
  }

  .dim {
      color: var(--ink-dim);
  }

  .note {
      color: var(--ink-dim);
      font-size: 0.9rem;
  }

  /* features */
  .features-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 28px 32px;
      margin-top: 8px;
  }

  .feature {
      display: flex;
      gap: 14px;
      align-items: flex-start;
  }

  .feature svg {
      flex: none;
      width: 30px;
      height: 30px;
      margin-top: 2px;
  }

  .feature h3 {
      margin: 0 0 4px;
      font-size: 1rem;
      color: var(--ink-bright);
  }

  .feature p {
      margin: 0;
      font-size: 0.9rem;
      color: var(--ink-dim);
  }

  @media (max-width:640px) {
      .features-grid {
          grid-template-columns: 1fr;
      }
  }

  /* crt screenshot frame */
  .crt-frame {
      background: var(--bg-panel);
      border: 1px solid var(--line-dash);
      padding: 14px;
      margin-top: 10px;
      position: relative;
  }

  .crt-frame .screen {
      position: relative;
      overflow: hidden;
      border: 1px solid #000;
  }

  .crt-frame .screen::after {
      content: "";
      position: absolute;
      inset: 0;
      background: repeating-linear-gradient(to bottom, rgba(0, 0, 0, 0.18) 0px, rgba(0, 0, 0, 0.18) 1px, transparent 1px, transparent 3px);
      pointer-events: none;
  }

  .crt-frame figcaption {
      margin-top: 12px;
      font-size: 0.82rem;
      color: var(--ink-dim);
      text-align: center;
  }

  figure {
      margin: 0;
  }

  /* downloads */
  .download-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
      margin-top: 8px;
  }

  .download-btn {
      border: 2px solid var(--line-dash);
      padding: 22px 14px;
      text-align: center;
      text-decoration: none;
      color: var(--ink-bright);
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
      transition: border-color 0.12s ease, transform 0.12s ease;
  }

  .download-btn:hover {
      border-color: var(--accent-ember);
      transform: translateY(-2px);
  }

  .download-btn svg {
      width: 34px;
      height: 34px;
  }

  .download-btn span.os {
      font-weight: 700;
  }

  .download-btn span.sub {
      font-size: 0.75rem;
      color: var(--ink-dim);
  }

  @media (max-width:640px) {
      .download-grid {
          grid-template-columns: 1fr;
      }
  }

  /* code block */
  .code-block {
      background: var(--bg-panel);
      border: 1px solid var(--line-dash);
      padding: 18px 20px;
      overflow-x: auto;
      font-size: 0.85rem;
      color: var(--ink-bright);
      margin: 18px 0;
  }

  .code-block .c1 {
      color: var(--ink-dim);
  }

  .links-row {
      display: flex;
      gap: 22px;
      flex-wrap: wrap;
      margin-top: 10px;
      font-size: 0.9rem;
  }

  .arch-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
      margin-top: 20px;
  }

  .arch-card {
      background: var(--bg-panel);
      border: 1px solid var(--line-dash);
      padding: 20px;
  }

  .arch-card h3 {
      margin: 0 0 10px;
      font-size: 0.95rem;
      color: var(--accent-ember);
  }

  .arch-card p {
      margin: 0;
      font-size: 0.9rem;
      color: var(--ink-bright);
  }

  @media (max-width:640px) {
      .arch-grid {
          grid-template-columns: 1fr;
      }
  }

  .roadmap-list {
      list-style: none;
      margin: 16px 0 0;
      padding: 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
  }

  .roadmap-list li {
      font-size: 0.95rem;
      display: flex;
      align-items: baseline;
      gap: 10px;
  }

  .status {
      font-family: var(--font-body);
      color: var(--line-dash);
      font-weight: 700;
  }

  .status.done {
      color: var(--accent-ember);
  }

  .status.active {
      color: var(--accent-flare);
  }

  footer {
      padding: 56px 0 48px;
  }

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

  .footer-credit p {
      margin: 0 0 6px;
      font-size: 0.9rem;
  }

  .footer-links {
      display: flex;
      gap: 18px;
      flex-wrap: wrap;
      font-size: 0.85rem;
  }

  .footer-links a {
      color: var(--ink-dim);
      text-decoration: none;
  }

  .footer-links a:hover {
      color: var(--accent-ember);
  }

  .copyright {
      margin-top: 34px;
      font-size: 0.78rem;
      color: var(--line-dash);
      text-align: center;
  }