@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/plus-jakarta-sans-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../assets/fonts/plus-jakarta-sans-latin-500-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../assets/fonts/plus-jakarta-sans-latin-600-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../assets/fonts/plus-jakarta-sans-latin-700-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Plus Jakarta Sans";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("../assets/fonts/plus-jakarta-sans-latin-800-normal.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../assets/fonts/jetbrains-mono-latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../assets/fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2");
}

@layer reset, base, theme, components, utilities;

@layer theme {
  :root {
    color-scheme: dark;
    interpolate-size: allow-keywords;

    /* Core surfaces anchored to Dengerin Desktop obsidian palette */
    --bg-canvas: #090A0E;
    --bg-surface: #12141C;
    --bg-elevated: #181A24;
    --bg-highlight: #212432;

    /* Verified WCAG AA+ text ramp */
    --text-primary: #F3F4F8;
    --text-secondary: #B6BCCB;
    --text-muted: #969DB2;

    /* Single deliberate Crimson accent system */
    --accent-fill: #CC1028;
    --accent-fill-hover: #B80E24;
    --accent-on-fill: #FFFFFF;
    --accent-text: #FF6B7E;
    --accent-surface: rgba(204, 16, 40, 0.14);
    --accent-border: #FF5C72;

    /* UI boundaries meeting 3:1 non-text contrast where interactive */
    --border-subtle: #272B3B;
    --border-interactive: #656E85;
    --focus-ring: #FF6B7E;

    /* Semantic release fetch states */
    --status-ok-bg: #0E241C;
    --status-ok-fg: #6EE7B7;
    --status-warn-bg: #241D0E;
    --status-warn-fg: #FDE68A;
    --status-err-bg: #291216;
    --status-err-fg: #FCA5A5;

    /* Typography */
    --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    /* Radii hierarchy (3 deliberate values) */
    --radius-control: 10px;
    --radius-panel: 16px;
    --radius-pill: 9999px;

    /* Layout & systemic z-index scale */
    --container-max: 76rem;
    --header-height: 3.75rem;
    --z-sticky: 20;
    --z-skip: 60;

    scrollbar-color: var(--bg-highlight) var(--bg-canvas);

    /* Controlled elevation (1 subtle backdrop dose on hero frame & header) */
    --shadow-frame: 0 22px 48px -12px rgba(0, 0, 0, 0.72);
    --ease-snappy: cubic-bezier(0.16, 1, 0.3, 1);
  }

  @media (forced-colors: active) {
    :root {
      --bg-canvas: Canvas;
      --bg-surface: Canvas;
      --bg-elevated: Canvas;
      --bg-highlight: ButtonFace;
      --text-primary: CanvasText;
      --text-secondary: CanvasText;
      --text-muted: GrayText;
      --accent-fill: Highlight;
      --accent-on-fill: HighlightText;
      --accent-text: LinkText;
      --border-subtle: CanvasText;
      --border-interactive: ButtonText;
      --focus-ring: Highlight;
    }

    .lang-btn[aria-pressed="true"] {
      background-color: Highlight;
      color: HighlightText;
      border-color: Highlight;
    }
  }
}

@layer reset {
  html {
    box-sizing: border-box;
  }

  @media (prefers-reduced-motion: no-preference) {
    html {
      scroll-behavior: smooth;
    }
  }

  :where(
    body, header, nav, main, section, article, aside, footer, dialog,
    div, ul, ol, li, dl, dt, dd, figure, figcaption, pre, code,
    details, summary, a, button, span, img, svg, p, h1, h2, h3
  ) {
    box-sizing: inherit;
  }

  :where(body, h1, h2, h3, p, ul, ol, dl, dd, figure, pre, blockquote) {
    margin: 0;
  }

  :where(ul, ol) {
    padding: 0;
    list-style: none;
  }

  :where(img, svg, picture) {
    display: block;
    max-inline-size: 100%;
  }

  button {
    font: inherit;
    color: inherit;
    background: none;
    border: 0;
    padding: 0;
  }
}

@layer base {
  body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-canvas);
    min-block-size: 100dvb;
    text-align: start;
    overflow-x: clip;
  }

  h1, h2, h3 {
    color: var(--text-primary);
    line-height: 1.15;
    letter-spacing: -0.025em;
    font-weight: 700;
    text-wrap: balance;
  }

  h1 {
    font-size: clamp(2.15rem, 1.35rem + 2.8vw, 3.35rem);
    font-weight: 800;
  }

  h2 {
    font-size: clamp(1.55rem, 1.15rem + 1.4vw, 2.25rem);
  }

  h3 {
    font-size: 1.125rem;
    letter-spacing: -0.01em;
  }

  p, li, dd {
    text-wrap: pretty;
  }

  a:any-link {
    color: inherit;
    text-decoration: none;
  }

  :where(a[href], button, summary, [role="tab"]):not(:disabled, [aria-disabled="true"]) {
    cursor: pointer;
  }

  :where(button, [role="tab"]):where(:disabled, [aria-disabled="true"]) {
    cursor: not-allowed;
  }

  :where(a:any-link, button, summary, [tabindex]):focus-visible {
    outline: 3px solid var(--focus-ring);
    outline-offset: 3px;
  }

  .btn-primary:focus-visible {
    outline-color: var(--text-primary);
  }

  :target,
  section[id] {
    scroll-margin-top: calc(var(--header-height) + 1.5rem);
  }

  code, pre {
    font-family: var(--font-mono);
  }

  ::selection {
    background-color: var(--accent-fill);
    color: var(--accent-on-fill);
  }

  @supports not (scrollbar-color: auto) {
    ::-webkit-scrollbar {
      width: 10px;
      height: 10px;
    }

    ::-webkit-scrollbar-track {
      background: var(--bg-canvas);
    }

    ::-webkit-scrollbar-thumb {
      background: var(--bg-highlight);
      border-radius: var(--radius-pill);
      border: 2px solid var(--bg-canvas);
    }

    ::-webkit-scrollbar-thumb:hover {
      background: var(--border-interactive);
    }
  }
}

@layer components {
  .container {
    inline-size: min(100% - 2rem, var(--container-max));
    margin-inline: auto;
  }

  @media (min-width: 48rem) {
    .container {
      inline-size: min(100% - 3rem, var(--container-max));
    }
  }

  .ui-icon {
    inline-size: 1.15em;
    block-size: 1.15em;
    flex: none;
  }

  /* Accessibility Skip Link */
  .skip-link {
    position: fixed;
    inset-block-start: 0.75rem;
    inset-inline-start: 0.75rem;
    z-index: var(--z-skip);
    padding: 0.65rem 1.1rem;
    border-radius: var(--radius-control);
    background-color: var(--accent-fill);
    color: var(--accent-on-fill);
    font-weight: 700;
    font-size: 0.9375rem;
  }

  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    min-block-size: 2.75rem;
    max-inline-size: 100%;
    padding-block: 0.65rem;
    padding-inline: clamp(0.95rem, 3vw, 1.35rem);
    border-radius: var(--radius-pill);
    font-weight: 600;
    font-size: 0.9375rem;
    line-height: 1.25;
    text-align: center;
    transition:
      background-color 160ms var(--ease-snappy),
      border-color 160ms var(--ease-snappy),
      transform 140ms var(--ease-snappy);
  }

  .btn:active:not(:disabled) {
    transform: translateY(1px);
  }

  .btn-primary {
    background-color: var(--accent-fill);
    color: var(--accent-on-fill);
    border: 1px solid transparent;
  }

  .btn-primary:hover:not(:disabled) {
    background-color: var(--accent-fill-hover);
  }

  .btn-secondary {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-interactive);
  }

  .btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-highlight);
    border-color: var(--text-secondary);
  }

  .btn-compact {
    min-block-size: 2.75rem;
    padding-inline: 1rem;
    border-radius: var(--radius-control);
    font-size: 0.875rem;
  }

  @media (prefers-reduced-motion: reduce) {
    .btn {
      transition: none;
    }
    .btn:active:not(:disabled) {
      transform: none;
    }
  }

  /* Compact Single-Row Sticky Header */
  .site-header {
    position: sticky;
    inset-block-start: 0;
    z-index: var(--z-sticky);
    min-block-size: var(--header-height);
    background-color: rgba(9, 10, 14, 0.86);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-block-end: 1px solid var(--border-subtle);
  }

  @media (prefers-reduced-transparency: reduce) {
    .site-header {
      background-color: var(--bg-surface);
      backdrop-filter: none;
      -webkit-backdrop-filter: none;
    }
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    min-block-size: var(--header-height);
  }

  .brand-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    min-block-size: 2rem;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: -0.02em;
    flex-shrink: 0;
  }

  .brand-link::after {
    content: "";
    position: absolute;
    inset-block: -0.375rem;
    inset-inline: 0;
  }

  .brand-mark {
    inline-size: 1.75rem;
    block-size: 1.75rem;
    border-radius: 7px;
  }

  .desktop-nav {
    display: none;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 0.625rem;
  }

  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-block-size: 2rem;
    padding-inline: 0.65rem;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 150ms ease, background-color 150ms ease;
  }

  .nav-link::after {
    content: "";
    position: absolute;
    inset-block: -0.375rem;
    inset-inline: 0;
  }

  .nav-link:hover {
    color: var(--text-primary);
    background-color: var(--bg-elevated);
  }

  .lang-switch {
    display: inline-flex;
    align-items: center;
    gap: 0.125rem;
    background-color: #0D0F15;
    border: 1px solid #5C657D;
    border-radius: 8px;
    padding: 0.125rem;
  }

  .lang-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-inline-size: 1.875rem;
    min-block-size: 1.625rem;
    padding-inline: 0.45rem;
    border: 1px solid transparent;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1;
    color: var(--text-muted);
    transition: color 140ms ease, background-color 140ms ease, border-color 140ms ease;
  }

  .lang-btn::after {
    content: "";
    position: absolute;
    inset-block: -0.5625rem;
    inset-inline: 0;
  }

  .lang-btn:hover {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.04);
  }

  .lang-btn:focus-visible {
    outline-offset: 2px;
  }

  .lang-btn[aria-pressed="true"] {
    background-color: #262A38;
    border-color: #6E7791;
    color: var(--text-primary);
  }

  .github-header-link {
    display: none;
    position: relative;
    min-block-size: 2rem;
    padding-block: 0.35rem;
    padding-inline: 0.75rem;
    gap: 0.4rem;
    border-radius: 8px;
    border-color: #5C657D;
    font-size: 0.8125rem;
  }

  .github-header-link::after {
    content: "";
    position: absolute;
    inset-block: -0.375rem;
    inset-inline: 0;
  }

  .drawer-trigger {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-inline-size: 2rem;
    min-block-size: 2rem;
    border-radius: 8px;
    border: 1px solid #5C657D;
    background-color: var(--bg-surface);
    color: var(--text-primary);
  }

  .drawer-trigger::after {
    content: "";
    position: absolute;
    inset: -0.375rem;
  }

  .drawer-trigger:hover {
    background-color: var(--bg-elevated);
  }

  @media (pointer: coarse) {
    .lang-btn {
      min-inline-size: 2rem;
      min-block-size: 1.75rem;
    }

    .lang-btn::after {
      inset-block: -0.5rem;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .lang-btn {
      transition: none;
    }
  }

  @media (min-width: 56rem) {
    .header-inner {
      gap: 1rem;
    }

    .desktop-nav {
      display: flex;
      align-items: center;
      gap: 0.35rem;
    }

    .desktop-nav ul {
      display: flex;
      align-items: center;
      gap: 0.15rem;
    }

    .github-header-link {
      display: inline-flex;
    }

    .drawer-trigger {
      display: none;
    }
  }

  /* Native Top-Layer Mobile Navigation Drawer (modern-web-guidance: navigation-drawer) */
  .nav-drawer {
    --drawer-width: min(20rem, 80dvw);
    --drawer-backdrop: 0;
    position: fixed;
    inset: 0;
    margin: 0;
    padding: 0;
    inline-size: 100dvw;
    block-size: 100svh;
    max-inline-size: none;
    max-block-size: none;
    background: transparent;
    border: 0;
    overflow: visible;
  }

  .nav-drawer::backdrop {
    background: #000000;
    opacity: calc(var(--drawer-backdrop) * 0.65);
  }

  .nav-drawer-scroller {
    position: relative;
    display: grid;
    grid-template-columns: var(--drawer-width) 100%;
    inline-size: 100%;
    block-size: 100%;
    overflow-x: scroll;
    overscroll-behavior: none;
    scrollbar-width: none;
    scroll-snap-type: x mandatory;
  }

  @media (prefers-reduced-motion: no-preference) {
    .nav-drawer-scroller {
      scroll-behavior: smooth;
    }
  }

  .nav-drawer-scroller::after {
    content: "";
    scroll-snap-align: end;
    scroll-initial-target: nearest;
  }

  .nav-drawer-sheet {
    display: grid;
    grid-template-rows: auto 1fr auto;
    block-size: 100svh;
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border-inline-end: 1px solid var(--border-subtle);
    padding: 1.25rem;
    overflow-y: auto;
    scroll-snap-align: start;
    scrollbar-width: none;
    gap: 1.5rem;
  }

  .nav-drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }

  .nav-drawer-list {
    display: grid;
    gap: 0.4rem;
    align-content: start;
  }

  .nav-drawer-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-block-size: 3rem;
    padding-inline: 0.85rem;
    border-radius: var(--radius-control);
    font-weight: 600;
    color: var(--text-secondary);
  }

  .nav-drawer-list a:hover {
    background-color: var(--bg-elevated);
    color: var(--text-primary);
  }

  @supports (animation-timeline: scroll()) {
    .nav-drawer {
      timeline-scope: --drawer-fade;
      animation: fade-drawer-backdrop linear both;
      animation-timeline: --drawer-fade;
    }

    .nav-drawer-scroller {
      scroll-timeline: --drawer-fade x;
    }

    @property --drawer-backdrop {
      syntax: "<number>";
      inherits: true;
      initial-value: 0;
    }

    @keyframes fade-drawer-backdrop {
      0% {
        --drawer-backdrop: 1;
      }
      100% {
        --drawer-backdrop: 0;
      }
    }
  }

  /* Section 1: Asymmetric Split Hero */
  .hero-section {
    padding-block: clamp(2.5rem, 5vw, 4.75rem) clamp(3rem, 5.5vw, 5.5rem);
  }

  .hero-grid {
    display: grid;
    gap: clamp(2rem, 4vw, 3.75rem);
    align-items: center;
  }

  @media (min-width: 60rem) {
    .hero-grid {
      grid-template-columns: minmax(0, 1.08fr) minmax(0, 1.12fr);
    }
  }

  .hero-copy {
    display: grid;
    gap: 1.35rem;
    min-inline-size: 0;
  }

  .hero-lead {
    color: var(--text-secondary);
    font-size: clamp(1.03125rem, 0.96rem + 0.35vw, 1.1875rem);
    line-height: 1.6;
    max-inline-size: 50ch;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-block-start: 0.35rem;
  }

  .hero-actions .btn {
    padding-inline: clamp(0.9rem, 2vw, 1.2rem);
  }

  @media (max-width: 30rem) {
    .hero-actions {
      display: grid;
    }

    .hero-actions .btn {
      inline-size: 100%;
    }
  }

  .hero-media {
    display: grid;
    gap: 0.55rem;
    min-inline-size: 0;
  }

  .media-frame {
    position: relative;
    display: block;
    inline-size: 100%;
    aspect-ratio: 1024 / 682;
    border-radius: var(--radius-panel);
    border: 1px solid var(--border-subtle);
    background-color: var(--bg-surface);
    overflow: hidden;
    box-shadow: var(--shadow-frame);
  }

  .media-frame picture {
    inline-size: 100%;
    block-size: 100%;
  }

  .media-frame img {
    inline-size: 100%;
    block-size: 100%;
    aspect-ratio: 1024 / 682;
    object-fit: cover;
  }

  .hero-media-caption {
    display: inline-flex;
    align-items: center;
    justify-self: end;
    gap: 0.4rem;
    color: var(--text-muted);
    font-size: 0.84375rem;
    cursor: pointer;
    transition: color 160ms var(--ease-snappy);
  }

  .hero-media:has(.shot-hero-btn:hover, .shot-hero-btn:focus-visible) .hero-media-caption,
  .hero-media-caption:hover {
    color: var(--text-primary);
  }

  .shot-trigger {
    position: relative;
    display: block;
    inline-size: 100%;
    overflow: hidden;
    text-align: start;
    transition: border-color 160ms var(--ease-snappy);
  }

  .shot-trigger:hover {
    border-color: var(--border-interactive);
  }

  @media (prefers-reduced-motion: reduce) {
    .shot-trigger,
    .hero-media-caption,
    .shot-zoom-hint {
      transition: none;
    }
  }

  /* Section Spacing & Shared Headers */
  .band {
    padding-block: clamp(3.25rem, 5.5vw, 5.5rem);
    border-block-start: 1px solid var(--border-subtle);
  }

  .band-surface {
    background-color: var(--bg-surface);
  }

  .section-head {
    display: grid;
    gap: 0.75rem;
    max-inline-size: 42rem;
    margin-block-end: clamp(1.75rem, 3vw, 2.75rem);
  }

  .section-kicker {
    color: var(--accent-text);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .section-desc {
    color: var(--text-secondary);
    font-size: 1rem;
  }

  /* Section 2: Download Hub with Container Query Adaptation */
  .download-hub-wrap {
    container: download-hub / inline-size;
  }

  .release-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.95rem 1.25rem;
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-panel) var(--radius-panel) 0 0;
    border-block-end: 0;
  }

  .release-status-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    min-inline-size: 0;
  }

  .status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.32rem 0.7rem;
    border-radius: var(--radius-pill);
    font-size: 0.8125rem;
    font-weight: 600;
  }

  .status-pill[data-state="loading"] {
    background-color: var(--status-warn-bg);
    color: var(--status-warn-fg);
  }

  .status-pill[data-state="ready"] {
    background-color: var(--status-ok-bg);
    color: var(--status-ok-fg);
  }

  .status-pill[data-state="fallback"] {
    background-color: var(--status-err-bg);
    color: var(--status-err-fg);
  }

  .status-dot {
    inline-size: 0.5rem;
    block-size: 0.5rem;
    border-radius: 50%;
    background-color: currentColor;
    flex: none;
  }

  .release-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.84375rem;
    color: var(--text-secondary);
  }

  .release-meta-item {
    white-space: nowrap;
  }

  .release-meta-item + .release-meta-item::before {
    content: "|";
    margin-inline-end: 0.75rem;
    color: var(--border-interactive);
  }

  @media (max-width: 36rem) {
    .release-meta-item + .release-meta-item::before {
      content: none;
    }
  }

  .platform-panel {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 0 0 var(--radius-panel) var(--radius-panel);
    padding: clamp(1.25rem, 2.5vw, 2.1rem);
    display: grid;
    gap: 1.75rem;
  }

  .platform-tablist {
    display: flex;
    flex-wrap: wrap;
    flex-wrap: balance;
    gap: 0.55rem;
  }

  .platform-tab {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    min-block-size: 2.75rem;
    padding: 0.55rem 1.05rem;
    border-radius: var(--radius-control);
    border: 1px solid var(--border-interactive);
    background-color: var(--bg-surface);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: background-color 140ms ease, border-color 140ms ease, color 140ms ease;
  }

  @media (max-width: 36rem) {
    .platform-tablist {
      display: grid;
      grid-template-columns: 1fr;
    }

    .platform-tab {
      inline-size: 100%;
      justify-content: flex-start;
    }

    .platform-tab .detected-tag {
      margin-inline-start: auto;
    }
  }

  .platform-tab:hover {
    color: var(--text-primary);
    background-color: var(--bg-highlight);
  }

  .platform-tab[aria-selected="true"] {
    background-color: var(--accent-surface);
    border-color: var(--accent-border);
    color: var(--text-primary);
  }

  .detected-tag {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-text);
  }

  .platform-body {
    display: grid;
    gap: 1.5rem;
    align-items: start;
  }

  @container download-hub (inline-size > 46rem) {
    .platform-body {
      grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    }
  }

  .artifact-list {
    display: grid;
    gap: 0.9rem;
    min-inline-size: 0;
  }

  .artifact-card {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.1rem 1.2rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-control);
    min-inline-size: 0;
  }

  .artifact-card.is-recommended {
    border-color: var(--accent-border);
  }

  .artifact-info {
    display: grid;
    gap: 0.25rem;
    min-inline-size: 0;
  }

  .artifact-title {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
  }

  .artifact-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
  }

  .artifact-sub {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-muted);
    overflow-wrap: anywhere;
  }

  .platform-notes {
    padding: 1.2rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-control);
    display: grid;
    gap: 0.75rem;
    min-inline-size: 0;
  }

  .platform-notes h3 {
    font-size: 1rem;
  }

  .platform-notes p {
    font-size: 0.9375rem;
    color: var(--text-secondary);
  }

  .platform-notes ul {
    display: grid;
    gap: 0.45rem;
    padding-inline-start: 1.1rem;
    list-style: disc;
    color: var(--text-secondary);
    font-size: 0.9rem;
  }

  .error-banner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.85rem;
    padding: 0.9rem 1.1rem;
    background-color: var(--status-err-bg);
    color: var(--status-err-fg);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-control);
    font-size: 0.9rem;
  }

  .error-banner-lead {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex: 1 1 18rem;
    min-inline-size: 0;
  }

  /* Section 3: Desktop Screenshots Showcase & Lightbox */
  .gallery-grid {
    display: grid;
    gap: 1.35rem;
  }

  @media (min-width: 48rem) {
    .gallery-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  .shot-card {
    display: grid;
    grid-template-rows: auto 1fr;
    align-content: start;
    gap: 0.9rem;
    padding: 0.95rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-panel);
    min-inline-size: 0;
  }

  .shot-frame {
    aspect-ratio: 1024 / 682;
    border-radius: var(--radius-control);
    border: 1px solid var(--border-subtle);
    background-color: var(--bg-canvas);
  }

  .shot-frame picture,
  .shot-frame img {
    inline-size: 100%;
    block-size: 100%;
    object-fit: cover;
  }

  .shot-meta {
    display: grid;
    gap: 0.35rem;
    align-content: start;
    padding-inline: 0.25rem;
    min-inline-size: 0;
  }

  .shot-meta-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
  }

  .shot-zoom-hint {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    flex-shrink: 0;
    color: var(--text-muted);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: color 160ms var(--ease-snappy);
  }

  .shot-card:has(.shot-trigger:hover, .shot-trigger:focus-visible) .shot-zoom-hint,
  .shot-zoom-hint:hover {
    color: var(--text-primary);
  }

  .shot-caption {
    color: var(--text-secondary);
    font-size: 0.9375rem;
  }

  .miniplayer-spotlight {
    margin-block-start: 1.5rem;
    padding: clamp(1.25rem, 2.5vw, 1.85rem);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-panel);
    display: grid;
    gap: 1.5rem;
    align-items: center;
  }

  @media (min-width: 54rem) {
    .miniplayer-spotlight {
      grid-template-columns: minmax(0, 1.15fr) minmax(0, auto);
      justify-content: space-between;
    }
  }

  .miniplayer-copy {
    display: grid;
    gap: 0.75rem;
    max-inline-size: 36rem;
    min-inline-size: 0;
  }

  .shot-mini-frame {
    inline-size: min(100%, 27.5rem);
    padding: 0.65rem;
    border-radius: var(--radius-control);
    border: 1px solid var(--border-interactive);
    background-color: var(--bg-canvas);
    justify-self: start;
  }

  .shot-mini-frame picture {
    inline-size: 100%;
  }

  .shot-mini-frame img {
    inline-size: 100%;
    max-inline-size: 420px;
    block-size: auto;
    aspect-ratio: 420 / 175;
    border-radius: 6px;
  }

  /* Accessible Modal Lightbox (modern-web-guidance: dialog + light-dismiss-a-dialog + prevent-page-scroll-under-modal-dialog) */
  .lightbox-dialog {
    position: fixed;
    inset: 0;
    margin: auto;
    padding: 0;
    overflow: auto;
    inline-size: fit-content;
    min-inline-size: min(95dvw, 21rem);
    max-inline-size: min(96dvw, 68rem);
    max-block-size: 94dvb;
    border: 1px solid var(--border-interactive);
    border-radius: var(--radius-panel);
    background-color: var(--bg-surface);
    color: var(--text-primary);
    box-shadow: var(--shadow-frame);
  }

  @media (max-width: 40rem) {
    .lightbox-dialog {
      inline-size: 95dvw;
      max-inline-size: 95dvw;
    }
  }

  .lightbox-dialog:modal {
    overscroll-behavior: contain;
  }

  .lightbox-dialog::backdrop {
    background-color: rgba(5, 6, 9, 0.86);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    overflow: hidden;
    overscroll-behavior: contain;
  }

  @media (prefers-reduced-transparency: reduce) {
    .lightbox-dialog::backdrop {
      background-color: rgba(5, 6, 9, 0.95);
      backdrop-filter: none;
      -webkit-backdrop-filter: none;
    }
  }

  .lightbox-shell {
    display: grid;
    grid-template-rows: auto minmax(0, 1fr) auto;
    max-block-size: inherit;
    gap: clamp(0.6rem, 1.3vw, 0.9rem);
    padding: clamp(0.65rem, 1.6vw, 1.15rem);
  }

  .lightbox-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    inline-size: 0;
    min-inline-size: 100%;
  }

  .lightbox-head h3 {
    min-inline-size: 0;
    font-size: clamp(0.95rem, 0.88rem + 0.3vw, 1.125rem);
    line-height: 1.25;
  }

  .lightbox-stage {
    display: flex;
    align-items: center;
    justify-content: center;
    min-block-size: 0;
    inline-size: min(91dvw, 64rem, calc((92dvb - 10rem) * 1.5015));
    aspect-ratio: 1024 / 682;
    max-block-size: 100%;
    background-color: var(--bg-canvas);
    border-radius: calc(var(--radius-panel) - 6px);
    overflow: hidden;
    justify-self: center;
  }

  .lightbox-dialog[data-shot="miniplayer"] .lightbox-stage {
    inline-size: min(91dvw, 40rem, calc((92dvb - 10rem) * 2.4));
    aspect-ratio: 420 / 175;
  }

  .lightbox-stage img {
    display: block;
    inline-size: 100%;
    block-size: 100%;
    object-fit: contain;
  }

  @media (max-width: 40rem) {
    .lightbox-stage {
      inline-size: min(100%, calc((92dvb - 11rem) * 1.5015));
    }

    .lightbox-dialog[data-shot="miniplayer"] .lightbox-stage {
      inline-size: min(100%, calc((92dvb - 11rem) * 2.4));
    }
  }

  @media (max-height: 32rem) {
    .lightbox-shell {
      gap: 0.45rem;
      padding: 0.5rem 0.75rem;
    }

    .lightbox-stage {
      inline-size: min(91dvw, 64rem, calc((92dvb - 11rem) * 1.5015));
    }

    .lightbox-dialog[data-shot="miniplayer"] .lightbox-stage {
      inline-size: min(91dvw, 40rem, calc((92dvb - 11rem) * 2.4));
    }

    .lightbox-caption {
      font-size: 0.8125rem;
      line-height: 1.35;
    }
  }

  .lightbox-foot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.65rem 1rem;
    inline-size: 0;
    min-inline-size: 100%;
  }

  .lightbox-caption {
    flex: 1 1 16rem;
    min-inline-size: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.45;
  }

  .lightbox-controls {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-inline-start: auto;
  }

  .lightbox-counter {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    background-color: var(--bg-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
  }

  .lightbox-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    min-inline-size: 2.75rem;
    min-block-size: 2.75rem;
    border-radius: var(--radius-control);
    border: 1px solid var(--border-interactive);
    background-color: var(--bg-elevated);
    color: var(--text-primary);
  }

  .lightbox-nav-btn:hover {
    background-color: var(--bg-highlight);
    border-color: var(--text-secondary);
  }

  /* Section 4: Audio Engineering & Architecture Split */
  .features-layout {
    display: grid;
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }

  @media (min-width: 60rem) {
    .features-layout {
      grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    }
  }

  .features-intro {
    display: grid;
    gap: 1.25rem;
    min-inline-size: 0;
  }

  .features-intro .section-head {
    margin-block-end: 0;
  }

  .arch-note {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding-block-start: 0.85rem;
    border-block-start: 1px solid var(--border-subtle);
  }

  .capability-grid {
    display: grid;
    gap: 1.5rem;
    min-inline-size: 0;
  }

  @media (min-width: 40rem) {
    .capability-grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
    }
  }

  .capability-item {
    display: grid;
    gap: 0.65rem;
    align-content: start;
    padding-block-start: 1.15rem;
    border-block-start: 1px solid var(--border-interactive);
  }

  .capability-head {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-primary);
  }

  .capability-icon {
    color: var(--accent-text);
  }

  .capability-item p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
  }

  /* Section 4: Native Release Notes Disclosures */
  .changelog-list {
    display: grid;
    gap: 0.85rem;
    max-inline-size: 58rem;
  }

  .changelog-item {
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-control);
  }

  .changelog-item[open] {
    border-color: var(--border-interactive);
  }

  .changelog-summary {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    min-block-size: 3.5rem;
    padding: 0.85rem 1.25rem;
    border-radius: calc(var(--radius-control) - 1px);
    list-style: none;
    font-weight: 600;
  }

  .changelog-summary::-webkit-details-marker {
    display: none;
  }

  .changelog-summary-left {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    min-inline-size: 0;
  }

  .version-tag {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.2rem 0.55rem;
    border-radius: 6px;
    background-color: var(--accent-surface);
    color: var(--accent-text);
  }

  .changelog-date {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-muted);
  }

  .changelog-chevron {
    color: var(--text-secondary);
    transition: transform 200ms var(--ease-snappy);
  }

  .changelog-item[open] .changelog-chevron {
    transform: rotate(180deg);
  }

  .changelog-item::details-content {
    block-size: 0;
    overflow: hidden;
    transition: block-size 260ms var(--ease-snappy), content-visibility 260ms allow-discrete;
  }

  .changelog-item[open]::details-content {
    block-size: auto;
  }

  @media (prefers-reduced-motion: reduce) {
    .changelog-chevron,
    .changelog-item::details-content {
      transition: none;
    }
  }

  .changelog-content {
    padding: 0 1.25rem 1.25rem;
    border-block-start: 1px solid var(--border-subtle);
    display: grid;
    gap: 0.85rem;
  }

  .changelog-lead {
    padding-block-start: 0.9rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
  }

  .changelog-points {
    display: grid;
    gap: 0.45rem;
    padding-inline-start: 1.15rem;
    list-style: disc;
    color: var(--text-secondary);
    font-size: 0.9375rem;
  }

  /* Section 5: System Specifications & Build from Source */
  .specs-grid {
    display: grid;
    gap: clamp(2rem, 4vw, 3.25rem);
    align-items: start;
  }

  @media (min-width: 56rem) {
    .specs-grid {
      grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }
  }

  .spec-dl {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
    gap: 1.25rem;
    min-inline-size: 0;
  }

  .spec-card {
    padding: 1.1rem 1.2rem;
    background-color: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-control);
    display: grid;
    gap: 0.35rem;
  }

  .spec-card dt {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
  }

  .spec-card dd {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    overflow-wrap: anywhere;
  }

  .build-box {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-panel);
    padding: 1.25rem;
    display: grid;
    gap: 1rem;
    min-inline-size: 0;
  }

  .build-box-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
  }

  .code-pre {
    background-color: var(--bg-canvas);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-control);
    padding: 1rem 1.1rem;
    overflow-x: auto;
    font-size: 0.875rem;
    line-height: 1.65;
    color: var(--text-primary);
    max-inline-size: 100%;
  }

  /* Footer */
  .site-footer {
    border-block-start: 1px solid var(--border-subtle);
    background-color: var(--bg-canvas);
    padding-block: 2.5rem;
  }

  .footer-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: 2rem;
  }

  .footer-brand {
    display: grid;
    gap: 0.6rem;
    max-inline-size: 28rem;
  }

  .footer-note {
    font-size: 0.875rem;
    color: var(--text-muted);
  }

  .footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem 1.4rem;
    align-items: center;
  }

  .footer-links a {
    display: inline-flex;
    align-items: center;
    min-block-size: 2.75rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
  }

  .footer-links a:hover {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 4px;
  }
}

@layer utilities {
  [hidden] {
    display: none !important;
  }

  .visually-hidden:where(:not(:focus-within, :active)) {
    position: absolute !important;
    clip-path: inset(50%) !important;
    overflow: hidden !important;
    width: 1px !important;
    height: 1px !important;
    margin: -1px !important;
    padding: 0 !important;
    border: 0 !important;
    white-space: nowrap !important;
  }

  .sr-only-live {
    position: absolute;
    clip-path: inset(50%);
    overflow: hidden;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    border: 0;
    white-space: nowrap;
  }

  [inert] {
    opacity: 0.5;
  }

  [inert],
  [inert] * {
    cursor: default;
    user-select: none;
  }
}