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

@layer reset {
  *,
  *::before,
  *::after {
    box-sizing: border-box;
  }

  html {
    scroll-behavior: smooth;
  }

  body,
  h1,
  h2,
  h3,
  p,
  ul,
  ol,
  figure {
    margin: 0;
  }

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

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

  button,
  input {
    font: inherit;
  }

  button,
  a {
    -webkit-tap-highlight-color: transparent;
  }
}

@layer base {
  :root {
    --bg: #060a08;
    --bg-deep: #020504;
    --surface: #0a110d;
    --surface-raised: #0e1712;
    --surface-soft: #121d17;
    --ink: #f1f7f2;
    --ink-strong: #ffffff;
    --muted: #92a299;
    --muted-strong: #b9c8bf;
    --line: rgba(196, 255, 211, 0.14);
    --line-strong: rgba(196, 255, 211, 0.28);
    --accent: #58ff7b;
    --accent-soft: #b9ffc8;
    --accent-2: #58e8ff;
    --signal: #ffb14a;
    --danger: #ff667d;
    --shadow: 0 28px 90px rgba(0, 0, 0, 0.38);
    --header-height: 76px;
    --page: min(1440px, calc(100vw - 64px));
    --page-wide: min(1580px, calc(100vw - 40px));
    --display: "Arial Black", "Helvetica Neue", Arial, sans-serif;
    --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  }

  body[data-mode="light"] {
    --bg: #edf3ee;
    --bg-deep: #dfe8e1;
    --surface: #f7faf7;
    --surface-raised: #ffffff;
    --surface-soft: #e7eee8;
    --ink: #101713;
    --ink-strong: #040806;
    --muted: #5b6a61;
    --muted-strong: #35443b;
    --line: rgba(17, 56, 30, 0.14);
    --line-strong: rgba(17, 56, 30, 0.3);
    --shadow: 0 28px 80px rgba(42, 65, 48, 0.14);
  }

  body {
    min-width: 320px;
    overflow-x: hidden;
    background:
      radial-gradient(circle at 82% 2%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 30rem),
      radial-gradient(circle at 12% 28%, color-mix(in srgb, var(--accent-2) 7%, transparent), transparent 34rem),
      var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    line-height: 1.5;
    text-rendering: optimizeLegibility;
    transition: background-color 300ms ease, color 300ms ease;
  }

  body::selection {
    color: #041006;
    background: var(--accent);
  }

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

  button {
    color: inherit;
  }

  :focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 4px;
  }

  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  .skip-link {
    position: fixed;
    z-index: 999;
    top: 12px;
    left: 12px;
    padding: 12px 18px;
    transform: translateY(-150%);
    border: 1px solid var(--accent);
    background: var(--bg);
    color: var(--ink);
    transition: transform 180ms ease;
  }

  .skip-link:focus {
    transform: translateY(0);
  }
}

@layer components {
  .eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--muted-strong);
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
  }

  .eyebrow > span {
    width: 28px;
    height: 1px;
    background: var(--accent);
    box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 65%, transparent);
  }

  .button {
    min-height: 54px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
    padding: 0 22px;
    border: 1px solid var(--line-strong);
    font-family: var(--mono);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition:
      transform 180ms ease,
      border-color 180ms ease,
      background-color 180ms ease,
      color 180ms ease;
  }

  .button:hover {
    transform: translateY(-3px);
  }

  .button-primary {
    border-color: var(--accent);
    background: var(--accent);
    color: #061108;
    box-shadow: 0 16px 44px color-mix(in srgb, var(--accent) 18%, transparent);
  }

  .button-primary:hover {
    background: var(--accent-soft);
  }

  .button-quiet {
    background: color-mix(in srgb, var(--surface) 80%, transparent);
  }

  .button-quiet:hover {
    border-color: var(--accent);
    color: var(--accent);
  }

  .section {
    width: var(--page);
    margin-inline: auto;
    padding-block: clamp(110px, 11vw, 180px);
  }

  .section-heading {
    max-width: 950px;
    margin-bottom: clamp(56px, 7vw, 96px);
  }

  .section-heading h2,
  .workbench-copy h2,
  .skins-copy h2,
  .identity-heading h2,
  .closing-copy h2 {
    margin-top: 24px;
    color: var(--ink-strong);
    font-family: var(--display);
    font-size: clamp(3.4rem, 7.2vw, 7.5rem);
    font-weight: 900;
    line-height: 0.87;
    letter-spacing: -0.075em;
    text-transform: uppercase;
  }

  .section-heading h2 em,
  .workbench-copy h2 em,
  .skins-copy h2 em,
  .identity-heading h2 em,
  .closing-copy h2 em {
    color: var(--accent);
    font-style: normal;
  }

  .section-heading > p:last-child,
  .workbench-copy > p,
  .skins-copy > p,
  .identity-heading > p,
  .closing-copy > p {
    max-width: 650px;
    margin-top: 30px;
    color: var(--muted);
    font-size: clamp(1rem, 1.35vw, 1.28rem);
    line-height: 1.65;
  }

  .section-heading-horizontal {
    max-width: none;
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.6fr);
    gap: 9vw;
    align-items: end;
  }

  .section-heading-horizontal > p {
    padding-bottom: 8px;
  }
}

@layer sections {
  .site-header {
    position: fixed;
    z-index: 100;
    top: 0;
    left: 0;
    width: 100%;
    border-bottom: 1px solid transparent;
    transition:
      background-color 240ms ease,
      border-color 240ms ease,
      transform 240ms ease;
  }

  .site-header.is-scrolled {
    border-color: var(--line);
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
  }

  .header-inner {
    width: var(--page-wide);
    min-height: var(--header-height);
    margin-inline: auto;
    display: flex;
    align-items: center;
    gap: 34px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    flex: 0 0 auto;
  }

  .brand img {
    width: 38px;
    height: 38px;
    object-fit: contain;
  }

  .brand-word {
    font-family: var(--display);
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: -0.045em;
  }

  .brand-word span {
    color: var(--accent);
  }

  .desktop-nav {
    margin-inline: auto;
    display: flex;
    align-items: center;
    gap: clamp(20px, 2.3vw, 38px);
  }

  .desktop-nav a {
    position: relative;
    color: var(--muted-strong);
    font-size: 0.78rem;
    font-weight: 700;
  }

  .desktop-nav a::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: -9px;
    left: 0;
    height: 1px;
    transform: scaleX(0);
    transform-origin: right;
    background: var(--accent);
    transition: transform 180ms ease;
  }

  .desktop-nav a:hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }

  .header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .mode-toggle,
  .menu-toggle {
    border: 0;
    background: transparent;
    cursor: pointer;
  }

  .mode-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 10px;
    color: var(--muted-strong);
    font-family: var(--mono);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .mode-toggle-dot {
    width: 13px;
    height: 13px;
    border: 1px solid var(--line-strong);
    border-radius: 50%;
    background: linear-gradient(90deg, var(--accent) 50%, var(--surface) 50%);
  }

  .header-cta {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    padding-inline: 15px;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: #061108;
    font-family: var(--mono);
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: background-color 180ms ease;
  }

  .header-cta:hover {
    background: var(--accent-soft);
  }

  .menu-toggle {
    display: none;
    padding: 5px;
  }

  .menu-toggle img {
    width: 30px;
    height: 30px;
  }

  .mobile-nav {
    width: var(--page-wide);
    margin-inline: auto;
    padding: 10px 0 24px;
    border-top: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg) 92%, transparent);
  }

  .mobile-nav a {
    display: block;
    padding: 12px 6px;
    border-bottom: 1px solid var(--line);
    font-family: var(--display);
    font-size: 1.6rem;
    font-weight: 800;
    text-transform: uppercase;
  }

  .hero {
    position: relative;
    min-height: 980px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    background:
      radial-gradient(circle at 72% 40%, color-mix(in srgb, var(--accent) 10%, transparent), transparent 31rem),
      linear-gradient(180deg, color-mix(in srgb, var(--surface) 60%, transparent), transparent 30%);
  }

  .hero-grid {
    position: absolute;
    inset: 0;
    opacity: 0.7;
    background-image:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 72px 72px;
    -webkit-mask-image: linear-gradient(to bottom, black, transparent 88%);
    mask-image: linear-gradient(to bottom, black, transparent 88%);
  }

  .hero::before {
    content: "NBOT / AI / OS";
    position: absolute;
    top: 112px;
    right: 24px;
    color: color-mix(in srgb, var(--ink) 4%, transparent);
    font-family: var(--display);
    font-size: clamp(6rem, 13vw, 15rem);
    font-weight: 900;
    line-height: 0.72;
    letter-spacing: -0.08em;
    writing-mode: vertical-rl;
    pointer-events: none;
  }

  .hero-content {
    position: relative;
    z-index: 2;
    width: var(--page);
    margin: calc(var(--header-height) + 72px) auto 82px;
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(480px, 0.95fr);
    gap: clamp(30px, 5vw, 90px);
    align-items: center;
  }

  .hero-copy {
    padding-top: 30px;
  }

  .hero h1 {
    margin-top: 28px;
    max-width: 850px;
    color: var(--ink-strong);
    font-family: var(--display);
    font-size: clamp(4.2rem, 7.6vw, 8.2rem);
    font-weight: 900;
    line-height: 0.81;
    letter-spacing: -0.08em;
    text-transform: uppercase;
  }

  .hero h1 em {
    position: relative;
    display: inline-block;
    color: var(--accent);
    font-style: normal;
    text-shadow: 0 0 38px color-mix(in srgb, var(--accent) 18%, transparent);
  }

  .hero h1 em::after {
    content: "";
    position: absolute;
    right: 0.04em;
    bottom: -0.08em;
    left: 0;
    height: 0.055em;
    background: var(--accent);
    box-shadow: 0 0 22px color-mix(in srgb, var(--accent) 60%, transparent);
  }

  .hero-intro {
    max-width: 680px;
    margin-top: 36px;
    color: var(--muted-strong);
    font-size: clamp(1.06rem, 1.45vw, 1.34rem);
    line-height: 1.65;
  }

  .hero-actions {
    margin-top: 38px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
  }

  .hero-principles {
    margin-top: 58px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px 36px;
    color: var(--muted-strong);
    font-family: var(--mono);
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .hero-principles li {
    display: flex;
    align-items: center;
    gap: 9px;
  }

  .hero-principles span {
    color: var(--accent);
  }

  .hero-product {
    position: relative;
    margin: 0;
    padding: 12px;
    border: 1px solid var(--line-strong);
    background: color-mix(in srgb, var(--surface-raised) 90%, transparent);
    box-shadow: 0 36px 80px rgba(0, 0, 0, 0.32);
  }

  .hero-product::before {
    content: "LIVE WORKSPACE";
    position: absolute;
    z-index: 2;
    top: -12px;
    right: 20px;
    padding: 7px 10px;
    border: 1px solid var(--accent);
    background: var(--bg);
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.52rem;
    font-weight: 800;
    letter-spacing: 0.09em;
  }

  .hero-product-frame {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line);
    background: #020805;
  }

  .hero-product-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    box-shadow: inset 0 0 60px rgba(0, 0, 0, 0.2);
    pointer-events: none;
  }

  .hero-product img {
    width: 100%;
    height: auto;
    display: block;
  }

  .hero-product figcaption {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 14px 10px 2px;
  }

  .hero-product figcaption span {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.55rem;
    font-weight: 800;
    letter-spacing: 0.1em;
  }

  .hero-product figcaption strong {
    max-width: 340px;
    color: var(--muted-strong);
    font-size: 0.76rem;
    line-height: 1.45;
    text-align: right;
  }

  .hero-footer {
    position: relative;
    z-index: 2;
    width: 100%;
    min-height: 58px;
    display: flex;
    align-items: center;
    justify-content: space-around;
    gap: 20px;
    overflow: hidden;
    border-top: 1px solid var(--line);
    background: color-mix(in srgb, var(--surface) 80%, transparent);
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.11em;
    white-space: nowrap;
  }

  .hero-footer i {
    color: var(--accent);
    font-style: normal;
  }

  .platform-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    border-top: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }

  .feature-card {
    position: relative;
    min-height: 440px;
    padding: clamp(28px, 3.6vw, 56px);
    overflow: hidden;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: var(--surface);
    transition: background-color 260ms ease;
  }

  .feature-card::after {
    content: "";
    position: absolute;
    right: -18%;
    bottom: -30%;
    width: 70%;
    aspect-ratio: 1;
    border: 1px solid var(--line);
    border-radius: 50%;
    opacity: 0.5;
    transition: transform 500ms ease, border-color 240ms ease;
  }

  .feature-card:hover {
    background: var(--surface-raised);
  }

  .feature-card:hover::after {
    transform: scale(1.15);
    border-color: var(--accent);
  }

  .feature-card-chat,
  .feature-card-work {
    grid-column: span 5;
  }

  .feature-card-route,
  .feature-card-sync {
    grid-column: span 7;
  }

  .feature-number {
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.65rem;
    font-weight: 800;
    letter-spacing: 0.08em;
  }

  .feature-card > img {
    width: 40px;
    height: 40px;
    margin: 44px 0 24px;
    object-fit: contain;
    filter: drop-shadow(0 8px 14px rgba(0, 0, 0, 0.24));
  }

  .feature-card h3 {
    max-width: 550px;
    color: var(--ink-strong);
    font-family: var(--display);
    font-size: clamp(2rem, 3.5vw, 3.8rem);
    font-weight: 900;
    line-height: 0.96;
    letter-spacing: -0.06em;
    text-transform: uppercase;
  }

  .feature-card > p {
    max-width: 580px;
    margin-top: 22px;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.65;
  }

  .feature-card ul {
    position: relative;
    z-index: 2;
    margin-top: 26px;
    display: grid;
    gap: 9px;
    color: var(--muted-strong);
    font-size: 0.82rem;
  }

  .feature-card li::before {
    content: "↳";
    margin-right: 10px;
    color: var(--accent);
  }

  .lane-list {
    position: relative;
    z-index: 2;
    margin-top: 36px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .lane-list span {
    padding: 8px 10px;
    border: 1px solid var(--line-strong);
    background: color-mix(in srgb, var(--bg) 55%, transparent);
    color: var(--muted-strong);
    font-family: var(--mono);
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 0.08em;
  }

  .mini-flow {
    position: relative;
    z-index: 2;
    margin-top: 35px;
    display: flex;
    align-items: center;
    gap: 8px;
  }

  .mini-flow span {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    border: 1px solid var(--line);
    background: var(--bg);
  }

  .mini-flow img {
    width: 38px;
    height: 38px;
    object-fit: contain;
  }

  .mini-flow i {
    width: 28px;
    height: 1px;
    background: var(--accent);
  }

  .sync-meter {
    position: relative;
    z-index: 2;
    max-width: 400px;
    margin-top: 40px;
  }

  .sync-meter::before {
    content: "";
    display: block;
    width: 100%;
    height: 4px;
    background: var(--line);
  }

  .sync-meter > span {
    display: block;
    width: var(--meter);
    height: 4px;
    margin-top: -4px;
    background: var(--accent);
    box-shadow: 0 0 20px color-mix(in srgb, var(--accent) 50%, transparent);
  }

  .sync-meter small {
    display: block;
    margin-top: 12px;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.59rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }

  .workbench-section {
    width: var(--page-wide);
    margin-inline: auto;
    display: grid;
    grid-template-columns: minmax(320px, 0.65fr) minmax(620px, 1.35fr);
    gap: clamp(50px, 7vw, 120px);
    align-items: center;
    padding: clamp(80px, 9vw, 150px) clamp(24px, 5vw, 78px);
    border: 1px solid var(--line);
    background:
      linear-gradient(130deg, color-mix(in srgb, var(--accent) 5%, transparent), transparent 45%),
      var(--surface);
  }

  .workbench-copy,
  .workbench {
    min-width: 0;
  }

  .workbench-copy h2 {
    font-size: clamp(3.1rem, 5.4vw, 6rem);
  }

  .workbench-stats {
    margin-top: 44px;
    display: flex;
    gap: 12px;
  }

  .workbench-stats > div {
    min-width: 98px;
    padding: 15px;
    border-top: 1px solid var(--line-strong);
  }

  .workbench-stats strong,
  .workbench-stats span {
    display: block;
  }

  .workbench-stats strong {
    color: var(--accent);
    font-family: var(--display);
    font-size: 2rem;
  }

  .workbench-stats span {
    margin-top: 2px;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.55rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }

  .workbench {
    overflow: hidden;
    border: 1px solid var(--line-strong);
    background: var(--bg-deep);
    box-shadow: var(--shadow);
    transform: perspective(1400px) rotateY(-3deg) rotateX(1deg);
  }

  .workbench-bar {
    min-height: 54px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 0 16px;
    border-bottom: 1px solid var(--line);
    background: var(--surface-raised);
  }

  .workbench-brand,
  .workbench-status {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.55rem;
    font-weight: 700;
    letter-spacing: 0.06em;
  }

  .workbench-brand img {
    width: 28px;
    height: 28px;
  }

  .workbench-status i {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent);
  }

  .workbench-body {
    min-height: 560px;
    display: grid;
    grid-template-columns: 78px 1fr;
  }

  .workbench-rail {
    padding-block: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    border-right: 1px solid var(--line);
    background: var(--surface);
  }

  .workbench-rail img {
    width: 43px;
    height: 43px;
    object-fit: contain;
    opacity: 0.68;
  }

  .workbench-rail img:first-child {
    opacity: 1;
    filter: drop-shadow(0 0 12px color-mix(in srgb, var(--accent) 35%, transparent));
  }

  .workbench-main {
    padding: clamp(24px, 3vw, 42px);
    background-image:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 40px 40px;
  }

  .brief-kicker {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 0.1em;
  }

  .brief-block h3 {
    max-width: 690px;
    margin-top: 12px;
    font-family: var(--display);
    font-size: clamp(2rem, 3.4vw, 3.3rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
    text-transform: uppercase;
  }

  .brief-meta {
    margin-top: 22px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .brief-meta span {
    padding: 6px 9px;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.55rem;
    text-transform: uppercase;
  }

  .task-grid {
    margin-top: 34px;
    display: grid;
    grid-template-columns: 1.5fr 0.75fr 0.75fr;
    gap: 10px;
  }

  .task-card {
    min-height: 150px;
    padding: 18px;
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--surface-raised) 92%, transparent);
  }

  .task-card > span {
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.54rem;
    font-weight: 800;
    letter-spacing: 0.08em;
  }

  .task-card > p {
    margin-top: 18px;
    color: var(--muted-strong);
    font-size: 0.78rem;
  }

  .task-card > img {
    width: 58px;
    height: 58px;
    margin-bottom: 12px;
    object-fit: contain;
  }

  .task-progress {
    height: 3px;
    margin-top: 28px;
    background: var(--line);
  }

  .task-progress i {
    display: block;
    width: var(--progress);
    height: 100%;
    background: var(--accent);
  }

  .activity-line {
    margin-top: 12px;
    display: grid;
    grid-template-columns: 30px 1fr auto;
    align-items: center;
    gap: 11px;
    padding: 12px;
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg) 80%, transparent);
    color: var(--muted);
    font-size: 0.66rem;
  }

  .activity-line img {
    width: 28px;
    height: 28px;
  }

  .activity-line time {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.55rem;
  }

  .flow-list {
    counter-reset: flow;
    border-top: 1px solid var(--line);
  }

  .flow-list li {
    position: relative;
    min-height: 170px;
    display: grid;
    grid-template-columns: 80px 90px minmax(280px, 0.9fr) minmax(280px, 0.8fr);
    gap: clamp(20px, 4vw, 70px);
    align-items: center;
    padding: 28px 12px;
    overflow: hidden;
    border-bottom: 1px solid var(--line);
    transition: background-color 220ms ease;
  }

  .flow-list li::after {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateX(-101%);
    background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 9%, transparent), transparent 70%);
    transition: transform 450ms cubic-bezier(0.2, 0.75, 0.3, 1);
    pointer-events: none;
  }

  .flow-list li:hover::after {
    transform: translateX(0);
  }

  .flow-index {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.7rem;
    font-weight: 800;
  }

  .flow-list img {
    position: relative;
    z-index: 1;
    width: 44px;
    height: 44px;
    object-fit: contain;
  }

  .flow-list div,
  .flow-list p {
    position: relative;
    z-index: 1;
  }

  .flow-list small {
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.57rem;
    font-weight: 800;
    letter-spacing: 0.09em;
  }

  .flow-list h3 {
    margin-top: 8px;
    font-family: var(--display);
    font-size: clamp(1.5rem, 2.4vw, 2.55rem);
    line-height: 1;
    letter-spacing: -0.05em;
    text-transform: uppercase;
  }

  .flow-list p {
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.65;
  }

  .capabilities-section {
    padding-top: clamp(90px, 9vw, 150px);
  }

  .capability-controls {
    position: sticky;
    z-index: 20;
    top: calc(var(--header-height) + 10px);
    margin-bottom: 30px;
    display: grid;
    grid-template-columns: 1fr minmax(230px, 320px) auto;
    align-items: center;
    gap: 16px;
    padding: 14px;
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
  }

  .filter-group {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .filter-group button {
    min-height: 36px;
    padding: 0 12px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
  }

  .filter-group button:hover,
  .filter-group button.is-active {
    border-color: var(--accent);
    color: var(--accent);
  }

  .capability-search {
    min-height: 38px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 12px;
    border-bottom: 1px solid var(--line-strong);
  }

  .capability-search input {
    min-width: 0;
    width: 100%;
    border: 0;
    outline: 0;
    background: transparent;
    color: var(--ink);
    font-size: 0.76rem;
  }

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

  .capability-search span {
    color: var(--accent);
  }

  .capability-count {
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.58rem;
    text-transform: uppercase;
  }

  .capability-count strong {
    color: var(--accent);
  }

  .capability-grid {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    border-top: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }

  .capability-tile {
    position: relative;
    min-width: 0;
    min-height: 190px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: space-between;
    padding: 22px;
    overflow: hidden;
    border: 0;
    border-right: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    background: var(--surface);
    text-align: left;
    cursor: default;
    transition: background-color 220ms ease;
  }

  .capability-tile::before {
    content: "";
    position: absolute;
    inset: auto -28% -60% 18%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    transform: scale(0.7);
    opacity: 0;
    transition: transform 350ms ease, opacity 350ms ease;
  }

  .capability-tile:hover {
    background: var(--surface-raised);
  }

  .capability-tile:hover::before {
    transform: scale(1);
    opacity: 1;
  }

  .capability-tile[hidden] {
    display: none;
  }

  .capability-tile img {
    position: relative;
    z-index: 1;
    width: 64px;
    height: 64px;
    object-fit: contain;
    filter: drop-shadow(0 12px 18px rgba(0, 0, 0, 0.25));
    transition: transform 240ms ease;
  }

  .capability-tile:hover img {
    transform: translateY(-5px) scale(1.04);
  }

  .capability-footer {
    display: flex;
    justify-content: center;
    padding-top: 34px;
  }

  .capability-footer .button {
    min-width: 230px;
    cursor: pointer;
  }

  .capability-meta {
    position: relative;
    z-index: 1;
    width: 100%;
    display: flex;
    justify-content: space-between;
    gap: 8px;
    align-items: end;
  }

  .capability-meta strong {
    overflow: hidden;
    font-size: 0.76rem;
    font-weight: 750;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .capability-meta small {
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.5rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .noscript-note {
    padding: 20px;
    border: 1px solid var(--line);
    color: var(--muted);
  }

  .skins-section {
    position: relative;
    min-height: 900px;
    display: flex;
    align-items: center;
    overflow: hidden;
    border-block: 1px solid var(--line);
    background:
      radial-gradient(circle at 70% 50%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 35rem),
      var(--bg-deep);
  }

  .skins-backdrop {
    position: absolute;
    inset: 0;
    opacity: 0.28;
    background-image:
      linear-gradient(35deg, transparent 35%, var(--line) 35%, var(--line) 36%, transparent 36%),
      linear-gradient(-35deg, transparent 35%, var(--line) 35%, var(--line) 36%, transparent 36%);
    background-size: 90px 90px;
    -webkit-mask-image: radial-gradient(circle at 65% 50%, black, transparent 72%);
    mask-image: radial-gradient(circle at 65% 50%, black, transparent 72%);
  }

  .skins-content {
    position: relative;
    z-index: 1;
    width: var(--page);
    margin-inline: auto;
    display: grid;
    grid-template-columns: minmax(340px, 0.65fr) minmax(0, 1.35fr);
    gap: clamp(60px, 8vw, 130px);
    align-items: center;
    padding-block: 100px;
  }

  .skins-copy h2 {
    font-size: clamp(3.1rem, 5.7vw, 6.3rem);
  }

  .active-skin {
    margin-top: 42px;
    padding: 18px 0;
    display: grid;
    gap: 5px;
    border-block: 1px solid var(--line-strong);
  }

  .active-skin span {
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.55rem;
    font-weight: 800;
    letter-spacing: 0.08em;
  }

  .active-skin strong {
    color: var(--accent);
    font-family: var(--display);
    font-size: 1.7rem;
    letter-spacing: -0.04em;
    text-transform: uppercase;
  }

  .skin-studio {
    display: grid;
    gap: 18px;
  }

  .skin-preview {
    min-height: 430px;
    overflow: hidden;
    border: 1px solid var(--line-strong);
    background: color-mix(in srgb, var(--surface) 94%, #020805);
    box-shadow: var(--shadow);
  }

  .skin-preview-bar {
    min-height: 54px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 12px;
    padding: 0 18px;
    border-bottom: 1px solid var(--line);
    font-family: var(--mono);
    font-size: 0.54rem;
    letter-spacing: 0.08em;
  }

  .skin-preview-bar > span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 16px var(--accent);
  }

  .skin-preview-bar small {
    color: var(--muted);
  }

  .skin-preview-bar i {
    color: var(--accent);
    font-style: normal;
  }

  .skin-preview-body {
    min-height: 376px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(30px, 5vw, 64px);
    background-image:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px);
    background-size: 44px 44px;
  }

  .skin-preview-kicker {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.56rem;
    font-weight: 800;
    letter-spacing: 0.1em;
  }

  .skin-preview-body > strong {
    max-width: 620px;
    margin-top: 20px;
    color: var(--ink-strong);
    font-family: var(--display);
    font-size: clamp(2.4rem, 4.8vw, 5rem);
    line-height: 0.9;
    letter-spacing: -0.06em;
    text-transform: uppercase;
  }

  .skin-preview-grid {
    margin-top: 44px;
    display: grid;
    grid-template-columns: 1.4fr 0.8fr 0.8fr;
    gap: 10px;
  }

  .skin-preview-grid span {
    min-height: 56px;
    border: 1px solid var(--line-strong);
    background: color-mix(in srgb, var(--surface-raised) 88%, transparent);
  }

  .skin-preview-grid span:first-child {
    border-bottom: 3px solid var(--accent);
  }

  .theme-rail {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px;
  }

  .theme-chip {
    min-width: 0;
    min-height: 76px;
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
    padding: 10px;
    border: 1px solid var(--line);
    background: color-mix(in srgb, var(--surface-raised) 88%, transparent);
    color: inherit;
    text-align: left;
    cursor: pointer;
    transition: transform 180ms ease, border-color 180ms ease;
  }

  .theme-chip:hover {
    transform: translateY(-3px);
    border-color: var(--line-strong);
  }

  .theme-chip.is-active {
    border-color: var(--accent);
    box-shadow: inset 0 0 0 1px var(--accent);
  }

  .theme-swatch {
    width: 30px;
    height: 30px;
    display: block;
    border: 1px solid color-mix(in srgb, var(--swatch-soft) 70%, #ffffff);
    box-shadow: inset 0 0 0 4px color-mix(in srgb, var(--bg) 34%, transparent);
  }

  .theme-chip > span:last-child {
    min-width: 0;
    overflow: hidden;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.48rem;
    font-weight: 700;
    line-height: 1.3;
    text-overflow: ellipsis;
    text-transform: uppercase;
    white-space: nowrap;
  }

  .architecture {
    display: grid;
    grid-template-columns: 1fr 48px 1fr 48px 1fr 48px 1fr 48px 1fr;
    align-items: center;
  }

  .architecture-node {
    position: relative;
    min-height: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--surface);
    text-align: center;
  }

  .architecture-node > span {
    position: absolute;
    top: 12px;
    left: 12px;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.55rem;
  }

  .architecture-node img {
    width: 52px;
    height: 52px;
    object-fit: contain;
  }

  .architecture-node strong {
    margin-top: 17px;
    font-family: var(--display);
    font-size: 1.3rem;
    letter-spacing: -0.04em;
    text-transform: uppercase;
  }

  .architecture-node small {
    margin-top: 7px;
    color: var(--muted);
    font-size: 0.67rem;
  }

  .architecture-core {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 7%, var(--surface));
    box-shadow: 0 0 55px color-mix(in srgb, var(--accent) 10%, transparent);
  }

  .architecture-link {
    height: 1px;
    background: var(--accent);
    box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 50%, transparent);
  }

  .system-notes {
    margin-top: 70px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line);
  }

  .system-notes article {
    min-height: 310px;
    padding: clamp(28px, 3vw, 48px);
    background: var(--surface);
  }

  .system-notes span {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.56rem;
    font-weight: 800;
    letter-spacing: 0.09em;
  }

  .system-notes h3 {
    margin-top: 55px;
    font-family: var(--display);
    font-size: clamp(1.65rem, 2.5vw, 2.8rem);
    line-height: 1;
    letter-spacing: -0.055em;
    text-transform: uppercase;
  }

  .system-notes p {
    margin-top: 22px;
    color: var(--muted);
    font-size: 0.86rem;
    line-height: 1.65;
  }

  .identity-section {
    width: var(--page-wide);
    margin: 0 auto clamp(40px, 5vw, 80px);
    display: grid;
    grid-template-columns: minmax(330px, 0.55fr) minmax(0, 1.45fr);
    gap: clamp(50px, 7vw, 110px);
    align-items: center;
    padding: clamp(70px, 8vw, 130px);
    border: 1px solid var(--line);
    background: var(--surface);
  }

  .identity-heading h2 {
    font-size: clamp(3rem, 5.2vw, 5.9rem);
  }

  .identity-showcase {
    min-height: 430px;
    display: grid;
    grid-template-columns: minmax(160px, 0.65fr) minmax(240px, 1.35fr);
    align-items: center;
    gap: clamp(28px, 4vw, 64px);
    padding: clamp(30px, 5vw, 70px);
    border: 1px solid var(--line-strong);
    background:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px),
      var(--bg-deep);
    background-size: 42px 42px;
  }

  .identity-showcase img {
    width: min(100%, 220px);
    filter: drop-shadow(0 22px 32px rgba(0, 0, 0, 0.3));
  }

  .identity-showcase div {
    display: grid;
    gap: 18px;
  }

  .identity-showcase span {
    color: var(--accent);
    font-family: var(--mono);
    font-size: 0.6rem;
    font-weight: 800;
    letter-spacing: 0.12em;
  }

  .identity-showcase strong {
    color: var(--ink-strong);
    font-family: var(--display);
    font-size: clamp(2rem, 3.3vw, 4rem);
    line-height: 0.95;
    letter-spacing: -0.05em;
  }

  .closing-section {
    position: relative;
    min-height: min(760px, 86vh);
    display: grid;
    grid-template-columns: minmax(0, 1040px);
    justify-content: center;
    align-items: center;
    padding: 90px max(32px, calc((100vw - min(1440px, calc(100vw - 64px))) / 2));
    overflow: hidden;
    border-block: 1px solid var(--line);
    background:
      linear-gradient(120deg, color-mix(in srgb, var(--accent) 8%, transparent), transparent 42%),
      var(--bg-deep);
  }

  .closing-copy {
    position: relative;
    z-index: 1;
    max-width: 980px;
  }

  .closing-copy h2 {
    font-size: clamp(3.8rem, 7vw, 7.8rem);
  }

  .site-footer {
    width: var(--page);
    min-height: 190px;
    margin-inline: auto;
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    gap: 32px;
  }

  .footer-brand img {
    width: 44px;
    height: 44px;
  }

  .site-footer > p,
  .site-footer > small {
    color: var(--muted);
    font-size: 0.7rem;
  }

  .site-footer nav {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
  }

  .site-footer nav a {
    color: var(--muted-strong);
    font-size: 0.7rem;
  }
}

@layer utilities {
  .js [data-reveal].is-visible {
    animation: reveal-up 700ms cubic-bezier(0.2, 0.75, 0.3, 1) both;
  }

  .js [data-reveal][data-delay="1"].is-visible {
    animation-delay: 100ms;
  }

  .js [data-reveal][data-delay="2"].is-visible {
    animation-delay: 200ms;
  }

  @keyframes reveal-up {
    from {
      opacity: 0;
      transform: translateY(28px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

}

@media (max-width: 1220px) {
  :root {
    --page: min(1180px, calc(100vw - 44px));
  }

  .desktop-nav {
    gap: 18px;
  }

  .hero-content {
    grid-template-columns: 1fr 0.85fr;
  }

  .capability-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .architecture {
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
  }

  .architecture-link {
    display: none;
  }

  .architecture-node {
    min-height: 230px;
  }

  .theme-rail {
    grid-template-columns: repeat(4, minmax(80px, 1fr));
  }
}

@media (max-width: 980px) {
  :root {
    --page: calc(100vw - 36px);
    --page-wide: calc(100vw - 24px);
  }

  .desktop-nav,
  .header-cta {
    display: none;
  }

  .header-actions {
    margin-left: auto;
  }

  .menu-toggle {
    display: block;
  }

  .hero {
    min-height: auto;
  }

  .hero-content {
    margin-top: calc(var(--header-height) + 74px);
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 800px;
  }

  .section-heading-horizontal {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .platform-grid {
    grid-template-columns: 1fr;
  }

  .feature-card-chat,
  .feature-card-route,
  .feature-card-work,
  .feature-card-sync {
    grid-column: auto;
  }

  .feature-card {
    min-height: 430px;
  }

  .workbench-section {
    grid-template-columns: 1fr;
  }

  .workbench-copy {
    max-width: 700px;
  }

  .workbench {
    transform: none;
  }

  .flow-list li {
    grid-template-columns: 50px 72px 1fr;
    gap: 20px;
  }

  .flow-list li > p {
    grid-column: 3;
  }

  .capability-controls {
    grid-template-columns: 1fr auto;
  }

  .capability-search {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .skins-content {
    grid-template-columns: 1fr;
  }

  .skins-copy {
    max-width: 720px;
  }

  .theme-rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .architecture {
    grid-template-columns: repeat(2, 1fr);
  }

  .architecture-node:last-child {
    grid-column: 1 / -1;
  }

  .system-notes {
    grid-template-columns: 1fr;
  }

  .system-notes article {
    min-height: 250px;
  }

  .identity-section {
    grid-template-columns: 1fr;
  }

  .closing-section {
    grid-template-columns: 1fr;
  }

  .site-footer {
    grid-template-columns: 1fr auto;
    padding-block: 45px;
  }

  .site-footer > p {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

@media (max-width: 660px) {
  :root {
    --header-height: 68px;
    --page: calc(100vw - 28px);
    --page-wide: calc(100vw - 18px);
  }

  .mode-toggle {
    padding-inline: 5px;
  }

  .mode-toggle [data-mode-label] {
    display: none;
  }

  .hero-content {
    margin-top: calc(var(--header-height) + 54px);
    margin-bottom: 50px;
  }

  .hero h1 {
    font-size: clamp(3.55rem, 17vw, 5.7rem);
  }

  .hero-intro {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .hero-principles {
    display: grid;
    gap: 12px;
  }

  .hero-product {
    padding: 7px;
  }

  .hero-product figcaption {
    min-height: 84px;
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .hero-product figcaption strong {
    max-width: none;
    text-align: left;
  }

  .hero-footer {
    justify-content: flex-start;
    padding-inline: 20px;
    overflow-x: auto;
  }

  .section-heading h2,
  .workbench-copy h2,
  .skins-copy h2,
  .identity-heading h2,
  .closing-copy h2 {
    font-size: clamp(3rem, 15.5vw, 5.2rem);
  }

  .workbench-copy h2 {
    font-size: clamp(2.7rem, 13vw, 4.6rem);
  }

  .feature-card {
    min-height: 440px;
    padding: 28px;
  }

  .feature-card > img {
    width: 36px;
    height: 36px;
    margin-top: 38px;
  }

  .workbench-section {
    padding: 66px 18px;
  }

  .workbench-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .workbench-stats > div {
    min-width: 0;
    padding: 10px 5px;
  }

  .workbench-body {
    grid-template-columns: 52px 1fr;
  }

  .workbench-rail {
    gap: 11px;
  }

  .workbench-rail img {
    width: 34px;
    height: 34px;
  }

  .workbench-main {
    padding: 20px 14px;
  }

  .task-grid {
    grid-template-columns: 1fr 1fr;
  }

  .task-card-wide {
    grid-column: 1 / -1;
  }

  .workbench-status {
    display: none;
  }

  .activity-line {
    grid-template-columns: 26px 1fr;
  }

  .activity-line time {
    display: none;
  }

  .flow-list li {
    grid-template-columns: 42px 58px 1fr;
    gap: 12px;
    padding-block: 24px;
  }

  .flow-list img {
    width: 40px;
    height: 40px;
  }

  .flow-list li > p {
    grid-column: 1 / -1;
    padding-left: 112px;
  }

  .capability-controls {
    position: relative;
    top: auto;
    grid-template-columns: 1fr;
  }

  .capability-search,
  .capability-count {
    grid-column: auto;
    grid-row: auto;
  }

  .filter-group {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    overflow: visible;
    padding-bottom: 0;
  }

  .filter-group button {
    width: 100%;
  }

  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .capability-tile {
    min-height: 165px;
    padding: 16px;
  }

  .capability-tile img {
    width: 56px;
    height: 56px;
  }

  .theme-rail {
    max-height: none;
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x mandatory;
  }

  .theme-chip {
    flex: 0 0 170px;
    scroll-snap-align: start;
  }

  .architecture {
    grid-template-columns: 1fr;
  }

  .architecture-node:last-child {
    grid-column: auto;
  }

  .identity-section {
    padding: 60px 20px;
  }

  .identity-heading,
  .identity-showcase {
    min-width: 0;
  }

  .identity-heading h2 {
    font-size: clamp(2.45rem, 12vw, 4rem);
  }

  .identity-showcase {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .identity-showcase img {
    width: 140px;
  }

  .closing-section {
    padding-inline: 20px;
  }

  .site-footer {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .site-footer > p {
    grid-column: auto;
    grid-row: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media (forced-colors: active) {
  .button-primary,
  .header-cta {
    border: 2px solid ButtonText;
  }

  .architecture-core,
  .theme-chip.is-active,
  .filter-group button.is-active {
    outline: 2px solid Highlight;
  }
}