/* Section: Layer order */
@layer reset, base, components, utilities;

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

  * {
    margin: 0;
  }

  html:focus-within {
    scroll-behavior: smooth;
  }

  body {
    min-height: 100vh;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
  }

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

  button,
  input,
  textarea,
  select {
    font: inherit;
  }

  ul[role="list"],
  ol[role="list"] {
    list-style: none;
  }
}

/* Section: Base tokens and document styles */
@layer base {
  :root {
    color-scheme: dark;

    --bg: #070b14;
    --bg-elevated: rgba(10, 16, 28, 0.75);
    --bg-card: rgba(8, 15, 30, 0.84);
    --bg-card-strong: rgba(10, 18, 36, 0.96);

    --line: rgba(124, 170, 255, 0.16);
    --line-strong: rgba(124, 170, 255, 0.28);

    --text: #eef5ff;
    --text-muted: #9fb1c9;
    --text-soft: #7f93ae;

    --accent: #41f1ff;
    --accent-2: #6e52ff;
    --accent-3: #9fffb2;
    --danger: #ff7b7b;

    --shadow-lg: 0 24px 80px rgba(0, 0, 0, 0.45);
    --shadow-md: 0 16px 42px rgba(0, 0, 0, 0.28);

    --radius-lg: 28px;
    --radius-md: 20px;
    --radius-sm: 14px;

    --container: min(1200px, calc(100vw - 2rem));
    --section-gap: clamp(4rem, 6vw, 7rem);
    --surface-blur: blur(18px);
  }

  @view-transition {
    navigation: auto;
  }

  html {
    background:
      radial-gradient(circle at 20% 10%, rgba(65, 241, 255, 0.12), transparent 26%),
      radial-gradient(circle at 80% 20%, rgba(110, 82, 255, 0.16), transparent 28%),
      linear-gradient(180deg, #060913 0%, #04070f 100%);
  }

  body {
    position: relative;
    min-width: 320px;
    overflow-x: clip;
    color: var(--text);
    font-family:
      Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
      sans-serif;
    line-height: 1.6;
    background: transparent;
  }

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

  p {
    color: var(--text-muted);
  }

  h1,
  h2,
  h3 {
    line-height: 1.05;
    letter-spacing: -0.03em;
  }

  h1 {
    font-size: clamp(2.6rem, 5vw, 4.8rem);
  }

  h2 {
    font-size: clamp(2rem, 4vw, 3.3rem);
  }

  h3 {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
  }

  ::selection {
    color: #081019;
    background: var(--accent);
  }

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

/* Section: Components */
@layer components {
  .skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 1000;
    padding: 0.8rem 1rem;
    border-radius: 0.75rem;
    color: #081019;
    background: var(--accent);
  }

  .skip-link:focus {
    top: 1rem;
  }

  .fx-canvas {
    position: fixed;
    inset: 0;
    z-index: 0;
    opacity: 0.9;
    pointer-events: none;
  }

  .site-shell {
    position: relative;
    z-index: 1;
  }

  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    backdrop-filter: var(--surface-blur);
    -webkit-backdrop-filter: var(--surface-blur);
    background: linear-gradient(180deg, rgba(7, 11, 20, 0.78), rgba(7, 11, 20, 0.35));
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .site-header__inner,
  .site-footer__inner,
  .hero,
  .subhero,
  .content-section {
    width: var(--container);
    margin-inline: auto;
  }

  .site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 5.25rem;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 0.9rem;
    min-width: 0;
  }

  .brand__logo {
    flex: 0 0 auto;
    width: 3rem;
    height: 3rem;
    border-radius: 14px;
    box-shadow: 0 0 0 1px rgba(90, 193, 255, 0.18);
  }

  .brand__text {
    display: grid;
    min-width: 0;
  }

  .brand__name {
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .brand__tagline {
    color: var(--text-soft);
    font-size: 0.82rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .site-nav__list {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0;
    list-style: none;
  }

  .site-nav__link {
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
    padding: 0 1rem;
    border-radius: 999px;
    color: var(--text-muted);
    transition: color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
  }

  .site-nav__link:hover,
  .site-nav__link:focus-visible,
  .site-nav__link.is-active {
    color: var(--text);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: inset 0 0 0 1px rgba(159, 177, 201, 0.1);
  }

  .nav-toggle {
    display: none;
    place-items: center;
    gap: 0.25rem;
    width: 3rem;
    height: 3rem;
    border: 0;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    cursor: pointer;
  }

  .nav-toggle__line {
    width: 1.25rem;
    height: 2px;
    border-radius: 999px;
    background: currentColor;
  }

  .section-frame {
    position: relative;
  }

  .section-frame::before {
    content: "";
    position: absolute;
    inset: auto 0 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(65, 241, 255, 0.35), transparent);
    opacity: 0.55;
  }

  .hero {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(290px, 0.85fr);
    align-items: center;
    gap: clamp(2rem, 4vw, 4rem);
    min-height: calc(100vh - 5.25rem);
    padding-block: clamp(3rem, 8vw, 7rem);
  }

  .hero__copy {
    max-width: 58rem;
  }

  .eyebrow {
    margin-bottom: 1rem;
    color: var(--accent);
    font-size: 0.88rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
  }

  .hero__title {
    max-width: 12ch;
    background: linear-gradient(180deg, #ffffff 0%, #c5d7ff 50%, #8ba4ff 100%);
    -webkit-text-fill-color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
  }

  .hero__lede,
  .subhero__lede {
    max-width: 64ch;
    margin-top: 1.4rem;
    font-size: clamp(1.02rem, 1.35vw, 1.2rem);
  }

  .hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.875rem;
    margin-top: 2rem;
  }

  .button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 3.25rem;
    padding: 0 1.2rem;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 650;
    letter-spacing: 0.01em;
    transition:
      transform 180ms ease,
      box-shadow 180ms ease,
      border-color 180ms ease,
      background-color 180ms ease;
  }

  .button:hover,
  .button:focus-visible {
    transform: translateY(-1px);
  }

  .button--primary {
    color: #081019;
    background: linear-gradient(135deg, var(--accent), #96f8ff);
    box-shadow: 0 12px 34px rgba(65, 241, 255, 0.26);
  }

  .button--ghost {
    border-color: var(--line-strong);
    background: rgba(255, 255, 255, 0.03);
  }

  .signal-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-top: 1.8rem;
    padding: 0;
    list-style: none;
  }

  .signal-list li {
    padding: 0.55rem 0.85rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--text-soft);
    font-size: 0.92rem;
    background: rgba(255, 255, 255, 0.03);
  }

  .panel,
  .feature-card,
  .project-card,
  .lab-card,
  .process-card,
  .terminal-panel,
  .cta-panel {
    position: relative;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: clip;
  }

  .panel,
  .feature-card,
  .process-card,
  .terminal-panel,
  .cta-panel {
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0) 24%),
      var(--bg-card);
    backdrop-filter: var(--surface-blur);
    -webkit-backdrop-filter: var(--surface-blur);
  }

  .panel--glow::after,
  .project-card__glow {
    content: "";
    position: absolute;
    inset: auto auto 0 0;
    width: 12rem;
    height: 12rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(65, 241, 255, 0.16), transparent 72%);
    filter: blur(12px);
    transform: translate(-24%, 40%);
    pointer-events: none;
  }

  .panel--secondary {
    background: linear-gradient(180deg, rgba(30, 35, 66, 0.45), rgba(8, 12, 22, 0.9));
  }

  .panel__header,
  .terminal-panel__bar {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 1rem 1.1rem 0;
    color: var(--text-soft);
    font-size: 0.92rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
  }

  .status-dot {
    width: 0.72rem;
    height: 0.72rem;
    border-radius: 50%;
    background: var(--accent-3);
    box-shadow: 0 0 0.8rem rgba(159, 255, 178, 0.55);
  }

  .metric-stack {
    display: grid;
    gap: 0.9rem;
    padding: 1.15rem;
  }

  .metric-card {
    padding: 1rem;
    border: 1px solid rgba(159, 177, 201, 0.08);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.03);
  }

  .metric-card__label,
  .project-card__label {
    color: var(--text-soft);
    font-size: 0.82rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
  }

  .metric-card__value {
    margin-top: 0.4rem;
    color: var(--text);
    font-size: 1.2rem;
    font-weight: 700;
  }

  .metric-card__note {
    margin-top: 0.28rem;
    font-size: 0.92rem;
  }

  .scanline-box {
    position: relative;
    margin: 0 1.15rem 1.15rem;
    padding: 1rem;
    border: 1px solid rgba(65, 241, 255, 0.18);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: rgba(15, 24, 44, 0.76);
  }

  .scanline-box::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      linear-gradient(transparent 0%, rgba(255, 255, 255, 0.05) 49%, transparent 51%),
      linear-gradient(0deg, rgba(65, 241, 255, 0.04), transparent);
    background-size: 100% 6px, 100% 100%;
    pointer-events: none;
  }

  .scanline-box__label {
    color: var(--text-soft);
    font-size: 0.8rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
  }

  .scanline-box__value {
    margin-top: 0.45rem;
    color: var(--text);
  }

  .subhero,
  .content-section {
    padding-block: clamp(2.2rem, 5vw, 4rem);
  }

  .section-heading {
    max-width: 60rem;
    margin-bottom: 2rem;
  }

  .section-heading--compact {
    margin-bottom: 1rem;
  }

  .card-grid,
  .feature-grid,
  .process-grid,
  .lab-grid {
    display: grid;
    gap: 1.2rem;
  }

  .card-grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .feature-grid,
  .process-grid,
  .lab-grid,
  .two-column-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-card,
  .feature-card,
  .process-card,
  .lab-card {
    padding: 1.25rem;
  }

  .project-card {
    grid-column: span 4;
    position: relative;
    container-type: inline-size;
    background:
      linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0) 18%),
      var(--bg-card-strong);
  }

  .project-card__header {
    position: relative;
    z-index: 1;
  }

  .project-card h3,
  .lab-card h3,
  .feature-card h3,
  .process-card h3 {
    margin-top: 0.75rem;
  }

  .project-card__summary {
    margin-top: 1rem;
  }

  .project-card__meta,
  .project-card__footer {
    margin-top: 1.1rem;
  }

  .tag-row,
  .stack-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    padding: 0;
    margin-top: 0.8rem;
    list-style: none;
  }

  .tag-row li,
  .stack-list li,
  .chip,
  .chip--soft,
  .status-pill {
    padding: 0.45rem 0.72rem;
    border-radius: 999px;
    border: 1px solid rgba(159, 177, 201, 0.12);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-soft);
    font-size: 0.86rem;
  }

  .chip {
    display: inline-flex;
    align-items: center;
    color: #081019;
    font-weight: 700;
    background: linear-gradient(135deg, rgba(65, 241, 255, 0.96), rgba(148, 249, 255, 0.84));
  }

  .chip--soft {
    color: #081019;
    border-color: rgba(65, 241, 255, 0.35);
    background: rgba(65, 241, 255, 0.75);
  }

  .status-pill {
    color: var(--accent-3);
    border-color: rgba(159, 255, 178, 0.12);
  }

  .feature-card,
  .process-card,
  .lab-card {
    min-height: 100%;
  }

  .process-card__step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.6rem;
    height: 2.6rem;
    border-radius: 999px;
    color: #081019;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), #ecffff);
  }

  .lab-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }

  .two-column-panel {
    display: grid;
    gap: 1.2rem;
  }

  .panel {
    padding: 1rem;
  }

  .panel p + p {
    margin-top: 1rem;
  }

  .terminal-panel {
    background:
      linear-gradient(180deg, rgba(25, 38, 63, 0.8), rgba(6, 10, 18, 0.95)),
      var(--bg-card);
  }

  .terminal-panel__bar span {
    width: 0.78rem;
    height: 0.78rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
  }

  .terminal-panel__body {
    padding: 1.25rem;
    color: #bbf6ff;
    font-family:
      "SFMono-Regular", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    white-space: pre-wrap;
    line-height: 1.7;
  }

  .cta-panel {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.4rem;
  }

  .site-footer {
    padding: 3rem 0 4rem;
  }

  .site-footer__inner {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1.2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .site-footer__brand {
    color: var(--text);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
  }

  .site-footer__copy {
    margin-top: 0.45rem;
    max-width: 50ch;
  }

  .site-footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .site-footer__links a {
    color: var(--text-soft);
  }

  .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
  }

  /* Section: Reveal behavior */
  .reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 550ms ease, transform 550ms ease;
    will-change: transform, opacity;
  }

  .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Section: Container query enhancement */
  @container (min-width: 36rem) {
    .project-card__header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
    }
  }

  /* Section: Responsive layout */
  @media (max-width: 1100px) {
    .hero {
      grid-template-columns: 1fr;
      min-height: auto;
    }

    .project-card {
      grid-column: span 6;
    }
  }

  @media (max-width: 840px) {
    .feature-grid,
    .process-grid,
    .lab-grid,
    .two-column-panel,
    .cta-panel,
    .site-footer__inner {
      grid-template-columns: 1fr;
      flex-direction: column;
      align-items: flex-start;
    }

    .site-nav {
      position: absolute;
      top: calc(100% + 0.5rem);
      right: 1rem;
      width: min(22rem, calc(100vw - 2rem));
      padding: 0.75rem;
      border: 1px solid var(--line);
      border-radius: 1.2rem;
      box-shadow: var(--shadow-lg);
      backdrop-filter: var(--surface-blur);
      -webkit-backdrop-filter: var(--surface-blur);
      background: rgba(8, 12, 24, 0.92);
      opacity: 0;
      visibility: hidden;
      transform: translateY(-10px);
      transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
    }

    .site-nav.is-open {
      opacity: 1;
      visibility: visible;
      transform: translateY(0);
    }

    .site-nav__list {
      flex-direction: column;
      align-items: stretch;
    }

    .site-nav__link {
      width: 100%;
      justify-content: space-between;
      border-radius: 1rem;
    }

    .nav-toggle {
      display: inline-grid;
    }
  }

  @media (max-width: 720px) {
    .project-card {
      grid-column: 1 / -1;
    }

    .site-header__inner {
      min-height: 4.8rem;
    }

    .brand__tagline {
      display: none;
    }
  }

  /* Section: Reduced motion support */
  @media (prefers-reduced-motion: reduce) {
    html:focus-within {
      scroll-behavior: auto;
    }

    .reveal,
    .reveal.is-visible,
    .button,
    .site-nav,
    .site-nav__link {
      transition: none;
      transform: none;
    }

    .fx-canvas {
      opacity: 0.45;
    }
  }
}

/* Section: Utilities */
@layer utilities {
  .menu-open {
    overflow: hidden;
  }
}