/* Cascade layers: rules in later-named layers win over earlier ones when specificity ties.
   Order is low → high priority: reset, base, layout, components. */
@layer reset, base, layout, components;

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

  * {
    margin: 0;
  }

  html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
  }

  body {
    min-block-size: 100dvb;
    line-height: 1.5;
  }

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

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

@layer base {
  :root {
    color-scheme: light dark;

    --font-sans: system-ui, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif;
    --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", ui-serif, Georgia, serif;

    --space-xs: 0.35rem;
    --space-sm: 0.65rem;
    --space-md: 1rem;
    --space-lg: 1.75rem;
    --space-xl: 3rem;
    --space-2xl: clamp(3rem, 8dvi, 6rem);

    --text-sm: 0.9rem;
    --text-base: 1.05rem;
    --text-lg: clamp(1.15rem, 2.5dvi, 1.35rem);
    --text-display: clamp(2.25rem, 6dvi + 1rem, 3.75rem);

    --radius: 0.5rem;
    --content-max: 42rem;

    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --duration: 180ms;
  }

  /* Theme tokens: custom properties (--name) set per color scheme; use via var(--name). */
  :root,
  [data-theme="light"] {
    --bg: #ffffff;
    --bg-elevated: #ffffff;
    --fg: #141210; /* foreground: default text and icon color on --bg */
    --fg-muted: color-mix(in oklab, var(--fg) 58%, transparent);
    --border: color-mix(in oklab, var(--fg) 12%, transparent);
    --accent: #0d5c63;
    --accent-fg: #f4fbfb;
    --glow: color-mix(in oklab, var(--accent) 22%, transparent);
  }

  [data-theme="dark"] {
    color-scheme: dark;
    --bg: #0e0d0c;
    --bg-elevated: #171514;
    --fg: #ece8e2; /* foreground: default text and icon color on --bg */
    --fg-muted: color-mix(in oklab, var(--fg) 62%, transparent);
    --border: color-mix(in oklab, var(--fg) 14%, transparent);
    --accent: #6ec9c9;
    --accent-fg: #041012;
    --glow: color-mix(in oklab, var(--accent) 18%, transparent);
  }

  @media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
      color-scheme: dark;
      --bg: #0e0d0c;
      --bg-elevated: #171514;
      --fg: #ece8e2; /* foreground: default text and icon color on --bg */
      --fg-muted: color-mix(in oklab, var(--fg) 62%, transparent);
      --border: color-mix(in oklab, var(--fg) 14%, transparent);
      --accent: #6ec9c9;
      --accent-fg: #041012;
      --glow: color-mix(in oklab, var(--accent) 18%, transparent);
    }
  }

  html {
    font-family: var(--font-sans);
    font-size: 100%;
    background: var(--bg);
    color: var(--fg);
    scroll-behavior: smooth;
  }

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

  body {
    font-size: var(--text-base);
    text-rendering: optimizeLegibility;
  }

  ::selection {
    background: var(--glow);
    color: var(--fg);
  }

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

@layer layout {
  .skip {
    position: absolute;
    inset-inline-start: var(--space-md);
    inset-block-start: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--accent);
    color: var(--accent-fg);
    border-radius: var(--radius);
    font-weight: 600;
    text-decoration: none;
    z-index: 100;
    transform: translateY(-200%);
    transition: transform var(--duration) var(--ease-out);
  }

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

  .page {
    min-block-size: 100dvb;
    display: flex;
    flex-direction: column;
  }

  .shell {
    inline-size: min(100% - var(--space-lg) * 2, var(--content-max) + var(--space-xl));
    margin-inline: auto;
    padding-block: var(--space-2xl);
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
  }

  .site-header {
    display: block;
    padding-block-end: var(--space-lg);
    border-block-end: 1px solid var(--border);
  }

  .site-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
  }

  .site-footer {
    padding-block-start: var(--space-xl);
    border-block-start: 1px solid var(--border);
    font-size: var(--text-sm);
    color: var(--fg-muted);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    align-items: center;
    justify-content: space-between;
  }

  .footer-end {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-md);
  }
}

@layer components {
  .wordmark {
    display: inline-flex;
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.12em;
    inline-size: 100%;
    contain: layout style;
    font-family: var(--font-display);
    font-size: clamp(1.05rem, calc(0.45rem + 4.6vw), 2.45rem);
    font-weight: 600;
    letter-spacing: -0.02em;
    text-decoration: none;
    color: inherit;
    text-transform: uppercase;
  }

  .wordmark-dot {
    flex-shrink: 0;
    inline-size: 1.5em;
    block-size: 1.5em;
    margin-inline: 0.1em;
    transition: margin-inline 0.32s var(--ease-out);
  }

  .wordmark:hover .wordmark-dot {
    margin-inline: 1em;
  }

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

  .wordmark-dot__ring {
    fill: none;
    stroke: transparent;
    stroke-width: 1;
    transition: stroke 0.32s var(--ease-out);
  }

  .wordmark-dot__dot {
    fill: var(--fg);
  }


  .wordmark:hover .wordmark-dot__ring {
    stroke: var(--fg);
    fill: none;
  }

  .theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    color: inherit;
    cursor: pointer;
    transition:
      background var(--duration) var(--ease-out),
      border-color var(--duration) var(--ease-out),
      transform var(--duration) var(--ease-out);
    gap: 6px;
  }

  .theme-toggle:hover {
    border-color: color-mix(in oklab, var(--accent) 45%, var(--border));
  }

  .theme-toggle:active {
    transform: scale(0.96);
  }

  .theme-toggle svg {
    inline-size: 1.25rem;
    block-size: 1.25rem;
  }

  .hero {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
  }

  .hero-intro {
    max-inline-size: 42rem;
    margin-inline: auto;
    padding-inline: 0.5rem;
    margin-block-start: 1rem;
    margin-block-end: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }

  .hero-avatar-wrap {
    position: relative;
    inline-size: 140px;
    block-size: 140px;
    flex-shrink: 0;
  }

  @media (min-width: 80rem) {
    .hero-avatar-wrap {
      inline-size: 220px;
      block-size: 220px;
    }
  }

  .hero-avatar {
    inline-size: 100%;
    block-size: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #fff;
    box-sizing: border-box;
    opacity: 0;
    transition: opacity 200ms var(--ease-out);
  }

  .hero-avatar.is-loaded {
    opacity: 1;
  }

  .hero-tagline {
    margin: 0;
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 200;
    line-height: 1.45;
    text-align: center;
    color: var(--fg);
    max-inline-size: 100%;
  }

  @media (min-width: 48rem) {
    .hero-tagline {
      font-size: 1.5rem;
    }
  }

  .hero-tagline__strong {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    font-weight: 500;
  }

  .hero-tagline__text {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
  }

  .hero-tagline__icon {
    display: inline-flex;
    inline-size: 1.05em;
    block-size: 1.05em;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.4;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex: 0 0 auto;
  }

  .hero-tagline__break {
    display: block;
  }

  .hoverhlt {
    color: transparent;
    background-image: linear-gradient(120deg, #7fa9dc 10%, var(--accent) 30%, #9966d3 84%);
    -webkit-background-clip: text;
    background-clip: text;
    filter: brightness(1.15);
  }

  .hero h1 {
    font-family: var(--font-display);
    font-size: var(--text-display);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.08;
  }

  .hero .lede {
    font-size: var(--text-lg);
    color: var(--fg-muted);
    max-inline-size: 60ch;
  }

  .hero .lede strong {
    color: var(--fg);
    font-weight: 600;
  }

  .nav-primary {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-block-start: var(--space-md);
    padding: 0;
    list-style: none;
  }

  .nav-primary a {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    color: inherit;
    text-decoration: none;
    font-weight: 500;
    font-size: var(--text-sm);
    transition:
      border-color var(--duration) var(--ease-out),
      background var(--duration) var(--ease-out),
      color var(--duration) var(--ease-out);
  }

  .nav-primary a[aria-current="page"] {
    border-color: color-mix(in oklab, var(--accent) 55%, var(--border));
    background: color-mix(in oklab, var(--accent) 12%, var(--bg-elevated));
    color: var(--fg);
  }

  .nav-primary a:hover {
    border-color: color-mix(in oklab, var(--accent) 45%, var(--border));
  }

  .section-title {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg);
    line-height: 1;
    margin-block-end: var(--space-md);
  }

  .section-subtitle {
    margin: calc(var(--space-md) * -0.6) 0 var(--space-md);
    font-size: var(--text-sm);
    line-height: 1.45;
    color: var(--fg-muted);
    max-inline-size: 72ch;
  }

  .contact-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm);
    list-style: none;
    padding: 0;
  }

  .contact-list a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    inline-size: 2.75rem;
    block-size: 2.75rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    color: inherit;
    text-decoration: none;
    transition:
      border-color var(--duration) var(--ease-out),
      background var(--duration) var(--ease-out),
      transform var(--duration) var(--ease-out);
  }

  .contact-list a:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
  }

  .contact-list svg {
    inline-size: 1.25rem;
    block-size: 1.25rem;
  }

  .experience-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0;
    border-block: 1px solid var(--border);
  }

  .experience-item {
    padding-block: 0.75rem;
    border-block-end: 1px solid var(--border);
  }

  .experience-item:last-child {
    border-block-end: 0;
  }

  .experience-item__title {
    font-size: 0.98rem;
    line-height: 1.35;
    color: var(--fg);
  }

  .experience-item__period {
    margin-block-start: 0.1rem;
    font-size: var(--text-sm);
    letter-spacing: 0.02em;
    color: var(--fg-muted);
  }

  .experience-item__description {
    margin-block-start: 0.3rem;
    max-inline-size: 70ch;
    font-size: var(--text-sm);
    line-height: 1.45;
    color: var(--fg-muted);
  }

  .projects-grid {
    display: grid;
    gap: var(--space-sm);
    list-style: none;
    padding: 0;
    margin: 0;
  }
  
  .projects-grid > li .project-card {
    text-align: center;
    align-items: center;
  }

  .project-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    min-block-size: 7.5rem;
    padding: var(--space-md);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    color: inherit;
    text-decoration: none;
    transition:
      border-color var(--duration) var(--ease-out),
      background var(--duration) var(--ease-out),
      transform var(--duration) var(--ease-out);
  }

  .project-card__icon {
    inline-size: 2.25rem;
    block-size: 2.25rem;
    color: var(--fg);
    flex-shrink: 0;
    margin-block-end: 0.2rem;
  }

  .project-card:hover {
    border-color: color-mix(in oklab, var(--accent) 45%, var(--border));
    transform: translateY(-2px);
  }

  .project-card__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--fg);
    text-transform: uppercase;
  }

  .project-card__description {
    font-size: var(--text-sm);
    line-height: 1.45;
    color: var(--fg-muted);
    max-inline-size: 58ch;
  }

  .stack-grid {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
  }

  @media (min-width: 38rem) {
    .stack-grid {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }
  }

  @media (min-width: 56rem) {
    .stack-grid {
      grid-template-columns: repeat(4, minmax(0, 1fr));
    }
  }

  .stack-chip {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-block-size: 2.75rem;
    padding: 0.5rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-elevated);
    color: inherit;
    text-decoration: none;
    font-size: 0.88rem;
    line-height: 1.2;
    transition:
      border-color var(--duration) var(--ease-out),
      transform var(--duration) var(--ease-out);
  }

  .stack-chip:hover {
    border-color: color-mix(in oklab, var(--accent) 45%, var(--border));
    transform: translateY(-1px);
  }

  .stack-chip img {
    inline-size: 1.4rem;
    block-size: 1.4rem;
    flex-shrink: 0;
  }

  .visually-hidden {
    position: absolute;
    inline-size: 1px;
    block-size: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
}