:root {
  --color-bg: #C4BFB1;
  --color-surface: #B5B0A2;
  --color-border: #9C9788;
  --color-text: #1C1B18;
  --color-text-muted: #3E3C36;
  --color-text-subtle: #474335;
  --color-accent: #6E2B0E;
  --color-accent-pill: #6E2B0E;
  --color-accent-hover: #5A2209;
  --color-focus: #E05A38;
  --font-display: 'Lora', Georgia, serif;
  --font-body: 'Nunito Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: ui-monospace, 'Cascadia Code', 'Source Code Pro', monospace;
}
[data-theme="dark"] {
  --color-bg: #1C1B18;
  --color-surface: #28271F;
  --color-border: #3E3C36;
  --color-text: #D8D3C7;
  --color-text-muted: #B5B0A2;
  --color-text-subtle: #9A948B;
  --color-accent: #E8805F;
  --color-accent-pill: #E05A38;
  --color-accent-hover: #F09878;
  --color-focus: #E05A38;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #1C1B18;
    --color-surface: #28271F;
    --color-border: #3E3C36;
    --color-text: #D8D3C7;
    --color-text-muted: #B5B0A2;
    --color-text-subtle: #9A948B;
    --color-accent: #E8805F;
    --color-accent-pill: #E05A38;
    --color-accent-hover: #F09878;
    --color-focus: #E05A38;
  }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}
body { font-family: var(--font-body); font-size: 1rem; line-height: 1.7; color: var(--color-text); background-color: var(--color-bg); -webkit-font-smoothing: antialiased; padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left); }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 2px; transition: color 0.15s ease; }
a:hover { color: var(--color-accent-hover); }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 2px; }
:focus:not(:focus-visible) { outline: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 900; line-height: 1.15; letter-spacing: -0.02em; color: var(--color-text); }
p { max-width: 65ch; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

/* ── Skip Link ── */
.skip-link { position: absolute; top: 0.5rem; left: 0.5rem; padding: 0.5rem 1rem; background: var(--color-text); color: var(--color-bg); font-family: var(--font-mono); font-size: 0.8125rem; text-decoration: none; z-index: 100; transform: translateY(-200%); transition: transform 0.15s ease; }
.skip-link:focus { transform: translateY(0); }

/* ── Layout ── */
.wrapper { width: min(52rem, 100% - 2rem * 2); margin-inline: auto; }

/* ── Header ── */
.site-header { padding: 1rem 0; border-bottom: 1.5px solid var(--color-text); }
.site-header__inner { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.site-logo { font-family: var(--font-display); font-size: 1.125rem; font-weight: 900; color: var(--color-text); text-decoration: none; letter-spacing: -0.02em; }
.site-logo:hover { color: var(--color-text); }
.site-nav { display: flex; align-items: center; gap: 1.5rem; }
.site-nav__list { display: flex; gap: 1.5rem; }
.site-nav__link { font-family: var(--font-mono); font-size: 0.875rem; letter-spacing: 0.12em; text-transform: uppercase; text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 2px; text-decoration-color: transparent; color: var(--color-text-muted); transition: color 0.15s ease, text-decoration-color 0.15s ease; }
.site-nav__link:hover, .site-nav__link[aria-current="page"] { color: var(--color-text); }
.site-nav__link[aria-current="page"] { text-decoration-color: var(--color-accent); }

/* ── Mobile Menu ── */
.menu-toggle { display: none; width: 2rem; height: 2rem; flex-direction: column; justify-content: center; gap: 5px; z-index: 60; }
.menu-toggle span { display: block; width: 100%; height: 2px; background: var(--color-text); transition: transform 0.2s ease, opacity 0.2s ease; }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
body.menu-open { overflow: hidden; }

/* ── Theme Toggle ── */
.theme-toggle { width: 2rem; height: 2rem; border-radius: 50%; border: 1.5px solid var(--color-text-muted); display: flex; align-items: center; justify-content: center; transition: border-color 0.15s ease; }
.theme-toggle:hover { border-color: var(--color-text); }
.theme-toggle svg { width: 1rem; height: 1rem; fill: none; stroke: currentColor; stroke-width: 2; }

/* ── Hero ── */
.hero { padding: 5rem 0 3rem; text-align: left; }
.hero__title { font-size: 2.5rem; margin-bottom: 1.5rem; }
.hero__intro { color: var(--color-text-muted); max-width: 50ch; line-height: 1.7; }

/* ── Project Index ── */
.project-index { padding: 3rem 0 4rem; }
.project-index__list { border-top: none; }

.project-row { display: block; text-decoration: none; color: inherit; padding: 2rem 1.5rem; border-left: 3px solid transparent; border-radius: 4px; transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease; position: relative; }
.project-row + .project-row::before { content: ''; position: absolute; top: 0; left: 1.5rem; right: 1.5rem; height: 1px; background: var(--color-border); }
.project-row:hover { background: var(--color-surface); border-left-color: var(--color-accent); transform: translateX(4px); color: inherit; }

.project-row__top { display: flex; align-items: baseline; gap: 1rem; }
.project-row__title { font-family: var(--font-display); font-size: 1.75rem; font-weight: 900; flex: 1; letter-spacing: -0.02em; line-height: 2.4rem; }
.project-row__pill { font-family: var(--font-mono); font-size: 0.8125rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-text-subtle); white-space: nowrap; flex-shrink: 0; }

.project-row__details { margin-top: 0.75rem; }
.project-row__desc { color: var(--color-text-muted); line-height: 1.6; max-width: 55ch; }
.project-row__toolbox { font-family: var(--font-mono); font-size: 0.875rem; color: var(--color-text-subtle); margin-top: 0.75rem; letter-spacing: 0.02em; font-style: italic; }
.project-row__cta { display: inline-block; font-family: var(--font-mono); font-size: 0.875rem; font-weight: 600; color: var(--color-accent); text-decoration: none; margin-top: 1.25rem; transition: color 0.15s ease; }
.project-row__cta::before { content: '— '; }
.project-row__cta:hover { color: var(--color-accent-hover); }

/* ── Divider with Cat ── */
.divider { border: none; border-top: 1.5px solid var(--color-text); margin: 0; }
.divider-with-cat { position: relative; margin-bottom: 0.5rem; margin-top: 0.625rem; }
.divider-with-cat .cat-shelf { position: absolute; right: 1rem; top: -7.8rem; z-index: 2; }

/* ── Footer ── */
.site-footer { padding: 1.5rem 0 1rem; border-top: 1.5px solid var(--color-text); }
.site-footer__inner { display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: 0.5rem; }
.site-footer__text { font-family: var(--font-mono); font-size: 0.875rem; color: var(--color-text-subtle); }

/* ── Cat ── */
.cat-shelf svg { width: 300px; height: auto; display: block; }
.cat-shelf svg #shelf { display: none; }
.cat-shelf svg #leg-back path { fill: var(--color-bg); }
.cat-pupil { transition: opacity 0.3s ease; pointer-events: none; }
#paw-front { transform-origin: 210px 625px; }
#paw-back { transform-origin: 305px 630px; }
@media (prefers-reduced-motion: reduce) { .cat-shelf svg * { animation: none !important; } .cat-pupil { display: none; } }

/* ── Cat SVG Animations ── */
#tail { transform-origin: 474px 627px; animation: tail-sway 5s ease-in-out infinite; }
#ear-right { transform-origin: 248px 470px; animation: ear-twitch-r 4s ease-in-out infinite; }
#ear-left { transform-origin: 140px 530px; animation: ear-twitch-l 5s ease-in-out infinite; }
#whiskers { transform-origin: 240px 545px; animation: whisker-twitch 3.5s ease-in-out infinite; }
@keyframes tail-sway { 0%, 100% { transform: rotate(0deg); } 25% { transform: rotate(18deg); } 75% { transform: rotate(-12deg); } }
@keyframes ear-twitch-r { 0%, 85%, 100% { transform: rotate(0deg); } 90% { transform: rotate(-8deg); } 95% { transform: rotate(3deg); } }
@keyframes ear-twitch-l { 0%, 80%, 100% { transform: rotate(0deg); } 85% { transform: rotate(7deg); } 92% { transform: rotate(-3deg); } }
@keyframes whisker-twitch { 0%, 100% { transform: rotate(0deg); } 15% { transform: rotate(4deg); } 30% { transform: rotate(-3deg); } 45% { transform: rotate(0deg); } }
/* ── Responsive ── */
@media (max-width: 991px) {
  /* Hero */
  .hero { padding: 3.5rem 0 2rem; }
  .hero__title { font-size: 2rem; }

  /* Cat */
  .divider-with-cat { margin-top: 3rem; }

  /* Projects */
  .project-row { padding: 1.5rem 0; border-left: none; }
  .project-row:hover { transform: none; background: none; border-left-color: transparent; }
  .project-row + .project-row::before { left: 0; right: 0; }
  .project-row__top { flex-direction: column; gap: 0.25rem; }
  .project-row__title { font-size: 1.25rem; line-height: 1.45em; }
  .project-row__pill { order: -1; }
}

@media (max-width: 830px) {
  .divider-with-cat .cat-shelf { right: -1rem; }
}

@media (max-width: 690px) {
  /* Mobile menu */
  .site-nav { gap: 1.0625rem; }
  .menu-toggle { display: flex; order: 1; }
  .theme-toggle { order: 0; }

  .site-nav__list {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--color-bg);
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 1.5rem;
    z-index: 55;
    padding: 5rem 2rem 2rem;
    overflow: hidden;
  }
  .site-nav__list.open { display: flex; }
  .site-nav__list .site-nav__link { font-size: 1.25rem; letter-spacing: 0.15em; }

  .site-nav__list .mobile-sublinks { display: flex; flex-direction: column; align-items: flex-start; gap: 0.75rem; padding-left: 1.5rem; }
  .site-nav__list .mobile-sublinks a { font-family: var(--font-mono); font-size: 0.875rem; color: var(--color-text-muted); text-decoration: none; letter-spacing: 0.06em; }
  .site-nav__list .mobile-sublinks a:hover { color: var(--color-text); }

  /* Cat */
  .cat-shelf svg { width: 200px; }
  .divider-with-cat .cat-shelf { top: -5.2rem; right: -1rem; }
}

/* Hide mobile sublinks on desktop */
.mobile-sublinks { display: none; }

/* ── Case Study ── */
.case-study { padding: 2rem 0 4rem; }
.case-study__header { padding: 2rem 0 0; }
.case-study__pill { display: inline-block; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-text-subtle); margin-bottom: 1rem; }
.case-study__role { font-family: var(--font-mono); font-size: 0.875rem; color: var(--color-text-subtle); letter-spacing: 0.04em; margin-top: 0.5rem; }
.case-study__images { column-count: 2; column-gap: 0.75rem; max-width: 65ch; }
.case-study__images.masonry-2col { column-count: 2; }
.case-study__images figure { break-inside: avoid; margin-bottom: 0.75rem; border-radius: 8px; overflow: hidden; }
.case-study__images figure.wide { column-span: all; }
.case-study__images img { width: 100%; height: auto; object-fit: cover; display: block; }
@media (min-width: 40rem) { .case-study__images { column-count: 3; } }
@media (max-width: 30rem) { .case-study__images, .case-study__images.masonry-2col { column-count: 1; } }
.case-study__toolbox { font-family: var(--font-mono); font-size: 0.875rem; color: var(--color-text-subtle); font-style: italic; font-weight: 500; }

/* ── Flow (vertical spacing) ── */
.flow > * + * { margin-block-start: 1.25rem; }

/* ── About ── */
.about__layout { display: grid; grid-template-columns: 1fr; gap: 2rem; padding: 3rem 0; }
@media (min-width: 992px) { .about__layout { grid-template-columns: 12rem 1fr; } }
.about__photo { width: 100%; max-width: 12rem; aspect-ratio: 1; background: var(--color-surface); border-radius: 12px; object-fit: cover; }

/* ── Back Link ── */
.back-link { display: inline-block; margin-top: 1.5rem; font-family: var(--font-mono); font-size: 1rem; margin-right: 2rem; }