/* ═══════════════════════════════════════════════════════════
   Summer Ann — Monochrome Typographic Portfolio
   Scale, contrast, density. No color, no decoration.
   ═══════════════════════════════════════════════════════════ */

/* ── Tokens ───────────────────────────────────────────────── */

:root {
  /* Palette — monochrome only */
  --black: #0A0A0A;
  --white: #FAFAFA;
  --gray: #8A8A8A;
  --gray-dim: rgba(138, 138, 138, 0.15);
  --rule: rgba(138, 138, 138, 0.2);

  /* Foreground / background (light mode default) */
  --fg: var(--black);
  --fg-muted: var(--gray);
  --bg: var(--white);
  --bg-inv: var(--black);
  --fg-inv: var(--white);

  /* Typography */
  --font-display: "General Sans", "Inter", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", monospace;

  /* Display scale — aggressive */
  --display-xl: clamp(5rem, 12vw, 11.25rem);   /* 80-180px */
  --display-lg: clamp(4rem, 9vw, 8.75rem);     /* 64-140px */
  --display-md: clamp(3rem, 6.5vw, 6rem);      /* 48-96px */
  --display-sm: clamp(2rem, 4vw, 4.5rem);      /* 32-72px */

  /* Body / micro */
  --text-body: 1rem;        /* 16px */
  --text-body-lg: 1.125rem; /* 18px */
  --text-micro: 0.75rem;    /* 12px */
  --text-micro-sm: 0.6875rem; /* 11px */

  /* Spacing — 8px grid */
  --sp-1: 0.5rem;
  --sp-2: 1rem;
  --sp-3: 1.5rem;
  --sp-4: 2rem;
  --sp-6: 3rem;
  --sp-8: 4rem;
  --sp-12: 6rem;
  --sp-16: 8rem;
  --sp-24: 12rem;

  /* Layout */
  --max-w: 1400px;
  --gutter: clamp(1.5rem, 5vw, 4rem);
  --anchor-left: var(--gutter);

  /* Nav blur */
  --bg-blur: rgba(250, 250, 250, 0.85);

  /* Motion */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 180ms;
  --dur-reveal: 700ms;
}

/* ── Dark mode ────────────────────────────────────────────── */

[data-theme="dark"] {
  --fg: var(--white);
  --fg-muted: var(--gray);
  --bg: var(--black);
  --bg-inv: var(--white);
  --fg-inv: var(--black);
  --rule: rgba(138, 138, 138, 0.15);
  --bg-blur: rgba(10, 10, 10, 0.85);
}

/* ── Reset ────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-display);
  font-size: var(--text-body);
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background 500ms var(--ease-in-out), color 500ms var(--ease-in-out);
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3, h4, p { margin: 0; }
ul { margin: 0; padding: 0; }

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

/* ── Contextual Cursor (desktop only) ─────────────────────── */

@media (hover: hover) and (pointer: fine) {
  .cursor-label {
    position: fixed;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 100;
    font-family: var(--font-mono);
    font-size: var(--text-micro-sm);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--fg-muted);
    opacity: 0;
    transition: opacity 150ms ease;
    transform: translate(16px, 16px);
    white-space: nowrap;
  }

  .cursor-label.is-visible {
    opacity: 1;
  }
}

/* ── Navigation ───────────────────────────────────────────── */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: var(--sp-3) var(--gutter);
  background: var(--bg-blur);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__name {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg);
  position: relative;
  padding: 6px 14px;
}

.nav__name::after {
  content: "";
  position: absolute;
  inset: -4px -10px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 44' fill='none'%3E%3Cpath d='M18 6C10 8 4 14 3 22c-1 9 7 16 18 18 14 2 38 3 62 1 18-2 30-6 33-13 3-8-3-17-16-21C82 3 60 2 40 3 28 4 20 5 18 6z' stroke='%230A0A0A' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E") center/contain no-repeat;
  opacity: 0;
  transition: opacity 250ms var(--ease-out-expo);
  pointer-events: none;
}

[data-theme="dark"] .nav__name::after {
  filter: invert(1);
}

.nav__name:hover::after {
  opacity: 1;
}


.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
}

.nav__links a,
.nav__links button {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg);
  opacity: 0.5;
  transition: opacity var(--dur-fast) ease;
  position: relative;
}

.nav__links a:hover,
.nav__links button:hover {
  opacity: 1;
}

/* Active state: inversion */
.nav__links a.is-active {
  opacity: 1;
}


/* Theme toggle — lightbulb */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--fg);
  opacity: 0.5;
  transition: opacity var(--dur-fast) ease;
  padding: 2px;
}

.theme-toggle:hover { opacity: 1; }

.theme-toggle__bulb {
  display: block;
}

.bulb-glass {
  fill: none;
  transition: fill 300ms ease;
}

[data-theme="light"] .bulb-glass {
  fill: var(--fg);
}

.bulb-rays {
  opacity: 0;
  transition: opacity 300ms ease;
}

[data-theme="light"] .bulb-rays {
  opacity: 0.35;
}

/* ── Mono Label (shared) ──────────────────────────────────── */

.mono {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.mono--sm {
  font-size: var(--text-micro-sm);
  letter-spacing: 0.08em;
}

/* ── Hero ─────────────────────────────────────────────────── */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--sp-16) var(--gutter) var(--sp-8);
  max-width: var(--max-w);
  margin: 0 auto;
  overflow: hidden;
}

/* DNA Helix — hero 3D visual */
.hero__helix {
  position: absolute;
  top: 0;
  right: 0;
  width: 45%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

.hero__helix canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* DNA Helix word formation — hero background */
.hero__dna {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  overflow: hidden;
}

.dna-word {
  position: absolute;
  top: 0;
  left: 0;
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #999;
  white-space: nowrap;
  will-change: transform, opacity;
}

.dna-rung {
  position: absolute;
  top: 0;
  height: 1px;
  background: #999;
  pointer-events: none;
  will-change: transform, opacity, width, left;
}

/* Ensure hero text stays above any background */
.hero__eyebrow,
.hero__name,
.hero__tagline,
.hero__meta,
.hero__links {
  position: relative;
  z-index: 1;
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: var(--sp-4);
}

.hero__name {
  font-family: var(--font-display);
  font-size: var(--display-xl);
  font-weight: 500;
  font-style: normal;
  line-height: 0.92;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}

/* Each word is a block for stacking / overlap control */
.hero__name-line {
  display: block;
}

.hero__name-line:last-child {
  padding-left: 0.15em;
}

/* Word/char animation targets */
.hero__name .word {
  display: inline-block;
  overflow: hidden;
}

.hero__name .word-inner {
  display: inline-block;
}

.hero__heart {
  display: inline-block;
  width: clamp(2.5rem, 5vw, 5rem);
  height: auto;
  vertical-align: middle;
  margin-left: 0.1em;
  opacity: 0.7;
}

.hero__tagline {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 1.8vw, var(--text-body-lg));
  font-weight: 400;
  color: var(--fg-muted);
  max-width: 36rem;
  line-height: 1.5;
  margin-top: var(--sp-4);
}
.hero__quote {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  color: var(--fg-muted);
  max-width: 32rem;
  line-height: 1.6;
  margin-top: var(--sp-3);
  padding-left: var(--sp-3);
  border-left: 2px solid var(--rule);
  opacity: 0.6;
}
.hero__quote p {
  margin: 0;
  font-style: italic;
}
.hero__quote cite {
  display: block;
  margin-top: var(--sp-1);
  font-style: normal;
  opacity: 0.7;
}

.hero__meta {
  display: flex;
  gap: var(--sp-4);
  margin-top: var(--sp-6);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--rule);
}

.hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.hero__meta-label {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.hero__meta-value {
  font-family: var(--font-display);
  font-size: var(--text-body);
  font-weight: 500;
}

/* Hero links — text-only, underline on hover */
.hero__links {
  display: flex;
  gap: var(--sp-4);
  margin-top: var(--sp-6);
}

.text-link {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg);
  position: relative;
  transition: color var(--dur-fast) ease;
}

.text-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--fg);
  clip-path: inset(0 100% 0 0);
  transition: clip-path 220ms var(--ease-out-expo);
}

.text-link:hover::after {
  clip-path: inset(0 0 0 0);
}

/* ── Hero Character Critters (desktop hover — playful) ────── */

@media (hover: hover) and (pointer: fine) {
  .hero-char {
    display: inline-block;
    position: relative;
    cursor: default;
    transition: transform 250ms var(--ease-out-expo);
  }

  .hero-char:hover {
    transform: translateY(-8px) rotate(var(--char-tilt, 0deg));
  }

  .hero-critter {
    position: absolute;
    bottom: 85%;
    left: 50%;
    width: 28px;
    height: 28px;
    pointer-events: none;
    color: var(--fg);
    animation: critter-pop 400ms var(--ease-out-expo) forwards;
    z-index: 10;
  }

  .hero-critter svg {
    width: 100%;
    height: 100%;
  }

  @keyframes critter-pop {
    0%   { transform: translateX(-50%) scale(0) translateY(8px); opacity: 0; }
    50%  { transform: translateX(-50%) scale(1.2) translateY(-2px); opacity: 0.55; }
    100% { transform: translateX(-50%) scale(1) translateY(0); opacity: 0.55; }
  }

  .hero-critter.is-leaving {
    animation: critter-hide 180ms ease forwards;
  }

  @keyframes critter-hide {
    to { transform: translateX(-50%) scale(0) translateY(4px); opacity: 0; }
  }
}

/* ── Section (shared) ─────────────────────────────────────── */

.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--sp-12) var(--gutter);
}

/* Inverted section (black bg) */
.section--inv {
  background: var(--bg-inv);
  color: var(--fg-inv);
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

.section--inv .section__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section--inv .mono,
.section--inv .hero__meta-label {
  color: rgba(250, 250, 250, 0.4);
}

.section__header {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  margin-bottom: var(--sp-8);
}

.section__number {
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  color: var(--fg-muted);
  letter-spacing: 0.04em;
  flex-shrink: 0;
  padding-top: 0.3rem;
}

.section__title {
  font-family: var(--font-display);
  font-size: var(--display-sm);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.section__icon {
  display: inline-block;
  width: clamp(56px, 6vw, 80px);
  height: clamp(56px, 6vw, 80px);
  object-fit: contain;
  vertical-align: middle;
  margin-left: 8px;
  opacity: 0.5;
}

.section__title {
  white-space: nowrap;
}

[data-theme="dark"] .section__icon {
  filter: invert(1);
}

.section__subtitle {
  margin-top: var(--sp-1);
  color: var(--fg-muted);
  font-size: var(--text-body);
  line-height: 1.5;
  max-width: 36rem;
}

.section__header > .text-link {
  flex-shrink: 0;
  margin-top: 0.5rem;
}

/* ── Research Entry ───────────────────────────────────────── */

.research-grid {
  display: grid;
  gap: 0;
}

.research-entry {
  padding: var(--sp-3) 0;
  border-top: 1px solid var(--rule);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-1) var(--sp-4);
  align-items: start;
  transition: background var(--dur-fast) ease;
}

.research-entry:last-child {
  border-bottom: 1px solid var(--rule);
}

.research-entry__number {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  color: var(--fg-muted);
  letter-spacing: 0.08em;
  padding-top: 0.4rem;
}

.research-entry__content {
  min-width: 0;
}

.research-entry__meta {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: var(--sp-2);
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

.research-entry__title {
  font-family: var(--font-display);
  font-size: clamp(1.125rem, 2.2vw, 1.5rem);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: var(--sp-1);
}
.research-entry__title a {
  color: inherit;
  text-decoration: none;
}
.research-entry__title a:hover {
  text-decoration: underline;
}

.research-entry__desc {
  color: var(--fg-muted);
  line-height: 1.6;
  max-width: 38rem;
  transition: font-weight var(--dur-fast) ease, color var(--dur-fast) ease;
}

.research-entry:hover .research-entry__desc {
  font-weight: 500;
  color: var(--fg);
}

.research-entry__details {
  margin-top: var(--sp-2);
  padding-left: 0;
  list-style: none;
  color: var(--fg-muted);
  font-size: var(--text-micro);
  line-height: 1.7;
  display: none;
}

.research-entry__details.is-open {
  display: block;
}

.research-entry__link {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  text-decoration: none;
  margin-top: var(--sp-1);
  display: inline-block;
  transition: color var(--dur-fast) ease;
}
.research-entry__link:hover {
  color: var(--fg);
}

.research-entry__toggle {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-top: var(--sp-1);
  transition: color var(--dur-fast) ease;
}

.research-entry__toggle:hover {
  color: var(--fg);
}

.research-entry__details li {
  padding-left: 1rem;
  position: relative;
}

.research-entry__details li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--fg-muted);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
  margin-top: var(--sp-2);
}

.tag {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  padding: 2px 0;
}

.tag + .tag::before {
  content: "/";
  margin-right: var(--sp-1);
  color: var(--rule);
}

/* ── Agent Words (typographic scene) ──────────────────────── */

/* ── About Photo (duotone, clip-path reveal) ─────────────── */

/* ── About Layout (photo + cards side by side) ────────────── */

.about-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-8);
  align-items: start;
}

.about-photo {
  aspect-ratio: 3/4;
  overflow: hidden;
  position: relative;
  background: var(--bg);
  isolation: isolate;
  clip-path: inset(0 100% 0 0);
}

.about-photo.is-revealed {
  clip-path: inset(0 0 0 0);
  transition: clip-path 800ms var(--ease-out-expo);
}

.about-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 65% 35%;
  filter: grayscale(1) contrast(1.15);
  mix-blend-mode: luminosity;
}

.about-photo__grain {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, var(--fg) 1px, transparent 1px);
  background-size: 4px 4px;
  mix-blend-mode: overlay;
  pointer-events: none;
  opacity: 0.1;
}

/* ── About Cards ──────────────────────────────────────────── */

.about-grid {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.about-card {
  padding-top: var(--sp-3);
  border-top: 1px solid var(--rule);
  filter: blur(6px);
  opacity: 0;
  transform: translateY(20px);
  transition: filter 0.8s ease, opacity 0.8s ease, transform 0.8s ease;
}
.about-card.is-revealed {
  filter: blur(0);
  opacity: 1;
  transform: translateY(0);
}

.about-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-body-lg);
  font-weight: 500;
  line-height: 1.35;
  margin-bottom: var(--sp-1);
  margin-top: var(--sp-2);
}

.about-card__head {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.about-card__icon {
  width: 48px;
  height: 48px;
  object-fit: contain;
  opacity: 0.6;
  transition: opacity 300ms ease;
}

[data-theme="dark"] .about-card__icon {
  filter: invert(1);
}

.about-card:hover .about-card__icon {
  opacity: 1;
}

.about-card p {
  color: var(--fg-muted);
  font-size: var(--text-micro);
  line-height: 1.7;
}

/* ── Education ─────────────────────────────────────────────── */

.education {
  margin-top: var(--sp-6);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--rule);
  position: relative;
}
.education__heading {
  margin-bottom: var(--sp-3);
  opacity: 0.5;
}

/* ── Sisyphus illustration ────────────────────────────────── */
.sisyphus-wrap {
  position: absolute;
  right: 0;
  top: -0.5rem;
  width: 180px;
  pointer-events: none;
  opacity: 0.45;
}
.sisyphus-img {
  width: 100%;
  height: auto;
  display: block;
}
[data-theme="dark"] .sisyphus-img {
  filter: invert(1);
}

.sisyphus-wrap--article {
  position: relative;
  right: auto;
  top: auto;
  margin: var(--sp-6) auto 0;
  width: 120px;
}

.sisyphus-wrap--journal {
  position: relative;
  right: auto;
  top: auto;
  margin: var(--sp-4) auto var(--sp-5);
  width: 160px;
}

@media (max-width: 768px) {
  .sisyphus-wrap {
    position: relative;
    right: auto;
    top: auto;
    margin: var(--sp-2) auto var(--sp-3);
    width: 150px;
  }
}
.education__items {
  display: flex;
  gap: var(--sp-6);
  flex-wrap: wrap;
}
.education__item {
  flex: 1;
  min-width: 220px;
}
.education__school {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--text-body);
  color: var(--fg);
}
.education__detail {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  color: var(--fg-muted);
  margin-top: 4px;
}
.education__year {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  opacity: 0.4;
  margin-top: 2px;
}

/* ── Comments ──────────────────────────────────────────────── */

.comments-section {
  margin-top: var(--sp-6);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--rule);
}
.comments__heading {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.5;
  margin-bottom: var(--sp-3);
}
.comments__list {
  margin-bottom: var(--sp-4);
}
.comments__empty {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  opacity: 0.35;
}
.comments__item {
  padding: var(--sp-2) 0;
  border-bottom: 1px solid var(--rule);
}
.comments__item:first-child {
  border-top: 1px solid var(--rule);
}
.comments__meta {
  display: flex;
  gap: var(--sp-2);
  align-items: baseline;
  margin-bottom: 4px;
}
.comments__author {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--text-sm);
  color: var(--fg);
}
.comments__date {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  opacity: 0.35;
}
.comments__body {
  font-size: var(--text-sm);
  line-height: 1.55;
  color: var(--fg);
  opacity: 0.8;
}
.comments__form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.comments__input,
.comments__textarea {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  padding: 8px 12px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--bg);
  color: var(--fg);
  outline: none;
  transition: border-color 0.2s ease;
}
.comments__input:focus,
.comments__textarea:focus {
  border-color: var(--fg-muted);
}
.comments__textarea {
  resize: vertical;
  min-height: 60px;
}
.comments__submit {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 8px 20px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--fg);
  color: var(--bg);
  cursor: pointer;
  transition: opacity 0.2s ease;
}
.comments__submit:hover {
  opacity: 0.8;
}

/* ── Word Spotlight (Practice section — desktop only) ─────── */

@media (hover: hover) and (pointer: fine) {
  .about-card p .hw,
  .hero__tagline .hw {
    transition: background 120ms ease, color 120ms ease;
    cursor: default;
    border-radius: 2px;
    padding: 0 2px;
    margin: 0 -2px;
  }

  .about-card p .hw.is-lit,
  .hero__tagline .hw.is-lit {
    background: var(--fg);
    color: var(--bg);
  }
}

/* ── Journal Preview ──────────────────────────────────────── */

.journal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.note-preview {
  padding-top: var(--sp-3);
  border-top: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  transition: border-color 300ms ease;
}

.note-preview:hover {
  border-color: var(--fg);
}

.note-preview__meta {
  display: flex;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  color: var(--fg-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}

.note-preview h3 {
  font-family: var(--font-display);
  font-size: var(--text-body-lg);
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: var(--sp-1);
}

.note-preview > p {
  color: var(--fg-muted);
  font-size: var(--text-micro);
  line-height: 1.6;
  flex: 1;
}

.note-preview__link {
  display: inline-block;
  margin-top: var(--sp-2);
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg);
  transition: opacity var(--dur-fast) ease;
}

.note-preview__link:hover { opacity: 0.6; }

/* ── Contact ──────────────────────────────────────────────── */

.contact-body {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--sp-8);
  align-items: start;
}

.contact-photos {
  display: flex;
  gap: var(--sp-2);
}

.contact-photo {
  aspect-ratio: 3/4;
  overflow: hidden;
  position: relative;
}

.contact-photo--sm {
  flex: 1;
  max-width: 160px;
}

.contact-photo--sm img {
  filter: grayscale(1) contrast(1.15);
}

.contact-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 70% 20%;
}

.contact-info > p {
  color: var(--fg-muted);
  max-width: 32rem;
  line-height: 1.6;
  margin-bottom: var(--sp-6);
}

.contact-links-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.contact-col {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.contact-col__label {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: var(--sp-1);
}

.contact-col a {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.04em;
  color: var(--fg);
  position: relative;
  transition: opacity var(--dur-fast) ease;
}

.contact-col a:hover { opacity: 0.6; }

.contact-col span:not(.contact-col__label) {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.04em;
  color: var(--fg);
  cursor: default;
  transition: opacity var(--dur-fast) ease;
}
.contact-col span:not(.contact-col__label):hover {
  opacity: 0.6;
}

/* ── Daily Quote ─────────────────────────────────────────── */

.daily-quote {
  margin: 0 0 var(--sp-6) 0;
  padding: var(--sp-5) 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.daily-quote__text {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  font-style: italic;
  color: var(--fg);
  margin: 0 0 var(--sp-3) 0;
}

.daily-quote__author {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--fg-muted);
  font-style: normal;
}

/* ── Marquee / Ticker ─────────────────────────────────────── */

.ticker {
  overflow: hidden;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: var(--sp-2) 0;
  white-space: nowrap;
}

.ticker__inner {
  display: inline-flex;
  gap: var(--sp-8);
  animation: ticker-scroll 30s linear infinite;
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.ticker__inner span {
  flex-shrink: 0;
}

@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .ticker__inner { animation: none; }
}

/* ── Decorative Doodles ───────────────────────────────────── */

.doodle {
  position: absolute;
  width: clamp(32px, 4vw, 56px);
  height: auto;
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
  user-select: none;
}
.doodle--lg { width: clamp(40px, 5vw, 72px); }
.doodle--sm { width: clamp(24px, 3vw, 40px); }

/* Section-level doodle wrapper — relative positioning anchor */
.section, .hero, .diorama-section, .ticker { position: relative; }

.doodle--r  { right: var(--gutter); }
.doodle--l  { left: var(--gutter); }
.doodle--tl { top: var(--sp-3); left: var(--gutter); }
.doodle--tr { top: var(--sp-3); right: var(--gutter); }
.doodle--bl { bottom: var(--sp-3); left: var(--gutter); }
.doodle--br { bottom: var(--sp-3); right: var(--gutter); }

.footer-doodle {
  display: inline-block;
  width: 28px;
  height: auto;
  vertical-align: middle;
  margin: 0 var(--sp-1);
  opacity: 0.4;
}

[data-theme="dark"] .doodle,
[data-theme="dark"] .footer-doodle {
  filter: invert(1);
}

@media (max-width: 640px) {
  .doodle { opacity: 0.08; }
}

/* ── Footer ───────────────────────────────────────────────── */

.site-footer {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--sp-4) var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.footer-nav {
  display: flex;
  gap: var(--sp-3);
}

.footer-nav a {
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--fg);
}

.footer-nav__sep {
  width: 1px;
  height: 12px;
  background: var(--rule);
  align-self: center;
}

/* ── 3D Diorama ──────────────────────────────────────────── */

.diorama-section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--sp-4) var(--gutter);
  display: none;
}
.diorama-section.open {
  display: block;
}

.diorama-container {
  position: relative;
  width: 100%;
  height: clamp(420px, 60vw, 720px);
  cursor: grab;
}

.diorama-container:active {
  cursor: grabbing;
}

.diorama-container canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

.diorama-loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.diorama-loading__text {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  animation: diorama-pulse 1.5s ease-in-out infinite;
}

@keyframes diorama-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.diorama-zoom {
  position: absolute;
  top: var(--sp-2);
  right: var(--sp-2);
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 4px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.diorama-zoom.visible {
  opacity: 1;
  pointer-events: auto;
}

/* ── Location nav panel ── */
.diorama-nav {
  position: absolute;
  top: var(--sp-2);
  left: var(--sp-2);
  z-index: 4;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.diorama-nav.visible {
  opacity: 1;
  pointer-events: auto;
}
.diorama-nav__toggle {
  width: 32px; height: 32px; border-radius: 50%;
  border: 1px solid var(--rule); background: var(--bg);
  color: var(--fg-muted); cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}
.diorama-nav__toggle:hover,
.diorama-nav__toggle.active { color: var(--fg); border-color: var(--fg); }
.diorama-nav__panel {
  display: none; position: absolute; top: 38px; left: 0;
  background: var(--bg); border: 1px solid var(--rule);
  border-radius: 8px; padding: 8px 0; min-width: 170px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  max-height: 340px; overflow-y: auto;
}
.diorama-nav__panel.open { display: block; }
.diorama-nav__section { padding: 4px 0; }
.diorama-nav__section + .diorama-nav__section { border-top: 1px solid var(--rule); }
.diorama-nav__heading {
  font-family: var(--font-mono); font-size: 9px; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--fg-muted); padding: 4px 14px 2px;
}
.diorama-nav__item {
  display: block; width: 100%; text-align: left; border: none;
  background: none; padding: 5px 14px; font-family: var(--font-mono);
  font-size: 12px; color: var(--fg); cursor: pointer;
  transition: background var(--dur-fast) ease;
}
.diorama-nav__item:hover { background: var(--rule); }

/* ── Onboarding hint ── */
.diorama-hint {
  position: absolute; bottom: 48px; left: 50%;
  transform: translateX(-50%);
  z-index: 4; pointer-events: none;
  background: var(--bg); border: 1px solid var(--rule);
  border-radius: 20px; padding: 6px 16px;
  font-family: var(--font-mono); font-size: 11px;
  color: var(--fg-muted); opacity: 1;
  transition: opacity 0.6s ease;
  white-space: nowrap;
}
.diorama-hint.hidden { opacity: 0; pointer-events: none; }
.diorama-controls {
  position: absolute;
  bottom: var(--sp-2);
  right: var(--sp-2);
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 6px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.diorama-controls.visible {
  opacity: 1;
  pointer-events: auto;
}

.diorama-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--rule);
  background: var(--bg);
  color: var(--fg-muted);
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--dur-fast) ease, border-color var(--dur-fast) ease;
}

.diorama-btn:hover {
  color: var(--fg);
  border-color: var(--fg);
}

.diorama-btn[disabled] {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

.diorama-btn.active {
  color: #ff8c30;
  border-color: #ff8c30;
}

.diorama-return-home {
  width: auto;
  border-radius: 16px;
  padding: 0 12px;
  font-size: 11px;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.agent-popup {
  position: absolute;
  display: none;
  transform: translateX(-50%);
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  color: var(--fg);
  pointer-events: none;
  z-index: 4;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  backdrop-filter: blur(6px);
}
.agent-popup strong {
  font-size: 12px;
  letter-spacing: 0.04em;
}
.agent-popup__spec {
  color: var(--fg-muted);
  font-size: 10px;
}
.agent-popup__status {
  color: var(--accent, #5b8fa8);
  font-size: 10px;
}
.agent-popup__dialogue {
  display: block;
  margin-top: 4px;
  font-style: italic;
  color: var(--fg);
  font-size: 10px;
  opacity: 0.75;
  max-width: 200px;
  white-space: normal;
}

.hover-label {
  position: absolute;
  display: none;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg);
  pointer-events: none;
  z-index: 5;
  white-space: nowrap;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  backdrop-filter: blur(4px);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.breadcrumb-nav {
  position: absolute;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: none;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg);
  z-index: 6;
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  backdrop-filter: blur(6px);
}
.breadcrumb-nav .bc-link {
  cursor: pointer;
  color: var(--fg-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.breadcrumb-nav .bc-link:hover {
  color: var(--fg);
}
.breadcrumb-nav .bc-sep {
  color: var(--fg-muted);
  margin: 0 2px;
}
.breadcrumb-nav .bc-exit {
  background: none;
  border: 1px solid var(--rule);
  border-radius: 4px;
  color: var(--fg-muted);
  font-size: 14px;
  line-height: 1;
  padding: 2px 6px;
  margin-left: 12px;
  cursor: pointer;
  vertical-align: middle;
}
.breadcrumb-nav .bc-exit:hover {
  color: var(--fg);
  border-color: var(--fg);
}

.content-panel {
  position: absolute;
  display: none;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 8px;
  padding: 12px 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--fg);
  z-index: 7;
  max-width: 260px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  backdrop-filter: blur(8px);
}
.content-panel strong {
  font-size: 12px;
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 4px;
}
.content-panel p {
  margin: 0;
  color: var(--fg-muted);
  font-size: 10px;
}
.content-panel .cp-close {
  position: absolute;
  top: 4px;
  right: 8px;
  cursor: pointer;
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1;
}
.content-panel .cp-close:hover {
  color: var(--fg);
}

/* ── Work Tabs ──────────────────────────────────────────── */

.work-tabs {
  display: flex;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
  border-bottom: 1px solid var(--rule);
}

.work-tab {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-2) 0;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  transition: color var(--dur-fast) ease;
}

.tab-icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
  vertical-align: -8px;
  margin-right: 6px;
  opacity: 0.5;
  transition: opacity var(--dur-fast) ease;
}

[data-theme="dark"] .tab-icon {
  filter: invert(1);
}

.work-tab:hover .tab-icon,
.work-tab.is-active .tab-icon {
  opacity: 1;
}

.work-tab:hover {
  color: var(--fg);
}

.work-tab.is-active {
  color: var(--fg);
  border-bottom-color: var(--fg);
}

.work-panel {
  display: none;
}

.work-panel.is-active {
  display: block;
}

/* ── Startup Carousel ──────────────────────────────────── */

.startup-carousel-wrap {
  position: relative;
}

.startup-grid {
  display: flex;
  gap: var(--sp-3);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--sp-2);
  cursor: grab;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.startup-grid::-webkit-scrollbar { display: none; }
.startup-grid:active { cursor: grabbing; }

.startup-entry {
  flex: 0 0 280px;
  min-height: 160px;
  padding: var(--sp-3);
  border: 1px solid var(--rule);
  scroll-snap-align: start;
  transition: transform 400ms var(--ease-out-expo), border-color 300ms ease, box-shadow 300ms ease;
  will-change: transform;
}

.startup-entry:hover {
  border-color: var(--fg);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

/* Staggered entrance */
.startup-entry {
  opacity: 0;
  animation: app-slide-in 500ms var(--ease-out-expo) forwards;
}
.startup-entry:nth-child(1) { animation-delay: 0ms; }
.startup-entry:nth-child(2) { animation-delay: 80ms; }
.startup-entry:nth-child(3) { animation-delay: 160ms; }
.startup-entry:nth-child(4) { animation-delay: 240ms; }

.startup-entry__type {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 2px;
}

.startup-entry__title {
  font-family: var(--font-display);
  font-size: var(--text-micro);
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 2px;
}

.startup-entry__desc {
  font-size: 10px;
  color: var(--fg-muted);
  line-height: 1.5;
}

/* ── App Carousel ─────────────────────────────────────── */

.app-carousel-wrap {
  position: relative;
}

.app-grid {
  display: flex;
  gap: var(--sp-3);
  overflow-x: auto;
  overflow-y: hidden;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--sp-2);
  cursor: grab;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.app-grid::-webkit-scrollbar { display: none; }
.app-grid:active { cursor: grabbing; }

.app-entry {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  flex: 0 0 220px;
  min-height: 140px;
  padding: var(--sp-3);
  border: 1px solid var(--rule);
  text-decoration: none;
  color: inherit;
  scroll-snap-align: start;
  transition: transform 400ms var(--ease-out-expo), border-color 300ms ease, box-shadow 300ms ease;
  will-change: transform;
}

.app-entry:hover {
  border-color: var(--fg);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

.app-entry__title {
  font-family: var(--font-display);
  font-size: var(--text-micro);
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: 2px;
}

.app-entry__desc {
  font-size: 10px;
  color: var(--fg-muted);
  line-height: 1.5;
  margin-bottom: var(--sp-1);
}

.app-entry__link {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  transition: color var(--dur-fast) ease;
}

.app-entry:hover .app-entry__link {
  color: var(--fg);
}

/* Carousel dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: var(--sp-2);
}

.carousel-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--rule);
  border: none;
  padding: 0;
  cursor: pointer;
  transition: background 300ms ease, transform 300ms ease;
}

.carousel-dot.is-active {
  background: var(--fg);
  transform: scale(1.3);
}

/* Staggered entrance */
@keyframes app-slide-in {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

.app-entry {
  opacity: 0;
  animation: app-slide-in 500ms var(--ease-out-expo) forwards;
}
.app-entry:nth-child(1) { animation-delay: 0ms; }
.app-entry:nth-child(2) { animation-delay: 60ms; }
.app-entry:nth-child(3) { animation-delay: 120ms; }
.app-entry:nth-child(4) { animation-delay: 180ms; }
.app-entry:nth-child(5) { animation-delay: 240ms; }
.app-entry:nth-child(6) { animation-delay: 300ms; }
.app-entry:nth-child(7) { animation-delay: 360ms; }

/* ── Subscribe Banner ─────────────────────────────────── */

.subscribe-banner {
  margin-top: var(--sp-8);
  padding: var(--sp-4) var(--sp-6);
  border: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3);
}

.subscribe-banner--compact {
  margin-top: var(--sp-4);
  padding: var(--sp-3) var(--sp-4);
}

.subscribe-banner__title {
  font-family: var(--font-display);
  font-size: var(--text-body);
  font-weight: 500;
  margin: 0;
}

.subscribe-banner__desc {
  font-size: var(--text-micro);
  color: var(--fg-muted);
  margin: 2px 0 0;
}

.subscribe-banner__text {
  flex: 1;
  min-width: 200px;
}

.subscribe-form {
  display: flex;
  gap: 8px;
}

.subscribe-input {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  padding: 8px 12px;
  border: 1px solid var(--rule);
  background: transparent;
  color: var(--fg);
  min-width: 200px;
  outline: none;
  transition: border-color 200ms ease;
}

.subscribe-input::placeholder {
  color: var(--fg-muted);
}

.subscribe-input:focus {
  border-color: var(--fg);
}

.subscribe-btn {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 8px 16px;
  border: 1px solid var(--fg);
  background: var(--fg);
  color: var(--bg);
  cursor: pointer;
  transition: opacity 200ms ease;
}

.subscribe-btn:hover {
  opacity: 0.8;
}

.subscribe-rss {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color 200ms ease;
}

.subscribe-rss:hover {
  color: var(--fg);
}

.subscribe-success {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  color: var(--fg-muted);
}

@media (max-width: 640px) {
  .subscribe-banner {
    flex-direction: column;
    align-items: stretch;
    padding: var(--sp-3);
  }
  .subscribe-form {
    flex-direction: column;
  }
  .subscribe-input {
    min-width: 0;
    width: 100%;
  }
}

/* ── Experience Row (minimal) ───────────────────────────── */

.experience-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
}

.experience-item {
  display: flex;
  gap: var(--sp-2);
  align-items: baseline;
  padding-top: var(--sp-2);
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
}

.experience-item__title {
  font-weight: 500;
  color: var(--fg);
  letter-spacing: 0.04em;
}

.experience-item__role {
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.experience-item__desc {
  color: var(--fg-muted);
}

/* ── Cursor Preview (project hover — desktop only) ────────── */

@media (hover: hover) and (pointer: fine) {
  .cursor-preview {
    position: fixed;
    top: 0;
    left: 0;
    width: 80px;
    height: 80px;
    pointer-events: none;
    z-index: 99;
    color: var(--fg);
    opacity: 0;
    transition: opacity 200ms ease;
    will-change: transform;
  }

  .cursor-preview.is-visible {
    opacity: 1;
  }

  .cursor-preview svg {
    width: 100%;
    height: 100%;
  }
}

/* ── Letter Stagger (interactive headlines) ──────────────── */

.research-entry__title .char {
  display: inline-block;
  transition: transform 200ms var(--ease-out-expo);
  transition-delay: calc(var(--i) * 18ms);
}

.research-entry:hover .char {
  transform: translateY(-4px);
}

/* ── Clip-path underline (contact links, nav links) ──────── */

.contact-col a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--fg);
  clip-path: inset(0 100% 0 0);
  transition: clip-path 220ms var(--ease-out-expo);
}

.contact-col a {
  position: relative;
}

.contact-col a:hover::after {
  clip-path: inset(0 0 0 0);
}

/* ═══════════════════════════════════════════════════════════
   Journal Index Page
   ═══════════════════════════════════════════════════════════ */

.journal-index {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--sp-16) var(--gutter) var(--sp-12);
}

.journal-index__header {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--sp-8);
  align-items: end;
  margin-bottom: var(--sp-8);
}

.journal-photo {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  clip-path: inset(0 100% 0 0);
  transition: clip-path 800ms var(--ease-out-expo);
}

.journal-photo.is-revealed {
  clip-path: inset(0 0 0 0);
}

.journal-photo img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(1) contrast(1.2);
  mix-blend-mode: luminosity;
}

.journal-photo__grain {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, var(--fg) 1px, transparent 1px);
  background-size: 4px 4px;
  mix-blend-mode: overlay;
  pointer-events: none;
  opacity: 0.08;
}

.journal-index__title {
  font-family: var(--font-display);
  font-size: var(--display-md);
  font-weight: 500;
  line-height: 0.9;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  margin-top: var(--sp-2);
  margin-bottom: var(--sp-3);
}

.journal-index__desc {
  color: var(--fg-muted);
  line-height: 1.6;
  max-width: 36rem;
  margin-bottom: var(--sp-4);
}

.journal-index__filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
}

.journal-index__sort {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-1);
  margin-top: var(--sp-1);
}

.sort-label {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  opacity: 0.5;
  margin-right: var(--sp-1);
}

.filter-chip {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  padding: var(--sp-1) var(--sp-2);
  transition: color var(--dur-fast) ease, background var(--dur-fast) ease;
}

.filter-chip:hover {
  color: var(--fg);
}

.filter-chip.is-active {
  background: var(--fg);
  color: var(--bg);
}

/* ── Journal Entry List ──────────────────────────────────── */

.journal-list {
  display: grid;
  gap: 0;
}

.journal-entry {
  display: block;
  padding: var(--sp-4) 0;
  border-top: 1px solid var(--rule);
  text-decoration: none;
  color: inherit;
  transition: border-color 300ms ease;
}

.journal-entry:last-child {
  border-bottom: 1px solid var(--rule);
}

.journal-entry:hover {
  border-color: var(--fg);
}

.journal-entry.is-hidden {
  display: none;
}

.journal-entry__meta {
  display: flex;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  color: var(--fg-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}

.journal-entry__title {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 500;
  line-height: 1.2;
  margin-bottom: var(--sp-1);
}

.journal-entry__excerpt {
  color: var(--fg-muted);
  font-size: var(--text-body);
  line-height: 1.5;
  max-width: 48rem;
}

/* ═══════════════════════════════════════════════════════════
   Article Page
   ═══════════════════════════════════════════════════════════ */

.article-page {
  min-height: 100vh;
}

.article-layout {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--sp-16) var(--gutter) var(--sp-12);
  display: grid;
  grid-template-columns: 180px 1fr 180px;
  gap: var(--sp-6);
  align-items: start;
}

/* ── TOC sidebar ─────────────────────────────────────────── */

.article-toc {
  position: sticky;
  top: 6rem;
}

.article-toc__inner {
  padding-top: var(--sp-3);
  border-top: 1px solid var(--rule);
}

.article-toc__label {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  display: block;
  margin-bottom: var(--sp-3);
}

.article-toc__nav {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.article-toc__item {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  line-height: 1.5;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color var(--dur-fast) ease;
  display: block;
}

.article-toc__item:hover {
  color: var(--fg);
}

/* ── Article content ─────────────────────────────────────── */

.article-content {
  max-width: 65ch;
  min-width: 0;
}

.article-empty {
  color: var(--fg-muted);
  padding: var(--sp-8) 0;
}

.article-empty a {
  color: var(--fg);
  text-decoration: underline;
}

.article-back {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: var(--sp-6);
  transition: color var(--dur-fast) ease;
}

.article-back:hover {
  color: var(--fg);
}

.article-header {
  margin-bottom: var(--sp-8);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid var(--rule);
}

.article-meta {
  display: flex;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  color: var(--fg-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--sp-4);
}

.article-title {
  font-family: var(--font-display);
  font-size: var(--display-sm);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-3);
}

.article-lede {
  font-size: var(--text-body-lg);
  color: var(--fg-muted);
  line-height: 1.5;
  max-width: 55ch;
  margin-bottom: var(--sp-3);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-1);
}

.article-body p {
  font-size: var(--text-body-lg);
  line-height: 1.8;
  color: var(--fg);
  max-width: 65ch;
  scroll-margin-top: 6rem;
}

.article-body p + p {
  margin-top: var(--sp-4);
}

.article-body a {
  color: var(--fg);
  text-decoration: underline;
  text-decoration-color: var(--rule);
  text-underline-offset: 2px;
  transition: text-decoration-color 0.2s;
}
.article-body a:hover {
  text-decoration-color: var(--fg);
}

.video-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  max-width: 65ch;
  margin: var(--sp-4) 0;
  border-radius: 4px;
  background: var(--bg-inv);
}

.video-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-caption {
  position: absolute;
  bottom: -1.75rem;
  left: 0;
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  color: var(--fg-muted);
}

/* ── Article aside (author card) ─────────────────────────── */

.article-aside {
  position: sticky;
  top: 6rem;
}

.article-aside__inner {
  padding-top: var(--sp-3);
  border-top: 1px solid var(--rule);
}

.article-aside__label {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  display: block;
  margin-bottom: var(--sp-2);
}

.article-aside__name {
  font-family: var(--font-display);
  font-size: var(--text-body);
  font-weight: 500;
}

.article-aside__role,
.article-aside__group {
  font-size: var(--text-micro);
  color: var(--fg-muted);
  line-height: 1.5;
}

.article-aside__links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  margin-top: var(--sp-3);
}

.article-aside__links a {
  font-family: var(--font-mono);
  font-size: var(--text-micro-sm);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  transition: color var(--dur-fast) ease;
}

.article-aside__links a:hover {
  color: var(--fg);
}

/* ── Sidebar Doodles (article page) ──────────────────────── */

.sidebar-doodle {
  display: inline-block;
  width: 20px;
  height: 20px;
  object-fit: contain;
  vertical-align: middle;
  margin-left: 6px;
  opacity: 0.35;
}

[data-theme="dark"] .sidebar-doodle {
  filter: invert(1);
}

.sidebar-doodle--bottom {
  display: block;
  width: 32px;
  height: 32px;
  margin-top: var(--sp-6);
  opacity: 0.15;
}

/* ═══════════════════════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
  .about-layout { grid-template-columns: 1fr; }
  .journal-grid { grid-template-columns: 1fr; }
  .contact-body { grid-template-columns: 1fr 1.5fr; gap: var(--sp-4); }
  .contact-links-grid { grid-template-columns: repeat(2, 1fr); }
  .journal-index__header { grid-template-columns: 1fr; }
  .startup-entry { flex: 0 0 220px; min-height: 140px; }
  .app-entry { flex: 0 0 180px; min-height: 120px; }
  .article-layout { grid-template-columns: 1fr; }
  .article-toc { position: static; }
  .article-aside { position: static; order: -1; }
}

@media (max-width: 768px) {
  .site-header { padding: var(--sp-2) var(--gutter); }
  .nav { flex-wrap: wrap; gap: var(--sp-1); }
  .nav__links { width: 100%; gap: var(--sp-2); flex-wrap: wrap; }

  .hero { min-height: auto; padding-top: var(--sp-12); padding-bottom: var(--sp-6); }

  .section__header { flex-wrap: wrap; }

  .hero__meta { flex-wrap: wrap; gap: var(--sp-3); }

  .hero__dna { display: none; }
  .hero__helix { display: none; }
  .about-layout { grid-template-columns: 1fr; }
  .about-photo { max-width: 280px; }
  .contact-body { grid-template-columns: 1fr; }
  .contact-photo--sm { max-width: 140px; }
  .contact-links-grid { grid-template-columns: repeat(3, 1fr); }
  .research-entry { grid-template-columns: 1fr; }
  .research-entry__number { padding-bottom: 0; }
  .startup-entry { flex: 0 0 200px; min-height: 120px; }
  .app-grid { grid-template-columns: 1fr 1fr; }

  .article-title { font-size: clamp(1.5rem, 5vw, var(--display-sm)); }
}

@media (max-width: 480px) {
  .hero__links { flex-direction: column; gap: var(--sp-2); }
  .site-footer { flex-direction: column; align-items: flex-start; gap: var(--sp-2); }
  .footer-nav { gap: var(--sp-2); }
  .contact-links-grid { grid-template-columns: 1fr 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  body { transition: none; }
  .ticker__inner { animation: none; }
}