@import url("./tokens.css");

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-body);
  text-rendering: optimizeLegibility;
}
body::before {
  position: fixed;
  inset: 0;
  z-index: 20;
  border: var(--border-thin) solid var(--color-ink);
  pointer-events: none;
  content: "";
}
::selection { color: var(--color-paper); background: var(--color-ink); }
a { color: inherit; }
button, input, textarea { font: inherit; }
button { color: inherit; }
img, svg { display: block; max-width: 100%; }
:focus-visible { outline: var(--border-strong) solid var(--color-ink); outline-offset: 4px; }
.skip-link {
  position: fixed;
  top: var(--space-sm);
  left: var(--space-sm);
  z-index: 100;
  padding: var(--space-xs) var(--space-sm);
  color: var(--color-paper);
  background: var(--color-ink);
  transform: translateY(-200%);
}
.skip-link:focus { transform: translateY(0); }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  min-height: 5rem;
  padding: 0 var(--page-gutter);
  border-bottom: var(--border-thin) solid var(--color-ink);
  background: var(--color-paper);
}
.brand {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  width: max-content;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}
.brand-mark { width: 0.75rem; height: 0.75rem; background: var(--color-ink); transform: rotate(45deg); transition: transform var(--motion-standard); }
.brand:hover .brand-mark { transform: rotate(225deg); }
.nav-list { display: flex; gap: clamp(1rem, 3vw, 3rem); align-items: center; margin: 0; padding: 0; list-style: none; }
.nav-link { position: relative; font-family: var(--font-mono); font-size: 0.77rem; text-decoration: none; text-transform: uppercase; }
.nav-link::after { position: absolute; right: 0; bottom: -0.35rem; left: 0; height: var(--border-thin); background: var(--color-ink); content: ""; transform: scaleX(0); transform-origin: right; transition: transform var(--motion-standard); }
.nav-link:hover::after, .nav-link:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.menu-toggle { display: none; border: 0; padding: 0.6rem; background: transparent; cursor: pointer; }
.menu-toggle-line { display: block; width: 1.5rem; height: var(--border-strong); margin: 0.3rem 0; background: var(--color-ink); transition: transform var(--motion-fast); }
main { overflow: hidden; }
.section { width: min(100%, var(--content-max)); margin: 0 auto; padding: var(--space-xxl) var(--page-gutter); border-bottom: var(--border-thin) solid var(--color-ink); }
.eyebrow { margin: 0 0 var(--space-lg); font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; }
.hero { position: relative; display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(17rem, 0.7fr); gap: var(--space-lg); align-items: end; min-height: calc(100svh - 5rem); }
.hero-title { max-width: 12ch; margin: 0; font-size: clamp(4rem, 10.6vw, 10rem); font-weight: 700; letter-spacing: -0.085em; line-height: var(--line-height-display); }
.hero-title span { display: block; }
.hero-title .outline { color: var(--color-paper); -webkit-text-stroke: var(--border-strong) var(--color-ink); }
.hero-aside { display: grid; gap: var(--space-lg); align-content: end; }
.hero-intro { max-width: 31rem; margin: 0; font-size: clamp(1.05rem, 1.7vw, 1.35rem); }
.hero-meta { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-sm); padding-top: var(--space-sm); border-top: var(--border-thin) solid var(--color-ink); font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; }
.hero-object { position: absolute; top: 12%; right: 9%; width: clamp(7rem, 12vw, 11rem); aspect-ratio: 1; border: var(--border-thin) solid var(--color-ink); border-radius: 50%; animation: orbit 14s linear infinite; }
.hero-object::before, .hero-object::after { position: absolute; inset: 15%; border: var(--border-thin) solid var(--color-ink); content: ""; }
.hero-object::before { transform: rotate(30deg); }
.hero-object::after { transform: rotate(60deg); }
@keyframes orbit { to { transform: rotate(360deg); } }
.section-head { display: grid; grid-template-columns: 1fr 2fr; gap: var(--space-lg); margin-bottom: var(--space-xl); }
.section-title { max-width: 14ch; margin: 0; font-size: clamp(2.7rem, 6vw, 6rem); letter-spacing: -0.06em; line-height: 1; }
.section-lead { max-width: 48rem; margin: 0; font-size: clamp(1.25rem, 2.4vw, 2.1rem); line-height: 1.25; }
.approach-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: var(--border-thin) solid var(--color-ink); }
.approach-card { min-height: 18rem; padding: var(--space-md); border-right: var(--border-thin) solid var(--color-ink); }
.approach-card:last-child { border-right: 0; }
.card-index { display: block; margin-bottom: var(--space-xl); font-family: var(--font-mono); font-size: 0.72rem; }
.approach-card h3 { margin: 0 0 var(--space-sm); font-size: 1.35rem; }
.approach-card p { max-width: 30ch; margin: 0; }
.skills-layout { display: grid; grid-template-columns: 0.75fr 2fr; gap: var(--space-xl); }
.skills-note { margin: 0; font-family: var(--font-mono); font-size: 0.8rem; }
.skills-list { display: flex; flex-wrap: wrap; gap: 0.7rem; margin: 0; padding: 0; list-style: none; }
.skill { padding: 0.55rem 0.9rem; border: var(--border-thin) solid var(--color-ink); border-radius: var(--radius-pill); font-size: clamp(0.9rem, 1.5vw, 1.1rem); transition: color var(--motion-fast), background var(--motion-fast), transform var(--motion-fast); }
.skill:hover { color: var(--color-paper); background: var(--color-ink); transform: translateY(-3px); }
.filter-bar { display: flex; flex-wrap: wrap; gap: var(--space-xs); margin-bottom: var(--space-lg); }
.filter-button { border: var(--border-thin) solid var(--color-ink); border-radius: var(--radius-pill); padding: 0.45rem 1rem; background: transparent; font-family: var(--font-mono); font-size: 0.75rem; cursor: pointer; }
.filter-button[aria-pressed="true"], .filter-button:hover { color: var(--color-paper); background: var(--color-ink); }
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: var(--border-thin) solid var(--color-ink); }
.post-card { position: relative; display: flex; flex-direction: column; min-height: 24rem; padding: var(--space-md); border-right: var(--border-thin) solid var(--color-ink); transition: color var(--motion-standard), background var(--motion-standard); }
.post-card:last-child { border-right: 0; }
.post-card[hidden] { display: none; }
.post-meta { display: flex; justify-content: space-between; gap: var(--space-sm); margin: 0 0 auto; font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; }
.post-title { margin: var(--space-lg) 0 var(--space-sm); font-size: clamp(1.5rem, 2.3vw, 2.2rem); line-height: 1.05; }
.post-excerpt { margin: 0; }
.post-status { display: inline-block; width: max-content; margin-top: var(--space-md); padding-bottom: 0.1rem; border-bottom: var(--border-thin) solid currentColor; font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; }
.contact { display: grid; grid-template-columns: 1.5fr 0.8fr; gap: var(--space-xl); align-items: end; }
.contact-title { max-width: 12ch; margin: 0; font-size: clamp(3.5rem, 8vw, 8rem); letter-spacing: -0.07em; line-height: 0.95; }
.contact-panel { display: grid; gap: var(--space-md); }
.contact-copy { margin: 0; font-size: 1.2rem; }
.copy-button { width: 100%; border: var(--border-strong) solid var(--color-ink); padding: var(--space-sm) var(--space-md); color: var(--color-paper); background: var(--color-ink); text-align: left; cursor: pointer; transition: color var(--motion-fast), background var(--motion-fast); }
.copy-button:hover { color: var(--color-ink); background: var(--color-paper); }
.copy-feedback { min-height: 1.6rem; margin: 0; font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; }
.site-footer { display: grid; grid-template-columns: 1fr auto auto; gap: var(--space-lg); padding: var(--space-lg) var(--page-gutter); font-family: var(--font-mono); font-size: 0.72rem; text-transform: uppercase; }
.site-footer p { margin: 0; }
.footer-link { text-underline-offset: 0.25rem; }
.error-page { display: grid; place-items: center; min-height: 100svh; padding: var(--page-gutter); text-align: center; }
.error-code { margin: 0; font-size: clamp(8rem, 35vw, 28rem); font-weight: 700; letter-spacing: -0.1em; line-height: 0.75; }
.error-title { margin: var(--space-lg) 0 var(--space-sm); font-size: clamp(1.7rem, 4vw, 3rem); }
.error-copy { margin: 0 0 var(--space-lg); }
.button-link { display: inline-block; border: var(--border-strong) solid var(--color-ink); padding: 0.8rem 1.2rem; color: var(--color-paper); background: var(--color-ink); text-decoration: none; }
.reveal { opacity: 1; transform: none; }
.reveal.is-visible { animation: reveal-in var(--motion-slow) both; }
@keyframes reveal-in { from { opacity: 0; transform: translateY(2rem); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 800px) {
  .menu-toggle { display: block; }
  .site-nav { position: absolute; top: 100%; right: 0; left: 0; display: none; border-bottom: var(--border-thin) solid var(--color-ink); background: var(--color-paper); }
  .site-nav.is-open { display: block; }
  .nav-list { align-items: stretch; flex-direction: column; gap: 0; }
  .nav-link { display: block; padding: var(--space-md) var(--page-gutter); border-top: var(--border-thin) solid var(--color-ink); font-size: 0.9rem; }
  .menu-toggle[aria-expanded="true"] .menu-toggle-line:first-child { transform: translateY(0.3rem) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-toggle-line:last-child { transform: translateY(-0.3rem) rotate(-45deg); }
  .hero { grid-template-columns: 1fr; align-items: end; min-height: auto; padding-top: var(--space-xl); }
  .hero-object { top: 5%; right: 5%; opacity: 0.55; }
  .section { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }
  .section-head, .skills-layout, .contact { grid-template-columns: 1fr; }
  .approach-grid, .blog-grid { grid-template-columns: 1fr; }
  .approach-card, .post-card { min-height: 0; border-right: 0; border-bottom: var(--border-thin) solid var(--color-ink); }
  .approach-card:last-child, .post-card:last-child { border-bottom: 0; }
  .card-index { margin-bottom: var(--space-lg); }
  .site-footer { grid-template-columns: 1fr; gap: var(--space-sm); }
}
@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; }
  .reveal { opacity: 1; transform: none; }
}

/* Journal page */
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.journal-intro { display: grid; gap: var(--space-md); align-content: start; }
.text-link { width: max-content; padding-bottom: 0.2rem; border-bottom: var(--border-thin) solid currentColor; font-family: var(--font-mono); font-size: 0.75rem; text-decoration: none; text-transform: uppercase; }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }
.journal-hero { position: relative; display: grid; grid-template-columns: 1.5fr 0.75fr; gap: var(--space-xl); align-items: end; min-height: 72svh; overflow: hidden; }
.journal-page-title { max-width: 12ch; margin: 0; font-size: clamp(4rem, 9.5vw, 9rem); letter-spacing: -0.08em; line-height: 0.9; }
.journal-page-lead { position: relative; z-index: 1; max-width: 32rem; margin: 0; font-size: clamp(1.1rem, 1.8vw, 1.45rem); }
.journal-orbit { position: absolute; top: 13%; right: 9%; width: clamp(8rem, 17vw, 16rem); aspect-ratio: 1; border: var(--border-thin) solid var(--color-ink); border-radius: 50%; animation: orbit 18s linear infinite reverse; }
.journal-orbit::before { position: absolute; inset: 20%; border: var(--border-thin) solid var(--color-ink); content: ""; transform: rotate(45deg); }
.journal-orbit::after { position: absolute; top: 50%; right: -18%; left: -18%; height: var(--border-thin); background: var(--color-ink); content: ""; }
.journal-index { padding-top: var(--space-lg); }
.journal-toolbar { display: flex; justify-content: space-between; gap: var(--space-md); align-items: center; margin-bottom: var(--space-xl); }
.journal-toolbar .filter-bar { margin: 0; }
.journal-count { margin: 0; font-family: var(--font-mono); font-size: 0.75rem; text-transform: uppercase; }
.journal-entries { border-top: var(--border-thin) solid var(--color-ink); }
.journal-entry { display: grid; grid-template-columns: minmax(12rem, 0.65fr) minmax(0, 2fr); gap: var(--space-xl); padding: var(--space-xl) 0; border-bottom: var(--border-thin) solid var(--color-ink); }
.journal-entry[hidden] { display: none; }
.journal-entry-meta { display: grid; grid-template-columns: auto 1fr; gap: var(--space-sm); align-content: start; font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; }
.journal-entry-meta time { grid-column: 2; }
.journal-entry-content { max-width: 53rem; }
.journal-entry-content h3 { max-width: 18ch; margin: 0 0 var(--space-md); font-size: clamp(2.2rem, 5vw, 5rem); letter-spacing: -0.055em; line-height: 0.98; }
.journal-entry-content > p:not(.journal-entry-deck):not(.journal-entry-note) { max-width: 66ch; }
.journal-entry-deck { max-width: 42ch; margin: 0 0 var(--space-lg); font-size: clamp(1.2rem, 2vw, 1.65rem); line-height: 1.3; }
.journal-entry-note { max-width: 62ch; margin: var(--space-lg) 0 0; padding: var(--space-sm) 0 var(--space-sm) var(--space-md); border-left: var(--border-strong) solid var(--color-ink); font-family: var(--font-mono); font-size: 0.76rem; text-transform: uppercase; }
.journal-end { display: grid; grid-template-columns: 1fr 1.5fr auto; gap: var(--space-lg); align-items: end; }
.journal-end .eyebrow { margin: 0; }
.journal-end h2 { max-width: 12ch; margin: 0; font-size: clamp(2.5rem, 5vw, 5rem); letter-spacing: -0.06em; line-height: 1; }
.journal-end .button-link { white-space: nowrap; }
@media (max-width: 800px) {
  .journal-hero, .journal-entry, .journal-end { grid-template-columns: 1fr; }
  .journal-hero { min-height: auto; }
  .journal-orbit { top: 10%; right: -3rem; opacity: 0.45; }
  .journal-toolbar { align-items: flex-start; flex-direction: column; }
  .journal-entry { gap: var(--space-lg); }
  .journal-entry-meta { grid-template-columns: auto 1fr auto; }
  .journal-entry-meta time { grid-column: auto; }
  .journal-end { align-items: start; }
  .journal-end .button-link { width: max-content; }
}

/* Three distinct, bichromatic hover studies for the Journal cards. */
.post-card[data-ai-id="journal.post-local-first"],
.post-card[data-ai-id="journal.post-godot"],
.post-card[data-ai-id="journal.post-observability"] {
  isolation: isolate;
  overflow: hidden;
  background: var(--color-paper);
  transition: color 220ms ease 140ms;
}
.post-card[data-ai-id="journal.post-local-first"] > *,
.post-card[data-ai-id="journal.post-godot"] > *,
.post-card[data-ai-id="journal.post-observability"] > * {
  position: relative;
  z-index: 2;
}

/* 01 — A dense dither progressively resolves into solid ink. */
.post-card[data-ai-id="journal.post-local-first"]::before {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: var(--color-paper);
  background-image: radial-gradient(circle, var(--color-ink) 42%, transparent 46%);
  background-position: center;
  background-size: 2px 2px;
  content: "";
  opacity: 0;
  pointer-events: none;
}
.post-card[data-ai-id="journal.post-local-first"]:hover {
  color: var(--color-paper);
}
.post-card[data-ai-id="journal.post-local-first"]:hover::before {
  opacity: 1;
  animation: local-first-dither-in 680ms steps(9, end) forwards;
}
@keyframes local-first-dither-in {
  0% { background-size: 18px 18px; }
  100% { background-size: 2px 2px; }
}

/* 02 — A calibrated scan rises through the card like a plotter pass. */
.post-card[data-ai-id="journal.post-godot"]::before,
.post-card[data-ai-id="journal.post-godot"]::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  content: "";
  pointer-events: none;
}
.post-card[data-ai-id="journal.post-godot"]::before {
  top: 0;
  z-index: 0;
  background: var(--color-ink);
  transform: translateY(101%);
  transition: transform 720ms cubic-bezier(0.76, 0, 0.24, 1);
}
.post-card[data-ai-id="journal.post-godot"]::after {
  z-index: 1;
  height: 4.5rem;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0 7px,
    var(--color-ink) 7px 9px
  );
  transform: translateY(100%);
  transition: transform 760ms steps(10, end);
}
.post-card[data-ai-id="journal.post-godot"]:hover {
  color: var(--color-paper);
}
.post-card[data-ai-id="journal.post-godot"]:hover::before {
  transform: translateY(0);
}
.post-card[data-ai-id="journal.post-godot"]:hover::after {
  transform: translateY(calc(-24rem + 100%));
}

/* 03 — Concentric measurement rings expand into a full ink field. */
.post-card[data-ai-id="journal.post-observability"]::before,
.post-card[data-ai-id="journal.post-observability"]::after {
  position: absolute;
  inset: -80%;
  border-radius: 50%;
  content: "";
  pointer-events: none;
  transform: scale(0);
  transition: transform 780ms cubic-bezier(0.7, 0, 0.2, 1);
}
.post-card[data-ai-id="journal.post-observability"]::before {
  z-index: 0;
  background: var(--color-ink);
}
.post-card[data-ai-id="journal.post-observability"]::after {
  z-index: 1;
  background: repeating-radial-gradient(
    circle,
    transparent 0 18px,
    var(--color-paper) 19px 20px
  );
  opacity: 0;
  transition: transform 780ms cubic-bezier(0.7, 0, 0.2, 1), opacity 180ms ease;
}
.post-card[data-ai-id="journal.post-observability"]:hover {
  color: var(--color-paper);
}
.post-card[data-ai-id="journal.post-observability"]:hover::before,
.post-card[data-ai-id="journal.post-observability"]:hover::after {
  transform: scale(1);
}
.post-card[data-ai-id="journal.post-observability"]:hover::after {
  opacity: 0.24;
}

@media (max-width: 800px) {
  .post-card[data-ai-id="journal.post-godot"]:hover::after {
    transform: translateY(calc(-100% - 8rem));
  }
}