/* =========================================================
   Nikolaos Papadakis · Modern Minimal
   Off-white · deep ink · single warm accent
   Geist primary · Instrument Serif italic for emphasis only
   ========================================================= */

:root {
  --paper:        #fafaf7;
  --paper-deep:   #f1efe9;
  --paper-soft:   #ffffff;
  --ink:          #111111;
  --ink-2:        #2a2a2a;
  --ink-muted:    #6e6e6e;
  --ink-faded:    #a0a0a0;
  --accent:       #b8401d;
  --accent-soft:  #e07a4d;
  --hairline:     rgba(17, 17, 17, 0.12);
  --hairline-2:   rgba(17, 17, 17, 0.07);

  --serif:  "Instrument Serif", "Cormorant Garamond", "Times New Roman", Georgia, serif;
  --sans:   "Geist", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono:   "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --max:    1180px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);

  --ease:   cubic-bezier(.2,.7,.2,1);
}

/* ─────────── reset / base ─────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.005em;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

::selection { background: var(--ink); color: var(--paper-soft); }

.visually-hidden {
  position: absolute !important; height: 1px; width: 1px; overflow: hidden;
  clip: rect(1px,1px,1px,1px); white-space: nowrap;
}
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.grain { display: none; }

/* ─────────── header ─────────── */
.site-head {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.05rem var(--gutter);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: color-mix(in oklab, var(--paper) 82%, transparent);
  border-bottom: 1px solid var(--hairline-2);
}
.mark {
  display: inline-flex; align-items: center; gap: 0.18rem;
  font-family: var(--sans); font-weight: 500; font-size: 0.95rem;
  letter-spacing: -0.01em; color: var(--ink);
}
.mark-glyph { display: inline-block; line-height: 1; }
.mark-glyph--p { color: var(--accent); }
.mark-dot {
  width: 3px; height: 3px; border-radius: 50%;
  background: var(--ink); display: inline-block;
  transform: translateY(-1px); margin: 0 1px;
}
.nav {
  display: flex; gap: clamp(1rem, 2.4vw, 2rem);
  font-family: var(--sans); font-size: 0.88rem; font-weight: 400;
  color: var(--ink-muted);
}
.nav a { position: relative; padding: 0.25rem 0; transition: color .2s var(--ease); }
.nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--ink);
  transition: right .35s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { right: 0; }

/* ─────────── layout primitive ─────────── */
.section, .hero, .site-foot {
  max-width: var(--max);
  margin-left: auto; margin-right: auto;
  padding-left: var(--gutter); padding-right: var(--gutter);
}

/* ─────────── HERO ─────────── */
.hero {
  position: relative;
  padding-top: clamp(4rem, 11vw, 8rem);
  padding-bottom: clamp(4rem, 9vw, 7rem);
}
.hero-rule { display: none; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,260px);
  gap: clamp(2rem, 5vw, 4rem) clamp(2rem, 5vw, 5rem);
  align-items: end;
}
.eyebrow {
  font-family: var(--mono); font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.18em;
  color: var(--ink-faded); margin: 0 0 1.6rem;
}
.display {
  font-family: var(--sans); font-weight: 400;
  font-size: clamp(3.4rem, 11vw, 8.5rem);
  line-height: 0.94; letter-spacing: -0.045em;
  margin: 0; color: var(--ink);
}
.display-row { display: block; }
.display em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.hero-greek {
  margin: 1.6rem 0 0;
  font-family: var(--serif); font-style: italic; font-size: 1.2rem;
  color: var(--ink-muted); letter-spacing: 0.005em;
}

.hero-meta {
  border-top: 1px solid var(--ink);
  padding-top: 1rem;
}
.hero-meta dl {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  font-family: var(--mono); font-size: 0.74rem;
  letter-spacing: 0.02em;
  color: var(--ink-2);
}
.hero-meta dl > div {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 0.6rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--hairline-2);
}
.hero-meta dl > div:last-child { border-bottom: none; }
.hero-meta dt {
  color: var(--ink-faded); font-weight: 400; margin: 0;
  text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.7rem;
  align-self: center;
}
.hero-meta dd { margin: 0; color: var(--ink); }
.hero-meta a { color: var(--ink); border-bottom: 1px solid var(--hairline); transition: border-color .2s; }
.hero-meta a:hover { border-color: var(--ink); }

/* ─────────── section primitive ─────────── */
.section {
  padding-top: clamp(4rem, 9vw, 7rem);
  padding-bottom: clamp(4rem, 9vw, 7rem);
  border-top: 1px solid var(--hairline-2);
}
.section-head {
  display: grid;
  grid-template-columns: 4rem 1fr auto;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: clamp(2.4rem, 5vw, 3.4rem);
}
.section-head .num {
  font-family: var(--mono); font-size: 0.74rem;
  letter-spacing: 0.18em;
  color: var(--ink-faded);
  font-variant-numeric: tabular-nums;
}
.section-head h2 {
  margin: 0;
  font-family: var(--sans); font-weight: 500;
  font-size: clamp(1.8rem, 3.4vw, 2.5rem);
  letter-spacing: -0.025em; line-height: 1;
  color: var(--ink);
}
.section-more {
  font-family: var(--sans); font-size: 0.86rem; font-weight: 400;
  color: var(--ink-muted);
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 2px;
  transition: color .2s, border-color .2s;
}
.section-more:hover { color: var(--ink); border-color: var(--ink); }

/* ─────────── ABOUT ─────────── */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}
.prose {
  font-size: 1.06rem;
  line-height: 1.7;
  color: var(--ink-2);
  max-width: 56ch;
}
.prose p { margin: 0 0 1.1rem; }
.prose em {
  color: var(--ink);
  font-family: var(--serif); font-style: italic;
  font-size: 1.08em;
  letter-spacing: -0.005em;
}
.prose .lede {
  font-size: 1.22rem;
  line-height: 1.55;
  color: var(--ink);
  letter-spacing: -0.012em;
  margin-bottom: 1.4rem;
}
.prose .prose-tail {
  font-family: var(--serif); font-style: italic;
  color: var(--ink-muted); margin-top: 1.6rem;
  font-size: 1.1rem;
}

.portrait {
  margin: 0;
  position: relative;
}
.portrait-frame {
  position: relative;
  aspect-ratio: 4 / 5;
  background: var(--paper-deep);
  overflow: hidden;
  border-radius: 2px;
}
.portrait-frame::after { content: none; }
.portrait-frame img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 1.2s var(--ease);
}
.portrait:hover .portrait-frame img { transform: scale(1.03); }
.portrait figcaption {
  margin-top: 0.8rem;
  font-family: var(--mono); font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.15em;
  color: var(--ink-muted);
  display: flex; justify-content: space-between; align-items: baseline;
}
.portrait .tick { color: var(--accent); }

/* ─────────── FOCUS ─────────── */
.focus-list {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 0;
  border-top: 1px solid var(--hairline);
}
.focus-list li {
  display: grid;
  grid-template-columns: 4rem minmax(0, 18ch) 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  align-items: baseline;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--hairline-2);
  transition: padding .35s var(--ease);
}
.focus-list li:hover { padding-left: 0.6rem; }
.focus-tag {
  font-family: var(--mono); font-size: 0.74rem;
  letter-spacing: 0.12em; color: var(--ink-faded);
  font-variant-numeric: tabular-nums;
}
.focus-list h3 {
  margin: 0;
  font-family: var(--sans); font-weight: 500;
  font-size: clamp(1.2rem, 2vw, 1.45rem);
  line-height: 1.15;
  letter-spacing: -0.018em;
  color: var(--ink);
}
.focus-list p {
  margin: 0; color: var(--ink-muted);
  font-size: 0.98rem; line-height: 1.55;
  max-width: 60ch;
}

/* ─────────── ELSEWHERE (link table) ─────────── */
.link-table {
  list-style: none; margin: 0; padding: 0;
  border-top: 1px solid var(--hairline);
}
.link-table li { border-bottom: 1px solid var(--hairline-2); }
.link-table a {
  display: grid;
  grid-template-columns: 1.6rem minmax(0, 13rem) 1fr 2rem;
  gap: 1rem;
  padding: 1.25rem 0;
  align-items: center;
  position: relative;
  transition: padding .35s var(--ease), color .25s var(--ease);
}
.link-table a:hover { padding-left: 0.8rem; color: var(--accent); }
.link-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.4rem; height: 1.4rem;
  color: var(--ink-faded);
  transition: color .25s var(--ease), transform .25s var(--ease);
}
.link-icon svg { width: 100%; height: 100%; }
.link-table a:hover .link-icon { color: var(--accent); transform: rotate(-3deg); }
.link-key {
  font-family: var(--sans); font-weight: 500;
  font-size: 1.15rem; color: inherit;
  letter-spacing: -0.015em;
}
.link-val {
  font-family: var(--mono); font-size: 0.84rem;
  letter-spacing: 0.02em; color: var(--ink-muted);
}
.link-arrow {
  font-family: var(--mono);
  color: var(--ink-muted);
  text-align: right;
  transition: transform .3s var(--ease), color .25s var(--ease);
}
.link-table a:hover .link-arrow {
  transform: translate(3px, -3px);
  color: var(--accent);
}
.link-table a[href$="cv.pdf"]:hover .link-arrow { transform: translateY(3px); }

/* ─────────── NOTES ─────────── */
.note-list {
  list-style: none; margin: 0; padding: 0;
  border-top: 1px solid var(--hairline);
}
.note-list li { border-bottom: 1px solid var(--hairline-2); }
.note-list a {
  display: grid;
  grid-template-columns: minmax(0, 11rem) 1fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: 1.7rem 0;
  align-items: baseline;
  transition: padding .35s var(--ease);
}
.note-list a:hover { padding-left: 0.8rem; }
.note-list time {
  font-family: var(--mono); font-size: 0.78rem;
  letter-spacing: 0.06em; color: var(--ink-faded);
  font-variant-numeric: tabular-nums;
}
.note-list h3 {
  margin: 0 0 0.4rem;
  font-family: var(--sans); font-weight: 500;
  font-size: clamp(1.3rem, 2.2vw, 1.55rem);
  line-height: 1.2;
  letter-spacing: -0.022em;
  color: var(--ink);
  transition: color .2s;
}
.note-list a:hover h3 { color: var(--accent); }
.note-list p {
  margin: 0; color: var(--ink-muted);
  font-size: 0.98rem; max-width: 60ch;
}

/* ─────────── CONTACT ─────────── */
.section--contact { padding-bottom: clamp(3rem, 6vw, 4.5rem); }
.contact-grid { display: grid; gap: 2rem; }
.contact-blurb {
  font-family: var(--sans); font-weight: 400;
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  color: var(--ink-muted); margin: 0;
  max-width: 36ch;
  line-height: 1.5;
}
.contact-blurb .contact-mark {
  color: var(--accent);
  display: inline-block;
}

.contact-emails {
  display: grid;
  gap: 1.4rem;
}
.contact-email { margin: 0; }
.contact-label {
  display: block;
  font-family: var(--mono); font-size: 0.7rem;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--ink-faded);
  margin-bottom: 0.45rem;
}
.email-link {
  display: inline-block;
  font-family: var(--sans); font-weight: 400;
  font-size: clamp(1.25rem, 3.4vw, 2.1rem);
  letter-spacing: -0.035em;
  color: var(--ink);
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 0.12em;
  transition: color .2s, border-color .2s;
  word-break: break-all;
  line-height: 1.15;
}
.email-link:hover { color: var(--accent); border-color: var(--accent); }
.email-link i {
  font-style: italic; font-family: var(--serif);
  font-size: 0.78em;
  color: var(--ink-faded);
  padding: 0 0.1em;
  vertical-align: 0.04em;
  font-weight: 400;
}
.email-link.is-revealed i { display: none; }

/* ─────────── FOOTER ─────────── */
.site-foot {
  border-top: 1px solid var(--hairline-2);
  padding-top: 1.7rem; padding-bottom: 2.5rem;
  margin-top: 2rem;
}
.foot-row {
  display: flex; justify-content: space-between; align-items: baseline;
  gap: 1rem; flex-wrap: wrap;
  font-family: var(--mono); font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--ink-faded);
}
.foot-mid em {
  font-family: var(--serif); font-style: italic;
  letter-spacing: 0;
  color: var(--ink-muted); font-size: 1.08em;
}
.foot-top {
  border-bottom: 1px solid transparent;
  transition: color .2s, border-color .2s;
}
.foot-top:hover { color: var(--ink); border-color: var(--ink); }

/* ─────────── reveal animation ─────────── */
.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  transition-delay: calc(var(--d, 0) * 1ms);
}
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ─────────── responsive ─────────── */
@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; align-items: start; }
  .hero-meta { max-width: 360px; }
  .about-grid { grid-template-columns: 1fr; }
  .portrait-frame { aspect-ratio: 1 / 1; max-width: 320px; }
  .focus-list li { grid-template-columns: 2.6rem 1fr; }
  .focus-list li > p { grid-column: 2; }
  .link-table a { grid-template-columns: 1.4rem 1fr auto; gap: 0.8rem; }
  .link-table .link-val { grid-column: 2 / -1; padding-left: 0; }
  .link-table .link-arrow { grid-row: 1; }
  .note-list a { grid-template-columns: 1fr; }
  .section-head { grid-template-columns: 3rem 1fr; }
  .section-more { grid-column: 1 / -1; justify-self: start; margin-top: 0.4rem; }
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  .nav { gap: 0.9rem; font-size: 0.82rem; }
  .email-link { font-size: 1.45rem; }
}

/* ─────────── BLOG (used by /blog/ pages) ─────────── */
.post {
  max-width: 68ch;
  margin: clamp(3rem, 7vw, 5rem) auto;
  padding: 0 var(--gutter);
}
.post-meta {
  font-family: var(--mono); font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--ink-faded);
  margin-bottom: 1rem;
}
.post-meta a { color: var(--ink-muted); border-bottom: 1px solid var(--hairline); padding-bottom: 1px; }
.post-meta a:hover { color: var(--ink); border-color: var(--ink); }
.post h1 {
  font-family: var(--sans); font-weight: 500;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.05; letter-spacing: -0.03em;
  margin: 0 0 1.6rem;
  color: var(--ink);
}
.post h1 em {
  font-family: var(--serif); font-style: italic;
  font-weight: 400;
  color: var(--ink);
}
.post-body { font-size: 1.08rem; line-height: 1.75; color: var(--ink-2); }
.post-body p { margin: 0 0 1.2rem; }
.post-body h2 {
  font-family: var(--sans); font-weight: 500;
  font-size: 1.35rem; margin: 2.4rem 0 0.8rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.post-body em {
  font-family: var(--serif); font-style: italic;
  color: var(--ink); font-size: 1.05em;
}
.post-body a {
  color: var(--ink);
  border-bottom: 1px solid var(--accent);
  transition: color .2s;
}
.post-body a:hover { color: var(--accent); }
.post-body blockquote {
  margin: 2rem 0;
  padding-left: 1.4rem;
  border-left: 2px solid var(--accent);
  font-family: var(--serif); font-style: italic;
  font-size: 1.25rem; color: var(--ink);
}
.post-body code, .post-body pre {
  font-family: var(--mono); font-size: 0.92em;
  background: var(--paper-deep); padding: 0.1em 0.35em;
  border-radius: 3px;
}
.post-body pre {
  padding: 1rem; overflow-x: auto;
  border: 1px solid var(--hairline);
  background: var(--paper-soft);
}
.post-foot {
  margin-top: 4rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--hairline);
  font-family: var(--mono); font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  display: flex; justify-content: space-between;
}
.post-foot a:hover { color: var(--ink); }

/* index of notes */
.archive {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 5rem) var(--gutter);
}
.archive h1 {
  font-family: var(--sans); font-weight: 500;
  font-size: clamp(2.6rem, 7vw, 5rem);
  line-height: 0.98; letter-spacing: -0.04em;
  margin: 0 0 0.4rem;
  color: var(--ink);
}
.archive h1 em {
  font-family: var(--serif); font-style: italic;
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.archive-intro {
  font-family: var(--sans);
  font-size: 1.15rem; color: var(--ink-muted);
  max-width: 50ch; margin: 0 0 3rem;
  line-height: 1.55;
}