/* =====================================================================
   inikolaou.github.io — quiet luxury
   Swap paid faces via --font-display / --font-body / --font-mono.
   ===================================================================== */

:root {
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-body:    "Instrument Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --bone:       #F4F1EA;
  --bone-2:     #EAE4D6;
  --ink:        #1A1A18;
  --ink-soft:   #6B6A66;
  --rule:       #D9D4C8;
  --accent:     #5C6B4A;
  --accent-bg:  rgba(92, 107, 74, 0.07);

  --space-1:  8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 72px;
  --space-6: 120px;

  --content-max: 980px;
  --gutter: 28px;
  --hairline: 1px solid var(--rule);
  --ease-out: cubic-bezier(.16,1,.3,1);
}

@media (min-width: 900px) { :root { --gutter: 64px; } }

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

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
img, svg, video { display: block; max-width: 100%; }
ul, ol { list-style: none; }
button { font: inherit; background: none; border: none; cursor: pointer; }
input, textarea { font: inherit; }
html { scroll-behavior: smooth; }

/* ─── Base ──────────────────────────────────────────── */

html {
  background: var(--bone);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.003em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Warm ambient glow */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 55% at 8% 0%, rgba(92,107,74,.065), transparent),
    radial-gradient(ellipse 55% 65% at 95% 100%, rgba(26,26,24,.035), transparent);
}

/* Film grain */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: .03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 192px 192px;
}

main {
  position: relative;
  z-index: 1;
  flex: 1;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

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

/* ─── Typography ─────────────────────────────────────── */

h1, h2, h3 { font-weight: 400; letter-spacing: -0.02em; }
p { line-height: 1.65; }

.mono {
  font-family: var(--font-mono);
  font-size: .76em;
  letter-spacing: .025em;
  color: var(--ink-soft);
  font-feature-settings: "tnum" 1;
}

.nowrap { white-space: nowrap; }

/* ─── Links ─────────────────────────────────────────── */

a {
  color: inherit;
  text-decoration: none;
  transition: color 200ms ease;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}

/* ─── Header / top bar ──────────────────────────────── */

.bar {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 20px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: var(--hairline);
}

.wordmark {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 21px;
  letter-spacing: -0.025em;
  color: var(--ink);
  line-height: 1;
}

.bar-nav {
  display: flex;
  align-items: center;
  gap: 20px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.bar-nav > a { color: var(--ink-soft); transition: color 180ms ease; }
.bar-nav > a:hover { color: var(--ink); }

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
}

.lang-sep { color: var(--rule); font-size: 10px; }

.lang-btn {
  color: var(--ink-soft);
  cursor: pointer;
  letter-spacing: .1em;
  padding: 2px 1px;
  transition: color 180ms ease;
  border-bottom: 1px solid transparent;
  line-height: 1;
}
.lang-btn:hover { color: var(--ink); }
.lang-btn.active {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* Social icons */
.bar-icons {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-left: 20px;
  border-left: var(--hairline);
}

.bar-icon {
  display: flex;
  align-items: center;
  color: var(--ink-soft);
  transition: color 180ms ease, transform 180ms ease;
  line-height: 1;
}
.bar-icon:hover { color: var(--ink); transform: translateY(-1px); }

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

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  padding-top: var(--space-5);
  padding-bottom: var(--space-6);
}

@media (min-width: 800px) {
  .hero {
    grid-template-columns: minmax(0,1.55fr) minmax(0,1fr);
    align-items: start;
    padding-top: var(--space-6);
  }
}

.lede {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(42px, 7.5vw, 74px);
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: var(--space-4);
}

.lede em {
  display: block;
  margin-top: var(--space-2);
  font-size: .86em;
  color: var(--ink-soft);
  font-style: italic;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.lede-builder {
  font-style: italic;
  color: var(--accent);
}

.bio {
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--ink);
  max-width: 50ch;
}

/* ─── Portrait ───────────────────────────────────────── */

.portrait {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 320px;
  justify-self: end;
}

@media (max-width: 799px) { .portrait { justify-self: start; max-width: 240px; } }

.portrait-frame {
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border: var(--hairline);
  position: relative;
  background: var(--bone-2);
  box-shadow:
    0 8px 32px rgba(26,26,24,.1),
    0 2px 8px rgba(26,26,24,.06);
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.portrait figcaption {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--ink-soft);
  letter-spacing: .01em;
  padding: 0 2px;
}

/* ─── Now ────────────────────────────────────────────── */

.now {
  padding: var(--space-5) 0;
  border-top: 2px solid var(--accent);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

@media (min-width: 800px) {
  .now {
    grid-template-columns: 100px 1fr;
    gap: var(--space-5);
    align-items: baseline;
  }
}

.now-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 400;
  padding-top: 8px;
}

.now-text {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 46ch;
}

/* ─── Section headings ───────────────────────────────── */

.section-heading {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.025em;
  color: var(--ink);
  padding-top: var(--space-5);
  padding-bottom: var(--space-4);
  border-top: var(--hairline);
}

/* ─── Selected work ──────────────────────────────────── */

.work-list { border-top: var(--hairline); }
.work-item { border-bottom: var(--hairline); }

.work-item:nth-child(1) { --stagger: 0ms; }
.work-item:nth-child(2) { --stagger: 70ms; }
.work-item:nth-child(3) { --stagger: 140ms; }

.work-item details > summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 44px 1fr auto auto;
  grid-template-rows: auto auto;
  grid-template-areas:
    "num title  year  arrow"
    "num outcome outcome arrow";
  column-gap: var(--space-3);
  row-gap: 6px;
  padding: 22px 10px;
  margin: 0 -10px;
  border-radius: 4px;
  align-items: baseline;
  transition: background-color 200ms ease;
}
.work-item details > summary::-webkit-details-marker { display: none; }
.work-item details > summary:hover { background: var(--accent-bg); }

@media (max-width: 680px) {
  .work-item details > summary {
    grid-template-columns: 36px 1fr auto;
    grid-template-areas:
      "num title  arrow"
      "num outcome arrow"
      "num year   arrow";
  }
}

.work-num {
  grid-area: num;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--ink-soft);
  padding-top: 8px;
  align-self: start;
}

.work-title {
  grid-area: title;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(21px, 2.8vw, 29px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
  align-self: start;
}

.work-outcome {
  grid-area: outcome;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
  max-width: 64ch;
  align-self: start;
  transition: color 200ms ease;
}
.work-item details > summary:hover .work-outcome { color: var(--ink); }

.work-year {
  grid-area: year;
  align-self: start;
  padding-top: 8px;
  white-space: nowrap;
}

.work-arrow {
  grid-area: arrow;
  font-size: 17px;
  color: var(--ink-soft);
  align-self: start;
  padding-top: 7px;
  transition: transform 340ms var(--ease-out), color 200ms ease;
  line-height: 1;
}
.work-item details[open] > summary .work-arrow {
  transform: rotate(180deg);
  color: var(--accent);
}
.work-item details > summary:hover .work-arrow { color: var(--accent); }

.work-body {
  padding: var(--space-3) 0 var(--space-4);
  margin-left: calc(44px + var(--space-3));
  display: grid;
  gap: var(--space-2);
  max-width: 60ch;
  animation: fadeSlideIn 380ms var(--ease-out);
}
@media (max-width: 680px) { .work-body { margin-left: calc(36px + var(--space-2)); } }

.work-body p { font-size: 15px; line-height: 1.72; color: var(--ink); }
.work-body strong { font-weight: 500; }

.work-body ul { display: grid; gap: 8px; }
.work-body li {
  font-size: 15px;
  line-height: 1.65;
  padding-left: 20px;
  position: relative;
  color: var(--ink);
}
.work-body li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 12px;
  top: 3px;
}

.work-tech { color: var(--ink-soft); padding-top: var(--space-1); }

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

/* ─── Experience ─────────────────────────────────────── */

.exp-list {
  display: flex;
  flex-direction: column;
  gap: 56px;
  padding-bottom: var(--space-4);
}

.exp-entry:nth-child(1) { --stagger: 0ms; }
.exp-entry:nth-child(2) { --stagger: 80ms; }
.exp-entry:nth-child(3) { --stagger: 160ms; }

.exp-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.exp-company {
  font-family: var(--font-display);
  font-weight: 300;
  font-style: italic;
  font-size: clamp(30px, 5vw, 52px);
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
}

.exp-dates {
  flex-shrink: 0;
  align-self: flex-end;
  padding-bottom: 3px;
}

.exp-detail {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 5px 10px;
  font-size: 14.5px;
  line-height: 1.55;
}

.exp-role { font-weight: 500; color: var(--ink); letter-spacing: -0.01em; }
.exp-dot { color: var(--rule); font-size: 16px; line-height: 1; }
.exp-impact { color: var(--ink-soft); }

/* ─── Education & certs ──────────────────────────────── */

.edu-list {
  border-top: var(--hairline);
  margin-bottom: var(--space-4);
}

.edu-item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: var(--space-3) 0;
  border-bottom: var(--hairline);
}

@media (min-width: 800px) {
  .edu-item {
    /* Wider first column so "MEng, Electrical & Computer Engineering" doesn't wrap */
    grid-template-columns: minmax(0,2.2fr) minmax(0,1fr) auto;
    gap: var(--space-3);
    align-items: baseline;
  }
}

.edu-item:nth-child(1) { --stagger: 0ms; }
.edu-item:nth-child(2) { --stagger: 60ms; }
.edu-item:nth-child(3) { --stagger: 120ms; }

.edu-title {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: -0.015em;
  line-height: 1.25;
  color: var(--ink);
}
.edu-org { font-size: 14px; color: var(--ink-soft); }

/* ─── Interests ──────────────────────────────────────── */

.interests-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5) var(--space-5);
  padding-top: var(--space-2);
  padding-bottom: var(--space-3);
}

@media (max-width: 560px) { .interests-grid { grid-template-columns: 1fr; } }

.interest-item:nth-child(1) { --stagger: 0ms; }
.interest-item:nth-child(2) { --stagger: 60ms; }
.interest-item:nth-child(3) { --stagger: 120ms; }
.interest-item:nth-child(4) { --stagger: 180ms; }

.interest-name {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(30px, 4.2vw, 46px);
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--ink);
  margin-bottom: 10px;
}

.interest-line {
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
}

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

.colophon {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--content-max);
  margin: var(--space-4) auto 0;
  padding: var(--space-4) var(--gutter) var(--space-5);
  border-top: var(--hairline);
}

.colophon .mono {
  color: var(--ink-soft);
  font-size: 11.5px;
  letter-spacing: .07em;
}

/* ─── Scroll reveal ──────────────────────────────────── */

.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity 600ms var(--ease-out),
    transform 600ms var(--ease-out);
  transition-delay: var(--stagger, 0ms);
}

.reveal.is-revealed { opacity: 1; transform: none; }

.bar      { --stagger: 0ms; }
.lede     { --stagger: 60ms; }
.bio      { --stagger: 150ms; }
.portrait { --stagger: 240ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}

/* ─── Print ──────────────────────────────────────────── */

@media print {
  body::before, body::after { display: none; }
  .bar-nav, .work-arrow, .portrait { display: none; }
  body { background: white; color: black; font-size: 11pt; }
  .reveal { opacity: 1 !important; transform: none !important; }
  .hero { grid-template-columns: 1fr; padding: 0 0 24pt; }
  a::after { display: none !important; }
}