:root {
  --bg: #fcfcfd;
  --paper: #ffffff;
  --surface: #f6f7f9;
  --surface-strong: #f2f4f7;
  --ink: #0b0d14;
  --muted: #646c78;
  --line: #e6e9ef;
  --line-strong: #d5dbe5;
  --radius-lg: 18px;
  --shadow-soft: 0 20px 40px -36px rgba(15, 20, 34, 0.7);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 100% 0%, #ffffff 0%, var(--bg) 62%, #f7f8fb 100%);
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.45;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(11, 13, 20, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(11, 13, 20, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 10%, black 0%, transparent 84%);
}

.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.04;
  background-image: radial-gradient(circle at 1px 1px, #000 1px, transparent 0);
  background-size: 3px 3px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 1rem clamp(1rem, 3vw, 2.8rem);
  border-bottom: 1px solid transparent;
  transition: border-color 220ms ease, background-color 220ms ease, backdrop-filter 220ms ease;
}

.topbar.is-active {
  background: rgba(252, 252, 253, 0.9);
  backdrop-filter: blur(10px);
  border-color: var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  width: 2.2rem;
  height: 2.2rem;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  background: #fff;
}

.brand-name {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.topbar-nav {
  display: inline-flex;
  align-items: center;
  gap: 1.1rem;
}

.topbar-nav a {
  text-decoration: none;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color 180ms ease;
}

.topbar-nav a:hover {
  color: var(--ink);
}

.topbar-nav a.is-current {
  color: var(--ink);
}

.lang-toggle {
  margin-left: 0.4rem;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--ink);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.32rem 0.55rem;
  border-radius: 999px;
  cursor: pointer;
  transition: transform 170ms ease, border-color 170ms ease;
  min-width: 2.1rem;
  line-height: 1;
}

.lang-toggle:hover {
  transform: translateY(-1px);
  border-color: #0f1218;
}

main,
.footer {
  width: min(1140px, 94vw);
  margin-inline: auto;
}

.section {
  padding-block: clamp(3.2rem, 8vw, 6rem);
}

.hero {
  padding-top: clamp(2.1rem, 8vw, 6.1rem);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 1rem;
  align-items: end;
}

.hero-main {
  min-width: 0;
}

.eyebrow {
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.11em;
}

.hero-tags {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin: 0 0 0.6rem 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  line-height: 1.45;
  min-width: 0;
  cursor: pointer;
  user-select: none;
}
.hero-tags .tag-label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.7rem;
  flex-shrink: 0;
}
.hero-tags .tag-marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%);
          mask-image: linear-gradient(90deg, transparent 0, #000 6%, #000 94%, transparent 100%);
  flex: 1;
  min-width: 0;
}
.hero-tags .tag-track {
  display: inline-flex;
  white-space: nowrap;
  animation: tags-scroll 16s linear infinite;
  will-change: transform;
}
.hero-tags.is-paused .tag-track { animation-play-state: paused; }
.hero-tags .tag-group {
  display: inline-flex;
  padding-right: 1.6em;
}
.hero-tags .hashtag {
  color: var(--muted);
  font-weight: 500;
}
.hero-tags .sep {
  color: var(--muted);
  opacity: 0.4;
  margin: 0 0.5em;
}
@keyframes tags-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-tags .tag-track { animation: none; }
}

h1 {
  margin-top: 1rem;
  max-width: 13ch;
  font-size: clamp(2.3rem, 8vw, 5.7rem);
  line-height: 0.98;
  letter-spacing: -0.03em;
  font-weight: 600;
}

h2 {
  margin-top: 0.95rem;
  max-width: 23ch;
  font-size: clamp(1.7rem, 4.4vw, 2.95rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 600;
}

.hero-copy {
  margin-top: 1.45rem;
  max-width: 66ch;
  color: var(--muted);
  font-size: clamp(1rem, 2.2vw, 1.26rem);
}

.hero-side {
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    radial-gradient(180% 120% at 0% 0%, #ffffff 0%, #f8f9fb 52%, #f2f4f7 100%);
  box-shadow: var(--shadow-soft);
  padding: 1.2rem;
}

.hero-side-kicker {
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero-side-title {
  margin-top: 0.7rem;
  font-size: 1.25rem;
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 600;
}

.hero-side-list {
  margin: 0.9rem 0 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-side-link {
  margin-top: 0.95rem;
  display: inline-block;
  text-decoration: none;
  color: var(--ink);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.71rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-side-link:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.actions {
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.btn {
  text-decoration: none;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  padding: 0.8rem 1.2rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: transform 170ms ease, border-color 170ms ease, background-color 170ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: #0b0d14;
  color: #fff;
  border-color: #0b0d14;
}

.btn-primary:hover {
  background: #1a1e2a;
}

.btn-ghost {
  color: var(--ink);
  background: #fff;
}

.btn-ghost:hover {
  border-color: #0f1218;
}

.metric-grid {
  margin-top: 1rem;
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.86);
  padding: 1rem;
}

.metric-label {
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.metric-value {
  margin-top: 0.65rem;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.2;
}

.metric-note {
  margin-top: 0.4rem;
  color: var(--muted);
  font-size: 0.87rem;
}

.section-head {
  margin-bottom: 1.9rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.project-grid {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.project-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, #ffffff 0%, var(--surface) 100%);
  padding: 1.24rem;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.project-card:first-child {
  grid-column: 1 / -1;
}

.project-card:hover {
  transform: translateY(-3px);
  border-color: #c6ceda;
  box-shadow: var(--shadow-soft);
}

.project-year {
  color: #4f5661;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.project-card h3 {
  margin-top: 0.72rem;
  font-size: 1.32rem;
  line-height: 1.15;
  font-weight: 600;
}

.project-card p:last-child {
  margin-top: 0.68rem;
  color: var(--muted);
}

.product-list {
  margin: 0.85rem 0 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.38rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.timeline {
  display: grid;
  gap: 0.72rem;
}

.cv-banner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.55rem;
}

.cv-banner-contacts {
  margin-top: 0;
}

.timeline-item {
  display: grid;
  grid-template-columns: minmax(180px, 220px) 1fr;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 1rem;
}

.timeline-date {
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.73rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.timeline-item h3 {
  font-size: 1.15rem;
  line-height: 1.2;
  font-weight: 600;
}

.timeline-meta {
  margin-top: 0.36rem;
  color: var(--muted);
}

.timeline-note {
  margin-top: 0.42rem;
  color: var(--muted);
}

.timeline-role-stack {
  margin-top: 0.95rem;
  padding-left: 1rem;
  border-left: 2px solid var(--line);
  display: grid;
  gap: 0.82rem;
}

.timeline-role {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.88rem 0.95rem;
  background: linear-gradient(160deg, #ffffff 0%, var(--surface) 100%);
}

.timeline-role h4 {
  margin: 0;
  font-size: 1.03rem;
  line-height: 1.26;
  font-weight: 600;
}

.timeline-role p {
  margin-top: 0.34rem;
  color: var(--muted);
}

.timeline-role ul {
  margin: 0.58rem 0 0;
  padding-left: 1rem;
  color: var(--muted);
}

.timeline-role li + li {
  margin-top: 0.34rem;
}

.section-split {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.section-split--stack {
  grid-template-columns: 1fr;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.3rem;
  background: linear-gradient(155deg, #ffffff 0%, var(--surface) 100%);
}

.panel h3 {
  margin-top: 0.72rem;
  font-size: clamp(1.28rem, 2.8vw, 1.95rem);
  line-height: 1.12;
  font-weight: 600;
}

.panel p {
  margin-top: 0.74rem;
  color: var(--muted);
}

.footer {
  padding-top: 3rem;
  padding-bottom: 3.5rem;
  border-top: 1px solid var(--line);
}

.footer h2 {
  max-width: 23ch;
}

.contact-links {
  margin-top: 1.55rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.62rem;
}

.contact-links a {
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.72rem 1rem;
  background: #fff;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: transform 170ms ease, border-color 170ms ease;
}

.contact-links a:hover {
  transform: translateY(-2px);
  border-color: #0f1218;
}

.footer-sign {
  margin-top: 1.28rem;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 560ms ease, transform 560ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Home portrait layout --- */
.hero--portrait {
  padding-top: clamp(2rem, 6vw, 4.5rem);
}

.portrait-layout {
  display: grid;
  grid-template-columns: minmax(260px, 360px) minmax(0, 1fr);
  gap: clamp(1.6rem, 5vw, 3.4rem);
  align-items: center;
}

.portrait {
  margin: 0;
  border-radius: 22px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  aspect-ratio: 698 / 900;
}

.portrait img,
.portrait video,
.portrait .portrait-media {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.portrait video > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (prefers-reduced-motion: reduce) {
  .portrait video {
    display: none;
  }
  .portrait {
    background: url("./assets/me-hero-poster.jpg") center/cover no-repeat;
  }
}

.portrait-text {
  min-width: 0;
}

.portrait-name {
  margin-top: 0.75rem;
  font-size: clamp(2.3rem, 6.5vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  max-width: none;
}

.portrait-bio {
  margin-top: 1.4rem;
  display: grid;
  gap: 0.85rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  max-width: 56ch;
}

.portrait-bio p {
  margin: 0;
}

.portrait-bio strong {
  color: var(--ink);
  font-weight: 600;
}

.portrait-links {
  margin-top: 1.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.portrait-links a {
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.6rem 0.95rem;
  background: #fff;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  transition: transform 170ms ease, border-color 170ms ease;
}

.portrait-links a:hover {
  transform: translateY(-2px);
  border-color: #0f1218;
}

@media (max-width: 860px) {
  .portrait-layout {
    grid-template-columns: minmax(110px, 38%) minmax(0, 1fr);
    gap: clamp(0.9rem, 3vw, 1.6rem);
    text-align: left;
  }

  .portrait {
    max-width: none;
  }
}

/* Phones in portrait — not enough horizontal room for two columns,
   so stack the picture on top of the text instead. Landscape phones
   (≥ 600px wide) keep the side-by-side composition. */
@media (max-width: 600px) {
  .portrait-layout {
    grid-template-columns: 1fr;
    gap: 1.4rem;
  }

  .portrait {
    max-width: 320px;
    margin-inline: auto;
  }
}

.portrait-name.typing::after {
  content: "▍";
  display: inline-block;
  margin-left: 0.05em;
  font-weight: 400;
  color: var(--ink);
  animation: portrait-name-blink 1s steps(1) infinite;
}
@keyframes portrait-name-blink {
  50% { opacity: 0; }
}

/* --- Filter chips (projects, posts) --- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.6rem;
}

.filter-chip {
  appearance: none;
  cursor: pointer;
  border: 1px solid var(--line-strong);
  background: #fff;
  color: var(--ink);
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  transition: transform 170ms ease, background-color 170ms ease, color 170ms ease, border-color 170ms ease;
}

.filter-chip:hover {
  transform: translateY(-2px);
  border-color: #0f1218;
}

.filter-chip.is-active {
  background: #0b0d14;
  color: #fff;
  border-color: #0b0d14;
}

/* --- Project tags inside cards --- */
.project-tags {
  list-style: none;
  margin: 0.55rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.project-tags li {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.22rem 0.55rem;
  background: #fff;
}

.project-links {
  margin-top: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-links a {
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  background: #fff;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: border-color 170ms ease, transform 170ms ease;
}

.project-links a:hover {
  border-color: #0f1218;
  transform: translateY(-2px);
}

/* --- Posts list --- */
.post-list {
  display: grid;
  gap: 0.85rem;
}

.post-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, #ffffff 0%, var(--surface) 100%);
  padding: 1.2rem 1.3rem;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.post-item:hover {
  transform: translateY(-2px);
  border-color: #c6ceda;
  box-shadow: var(--shadow-soft);
}

.post-date {
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.post-item h3 {
  margin-top: 0.55rem;
  font-size: 1.18rem;
  line-height: 1.22;
  font-weight: 600;
}

.post-item p {
  margin-top: 0.55rem;
  color: var(--muted);
}

.post-links {
  margin-top: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.post-links a {
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  background: #fff;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: border-color 170ms ease, transform 170ms ease;
}

.post-links a:hover {
  border-color: #0f1218;
  transform: translateY(-2px);
}

/* --- Empty state (projects / posts placeholder) --- */
.empty-state {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  background: rgba(255, 255, 255, 0.6);
  text-align: center;
}

.empty-state.is-hidden {
  display: none;
}

.empty-copy {
  margin-top: 0.75rem;
  color: var(--muted);
  max-width: 48ch;
  margin-inline: auto;
}

.empty-copy a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 1040px) {
  .hero-layout {
    grid-template-columns: 1fr;
  }

  .hero-side {
    max-width: 620px;
  }

  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .section-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .project-grid {
    grid-template-columns: 1fr;
  }

  .project-card:first-child {
    grid-column: auto;
  }

  .metric-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.72rem;
  }

  .topbar-nav {
    flex-wrap: wrap;
    gap: 0.84rem;
  }

  h1 {
    max-width: 11.2ch;
  }
}