/* ============================================================
   A.V. Vereshchagin — site-visitka
   Palette:
     --ink     #0B0E14  near-black base
     --panel   #111826  deep navy panel
     --line    #202A3B  hairline
     --cy      #C6A15B  old-gold accent (data/processing)
     --silver  #C7CFD9  primary text
     --slate   #7A8595  muted
     --paper   #F1F4F7  light text / highlights
   Type:
     display  Archivo (expanded, black)
     body     Inter
     utility  JetBrains Mono
   ============================================================ */

:root {
  --ink: #0B0E14;
  --panel: #111826;
  --line: #222D40;
  --cy: #C6A15B;
  --cy-dim: #8A7130;
  --silver: #C7CFD9;
  --slate: #7A8595;
  --paper: #F1F4F7;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --body: "Inter", system-ui, sans-serif;
  --display: "Archivo", system-ui, sans-serif;
  --head: "Vogue Highline Sans", "Archivo", system-ui, sans-serif;
  --maxw: 1220px;
  --pad: clamp(20px, 5vw, 56px);
}

@font-face {
  font-family: "Vogue Highline Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/fonts/VogueHighlineSans-Regular.woff2") format("woff2");
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  background: var(--ink);
  color: var(--silver);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

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

/* ambient film grain */
.noise {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: .04;
  will-change: transform;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.mono { font-family: var(--mono); }

.dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cy);
  margin-right: 7px;
  box-shadow: 0 0 10px var(--cy);
}
.dot--ok  { background: var(--cy);   box-shadow: 0 0 10px var(--cy); }
.dot--warn{ background: #E9B44C; box-shadow: 0 0 10px #E9B44C; }

.accent { color: var(--cy); }

/* reveal-on-scroll base: hidden only when JS is on */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .8s cubic-bezier(.2,.7,.2,1),
              transform .8s cubic-bezier(.2,.7,.2,1);
}
.js [data-reveal].revealed { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .js [data-reveal] { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .btn--primary::before, .btn--primary::after { animation: none; }
  .ticker__track { animation: none; }
  .carousel__dot.is-active::after { animation: none; }
  .ctabar { transition: none; }
}

/* ============================================================
   Status bar
   ============================================================ */
.statusbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11,14,20,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--slate);
}
.statusbar__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px var(--pad);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.statusbar__id { display: flex; align-items: center; white-space: nowrap; }
.statusbar__meta { display: flex; align-items: center; gap: 16px; }
.statusbar__shorts {
  font: 500 11px var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--cy);
  text-decoration: none;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  transition: border-color .2s, color .2s;
}
.statusbar__shorts:hover { border-color: var(--cy-dim); color: var(--paper); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(48px, 9vw, 120px) var(--pad) 0;
  position: relative;
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--slate);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}
.eyebrow__idx { color: var(--cy); }

.hero__title {
  font-family: var(--head);
  font-weight: 400;
  font-size: clamp(40px, 7vw, 84px);
  line-height: 1.02;
  letter-spacing: .01em;
  color: var(--paper);
  text-transform: uppercase;
}
.hero__title-accent {
  color: transparent;
  -webkit-text-stroke: 2px var(--cy);
}
.hero__lede {
  margin-top: 32px;
  max-width: 56ch;
  color: var(--silver);
  font-size: clamp(16px, 2vw, 18px);
}
.hero__actions {
  margin-top: 36px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.hero__contacts {
  margin-top: 40px;
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--slate);
  letter-spacing: .04em;
}

/* buttons */
.btn {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .06em;
  padding: 15px 22px 15px 24px;
  border-radius: 3px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  transition: all .22s ease;
  cursor: pointer;
  border: 1px solid transparent;
  position: relative;
}
.btn__arrow { transition: transform .22s ease; }
.btn:hover .btn__arrow { transform: translateX(5px); }
.btn--primary {
  background: var(--cy);
  color: var(--ink);
  font-weight: 600;
  box-shadow: 0 0 24px rgba(198,161,91,.25);
}
.btn--primary::before,
.btn--primary::after {
  content: "";
  position: absolute;
  border-radius: 3px;
  pointer-events: none;
}
.btn--primary::before {
  inset: -6px;
  border: 1px solid rgba(198,161,91,.55);
  animation: pulse-ring 3.2s cubic-bezier(.2,.7,.2,1) infinite;
}
.btn--primary::after {
  inset: 0;
  animation: pulse-glow 3.2s cubic-bezier(.2,.7,.2,1) infinite;
}
@keyframes pulse-ring {
  0% { transform: scale(.96); opacity: .9; }
  70% { transform: scale(1.16); opacity: 0; }
  100% { transform: scale(1.16); opacity: 0; }
}
@keyframes pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(198,161,91,.5); }
  70% { box-shadow: 0 0 0 16px rgba(198,161,91,0); }
  100% { box-shadow: 0 0 0 0 rgba(198,161,91,0); }
}
.btn--primary:hover { background: #D8BD7F; }
.btn--ghost {
  border-color: var(--line);
  color: var(--silver);
}
.btn--ghost:hover { border-color: var(--cy); color: var(--cy); }
.btn--lg { padding: 18px 30px; font-size: 14px; }

/* portrait node */
.hero__portrait { position: relative; justify-self: end; }
.portrait {
  position: relative;
  width: clamp(260px, 30vw, 380px);
  aspect-ratio: .85;
  will-change: transform;
}
.portrait__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 14px;
  filter: grayscale(1) contrast(1.1) brightness(1.02);
  position: relative;
  z-index: 2;
  border: 1px solid var(--line);
  will-change: transform;
}
.portrait__orbit {
  position: absolute;
  inset: -18px;
  border: 1px solid var(--line);
  border-radius: 50%;
  animation: spin 30s linear infinite;
}
.portrait__orbit::after {
  content: "";
  position: absolute;
  top: 10%;
  left: 50%;
  width: 8px; height: 8px;
  background: var(--cy);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--cy);
}
.portrait__orbit--b {
  inset: -34px;
  border-style: dashed;
  border-color: rgba(198,161,91,.35);
  animation-duration: 46s;
  animation-direction: reverse;
}
.portrait__node {
  position: absolute;
  top: -34px;
  right: -16px;
  z-index: 3;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--cy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 600;
  color: var(--cy);
  letter-spacing: .02em;
  box-shadow: 0 0 26px rgba(198,161,91,.4);
}
.portrait__tag {
  margin-top: 22px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--slate);
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* hero stats */
.hero__stats {
  margin-top: clamp(48px, 6vw, 72px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.stat {
  padding: 30px 24px 30px 0;
  border-right: 1px solid var(--line);
}
.stat:last-child { border-right: none; }
.stat__num {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1;
  color: var(--paper);
  display: block;
  font-variant-numeric: tabular-nums;
}
.stat__label {
  display: block;
  margin-top: 12px;
  font-size: 13px;
  color: var(--slate);
  line-height: 1.5;
}

/* ticker */
.ticker {
  margin-top: clamp(56px, 8vw, 100px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 15px 0;
  overflow: hidden;
}
.ticker__track {
  display: flex;
  width: max-content;
  will-change: transform;
  animation: ticker-move 34s linear infinite;
}
.ticker__group {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.ticker__item {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--slate);
  padding: 0 16px;
  white-space: nowrap;
}
.ticker__sep { color: var(--cy); font-size: 12px; padding-right: 4px; }
@keyframes ticker-move { to { transform: translateX(-50%); } }

/* ============================================================
   Sections
   ============================================================ */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(72px, 12vw, 150px) var(--pad);
}
.section__head { margin-bottom: clamp(40px, 6vw, 72px); }
.section__title {
  font-family: var(--head);
  font-weight: 400;
  font-size: clamp(32px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: .01em;
  color: var(--paper);
  text-transform: uppercase;
}

/* who */
.who__lead {
  font-family: var(--display);
  font-weight: 500;
  font-size: clamp(20px, 2.6vw, 27px);
  line-height: 1.35;
  color: var(--paper);
  max-width: 34ch;
  border-left: 3px solid var(--cy);
  padding-left: 24px;
  margin-bottom: 40px;
}
.who__cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  color: var(--silver);
  max-width: 70ch;
}

/* services */
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
  perspective: 1400px;
  outline: none;
}
.card:focus-visible { border-color: var(--cy); }
.card__flip {
  position: relative;
  min-height: 300px;
  transform-style: preserve-3d;
  transition: transform .65s cubic-bezier(.4,.2,.2,1);
}
.card:hover .card__flip,
.card:focus-within .card__flip,
.card.is-flipped .card__flip { transform: rotateY(180deg); }
.card__face {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.card__face--front { position: relative; padding: 34px 34px 30px; }
.card__face--back {
  position: absolute;
  inset: 0;
  padding: 34px 34px 30px;
  display: flex;
  flex-direction: column;
  background: var(--panel);
  transform: rotateY(180deg);
}
.card__face-label {
  color: var(--cy);
  font-size: 11px;
  letter-spacing: .16em;
  margin-bottom: 20px;
}
.card__face-list { display: flex; flex-direction: column; gap: 12px; }
.card__face-list li {
  font-size: 14px;
  color: var(--silver);
  line-height: 1.5;
  position: relative;
  padding-left: 18px;
}
.card__face-list li::before { content: "▸"; position: absolute; left: 0; color: var(--cy-dim); }
.card__cta {
  margin-top: auto;
  color: var(--cy);
  font-size: 12px;
  letter-spacing: .08em;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: max-content;
}
.card__cta .btn__arrow { transition: transform .22s ease; }
.card__cta:hover .btn__arrow { transform: translateX(5px); }
.card__no {
  font-size: 13px;
  color: var(--cy);
  letter-spacing: .1em;
}
.card__title {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 700;
  color: var(--paper);
  margin: 18px 0 12px;
  letter-spacing: -.01em;
}
.card__text { color: var(--silver); font-size: 15px; }
.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}
.card__tags li {
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--cy);
  border: 1px solid rgba(198,161,91,.35);
  padding: 5px 10px;
  border-radius: 3px;
}

/* projects */
.projects__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.proj {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 34px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color .25s ease, transform .25s ease;
}
.proj:hover { border-color: var(--cy-dim); transform: translateY(-4px); }
.proj__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 26px;
}
.proj__idx { color: var(--slate); font-size: 13px; }
.proj__status {
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--silver);
  display: flex;
  align-items: center;
}
.proj__title {
  font-family: var(--display);
  font-size: 28px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -.01em;
}
.proj__lede { margin: 12px 0 24px; color: var(--silver); font-size: 15px; max-width: 46ch; }
.proj__links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 12px;
  color: var(--slate);
  margin-top: auto;
}
.proj__go {
  position: absolute;
  bottom: 30px;
  right: 30px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--cy);
  opacity: 0;
  transform: translateX(-6px);
  transition: all .25s ease;
}
.proj:hover .proj__go { opacity: 1; transform: none; }

/* projects carousel */
.carousel { position: relative; }
.carousel__viewport {
  overflow: hidden;
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}
.carousel__viewport.is-dragging { cursor: grabbing; }
.carousel__viewport a, .carousel__viewport img { -webkit-user-drag: none; }
.carousel__track {
  display: flex;
  will-change: transform;
}
.carousel__slide {
  flex: 0 0 100%;
  min-width: 0;
  display: flex;
  justify-content: center;
}
.carousel__slide .proj { width: min(100%, 640px); }
.carousel__ui {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 32px;
}
.carousel__btn {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--silver);
  font-family: var(--mono);
  font-size: 16px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all .2s ease;
}
.carousel__btn:hover { border-color: var(--cy); color: var(--cy); }
.carousel__dots { display: flex; align-items: center; gap: 10px; }
.carousel__dot {
  width: 36px; height: 3px;
  padding: 0;
  border: none;
  border-radius: 2px;
  background: var(--line);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.carousel__dot.is-active::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--cy);
  border-radius: 2px;
  transform-origin: left;
  animation: dot-fill 4.5s linear forwards;
}
@keyframes dot-fill { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* stack */
.stack__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stack__group {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px;
  background: rgba(17,24,38,.4);
}
.stack__name {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--cy);
  text-transform: uppercase;
  padding-bottom: 16px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.stack__list li {
  font-size: 14px;
  color: var(--silver);
  padding: 9px 0;
  border-bottom: 1px dashed rgba(34,45,64,.6);
  position: relative;
  padding-left: 16px;
}
.stack__list li:last-child { border-bottom: none; }
.stack__list li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--cy-dim);
}

/* spheres (domains from HH resumes) */
.spheres__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.sphere {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px;
  background: rgba(17,24,38,.4);
  display: flex;
  flex-direction: column;
  transition: border-color .25s ease;
}
.sphere:hover { border-color: var(--cy-dim); }
.sphere__no {
  font-size: 12px;
  color: var(--cy-dim);
  letter-spacing: .14em;
  margin-bottom: 16px;
}
.sphere__title {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -.01em;
  margin-bottom: 12px;
}
.sphere__text {
  font-size: 14px;
  color: var(--silver);
  line-height: 1.55;
  flex: 1;
}
.sphere__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.sphere__tags li {
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--slate);
  border: 1px solid var(--line);
  padding: 4px 9px;
  border-radius: 3px;
}

/* experience timeline */
.timeline {
  position: relative;
  max-width: 820px;
  padding-left: 56px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: var(--line);
}
.timeline__item {
  position: relative;
  padding-bottom: 44px;
}
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: -46px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cy);
  box-shadow: 0 0 12px rgba(198,161,91,.45);
}
.timeline__period {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cy);
  display: block;
  margin-bottom: 8px;
}
.timeline__role {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: -.01em;
}
.timeline__org {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate);
  margin-top: 6px;
  text-transform: uppercase;
}
.timeline__note {
  font-size: 14px;
  color: var(--silver);
  margin-top: 10px;
  max-width: 52ch;
}

/* knowledge (education) */
.knowledge__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.knowledge__list li {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  background: rgba(17,24,38,.4);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.knowledge__school {
  font-size: 13px;
  color: var(--paper);
  line-height: 1.5;
}
.knowledge__spec {
  font-size: 12px;
  color: var(--slate);
  letter-spacing: .06em;
}
.knowledge__extra {
  margin-top: 28px;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--slate);
}

/* ============================================================
   Contact
   ============================================================ */
.contact {
  padding-bottom: clamp(80px, 12vw, 150px);
}
.contact__inner { max-width: 900px; }
.contact__title {
  font-family: var(--head);
  font-weight: 400;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.04;
  text-transform: uppercase;
  color: var(--paper);
  margin-bottom: 24px;
}
.contact__sub {
  color: var(--silver);
  font-size: 17px;
  max-width: 46ch;
  margin-bottom: 44px;
}
.contact__channels {
  border-top: 1px solid var(--line);
}
.channel {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 24px 8px;
  border-bottom: 1px solid var(--line);
  transition: background .2s ease, padding-left .2s ease;
}
.channel:hover { background: rgba(198,161,91,.04); padding-left: 16px; }
.channel__label {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--slate);
}
.channel__value {
  font-family: var(--display);
  font-size: clamp(17px, 2.2vw, 24px);
  font-weight: 600;
  color: var(--paper);
}
.channel__go { color: var(--cy); font-size: 12px; }
.contact__cta { margin-top: 48px; }

/* bottom CTA bar */
.ctabar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 90;
  background: rgba(11,14,20,.92);
  backdrop-filter: blur(14px);
  border-top: 1px solid rgba(34,45,64,.7);
  transform: translateY(110%);
  transition: transform .45s cubic-bezier(.2,.7,.2,1);
}
.ctabar.is-visible { transform: none; }
.ctabar__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px var(--pad);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 20px;
}
.ctabar__txt {
  font-size: 11.5px;
  letter-spacing: .07em;
  color: var(--slate);
  margin-right: auto;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ctabar__tel {
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--silver);
  transition: color .2s ease;
}
.ctabar__tel:hover { color: var(--cy); }
.ctabar__cta { padding: 11px 18px; font-size: 12px; }

/* ============================================================
   Footer
   ============================================================ */
.footer {
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--slate);
  letter-spacing: .08em;
}
.footer__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px var(--pad);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__portrait { justify-self: start; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .stack__grid { grid-template-columns: repeat(2, 1fr); }
  .spheres__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 700px) {
  .who__cols, .services__grid, .projects__list { grid-template-columns: 1fr; }
  .spheres__grid, .knowledge__list { grid-template-columns: 1fr; }
  .stack__grid { grid-template-columns: 1fr; }
  .hero__title { font-size: clamp(34px, 11vw, 52px); }
  .channel { grid-template-columns: 1fr; gap: 6px; }
  .channel__go { display: none; }
  .portrait { width: min(78vw, 320px); }
  .statusbar__meta #clock { display: none; }
  .carousel__slide { padding: 0 4px; }
  .ctabar__inner { justify-content: center; gap: 14px; }
  .ctabar__txt { display: none; }
}