/* ============================================================
   Валерия Цыганкова — landing v2
   Avant-garde + scientific theme.
   ============================================================ */

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

:root {
  --bg:        #0a0b0e;
  --bg-2:      #131419;
  --bg-3:      #1c1f24;
  --text:      #ebe6df;
  --text-dim:  #8b8a85;
  --text-mute: #5a5a55;
  --accent:    #d4a574;
  --accent-2:  #8eb8d4;
  --accent-3:  #b8d4a5;
  --line:      rgba(235, 230, 223, 0.10);
  --line-2:    rgba(235, 230, 223, 0.05);
  --display:   'Playfair Display', Georgia, serif;
  --sans:      'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:      'JetBrains Mono', 'Courier New', monospace;
  --ease:      cubic-bezier(0.22, 1, 0.36, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

img,
svg,
canvas {
  display: block;
  max-width: 100%;
}

img { height: auto; }

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s var(--ease);
}

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

ul, ol { list-style: none; }

::selection {
  background: var(--accent);
  color: var(--bg);
}

/* ============================================================
   BACKGROUND DECAY CANVAS (fixed full-page)
   ============================================================ */

.bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.55;
}

/* ============================================================
   GLOBAL LAYOUT SHIFT (place content above bg-canvas)
   ============================================================ */

.nav,
.hero,
.formula-strip,
.numbers,
.work,
.interlude,
.story,
.about,
.footer {
  position: relative;
  z-index: 1;
}

/* ============================================================
   NAV
   ============================================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.4rem 3rem;
  background: linear-gradient(to bottom, rgba(10, 11, 14, 0.85) 0%, rgba(10, 11, 14, 0) 100%);
  transition: background 0.4s var(--ease), padding 0.4s var(--ease);
}

.nav.is-stuck {
  background: rgba(10, 11, 14, 0.95);
  backdrop-filter: blur(12px);
  padding: 1rem 3rem;
  border-bottom: 1px solid var(--line);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--display);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  font-weight: 400;
}

.nav__brand-mark {
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--accent);
  border-radius: 2px;
  color: var(--accent);
  letter-spacing: 0.05em;
  font-style: italic;
}

.nav__menu {
  display: flex;
  gap: 2.5rem;
}

.nav__menu a {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  position: relative;
}

.nav__menu a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.4s var(--ease);
}

.nav__menu a:hover {
  color: var(--text);
}

.nav__menu a:hover::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 0;
}

.nav__toggle span {
  display: block;
  height: 1px;
  background: var(--text);
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 7rem 3rem 5rem;
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.55) contrast(1.08) saturate(0.85);
}

.hero__particles {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to top, rgba(10, 11, 14, 0.95) 0%, rgba(10, 11, 14, 0.4) 50%, rgba(10, 11, 14, 0.35) 100%),
    radial-gradient(circle at 30% 40%, rgba(212, 165, 116, 0.05), transparent 60%);
}

/* === Widgets (Geiger + Coords) === */

.hero__widget {
  position: absolute;
  z-index: 5;
}

.hero__widget--geiger {
  top: 8rem;
  right: 3rem;
  width: 130px;
}

.hero__widget--coords {
  bottom: 5.5rem;
  right: 3rem;
  text-align: right;
  font-family: var(--mono);
}

/* === Geiger widget === */

.geiger {
  background: rgba(10, 11, 14, 0.55);
  backdrop-filter: blur(8px);
  border: 1px solid var(--line);
  padding: 0.9rem 1rem 1rem;
  font-family: var(--mono);
  text-align: center;
}

.geiger__dial {
  position: relative;
  height: 60px;
  margin-bottom: 0.5rem;
}

.geiger__arc {
  width: 100%;
  height: 100%;
}

.geiger__pulse {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0;
  box-shadow: 0 0 8px var(--accent);
}

.geiger__pulse.is-pulsing {
  animation: geiger-flash 0.6s ease-out;
}

@keyframes geiger-flash {
  0%   { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(3); }
}

.geiger__readout {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.3rem;
  margin-bottom: 0.4rem;
}

.geiger__cpm {
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.05em;
  font-variant-numeric: tabular-nums;
  min-width: 3ch;
  text-align: right;
}

.geiger__unit {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-dim);
}

.geiger__label {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--text-mute);
  display: block;
}

/* === Coords widget === */

.coords {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-dim);
}

.coords span {
  position: relative;
  padding-left: 0.9rem;
}

.coords span::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
  animation: pulse 2.4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50%      { opacity: 1; }
}

/* === Hero text === */

.hero__top {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-dim);
}

.hero__meta {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.hero__meta .dot {
  color: var(--accent);
}

.hero__year {
  font-family: var(--mono);
  font-size: 0.72rem;
}

.hero__bottom {
  max-width: 1300px;
}

.hero__eyebrow {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: var(--text-dim);
  margin-bottom: 1.8rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero__iso {
  font-family: var(--mono);
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 0.2rem 0.6rem;
  font-style: italic;
  letter-spacing: 0.05em;
}

.hero__title {
  font-family: var(--display);
  font-size: clamp(3.5rem, 13vw, 11rem);
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: -0.025em;
  margin-bottom: 3rem;
  overflow: hidden;
}

.hero__title-line {
  display: block;
  opacity: 0;
  transform: translateY(110%);
  transition: opacity 1.2s var(--ease), transform 1.2s var(--ease);
}

.hero__title-line.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

.hero__title-italic {
  font-style: italic;
  color: var(--accent);
  transition-delay: 0.2s;
}

.hero__row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 3rem;
  flex-wrap: wrap;
}

.hero__sub {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 480px;
  line-height: 1.7;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.8rem;
  border: 1px solid var(--text);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  position: relative;
  overflow: hidden;
  transition: color 0.4s var(--ease);
  white-space: nowrap;
}

.hero__cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--text);
  transform: translateY(100%);
  transition: transform 0.5s var(--ease);
  z-index: -1;
}

.hero__cta:hover {
  color: var(--bg);
}

.hero__cta:hover::before {
  transform: translateY(0);
}

.hero__cta .arrow {
  display: inline-block;
  transition: transform 0.4s var(--ease);
}

.hero__cta:hover .arrow {
  transform: translateY(3px);
}

/* === Hero formula === */

.hero__formula {
  display: flex;
  flex-direction: row;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  max-width: 700px;
}

.hero__formula-eq {
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: 0.02em;
  font-style: italic;
}

.hero__formula-eq sub,
.hero__formula-eq sup {
  font-size: 0.65em;
}

.hero__formula-note {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.hero__scroll {
  position: absolute;
  right: 50%;
  bottom: 1.5rem;
  transform: translateX(50%);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--text-dim);
}

.hero__scroll-line {
  width: 30px;
  height: 1px;
  background: linear-gradient(to right, var(--text-dim), transparent);
}

/* ============================================================
   FORMULA STRIP (marquee)
   ============================================================ */

.formula-strip {
  background: var(--bg-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
  overflow: hidden;
  white-space: nowrap;
}

.formula-strip__track {
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  animation: marquee 60s linear infinite;
  white-space: nowrap;
  will-change: transform;
}

.formula-strip__item {
  font-style: italic;
}

.formula-strip__item sub,
.formula-strip__item sup {
  font-size: 0.7em;
}

.formula-strip__sep {
  color: var(--accent);
  font-size: 0.7rem;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============================================================
   NUMBERS
   ============================================================ */

.numbers {
  background: var(--bg);
  padding: 9rem 3rem 7rem;
  border-top: 1px solid var(--line);
}

.numbers__header {
  max-width: 1300px;
  margin: 0 auto 4rem;
}

.numbers__eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.numbers__title {
  font-family: var(--display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.02em;
}

.numbers__title em {
  font-style: italic;
  color: var(--accent);
}

.numbers__grid {
  max-width: 1300px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 5rem;
  align-items: center;
}

.numbers__cells {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3rem 2rem;
}

.numbers__cell {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.numbers__val {
  font-family: var(--display);
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 400;
  line-height: 1;
  color: var(--text);
  letter-spacing: -0.025em;
  font-variant-numeric: tabular-nums;
}

.numbers__lbl {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  color: var(--text-dim);
  line-height: 1.5;
}

.numbers__lbl sub {
  font-size: 0.7em;
}

.numbers__chart {
  border: 1px solid var(--line);
  padding: 1.5rem;
  background: var(--bg-2);
  position: relative;
}

.numbers__chart-cap {
  font-family: var(--mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  margin-bottom: 1rem;
}

.decay-graph {
  width: 100%;
  height: auto;
}

#curve-line {
  animation: draw-curve 3s var(--ease) 0.5s forwards;
}

@keyframes draw-curve {
  to { stroke-dashoffset: 0; }
}

/* ============================================================
   WORK
   ============================================================ */

.work {
  background: var(--bg);
  padding: 8rem 3rem 10rem;
}

.work__header {
  max-width: 1300px;
  margin: 0 auto 5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: 3rem;
  row-gap: 1rem;
  align-items: end;
}

.work__eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
}

.work__title {
  font-family: var(--display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: -0.025em;
}

.work__caption {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 460px;
  align-self: end;
}

.work__grid {
  max-width: 1300px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 4rem;
  align-items: start;
}

.work__list {
  border-top: 1px solid var(--line);
}

.work__item {
  padding: 2.4rem 0;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  transition: opacity 0.4s var(--ease);
  outline: none;
  opacity: 0.55;
}

.work__item.is-active,
.work__item:hover,
.work__item:focus {
  opacity: 1;
}

.work__item-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.work__iso-badge {
  font-family: var(--mono);
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  letter-spacing: 0.05em;
  font-style: italic;
}

.work__iso-badge--rn {
  border-color: var(--accent-2);
  color: var(--accent-2);
}

.work__iso-badge--c {
  border-color: var(--accent-3);
  color: var(--accent-3);
}

.work__iso-badge--field {
  border-color: var(--text-dim);
  color: var(--text-dim);
}

.work__num {
  font-family: var(--display);
  font-style: italic;
  color: var(--accent);
  font-size: 1rem;
}

.work__arrow {
  margin-left: auto;
  font-size: 0.95rem;
  color: var(--text-mute);
  opacity: 0;
  transform: translateX(-10px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), color 0.4s var(--ease);
}

.work__item.is-active .work__arrow,
.work__item:hover .work__arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--accent);
}

.work__name {
  font-family: var(--display);
  font-size: clamp(1.5rem, 2.3vw, 2rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 0.6rem;
}

.work__year {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-dim);
  margin-bottom: 0.7rem;
}

.work__note {
  font-size: 0.95rem;
  color: var(--text-dim);
  line-height: 1.6;
  max-width: 420px;
  margin-bottom: 0.8rem;
}

.work__meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-mute);
  letter-spacing: 0.05em;
}

.work__meta sub {
  font-size: 0.7em;
}

/* === Viewer === */

.work__viewer {
  position: sticky;
  top: 7rem;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--bg-2);
  border: 1px solid var(--line-2);
}

.work__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: translateY(100%) scale(1.05);
  transition: opacity 0.7s var(--ease), transform 0.9s var(--ease);
  will-change: transform, opacity;
}

.work__image.is-active {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.work__viewer-cap {
  position: absolute;
  left: 1.5rem;
  bottom: 1.5rem;
  padding: 0.5rem 0.9rem;
  background: rgba(10, 11, 14, 0.7);
  backdrop-filter: blur(6px);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text);
  z-index: 2;
  transition: opacity 0.4s var(--ease);
}

.work__viewer-coord {
  position: absolute;
  right: 1.5rem;
  top: 1.5rem;
  padding: 0.4rem 0.7rem;
  background: rgba(10, 11, 14, 0.6);
  backdrop-filter: blur(6px);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  z-index: 2;
}

.work__viewer-orbit {
  position: absolute;
  right: -50px;
  bottom: -50px;
  width: 250px;
  height: 250px;
  z-index: 1;
  opacity: 0.4;
  animation: spin 60s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================================
   INTERLUDES
   ============================================================ */

.interlude {
  background: var(--bg);
  padding: 9rem 3rem;
  text-align: center;
  position: relative;
  border-top: 1px solid var(--line-2);
}

.interlude__index {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 2rem;
  font-family: var(--mono);
}

.interlude__decor {
  display: flex;
  justify-content: center;
  margin-bottom: 2.5rem;
}

.interlude__orbit {
  width: 80px;
  height: 80px;
}

.interlude-note {
  max-width: 850px;
  margin: 0 auto;
  position: relative;
}

.interlude-note p {
  font-family: var(--display);
  font-style: italic;
  font-size: clamp(1.5rem, 3.4vw, 2.5rem);
  line-height: 1.4;
  color: var(--text);
  letter-spacing: -0.01em;
}

.interlude-note footer {
  font-family: var(--sans);
  font-style: normal;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--text-dim);
  margin-top: 2.5rem;
}

/* === Shoot notes (chapter) === */

.interlude--shoot {
  text-align: left;
  padding: 8rem 3rem;
  background: var(--bg-2);
}

.shoot {
  max-width: 1100px;
  margin: 0 auto;
}

.shoot__index {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  font-family: var(--mono);
}

.shoot__title {
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  margin-bottom: 3rem;
}

.shoot__list {
  border-top: 1px solid var(--line);
}

.shoot__list li {
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  align-items: start;
}

.shoot__num {
  font-family: var(--display);
  font-style: italic;
  color: var(--accent);
  font-size: 1.3rem;
  padding-top: 0.1rem;
}

.shoot__head {
  font-family: var(--display);
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.shoot__body {
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.7;
}

/* ============================================================
   FEATURED STORY
   ============================================================ */

.story {
  position: relative;
  height: 100vh;
  min-height: 700px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 5rem;
}

.story__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.story__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.55) contrast(1.1) saturate(0.85);
}

.story__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(to top, rgba(10, 11, 14, 0.92) 0%, rgba(10, 11, 14, 0.2) 60%, rgba(10, 11, 14, 0.2) 100%);
}

.story__snow {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.story__content {
  max-width: 760px;
  position: relative;
  z-index: 2;
}

.story__eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-family: var(--mono);
}

.story__title {
  font-family: var(--display);
  font-size: clamp(2.4rem, 5.5vw, 4.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 2rem;
}

.story__text {
  color: var(--text-dim);
  font-size: 1.1rem;
  line-height: 1.75;
  max-width: 620px;
  margin-bottom: 2rem;
}

.story__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-dim);
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
  font-family: var(--mono);
}

.story__meta .dot {
  color: var(--accent);
}

.story__meta b {
  color: var(--text);
  font-weight: 500;
}

/* ============================================================
   ABOUT
   ============================================================ */

.about {
  padding: 9rem 3rem;
  max-width: 1300px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.65fr 1.35fr;
  gap: 6rem;
  align-items: start;
}

.about__portrait {
  position: sticky;
  top: 7rem;
}

.about__portrait-frame {
  position: relative;
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--bg-2);
  aspect-ratio: 3 / 4;
}

.about__portrait-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(0.5) contrast(1.05);
  transition: filter 0.8s var(--ease), transform 1.2s var(--ease);
}

.about__portrait-frame:hover img {
  filter: grayscale(0) contrast(1.05);
  transform: scale(1.04);
}

.about__portrait-corner {
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--accent);
  border-style: solid;
  border-width: 0;
  z-index: 2;
  pointer-events: none;
}

.about__portrait-corner--tl { top: 8px;    left: 8px;    border-top-width: 1px;    border-left-width: 1px; }
.about__portrait-corner--tr { top: 8px;    right: 8px;   border-top-width: 1px;    border-right-width: 1px; }
.about__portrait-corner--bl { bottom: 8px; left: 8px;    border-bottom-width: 1px; border-left-width: 1px; }
.about__portrait-corner--br { bottom: 8px; right: 8px;   border-bottom-width: 1px; border-right-width: 1px; }

.about__portrait-cap {
  margin-top: 1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-dim);
}

.about__eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  font-family: var(--mono);
}

.about__heading {
  font-family: var(--display);
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 3rem;
}

.about__heading em {
  font-style: italic;
  color: var(--accent);
}

.about__paragraphs {
  border-top: 1px solid var(--line);
  padding-top: 2rem;
}

.about__p {
  margin-bottom: 1.5rem;
  color: var(--text-dim);
  font-size: 1.05rem;
  line-height: 1.85;
}

.about__p:first-of-type::first-letter {
  font-family: var(--display);
  font-size: 3.5em;
  float: left;
  line-height: 0.9;
  margin: 0.05em 0.15em 0 0;
  color: var(--accent);
  font-style: italic;
}

.about__list {
  margin-top: 3rem;
  border-top: 1px solid var(--line);
}

.about__list li {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
}

.about__list li > span:first-child {
  font-family: var(--display);
  font-style: italic;
  color: var(--accent);
  font-size: 1.15rem;
  min-width: 70px;
}

.about__list li > span:last-child {
  color: var(--text-dim);
  font-size: 1rem;
}

/* ============================================================
   FOOTER + PERIODIC STRIP
   ============================================================ */

.footer {
  background: var(--bg-2);
  padding: 0 3rem 2.5rem;
  border-top: 1px solid var(--line);
}

.periodic-strip {
  display: flex;
  gap: 0.6rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 4rem;
  flex-wrap: wrap;
  justify-content: center;
}

.pe {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 80px;
  height: 90px;
  border: 1px solid var(--line);
  padding: 0.5rem;
  font-family: var(--mono);
  text-align: center;
  position: relative;
  background: var(--bg-2);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}

.pe:hover {
  transform: translateY(-3px);
}

.pe__n {
  font-size: 0.7rem;
  color: var(--text-mute);
  position: absolute;
  top: 0.4rem;
  left: 0.5rem;
}

.pe__sym {
  font-size: 1.6rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  margin-bottom: 0.1rem;
}

.pe__name {
  font-size: 0.55rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.pe--c  { border-color: var(--accent); }
.pe--c  .pe__sym { color: var(--accent); }
.pe--n  { border-color: var(--accent-3); }
.pe--n  .pe__sym { color: var(--accent-3); }
.pe--rn { border-color: var(--accent-2); }
.pe--rn .pe__sym { color: var(--accent-2); }
.pe--po { border-color: var(--text-mute); }
.pe--po .pe__sym { color: var(--text-dim); }
.pe--pb { border-color: var(--text-mute); }
.pe--pb .pe__sym { color: var(--text-dim); }

.footer__top {
  max-width: 1300px;
  margin: 0 auto 4rem;
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.5fr;
  gap: 3rem;
}

.footer__brand-line {
  font-family: var(--display);
  font-size: clamp(2rem, 3vw, 2.6rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.015em;
}

.footer__brand-line em {
  font-style: italic;
  color: var(--accent);
}

.footer__brand-tag {
  margin-top: 1.2rem;
  color: var(--text-dim);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
}

.footer__heading {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  margin-bottom: 1.3rem;
  color: var(--text);
}

.footer__col ul li {
  padding: 0.35rem 0;
  color: var(--text-dim);
  font-size: 0.95rem;
}

.footer__col a:hover {
  color: var(--accent);
}

.footer__tag {
  color: var(--text-dim);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.footer__form {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--text);
  transition: border-color 0.4s var(--ease);
}

.footer__form:focus-within {
  border-color: var(--accent);
}

.footer__form input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  padding: 0.7rem 0;
  font-family: var(--sans);
  font-size: 0.95rem;
  outline: none;
}

.footer__form input::placeholder {
  color: var(--text-mute);
}

.footer__form button {
  font-size: 1.3rem;
  padding: 0.4rem 0.8rem;
  color: var(--text);
  transition: color 0.3s var(--ease), transform 0.3s var(--ease);
}

.footer__form button:hover {
  color: var(--accent);
  transform: translateX(3px);
}

.footer__msg {
  margin-top: 0.7rem;
  font-size: 0.82rem;
  color: var(--accent);
  min-height: 1.2em;
  font-style: italic;
}

.footer__bottom {
  max-width: 1300px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

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

/* ============================================================
   REVEAL ANIMATION (scroll fade-in)
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1.2s var(--ease), transform 1.2s var(--ease);
}

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

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1100px) {
  .numbers__grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .footer__top {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
  .footer__col--news {
    grid-column: span 2;
  }
  .hero__widget--geiger {
    width: 110px;
  }
  .hero__formula {
    font-size: 0.95rem;
  }
}

@media (max-width: 900px) {
  .nav {
    padding: 1rem 1.5rem;
  }
  .nav__menu {
    display: none;
  }
  .nav__menu.is-open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg);
    padding: 1.5rem 2rem 2rem;
    border-bottom: 1px solid var(--line);
    gap: 1rem;
  }
  .nav__toggle {
    display: flex;
  }
  .nav.is-stuck {
    padding: 0.8rem 1.5rem;
  }

  /* === HERO (mobile) === */
  .hero {
    padding: 6rem 1.5rem 2.5rem;
  }
  .hero__widget--geiger {
    top: 4.5rem;
    right: 1.5rem;
    width: 95px;
    padding: 0;
  }
  .hero__widget--geiger .geiger {
    padding: 0.5rem 0.6rem 0.7rem;
  }
  .geiger__dial { height: 38px; margin-bottom: 0.3rem; }
  .geiger__cpm { font-size: 1.05rem; }
  .geiger__label { font-size: 0.5rem; letter-spacing: 0.15em; }

  .hero__widget--coords { display: none; }

  .hero__top {
    font-size: 0.7rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .hero__meta { flex-wrap: wrap; }
  .hero__year { font-size: 0.65rem; }

  .hero__eyebrow {
    font-size: 0.7rem;
    letter-spacing: 0.18em;
    flex-wrap: wrap;
    margin-bottom: 1.2rem;
  }

  .hero__title {
    font-size: clamp(2.8rem, 12vw, 5rem);
    margin-bottom: 1.8rem;
  }

  .hero__sub {
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
  }

  .hero__cta {
    padding: 0.9rem 1.5rem;
    font-size: 0.72rem;
    letter-spacing: 0.18em;
  }

  /* hero formula — put it inline in flow */
  /* hero formula — already in flow, just tune */
  .hero__formula {
    margin-top: 2rem;
    max-width: none;
    gap: 0.6rem 1rem;
  }
  .hero__formula-eq { font-size: 1rem; }

  .hero__scroll { display: none; }
  .hero__row {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
  }

  /* === Numbers === */
  .numbers { padding: 5rem 1.5rem; }
  .numbers__cells {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem 1.5rem;
  }
  .numbers__header { margin-bottom: 3rem; }

  /* === Work === */
  .work { padding: 5rem 1.5rem 7rem; }
  .work__header {
    grid-template-columns: 1fr;
    row-gap: 1rem;
    margin-bottom: 3rem;
  }
  .work__caption {
    grid-column: 1;
  }
  .work__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .work__viewer {
    position: relative;
    top: 0;
    aspect-ratio: 4 / 3;
  }
  .work__item { padding: 1.8rem 0; }

  /* === Interlude === */
  .interlude { padding: 5rem 1.5rem; }
  .interlude--shoot { padding: 5rem 1.5rem; }
  .shoot__list li {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  /* === Story === */
  .story {
    padding: 3rem 1.5rem;
    min-height: 600px;
  }
  .story__meta {
    font-size: 0.7rem;
    gap: 0.7rem;
  }

  /* === About === */
  .about {
    padding: 5rem 1.5rem;
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .about__portrait { position: relative; top: 0; }

  /* === Footer === */
  .footer { padding: 0 1.5rem 2rem; }
  .periodic-strip {
    gap: 0.4rem;
    padding: 1.5rem 0;
    margin-bottom: 3rem;
  }
  .pe {
    width: 60px;
    height: 70px;
  }
  .pe__sym { font-size: 1.2rem; }
  .footer__top {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer__col--news { grid-column: auto; }
  .footer__bottom {
    flex-direction: column;
    text-align: left;
  }

  /* === Formula strip === */
  .formula-strip__track {
    font-size: 0.75rem;
    gap: 1rem;
  }
}

@media (max-width: 600px) {
  /* Hide geiger widget completely on very small screens */
  .hero__widget--geiger { display: none; }
  .hero { padding-top: 5rem; }
}

@media (max-width: 480px) {
  .numbers__cells {
    grid-template-columns: 1fr;
  }
  .hero__title {
    font-size: clamp(2.4rem, 13vw, 3.8rem);
  }
  .hero__eyebrow { font-size: 0.65rem; }
  .hero__sub { font-size: 0.9rem; }
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .bg-canvas,
  .hero__particles,
  .story__snow {
    display: none;
  }
}