/* mengjin-site · ink & jade
 * macrostructure: asymmetric bento · editorial rows · timeline rail
 * interaction: floating morph nav, tactile push buttons, counter bounce,
 *              reveal-on-view, click splash · light + dark themes
 */

@import "../../tokens.css";

@font-face {
  font-family: "Plus Jakarta Sans";
  src: url("../fonts/pjs-variable.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

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

html,
body {
  overflow-x: clip;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-base);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.012em;
}

/* ---------- atmosphere · aurora + grain ---------- */

.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.aurora span {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  will-change: transform;
}

.aurora span:nth-child(1) {
  width: 44vmax;
  height: 44vmax;
  left: -10vmax;
  top: -14vmax;
  background: var(--aurora-1);
  animation: aurora-drift-a 26s ease-in-out infinite alternate;
}

.aurora span:nth-child(2) {
  width: 38vmax;
  height: 38vmax;
  right: -12vmax;
  top: 22vh;
  background: var(--aurora-2);
  animation: aurora-drift-b 32s ease-in-out infinite alternate;
}

.aurora span:nth-child(3) {
  width: 34vmax;
  height: 34vmax;
  left: 18vw;
  bottom: -16vmax;
  background: var(--aurora-3);
  animation: aurora-drift-c 38s ease-in-out infinite alternate;
}

@keyframes aurora-drift-a {
  to {
    transform: translate3d(9vw, 5vh, 0) scale(1.12);
  }
}

@keyframes aurora-drift-b {
  to {
    transform: translate3d(-7vw, -6vh, 0) scale(0.92);
  }
}

@keyframes aurora-drift-c {
  to {
    transform: translate3d(5vw, -4vh, 0) scale(1.08);
  }
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.5;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/><feColorMatrix type='saturate' values='0'/></filter><rect width='140' height='140' filter='url(%23n)' opacity='0.03'/></svg>");
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.mono-label {
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-neutral);
}

.container {
  width: min(var(--page-max), 100% - 2 * var(--page-gutter));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: -60px;
  left: var(--space-md);
  z-index: 300;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-input);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-weight: 600;
  transition: top var(--dur-short) var(--ease-out);
}
.skip-link:focus {
  top: var(--space-md);
}

/* nav floating sentinel: 1px marker at the morph threshold */
.nav-sentinel {
  position: absolute;
  top: 80px;
  left: 0;
  width: 1px;
  height: 1px;
  pointer-events: none;
}

/* scroll progress · CSS scroll-driven animation, no JS scroll listener */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 320;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-deep));
  transform-origin: 0 50%;
  animation: progress-grow linear;
  animation-timeline: scroll(root);
}

@keyframes progress-grow {
  from {
    transform: scaleX(0);
  }
  to {
    transform: scaleX(1);
  }
}

@supports not (animation-timeline: scroll()) {
  .scroll-progress {
    display: none;
  }
}

/* ---------- nav · floating morph ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
  padding-block: 0;
  background: color-mix(in oklch, var(--color-paper) 82%, transparent);
  border-block-end: 1px solid var(--color-rule);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
  transition:
    padding-block var(--dur-long) var(--ease-out),
    background-color var(--dur-long) var(--ease-out),
    border-block-end-color var(--dur-long) var(--ease-out),
    backdrop-filter var(--dur-long) var(--ease-out);
}

.nav__inner {
  max-width: var(--page-max);
  min-height: 60px;
  margin-inline: auto;
  padding: var(--space-sm) var(--page-gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  border-radius: 0;
  background-color: transparent;
  box-shadow: none;
  transform: translateY(0);
  transition:
    max-width var(--dur-long) var(--ease-out),
    min-height var(--dur-long) var(--ease-out),
    padding-block var(--dur-long) var(--ease-out),
    border-radius var(--dur-long) var(--ease-out),
    background-color var(--dur-long) var(--ease-out),
    box-shadow var(--dur-long) var(--ease-out),
    transform var(--dur-long) var(--ease-out),
    backdrop-filter var(--dur-long) var(--ease-out);
}

.nav.is-floating {
  padding-block: var(--space-2xs);
  background-color: transparent;
  border-block-end-color: transparent;
  -webkit-backdrop-filter: blur(0);
  backdrop-filter: blur(0);
}

.nav.is-floating .nav__inner {
  max-width: 58rem;
  min-height: 52px;
  padding-block: var(--space-2xs);
  border-radius: var(--radius-pill);
  background-color: color-mix(in oklch, var(--color-paper) 88%, transparent);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow:
    var(--shadow-card),
    inset 0 0 0 1px color-mix(in oklch, var(--color-ink) 6%, transparent);
  transform: translateY(12px);
}

@media (prefers-reduced-transparency: reduce) {
  .nav {
    background: var(--color-paper);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
  .nav.is-floating .nav__inner {
    background: var(--color-paper);
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  line-height: 1;
}

.brand-orb {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-body);
  font-weight: 700;
  box-shadow:
    0 3px 0 0 var(--color-accent-deep),
    0 6px 12px -3px var(--shadow-btn-cast);
  animation: orb-pulse 4s ease-in-out infinite;
}

@keyframes orb-pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  white-space: nowrap;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__links a {
  position: relative;
  padding: var(--space-2xs) 0;
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-ink-2);
  white-space: nowrap;
  transition: color var(--dur-short) var(--ease-out);
}

.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-short) var(--ease-out);
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-ink);
}

.nav__links a:hover::after,
.nav__links a.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-rule-2);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--color-ink);
  transition:
    transform var(--dur-short) var(--ease-out),
    opacity var(--dur-short) var(--ease-out);
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

.nav__overlay {
  position: fixed;
  inset: 0;
  z-index: 290;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in oklch, var(--color-paper) 92%, transparent);
  -webkit-backdrop-filter: blur(22px);
  backdrop-filter: blur(22px);
}

.nav__overlay[hidden] {
  display: none;
}

.nav__overlay nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
}

.nav__overlay a:not(.btn) {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  color: var(--color-ink);
  opacity: 0;
  transform: translateY(var(--space-lg));
  transition:
    opacity var(--dur-long) var(--ease-out),
    transform var(--dur-long) var(--ease-out);
}

.nav__overlay.open a:not(.btn) {
  opacity: 1;
  transform: none;
}

.nav__overlay.open a:not(.btn):nth-child(1) {
  transition-delay: 60ms;
}
.nav__overlay.open a:not(.btn):nth-child(2) {
  transition-delay: 120ms;
}
.nav__overlay.open a:not(.btn):nth-child(3) {
  transition-delay: 180ms;
}
.nav__overlay.open a:not(.btn):nth-child(4) {
  transition-delay: 240ms;
}
.nav__overlay.open a:not(.btn):nth-child(5) {
  transition-delay: 300ms;
}
.nav__overlay.open .btn {
  transition-delay: 360ms;
}

/* ---------- buttons · push system ---------- */

.btn {
  --btn-face: var(--color-accent);
  --btn-ink: var(--color-accent-ink);
  --btn-edge: var(--color-accent-deep);
  --btn-cast: var(--shadow-btn-cast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.8rem 1.4rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-base);
  letter-spacing: 0.01em;
  border: 0;
  border-radius: var(--radius-pill);
  color: var(--btn-ink);
  background: var(--btn-face);
  cursor: pointer;
  position: relative;
  isolation: isolate;
  white-space: nowrap;
  box-shadow:
    0 4px 0 0 var(--btn-edge),
    0 6px 12px -3px var(--btn-cast);
  transform: translateY(0);
  transition:
    transform var(--dur-micro) var(--ease-out),
    box-shadow var(--dur-micro) var(--ease-out),
    background-color var(--dur-short) var(--ease-out),
    color var(--dur-short) var(--ease-out),
    border-color var(--dur-short) var(--ease-out);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow:
    0 6px 0 0 var(--btn-edge),
    0 12px 22px -4px var(--btn-cast);
}

.btn:active {
  transform: translateY(3px);
  box-shadow:
    0 1px 0 0 var(--btn-edge),
    0 2px 6px -2px var(--btn-cast);
  transition-duration: var(--dur-micro);
}

.btn:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.btn--sm {
  padding: 0.55rem 1.1rem;
  font-size: var(--text-sm);
}

.btn--accent {
  --btn-face: var(--color-accent);
  --btn-ink: var(--color-accent-ink);
  --btn-edge: var(--color-accent-deep);
  --btn-cast: var(--shadow-btn-cast);
}

.btn--outline {
  --btn-face: var(--color-paper);
  --btn-ink: var(--color-ink);
  --btn-edge: var(--color-rule-2);
  --btn-cast: var(--tint-ink);
  border: 1px solid var(--color-rule-2);
}

.btn--outline:hover {
  background: var(--color-paper-2);
}

.btn__arrow {
  display: inline-block;
  transition: transform var(--dur-short) var(--ease-out);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

/* ---------- click splash · feedback moment ---------- */

.click-splash {
  position: fixed;
  width: 26px;
  height: 26px;
  z-index: 400;
  pointer-events: none;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.55;
  animation: click-splash var(--dur-burst, 520ms) var(--ease-out) forwards;
}

@keyframes click-splash {
  0% {
    transform: scale(0.2);
    opacity: 0.55;
  }
  60% {
    transform: scale(1.15);
    opacity: 0.28;
  }
  100% {
    transform: scale(1.5);
    opacity: 0;
  }
}

/* ---------- hero ---------- */

.hero {
  padding: clamp(7rem, 12vh, 9rem) 0 8.5rem;
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: var(--space-2xl);
  align-items: center;
}

.hero__label {
  margin-bottom: var(--space-md);
}

.hero__name {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: var(--text-display);
  line-height: 1.06;
  letter-spacing: 0.06em;
  overflow-wrap: anywhere;
  min-width: 0;
  overflow: clip;
  padding-bottom: 0.06em;
  margin-bottom: -0.06em;
}

.hero__name .char {
  display: inline-block;
  will-change: transform;
  transform: translateY(115%) rotate(6deg);
  animation: char-rise 720ms var(--ease-out) forwards;
  animation-delay: calc(140ms + var(--i, 0) * 55ms);
}

@keyframes char-rise {
  to {
    transform: translateY(0) rotate(0deg);
  }
}

.hero__reveal {
  opacity: 0;
  animation: hero-fade-up 820ms var(--ease-out) forwards;
  animation-delay: var(--d, 0ms);
}

@keyframes hero-fade-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.hero__lede {
  margin-top: var(--space-lg);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-display-s);
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: var(--color-ink-2);
  overflow-wrap: anywhere;
  min-width: 0;
}

.hl {
  color: var(--color-accent-text);
}

.hero__sub {
  margin-top: var(--space-md);
  color: var(--color-muted);
  max-width: var(--measure);
  line-height: 1.8;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* hero media · layered art behind the portrait */
.hero__media {
  position: relative;
  display: grid;
  place-items: center;
}

.hero__art {
  position: absolute;
  width: 92%;
  aspect-ratio: 1 / 1.32;
  left: -7%;
  bottom: -7%;
  border-radius: calc(var(--radius-card) + 14px);
  overflow: hidden;
  pointer-events: none;
  opacity: 0.85;
  transform: rotate(-4deg);
  transition:
    transform var(--dur-long) var(--ease-out),
    opacity var(--dur-long) var(--ease-out);
}

.hero__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__media:hover .hero__art {
  transform: rotate(-2deg) translate(6px, -4px) scale(1.03);
  opacity: 0.95;
}

/* portrait · double-bezel: outer shell + inner core */
.hero__portrait {
  position: relative;
  width: min(380px, 100%);
  margin-inline-start: auto;
  padding: 10px;
  border-radius: calc(var(--radius-card) + 10px);
  background: var(--color-paper-2);
  border: 1px solid var(--color-rule);
  box-shadow: var(--shadow-card);
  transition:
    transform 180ms var(--ease-out),
    box-shadow var(--dur-long) var(--ease-out),
    border-color var(--dur-long) var(--ease-out);
}

.hero__portrait:hover {
  transform: translateY(-4px);
  border-color: var(--color-rule-2);
  box-shadow: var(--shadow-card-hover);
}

.portrait {
  width: 100%;
  aspect-ratio: 3 / 3.8;
  object-fit: cover;
  border-radius: var(--radius-card);
  filter: none;
}

.status-badge {
  display: inline-block;
  margin-top: var(--space-sm);
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-pill);
  border: 1px solid color-mix(in oklch, var(--color-flare) 42%, transparent);
  background: var(--tint-flare);
  color: var(--color-flare-text);
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
}

/* ---------- skills marquee ---------- */

.marquee {
  overflow: hidden;
  border-block: 1px solid var(--color-rule);
  padding-block: var(--space-sm);
  margin-block-end: var(--space-2xl);
}

.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee-slide 36s linear infinite;
}

.marquee__group {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  padding-right: 2.25rem;
  font-family: var(--font-label);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-label);
  color: var(--color-ink-2);
  white-space: nowrap;
}

.marquee__group i {
  font-style: normal;
  color: var(--color-accent);
}

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

/* ---------- bento ---------- */

.bento {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: minmax(0, auto);
  gap: var(--space-md);
  padding-block-end: var(--space-3xl);
}

.cell {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--radius-card);
  border: var(--rule-card) solid var(--tint-rule);
  background: var(--color-paper);
  box-shadow: var(--shadow-card);
  padding: var(--space-xl);
  transition:
    transform var(--dur-long) var(--ease-spring),
    box-shadow var(--dur-long) var(--ease-out),
    background-color var(--dur-long) var(--ease-out),
    border-color var(--dur-long) var(--ease-out);
}

.cell::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: radial-gradient(
    260px circle at var(--mx, 50%) var(--my, 50%),
    var(--tint-accent-strong),
    transparent 72%
  );
  opacity: 0;
  transition: opacity var(--dur-long) var(--ease-out);
}

.cell:hover::before {
  opacity: 1;
}

.cell:hover {
  transform: translateY(-4px);
  border-color: var(--color-rule-2);
  box-shadow: var(--shadow-card-hover);
}

.span-2x1 {
  grid-column: span 2;
}

.span-1x1 {
  grid-column: span 1;
}

.span-2x2 {
  grid-column: span 2;
  grid-row: span 2;
}

.cell--about {
  background:
    radial-gradient(460px 240px at 92% 0%, var(--tint-accent), transparent 68%),
    var(--color-paper-2);
}

.cell--about:hover {
  background:
    radial-gradient(460px 240px at 92% 0%, var(--tint-accent-strong), transparent 68%),
    var(--color-paper-2);
}

.cell--about h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-2xl);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-sm);
}

.cell--about p,
.cell--cap p,
.cell--flag p {
  color: var(--color-ink-2);
  line-height: var(--lh-relaxed);
  max-width: var(--measure);
}

.cell--stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-xs);
  background: var(--tint-accent);
}

.cell--stat:nth-of-type(3) {
  background: var(--tint-ink);
}

.cell--stat:nth-of-type(3) .stat-num {
  color: var(--color-flare-text);
}

.cell--stat:hover {
  background: var(--tint-accent-strong);
}

.cell--stat:nth-of-type(3):hover {
  background: var(--tint-ink-strong);
}

.stat-num {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(3rem, 5vw + 1rem, 5rem);
  line-height: 1;
  letter-spacing: var(--tracking-display);
  color: var(--color-ink);
}

.stat-num.is-done {
  animation: counter-yes 600ms var(--ease-snap) 1;
}

@keyframes counter-yes {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.06);
  }
  100% {
    transform: scale(1);
  }
}

.cell--cap {
  background: var(--color-paper-2);
}

.cell--cap:nth-of-type(5) {
  background: var(--tint-ink);
}

.cell--cap:nth-of-type(6) {
  background: var(--color-paper-2);
}

.cell--cap:hover {
  background: var(--tint-ink-strong);
}

.cell--cap:nth-of-type(5):hover {
  background: var(--tint-ink-strong);
}

.cell--cap h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-sm);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.chip-row span {
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-pill);
  border: 1px solid var(--tint-rule);
  background: color-mix(in oklch, var(--color-paper) 70%, transparent);
  font-size: var(--text-sm);
  color: var(--color-ink-2);
  white-space: nowrap;
}

.cell--flag {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  background:
    radial-gradient(460px 240px at 90% 0%, var(--tint-accent), transparent 70%),
    var(--color-paper);
  border-color: color-mix(in oklch, var(--color-accent) 30%, transparent);
}

.cell--flag > * {
  position: relative;
  z-index: 1;
}

.flag__art {
  position: absolute;
  top: 0;
  right: 0;
  width: 54%;
  height: 100%;
  border-radius: 0 var(--radius-card) var(--radius-card) 0;
  overflow: hidden;
  pointer-events: none;
}

.flag__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
  mask-image: linear-gradient(to left, black 58%, transparent 96%);
  -webkit-mask-image: linear-gradient(to left, black 58%, transparent 96%);
  transition: transform 1.2s var(--ease-out);
}

.cell--flag:hover .flag__art img {
  transform: scale(1.06);
}

.cell--flag:hover {
  background:
    radial-gradient(460px 240px at 90% 0%, var(--tint-accent-strong), transparent 70%),
    var(--color-paper);
}

.flag__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flag__arrow {
  font-size: var(--text-xl);
  color: var(--color-accent-text);
}

.cell--flag h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-3xl);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-tight);
}

.flag__kpis {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.flag__kpis span {
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  white-space: nowrap;
}

.flag__link {
  margin-top: auto;
  align-self: flex-start;
  font-weight: 600;
  color: var(--color-accent-text);
  padding: var(--space-xs) 0;
  transition: color var(--dur-short) var(--ease-out);
}

.flag__link:hover {
  color: var(--color-ink);
}

/* ---------- reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition:
    opacity var(--dur-long) var(--ease-out),
    transform var(--dur-long) var(--ease-out);
  transition-delay: var(--d, 0ms);
}

.reveal.in {
  opacity: 1;
  transform: none;
}

/* ---------- sections ---------- */

.section {
  scroll-margin-top: 90px;
  padding-block: var(--space-3xl);
}

.section__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-display-s);
  line-height: 1.16;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-xl);
  overflow-wrap: anywhere;
  min-width: 0;
  text-wrap: balance;
}

/* work list · editorial rows with period rail */

.work__list {
  border-block-start: 2px solid var(--color-ink);
}

.work__row {
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: var(--space-lg);
  align-items: start;
  padding: var(--space-lg) var(--space-sm);
  border-radius: var(--radius-card);
  transition: background-color var(--dur-short) var(--ease-out);
}

.work__row:hover {
  background: var(--color-paper-2);
}

.work__index {
  padding-top: 0.2rem;
  color: var(--color-accent-text);
  line-height: 1.5;
}

.work__main h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-xl);
  letter-spacing: 0.01em;
  margin-bottom: var(--space-2xs);
  transition: color var(--dur-short) var(--ease-out);
}

.work__row:hover .work__main h3 {
  color: var(--color-accent-text);
}

.work__main p {
  color: var(--color-ink-2);
  max-width: var(--measure);
}

.work__kpis {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-md);
  grid-column: 2;
}

.work__kpis span {
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-pill);
  background: var(--tint-accent);
  border: 1px solid var(--tint-rule);
  color: var(--color-ink-2);
  font-family: var(--font-label);
  font-size: var(--text-xs);
  white-space: nowrap;
}

.work__co {
  grid-column: 2;
  font-family: var(--font-label);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-label);
  color: var(--color-neutral);
}

/* timeline · functional rail */

.timeline {
  position: relative;
  list-style: none;
  border-block-start: 2px solid var(--color-ink);
}

.timeline::before,
.timeline::after {
  content: "";
  position: absolute;
  left: calc(8.5rem + var(--space-xl) / 2);
  top: 0;
  bottom: 0;
  width: 1px;
}

.timeline::before {
  background: var(--color-rule);
}

.timeline::after {
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-deep));
  transform-origin: top;
  transform: scaleY(0);
  animation: rail-grow linear;
  animation-timeline: view();
  animation-range: entry 12% cover 42%;
}

@keyframes rail-grow {
  to {
    transform: scaleY(1);
  }
}

@supports not (animation-timeline: view()) {
  .timeline::after {
    transform: scaleY(1);
  }
}

.tl__row {
  position: relative;
  display: grid;
  grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: var(--space-xl);
  padding: var(--space-lg) var(--space-sm) var(--space-lg) 0;
  border-radius: var(--radius-card);
  transition: background-color var(--dur-short) var(--ease-out);
}

.tl__row:hover {
  background: var(--color-paper-2);
}

.tl__year {
  line-height: 1.4;
  color: var(--color-accent-text);
}

.tl__body h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  letter-spacing: 0.01em;
  margin-bottom: var(--space-2xs);
}

.tl__body h3 span {
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  color: var(--color-accent-text);
}

.tl__body p {
  color: var(--color-ink-2);
  max-width: var(--measure);
}

/* education */

.edu__row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-lg);
  border-block-start: 2px solid var(--color-ink);
  padding-block-start: var(--space-xl);
}

.edu__item h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  letter-spacing: var(--tracking-tight);
  margin-block: var(--space-xs) var(--space-2xs);
}

.edu__item p {
  color: var(--color-ink-2);
}

/* contact */

.contact__inner {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-radius: var(--radius-card);
  border: 1px solid color-mix(in oklch, var(--color-accent) 30%, transparent);
  background:
    radial-gradient(560px 280px at 50% 0%, var(--tint-accent), transparent 72%),
    var(--color-paper-2);
  padding: var(--space-3xl) var(--space-xl);
}

.contact__inner > *:not(.contact__art) {
  position: relative;
  z-index: 1;
}

.contact__art {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -8%;
  height: 78%;
  pointer-events: none;
  opacity: 0.75;
}

.contact__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 70%;
  mask-image: linear-gradient(to top, black 30%, transparent 88%);
  -webkit-mask-image: linear-gradient(to top, black 30%, transparent 88%);
}

.contact__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--text-display-s);
  line-height: 1.18;
  letter-spacing: 0.02em;
  overflow-wrap: anywhere;
  min-width: 0;
  text-wrap: balance;
}

.contact__sub {
  margin-top: var(--space-md);
  color: var(--color-ink-2);
}

.contact__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* footer */

.site-footer {
  border-block-start: 1px solid var(--color-rule);
  padding-block: var(--space-lg);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
  color: var(--color-neutral);
}

.footer__inner a {
  padding: var(--space-2xs) 0;
  color: var(--color-ink-2);
  transition: color var(--dur-short) var(--ease-out);
}

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

/* ---------- responsive ---------- */

@media (max-width: 64rem) {
  .nav__links {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }

  .hero__grid {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-xl);
  }

  .hero__portrait {
    margin-inline-start: 0;
  }

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

  .span-2x2 {
    grid-row: auto;
  }

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

@media (max-width: 40rem) {
  .hero {
    padding: 6.5rem 0 6rem;
  }

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

  .span-2x1,
  .span-1x1,
  .span-2x2 {
    grid-column: auto;
  }

  .tl__row {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-xs);
  }

  .timeline::before,
  .timeline::after {
    display: none;
  }

  .work__row {
    grid-template-columns: minmax(0, 1fr);
    gap: var(--space-xs);
  }

  .work__co {
    grid-column: auto;
  }

  .contact__inner {
    padding: var(--space-2xl) var(--space-lg);
  }

  .btn {
    padding: 0.75rem 1.2rem;
  }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero__name .char {
    animation: none;
    transform: none;
  }

  .hero__reveal {
    animation: none;
    opacity: 1;
  }

  .marquee,
  .aurora,
  .click-splash {
    display: none;
  }

  .timeline::after {
    animation: none;
    transform: scaleY(1);
  }

  .cell::before {
    opacity: 0;
  }

  .btn:hover,
  .btn:active,
  .cell:hover,
  .hero__portrait:hover,
  .hero__media:hover .hero__art {
    transform: none;
    box-shadow: var(--shadow-card);
  }

  .hero__art {
    transform: none;
  }
}