:root {
  --bg: #090b0f;
  --surface: rgba(247, 248, 250, 0.96);
  --surface-strong: #ffffff;
  --surface-soft: rgba(255, 255, 255, 0.72);
  --text: #111318;
  --text-inverse: #f5f7fb;
  --muted: #6b7078;
  --muted-inverse: rgba(244, 247, 252, 0.66);
  --line: rgba(17, 19, 24, 0.12);
  --line-inverse: rgba(255, 255, 255, 0.14);
  --accent: #4777ff;
  --accent-soft: rgba(71, 119, 255, 0.12);
  --radius: 24px;
  --content: min(1360px, calc(100vw - 96px));
  --ease-out: cubic-bezier(.22, .61, .36, 1);
  --shadow: 0 22px 60px rgba(7, 12, 24, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 1180px;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(4, 6, 9, .48), rgba(4, 6, 9, .48)),
    url('../assets/backgrounds/dark-texture.webp');
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  font-family: Inter, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.viewer-open {
  overflow: hidden;
}

button,
a {
  font: inherit;
}

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

button {
  color: inherit;
}

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

.topbar {
  position: fixed;
  z-index: 50;
  top: 18px;
  left: 50%;
  width: var(--content);
  min-height: 60px;
  padding: 0 24px;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 999px;
  color: var(--text-inverse);
  background: rgba(9, 11, 15, 0.48);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.16);
}

.brand {
  font-size: 14px;
  font-weight: 760;
  letter-spacing: 0.10em;
}

.site-nav {
  display: flex;
  gap: 38px;
  align-items: center;
}

.site-nav a,
.topbar-role {
  font-size: 12px;
  letter-spacing: 0.08em;
}

.site-nav a {
  position: relative;
  padding: 20px 0;
  color: rgba(255, 255, 255, 0.78);
  transition: color 220ms ease;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 14px;
  height: 1px;
  transform: scaleX(0);
  transform-origin: right;
  background: #fff;
  transition: transform 250ms var(--ease-out);
}

.site-nav a:hover {
  color: #fff;
}

.site-nav a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.topbar-role {
  justify-self: end;
  color: rgba(255, 255, 255, 0.58);
}

.section-dark {
  color: var(--text-inverse);
}

.hero {
  position: relative;
  min-height: 920px;
  overflow: hidden;
}

.hero::before,
.hero::after {
  content: "";
  position: absolute;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(2px);
}

.hero::before {
  width: 720px;
  height: 720px;
  right: -110px;
  top: 90px;
  background: radial-gradient(circle, rgba(71, 119, 255, 0.18), rgba(71, 119, 255, 0.02) 46%, transparent 72%);
}

.hero::after {
  width: 520px;
  height: 520px;
  left: -180px;
  bottom: -190px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.07), transparent 68%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: var(--content);
  min-height: 920px;
  margin: 0 auto;
  padding: 180px 34px 92px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 520px;
  align-items: center;
  gap: 80px;
}

.hero-copy {
  max-width: 680px;
}

.eyebrow,
.section-heading p {
  margin: 0 0 20px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--muted-inverse);
}

.eyebrow.dark {
  color: var(--accent);
}

.hero h1 {
  margin: 0;
  font-size: clamp(82px, 7vw, 116px);
  line-height: 0.96;
  letter-spacing: -0.06em;
  font-weight: 760;
}

.hero-role {
  margin: 34px 0 0;
  font-size: 26px;
  font-weight: 650;
  letter-spacing: -0.025em;
}

.hero-role span {
  color: rgba(255, 255, 255, 0.58);
  font-size: 20px;
  font-weight: 500;
}

.hero-intro {
  max-width: 610px;
  margin: 26px 0 34px;
  color: rgba(255, 255, 255, 0.63);
  font-size: 15px;
  line-height: 1.9;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.text-link span {
  font-size: 16px;
  transition: transform 220ms var(--ease-out);
}

.text-link:hover span {
  transform: translate(4px, 3px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 18px 22px;
}

.download-menu {
  position: relative;
}

.download-menu[open] {
  z-index: 8;
}

.download-toggle {
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  cursor: pointer;
  user-select: none;
  box-shadow: 0 16px 34px rgba(5, 9, 18, 0.16);
  transition: transform 220ms var(--ease-out), border-color 220ms ease, background 220ms ease;
}

.download-toggle::-webkit-details-marker {
  display: none;
}

.download-toggle span,
.download-toggle em {
  font-style: normal;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.download-toggle em {
  color: rgba(255, 255, 255, 0.56);
  font-weight: 600;
}

.download-toggle i {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  font-size: 18px;
  line-height: 1;
  transition: transform 220ms var(--ease-out), background 220ms ease;
}

.download-toggle:hover,
.download-menu[open] .download-toggle {
  transform: translateY(-2px);
  border-color: rgba(108, 150, 255, 0.54);
  background: rgba(255, 255, 255, 0.1);
}

.download-menu[open] .download-toggle i {
  transform: rotate(45deg);
  background: rgba(71, 119, 255, 0.28);
}

.download-panel {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  min-width: 258px;
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  background: rgba(10, 15, 26, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 24px 46px rgba(0, 0, 0, 0.28);
}

.download-panel a {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.04);
  transition: transform 220ms var(--ease-out), border-color 220ms ease, background 220ms ease;
}

.download-panel a:hover {
  transform: translateY(-2px);
  border-color: rgba(109, 152, 255, 0.44);
  background: rgba(71, 119, 255, 0.12);
}

.download-panel a strong {
  font-size: 14px;
  letter-spacing: 0.01em;
}

.download-panel a small {
  color: rgba(255, 255, 255, 0.54);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-portrait-wrap {
  position: relative;
  justify-self: end;
  width: 470px;
  height: 650px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.portrait-halo {
  position: absolute;
  inset: 38px -40px 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 48% 48% 38% 38%;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.12), rgba(71, 119, 255, 0.12) 58%, rgba(255, 255, 255, 0.02));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.15), 0 32px 90px rgba(0, 0, 0, 0.26);
}

.hero-portrait {
  position: relative;
  z-index: 2;
  width: 410px;
  height: 550px;
  object-fit: cover;
  object-position: center top;
  border-radius: 30px 30px 0 0;
  filter: saturate(0.93) contrast(1.02);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.34);
}

.scroll-cue {
  position: absolute;
  left: 50%;
  bottom: 42px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.5);
  font-size: 10px;
  letter-spacing: 0.16em;
}

.scroll-cue i {
  width: 1px;
  height: 28px;
  background: linear-gradient(#fff, transparent);
  animation: scrollPulse 1.8s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: .35; transform: scaleY(.55); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); }
}

.panel-section {
  position: relative;
  color: var(--text);
  background: var(--surface);
  border-top: 1px solid rgba(255, 255, 255, 0.46);
}

.panel-section:nth-of-type(even) {
  background: rgba(251, 252, 253, 0.97);
}

.section-shell {
  width: var(--content);
  margin: 0 auto;
  padding: 106px 0;
}

.section-heading {
  display: grid;
  grid-template-columns: 190px 1fr;
  align-items: end;
  gap: 18px;
  margin-bottom: 50px;
}

.section-heading p {
  margin: 0;
  color: #8b9097;
}

.section-heading h2 {
  margin: 0;
  font-size: 40px;
  line-height: 1;
  letter-spacing: -0.04em;
}

.experience-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.experience-card {
  position: relative;
  min-height: 276px;
  padding: 30px 28px 34px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.75);
  box-shadow: 0 10px 34px rgba(14, 20, 36, 0.05);
  transition: transform 240ms var(--ease-out), box-shadow 240ms var(--ease-out), border-color 240ms ease;
}

.experience-card::after {
  content: "";
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 23px;
  height: 1px;
  background: var(--line);
}

.experience-card::before {
  content: "";
  position: absolute;
  z-index: 2;
  left: 28px;
  bottom: 18px;
  width: 11px;
  height: 11px;
  border: 3px solid #fff;
  border-radius: 50%;
  background: #9aa0a8;
  box-shadow: 0 0 0 1px rgba(17, 19, 24, 0.10);
}

.experience-card.is-current {
  border-color: rgba(71, 119, 255, 0.48);
  background: linear-gradient(145deg, #fff, rgba(71, 119, 255, 0.065));
}

.experience-card.is-current::before {
  background: var(--accent);
}

.experience-card:hover {
  transform: translateY(-7px);
  border-color: rgba(71, 119, 255, 0.36);
  box-shadow: 0 24px 56px rgba(14, 20, 36, 0.11);
}

.experience-card .time {
  display: block;
  margin-bottom: 28px;
  color: #777d86;
  font-size: 12px;
  letter-spacing: 0.03em;
}

.experience-card .status {
  position: absolute;
  right: 25px;
  top: 25px;
  padding: 5px 10px;
  border-radius: 999px;
  background: #111318;
  color: #fff;
  font-size: 10px;
}

.experience-card h3 {
  margin: 0 0 8px;
  font-size: 20px;
  letter-spacing: -0.025em;
}

.experience-card .role {
  margin: 0 0 16px;
  color: var(--accent);
  font-weight: 650;
}

.experience-card > p:last-of-type {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

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

.work-filter {
  display: flex;
  gap: 9px;
  margin: -18px 0 34px 208px;
  flex-wrap: wrap;
}

.work-filter span {
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #72777f;
  background: rgba(255, 255, 255, 0.64);
  font-size: 12px;
}

.work-filter .active {
  border-color: #111318;
  color: #fff;
  background: #111318;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.project-card {
  position: relative;
  height: 490px;
  overflow: hidden;
  border-radius: 22px;
  background: #111318;
  box-shadow: 0 16px 34px rgba(13, 19, 33, 0.13);
  cursor: pointer;
  outline: none;
  isolation: isolate;
  transition: transform 240ms var(--ease-out), box-shadow 240ms var(--ease-out);
}

.project-card:focus-visible {
  box-shadow: 0 0 0 3px rgba(71, 119, 255, 0.42), 0 20px 46px rgba(13, 19, 33, 0.18);
}

.project-card:hover {
  transform: translateY(-7px);
  box-shadow: 0 26px 52px rgba(13, 19, 33, 0.19);
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 600ms var(--ease-out), filter 500ms ease;
}

.project-card:hover img {
  transform: scale(1.045) translateY(-1%);
  filter: saturate(1.03) contrast(1.02);
}

.project-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, transparent 38%, rgba(7, 9, 13, 0.16) 56%, rgba(7, 9, 13, 0.94) 100%);
  transition: background 240ms ease;
}

.project-card:hover .project-overlay {
  background: linear-gradient(180deg, rgba(7, 9, 13, 0.03) 26%, rgba(7, 9, 13, 0.28) 53%, rgba(7, 9, 13, 0.97) 100%);
}

.project-meta {
  position: absolute;
  z-index: 2;
  left: 24px;
  right: 24px;
  bottom: 22px;
  color: #fff;
}

.project-number {
  display: block;
  margin-bottom: 10px;
  font-size: 18px;
}

.project-meta h3 {
  margin: 0;
  min-height: 58px;
  font-size: 20px;
  line-height: 1.28;
  letter-spacing: -0.02em;
}

.project-meta p {
  margin: 10px 34px 0 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: 10px;
  line-height: 1.35;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-arrow {
  position: absolute;
  right: 0;
  bottom: 2px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.42);
  border-radius: 50%;
  transition: transform 240ms var(--ease-out), background 240ms ease;
}

.project-card:hover .project-arrow {
  transform: rotate(45deg);
  background: rgba(255, 255, 255, 0.12);
}


.panel-section.motion-section {
  overflow: hidden;
  color: var(--text-inverse);
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  background:
    radial-gradient(circle at 18% 10%, rgba(52, 113, 255, 0.28), transparent 30%),
    radial-gradient(circle at 82% 84%, rgba(45, 166, 255, 0.16), transparent 31%),
    linear-gradient(rgba(4, 9, 19, 0.78), rgba(4, 9, 19, 0.88)),
    url('../assets/backgrounds/dark-texture.webp') center / cover fixed;
}

.motion-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.026) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, transparent, #000 18%, #000 82%, transparent);
}

.motion-shell {
  position: relative;
  z-index: 1;
  padding-top: 94px;
  padding-bottom: 102px;
}

.motion-heading-row {
  display: grid;
  grid-template-columns: minmax(420px, 1fr) auto auto;
  gap: 28px;
  align-items: end;
  margin-bottom: 40px;
}

.motion-section .section-heading {
  margin: 0;
}

.motion-section .section-heading p {
  color: rgba(255, 255, 255, 0.47);
}

.motion-section .section-heading h2 {
  color: #fff;
}

.motion-intro {
  margin: 0 0 4px;
  color: rgba(255, 255, 255, 0.42);
  font-size: 11px;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.motion-controls {
  display: flex;
  gap: 10px;
}

.motion-controls button {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, 0.055);
  cursor: pointer;
  font-size: 18px;
  transition: transform 220ms var(--ease-out), background 220ms ease, border-color 220ms ease;
}

.motion-controls button:hover {
  transform: translateY(-3px);
  border-color: rgba(114, 158, 255, 0.62);
  background: rgba(71, 119, 255, 0.18);
}

.motion-viewport {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 28px;
  mask-image: linear-gradient(90deg, transparent 0, #000 2%, #000 98%, transparent 100%);
}

.motion-track {
  display: flex;
  width: max-content;
  gap: 18px;
  padding: 12px 10px 18px;
  will-change: transform;
}

.motion-card {
  position: relative;
  flex: 0 0 414px;
  min-width: 414px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  background: rgba(10, 17, 30, 0.72);
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.24);
  transform: translateZ(0);
  transition: transform 260ms var(--ease-out), border-color 260ms ease, box-shadow 260ms ease;
}

.motion-card:hover {
  z-index: 2;
  transform: translateY(-7px) scale(1.012);
  border-color: rgba(112, 158, 255, 0.46);
  box-shadow: 0 30px 64px rgba(0, 0, 0, 0.38), 0 0 42px rgba(54, 105, 255, 0.10);
}

.motion-card .motion-media {
  display: block;
  width: 100%;
  height: 236px;
  padding: 10px;
  object-fit: contain;
  background:
    radial-gradient(circle at 50% 0%, rgba(71, 119, 255, 0.12), transparent 55%),
    rgba(3, 8, 17, 0.68);
  transition: transform 520ms var(--ease-out), filter 420ms ease;
}

.motion-card:hover .motion-media {
  transform: scale(1.025);
  filter: saturate(1.06) contrast(1.02);
}

.motion-card-meta {
  position: relative;
  min-height: 104px;
  padding: 20px 22px 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, rgba(14, 21, 36, 0.68), rgba(8, 13, 23, 0.94));
}

.motion-card-meta span {
  position: absolute;
  top: 20px;
  right: 22px;
  color: rgba(255, 255, 255, 0.33);
  font-size: 12px;
}

.motion-card-meta h3 {
  margin: 0 0 9px;
  color: #fff;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.motion-card-meta p {
  margin: 0;
  color: rgba(255, 255, 255, 0.40);
  font-size: 10px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.motion-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 14px 0 0;
  color: rgba(255, 255, 255, 0.34);
  font-size: 10px;
  letter-spacing: 0.14em;
}

.motion-note span {
  width: 18px;
  height: 1px;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(71, 119, 255, 0.78);
}

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

.about-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  column-gap: 50px;
  align-items: start;
}

.about-grid .section-heading {
  display: block;
  margin: 0;
}

.about-grid .section-heading p {
  margin-bottom: 14px;
}

.about-card {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 42px;
  min-height: 320px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
}

.about-card img {
  width: 260px;
  height: 320px;
  object-fit: cover;
  object-position: center top;
  border-radius: 18px;
}

.about-card > div {
  align-self: center;
  max-width: 600px;
}

.about-card h3 {
  margin: 0 0 20px;
  font-size: 38px;
  letter-spacing: -0.04em;
}

.about-card p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

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

.skills-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.72);
}

.skill-card {
  position: relative;
  min-height: 220px;
  padding: 32px 26px;
  border-right: 1px solid var(--line);
  transition: transform 240ms var(--ease-out), background 240ms ease;
}

.skill-card:last-child {
  border-right: 0;
}

.skill-card span {
  color: #a2a7ad;
  font-size: 11px;
}

.skill-card h3 {
  margin: 64px 0 8px;
  font-size: 17px;
}

.skill-card p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.has-fine-pointer .skill-card:hover {
  z-index: 2;
  transform: translateY(-7px);
  background: #fff;
  box-shadow: 0 18px 48px rgba(14, 20, 36, 0.10);
}

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

.contact-grid {
  display: grid;
  grid-template-columns: 260px 1fr 230px;
  gap: 50px;
  align-items: center;
}

.contact-grid .section-heading {
  display: block;
  margin: 0;
}

.contact-grid .section-heading p {
  margin-bottom: 14px;
}

.contact-details {
  display: grid;
  gap: 2px;
}

.contact-item {
  min-height: 76px;
  padding: 16px 0;
  display: grid;
  grid-template-columns: 88px 1fr auto;
  gap: 18px;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.contact-item span {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.11em;
}

.contact-item strong {
  font-size: 15px;
}

.contact-item button {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  cursor: pointer;
  font-size: 11px;
  transition: transform 200ms ease, border-color 200ms ease;
}

.contact-item button:hover {
  transform: translateY(-2px);
  border-color: rgba(71, 119, 255, 0.44);
}

.qr-card {
  padding: 16px 16px 14px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  cursor: pointer;
  box-shadow: 0 12px 34px rgba(14, 20, 36, 0.06);
  transition: transform 240ms var(--ease-out), box-shadow 240ms ease;
}

.qr-card img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 14px;
}

.qr-card span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 11px;
}

.qr-card:hover,
.qr-card.is-zoomed {
  transform: scale(1.08);
  box-shadow: 0 26px 54px rgba(14, 20, 36, 0.14);
}

.site-footer {
  width: var(--content);
  min-height: 140px;
  margin: 0 auto;
  padding: 36px 34px;
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: center;
  color: #fff;
}

.site-footer > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.site-footer strong {
  letter-spacing: 0.10em;
  font-size: 13px;
}

.site-footer span {
  color: rgba(255, 255, 255, 0.48);
  font-size: 11px;
}

.site-footer button {
  padding: 0;
  border: 0;
  color: rgba(255, 255, 255, 0.72);
  background: transparent;
  cursor: pointer;
  font-size: 11px;
  letter-spacing: 0.10em;
  transition: color 200ms ease, transform 200ms var(--ease-out);
}

.site-footer button:hover {
  color: #fff;
  transform: translateY(-3px);
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 720ms var(--ease-out) var(--delay, 0ms),
    transform 720ms var(--ease-out) var(--delay, 0ms);
}

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

.project-viewer {
  position: fixed;
  z-index: 100;
  inset: 0;
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 320ms ease, visibility 0s linear 320ms;
}

.project-viewer.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transition: opacity 320ms ease;
}

.viewer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 9, 0.87);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.viewer-panel {
  position: absolute;
  inset: 34px 46px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  grid-template-rows: 1fr;
  gap: 30px;
  padding: 52px 46px 40px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 30px;
  color: #fff;
  background:
    radial-gradient(circle at 85% 15%, rgba(71, 119, 255, 0.16), transparent 32%),
    rgba(11, 14, 20, 0.97);
  box-shadow: 0 40px 120px rgba(0, 0, 0, 0.48);
  transform: translateY(22px) scale(.985);
  opacity: 0;
  transition: transform 420ms var(--ease-out), opacity 360ms ease;
}

.project-viewer.is-open .viewer-panel {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.viewer-copy {
  align-self: start;
  padding: 20px 14px 0 4px;
}

#viewer-counter {
  margin: 0 0 34px;
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
  letter-spacing: 0.12em;
}

#viewer-title {
  margin: 0 0 18px;
  font-size: 34px;
  line-height: 1.18;
  letter-spacing: -0.04em;
}

#viewer-subtitle {
  margin: 0;
  color: rgba(255, 255, 255, 0.52);
  font-size: 13px;
  line-height: 1.7;
}

.viewer-scroll {
  height: calc(100vh - 126px);
  overflow-y: auto;
  overscroll-behavior: contain;
  border-radius: 18px;
  background: #05070a;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.26) transparent;
}

.viewer-scroll img {
  width: 100%;
  height: auto;
  min-height: 260px;
  transition: opacity 260ms ease, transform 320ms var(--ease-out);
}

.viewer-scroll img.is-switching {
  opacity: 0.15;
  transform: translateX(12px);
}

.viewer-close,
.viewer-prev,
.viewer-next {
  position: absolute;
  z-index: 4;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
  transition: background 200ms ease, transform 200ms var(--ease-out);
}

.viewer-close:hover,
.viewer-prev:hover,
.viewer-next:hover {
  background: rgba(255, 255, 255, 0.14);
}

.viewer-close {
  top: 18px;
  right: 18px;
  width: 42px;
  height: 42px;
  font-size: 24px;
}

.viewer-close:hover {
  transform: rotate(90deg);
}

.viewer-prev,
.viewer-next {
  top: 50%;
  width: 44px;
  height: 44px;
  transform: translateY(-50%);
}

.viewer-prev {
  left: 16px;
}

.viewer-next {
  right: 16px;
}

@media (max-width: 1360px) {
  :root {
    --content: calc(100vw - 64px);
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 430px;
    gap: 42px;
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero-portrait-wrap {
    width: 410px;
  }

  .hero-portrait {
    width: 360px;
    height: 500px;
  }

  .experience-card {
    padding-left: 22px;
    padding-right: 22px;
  }

  .project-card {
    height: 440px;
  }

  .viewer-panel {
    grid-template-columns: 280px minmax(0, 1fr);
    padding-left: 36px;
    padding-right: 36px;
  }
}

@media (min-width: 1600px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 560px;
  }

  .hero-portrait-wrap {
    width: 520px;
  }

  .hero-portrait {
    width: 440px;
    height: 590px;
  }

  .project-card {
    height: 520px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

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

/* Responsive + ambient light upgrade */
.background-effects {
  position: fixed;
  z-index: 0;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% 0%, rgba(58, 103, 255, 0.08), transparent 36%),
    linear-gradient(180deg, rgba(2, 6, 14, 0.06), rgba(2, 6, 14, 0.34));
}

.bg-glow {
  position: absolute;
  display: block;
  width: 52vw;
  height: 52vw;
  min-width: 620px;
  min-height: 620px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.28;
  mix-blend-mode: screen;
  will-change: transform;
}

.bg-glow-one {
  top: -18vw;
  right: -12vw;
  background: radial-gradient(circle, rgba(50, 108, 255, 0.62) 0%, rgba(25, 78, 220, 0.17) 45%, transparent 70%);
  animation: glowDriftOne 17s ease-in-out infinite alternate;
}

.bg-glow-two {
  top: 42vh;
  left: -22vw;
  background: radial-gradient(circle, rgba(31, 195, 255, 0.42) 0%, rgba(33, 104, 255, 0.12) 48%, transparent 72%);
  animation: glowDriftTwo 22s ease-in-out infinite alternate;
}

.bg-glow-three {
  right: 6vw;
  bottom: -24vw;
  width: 42vw;
  height: 42vw;
  background: radial-gradient(circle, rgba(100, 67, 255, 0.36) 0%, rgba(45, 80, 210, 0.10) 46%, transparent 72%);
  animation: glowDriftThree 20s ease-in-out infinite alternate;
}

@keyframes glowDriftOne {
  from { transform: translate3d(-2vw, -1vh, 0) scale(0.96); }
  to { transform: translate3d(8vw, 12vh, 0) scale(1.08); }
}

@keyframes glowDriftTwo {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(18vw, -10vh, 0) scale(1.12); }
}

@keyframes glowDriftThree {
  from { transform: translate3d(5vw, 2vh, 0) scale(0.94); }
  to { transform: translate3d(-10vw, -15vh, 0) scale(1.08); }
}

body > header,
body > main,
body > footer {
  position: relative;
  z-index: 1;
}

.panel-section:not(.motion-section) {
  background-color: rgba(249, 250, 252, 0.94);
  background-image:
    radial-gradient(circle at 88% 12%, rgba(71, 119, 255, 0.045), transparent 29%),
    radial-gradient(circle at 10% 84%, rgba(53, 186, 255, 0.035), transparent 28%);
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}

.menu-toggle {
  display: none;
}

@media (max-width: 1024px) {
  .hero-actions {
    gap: 16px;
  }

  .download-panel {
    min-width: 240px;
  }

  :root {
    --content: calc(100vw - 48px);
  }

  body {
    min-width: 0;
    overflow-x: hidden;
  }

  .topbar-role {
    display: none;
  }

  .topbar {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    justify-self: end;
  }

  .hero,
  .hero-inner {
    min-height: 820px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 34px;
    padding-top: 150px;
  }

  .hero h1 {
    font-size: clamp(68px, 8.2vw, 92px);
  }

  .hero-portrait-wrap {
    width: 350px;
    height: 560px;
  }

  .hero-portrait {
    width: 310px;
    height: 455px;
  }

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

  .project-card {
    height: 520px;
  }

  .motion-heading-row {
    grid-template-columns: 1fr auto;
  }

  .motion-intro {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .motion-card {
    flex-basis: 360px;
    min-width: 360px;
  }

  .about-grid {
    grid-template-columns: 230px 1fr;
    column-gap: 30px;
  }

  .about-card {
    grid-template-columns: 210px 1fr;
    gap: 30px;
  }

  .about-card img {
    width: 210px;
    height: 280px;
  }

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

  .skill-card {
    border-bottom: 1px solid var(--line);
  }

  .skill-card:nth-child(even) {
    border-right: 0;
  }

  .skill-card:last-child {
    grid-column: 1 / -1;
    border-bottom: 0;
  }

  .contact-grid {
    grid-template-columns: 220px 1fr;
    align-items: start;
  }

  .qr-card {
    grid-column: 2;
    width: 210px;
  }
}

@media (max-width: 768px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .download-menu {
    width: 100%;
  }

  .download-toggle {
    width: 100%;
    justify-content: space-between;
  }

  .download-panel {
    position: static;
    min-width: 0;
    width: 100%;
    margin-top: 12px;
  }

  :root {
    --content: calc(100vw - 32px);
    --radius: 20px;
  }

  body {
    min-width: 0;
    overflow-x: hidden;
    background-attachment: scroll;
  }

  body.mobile-nav-open {
    overflow: hidden;
  }

  .background-effects {
    opacity: 0.72;
  }

  .bg-glow {
    min-width: 360px;
    min-height: 360px;
    width: 105vw;
    height: 105vw;
    filter: blur(72px);
    opacity: 0.19;
  }

  .bg-glow-one { right: -48vw; top: -18vw; }
  .bg-glow-two { left: -54vw; top: 48vh; }
  .bg-glow-three { right: -40vw; bottom: -26vw; }

  .topbar {
    top: 12px;
    width: calc(100vw - 24px);
    min-height: 56px;
    padding: 0 16px;
    grid-template-columns: 1fr auto;
    border-radius: 18px;
  }

  .brand {
    font-size: 12px;
  }

  .menu-toggle {
    position: relative;
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    cursor: pointer;
  }

  .menu-toggle span {
    position: absolute;
    width: 15px;
    height: 1px;
    background: #fff;
    transition: transform 220ms var(--ease-out), top 220ms var(--ease-out);
  }

  .menu-toggle span:first-child { top: 15px; }
  .menu-toggle span:last-child { top: 21px; }
  .topbar.menu-open .menu-toggle span:first-child { top: 18px; transform: rotate(45deg); }
  .topbar.menu-open .menu-toggle span:last-child { top: 18px; transform: rotate(-45deg); }

  .site-nav {
    position: absolute;
    top: 66px;
    right: 0;
    width: min(270px, calc(100vw - 24px));
    padding: 14px;
    display: grid;
    gap: 2px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    background: rgba(8, 12, 20, 0.94);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px) scale(0.98);
    transform-origin: top right;
    pointer-events: none;
    transition: opacity 200ms ease, transform 240ms var(--ease-out), visibility 0s linear 240ms;
  }

  .topbar.menu-open .site-nav {
    visibility: visible;
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
    transition: opacity 200ms ease, transform 240ms var(--ease-out);
  }

  .site-nav a {
    padding: 14px 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 11px;
  }

  .site-nav a:last-child { border-bottom: 0; }
  .site-nav a::after { display: none; }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    min-height: 790px;
    padding: 116px 0 68px;
    grid-template-columns: 1fr;
    gap: 46px;
    align-content: start;
  }

  .hero-copy {
    max-width: none;
  }

  .hero h1 {
    font-size: clamp(58px, 18vw, 78px);
  }

  .hero-role {
    margin-top: 24px;
    font-size: 20px;
  }

  .hero-role span {
    display: block;
    margin-top: 7px;
    font-size: 15px;
  }

  .hero-intro {
    margin: 20px 0 28px;
    font-size: 14px;
    line-height: 1.78;
  }

  .hero-portrait-wrap {
    justify-self: center;
    width: min(86vw, 360px);
    height: 430px;
  }

  .portrait-halo {
    inset: 28px -15px 0;
  }

  .hero-portrait {
    width: min(76vw, 310px);
    height: 390px;
    border-radius: 24px 24px 0 0;
  }

  .scroll-cue {
    display: none;
  }

  .section-shell {
    padding: 72px 0;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-bottom: 30px;
  }

  .section-heading p {
    margin-bottom: 0;
  }

  .section-heading h2 {
    font-size: 32px;
  }

  .experience-grid {
    position: relative;
    grid-template-columns: 1fr;
    gap: 14px;
    padding-left: 17px;
  }

  .experience-grid::before {
    content: "";
    position: absolute;
    top: 12px;
    bottom: 12px;
    left: 4px;
    width: 1px;
    background: linear-gradient(var(--accent), rgba(71, 119, 255, 0.08));
  }

  .experience-card {
    min-height: 220px;
    padding: 26px 24px 31px;
  }

  .experience-card::before {
    left: -18px;
    bottom: auto;
    top: 35px;
    border-color: rgba(249, 250, 252, 0.98);
  }

  .experience-card::after {
    left: 24px;
    right: 24px;
  }

  .work-filter {
    margin: -8px -16px 26px 0;
    padding-right: 16px;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .work-filter::-webkit-scrollbar { display: none; }
  .work-filter span { flex: 0 0 auto; }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .project-card {
    height: clamp(390px, 125vw, 560px);
    border-radius: 20px;
  }

  .project-card:hover,
  .experience-card:hover,
  .motion-card:hover,
  .qr-card:hover {
    transform: none;
  }

  .motion-shell {
    padding-top: 70px;
    padding-bottom: 78px;
  }

  .motion-heading-row {
    grid-template-columns: 1fr auto;
    gap: 18px;
    margin-bottom: 24px;
  }

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

  .motion-intro {
    display: none;
  }

  .motion-controls button {
    width: 42px;
    height: 42px;
  }

  .motion-viewport {
    width: calc(100vw - 16px);
    margin-right: calc((100vw - var(--content)) / -2);
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    mask-image: linear-gradient(90deg, #000 0, #000 92%, transparent 100%);
    touch-action: pan-x;
  }

  .motion-viewport::-webkit-scrollbar { display: none; }

  .motion-track {
    gap: 12px;
    padding: 8px 22vw 14px 0;
  }

  .motion-card {
    flex-basis: min(78vw, 330px);
    min-width: min(78vw, 330px);
    scroll-snap-align: start;
    border-radius: 19px;
  }

  .motion-card .motion-media {
    height: 198px;
  }

  .motion-card-meta {
    min-height: 92px;
    padding: 17px 18px 19px;
  }

  .motion-card-meta span {
    top: 17px;
    right: 18px;
  }

  .motion-note {
    font-size: 9px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .about-card {
    grid-template-columns: 1fr;
    gap: 26px;
    padding: 20px;
  }

  .about-card img {
    width: 100%;
    height: min(108vw, 460px);
  }

  .about-card h3 {
    font-size: 34px;
  }

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

  .skill-card,
  .skill-card:nth-child(even),
  .skill-card:last-child {
    min-height: 150px;
    grid-column: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .skill-card:last-child { border-bottom: 0; }
  .skill-card h3 { margin-top: 34px; }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .contact-item {
    grid-template-columns: 70px 1fr;
    gap: 10px 14px;
  }

  .contact-item button {
    grid-column: 2;
    justify-self: start;
  }

  .qr-card {
    grid-column: auto;
    width: min(62vw, 230px);
  }

  .site-footer {
    min-height: 190px;
    padding: 32px 0 40px;
    grid-template-columns: 1fr auto;
    gap: 24px 18px;
  }

  .site-footer > div:nth-child(2) {
    grid-column: 1;
  }

  .site-footer button {
    grid-column: 2;
    grid-row: 1 / 3;
    align-self: center;
  }

  .viewer-panel {
    inset: 0;
    grid-template-columns: 1fr;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 0;
    padding: 0;
    border: 0;
    border-radius: 0;
  }

  .viewer-copy {
    min-height: 112px;
    padding: 24px 66px 18px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.10);
    background: rgba(10, 13, 19, 0.96);
  }

  #viewer-counter {
    margin-bottom: 12px;
    font-size: 10px;
  }

  #viewer-title {
    margin-bottom: 6px;
    font-size: 20px;
  }

  #viewer-subtitle {
    font-size: 10px;
  }

  .viewer-scroll {
    height: auto;
    min-height: 0;
    border-radius: 0;
  }

  .viewer-close {
    position: fixed;
    top: 14px;
    right: 14px;
    width: 42px;
    height: 42px;
  }

  .viewer-prev,
  .viewer-next {
    position: fixed;
    top: auto;
    bottom: max(14px, env(safe-area-inset-bottom));
    width: 46px;
    height: 46px;
    transform: none;
    background: rgba(8, 11, 17, 0.82);
    backdrop-filter: blur(12px);
  }

  .viewer-prev { left: 14px; }
  .viewer-next { right: 14px; }
}