:root {
  --color-white: #ffffff;
  --color-surface: #fbfcfa;
  --color-background: #f7f8f6;
  --color-black: #121715;
  --color-text: #242a27;
  --color-text-muted: #68716c;
  --color-green: #0a714e;
  --color-green-dark: #07583d;
  --color-green-soft: #e5f0eb;
  --color-gray-border: #dfe4e1;
  --color-gray-bg: #edf1ee;
  --shadow-sm: 0 12px 32px rgba(24, 45, 36, 0.07);
  --shadow-md: 0 24px 60px rgba(21, 43, 34, 0.13);
  --shadow-modal: 0 40px 100px rgba(6, 23, 17, 0.26);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 26px;
  --container: 1180px;
  --header-height: 76px;
  --space-xl: clamp(88px, 10vw, 132px);
  --transition: 220ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 18px);
}

body {
  margin: 0;
  overflow-x: hidden;
  color: var(--color-text);
  background:
    radial-gradient(
      circle at 5% 5%,
      rgba(10, 113, 78, 0.075),
      transparent 28rem
    ),
    radial-gradient(
      circle at 96% 34%,
      rgba(10, 113, 78, 0.045),
      transparent 30rem
    ),
    var(--color-background);
  font-family: "Inter", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.modal-open {
  overflow: hidden;
}

::selection {
  color: var(--color-white);
  background: var(--color-green);
}

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

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

button,
input,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

h1,
h2,
h3,
h4,
p,
dl,
dd {
  margin: 0;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 4px;
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 9999;
  padding: 10px 16px;
  color: var(--color-white);
  background: var(--color-black);
  border-radius: var(--radius-sm);
  transform: translateY(-160%);
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

.eyebrow {
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--color-green);
}

.section-heading {
  margin-bottom: 42px;
}

.section-heading h2 {
  max-width: 780px;
  margin-top: 8px;
  font-size: clamp(2rem, 4vw, 3.15rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.045em;
  color: var(--color-black);
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 700ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

.btn {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 19px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 650;
  line-height: 1;
  cursor: pointer;
  transition:
    transform var(--transition),
    color var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

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

.btn-primary {
  color: var(--color-white);
  background: var(--color-green);
  box-shadow: 0 10px 26px rgba(10, 113, 78, 0.18);
}

.btn-primary:hover {
  background: var(--color-green-dark);
  box-shadow: 0 14px 32px rgba(10, 113, 78, 0.25);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.48);
  border-color: #bfc8c2;
}

.btn-outline:hover {
  background: var(--color-white);
  border-color: var(--color-green);
}

.btn-text {
  padding-inline: 8px;
}

.btn-text span:last-child {
  transition: transform var(--transition);
}

.btn-text:hover {
  color: var(--color-green);
}

.btn-text:hover span:last-child {
  transform: translateX(4px);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(247, 248, 246, 0.83);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px) saturate(1.25);
  -webkit-backdrop-filter: blur(16px) saturate(1.25);
  transition:
    border-color var(--transition),
    box-shadow var(--transition),
    background-color var(--transition);
}

.site-header.is-scrolled {
  background: rgba(247, 248, 246, 0.94);
  border-color: rgba(194, 203, 198, 0.7);
  box-shadow: 0 9px 28px rgba(22, 41, 33, 0.055);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
}

.logo {
  position: relative;
  z-index: 3;
  font-size: 1.03rem;
  font-weight: 750;
  letter-spacing: -0.035em;
  color: var(--color-black);
}

.logo-dot {
  color: var(--color-green);
}

.nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-link {
  position: relative;
  padding-block: 7px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1.5px;
  background: var(--color-green);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-black);
}

.nav-link.is-active::after,
.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 30px;
}

.language-switch {
  position: relative;
  width: 76px;
  height: 34px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  padding: 3px;
  overflow: hidden;
  background: var(--color-gray-bg);
  border: 1px solid #d4dcd7;
  border-radius: 999px;
  cursor: pointer;
}

.language-option {
  position: relative;
  z-index: 2;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.language-option.is-active {
  color: var(--color-white);
}

.language-thumb {
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 3px;
  z-index: 1;
  width: 33px;
  background: var(--color-green);
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(10, 113, 78, 0.22);
  transition: transform var(--transition);
}

.language-switch[aria-checked="true"] .language-thumb {
  transform: translateX(36px);
}

.nav-toggle {
  width: 40px;
  height: 40px;
  display: none;
  padding: 9px;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.nav-toggle span {
  width: 100%;
  height: 1.5px;
  display: block;
  margin: 5px 0;
  background: var(--color-black);
  transition: transform var(--transition);
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: clamp(64px, 8vw, 100px) 0;
}

.hero::before {
  content: "";
  position: absolute;
  top: 5%;
  right: -12%;
  width: min(52vw, 710px);
  aspect-ratio: 1;
  border: 1px solid rgba(10, 113, 78, 0.09);
  border-radius: 50%;
  box-shadow:
    inset 0 0 0 56px rgba(10, 113, 78, 0.018),
    inset 0 0 0 130px rgba(10, 113, 78, 0.012);
  pointer-events: none;
}

.hero-orbit {
  position: absolute;
  border: 1px solid rgba(10, 113, 78, 0.11);
  border-radius: 50%;
  pointer-events: none;
}

.hero-orbit-one {
  right: 6%;
  bottom: 15%;
  width: 68px;
  height: 68px;
}

.hero-orbit-two {
  top: 12%;
  left: 3%;
  width: 18px;
  height: 18px;
  background: rgba(10, 113, 78, 0.08);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.24fr) minmax(260px, 0.76fr);
  gap: clamp(58px, 9vw, 128px);
  align-items: center;
}

.hero-text {
  max-width: 760px;
}

.hero-title {
  margin-top: 10px;
  font-size: clamp(4rem, 8.6vw, 7.5rem);
  font-weight: 750;
  line-height: 0.92;
  letter-spacing: -0.075em;
  color: var(--color-black);
}

.hero-role {
  max-width: 690px;
  margin-top: 30px;
  font-size: clamp(1.2rem, 2.1vw, 1.72rem);
  font-weight: 560;
  line-height: 1.38;
  letter-spacing: -0.024em;
  color: #2e3732;
}

.hero-intro {
  max-width: 650px;
  margin-top: 15px;
  font-size: 0.96rem;
  color: var(--color-text-muted);
}

.hero-facts {
  max-width: 680px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: 30px;
  padding: 18px 0;
  border-top: 1px solid var(--color-gray-border);
  border-bottom: 1px solid var(--color-gray-border);
}

.hero-facts div {
  min-width: 0;
  padding-inline: 18px;
  border-right: 1px solid var(--color-gray-border);
}

.hero-facts div:first-child {
  padding-left: 0;
}

.hero-facts div:last-child {
  padding-right: 0;
  border-right: 0;
}

.hero-facts dt {
  font-size: 1.2rem;
  font-weight: 750;
  line-height: 1.1;
  letter-spacing: -0.035em;
  color: var(--color-green);
}

.hero-facts dd {
  margin-top: 4px;
  font-size: 0.69rem;
  font-weight: 550;
  line-height: 1.35;
  color: var(--color-text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 11px;
  margin-top: 31px;
}

.hero-media {
  position: relative;
  justify-self: center;
  width: min(100%, 320px);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.portrait-halo {
  position: absolute;
  top: -30px;
  width: calc(100% + 60px);
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(10, 113, 78, 0.12), transparent 68%);
  border-radius: 50%;
  filter: blur(4px);
}

.hero-media-frame {
  position: relative;
  width: min(100%, 284px);
  aspect-ratio: 1;
  padding: 8px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(10, 113, 78, 0.18);
  border-radius: 50%;
  box-shadow:
    0 24px 70px rgba(19, 49, 37, 0.14),
    0 0 0 14px rgba(255, 255, 255, 0.35);
}

.hero-media-frame::after {
  content: "";
  position: absolute;
  right: -8px;
  bottom: 34px;
  width: 20px;
  height: 20px;
  background: var(--color-green);
  border: 5px solid var(--color-background);
  border-radius: 50%;
}

.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 28%;
  border-radius: 50%;
  filter: saturate(0.92) contrast(1.02);
}

.portrait-caption {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
}

.status-dot {
  width: 7px;
  height: 7px;
  background: var(--color-green);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(10, 113, 78, 0.1);
}

.img-fallback {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  color: var(--color-green);
  background:
    linear-gradient(135deg, rgba(10, 113, 78, 0.07), transparent 55%),
    var(--color-gray-bg);
}

.hero-media-frame .img-fallback {
  border-radius: 50%;
}

.img-fallback svg {
  width: 42px;
  height: 42px;
}

/* About */
.about {
  position: relative;
  padding: var(--space-xl) 0;
  background: rgba(255, 255, 255, 0.72);
  border-top: 1px solid rgba(223, 228, 225, 0.8);
  border-bottom: 1px solid rgba(223, 228, 225, 0.8);
}

.about-content {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.75fr);
  gap: 38px 76px;
}

.about-text {
  max-width: 760px;
  font-size: clamp(1.08rem, 1.75vw, 1.35rem);
  line-height: 1.2;
  letter-spacing: -0.018em;
}

.education-note {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 18px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--color-gray-border);
}

.education-kicker,
.skills-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-green);
}

.education-note p {
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--color-text-muted);
}

.skills {
  padding: 24px;
  align-self: start;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.9),
    rgba(239, 244, 241, 0.72)
  );
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.skills-list li {
  padding: 6px 10px;
  font-size: 0.72rem;
  font-weight: 600;
  line-height: 1.2;
  color: #3b4540;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid #d9e0dc;
  border-radius: 999px;
}

.research {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 0.72fr 1.6fr;
  gap: 34px;
  padding-top: 30px;
  border-top: 1px solid var(--color-gray-border);
}

.research-index {
  margin-bottom: 9px;
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #a1aaa5;
}

.research-heading h3 {
  margin-bottom: 7px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-black);
}

.research-heading > p:last-child {
  max-width: 340px;
  font-size: 0.77rem;
  line-height: 1.52;
  color: var(--color-text-muted);
}

.publication-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.publication-entry {
  position: relative;
  padding-left: 18px;
}

.publication-entry::before {
  content: "";
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 0;
  width: 2px;
  background: linear-gradient(var(--color-green), rgba(10, 113, 78, 0.18));
  border-radius: 2px;
}

.publication-meta {
  margin-bottom: 6px;
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  text-transform: uppercase;
  color: var(--color-green);
}

.publication-entry h4 {
  min-height: 3.9em;
  margin-bottom: 7px;
  font-size: 0.85rem;
  font-weight: 620;
  line-height: 1.46;
}

.publication-entry a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.72rem;
  font-weight: 650;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.publication-entry a:hover {
  color: var(--color-green);
}

/* Work */
.work {
  position: relative;
  overflow: hidden;
  padding: var(--space-xl) 0;
}

.work-silhouette {
  position: absolute;
  top: 7%;
  left: -190px;
  width: 390px;
  height: 390px;
  border: 1px solid rgba(10, 113, 78, 0.08);
  border-radius: 48% 52% 64% 36% / 47% 34% 66% 53%;
  transform: rotate(24deg);
  box-shadow: inset 0 0 80px rgba(10, 113, 78, 0.025);
  pointer-events: none;
}

.work-heading {
  margin-bottom: 30px;
}

.section-heading-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.section-heading-row p {
  max-width: 350px;
  padding-bottom: 5px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.project-card {
  min-width: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid var(--color-gray-border);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(27, 49, 40, 0.035);
  transition:
    box-shadow var(--transition),
    transform var(--transition),
    border-color var(--transition),
    background-color var(--transition);
}

.project-card:hover,
.project-card:focus-visible {
  background: var(--color-white);
  border-color: rgba(10, 113, 78, 0.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-5px);
}

.project-card:focus-visible {
  outline-offset: 5px;
}

.project-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  flex: 0 0 auto;
  background: var(--color-gray-bg);
}

.project-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 58%, rgba(5, 21, 15, 0.18));
  pointer-events: none;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms cubic-bezier(0.22, 1, 0.36, 1);
}

.project-card:hover .project-image img,
.project-card:focus-visible .project-image img {
  transform: scale(1.045);
}

.project-number {
  position: absolute;
  top: 13px;
  right: 13px;
  z-index: 2;
  min-width: 32px;
  padding: 5px 7px;
  text-align: center;
  font-size: 0.63rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  color: var(--color-white);
  background: rgba(12, 27, 21, 0.67);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  backdrop-filter: blur(8px);
}

.project-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 19px;
}

.project-meta {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 13px;
}

.project-company,
.modal-company {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.73rem;
  font-weight: 650;
  color: var(--color-green);
}

.project-company > span:last-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.company-logo-wrap {
  width: 26px;
  height: 26px;
  flex: 0 0 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-gray-border);
  border-radius: 7px;
}

.company-logo {
  width: 100%;
  height: 100%;
  padding: 3px;
  object-fit: contain;
}

.company-logo-fallback {
  display: none;
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-green);
}

.company-logo-wrap.is-fallback .company-logo {
  display: none;
}

.company-logo-wrap.is-fallback .company-logo-fallback {
  display: inline;
}

.project-area,
.modal-area {
  flex: 0 0 auto;
  font-size: 0.66rem;
  font-weight: 550;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.project-title {
  min-height: 2.72em;
  display: -webkit-box;
  overflow: hidden;
  font-size: 1.02rem;
  font-weight: 720;
  line-height: 1.36;
  letter-spacing: -0.017em;
  color: var(--color-black);
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.project-desc {
  min-height: 2.94em;
  margin-top: 8px;
  display: -webkit-box;
  overflow: hidden;
  font-size: 0.8rem;
  line-height: 1.47;
  color: var(--color-text-muted);
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.project-note {
  min-height: 1.5em;
  margin-top: 13px;
  padding-top: 11px;
  overflow: hidden;
  font-size: 0.66rem;
  font-weight: 620;
  line-height: 1.4;
  letter-spacing: 0.015em;
  color: #7d8781;
  border-top: 1px solid #e7ebe8;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.project-note-highlight {
  color: var(--color-green);
}

.project-link {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-weight: 680;
}

.project-link span:last-child {
  transition: transform var(--transition);
}

.project-card:hover .project-link,
.project-card:focus-visible .project-link {
  color: var(--color-green);
}

.project-card:hover .project-link span:last-child,
.project-card:focus-visible .project-link span:last-child {
  transform: translateX(4px);
}

/* Contact */
.contact {
  padding: var(--space-xl) 0 100px;
  background:
    radial-gradient(
      circle at 82% 42%,
      rgba(10, 113, 78, 0.07),
      transparent 25rem
    ),
    rgba(255, 255, 255, 0.68);
  border-top: 1px solid var(--color-gray-border);
}

.contact-content {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 76px;
  align-items: start;
}

.contact-links li {
  padding: 18px 0;
  border-bottom: 1px solid var(--color-gray-border);
}

.contact-links li:first-child {
  padding-top: 0;
}

.contact-label {
  display: block;
  margin-bottom: 3px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.contact-links a {
  font-size: 0.92rem;
  font-weight: 550;
  transition: color var(--transition);
}

.contact-links a:hover {
  color: var(--color-green);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 17px;
}

.form-demo-note {
  padding: 10px 12px;
  font-size: 0.74rem;
  line-height: 1.5;
  color: var(--color-text-muted);
  background: rgba(229, 240, 235, 0.65);
  border-left: 2px solid var(--color-green);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row label {
  font-size: 0.76rem;
  font-weight: 650;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 11px 13px;
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid #cfd7d2;
  border-radius: 10px;
  outline: none;
  transition:
    border-color var(--transition),
    box-shadow var(--transition),
    background-color var(--transition);
}

.form-row input:focus,
.form-row textarea:focus {
  background: var(--color-white);
  border-color: var(--color-green);
  box-shadow: 0 0 0 4px rgba(10, 113, 78, 0.09);
}

.form-row textarea {
  min-height: 116px;
  resize: vertical;
}

.contact-form .btn {
  align-self: flex-start;
}

.form-note {
  min-height: 1.4em;
  font-size: 0.75rem;
  color: #a04444;
}

/* Footer */
.site-footer {
  padding: 24px 0;
  color: #b9c2bd;
  background: #101713;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-size: 0.74rem;
}

.footer-top {
  color: var(--color-white);
  transition: color var(--transition);
}

.footer-top:hover {
  color: #8fc4ad;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 24px;
  visibility: hidden;
  overflow-y: auto;
  background: rgba(5, 13, 10, 0.7);
  backdrop-filter: blur(9px);
  -webkit-backdrop-filter: blur(9px);
  opacity: 0;
  transition:
    opacity 260ms ease,
    visibility 260ms ease;
}

.modal-overlay.is-open {
  visibility: visible;
  opacity: 1;
}

.modal {
  position: relative;
  width: min(100%, 800px);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  padding: clamp(28px, 5vw, 48px);
  background: #fcfdfc;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  opacity: 0;
  transform: translateY(20px) scale(0.97);
  transition:
    opacity 300ms ease,
    transform 340ms cubic-bezier(0.22, 1, 0.36, 1);
}

.modal-overlay.is-open .modal {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  padding: 0;
  font-size: 1.45rem;
  line-height: 1;
  background: var(--color-gray-bg);
  border: 1px solid var(--color-gray-border);
  border-radius: 50%;
  cursor: pointer;
  transition:
    color var(--transition),
    background-color var(--transition),
    transform var(--transition);
}

.modal-close:hover {
  color: var(--color-white);
  background: var(--color-green);
  transform: rotate(4deg);
}

.modal-header {
  padding-right: 45px;
}

.modal-meta {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 16px;
}

.modal-area {
  padding-left: 13px;
  border-left: 1px solid var(--color-gray-border);
}

.modal-header h2 {
  max-width: 650px;
  font-size: clamp(1.75rem, 4vw, 2.55rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
  color: var(--color-black);
}

.modal-accent {
  width: 52px;
  height: 3px;
  display: block;
  margin-top: 19px;
  background: linear-gradient(90deg, var(--color-green), #5cab8b);
  border-radius: 3px;
}

.modal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin-top: 30px;
  border-top: 1px solid var(--color-gray-border);
  border-left: 1px solid var(--color-gray-border);
}

.modal-item {
  min-width: 0;
  padding: 20px;
  border-right: 1px solid var(--color-gray-border);
  border-bottom: 1px solid var(--color-gray-border);
}

.modal-item-wide {
  grid-column: 1 / -1;
}

.modal-label {
  margin-bottom: 6px;
  font-size: 0.65rem;
  font-weight: 750;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-green);
}

.modal-item > p:last-child {
  font-size: 0.82rem;
  line-height: 1.58;
  color: #4e5853;
}

.modal-result {
  background: rgba(229, 240, 235, 0.47);
}

/* Responsive */
@media (max-width: 980px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.18fr) minmax(230px, 0.62fr);
    gap: 48px;
  }

  .hero-title {
    font-size: clamp(4rem, 9.2vw, 6.2rem);
  }

  .hero-media {
    width: min(100%, 276px);
  }

  .about-content {
    gap: 34px 45px;
  }

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

@media (max-width: 760px) {
  :root {
    --header-height: 68px;
  }

  .container {
    width: min(calc(100% - 36px), var(--container));
  }

  .nav {
    margin-left: 0;
  }

  .nav-list {
    position: absolute;
    top: calc(100% + 1px);
    right: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 18px 18px;
    visibility: hidden;
    background: rgba(247, 248, 246, 0.98);
    border-bottom: 1px solid var(--color-gray-border);
    box-shadow: 0 20px 30px rgba(23, 42, 34, 0.08);
    opacity: 0;
    transform: translateY(-8px);
    transition:
      opacity var(--transition),
      transform var(--transition),
      visibility var(--transition);
  }

  .nav-list.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .nav-link {
    display: block;
    padding: 11px 4px;
    font-size: 0.86rem;
  }

  .nav-link::after {
    display: none;
  }

  .header-actions {
    margin-left: auto;
  }

  .nav-toggle {
    display: block;
  }

  .hero {
    min-height: auto;
    padding: 66px 0 78px;
  }

  .hero::before {
    top: auto;
    right: -60%;
    bottom: -10%;
    width: 120vw;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-title {
    font-size: clamp(3.75rem, 17vw, 5.8rem);
  }

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

  .hero-media {
    width: min(75vw, 258px);
  }

  .hero-media-frame {
    width: 100%;
  }

  .about-content,
  .research,
  .contact-content {
    grid-template-columns: 1fr;
  }

  .research {
    gap: 25px;
  }

  .publication-list {
    gap: 18px;
  }

  .section-heading-row {
    display: block;
  }

  .section-heading-row p {
    margin-top: 12px;
    padding-bottom: 0;
  }

  .contact-content {
    gap: 48px;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .header-actions {
    gap: 6px;
  }

  .language-switch {
    width: 70px;
  }

  .language-thumb {
    width: 30px;
  }

  .language-switch[aria-checked="true"] .language-thumb {
    transform: translateX(33px);
  }

  .hero-facts {
    grid-template-columns: 1fr;
    padding: 0;
  }

  .hero-facts div,
  .hero-facts div:first-child,
  .hero-facts div:last-child {
    display: grid;
    grid-template-columns: 58px 1fr;
    align-items: center;
    padding: 10px 0;
    border-right: 0;
    border-bottom: 1px solid var(--color-gray-border);
  }

  .hero-facts div:last-child {
    border-bottom: 0;
  }

  .hero-facts dd {
    margin-top: 0;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-outline {
    flex: 1 1 calc(50% - 6px);
  }

  .hero-actions .btn-text {
    flex-basis: 100%;
    justify-content: flex-start;
  }

  .section-heading {
    margin-bottom: 32px;
  }

  .education-note {
    grid-template-columns: 1fr;
    gap: 7px;
  }

  .publication-list,
  .work-grid,
  .modal-grid {
    grid-template-columns: 1fr;
  }

  .publication-entry h4 {
    min-height: auto;
  }

  .project-title,
  .project-desc {
    min-height: auto;
  }

  .modal-overlay {
    align-items: end;
    padding: 12px;
  }

  .modal {
    max-height: calc(100vh - 24px);
    padding: 28px 20px 22px;
    border-radius: 22px;
  }

  .modal-item-wide {
    grid-column: auto;
  }

  .modal-header {
    padding-right: 34px;
  }

  .modal-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 7px;
  }

  .modal-area {
    margin-left: 34px;
    padding-left: 0;
    border-left: 0;
  }

  .modal-close {
    top: 14px;
    right: 14px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

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

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

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