:root {
  color-scheme: light;
  --page: #f4f7fb;
  --page-alt: #eaf0f8;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-solid: #ffffff;
  --surface-soft: #f8fafc;
  --surface-strong: #e9eef7;
  --ink: #102033;
  --ink-soft: #526277;
  --ink-faint: #78879a;
  --line: rgba(23, 43, 77, 0.12);
  --line-strong: rgba(23, 43, 77, 0.2);
  --primary: #355cfa;
  --primary-strong: #2144d4;
  --primary-soft: #e8edff;
  --accent: #008f91;
  --accent-soft: #ddf7f5;
  --gold: #b26c12;
  --gold-soft: #fff0d4;
  --shadow-sm: 0 12px 30px rgba(29, 50, 85, 0.08);
  --shadow-md: 0 24px 60px rgba(29, 50, 85, 0.14);
  --shadow-lg: 0 36px 100px rgba(29, 50, 85, 0.2);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 30px;
  --header-height: 76px;
  --content-width: 1480px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --page: #07111e;
  --page-alt: #0b1727;
  --surface: rgba(13, 27, 45, 0.82);
  --surface-solid: #0e1c2d;
  --surface-soft: #112337;
  --surface-strong: #183049;
  --ink: #f2f7ff;
  --ink-soft: #b9c8da;
  --ink-faint: #8194aa;
  --line: rgba(177, 203, 232, 0.13);
  --line-strong: rgba(177, 203, 232, 0.24);
  --primary: #83a0ff;
  --primary-strong: #a8bcff;
  --primary-soft: rgba(78, 112, 239, 0.2);
  --accent: #66dfd2;
  --accent-soft: rgba(52, 190, 177, 0.16);
  --gold: #ffc56e;
  --gold-soft: rgba(207, 139, 40, 0.16);
  --shadow-sm: 0 12px 34px rgba(0, 0, 0, 0.24);
  --shadow-md: 0 28px 70px rgba(0, 0, 0, 0.34);
  --shadow-lg: 0 42px 120px rgba(0, 0, 0, 0.42);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
  background: var(--page);
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 15% 5%, rgba(53, 92, 250, 0.13), transparent 30rem),
    radial-gradient(circle at 95% 20%, rgba(0, 143, 145, 0.1), transparent 26rem),
    linear-gradient(180deg, var(--page) 0%, var(--page-alt) 52%, var(--page) 100%);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

::selection {
  color: #fff;
  background: var(--primary);
}

a {
  color: var(--primary-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

html[data-theme="dark"] a {
  color: var(--primary);
}

a:hover {
  text-decoration-thickness: 2px;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10000;
  transform: translateY(-160%);
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: var(--surface-solid);
  color: var(--ink);
  box-shadow: var(--shadow-md);
  transition: transform 0.2s ease;
}

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

.icon {
  width: 1.1rem;
  height: 1.1rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-fill {
  fill: currentColor;
  stroke: none;
}

.scroll-progress {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1100;
  height: 3px;
  pointer-events: none;
}

.scroll-progress > span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--primary), #a969ff);
  box-shadow: 0 0 18px rgba(53, 92, 250, 0.45);
  transition: width 80ms linear;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  transition: background-color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  background: color-mix(in srgb, var(--surface-solid) 82%, transparent);
  border-color: var(--line);
  box-shadow: 0 12px 40px rgba(22, 41, 73, 0.08);
  -webkit-backdrop-filter: blur(18px) saturate(145%);
  backdrop-filter: blur(18px) saturate(145%);
}

.header-inner {
  width: min(calc(100% - 40px), var(--content-width));
  height: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.25rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  min-width: 0;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid color-mix(in srgb, var(--primary) 35%, transparent);
  border-radius: 13px;
  overflow: hidden;
  background: linear-gradient(145deg, color-mix(in srgb, var(--primary) 18%, var(--surface-solid)), var(--surface-solid));
  color: var(--primary-strong);
  font-size: 0.86rem;
  font-weight: 850;
  letter-spacing: -0.04em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5), var(--shadow-sm);
}

.brand-mark::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  right: -10px;
  bottom: -10px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.55;
  filter: blur(2px);
}

.brand-copy {
  display: grid;
  line-height: 1.15;
}

.brand-copy strong {
  font-size: 0.98rem;
  letter-spacing: -0.015em;
}

.brand-copy small {
  margin-top: 0.2rem;
  color: var(--ink-faint);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.primary-nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.32rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-solid) 70%, transparent);
}

.primary-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 750;
  text-decoration: none;
  transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.primary-nav a:hover,
.primary-nav a.is-active {
  background: var(--primary-soft);
  color: var(--primary-strong);
  transform: translateY(-1px);
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.45rem;
}

.button,
.icon-button,
.lang-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.22s var(--ease), box-shadow 0.22s ease, background-color 0.22s ease, border-color 0.22s ease, color 0.22s ease;
}

.button:hover,
.icon-button:hover,
.lang-link:hover {
  transform: translateY(-2px);
}

.button {
  min-height: 42px;
  gap: 0.5rem;
  padding: 0.66rem 1rem;
  border-radius: 999px;
  background: var(--surface-solid);
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 800;
  box-shadow: 0 8px 18px rgba(20, 39, 70, 0.08);
}

.button:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.button-primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary), #6d5dfc);
  color: #fff;
  box-shadow: 0 15px 35px rgba(53, 92, 250, 0.28);
}

.button-primary:hover {
  color: #fff;
  box-shadow: 0 19px 44px rgba(53, 92, 250, 0.36);
}

.button-ghost {
  background: color-mix(in srgb, var(--surface-solid) 72%, transparent);
}

.icon-button,
.lang-link {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: 50%;
  background: color-mix(in srgb, var(--surface-solid) 75%, transparent);
  color: var(--ink-soft);
  box-shadow: 0 8px 18px rgba(20, 39, 70, 0.06);
}

.icon-button:hover,
.lang-link:hover {
  border-color: var(--line-strong);
  background: var(--surface-solid);
  color: var(--primary-strong);
  box-shadow: var(--shadow-sm);
}

.lang-link img {
  width: 22px;
  height: 22px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--line-strong);
}

.menu-button {
  display: none;
}

.mobile-drawer {
  position: fixed;
  inset: var(--header-height) 0 0;
  z-index: 980;
  pointer-events: none;
  visibility: hidden;
}

.mobile-drawer::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(3, 12, 24, 0.44);
  opacity: 0;
  transition: opacity 0.25s ease;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.mobile-drawer-panel {
  position: absolute;
  top: 10px;
  right: 18px;
  width: min(380px, calc(100% - 36px));
  max-height: calc(100vh - var(--header-height) - 28px);
  overflow: auto;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface-solid);
  box-shadow: var(--shadow-lg);
  transform: translateY(-16px) scale(0.97);
  opacity: 0;
  transition: transform 0.28s var(--ease), opacity 0.2s ease;
}

.mobile-drawer.is-open {
  pointer-events: auto;
  visibility: visible;
}

.mobile-drawer.is-open::before {
  opacity: 1;
}

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

.mobile-nav {
  display: grid;
  gap: 0.35rem;
}

.mobile-nav a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0.65rem 0.8rem;
  border-radius: 14px;
  color: var(--ink-soft);
  font-weight: 750;
  text-decoration: none;
}

.mobile-nav a:hover,
.mobile-nav a.is-active {
  background: var(--primary-soft);
  color: var(--primary-strong);
}

.mobile-drawer-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

main {
  display: block;
}

.hero {
  position: relative;
  min-height: 780px;
  display: grid;
  align-items: center;
  padding: calc(var(--header-height) + 70px) max(20px, calc((100vw - var(--content-width)) / 2)) 86px;
  isolation: isolate;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  z-index: -3;
  inset: 0;
  background:
    linear-gradient(rgba(53, 92, 250, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 92, 250, 0.045) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.65) 62%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, 0.65) 62%, transparent 100%);
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -2;
  width: 760px;
  height: 760px;
  top: 4%;
  right: -260px;
  border: 1px solid color-mix(in srgb, var(--primary) 16%, transparent);
  border-radius: 50%;
  box-shadow:
    0 0 0 80px color-mix(in srgb, var(--primary) 4%, transparent),
    0 0 0 170px color-mix(in srgb, var(--accent) 3%, transparent);
}

.hero-orb {
  position: absolute;
  z-index: -1;
  width: 340px;
  height: 340px;
  left: -140px;
  bottom: 4%;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, color-mix(in srgb, var(--accent) 38%, transparent), transparent 67%);
  filter: blur(5px);
  opacity: 0.6;
}

.hero-inner {
  width: min(calc(100% - 40px), var(--content-width));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, 0.82fr);
  align-items: center;
  gap: clamp(3rem, 6vw, 7rem);
}

.hero-copy {
  max-width: 820px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0 0 1.35rem;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--primary));
}

.hero h1 {
  margin: 0;
  max-width: 890px;
  font-size: clamp(4.1rem, 9vw, 8.5rem);
  font-weight: 880;
  letter-spacing: -0.075em;
  line-height: 0.82;
}

.hero h1 span {
  display: block;
  color: transparent;
  background: linear-gradient(118deg, var(--primary-strong) 10%, var(--primary) 50%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-role {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
  margin: 2rem 0 1.25rem;
  color: var(--ink);
  font-size: clamp(1.18rem, 2.2vw, 1.7rem);
  font-weight: 760;
  letter-spacing: -0.025em;
}

.hero-role .ampersand {
  color: var(--primary);
  font-weight: 500;
}

.hero-lead {
  max-width: 740px;
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.6vw, 1.22rem);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 1.2rem;
  margin: 1.65rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--ink-faint);
  font-size: 0.82rem;
  font-weight: 720;
}

.hero-meta li {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.hero-meta li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px var(--accent-soft);
}

.hero-visual {
  position: relative;
  min-height: 510px;
  display: grid;
  place-items: center;
}

.portrait-shell {
  position: relative;
  width: min(410px, 88vw);
  aspect-ratio: 0.82;
  padding: 12px;
  border: 1px solid color-mix(in srgb, var(--primary) 24%, var(--line));
  border-radius: 45% 45% 34% 34% / 34% 34% 28% 28%;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--primary) 17%, var(--surface-solid)), color-mix(in srgb, var(--accent) 8%, var(--surface-solid))),
    var(--surface-solid);
  box-shadow: var(--shadow-lg);
  transform: rotate(1.6deg);
}

.portrait-shell::before,
.portrait-shell::after {
  content: "";
  position: absolute;
  z-index: -1;
  border-radius: inherit;
  border: 1px solid color-mix(in srgb, var(--primary) 22%, transparent);
}

.portrait-shell::before {
  inset: -24px 18px 24px -18px;
  transform: rotate(-4deg);
}

.portrait-shell::after {
  inset: 18px -26px -18px 20px;
  border-color: color-mix(in srgb, var(--accent) 28%, transparent);
  transform: rotate(5deg);
}

.portrait-shell img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: calc(45% - 8px) calc(45% - 8px) calc(34% - 8px) calc(34% - 8px) / calc(34% - 8px) calc(34% - 8px) calc(28% - 8px) calc(28% - 8px);
  filter: saturate(0.88) contrast(1.03);
}

.floating-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.58rem 0.78rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-solid) 86%, transparent);
  color: var(--ink);
  font-size: 0.72rem;
  font-weight: 820;
  letter-spacing: 0.02em;
  box-shadow: var(--shadow-sm);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.floating-chip::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px var(--accent-soft);
}

.chip-one { top: 8%; left: -4%; }
.chip-two { top: 22%; right: 0; }
.chip-three { bottom: 20%; left: -11%; }
.chip-four { bottom: 7%; right: 1%; }

.focus-strip {
  position: relative;
  z-index: 3;
  width: min(calc(100% - 40px), var(--content-width));
  margin: -52px auto 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: color-mix(in srgb, var(--surface-solid) 86%, transparent);
  box-shadow: var(--shadow-md);
  -webkit-backdrop-filter: blur(20px) saturate(130%);
  backdrop-filter: blur(20px) saturate(130%);
}

.focus-card {
  position: relative;
  min-height: 150px;
  padding: 1.55rem 1.5rem;
}

.focus-card + .focus-card {
  border-left: 1px solid var(--line);
}

.focus-card::after {
  content: "";
  position: absolute;
  inset: auto 1.5rem 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  opacity: 0;
  transform: scaleX(0.4);
  transition: opacity 0.25s ease, transform 0.35s var(--ease);
}

.focus-card:hover::after {
  opacity: 0.8;
  transform: scaleX(1);
}

.focus-number {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--primary);
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.focus-number::after {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--line-strong);
}

.focus-card h2 {
  margin: 0.72rem 0 0.35rem;
  font-size: 1rem;
  line-height: 1.35;
}

.focus-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.83rem;
  line-height: 1.55;
}

.content-shell {
  width: min(calc(100% - 40px), var(--content-width));
  margin: 0 auto;
  padding: 110px 0 130px;
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  align-items: start;
  gap: clamp(2rem, 4.5vw, 5rem);
}

.profile-rail {
  position: sticky;
  top: calc(var(--header-height) + 28px);
  display: grid;
  gap: 1rem;
}

.rail-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface-solid) 85%, transparent);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.rail-card-inner {
  padding: 1.3rem;
}

.rail-kicker {
  margin: 0 0 0.75rem;
  color: var(--ink-faint);
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.contact-list {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list li,
.contact-list a {
  min-width: 0;
}

.contact-list a,
.contact-list span {
  display: flex;
  align-items: flex-start;
  gap: 0.68rem;
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.45;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.contact-list a:hover {
  color: var(--primary-strong);
}

.contact-list .icon {
  width: 1rem;
  height: 1rem;
  margin-top: 0.16rem;
  color: var(--primary);
}

.rail-details {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.55rem 0.8rem;
  margin: 1rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.77rem;
}

.rail-details dt,
.rail-details dd {
  margin: 0;
}

.rail-details dt {
  color: var(--ink-faint);
}

.rail-details dd {
  color: var(--ink);
  font-weight: 760;
  text-align: right;
}

.section-nav {
  max-height: calc(100vh - var(--header-height) - 350px);
  overflow: auto;
  padding: 0.5rem;
  scrollbar-width: thin;
}

.section-nav a {
  display: grid;
  grid-template-columns: 30px 1fr;
  align-items: center;
  min-height: 42px;
  padding: 0.45rem 0.58rem;
  border-radius: 12px;
  color: var(--ink-soft);
  font-size: 0.75rem;
  font-weight: 720;
  line-height: 1.25;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.section-nav a span:first-child {
  color: var(--ink-faint);
  font-size: 0.62rem;
  font-variant-numeric: tabular-nums;
}

.section-nav a:hover,
.section-nav a.is-active {
  background: var(--primary-soft);
  color: var(--primary-strong);
  transform: translateX(2px);
}

.section-nav a.is-active span:first-child {
  color: var(--primary);
}

.cv-content {
  min-width: 0;
  display: grid;
  gap: 1.55rem;
}

.cv-section {
  position: relative;
  min-width: 0;
  padding: clamp(1.35rem, 3vw, 2.35rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--surface-solid) 88%, transparent);
  box-shadow: var(--shadow-sm);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  overflow: hidden;
  transition: border-color 0.3s ease, transform 0.35s var(--ease), box-shadow 0.35s ease;
}

.cv-section::before {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  top: -120px;
  right: -95px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 14%, transparent), transparent 70%);
  pointer-events: none;
}

.cv-section:hover {
  border-color: color-mix(in srgb, var(--primary) 24%, var(--line));
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.section-title {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.85rem;
  margin: 0 0 1.35rem;
  color: var(--ink);
  font-size: clamp(1.25rem, 2.2vw, 1.75rem);
  font-weight: 850;
  letter-spacing: -0.035em;
  line-height: 1.1;
}

.section-title::before {
  content: attr(data-index);
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid color-mix(in srgb, var(--primary) 24%, var(--line));
  border-radius: 13px;
  background: linear-gradient(145deg, var(--primary-soft), color-mix(in srgb, var(--accent-soft) 40%, var(--surface-solid)));
  color: var(--primary-strong);
  font-size: 0.66rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.section-title::after {
  content: "";
  align-self: center;
  height: 1px;
  margin-left: 0.25rem;
  background: linear-gradient(90deg, var(--line-strong), transparent);
}

.section-body {
  position: relative;
  min-width: 0;
  color: var(--ink-soft);
}

.section-body > :first-child,
.section-body > div > :first-child {
  margin-top: 0;
}

.section-body > :last-child,
.section-body > div > :last-child {
  margin-bottom: 0;
}

.section-body p {
  margin: 0.8rem 0;
}

.section-body b,
.section-body strong,
.bold {
  color: var(--ink);
  font-weight: 780;
}

.color-accent {
  color: var(--primary-strong) !important;
}

.font-medium {
  font-size: 0.82rem;
}

.section-body ul:not(.timeline):not(.skill-tags) {
  margin: 0.7rem 0 1rem;
  padding-left: 1.2rem;
}

.section-body ul:not(.timeline):not(.skill-tags) li {
  margin: 0.3rem 0;
  padding-left: 0.15rem;
}

.section-body ul:not(.timeline):not(.skill-tags) li::marker {
  color: var(--primary);
}

.timeline {
  position: relative;
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.timeline > li {
  position: relative;
  min-width: 0;
  padding: 1.2rem 1.2rem 1.2rem 1.65rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--surface-soft) 70%, transparent), color-mix(in srgb, var(--surface-solid) 85%, transparent));
  overflow-wrap: anywhere;
}

.timeline > li::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 1.22rem;
  width: 4px;
  height: 2.4rem;
  border-radius: 0 999px 999px 0;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}

.timeline > li > .fa-li,
.vertical-line {
  display: none !important;
}

.timeline > li > .color-accent:first-of-type,
.timeline > li > span.color-accent {
  display: inline-block;
  margin-bottom: 0.25rem;
  color: var(--primary-strong) !important;
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.03em;
  text-transform: none;
}

.timeline > li > span.bold:not(.color-accent) {
  display: inline-block;
  margin: 0.1rem 0;
  color: var(--ink);
  font-size: 1.02rem;
  font-weight: 820;
  line-height: 1.35;
}

.timeline > li > span.font-medium:not(.color-accent) {
  display: inline-block;
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 700;
}

.timeline > li > div,
.timeline > li > p,
.timeline > li > details {
  margin-top: 0.8rem;
}

.role-details,
.abstract-details {
  border-top: 1px solid var(--line);
  padding-top: 0.8rem;
}

.role-details > summary,
.abstract-details > summary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-solid);
  color: var(--ink-soft);
  font-size: 0.72rem;
  font-weight: 820;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.role-details > summary::-webkit-details-marker,
.abstract-details > summary::-webkit-details-marker {
  display: none;
}

.role-details > summary::before,
.abstract-details > summary::before {
  content: "+";
  display: grid;
  place-items: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary-strong);
  font-size: 0.85rem;
  line-height: 1;
}

.role-details[open] > summary::before,
.abstract-details[open] > summary::before {
  content: "−";
}

.role-details > summary:hover,
.abstract-details > summary:hover {
  border-color: var(--line-strong);
  color: var(--primary-strong);
}

.role-details-content,
.abstract-details-content {
  padding: 0.6rem 0.15rem 0;
}

.abstract-details-content {
  color: var(--ink-soft);
  font-size: 0.88rem;
  line-height: 1.65;
}

.external-link-mark {
  display: inline-block;
  margin-left: 0.35rem;
  color: var(--primary);
  font-size: 0.78em;
  font-weight: 900;
  text-decoration: none;
  transform: translateY(-0.08em);
}

.section-publications .timeline > li > a.bold,
.section-publications .timeline > li > .bold {
  color: var(--ink);
}

.section-publications small {
  display: block;
  margin-top: 0.35rem;
  color: var(--ink-faint);
  font-size: 0.78rem;
  line-height: 1.5;
}

.section-profile .section-body {
  font-size: 1.02rem;
  line-height: 1.8;
}

.section-profile .timeline > li {
  padding: 0;
  border: 0;
  background: transparent;
}

.section-profile .timeline > li::before {
  display: none;
}

.section-profile .timeline > li > span.bold {
  display: none;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.skill-group {
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-soft);
}

.skill-group h3 {
  margin: 0 0 0.75rem;
  color: var(--ink);
  font-size: 0.82rem;
  font-weight: 850;
  letter-spacing: -0.01em;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.skill-tag,
.label {
  display: inline-flex;
  align-items: center;
  min-height: 29px;
  padding: 0.3rem 0.65rem;
  border: 1px solid color-mix(in srgb, var(--primary) 14%, var(--line));
  border-radius: 999px;
  background: var(--surface-solid);
  color: var(--ink-soft);
  font-size: 0.7rem;
  font-weight: 760;
  line-height: 1.2;
}

.section-technical-skills .timeline > li > div,
.section-education .timeline > li > div {
  margin-top: 0.7rem;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

th,
td {
  padding: 0.72rem 0.8rem;
  border-bottom: 1px solid var(--line);
  text-align: center;
  vertical-align: middle;
}

th {
  background: var(--surface-soft);
  color: var(--ink);
  font-weight: 820;
}

tr:last-child td {
  border-bottom: 0;
}

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

.section-links .timeline > li {
  padding: 0.85rem 1rem;
}

.section-links .timeline > li::before {
  top: 0.85rem;
  height: 1.8rem;
}

.section-links .timeline a {
  color: var(--ink);
  font-weight: 760;
  text-decoration: none;
}

.section-links .timeline a:hover {
  color: var(--primary-strong);
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.site-footer {
  position: relative;
  padding: 0 max(20px, calc((100vw - var(--content-width)) / 2)) 36px;
}

.footer-inner {
  width: min(calc(100% - 40px), var(--content-width));
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
  padding: 1.4rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--surface-solid) 82%, transparent);
  color: var(--ink-faint);
  font-size: 0.76rem;
  box-shadow: var(--shadow-sm);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.footer-copy strong {
  color: var(--ink);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.85rem;
}

.footer-links a {
  color: var(--ink-soft);
  font-weight: 760;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--primary-strong);
}

.noscript-note {
  width: min(calc(100% - 40px), 860px);
  margin: calc(var(--header-height) + 20px) auto 0;
  padding: 0.8rem 1rem;
  border: 1px solid #d6a233;
  border-radius: 12px;
  background: #fff8df;
  color: #5a4212;
}

@media (max-width: 1160px) {
  .primary-nav {
    display: none;
  }

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

  .header-actions {
    justify-self: end;
  }

  .menu-button {
    display: inline-flex;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(330px, 0.72fr);
    gap: 3rem;
  }

  .content-shell {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 940px) {
  :root {
    --header-height: 70px;
  }

  .header-inner {
    width: min(calc(100% - 28px), var(--content-width));
  }

  .header-actions .header-pdf {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 62px);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-copy {
    margin: 0 auto;
  }

  .eyebrow,
  .hero-role,
  .hero-actions,
  .hero-meta {
    justify-content: center;
  }

  .hero-visual {
    min-height: 440px;
  }

  .portrait-shell {
    width: min(350px, 78vw);
  }

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

  .focus-card:nth-child(3) {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .focus-card:nth-child(4) {
    border-top: 1px solid var(--line);
  }

  .content-shell {
    grid-template-columns: 1fr;
    padding-top: 80px;
  }

  .profile-rail {
    position: static;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .section-nav {
    max-height: 320px;
  }
}

@media (max-width: 680px) {
  body {
    font-size: 15px;
  }

  .brand-copy small {
    display: none;
  }

  .header-actions {
    gap: 0.28rem;
  }

  .header-actions .theme-button {
    display: none;
  }

  .icon-button,
  .lang-link {
    width: 39px;
    height: 39px;
  }

  .hero {
    padding-right: 14px;
    padding-left: 14px;
    padding-bottom: 70px;
  }

  .hero-inner {
    width: min(calc(100% - 8px), var(--content-width));
  }

  .hero h1 {
    font-size: clamp(3.5rem, 19vw, 5.6rem);
  }

  .hero-role {
    display: block;
    font-size: 1.12rem;
  }

  .hero-role .ampersand {
    display: inline-block;
    margin: 0 0.25rem;
  }

  .hero-lead {
    font-size: 0.98rem;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero-actions .button {
    width: 100%;
  }

  .hero-meta {
    display: grid;
    gap: 0.6rem;
  }

  .hero-visual {
    min-height: 390px;
    margin-top: 0.5rem;
  }

  .portrait-shell {
    width: min(300px, 78vw);
  }

  .floating-chip {
    font-size: 0.64rem;
    padding: 0.5rem 0.65rem;
  }

  .chip-one { left: 0; }
  .chip-two { right: -2%; }
  .chip-three { left: -2%; }
  .chip-four { right: 2%; }

  .focus-strip {
    width: calc(100% - 28px);
    margin-top: -30px;
    grid-template-columns: 1fr;
    border-radius: 22px;
  }

  .focus-card {
    min-height: 0;
    padding: 1.25rem;
  }

  .focus-card + .focus-card,
  .focus-card:nth-child(3),
  .focus-card:nth-child(4) {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .content-shell {
    width: calc(100% - 28px);
    padding: 64px 0 90px;
  }

  .profile-rail {
    grid-template-columns: 1fr;
  }

  .section-nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-height: none;
  }

  .section-nav a {
    grid-template-columns: 24px 1fr;
  }

  .cv-section {
    padding: 1.2rem;
    border-radius: 22px;
  }

  .cv-section:hover {
    transform: none;
  }

  .section-title {
    grid-template-columns: auto 1fr;
    font-size: 1.2rem;
  }

  .section-title::after {
    display: none;
  }

  .section-title::before {
    width: 38px;
    height: 38px;
  }

  .timeline > li {
    padding: 1rem 0.95rem 1rem 1.35rem;
    border-radius: 15px;
  }

  .skills-grid,
  .section-links .timeline {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    width: calc(100% - 28px);
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-links {
    justify-content: center;
  }
}

@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;
  }
}

@media print {
  @page {
    size: A4;
    margin: 14mm 13mm 16mm;
  }

  :root {
    --ink: #172033;
    --ink-soft: #3f4d61;
    --ink-faint: #657286;
    --primary: #294ccf;
    --primary-strong: #1f3ea9;
    --line: #d7deea;
    --surface-solid: #fff;
    --surface-soft: #f7f9fc;
  }

  html,
  body {
    background: #fff !important;
  }

  body {
    color: var(--ink);
    font-size: 9.5pt;
    line-height: 1.42;
  }

  .site-header,
  .mobile-drawer,
  .scroll-progress,
  .focus-strip,
  .profile-rail,
  .site-footer,
  .hero-orb,
  .floating-chip,
  .hero-actions {
    display: none !important;
  }

  .hero {
    min-height: auto;
    padding: 0 0 7mm;
    overflow: visible;
  }

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

  .hero-inner {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 30mm;
    gap: 8mm;
    align-items: start;
    text-align: left;
  }

  .hero h1 {
    font-size: 30pt;
    line-height: 0.9;
  }

  .hero h1 span {
    color: var(--primary-strong);
    background: none;
    -webkit-text-fill-color: initial;
  }

  .eyebrow {
    margin-bottom: 3mm;
    font-size: 7pt;
  }

  .hero-role {
    justify-content: flex-start;
    margin: 4mm 0 2mm;
    font-size: 12pt;
  }

  .hero-lead {
    font-size: 9pt;
    line-height: 1.45;
  }

  .hero-meta {
    justify-content: flex-start;
    margin-top: 3mm;
    font-size: 7.5pt;
  }

  .hero-visual {
    min-height: 0;
  }

  .portrait-shell {
    width: 30mm;
    height: 38mm;
    padding: 1mm;
    border-radius: 10mm;
    box-shadow: none;
    transform: none;
  }

  .portrait-shell::before,
  .portrait-shell::after {
    display: none;
  }

  .content-shell {
    width: 100%;
    display: block;
    padding: 0;
  }

  .cv-content {
    display: block;
  }

  .cv-section {
    margin: 0 0 5mm;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: #fff;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    overflow: visible;
    break-inside: auto;
  }

  .cv-section::before {
    display: none;
  }

  .cv-section:hover {
    transform: none;
    box-shadow: none;
  }

  .section-title {
    margin: 0 0 2.5mm;
    padding-bottom: 1.5mm;
    border-bottom: 1px solid #b9c5d8;
    font-size: 13pt;
    break-after: avoid;
  }

  .section-title::before {
    width: 8mm;
    height: 8mm;
    border-radius: 2mm;
    font-size: 6pt;
    box-shadow: none;
  }

  .section-body {
    color: var(--ink-soft);
  }

  .timeline {
    gap: 2mm;
  }

  .timeline > li {
    padding: 2.4mm 2.8mm 2.4mm 4mm;
    border-color: #d8dfeb;
    border-radius: 3mm;
    background: #fbfcfe;
    break-inside: avoid;
  }

  .timeline > li::before {
    top: 2.8mm;
    height: 8mm;
    width: 1mm;
  }

  .timeline > li > span.bold:not(.color-accent) {
    font-size: 9.5pt;
  }

  .timeline > li > .color-accent:first-of-type,
  .timeline > li > span.color-accent {
    font-size: 7pt;
  }

  .role-details,
  .abstract-details {
    border-top: 0;
    padding-top: 0;
  }

  .role-details > summary,
  .abstract-details > summary {
    display: none !important;
  }

  .role-details > .role-details-content,
  .abstract-details > .abstract-details-content {
    display: block !important;
    padding-top: 1mm;
  }

  .abstract-details-content {
    display: none !important;
  }

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

  .skill-group {
    padding: 2.5mm;
    border-radius: 3mm;
    break-inside: avoid;
  }

  .skill-tag,
  .label {
    min-height: 0;
    padding: 0.8mm 2mm;
    font-size: 6.8pt;
  }

  .section-profile .section-body {
    font-size: 9pt;
    line-height: 1.48;
  }

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

  a {
    color: var(--primary-strong) !important;
    text-decoration: none;
  }

  .reveal,
  .reveal.is-visible {
    opacity: 1;
    transform: none;
  }
}

.theme-icon-sun,
.menu-icon-close {
  display: none;
}

html[data-theme="dark"] .theme-icon-moon {
  display: none;
}

html[data-theme="dark"] .theme-icon-sun,
body.menu-open .menu-icon-close {
  display: block;
}

body.menu-open .menu-icon-open {
  display: none;
}

.rail-kicker-spaced {
  margin-top: 1.15rem;
}

.rail-card-inner-compact {
  padding-bottom: 0.55rem;
}

/* Preserve button contrast when the global dark-theme link color is active. */
html[data-theme="dark"] a.button {
  color: var(--ink);
}

html[data-theme="dark"] a.button-primary,
html[data-theme="dark"] a.button-primary:hover {
  color: #ffffff;
}

.error-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.error-shell {
  width: min(100%, 760px);
  padding: clamp(2rem, 6vw, 4.5rem);
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
}

.error-brand {
  width: max-content;
  margin: 0 auto 2.5rem;
  text-align: left;
}

.error-code {
  margin: 0;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.25em;
}

.error-shell h1 {
  margin: 0.65rem 0 1rem;
  font-size: clamp(2.5rem, 9vw, 5.3rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.error-shell > p:not(.error-code) {
  max-width: 520px;
  margin: 0 auto;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 2rem;
}