:root {
  --bg: #07111f;
  --bg-soft: #0b1728;
  --card: rgba(13, 27, 47, 0.74);
  --card-solid: #0e1d31;
  --line: rgba(148, 163, 184, 0.14);
  --text: #f8fafc;
  --muted: #9fb0c6;
  --accent: #2140bd;
  --success: #37d67a;
  --danger: #ff6b6b;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --radius: 22px;
  --container: 1180px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
body.menu-open {
  overflow: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
textarea {
  font: inherit;
}
button {
  color: inherit;
}
img {
  max-width: 100%;
  display: block;
}
.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}
.section {
  position: relative;
  padding: 30px 0;
}
.page-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -3;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.5), transparent 85%);
}
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgba(7, 17, 31, 0.72);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
  transition: 0.25s ease;
}
.site-header.scrolled {
  border-color: var(--line);
}
.nav {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
}
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(33, 64, 189, 0.42);
  border-radius: 12px;
  background: rgba(33, 64, 189, 0.12);
  font-family: "JetBrains Mono", monospace;
  color: #bfe0ff;
}
.brand-name {
  font-size: 0.95rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 26px;
}
.nav-links a {
  font-size: 0.88rem;
  color: var(--muted);
  transition: 0.2s;
}
.nav-links a:hover,
.nav-links a.active {
  color: #fff;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.lang-switch,
.menu-toggle {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.035);
  border-radius: 12px;
  height: 40px;
  cursor: pointer;
}
.lang-switch {
  padding: 0 13px;
  font-size: 0.8rem;
  font-weight: 700;
}
.menu-toggle {
  display: none;
  width: 42px;
  padding: 0 10px;
}
.menu-toggle span {
  display: block;
  width: 100%;
  height: 1px;
  background: #fff;
  margin: 6px 0;
  transition: 0.25s;
}
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 70px;
  align-items: center;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border: 1px solid rgba(55, 214, 122, 0.22);
  background: rgba(55, 214, 122, 0.07);
  padding: 8px 12px;
  border-radius: 999px;
  color: #b6f6cf;
  font-size: 0.78rem;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 6px rgba(55, 214, 122, 0.08);
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  font-weight: 800;
  color: #7dbbff;
  margin: 26px 0 12px;
}
.hero h1 {
  font-size: clamp(3rem, 7vw, 6.5rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
  margin: 0;
  max-width: 900px;
}
.hero-name {
  color: #fff;
}
.hero-role {
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(1rem, 2vw, 1.35rem);
  color: #c6d4e6;
  margin: 26px 0 14px;
}
.hero-lead {
  max-width: 700px;
  font-size: 1.08rem;
  color: var(--muted);
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 13px;
  border: 1px solid transparent;
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  transition: 0.22s;
}
.btn-primary {
  background: var(--accent);
  box-shadow: 0 14px 40px rgba(33, 64, 189, 0.2);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 48px rgba(33, 64, 189, 0.3);
}
.btn-secondary {
  background: #fff;
  color: #07111f;
}
.btn-ghost {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.03);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.07);
}
.hero-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 28px;
}
.hero-stack span,
.tags span,
.project-points span {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  color: #b9c9db;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  padding: 6px 9px;
  border-radius: 9px;
}
.hero-visual {
  display: flex;
  justify-content: center;
}
.portrait-shell {
  position: relative;
  width: min(420px, 90vw);
  aspect-ratio: 0.83;
}
.portrait-shell:before {
  content: "";
  position: absolute;
  inset: 10% -8% -4% 8%;
  border-radius: 48% 48% 28% 28%;
  background: rgba(33, 64, 189, 0.16);
  filter: blur(2px);
}
.portrait-placeholder {
  position: absolute;
  inset: 0;
  border-radius: 180px 180px 36px 36px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(160deg, #11253d, #091624);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  align-content: center;
  gap: 12px;
  overflow: hidden;
}
.portrait-placeholder:after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at 50% 30%,
    rgba(33, 64, 189, 0.2),
    transparent 37%
  );
}
.portrait-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 2;
}
.portrait-placeholder span {
  font-size: 6rem;
  font-weight: 800;
  letter-spacing: -0.08em;
  color: rgba(255, 255, 255, 0.88);
  z-index: 1;
}
.section-heading {
  max-width: 760px;
  margin-bottom: 44px;
}
.section-index {
  font-family: "JetBrains Mono", monospace;
  color: #59718c;
  font-size: 0.75rem;
}
.section-heading .eyebrow {
  margin: 9px 0;
}
.section-heading h2 {
  font-size: clamp(2.25rem, 4.5vw, 4.3rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
  margin: 0;
}
.section-intro {
  color: var(--muted);
  max-width: 680px;
  margin-top: 16px;
}
.two-col {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 90px;
  align-items: start;
}
.about-copy {
  font-size: 1.08rem;
  color: #c7d3e1;
}
.about-copy p {
  margin-top: 0;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 34px;
}
.about-stats div {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  border-radius: 16px;
  padding: 18px;
}
.about-stats strong {
  display: block;
  font-size: 1.35rem;
  color: #fff;
}
.about-stats span {
  display: block;
  color: var(--muted);
  font-size: 0.76rem;
  margin-top: 5px;
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.skill-card {
  min-height: 310px;
  border: 1px solid var(--line);
  background: linear-gradient(
    160deg,
    rgba(16, 34, 56, 0.76),
    rgba(8, 19, 33, 0.65)
  );
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.01);
  transition: 0.25s;
}
.skill-card:hover {
  transform: translateY(-5px);
  border-color: rgba(33, 64, 189, 0.28);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.2);
}
.skill-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  border: 1px solid rgba(33, 64, 189, 0.2);
  background: rgba(33, 64, 189, 0.08);
  color: #83c1ff;
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
  margin-bottom: 28px;
}
.skill-card h3 {
  font-size: 1.1rem;
  margin: 0 0 8px;
}
.skill-card p {
  color: var(--muted);
  font-size: 0.9rem;
  min-height: 50px;
}
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 18px;
}
.projects-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
}
.project-card {
  position: relative;
  overflow: hidden;
  min-height: 430px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  background: linear-gradient(
    150deg,
    rgba(18, 37, 60, 0.84),
    rgba(7, 17, 31, 0.78)
  );
}
.project-card.featured {
  background: linear-gradient(
    145deg,
    rgba(24, 49, 78, 0.9),
    rgba(8, 19, 33, 0.82)
  );
}
.project-card:before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: rgba(33, 64, 189, 0.12);
  filter: blur(65px);
  right: -60px;
  top: -50px;
}
.project-number {
  font-family: "JetBrains Mono", monospace;
  color: #67809c;
  font-size: 0.76rem;
}
.project-content {
  position: relative;
  z-index: 1;
  margin-top: 82px;
}
.project-meta {
  display: flex;
  gap: 16px;
  color: #79b9fc;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.project-card h3 {
  font-size: 2rem;
  margin: 10px 0 12px;
}
.project-card p {
  color: #b9c8d8;
}
.project-points {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}
.project-result {
  margin-top: 22px;
  padding: 14px;
  border-left: 2px solid var(--accent);
  background: rgba(33, 64, 189, 0.05);
  color: #c7d6e6;
  font-size: 0.84rem;
}
.project-actions {
  display: flex;
  gap: 18px;
  margin-top: 24px;
}
.project-actions a {
  color: #a9d4ff;
  font-weight: 700;
  font-size: 0.88rem;
}
.timeline {
  border-top: 1px solid var(--line);
}
.timeline-item {
  border-bottom: 1px solid var(--line);
}
.timeline-head {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  padding: 26px 0;
  border: 0;
  background: none;
  cursor: pointer;
}
.timeline-head h3 {
  margin: 5px 0 2px;
  font-size: 1.25rem;
}
.timeline-head p {
  margin: 0;
  color: var(--muted);
}
.timeline-date {
  font-family: "JetBrains Mono", monospace;
  color: #76b8fa;
  font-size: 0.72rem;
}
.toggle-icon {
  font-size: 1.5rem;
  color: #8db9e8;
}
.timeline-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}
.timeline-body > * {
  overflow: hidden;
}
.timeline-body.open {
  grid-template-rows: 1fr;
}
.timeline-body ul {
  margin: 0 0 8px;
  padding: 0 0 20px 22px;
  color: #b9c9d9;
}
.timeline-body .tags {
  padding-bottom: 24px;
  margin-top: 0;
}
.education-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
}
.education-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.025);
}
.education-card span {
  font-family: "JetBrains Mono", monospace;
  color: #7bbdff;
  font-size: 0.74rem;
}
.education-card h3 {
  margin: 12px 0 5px;
}
.education-card p {
  margin: 0;
  color: var(--muted);
}
.contact-section {
  padding-bottom: 130px;
}
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
}
.contact-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 28px;
}
.contact-links a {
  color: #b9d9fb;
}
.contact-form {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  padding: 26px;
  border-radius: var(--radius);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.contact-form label {
  display: block;
  margin-bottom: 14px;
  color: #c3d0dd;
  font-size: 0.82rem;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  margin-top: 7px;
  border: 1px solid var(--line);
  background: #091522;
  color: #fff;
  border-radius: 12px;
  padding: 13px 14px;
  outline: none;
  transition: 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: rgba(33, 64, 189, 0.5);
  box-shadow: 0 0 0 3px rgba(33, 64, 189, 0.08);
}
.contact-form textarea {
  resize: vertical;
}
.honeypot {
  position: absolute !important;
  left: -9999px !important;
}
.form-status {
  min-height: 24px;
  font-size: 0.82rem;
}
.form-status.success {
  color: #83e7ad;
}
.form-status.error {
  color: #ff9c9c;
}
.footer {
  border-top: 1px solid var(--line);
  padding: 30px 0;
  color: var(--muted);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  font-size: 0.78rem;
}
.footer strong {
  display: block;
  color: #fff;
}
.footer span {
  display: block;
}

.hero-values-line {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-values-line span {
  position: relative;
  padding: 9px 16px;

  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;

  background: rgba(255, 255, 255, 0.035);

  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;

  color: rgba(255, 255, 255, 0.78);

  transition:
    color 0.25s ease,
    border-color 0.25s ease,
    background 0.25s ease,
    transform 0.25s ease;
}

.hero-values-line span::before {
  content: "";
  display: inline-block;

  width: 6px;
  height: 6px;
  margin-right: 9px;

  border-radius: 50%;
  background: currentColor;

  opacity: 0.55;
}

.hero-values-line span:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-2px);
}
@media (max-width: 768px) {
  .hero-values-line {
    gap: 8px;
  }

  .hero-values-line span {
    padding: 8px 12px;
    font-size: 0.85rem;
  }
}