:root {
  --bg: #f4f7fb;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: #ffffff;
  --text: #122033;
  --muted: #5a6b82;
  --line: rgba(18, 32, 51, 0.1);
  --accent: #1c5fd4;
  --accent-dark: #0f3f97;
  --accent-soft: #d9e7ff;
  --shadow: 0 18px 48px rgba(15, 23, 42, 0.12);
  --radius: 24px;
  --radius-sm: 16px;
  --max: 1140px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Aptos", "Helvetica Neue", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(28, 95, 212, 0.14), transparent 36%),
    radial-gradient(circle at 85% 12%, rgba(76, 155, 255, 0.16), transparent 24%),
    linear-gradient(180deg, #eef4ff 0%, #f6f8fc 42%, #eef2f8 100%);
  min-height: 100vh;
}

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

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

p {
  margin: 0;
}

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

.container {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
}

.narrow {
  width: min(calc(100% - 2rem), 840px);
}

.section {
  padding: 5rem 0;
}

.section-muted {
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(12px);
}

.section-accent {
  padding-top: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(244, 247, 251, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

.header-inner,
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 5rem;
}

.brand {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  color: var(--muted);
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent);
}

.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  padding: 0.5rem 0.75rem;
}

.hero-grid,
.about-grid,
.projects-grid {
  display: grid;
  gap: 1.5rem;
}

.hero-grid {
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  align-items: center;
  min-height: calc(100vh - 5rem);
}

.eyebrow {
  margin-bottom: 0.85rem;
  color: var(--accent-dark);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.05;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 5.2rem);
  max-width: 11ch;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: 1.2rem;
}

.lead,
.section-heading p,
.info-card p,
.project-card p,
.cv-section p {
  color: var(--muted);
  line-height: 1.7;
}

.hero-copy {
  display: grid;
  gap: 1.4rem;
}

.hero-actions,
.banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  padding: 0.85rem 1.3rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.button-primary {
  background: linear-gradient(135deg, var(--accent), #4c9bff);
  color: #fff;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.6);
  border-color: var(--line);
}

.hero-highlights {
  display: grid;
  gap: 0.65rem;
  color: var(--muted);
}

.hero-highlights li {
  position: relative;
  padding-left: 1.2rem;
}

.hero-highlights li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65rem;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--accent);
}

.portrait-card,
.info-card,
.project-card,
.cv-banner,
.cv-section,
.page-intro {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.portrait-card {
  position: relative;
  overflow: hidden;
  padding: 1rem;
}

.portrait-card img {
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: calc(var(--radius) - 8px);
}

.portrait-overlay {
  position: absolute;
  left: 1.5rem;
  right: 1.5rem;
  bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border-radius: 18px;
  background: rgba(15, 23, 42, 0.7);
  color: #e8eefb;
}

.section-heading {
  display: grid;
  gap: 0.8rem;
  max-width: 720px;
  margin-bottom: 2rem;
}

.about-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-card,
.project-card,
.cv-section {
  padding: 1.5rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.tag-list li {
  padding: 0.6rem 0.9rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 600;
}

.projects-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-meta {
  margin-bottom: 0.85rem;
  color: var(--accent-dark);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-card {
  display: grid;
  gap: 1rem;
}

.project-list {
  display: grid;
  gap: 0.55rem;
  color: var(--muted);
}

.cv-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2rem;
}

.page-body .section {
  padding-top: 3rem;
}

.page-intro {
  display: grid;
  gap: 1rem;
  padding: 2rem;
  margin-bottom: 1.5rem;
}

.timeline {
  display: grid;
  gap: 1rem;
}

.timeline-item {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.timeline-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.timeline-date {
  color: var(--accent-dark);
  font-weight: 700;
}

.site-footer {
  padding: 1rem 0 2rem;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: rise 0.7s ease forwards;
}

.reveal:nth-child(2) {
  animation-delay: 0.1s;
}

.reveal:nth-child(3) {
  animation-delay: 0.18s;
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .hero-grid,
  .about-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .cv-banner {
    flex-direction: column;
    align-items: flex-start;
  }

  .timeline-item {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    position: static;
  }

  .header-inner {
    flex-wrap: wrap;
    min-height: auto;
    padding: 1rem 0;
  }

  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 0.75rem;
  }

  .site-nav.is-open,
  .site-nav.is-static {
    display: flex;
  }
  .hero-grid {
    min-height: auto;
    padding-top: 2rem;
  }

  .section,
  .page-body .section {
    padding: 3.5rem 0;
  }

  .portrait-overlay {
    position: static;
    margin-top: 1rem;
    background: rgba(15, 23, 42, 0.92);
  }
}

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

  .reveal,
  .button {
    animation: none;
    transition: none;
    opacity: 1;
    transform: none;
  }
}