:root {
  --bg: #f3f4f6;
  --bg-elevated: #ffffff;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --accent-alt: #0f766e;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --radius-xl: 22px;
  --radius: 14px;
  --transition: 0.22s ease;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont,
    "SF Pro Text","SF Pro Display","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --fs-body: 15px;
  --lh-body: 1.7;
  --shadow-soft: 0 14px 40px rgba(15, 23, 42, 0.06);
  --shadow-soft-hover: 0 18px 55px rgba(15, 23, 42, 0.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background:
    radial-gradient(circle at top, #e5edff 0, var(--bg) 40%, #e5e7eb 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition:
    color var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

a:hover {
  color: #1d4ed8;
}

.page {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 20px 40px;
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: rgba(249, 250, 251, 0.96);
  border-bottom: 1px solid rgba(209, 213, 219, 0.9);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 10px 20px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-brand-title {
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.nav-brand-sub {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 8px;
  font-size: 11px;
  color: var(--muted);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-links a {
  padding: 6px 11px;
  border-radius: 999px;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-links a span.dot {
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--accent);
}

.nav-links a:hover {
  border-color: var(--accent-soft);
  background: #eff6ff;
  color: var(--accent);
}

.nav-links a.nav-cta {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 500;
}

/* Hamburger */
.hamburger {
  display: none;
  width: 26px;
  height: 20px;
  padding: 0;
  border: none;
  background: transparent;
  flex-direction: column;
  justify-content: space-between;
  cursor: pointer;
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: #111827;
  border-radius: 999px;
  transition: transform var(--transition), opacity var(--transition), background-color var(--transition);
}

.hamburger.is-open span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.hamburger.is-open span:nth-child(2) {
  opacity: 0;
}

.hamburger.is-open span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* HERO */
.hero {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 22px;
  padding: 26px 0 6px;
  align-items: stretch;
}

.hero-main {
  padding: 20px 20px 18px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.06), transparent),
    radial-gradient(circle at top, rgba(79, 70, 229, 0.04), transparent),
    var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #eff6ff;
  border: 1px solid #dbeafe;
  font-size: 10px;
  color: #1d4ed8;
  margin-bottom: 8px;
}

.hero-label span.tag {
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 9px;
  background: #1d4ed8;
  color: #ffffff;
}

.hero h1 {
  font-size: 28px;
  margin: 2px 0 8px;
  color: var(--text);
  letter-spacing: 0.01em;
  font-weight: 600;
}

.hero-sub {
  font-size: 14px;
  color: var(--muted);
  margin: 0 0 14px;
  max-width: 95%;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 14px;
}

.pill {
  padding: 4px 10px;
  font-size: 10px;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  color: #4b5563;
  background: #f9fafb;
  white-space: nowrap;
}

.pill.accent {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
  font-weight: 500;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 2px;
  font-size: 11px;
}

.hero-links a {
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid #e5e7eb;
  background: #f9fafb;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  max-width: 100%;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.hero-links a span.icon {
  width: 5px;
  height: 5px;
  border-radius: 999px;
  background: var(--accent);
}

.hero-links a:hover {
  border-color: var(--accent);
  background: #eff6ff;
  color: var(--accent);
  box-shadow: var(--shadow-soft);
}

.hero-side {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card {
  padding: 11px 11px 10px;
  border-radius: var(--radius);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  font-size: 12px;
  color: var(--muted);
}

.card h2 {
  font-size: 11px;
  margin: 0 0 4px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.card ul {
  list-style: none;
  padding: 0;
  margin: 4px 0 0;
  display: grid;
  gap: 4px;
}

.card li {
  display: flex;
  align-items: flex-start;
  gap: 6px;
}

.card li span.bullet {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--accent-alt);
  margin-top: 6px;
  flex-shrink: 0;
}

/* GENERIC BLOCK */
section.block {
  margin-top: 24px;
  padding: 16px 14px 14px;
  border-radius: var(--radius-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.block-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 8px;
  margin-bottom: 10px;
}

.block-title {
  font-size: 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.block-sub {
  font-size: 10px;
  color: var(--muted);
}

/* EXPERIENCE GRID */
.exp-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  font-size: 12px;
  color: var(--muted);
}

.exp-item {
  padding: 9px 9px 8px;
  border-radius: var(--radius);
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.exp-role {
  font-size: 12px;
  color: var(--text);
  font-weight: 600;
}

.exp-meta {
  font-size: 10px;
  color: var(--muted);
}

.exp-bullets {
  list-style: none;
  padding: 0;
  margin: 4px 0 0;
  display: grid;
  gap: 2px;
  font-size: 11px;
  line-height: 1.6;
}

/* PROJECTS */
.proj-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
  font-size: 11px;
}

.proj {
  padding: 8px;
  border-radius: var(--radius);
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.proj-label {
  font-size: 8.5px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.10em;
}

.proj-title {
  font-size: 11.4px;
  color: var(--text);
  font-weight: 600;
}

.proj p {
  margin: 2px 0;
  color: var(--muted);
  font-size: 10.4px;
}

.proj a {
  margin-top: 2px;
  font-size: 10px;
  word-break: break-all;
}

.proj:hover {
  box-shadow: var(--shadow-soft-hover);
  transform: translateY(-1px);
  border-color: var(--accent-soft);
}

/* ARTICLES */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 9px;
  margin-top: 4px;
  font-size: 11px;
}

.article-card {
  padding: 8px;
  border-radius: var(--radius);
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
}

.article-label {
  font-size: 8.6px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--accent);
}

.article-title {
  font-size: 11.4px;
  color: var(--text);
  font-weight: 600;
  line-height: 1.4;
}

.article-desc {
  font-size: 10.2px;
  color: var(--muted);
  margin: 0;
}

.article-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-soft-hover);
  transform: translateY(-2px);
  background: #eff6ff;
  color: var(--accent);
}

/* SKILLS */
.skill-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  font-size: 10.4px;
  color: var(--muted);
  margin-top: 4px;
}

.skill-pill {
  padding: 4px 9px;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  background: #f9fafb;
}

.skill-pill:hover {
  border-color: var(--accent-soft);
  box-shadow: var(--shadow-soft);
}

/* CONTACT */
.contact-grid {
  display: grid;
  grid-template-columns: 2fr 1.5fr;
  gap: 16px;
  font-size: 11.4px;
  color: var(--muted);
  margin-top: 4px;
}

.contact-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 6px;
}

.contact-item {
  margin: 0 0 5px;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .nav-inner {
    padding: 10px 16px 8px;
  }

  .nav-brand-sub {
    white-space: normal;
  }

  .hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    padding: 8px 16px 10px;
    background: rgba(249, 250, 251, 0.98);
    border-bottom: 1px solid rgba(209, 213, 219, 0.9);
    flex-direction: column;
    gap: 6px;
    align-items: flex-start;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    justify-content: flex-start;
  }

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

  .hero-main {
    order: 1;
  }

  .hero-side {
    order: 2;
  }

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

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

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

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

@media (max-width: 600px) {
  .page {
    padding: 18px 14px 26px;
  }

  .hero h1 {
    font-size: 24px;
  }

  .hero-sub {
    max-width: 100%;
    font-size: 13px;
  }

  .proj-grid,
  .articles-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}