*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --li-blue: #0a66c2; --li-blue-hover: #004182; --li-bg: #f3f2ef;
  --li-white: #ffffff; --li-border: #e0ddd8; --li-text: #191919;
  --li-muted: #666666; --li-light: #f9f9f9; --li-green: #057642;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08); --radius: 8px;
}
html { scroll-behavior: smooth; }
body { font-family: 'IBM Plex Sans', sans-serif; background: var(--li-bg); color: var(--li-text); font-size: 14px; line-height: 1.5; }
a { color: var(--li-blue); text-decoration: none; }
a:hover { text-decoration: underline; color: var(--li-blue-hover); }

/* NAV */
/* Hamburger button — hidden on desktop */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--li-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}
/* Hamburger animation when open */
.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.topnav { background: var(--li-white); border-bottom: 1px solid var(--li-border); position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow-sm); }
.topnav-inner { max-width: 1128px; margin: 0 auto; padding: 0 24px; height: 56px; display: flex; align-items: center; gap: 12px; }
.nav-brand { display: flex; align-items: center; gap: 10px; cursor: pointer; flex-shrink: 0; text-decoration: none; }
.nav-brand:hover { text-decoration: none; }
.nav-logo { height: 40px; width: auto; display: block; }
.nav-brand-name { font-family: 'Source Serif 4', serif; font-size: 18px; font-weight: 600; color: var(--li-text); white-space: nowrap; }
.nav-spacer { flex: 1; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link { display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 8px 14px; color: var(--li-muted); border-radius: 4px; font-size: 12px; font-weight: 500; text-decoration: none; transition: color 0.2s; white-space: nowrap; cursor: pointer; border: none; background: none; font-family: 'IBM Plex Sans', sans-serif; }
.nav-link:hover { color: var(--li-text); text-decoration: none; background: var(--li-light); }
.nav-link svg { width: 20px; height: 20px; }

/* LAYOUT */
.page { max-width: 1128px; margin: 24px auto; padding: 0 24px; display: grid; grid-template-columns: 1fr 360px; gap: 24px; align-items: start; }
.card { background: var(--li-white); border: 1px solid var(--li-border); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; margin-bottom: 8px; }
.scroll-target { scroll-margin-top: 68px; }

/* PROFILE CARD */
.profile-avatar-wrap { padding: 24px 24px 12px; display: flex; align-items: flex-start; }
.profile-avatar { width: 120px; height: 120px; border-radius: 50%; border: 3px solid var(--li-white); overflow: hidden; flex-shrink: 0; box-shadow: 0 0 0 2px var(--li-border); }
.profile-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.profile-info { padding: 0 24px 16px; }
.profile-name { font-family: 'Source Serif 4', serif; font-size: 24px; font-weight: 600; line-height: 1.25; margin-bottom: 4px; }
.profile-headline { font-size: 14px; margin-bottom: 8px; line-height: 1.4; }
.profile-location { font-size: 13px; color: var(--li-muted); margin-bottom: 6px; }
.profile-location span { color: var(--li-blue); font-weight: 500; cursor: pointer; }

/* ARTICLES */
.articles-section { padding: 12px 24px 16px; border-top: 1px solid var(--li-border); }
.articles-title { font-size: 13px; font-weight: 600; margin-bottom: 12px; }
.article-link-item { display: flex; align-items: flex-start; gap: 12px; padding: 10px 0; border-top: 1px solid var(--li-border); text-decoration: none; }
.article-link-item:first-of-type { border-top: none; }
.article-link-item:hover .article-link-title { color: var(--li-blue); text-decoration: underline; }
.article-thumb { width: 64px; height: 48px; background: linear-gradient(135deg, #e8f0fa, #dce6f1); border-radius: 4px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 22px; border: 1px solid var(--li-border); }
.article-link-title { font-size: 14px; font-weight: 600; color: var(--li-text); line-height: 1.4; margin-bottom: 2px; }
.article-link-meta { font-size: 12px; color: var(--li-muted); }

/* SECTIONS */
.section-header { padding: 16px 24px 0; display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.section-title-li { font-family: 'Source Serif 4', serif; font-size: 20px; font-weight: 600; }
.section-edit { color: var(--li-muted); cursor: pointer; font-size: 20px; }
.about-text { padding: 0 24px 20px; font-size: 14px; line-height: 1.65; }
.about-text p + p { margin-top: 10px; }

/* EXPERIENCE */
.exp-list { padding: 0 24px 16px; }
.exp-entry { display: flex; gap: 14px; padding: 14px 0; }
.exp-entry + .exp-entry { border-top: 1px solid var(--li-border); }
.exp-logo { width: 48px; height: 48px; border: 1px solid var(--li-border); border-radius: 4px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; background: var(--li-light); font-size: 20px; overflow: hidden; }
.exp-logo img { width: 100%; height: 100%; object-fit: contain; padding: 4px; }
.exp-role-title { font-size: 15px; font-weight: 600; margin-bottom: 2px; }
.exp-company-name { font-size: 14px; margin-bottom: 2px; }
.exp-meta { font-size: 13px; color: var(--li-muted); margin-bottom: 8px; }
.exp-description { font-size: 14px; line-height: 1.6; }
.exp-description ul { list-style: disc; padding-left: 18px; margin-top: 6px; }
.exp-description li { margin-bottom: 4px; }

/* SKILLS */
.skills-list { padding: 0 24px 20px; }
.skill-item { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; border-top: 1px solid var(--li-border); }
.skill-item:first-child { border-top: none; }
.skill-name { font-size: 14px; font-weight: 500; }
.skill-badge { font-size: 12px; color: var(--li-muted); }

/* EDUCATION / CERTS */
.edu-list, .cert-list { padding: 0 24px 16px; }
.edu-entry, .cert-entry { display: flex; gap: 14px; padding: 14px 0; }
.edu-entry + .edu-entry, .cert-entry + .cert-entry { border-top: 1px solid var(--li-border); }
.edu-logo, .cert-icon-li { width: 48px; height: 48px; border: 1px solid var(--li-border); border-radius: 4px; flex-shrink: 0; background: var(--li-light); display: flex; align-items: center; justify-content: center; font-size: 22px; }
.edu-school-name, .cert-name-li { font-size: 15px; font-weight: 600; margin-bottom: 2px; }
.edu-degree-name { font-size: 14px; margin-bottom: 2px; }
.edu-years, .cert-issuer { font-size: 13px; color: var(--li-muted); }
.cert-name-li a:hover { text-decoration: underline !important; color: var(--li-blue) !important; }
.honors-item { padding: 12px 24px 20px; display: flex; gap: 14px; }
.honors-icon { font-size: 24px; flex-shrink: 0; }
.honors-title { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.honors-sub { font-size: 13px; color: var(--li-muted); }

/* SIDEBAR */
.sidebar { display: flex; flex-direction: column; gap: 8px; }
.sidebar-card { padding: 16px 20px; }
.sidebar-section-title { font-size: 15px; font-weight: 600; margin-bottom: 14px; }

/* PORTFOLIO */
.portfolio-item { display: flex; align-items: center; gap: 10px; padding: 9px 0; border-top: 1px solid var(--li-border); text-decoration: none; color: var(--li-text); transition: color 0.2s; }
.portfolio-item:first-of-type { border-top: none; }
.portfolio-item:hover { color: var(--li-blue); text-decoration: none; }
.portfolio-item:hover .portfolio-name { text-decoration: underline; }
.portfolio-icon { width: 36px; height: 36px; background: linear-gradient(135deg, #e8f0fa, #dce6f1); border: 1px solid var(--li-border); border-radius: 6px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.portfolio-name { font-size: 14px; font-weight: 500; line-height: 1.3; }
.portfolio-arrow { margin-left: auto; color: var(--li-muted); font-size: 14px; flex-shrink: 0; }

/* FOOTER */
.li-footer { max-width: 1128px; margin: 16px auto 32px; padding: 0 24px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 16px; font-size: 12px; color: var(--li-muted); }
.footer-links a { color: var(--li-muted); }
.footer-links a:hover { color: var(--li-blue); }
.footer-copy { font-size: 12px; color: var(--li-muted); margin-top: 8px; }

/* MOBILE RESPONSIVE */
@media (max-width: 768px) {
  .page { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  
  /* Mobile Navigation */
  .nav-toggle {
    display: flex;
  }
  
  .nav-links {
    display: none !important;
    flex-direction: column;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--li-white);
    border-top: 1px solid var(--li-border);
    padding: 12px 0;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    z-index: 99;
  }
  
  .nav-links.open {
    display: flex !important;
  }
  
  .nav-links .nav-link {
    flex-direction: row;
    justify-content: flex-start;
    padding: 12px 24px;
    gap: 10px;
  }
  
  .topnav-inner {
    position: relative;
  }
}
.modal-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.55); z-index:1000; align-items:center; justify-content:center; }
.modal-overlay.open { display:flex; }
.modal-box { background:#fff; border-radius:10px; max-width:520px; width:90%; padding:36px 32px 28px; position:relative; box-shadow:0 8px 32px rgba(0,0,0,0.18); }
.modal-close { position:absolute; top:14px; right:18px; background:none; border:none; font-size:20px; cursor:pointer; color:#999; line-height:1; }
.modal-close:hover { color:#333; }
.modal-title { font-size:18px; font-weight:700; color:var(--li-dark); margin-bottom:16px; }
.modal-body { font-size:14px; color:#444; line-height:1.7; }
.modal-body p { margin-bottom:12px; }
.modal-body a { color:var(--li-blue); }