@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg: #0B0B0B;
  --bg-raised: #111111;
  --bg-card: #141414;
  --border: #1E1E1E;
  --border-subtle: #181818;
  --text-primary: #EAEAEA;
  --text-secondary: #B0B0B0;
  --text-muted: #707070;
  --accent: #4F8CFF;
  --accent-dim: rgba(79, 140, 255, 0.10);
  --accent-hover: #6BA3FF;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 8px;
  --radius-lg: 14px;
  --transition: 0.2s ease;
  --max-w: 760px;
  --nav-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text-primary); font-family: var(--font); font-weight: 400; line-height: 1.7; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.container--wide { max-width: 1060px; margin: 0 auto; padding: 0 24px; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { opacity: 0; animation: fadeUp 0.5s ease forwards; }
.fade-up-1 { animation-delay: 0.05s; }
.fade-up-2 { animation-delay: 0.15s; }
.fade-up-3 { animation-delay: 0.25s; }
.fade-up-4 { animation-delay: 0.35s; }
.fade-up-5 { animation-delay: 0.45s; }

/* NAVBAR */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h); border-bottom: 1px solid transparent;
  background: rgba(11,11,11,0.88); backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px); transition: border-color var(--transition);
}
.navbar.scrolled { border-color: var(--border-subtle); }
.navbar__inner {
  max-width: 1060px; margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.navbar__brand { font-size: 0.875rem; font-weight: 500; letter-spacing: 0.01em; color: var(--text-primary); transition: color var(--transition); }
.navbar__brand:hover { color: var(--accent); }
.navbar__links { display: flex; align-items: center; gap: 32px; }
.navbar__link { font-size: 0.875rem; color: var(--text-secondary); transition: color var(--transition); }
.navbar__link:hover, .navbar__link.active { color: var(--text-primary); }
.navbar__link--resume { color: var(--accent); font-weight: 500; }
.navbar__link--resume:hover { color: var(--accent-hover); }
.navbar__hamburger { display: none; flex-direction: column; gap: 5px; width: 22px; padding: 4px 0; }
.navbar__hamburger span { display: block; height: 1.5px; width: 100%; background: var(--text-secondary); border-radius: 2px; transition: transform 0.25s ease, opacity 0.25s ease; }
.navbar__hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.navbar__hamburger.open span:nth-child(2) { opacity: 0; }
.navbar__hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
.navbar__mobile { display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; background: rgba(11,11,11,0.97); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); padding: 16px 24px 24px; flex-direction: column; gap: 0; z-index: 99; }
.navbar__mobile.open { display: flex; }
.navbar__mobile-link { font-size: 0.9375rem; color: var(--text-secondary); padding: 14px 0; border-bottom: 1px solid var(--border-subtle); transition: color var(--transition); }
.navbar__mobile-link:last-child { border-bottom: none; }
.navbar__mobile-link:hover { color: var(--text-primary); }
.navbar__mobile-link--resume { color: var(--accent); }
.page-offset { padding-top: var(--nav-h); }

/* HERO */
.hero { padding: 96px 0 80px; border-bottom: 1px solid var(--border-subtle); }
.hero__name { font-size: clamp(2.6rem, 6vw, 4.2rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 8px; }
.hero__name-row { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 10px; }
.hero__meta { font-size: 0.8125rem; font-weight: 400; color: var(--text-muted); letter-spacing: 0.03em; margin-bottom: 0; }
.hero__social { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 0; margin-top: 2px; }
.hero__social-link { display: flex; align-items: center; gap: 6px; font-size: 0.8125rem; font-weight: 500; color: var(--accent); background: var(--accent-dim); padding: 6px 12px; border-radius: 8px; transition: background var(--transition), color var(--transition); }
.hero__social-link svg { width: 14px; height: 14px; flex-shrink: 0; }
.hero__social-link:hover { background: rgba(79, 140, 255, 0.18); color: var(--accent-hover); }
.hero__greeting { font-size: 1rem; color: var(--text-secondary); margin-bottom: 14px; padding-left: 60px; }
.hero__bio { font-size: 1.0625rem; color: var(--text-primary); line-height: 1.8; max-width: 760px; margin-bottom: 36px; padding-left: 60px; }
.hero__cta { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.8; border-left: 2px solid var(--border); padding-left: 16px; margin-left: 60px; }
.hero__cta a { color: var(--accent); transition: color var(--transition); }
.hero__cta a:hover { color: var(--accent-hover); }

/* AVATAR */
.hero__identity { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 32px; }
.hero__avatar { width: 44px; height: 44px; border-radius: 50%; object-fit: cover; border: 1.5px solid var(--border); flex-shrink: 0; margin-top: 2px; }
.hero__identity-text { display: flex; flex-direction: column; gap: 6px; }
.hero__name { font-size: clamp(1.8rem, 5vw, 2.75rem); font-weight: 700; letter-spacing: -0.03em; color: var(--text-primary); line-height: 1.1; margin: 0; }

/* SECTIONS */
.section { padding: 80px 0; border-bottom: 1px solid var(--border-subtle); }
.section__label { font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 36px; }
.section__title { font-size: 1.375rem; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 36px; }

/* TOOLS */
.tools__grid { display: flex; flex-wrap: wrap; gap: 10px; }
.tool-pill { display: flex; align-items: center; gap: 8px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; padding: 8px 14px; font-size: 0.8125rem; color: var(--text-secondary); transition: border-color var(--transition), color var(--transition); }
.tool-pill:hover { border-color: #2a2a2a; color: var(--text-primary); }
.tool-pill svg, .tool-pill img { width: 15px; height: 15px; flex-shrink: 0; opacity: 0.55; }
.tool-pill:hover svg, .tool-pill:hover img { opacity: 0.9; }

.tools__group-label { font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 12px; }

.tool-pill--ai img, .tool-pill--ai svg { opacity: 0.7; }
.tool-pill--ai { border-color: rgba(79,140,255,0.2); color: var(--text-primary); }
.tool-pill--ai:hover { border-color: rgba(79,140,255,0.45); background: rgba(79,140,255,0.06); color: var(--accent-hover); }
.tool-pill--ai:hover img, .tool-pill--ai:hover svg { opacity: 1; }

/* TIMELINE */
.timeline { position: relative; display: flex; flex-direction: column; }
.timeline::before { content: ''; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 1px; background: var(--border); }
.timeline__item { display: grid; grid-template-columns: 15px 1fr; gap: 0 28px; padding-bottom: 44px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__dot { width: 15px; height: 15px; border-radius: 50%; border: 1.5px solid var(--border); background: var(--bg); flex-shrink: 0; margin-top: 4px; transition: border-color var(--transition); position: relative; z-index: 1; }
.timeline__item:hover .timeline__dot { border-color: var(--accent); }
.timeline__year { font-size: 0.6875rem; letter-spacing: 0.08em; color: var(--text-muted); text-transform: uppercase; margin-bottom: 4px; }
.timeline__role { font-size: 0.9375rem; font-weight: 600; color: var(--text-primary); margin-bottom: 2px; }
.timeline__org { font-size: 0.8125rem; color: var(--accent); margin-bottom: 10px; font-weight: 500; }
.timeline__desc { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; max-width: 520px; }
.timeline__metric { display: inline-flex; align-items: center; gap: 6px; margin-top: 10px; font-size: 0.75rem; color: var(--accent); background: var(--accent-dim); border-radius: 4px; padding: 4px 10px; font-weight: 500; }
.timeline__link { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 6px; background: transparent; border: 1px solid var(--border); color: var(--text-secondary); transition: all 0.2s ease; text-decoration: none; }
.timeline__link:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); transform: translate(2px, -2px); }

/* PROJECT CARDS */
.projects-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.project-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; display: flex; flex-direction: column; gap: 10px; transition: border-color var(--transition), transform var(--transition); }
.project-card:hover { border-color: #252525; transform: translateY(-2px); }
.project-card__title { font-size: 0.9375rem; font-weight: 600; }
.project-card__desc { font-size: 0.8125rem; color: var(--text-secondary); line-height: 1.65; flex: 1; }
.project-card__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 0.625rem; font-weight: 500; letter-spacing: 0.06em; color: var(--text-muted); background: var(--bg-raised); border: 1px solid var(--border); border-radius: 4px; padding: 3px 8px; text-transform: uppercase; }
.project-card__link { margin-top: 4px; font-size: 0.8125rem; font-weight: 500; color: var(--accent); display: inline-flex; align-items: center; gap: 5px; transition: gap var(--transition), color var(--transition); }
.project-card:hover .project-card__link { gap: 9px; color: var(--accent-hover); }

/* PAGE HEADER */
.page-header { padding: 72px 0 56px; border-bottom: 1px solid var(--border-subtle); }
.page-header__label { font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 14px; }
.page-header__title { font-size: clamp(1.8rem, 4vw, 2.75rem); font-weight: 700; letter-spacing: -0.03em; margin-bottom: 12px; }
.page-header__sub { font-size: 0.9375rem; color: var(--text-secondary); max-width: 480px; line-height: 1.7; }

/* PROJECT ENTRIES (projects.html) */
.project-entry { padding: 64px 0; border-bottom: 1px solid var(--border-subtle); }
.project-entry:last-child { border-bottom: none; }
.project-entry__num { font-size: 0.6875rem; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 8px; }
.project-entry__title { font-size: 1.375rem; font-weight: 700; letter-spacing: -0.025em; margin-bottom: 10px; }
.project-entry__live-link { font-size: 0.75rem; font-weight: 500; color: var(--accent); letter-spacing: 0; vertical-align: middle; transition: color var(--transition); }
.project-entry__live-link:hover { color: var(--accent-hover); }
.project-entry__context { font-size: 0.875rem; color: var(--text-secondary); line-height: 1.7; max-width: 560px; }
.project-entry__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 14px; }
.tool-badge { font-size: 0.6875rem; font-weight: 500; color: var(--accent); background: var(--accent-dim); border-radius: 4px; padding: 4px 10px; letter-spacing: 0.04em; }
.project-entry__body { display: flex; flex-direction: column; gap: 28px; margin-top: 32px; }
.psec__label { font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 10px; }
.psec__text { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.8; max-width: 580px; }
.psec__text strong { color: var(--text-primary); font-weight: 500; }
.psec__list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.psec__list li { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.7; padding-left: 16px; position: relative; max-width: 580px; }
.psec__list li::before { content: ''; position: absolute; left: 0; top: 11px; width: 5px; height: 1px; background: var(--text-muted); }
.project-outcome { display: flex; gap: 12px; background: var(--bg-card); border: 1px solid var(--border); border-left: 2px solid var(--accent); border-radius: var(--radius); padding: 16px 20px; max-width: 580px; }
.project-outcome__text { font-size: 0.875rem; color: var(--text-primary); line-height: 1.7; }

/* BLOG */
.blog-list { display: flex; flex-direction: column; }
.blog-item { 
  display: flex !important; 
  align-items: center !important; 
  justify-content: space-between !important; 
  gap: 24px !important; 
  padding: 24px 28px !important; 
  border: 1px solid rgba(255, 255, 255, 0.12) !important; 
  border-radius: 12px !important;
  margin-bottom: 16px !important;
  background: rgba(255, 255, 255, 0.03) !important;
  transition: all 0.25s ease !important; 
  text-decoration: none !important;
}
.blog-item:hover { 
  border-color: var(--accent) !important;
  background: rgba(255, 255, 255, 0.06) !important;
  transform: translateY(-2px) !important;
}
.blog-item__main { flex: 1 !important; }
.blog-item__title { font-size: 1.0625rem !important; font-weight: 600 !important; margin-bottom: 0 !important; color: var(--text-primary) !important; transition: color 0.2s ease !important; }
.blog-item:hover .blog-item__title { color: var(--accent) !important; }
.blog-item__meta { display: flex !important; flex-direction: column !important; align-items: flex-end !important; gap: 4px !important; flex-shrink: 0 !important; text-align: right !important; }
.blog-item__date, .blog-item__reading { font-size: 0.75rem !important; color: var(--text-muted) !important; white-space: nowrap !important; }

/* BLOG POST */
.post-header { padding: 72px 0 48px; border-bottom: 1px solid var(--border-subtle); margin-bottom: 56px; }
.post-header__back { display: inline-flex; align-items: center; gap: 8px; font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 32px; transition: color var(--transition); }
.post-header__back:hover { color: var(--text-primary); }
.post-header__title { font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.25; margin-bottom: 16px; max-width: 640px; }
.post-header__meta { display: flex; align-items: center; gap: 14px; font-size: 0.8125rem; color: var(--text-muted); }
.post-header__meta-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--text-muted); }
.post-body { max-width: 620px; margin-bottom: 80px; }
.post-body p { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.85; margin-bottom: 22px; }
.post-body h2 { font-size: 1.125rem; font-weight: 600; letter-spacing: -0.02em; margin-top: 44px; margin-bottom: 14px; color: var(--text-primary); }
.post-body h3 { font-size: 1rem; font-weight: 600; margin-top: 30px; margin-bottom: 10px; color: var(--text-primary); }
.post-body ul, .post-body ol { margin-bottom: 22px; padding-left: 0; display: flex; flex-direction: column; gap: 8px; }
.post-body ul li, .post-body ol li { font-size: 0.9375rem; color: var(--text-secondary); line-height: 1.75; padding-left: 18px; position: relative; }
.post-body ul li::before { content: ''; position: absolute; left: 0; top: 11px; width: 5px; height: 1px; background: var(--text-muted); }
.post-body strong { color: var(--text-primary); font-weight: 500; }
.post-body blockquote { border-left: 2px solid var(--accent); padding: 12px 20px; margin: 28px 0; background: var(--bg-card); border-radius: 0 var(--radius) var(--radius) 0; }
.post-body blockquote p { color: var(--text-primary); margin-bottom: 0; }

/* FOOTER */
.footer { padding: 36px 0; border-top: 1px solid var(--border-subtle); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; }
.footer__text { font-size: 0.75rem; color: var(--text-muted); }
.footer__links { display: flex; align-items: center; gap: 20px; }
.footer__link { font-size: 0.75rem; color: var(--text-muted); transition: color var(--transition); }
.footer__link:hover { color: var(--text-secondary); }

/* RESPONSIVE */
@media (max-width: 768px) {
  .navbar__links { display: none; }
  .navbar__hamburger { display: flex; }
  .hero { padding: 60px 0 52px; }
  .hero__greeting, .hero__bio { padding-left: 0; }
  .hero__cta { margin-left: 0; }
  .projects-grid { grid-template-columns: 1fr; }
  .footer { flex-direction: column; align-items: flex-start; }
  .project-entry { padding: 48px 0; }
}

@media (max-width: 480px) {
  .hero__social { flex-wrap: wrap; gap: 12px; }
  .section { padding: 56px 0; }
  .page-header { padding: 52px 0 36px; }
}