/* ─── TOKENS ─────────────────────────────────────────── */
:root {
  --bg:      #081a10;
  --bg2:     #0d2318;
  --bg3:     #122d1f;
  --border:  #1a3d28;
  --accent:  #6ee7b7;
  --accent2: #34d399;
  --text:    #e2f5ec;
  --muted:   #5a8a72;
  --mono:    'JetBrains Mono', monospace;
  --sans:    'Inter', sans-serif;
}

/* ─── RESET ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ─── NAV ────────────────────────────────────────────── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 5vw; height: 64px;
  background: rgba(8,26,16,.90);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { font-family: var(--mono); font-size: 1rem; color: var(--accent); letter-spacing: .03em; }
.nav-logo span { color: var(--muted); }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { font-size: .85rem; color: var(--muted); transition: color .2s; font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.nav-links a.active { color: var(--accent); }
.lang-btn {
  font-family: var(--mono); font-size: .75rem; color: var(--accent);
  border: 1px solid var(--border); background: transparent;
  padding: .3rem .8rem; border-radius: 4px; cursor: pointer;
  transition: background .2s; margin-left: 1.5rem;
}
.lang-btn:hover { background: var(--border); }
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--text); border-radius: 2px; }

/* ─── HERO ───────────────────────────────────────────── */
#hero {
  min-height: 100vh; display: flex; flex-direction: column;
  justify-content: center; padding: 0 5vw; padding-top: 64px;
  position: relative; overflow: hidden;
}
.hero-grid-bg {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px; opacity: .25;
  mask-image: radial-gradient(ellipse 80% 60% at 60% 40%, black 30%, transparent 80%);
}
.hero-content { position: relative; z-index: 1; max-width: 720px; }
.hero-eyebrow {
  font-family: var(--mono); font-size: .8rem; color: var(--accent);
  letter-spacing: .12em; text-transform: uppercase; margin-bottom: 1.2rem;
}
.hero-name {
  font-size: clamp(2.8rem, 6vw, 5rem); font-weight: 700;
  line-height: 1.05; letter-spacing: -.03em; margin-bottom: .6rem;
}
.hero-title {
  font-family: var(--mono); font-size: clamp(1rem, 2.2vw, 1.4rem);
  color: var(--accent2); margin-bottom: 1.6rem; min-height: 2rem;
}
.cursor {
  display: inline-block; width: 2px; height: 1.1em;
  background: var(--accent); margin-left: 2px; vertical-align: middle;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }
.hero-desc { color: var(--muted); max-width: 520px; margin-bottom: 2.4rem; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn-primary {
  padding: .75rem 1.8rem; background: var(--accent); color: #081a10;
  font-weight: 600; border-radius: 6px; font-size: .9rem;
  transition: opacity .2s, transform .15s; display: inline-block;
}
.btn-primary:hover { opacity: .88; transform: translateY(-1px); }
.btn-outline {
  padding: .75rem 1.8rem; border: 1px solid var(--border); border-radius: 6px;
  font-size: .9rem; color: var(--text); transition: border-color .2s, background .2s; display: inline-block;
}
.btn-outline:hover { border-color: var(--accent); background: var(--bg3); }
.hero-badges { display: flex; gap: .75rem; flex-wrap: wrap; margin-top: 3.5rem; }
.badge {
  font-family: var(--mono); font-size: .72rem; color: var(--muted);
  border: 1px solid var(--border); border-radius: 4px; padding: .25rem .7rem;
}

/* ─── SECTIONS ───────────────────────────────────────── */
section { padding: 7rem 5vw; }
.section-label {
  font-family: var(--mono); font-size: .75rem; color: var(--accent);
  letter-spacing: .15em; text-transform: uppercase; margin-bottom: .6rem;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700;
  letter-spacing: -.025em; margin-bottom: 1rem;
}
.divider {
  width: 48px; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  margin-bottom: 3.5rem; border-radius: 2px;
}

/* ─── ABOUT ──────────────────────────────────────────── */
#about { background: var(--bg2); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.about-text p { color: var(--muted); margin-bottom: 1rem; line-height: 1.8; }
.about-text p strong { color: var(--text); }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.stat-card { background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; padding: 1.5rem; }
.stat-number { font-family: var(--mono); font-size: 2rem; font-weight: 700; color: var(--accent); line-height: 1; margin-bottom: .4rem; }
.stat-label { font-size: .8rem; color: var(--muted); }

/* ─── SKILLS ─────────────────────────────────────────── */
#skills { background: var(--bg); }
.skills-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.5rem; }
.skill-category { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 1.6rem; transition: border-color .2s; }
.skill-category:hover { border-color: var(--accent); }
.skill-cat-title { font-family: var(--mono); font-size: .78rem; color: var(--accent2); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 1.2rem; }
.skill-tags { display: flex; flex-wrap: wrap; gap: .5rem; }
.skill-tag { font-family: var(--mono); font-size: .72rem; background: var(--bg3); border: 1px solid var(--border); border-radius: 4px; padding: .2rem .6rem; color: var(--text); }

/* ─── EXPERIENCE ─────────────────────────────────────── */
#experience { background: var(--bg2); }
.timeline { position: relative; }
.timeline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 1px; background: linear-gradient(180deg, var(--accent), var(--border)); }
.timeline-item { padding-left: 2.5rem; margin-bottom: 3rem; position: relative; }
.timeline-dot { position: absolute; left: -5px; top: 6px; width: 11px; height: 11px; border-radius: 50%; background: var(--accent); border: 2px solid var(--bg2); }
.timeline-period { font-family: var(--mono); font-size: .72rem; color: var(--accent); margin-bottom: .4rem; }
.timeline-role { font-size: 1.1rem; font-weight: 600; margin-bottom: .2rem; }
.timeline-company { color: var(--muted); font-size: .9rem; margin-bottom: .8rem; }
.timeline-desc { color: var(--muted); font-size: .9rem; line-height: 1.7; }

/* ─── PROJECTS ───────────────────────────────────────── */
#projects { background: var(--bg); }
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.5rem; }
.project-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 10px; padding: 1.8rem; display: flex; flex-direction: column; transition: border-color .2s, transform .2s; }
.project-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.project-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1rem; }
.project-icon { font-size: 1.6rem; }
.project-links { display: flex; gap: .5rem; }
.project-link { font-family: var(--mono); font-size: .68rem; color: var(--muted); border: 1px solid var(--border); border-radius: 4px; padding: .2rem .5rem; transition: color .2s, border-color .2s; }
.project-link:hover { color: var(--accent); border-color: var(--accent); }
.project-thumb { width: 100%; height: 140px; object-fit: cover; border-radius: 6px; margin-bottom: 1rem; border: 1px solid var(--border); }
.project-name { font-size: 1.05rem; font-weight: 600; margin-bottom: .6rem; }
.project-desc { color: var(--muted); font-size: .88rem; line-height: 1.65; margin-bottom: 1.2rem; flex: 1; }
.project-stack { display: flex; flex-wrap: wrap; gap: .4rem; }
.stack-tag { font-family: var(--mono); font-size: .65rem; background: var(--bg3); border: 1px solid var(--border); border-radius: 3px; padding: .15rem .5rem; color: var(--accent2); }

/* ─── BLOG ───────────────────────────────────────────── */
#blog { background: var(--bg2); }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.blog-card { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 1.8rem; transition: border-color .2s; }
.blog-card:hover { border-color: var(--accent2); }
.blog-date { font-family: var(--mono); font-size: .7rem; color: var(--muted); margin-bottom: .8rem; }
.blog-title { font-size: 1rem; font-weight: 600; margin-bottom: .6rem; line-height: 1.4; }
.blog-excerpt { color: var(--muted); font-size: .85rem; line-height: 1.65; margin-bottom: 1rem; }
.blog-tag { font-family: var(--mono); font-size: .65rem; color: var(--accent2); border: 1px solid var(--border); border-radius: 3px; padding: .15rem .5rem; }
.blog-read-more { display: inline-block; margin-top: .8rem; font-family: var(--mono); font-size: .72rem; color: var(--accent); }
.blog-read-more:hover { text-decoration: underline; }

/* ─── CONTACT ────────────────────────────────────────── */
#contact { background: var(--bg); }
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.contact-info p { color: var(--muted); margin-bottom: 2rem; line-height: 1.8; }
.contact-links { display: flex; flex-direction: column; gap: .8rem; }
.contact-link { display: flex; align-items: center; gap: .75rem; color: var(--muted); font-size: .9rem; transition: color .2s; }
.contact-link:hover { color: var(--accent); }
.contact-link-icon { font-family: var(--mono); font-size: .75rem; color: var(--accent); width: 28px; }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-label { font-size: .8rem; color: var(--muted); font-family: var(--mono); }
.form-input, .form-textarea { background: var(--bg2); border: 1px solid var(--border); border-radius: 6px; padding: .75rem 1rem; color: var(--text); font-family: var(--sans); font-size: .9rem; transition: border-color .2s; outline: none; }
.form-input:focus, .form-textarea:focus { border-color: var(--accent); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-input::placeholder, .form-textarea::placeholder { color: var(--muted); }

/* ─── FOOTER ─────────────────────────────────────────── */
footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 2rem 5vw; display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.footer-copy { font-family: var(--mono); font-size: .72rem; color: var(--muted); }
.footer-back { font-family: var(--mono); font-size: .72rem; color: var(--accent); cursor: pointer; }
.footer-back:hover { text-decoration: underline; }

/* ─── BLOG PAGE ──────────────────────────────────────── */
.blog-page-hero { padding: 8rem 5vw 4rem; background: var(--bg2); border-bottom: 1px solid var(--border); }
.blog-page-grid { padding: 4rem 5vw; display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.5rem; }

/* ─── BLOG POST ──────────────────────────────────────── */
.post-hero { padding: 8rem 5vw 4rem; background: var(--bg2); border-bottom: 1px solid var(--border); max-width: 800px; }
.post-body { max-width: 720px; margin: 0 auto; padding: 4rem 5vw; }
.post-body h2 { font-size: 1.4rem; font-weight: 600; margin: 2.5rem 0 1rem; color: var(--text); }
.post-body p { color: var(--muted); line-height: 1.9; margin-bottom: 1.2rem; }
.post-body code { font-family: var(--mono); font-size: .85rem; background: var(--bg3); border: 1px solid var(--border); border-radius: 4px; padding: .15rem .4rem; color: var(--accent); }
.post-body pre { background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; padding: 1.5rem; margin: 1.5rem 0; overflow-x: auto; }
.post-body pre code { background: none; border: none; padding: 0; color: var(--text); font-size: .85rem; }
.post-body ul { color: var(--muted); padding-left: 1.5rem; margin-bottom: 1.2rem; line-height: 1.9; }
.post-body li { margin-bottom: .4rem; }
.post-back { display: inline-flex; align-items: center; gap: .5rem; font-family: var(--mono); font-size: .8rem; color: var(--accent); margin-bottom: 2rem; }
.post-back:hover { text-decoration: underline; }
.post-tag { font-family: var(--mono); font-size: .72rem; color: var(--accent2); border: 1px solid var(--border); border-radius: 4px; padding: .2rem .6rem; margin-right: .5rem; }

/* ─── FADE ───────────────────────────────────────────── */
.fade-in { opacity: 0; transform: translateY(20px); transition: opacity .6s, transform .6s; }
.fade-in.visible { opacity: 1; transform: none; }

/* ─── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg2); border-bottom: 1px solid var(--border); padding: 1rem 5vw; gap: 1rem; }
  .hamburger { display: flex; }
  .about-grid, .contact-wrap { grid-template-columns: 1fr; }
  .post-body { padding: 2rem 5vw; }
}