* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #07090f;
  --bg2: #0c1220;
  --bg3: #111827;
  --border: rgba(255,255,255,0.07);
  --border-hover: rgba(99,102,241,0.4);
  --text: #e2e8f0;
  --muted: #6b7a9d;
  --muted2: #4a5578;
  --blue: #3b82f6;
  --violet: #8b5cf6;
  --green: #10b981;
  --orange: #f59e0b;
  --red: #ef4444;
  --grad: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --grad2: linear-gradient(135deg, #10b981, #3b82f6);
  --r: 12px;
  --font: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
}

html { scroll-behavior: smooth; font-size: 16px; }
body { background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.6; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(7,9,15,0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: border-color .3s;
}
.nav-logo { font-family: var(--mono); font-size: 1.05rem; font-weight: 600; }
.nav-logo span { background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; gap: 1.8rem; }
.nav-links a { font-size: .88rem; color: var(--muted); transition: color .2s; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  font-size: .85rem; font-weight: 600; padding: .45rem 1.1rem;
  background: var(--grad); border-radius: 6px; color: #fff !important;
  transition: opacity .2s;
}
.nav-cta:hover { opacity: .85; }

/* HERO */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 6rem 2rem 4rem; text-align: center; position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, rgba(59,130,246,.14) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 80% 70%, rgba(139,92,246,.09) 0%, transparent 60%),
    radial-gradient(ellipse 30% 20% at 20% 80%, rgba(16,185,129,.06) 0%, transparent 60%);
  transition: transform .1s linear;
}
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
}
.hero-content { position: relative; max-width: 820px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .8rem; font-family: var(--mono);
  color: var(--muted); border: 1px solid var(--border);
  padding: .35rem .9rem; border-radius: 99px; margin-bottom: 2rem;
  background: rgba(255,255,255,.03);
}
.hero-badge .dot { width: 7px; height: 7px; background: var(--green); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{ opacity:1; box-shadow: 0 0 0 0 rgba(16,185,129,.4); } 50%{ opacity:.5; box-shadow: 0 0 0 6px rgba(16,185,129,0); } }
.hero h1 { font-size: clamp(3rem, 7.5vw, 5.5rem); font-weight: 800; line-height: 1.05; margin-bottom: 1.2rem; letter-spacing: -.04em; }
.grad-text { background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-sub { font-size: 1.1rem; color: var(--muted); margin-bottom: 1.5rem; }
.hero-sub b { color: var(--text); }
.hero-desc { font-size: .97rem; color: var(--muted); max-width: 580px; margin: 0 auto 2.5rem; line-height: 1.75; }
.hero-traits { display: flex; flex-wrap: wrap; gap: .55rem; justify-content: center; margin-bottom: 2.5rem; }
.trait { font-family: var(--mono); font-size: .73rem; padding: .3rem .85rem; border-radius: 6px; background: rgba(255,255,255,.03); border: 1px solid var(--border); color: var(--muted); }
.hero-ctas { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: .5rem; padding: .72rem 1.6rem; border-radius: 8px; font-weight: 600; font-size: .9rem; transition: all .2s; cursor: pointer; }
.btn-primary { background: var(--grad); color: #fff; }
.btn-primary:hover { opacity: .9; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(59,130,246,.3); }
.btn-ghost { border: 1px solid var(--border); color: var(--muted); background: rgba(255,255,255,.02); }
.btn-ghost:hover { border-color: rgba(99,102,241,.5); color: var(--text); transform: translateY(-2px); }

/* SECTION WRAPPER */
.section-wrap { padding: 5rem 2rem; max-width: 1100px; margin: 0 auto; }
.section-label { font-family: var(--mono); font-size: .75rem; color: var(--blue); letter-spacing: .14em; text-transform: uppercase; margin-bottom: .75rem; }
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; margin-bottom: .75rem; letter-spacing: -.02em; }
.section-desc { color: var(--muted); font-size: .93rem; max-width: 580px; line-height: 1.7; }

/* ABOUT */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-top: 3rem; align-items: start; }
.about-text p { color: var(--muted); font-size: .93rem; line-height: 1.85; margin-bottom: 1rem; }
.about-text p strong, .about-text p b { color: var(--text); }
.about-text code { font-family: var(--mono); font-size: .8em; color: #94a3b8; background: rgba(255,255,255,.05); padding: .1em .35em; border-radius: 4px; }
.about-traits { display: flex; flex-direction: column; gap: .9rem; }
.trait-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r);
  padding: 1.1rem 1.2rem; display: flex; align-items: flex-start; gap: .9rem;
  transition: border-color .2s, transform .2s;
}
.trait-card:hover { border-color: rgba(99,102,241,.35); transform: translateX(3px); }
.trait-icon { font-size: 1.25rem; flex-shrink: 0; }
.trait-body-title { font-weight: 600; font-size: .88rem; margin-bottom: .2rem; }
.trait-body-desc { font-size: .78rem; color: var(--muted); line-height: 1.55; }

/* STACK */
.stack-grid { display: flex; flex-direction: column; gap: 1.3rem; margin-top: 2.5rem; }
.stack-row { display: flex; align-items: flex-start; gap: 1rem; }
.stack-label { font-family: var(--mono); font-size: .71rem; color: var(--muted2); width: 110px; flex-shrink: 0; padding-top: .28rem; }
.tags { display: flex; flex-wrap: wrap; gap: .45rem; }
.tag { font-family: var(--mono); font-size: .73rem; padding: .26rem .72rem; border-radius: 5px; border: 1px solid var(--border); color: var(--muted); background: var(--bg2); transition: all .15s; cursor: default; }
.tag:hover { color: var(--text); border-color: rgba(255,255,255,.15); }
.tag.go { border-color: rgba(0,173,216,.3); color: #4ac8e8; background: rgba(0,173,216,.05); }
.tag.py { border-color: rgba(53,114,165,.3); color: #70a8d8; background: rgba(53,114,165,.06); }
.tag.rs { border-color: rgba(222,165,132,.35); color: #e0a882; background: rgba(222,165,132,.06); }
.tag.ts { border-color: rgba(49,120,198,.3); color: #5da3e0; background: rgba(49,120,198,.06); }
.tag.kt { border-color: rgba(169,123,255,.3); color: #b994ff; background: rgba(169,123,255,.06); }

/* PROJECTS */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 1.2rem; margin-top: 2.5rem; }
.proj-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r);
  padding: 1.5rem; display: flex; flex-direction: column; gap: .9rem;
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.proj-card:hover {
  border-color: rgba(99,102,241,.35);
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,.45), 0 0 0 1px rgba(99,102,241,.08);
}
.proj-card.featured {
  border-color: rgba(59,130,246,.18);
  background: linear-gradient(150deg, rgba(59,130,246,.05) 0%, var(--bg2) 50%);
}
.proj-card.featured:hover { border-color: rgba(59,130,246,.4); }
.proj-top { display: flex; align-items: center; justify-content: space-between; }
.proj-badges { display: flex; gap: .4rem; flex-wrap: wrap; }
.badge { font-family: var(--mono); font-size: .67rem; padding: .18rem .52rem; border-radius: 4px; font-weight: 600; letter-spacing: .02em; }
.badge-prod { background: rgba(16,185,129,.12); color: #34d399; border: 1px solid rgba(16,185,129,.2); }
.badge-comm { background: rgba(245,158,11,.1); color: #fbbf24; border: 1px solid rgba(245,158,11,.2); }
.badge-os { background: rgba(59,130,246,.1); color: #60a5fa; border: 1px solid rgba(59,130,246,.2); }
.badge-research { background: rgba(139,92,246,.1); color: #a78bfa; border: 1px solid rgba(139,92,246,.2); }
.badge-saas { background: rgba(236,72,153,.1); color: #f472b6; border: 1px solid rgba(236,72,153,.2); }
.proj-link { color: var(--muted2); font-size: .85rem; transition: color .2s; }
.proj-link:hover { color: var(--blue); }
.proj-title { font-size: 1.05rem; font-weight: 700; letter-spacing: -.01em; }
.proj-desc { font-size: .84rem; color: var(--muted); line-height: 1.65; }
.proj-highlights { list-style: none; display: flex; flex-direction: column; gap: .38rem; }
.proj-highlights li { font-size: .79rem; color: var(--muted); display: flex; gap: .5rem; line-height: 1.5; }
.proj-highlights li::before { content: '\2192'; color: var(--blue); flex-shrink: 0; font-family: var(--mono); }
.proj-stack { display: flex; flex-wrap: wrap; gap: .38rem; margin-top: auto; padding-top: .75rem; border-top: 1px solid var(--border); }
.proj-stack .tag { font-size: .69rem; padding: .18rem .52rem; }

/* EXPERIENCE */
.exp-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: 2.5rem; }
.exp-stat { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r); padding: 1.4rem; text-align: center; }
.exp-num { font-size: 2.2rem; font-weight: 800; background: var(--grad); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-family: var(--mono); line-height: 1; }
.exp-label { font-size: .8rem; color: var(--muted); margin-top: .4rem; }
.orders-table { margin-top: 2rem; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r); overflow: hidden; }
.orders-table table { width: 100%; border-collapse: collapse; font-size: .82rem; }
.orders-table th { text-align: left; padding: .7rem 1.1rem; color: var(--muted2); font-family: var(--mono); font-size: .7rem; letter-spacing: .06em; text-transform: uppercase; border-bottom: 1px solid var(--border); background: rgba(255,255,255,.02); }
.orders-table td { padding: .65rem 1.1rem; border-bottom: 1px solid rgba(255,255,255,.025); color: var(--muted); }
.orders-table tr:last-child td { border-bottom: none; }
.orders-table tr:hover td { background: rgba(255,255,255,.02); }
.orders-table .amount { color: var(--text); font-family: var(--mono); font-weight: 600; }
.orders-table .total td { border-top: 1px solid var(--border); color: var(--text); font-weight: 600; }

/* CONTACT */
.contact-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 1rem; margin-top: 2.5rem; }
.contact-card {
  background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r);
  padding: 1.3rem; display: flex; align-items: center; gap: 1rem;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.contact-card:hover { border-color: rgba(99,102,241,.4); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.3); }
.contact-icon { width: 44px; height: 44px; display: flex; align-items: center; justify-content: center; border-radius: 10px; background: rgba(255,255,255,.05); font-size: 1.3rem; flex-shrink: 0; }
.contact-name { font-weight: 600; font-size: .9rem; }
.contact-val { font-size: .77rem; color: var(--muted); font-family: var(--mono); }

/* FOOTER */
footer { text-align: center; padding: 2.5rem; color: var(--muted2); font-size: .78rem; border-top: 1px solid var(--border); font-family: var(--mono); margin-top: 2rem; }

/* DIVIDER */
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--border), transparent); max-width: 1100px; margin: 0 auto; }

/* SCROLL ANIMATIONS */
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity .65s ease, transform .65s ease; }
.fade-up.visible { opacity: 1; transform: none; }
.fade-up.delay-1 { transition-delay: .1s; }
.fade-up.delay-2 { transition-delay: .2s; }

/* RESPONSIVE */
@media (max-width: 860px) {
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .exp-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  nav { padding: .75rem 1.25rem; }
  .nav-links { display: none; }
  .section-wrap { padding: 3.5rem 1.25rem; }
  .hero { padding: 5rem 1.25rem 3rem; }
  .projects-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .exp-stats { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 2.6rem; }
}