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

:root {
  --bg: #080c10;
  --bg2: #0d1117;
  --bg3: #111820;
  --accent: #00d4ff;
  --accent-dim: rgba(0,212,255,0.08);
  --border: rgba(0,212,255,0.15);
  --border-bright: rgba(0,212,255,0.35);
  --text: #e8f4f8;
  --muted: #6b8a9a;
  --card: #0d1520;
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: 'Syne', sans-serif; overflow-x: hidden; line-height: 1.6; }

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1.2rem 5vw;
  display: flex; justify-content: space-between; align-items: center;
  background: rgba(8,12,16,0.88); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo { font-family: 'Space Mono', monospace; font-size: 1rem; color: var(--accent); letter-spacing: .05em; }
.logo span { color: var(--muted); }
nav ul { list-style: none; display: flex; gap: 2rem; }
nav ul li a { text-decoration: none; color: var(--muted); font-size: .85rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; transition: color .2s; }
nav ul li a:hover { color: var(--accent); }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--text); padding: .4rem .8rem; cursor: pointer; font-size: 1.1rem; }

/* HERO */
.hero { min-height: 100vh; display: flex; align-items: center; padding: 8rem 5vw 4rem; position: relative; overflow: hidden; }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(var(--border) 1px,transparent 1px), linear-gradient(90deg,var(--border) 1px,transparent 1px); background-size: 60px 60px; opacity: .3; mask-image: radial-gradient(ellipse 80% 60% at 50% 50%,black 20%,transparent 100%); }
.hero-glow { position: absolute; top: 20%; left: 10%; width: 600px; height: 400px; background: radial-gradient(ellipse,rgba(0,212,255,.06) 0%,transparent 70%); pointer-events: none; }
.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero-badge { display: inline-block; font-family: 'Space Mono',monospace; font-size: .75rem; color: var(--accent); border: 1px solid var(--border-bright); background: var(--accent-dim); padding: .4rem 1rem; border-radius: 2px; margin-bottom: 2rem; letter-spacing: .1em; }
.hero h1 { font-size: clamp(3rem,8vw,6rem); font-weight: 800; line-height: 1.0; margin-bottom: .5rem; letter-spacing: -.02em; }
.hero h1 .last { color: var(--accent); }
.hero-sub { font-family: 'Space Mono',monospace; font-size: 1rem; color: var(--muted); margin-bottom: 1.5rem; letter-spacing: .05em; }
.cursor { display: inline-block; width: 2px; height: 1em; background: var(--accent); margin-left: 4px; vertical-align: -1px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 0%,50%{opacity:1} 51%,100%{opacity:0} }
.hero p { font-size: 1.15rem; color: #9ab4c0; max-width: 520px; margin-bottom: 2.5rem; line-height: 1.75; }
.btn-group { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn { display: inline-block; padding: .85rem 2rem; font-family: 'Syne',sans-serif; font-size: .9rem; font-weight: 700; letter-spacing: .05em; text-decoration: none; border-radius: 3px; transition: all .25s; cursor: pointer; }
.btn-primary { background: var(--accent); color: #000; border: 1px solid var(--accent); }
.btn-primary:hover { background: transparent; color: var(--accent); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border-bright); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* SECTIONS */
section { padding: 6rem 5vw; }
.section-label { font-family: 'Space Mono',monospace; font-size: .75rem; color: var(--accent); letter-spacing: .15em; text-transform: uppercase; margin-bottom: .75rem; }
.section-title { font-size: clamp(1.8rem,4vw,2.8rem); font-weight: 800; margin-bottom: 1rem; letter-spacing: -.02em; }
.section-desc { color: var(--muted); font-size: 1rem; max-width: 500px; margin-bottom: 3.5rem; line-height: 1.7; }

/* SERVICES */
#услуги { background: var(--bg2); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); gap: 1.5px; background: var(--border); border: 1px solid var(--border); }
.service-card { background: var(--card); padding: 2.5rem 2rem; transition: background .25s; position: relative; overflow: hidden; }
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .3s; }
.service-card:hover { background: var(--bg3); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon { width: 48px; height: 48px; border: 1px solid var(--border-bright); display: flex; align-items: center; justify-content: center; margin-bottom: 1.5rem; font-size: 1.5rem; }
.service-card h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: .75rem; }
.service-card p { font-size: .9rem; color: var(--muted); line-height: 1.65; }
.service-tag { display: inline-block; margin-top: 1.25rem; font-family: 'Space Mono',monospace; font-size: .7rem; color: var(--accent); letter-spacing: .08em; padding: .3rem .6rem; border: 1px solid var(--border); background: var(--accent-dim); }

/* ABOUT */
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.terminal { background: #050810; border: 1px solid var(--border-bright); border-radius: 4px; font-family: 'Space Mono',monospace; font-size: .8rem; overflow: hidden; }
.terminal-bar { background: #0d1520; padding: .6rem 1rem; display: flex; align-items: center; gap: .5rem; border-bottom: 1px solid var(--border); }
.dot { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #ff5f57; } .dot-y { background: #febc2e; } .dot-g { background: #28c840; }
.terminal-title { flex: 1; text-align: center; font-size: .7rem; color: var(--muted); }
.terminal-body { padding: 1.25rem 1.25rem 1.5rem; line-height: 2; color: #8ab4c4; }
.terminal-body .prompt { color: var(--accent); }
.terminal-body .comment { color: #3d6070; }
.terminal-body .string { color: #7dd4e0; }
.terminal-body .key { color: #c4a4e0; }
.stats-row { display: flex; gap: 2rem; margin-top: 2.5rem; }
.stat-num { font-size: 2.2rem; font-weight: 800; color: var(--accent); line-height: 1; }
.stat-label { font-size: .8rem; color: var(--muted); margin-top: .3rem; letter-spacing: .05em; }

/* PORTFOLIO */
#портфолио { background: var(--bg2); }
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(300px,1fr)); gap: 1.5rem; }
.project-card { background: var(--card); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; transition: border-color .25s, transform .25s; }
.project-card:hover { border-color: var(--border-bright); transform: translateY(-4px); }
.project-thumb { height: 160px; display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; }
.project-thumb-link { display: block; text-decoration: none; }
.project-thumb-link:hover .project-url-badge { opacity: 1; transform: translateY(0); }
.project-thumb-link:hover .project-thumb { filter: brightness(1.1); }
.project-icon { font-size: 3rem; }
.project-url-badge { position: absolute; bottom: 0; left: 0; right: 0; background: rgba(0,212,255,0.85); color: #000; font-family: 'Space Mono',monospace; font-size: .75rem; font-weight: 700; text-align: center; padding: .5rem; letter-spacing: .08em; opacity: 0; transform: translateY(4px); transition: all .2s; }
.project-ext-link { font-size: .85rem; color: var(--accent); text-decoration: none; margin-left: .4rem; }
.project-ext-link:hover { opacity: .7; }
.project-thumb-line { position: absolute; bottom: 0; left: 0; right: 0; height: 2px; background: var(--accent); opacity: .4; }
.project-info { padding: 1.5rem; }
.project-info h3 { font-size: 1rem; font-weight: 700; margin-bottom: .5rem; }
.project-info p { font-size: .85rem; color: var(--muted); line-height: 1.6; margin-bottom: 1rem; }
.tag-row { display: flex; gap: .5rem; flex-wrap: wrap; }
.tag { font-family: 'Space Mono',monospace; font-size: .65rem; padding: .25rem .5rem; border: 1px solid var(--border); color: var(--accent); letter-spacing: .05em; }

/* CONTACT */
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.contact-item { display: flex; align-items: center; gap: 1rem; padding: 1.25rem 0; border-bottom: 1px solid var(--border); }
.contact-item:last-child { border-bottom: none; }
.contact-icon { width: 44px; height: 44px; border: 1px solid var(--border-bright); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; color: var(--accent); }
.contact-item-label { font-family: 'Space Mono',monospace; font-size: .7rem; color: var(--muted); letter-spacing: .1em; margin-bottom: .2rem; }
.contact-item-val { font-size: .95rem; font-weight: 600; }

/* FORM */
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; }
.form-group label { font-family: 'Space Mono',monospace; font-size: .7rem; color: var(--muted); letter-spacing: .1em; text-transform: uppercase; }
.form-group input, .form-group textarea { background: var(--card); border: 1px solid var(--border); color: var(--text); padding: .75rem 1rem; font-family: 'Syne',sans-serif; font-size: .9rem; border-radius: 2px; transition: border-color .2s; outline: none; resize: vertical; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent); background: var(--bg3); }
.form-group textarea { min-height: 120px; }

/* ALERTS */
.alert { padding: 1rem 1.25rem; border-radius: 3px; margin-bottom: 1rem; font-size: .9rem; }
.alert-success { background: rgba(40,200,64,.1); border: 1px solid rgba(40,200,64,.3); color: #28c840; }
.alert-error { background: rgba(255,80,80,.1); border: 1px solid rgba(255,80,80,.3); color: #ff6060; }

/* FOOTER */
footer { border-top: 1px solid var(--border); padding: 2rem 5vw; display: flex; justify-content: space-between; align-items: center; font-family: 'Space Mono',monospace; font-size: .75rem; color: var(--muted); }
.footer-accent { color: var(--accent); }

/* RESPONSIVE */
@media(max-width:768px) {
  nav ul { display: none; flex-direction: column; position: fixed; top: 65px; left: 0; right: 0; background: rgba(8,12,16,.97); border-bottom: 1px solid var(--border); padding: 1.5rem 5vw; gap: 1.5rem; }
  nav ul.open { display: flex; }
  .nav-toggle { display: block; }
  .about-inner, .contact-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .stats-row { gap: 1.5rem; }
}