/* Портфолио – тъмен елегантен стил */
:root {
    --bg: #0b1120;
    --panel: #111a2e;
    --border: rgba(148, 163, 184, .14);
    --text: #e6ecf7;
    --muted: #94a3b8;
    --accent: #6366f1;
    --accent2: #8b5cf6;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: "Segoe UI", system-ui, sans-serif;
    background: radial-gradient(900px 400px at 80% -10%, rgba(99,102,241,.15), transparent 60%), var(--bg);
    color: var(--text);
    line-height: 1.6;
}
a { color: inherit; text-decoration: none; }

/* Навигация */
.nav {
    position: sticky; top: 0; z-index: 10;
    display: flex; justify-content: space-between; align-items: center;
    padding: 14px 6vw;
    background: rgba(11, 17, 32, .8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}
.logo { font-weight: 800; font-size: 1.3em; letter-spacing: .02em; }
.logo span { color: var(--accent); }
.nav nav { display: flex; gap: 22px; align-items: center; font-size: .92em; }
.nav nav a:not(.btn) { color: var(--muted); transition: .2s; }
.nav nav a:not(.btn):hover { color: #fff; }

/* Бутони */
.btn {
    padding: 10px 20px; border-radius: 10px;
    background: var(--panel); border: 1px solid var(--border);
    color: var(--text); font-weight: 600; font-size: .92em;
    transition: .2s;
}
.btn:hover { border-color: var(--accent); transform: translateY(-1px); }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); border: none; }
.btn.primary:hover { filter: brightness(1.1); }

/* Hero */
.hero { text-align: center; padding: 90px 20px 60px; }
.avatar {
    width: 96px; height: 96px; margin: 0 auto 20px;
    border-radius: 28px; font-size: 3em;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    box-shadow: 0 12px 34px rgba(99,102,241,.4);
}
.hero h1 { font-size: clamp(2rem, 5vw, 3rem); letter-spacing: -.02em; }
.tag { color: var(--accent2); font-weight: 700; margin: 6px 0 14px; }
.lead { color: var(--muted); max-width: 520px; margin: 0 auto 26px; }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Секции */
.section { padding: 70px 6vw; max-width: 1000px; margin: 0 auto; }
.section.alt { background: rgba(255,255,255,.02); border-block: 1px solid var(--border); }
.section h2 { font-size: 1.8em; text-align: center; margin-bottom: 34px; letter-spacing: -.02em; }

.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 30px; align-items: center; }
.about-text p { color: var(--muted); margin-bottom: 12px; }
.facts { list-style: none; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 22px; }
.facts li { padding: 8px 0; border-bottom: 1px solid var(--border); font-size: .95em; }
.facts li:last-child { border-bottom: none; }

/* Умения */
.skills { display: grid; gap: 16px; max-width: 560px; margin: 0 auto; }
.skill .bar {
    height: 34px; border-radius: 10px; overflow: hidden;
    background: var(--panel); border: 1px solid var(--border);
    position: relative;
}
.skill .bar::before {
    content: ""; position: absolute; inset: 0;
    width: var(--w); background: linear-gradient(90deg, var(--accent), var(--accent2));
    border-radius: 10px;
}
.skill .bar span { position: relative; padding-left: 14px; font-weight: 600; font-size: .9em; line-height: 34px; }

/* Проекти */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 18px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 18px; transition: .25s; }
.card:hover { transform: translateY(-4px); border-color: rgba(99,102,241,.5); }
.thumb { height: 110px; border-radius: 12px; font-size: 2.6em; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.grad1 { background: linear-gradient(135deg, #6366f1, #22d3ee); }
.grad2 { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.grad3 { background: linear-gradient(135deg, #10b981, #22d3ee); }
.grad4 { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.card h3 { font-size: 1.05em; margin-bottom: 6px; }
.card p { color: var(--muted); font-size: .9em; margin-bottom: 12px; }
.tag { display: inline-block; font-size: .75em; font-weight: 700; color: #a5b4fc; background: rgba(99,102,241,.15); padding: 4px 10px; border-radius: 999px; }

/* Контакт */
.muted { color: var(--muted); text-align: center; margin-bottom: 22px; }
.contact-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

footer { text-align: center; padding: 26px; color: var(--muted); font-size: .88em; border-top: 1px solid var(--border); }

@media (max-width: 640px) {
    .nav { flex-direction: column; gap: 10px; padding: 12px 16px; }
    .nav nav { flex-wrap: wrap; justify-content: center; gap: 14px; }
    .about-grid { grid-template-columns: 1fr; }
    .section { padding: 50px 18px; }
}