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

:root {
    --color-bg: #0f1117;
    --color-bg-alt: #161b27;
    --color-text: #e2e8f0;
    --color-muted: #8892a4;
    --color-accent: #6c63ff;
    --color-accent-hover: #5a52d5;
    --color-border: #1e2535;
    --font: 'Inter', system-ui, sans-serif;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0,0,0,.4);
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    font-size: 16px;
}

a { color: var(--color-accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-accent-hover); }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── Header / Nav ── */
.header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(15,17,23,.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex; align-items: center;
    height: 64px; gap: 32px;
}

.nav__logo {
    font-size: 1.2rem; font-weight: 700;
    color: var(--color-text);
    letter-spacing: -.5px;
}

.nav__links {
    display: flex; list-style: none;
    gap: 4px; margin-left: auto;
}

.nav__links a {
    color: var(--color-muted);
    padding: 6px 12px; border-radius: 8px;
    font-size: .9rem; font-weight: 500;
    transition: color .2s, background .2s;
}

.nav__links a:hover, .nav__links a.active {
    color: var(--color-text);
    background: rgba(108,99,255,.15);
}

.nav__blog {
    background: var(--color-accent) !important;
    color: #fff !important;
    border-radius: 8px;
}

.nav__blog:hover { background: var(--color-accent-hover) !important; }

.nav__burger {
    display: none; flex-direction: column; gap: 5px;
    background: none; border: none; cursor: pointer;
    padding: 4px; margin-left: auto;
}

.nav__burger span {
    display: block; width: 24px; height: 2px;
    background: var(--color-text); border-radius: 2px;
    transition: .3s;
}

/* ── Buttons ── */
.btn {
    display: inline-block; padding: 12px 28px;
    border-radius: 10px; font-weight: 600; font-size: .95rem;
    cursor: pointer; transition: all .2s; border: 2px solid transparent;
}

.btn--primary {
    background: var(--color-accent); color: #fff;
}
.btn--primary:hover {
    background: var(--color-accent-hover); color: #fff;
    transform: translateY(-1px); box-shadow: 0 8px 20px rgba(108,99,255,.4);
}

.btn--outline {
    background: transparent; color: var(--color-text);
    border-color: var(--color-border);
}
.btn--outline:hover {
    border-color: var(--color-accent); color: var(--color-accent);
}

/* ── Sections ── */
.section { padding: 80px 0; }
.section--alt { background: var(--color-bg-alt); }

.section__title {
    font-size: 2rem; font-weight: 700;
    margin-bottom: 48px; text-align: center;
}

/* ── Hero ── */
.hero { padding: 100px 0 80px; }

.hero__inner {
    display: grid; grid-template-columns: 1fr auto;
    align-items: center; gap: 60px;
}

.hero__greeting { color: var(--color-accent); font-weight: 500; margin-bottom: 8px; }

.hero__name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700; line-height: 1.1;
    margin-bottom: 16px;
}

.hero__role { color: var(--color-muted); font-size: 1.1rem; margin-bottom: 40px; }

.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero__avatar, .about__avatar {
    width: 220px; height: 220px; border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent), #a78bfa);
    box-shadow: var(--shadow);
}

/* ── Cards ── */
.cards {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
    transition: border-color .2s, transform .2s;
}

.card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.card__icon { font-size: 2rem; margin-bottom: 16px; }
.card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.card p { color: var(--color-muted); }

/* ── Page hero ── */
.page-hero {
    padding: 60px 0 40px;
    border-bottom: 1px solid var(--color-border);
}

.page-hero__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
}

/* ── About ── */
.about {
    display: grid; grid-template-columns: auto 1fr;
    gap: 60px; align-items: start;
}

.about__avatar { width: 180px; height: 180px; }

.about__role { color: var(--color-accent); margin-bottom: 20px; }

.about__content p { color: var(--color-muted); margin-bottom: 16px; }

.about__content .btn { margin-top: 8px; }

/* ── Projects ── */
.projects {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.project-card {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 28px;
    transition: border-color .2s, transform .2s;
}

.project-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.project-card__header { margin-bottom: 12px; }

.project-card__tag {
    background: rgba(108,99,255,.15);
    color: var(--color-accent);
    font-size: .8rem; font-weight: 600;
    padding: 4px 10px; border-radius: 6px;
}

.project-card__title { font-size: 1.2rem; margin-bottom: 8px; }
.project-card__desc { color: var(--color-muted); font-size: .95rem; margin-bottom: 16px; }
.project-card__link { font-weight: 600; font-size: .9rem; }

/* ── Skills ── */
.skill-groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 48px; }

.skill-group__title { font-size: 1.3rem; font-weight: 600; margin-bottom: 24px; color: var(--color-accent); }

.skill { margin-bottom: 20px; }

.skill__meta {
    display: flex; justify-content: space-between;
    margin-bottom: 8px; font-size: .9rem;
}

.skill__name { font-weight: 500; }
.skill__pct { color: var(--color-muted); }

.skill__bar {
    height: 6px; background: var(--color-border);
    border-radius: 3px; overflow: hidden;
}

.skill__fill {
    height: 100%; background: var(--color-accent);
    border-radius: 3px;
    animation: fillBar .8s ease-out both;
}

@keyframes fillBar {
    from { width: 0 !important; }
}

/* ── Contacts ── */
.contacts {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 60px; align-items: start;
}

.contacts__info h2 { font-size: 1.6rem; margin-bottom: 16px; }
.contacts__info > p { color: var(--color-muted); margin-bottom: 32px; }

.contact-list { list-style: none; }
.contact-list__item {
    display: flex; align-items: center; gap: 12px;
    margin-bottom: 16px; color: var(--color-muted);
}
.contact-list__icon { font-size: 1.2rem; }

.contact-form { display: flex; flex-direction: column; gap: 20px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label { font-size: .9rem; font-weight: 500; color: var(--color-muted); }

.form-group input,
.form-group textarea {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    color: var(--color-text);
    font-family: var(--font); font-size: 1rem;
    padding: 12px 16px;
    outline: none; transition: border-color .2s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
}

/* ── Stats ── */
.stats {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
}

.stat {
    text-align: center; padding: 32px 16px;
    border: 1px solid var(--color-border); border-radius: var(--radius);
}

.stat__value {
    display: block; font-size: 2.4rem; font-weight: 700;
    color: var(--color-accent); line-height: 1.1; margin-bottom: 8px;
}

.stat__label { color: var(--color-muted); font-size: .85rem; line-height: 1.4; }

/* ── Timeline ── */
.timeline { display: flex; flex-direction: column; gap: 0; }

.timeline__item {
    display: grid; grid-template-columns: 160px 1fr;
    gap: 24px; padding: 28px 0;
    border-bottom: 1px solid var(--color-border);
}

.timeline__item:last-child { border-bottom: none; }

.timeline__period { color: var(--color-accent); font-size: .85rem; font-weight: 600; padding-top: 4px; }

.timeline__company { font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }

.timeline__role { color: var(--color-muted); font-size: .9rem; margin-bottom: 8px; }

.timeline__desc { color: var(--color-muted); font-size: .9rem; line-height: 1.6; }

/* ── Project card stack ── */
.project-card__stack {
    font-size: .8rem; color: var(--color-accent);
    margin-bottom: 12px; font-weight: 500;
}

.project-card--featured {
    border-color: var(--color-accent);
    background: rgba(108,99,255,.05);
}

/* ── Page hero sub ── */
.page-hero__sub { color: var(--color-muted); margin-top: 8px; font-size: 1.05rem; }

/* ── About links ── */
.about__links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 24px; }

/* ── Contact note ── */
.contact-list__note { color: var(--color-muted); font-size: .85rem; }

/* ── Footer ── */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-muted);
    font-size: .9rem;
}

/* ── Блог ── */
.container--narrow { max-width: 720px; }

.blog-empty { color: var(--color-muted); text-align: center; }

.post-list { display: flex; flex-direction: column; gap: 40px; max-width: 720px; }

.post-card__date { color: var(--color-muted); font-size: .85rem; text-transform: lowercase; }

.post-card__title { font-size: 1.5rem; margin: 8px 0; line-height: 1.3; }
.post-card__title a { color: var(--color-text); }
.post-card__title a:hover { color: var(--color-accent); }

.post-card__desc { color: var(--color-muted); margin-bottom: 12px; }

.post-card__tags { display: flex; gap: 8px; flex-wrap: wrap; }

.tag {
    font-size: .75rem;
    color: var(--color-accent);
    background: rgba(108, 99, 255, .12);
    border-radius: 100px;
    padding: 4px 12px;
}

.post__header { margin-bottom: 40px; }
.post__date { color: var(--color-muted); font-size: .9rem; }
.post__title { font-size: 2.2rem; line-height: 1.2; margin: 12px 0 16px; }

.post__body { font-size: 1.05rem; line-height: 1.75; }
.post__body h2 { font-size: 1.5rem; margin: 40px 0 16px; }
.post__body h3 { font-size: 1.2rem; margin: 32px 0 12px; }
.post__body p { margin-bottom: 20px; }
.post__body ul, .post__body ol { margin: 0 0 20px 24px; }
.post__body li { margin-bottom: 8px; }
.post__body strong { color: var(--color-text); }
.post__body img { max-width: 100%; border-radius: var(--radius); }

.post__body blockquote {
    border-left: 3px solid var(--color-accent);
    padding-left: 20px;
    margin: 0 0 20px;
    color: var(--color-muted);
}

.post__body code {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 2px 6px;
    font-size: .9em;
}

.post__body pre {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
    overflow-x: auto;
    margin-bottom: 20px;
}

.post__body pre code { background: none; border: none; padding: 0; }

.post__body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    font-size: .95rem;
}

.post__body th, .post__body td {
    border: 1px solid var(--color-border);
    padding: 10px 14px;
    text-align: left;
}

.post__body th { background: var(--color-bg-alt); }

.post__footer { margin-top: 56px; }

/* ── Страницы ошибок ── */
.error { text-align: center; }

.error__code {
    font-size: clamp(4rem, 12vw, 7rem);
    font-weight: 700; line-height: 1;
    letter-spacing: -3px;
    color: var(--color-accent);
}

.error__title {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 700; margin-top: 8px;
}

.error__text {
    color: var(--color-muted);
    margin: 16px auto 32px; max-width: 520px;
}

.error__actions { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }

/* ── Mobile ── */
@media (max-width: 768px) {
    .nav__links {
        display: none; flex-direction: column;
        position: absolute; top: 64px; left: 0; right: 0;
        background: var(--color-bg-alt);
        border-bottom: 1px solid var(--color-border);
        padding: 16px 24px;
    }

    .nav__links.open { display: flex; }
    .nav__burger { display: flex; }

    .hero__inner { grid-template-columns: 1fr; text-align: center; }
    .hero__photo { display: none; }
    .hero__actions { justify-content: center; }

    .timeline__item { grid-template-columns: 1fr; gap: 4px; }
    .timeline__period { font-size: .8rem; }

    .about { grid-template-columns: 1fr; }
    .about__photo { display: none; }

    .contacts { grid-template-columns: 1fr; }
}