@font-face { font-family: Montserrat; src: url(../fonts/Montserrat-Regular.woff2) format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: Montserrat; src: url(../fonts/Montserrat-Medium.woff2) format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: Montserrat; src: url(../fonts/Montserrat-SemiBold.woff2) format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: Montserrat; src: url(../fonts/Montserrat-Bold.woff2) format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: Montserrat; src: url(../fonts/Montserrat-ExtraBold.woff2) format("woff2"); font-weight: 800; font-display: swap; }
@font-face { font-family: "Open Sans"; src: url(../fonts/OpenSans-Regular.woff2) format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Open Sans"; src: url(../fonts/OpenSans-SemiBold.woff2) format("woff2"); font-weight: 600; font-display: swap; }

:root {
    --bg: #f6f6f4;
    --bg-alt: #ecece8;
    --surface: #ffffff;
    --ink: #161616;
    --ink-2: #4a4a47;
    --ink-3: #7c7c78;
    --line: #dcdcd6;
    --dark: #161616;
    --dark-2: #222220;
    --on-dark: #f4f4f1;
    --on-dark-2: #a9a9a3;
    --accent: #1f9d55;
    --accent-ink: #137a40;
    --radius: 18px;
    --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.06);
    --header-h: 64px;
    --head: Montserrat, system-ui, sans-serif;
    --body: "Open Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 16px/1.6 var(--body); overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--head); margin: 0; line-height: 1.2; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.container { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 16px; }
.icon { width: 22px; height: 22px; flex: none; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    min-height: 48px; padding: 0 26px; border: 0; border-radius: 999px;
    background: var(--accent); color: #fff; font: 600 15px var(--head); text-decoration: none; cursor: pointer;
    transition: background .2s, transform .2s;
}
.btn:hover { background: var(--accent-ink); }
.btn:active { transform: translateY(1px); }
.btn--small { min-height: 40px; padding: 0 20px; font-size: 14px; }
.btn--light { background: var(--on-dark); color: var(--dark); }
.btn--light:hover { background: #fff; }
.btn[disabled] { opacity: .6; cursor: progress; }

/* Header */
.header { position: fixed; inset: 0 0 auto; z-index: 50; height: var(--header-h); background: rgba(22,22,22,.86); backdrop-filter: saturate(160%) blur(12px); -webkit-backdrop-filter: saturate(160%) blur(12px); color: var(--on-dark); }
.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 600 16px var(--head); }
.logo__mark { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: var(--accent); color: #fff; font-weight: 800; font-size: 14px; letter-spacing: .5px; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a:not(.btn) { color: var(--on-dark-2); text-decoration: none; font: 500 15px var(--head); transition: color .2s; }
.nav a:not(.btn):hover { color: var(--on-dark); }
.burger { display: none; }

@media (max-width: 860px) {
    .logo__name { display: none; }
    .burger { display: grid; place-items: center; width: 44px; height: 44px; margin-right: -8px; padding: 0; border: 0; background: none; cursor: pointer; }
    .burger span, .burger span::before, .burger span::after { display: block; width: 22px; height: 2px; border-radius: 2px; background: var(--on-dark); transition: transform .25s, background .25s; content: ""; }
    .burger span { position: relative; }
    .burger span::before { position: absolute; top: -7px; }
    .burger span::after { position: absolute; top: 7px; }
    .burger[aria-expanded="true"] span { background: transparent; }
    .burger[aria-expanded="true"] span::before { transform: translateY(7px) rotate(45deg); }
    .burger[aria-expanded="true"] span::after { transform: translateY(-7px) rotate(-45deg); }
    .nav {
        position: fixed; top: var(--header-h); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
        padding: 8px 16px 20px; background: var(--dark); border-top: 1px solid #2c2c2a;
        transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s;
    }
    .nav.is-open { transform: none; opacity: 1; visibility: visible; }
    .nav a:not(.btn) { padding: 14px 0; font-size: 17px; border-bottom: 1px solid #2c2c2a; color: var(--on-dark); }
    .nav .btn { margin-top: 16px; min-height: 48px; }
}

/* Hero */
.hero { background: radial-gradient(120% 90% at 85% 10%, #2e2e2b 0%, var(--dark) 60%); color: var(--on-dark); padding: calc(var(--header-h) + 40px) 0 40px; }
.hero__inner { display: grid; gap: 32px; align-items: center; }
.hero__hello { font: 500 18px var(--head); color: var(--on-dark-2); }
.hero__name { font-size: clamp(38px, 9vw, 72px); font-weight: 800; letter-spacing: -.02em; margin: 6px 0 10px; }
.hero__role { display: inline-block; padding: 6px 14px; border-radius: 999px; background: rgba(31,157,85,.16); color: #5fd894; font: 600 14px var(--head); }
.hero__tagline { margin-top: 20px; max-width: 560px; color: var(--on-dark-2); font-size: 17px; }
.hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 20px; margin-top: 28px; }
.socials { display: flex; gap: 10px; }
.socials__link { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; background: var(--dark-2); color: var(--on-dark); border: 1px solid #333330; transition: background .2s, color .2s, transform .2s; }
.socials__link:hover { background: var(--on-dark); color: var(--dark); transform: translateY(-2px); }
.hero__photo { justify-self: start; position: relative; width: min(240px, 64vw); aspect-ratio: 4 / 5; order: -1; }
.hero__photo::before { content: ""; position: absolute; inset: 14px -14px -14px 14px; border-radius: 24px; border: 2px solid rgba(95,216,148,.45); }
.hero__photo img { position: relative; width: 100%; height: 100%; object-fit: cover; border-radius: 24px; box-shadow: 0 20px 50px rgba(0,0,0,.45); }

.stats { list-style: none; margin: 40px 0 0; padding: 20px 0 0; border-top: 1px solid #2c2c2a; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.stats b { display: block; font: 800 clamp(26px, 6vw, 40px) var(--head); color: #fff; }
.stats span { font-size: 13px; color: var(--on-dark-2); line-height: 1.3; display: block; }

@media (min-width: 861px) {
    .hero { padding: calc(var(--header-h) + 72px) 0 56px; }
    .hero__inner { grid-template-columns: 1.4fr 1fr; gap: 48px; }
    .hero__photo { order: 0; justify-self: end; width: 100%; max-width: 400px; margin-right: 14px; }
    .hero__photo::before { inset: 20px -20px -20px 20px; border-radius: 28px; }
    .hero__photo img { border-radius: 28px; }
    .stats { margin-top: 64px; max-width: 640px; }
}

/* Sections */
.section { padding: 64px 0; }
.section--alt { background: var(--bg-alt); }
.section--dark { background: var(--dark); color: var(--on-dark); }
.section__title { font-size: clamp(28px, 5vw, 40px); font-weight: 800; letter-spacing: -.01em; margin-bottom: 28px; }
.section__title::after { content: ""; display: block; width: 48px; height: 4px; border-radius: 2px; background: var(--accent); margin-top: 14px; }
@media (min-width: 861px) { .section { padding: 96px 0; } .section__title { margin-bottom: 40px; } }

.about { display: grid; gap: 0 48px; }
.about__text { display: grid; gap: 16px; font-size: 17px; color: var(--ink-2); max-width: 760px; }
@media (min-width: 861px) { .about { grid-template-columns: 300px 1fr; } .about__text { font-size: 18px; } }

/* Services */
.services { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 600px) { .services { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .services { grid-template-columns: repeat(3, 1fr); gap: 20px; } }
.card { display: flex; flex-direction: column; gap: 10px; padding: 26px; border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); text-decoration: none; transition: transform .25s, box-shadow .25s; }
.card:hover { transform: translateY(-3px); box-shadow: 0 1px 2px rgba(0,0,0,.04), 0 14px 32px rgba(0,0,0,.09); }
.card__icon { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; background: var(--dark); color: #5fd894; margin-bottom: 6px; }
.card__icon .icon { width: 26px; height: 26px; }
.card__title { font-size: 20px; font-weight: 700; }
.card__text { color: var(--ink-2); font-size: 15px; }
.card--cta { background: var(--accent); color: #fff; justify-content: center; }
.card--cta .card__text { color: rgba(255,255,255,.85); }
.card__arrow { font-size: 28px; line-height: 1; margin-top: 6px; transition: transform .25s; }
.card--cta:hover .card__arrow { transform: translateX(6px); }

/* Skills */
.tabs { display: flex; gap: 8px; overflow-x: auto; margin: 0 -16px 24px; padding: 2px 16px; scrollbar-width: none; }
.tabs::-webkit-scrollbar { display: none; }
.tabs__btn { flex: none; min-height: 44px; padding: 0 18px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink-2); font: 600 14px var(--head); cursor: pointer; transition: all .2s; }
.tabs__btn span { margin-left: 4px; color: var(--ink-3); font-weight: 500; }
.tabs__btn:hover { border-color: var(--ink-3); }
.tabs__btn[aria-selected="true"] { background: var(--dark); border-color: var(--dark); color: #fff; }
.tabs__btn[aria-selected="true"] span { color: #5fd894; }
.skills { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr)); animation: fade .35s ease; }
.skill { display: flex; align-items: center; gap: 14px; padding: 14px 16px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); transition: border-color .2s, transform .2s; }
.skill:hover { border-color: var(--accent); transform: translateY(-2px); }
.skill__img { width: 40px; height: 40px; object-fit: contain; flex: none; }
.skill__name { font: 700 15px var(--head); }
.skill__desc { font-size: 13px; color: var(--ink-3); line-height: 1.35; }
.skills[hidden] { display: none; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } }

/* Career */
.timeline__label { font-size: 14px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 16px; }
.timeline + .timeline__label { margin-top: 48px; }
.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.job { display: grid; grid-template-columns: 56px 1fr; gap: 16px; padding: 20px; border-radius: var(--radius); background: var(--surface); box-shadow: var(--shadow); }
.job__logo { width: 56px; height: 56px; border-radius: 14px; background: var(--bg); display: grid; place-items: center; padding: 10px; }
.job__logo img { width: 100%; height: 100%; object-fit: contain; }
.job__date { font: 600 13px var(--head); color: var(--accent-ink); }
.job__title { font-size: 18px; font-weight: 700; margin-top: 4px; }
.job__org { color: var(--ink-2); font-weight: 600; margin-top: 2px; }
.job__list { margin: 12px 0 0; padding: 0; list-style: none; display: grid; gap: 6px; font-size: 15px; color: var(--ink-2); }
.job__list li { position: relative; padding-left: 18px; }
.job__list li::before { content: ""; position: absolute; left: 2px; top: .65em; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
@media (max-width: 520px) {
    .job { grid-template-columns: 1fr; gap: 12px; }
    .job__logo { width: 48px; height: 48px; }
}
@media (min-width: 861px) { .job { grid-template-columns: 72px 1fr; gap: 24px; padding: 28px; } .job__logo { width: 72px; height: 72px; padding: 12px; } }

/* Contact */
.contact { display: grid; gap: 32px; }
.contact__info > p { color: var(--on-dark-2); font-size: 17px; max-width: 460px; }
.contact__links { display: grid; gap: 10px; margin-top: 24px; }
.contact__links a { display: flex; align-items: center; gap: 12px; min-height: 48px; padding: 0 16px; border-radius: 12px; background: var(--dark-2); border: 1px solid #2f2f2c; text-decoration: none; font-weight: 600; transition: border-color .2s; }
.contact__links a:hover { border-color: #5fd894; }
.contact__links .icon { color: #5fd894; }
@media (min-width: 600px) { .contact__links { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 861px) { .contact { grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; } }

.form { display: grid; gap: 16px; padding: 24px; border-radius: var(--radius); background: var(--dark-2); border: 1px solid #2f2f2c; }
.form__field { display: grid; gap: 6px; }
.form__field span { font: 600 13px var(--head); color: var(--on-dark-2); }
.form input, .form textarea { width: 100%; padding: 13px 14px; border-radius: 12px; border: 1px solid #3a3a37; background: #1a1a18; color: var(--on-dark); font: 16px var(--body); resize: vertical; transition: border-color .2s; }
.form input:focus, .form textarea:focus { outline: none; border-color: #5fd894; }
.form .is-invalid { border-color: #e5674f; }
.form__hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form__status { min-height: 1.5em; font-size: 15px; }
.form__status.is-ok { color: #5fd894; }
.form__status.is-error { color: #ff8a73; }
@media (min-width: 861px) { .form { padding: 32px; } }

/* Footer */
.footer { background: #0f0f0e; color: var(--on-dark-2); font-size: 14px; }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; padding-top: 24px; padding-bottom: 24px; }
.footer__up { text-decoration: none; color: var(--on-dark); font-weight: 600; }

/* Scroll reveal (включается JS) */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .js .reveal { opacity: 1; transform: none; }
}