:root {
    --ink:        #0e1116;   /* deep near-black ink */
    --ink-2:      #161b22;   /* raised surface */
    --line:       #2a313c;   /* hairlines */
    --paper:      #e8ecf1;   /* primary text */
    --muted:      #9aa6b2;   /* secondary text */
    --accent:     #e0142b;   /* brand red — brightened for dark bg legibility */
    --accent-dim: #a80f20;   /* deeper red for lines/hover */
    --accent-hi:  #ff2f44;   /* hover lift */
    --maxw:       1080px;
    --r:          10px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
    margin: 0;
    background: var(--ink);
    color: var(--paper);
    font-family: "Space Grotesk", system-ui, sans-serif;
    font-size: 17px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.skip {
    position: absolute; left: -999px; top: 0;
    background: var(--accent); color: var(--ink); padding: 10px 16px; z-index: 100;
}
.skip:focus { left: 12px; top: 12px; }

a { color: var(--accent); text-decoration: none; }

/* ---- header ---- */
.site-head {
    position: sticky; top: 0; z-index: 50;
    background: rgba(14,17,22,.82);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
}
.head-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; }
.brand-logo { height: 40px; width: auto; display: block; }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a { color: var(--muted); font-size: 15px; }
.nav a:hover { color: var(--paper); }

/* language switcher */
.nav-lang { display: inline-flex; gap: 8px; align-items: center; padding-left: 20px; margin-left: 4px; border-left: 1px solid var(--line); }
.nav-lang a { font-family: "JetBrains Mono", monospace; font-size: 13px; letter-spacing: .05em; }
.nav-lang a.lang-active { color: var(--accent); }

/* mobile menu toggle — hidden on desktop */
.nav-toggle { display: none; }
.nav-burger { display: none; }

/* ---- hero ---- */
.hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-inner { position: relative; padding: 96px 24px 110px; z-index: 1; }
/* pointer-events: none — the canvas overlays the CTA buttons and would swallow their clicks */
.hero-graph { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: .5; pointer-events: none; }
.eyebrow, .section-eyebrow {
    font-family: "JetBrains Mono", monospace;
    font-size: 13px; letter-spacing: .12em; color: var(--accent);
    margin: 0 0 18px; text-transform: uppercase;
}
.hero h1 {
    font-size: clamp(2.4rem, 6vw, 4rem); line-height: 1.04; letter-spacing: -.03em;
    margin: 0 0 22px; font-weight: 700; max-width: 16ch;
}
.lede { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--muted); max-width: 56ch; margin: 0 0 32px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.btn { display: inline-block; padding: 13px 24px; border-radius: var(--r); font-weight: 500; font-size: 15px; border: 1px solid transparent; cursor: pointer; transition: transform .12s ease, background .2s ease; font-family: inherit; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--ink); }
.btn-primary:hover { background: var(--accent-hi); }
.btn-ghost { border-color: var(--line); color: var(--paper); }
.btn-ghost:hover { border-color: var(--accent); }

/* ---- sections ---- */
.section { padding: 88px 0; border-bottom: 1px solid var(--line); }
.section-alt { background: var(--ink-2); }
.section h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -.02em; margin: 8px 0 40px; font-weight: 700; }

.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.cards .card:last-child:nth-child(odd) { grid-column: 1 / -1; }
.card { background: var(--ink); padding: 32px 28px; }
.section-alt .card { background: var(--ink-2); }
.card h3 { font-size: 1.2rem; margin: 0 0 12px; color: var(--paper); }
.card h3::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); margin-right: 10px; vertical-align: middle; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }
.card-more { margin-top: 14px !important; }
.card-more a { font-family: "JetBrains Mono", monospace; font-size: 13.5px; color: var(--accent); }

/* ---- profile ---- */
.profil-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: start; }
.profil-text { color: var(--muted); }
.stack { list-style: none; margin: 8px 0 0; padding: 0; border: 1px solid var(--line); border-radius: var(--r); background: var(--ink); }
.stack li { padding: 16px 20px; border-bottom: 1px solid var(--line); font-family: "JetBrains Mono", monospace; font-size: 13.5px; color: var(--muted); }
.stack li:last-child { border-bottom: 0; }
.stack li span { display: inline-block; min-width: 110px; color: var(--accent); }

/* ---- timeline / Werdegang ---- */
.timeline { list-style: none; margin: 8px 0 0; padding: 0; }
.timeline li {
    display: grid; grid-template-columns: 160px 1fr; gap: 24px;
    padding: 20px 0; border-bottom: 1px solid var(--line); align-items: baseline;
}
.timeline li:last-child { border-bottom: 0; }
.tl-when { font-family: "JetBrains Mono", monospace; font-size: 13.5px; color: var(--accent); white-space: nowrap; }
.tl-what { color: var(--muted); font-size: 16px; }
.tl-what strong { color: var(--paper); font-weight: 500; }

/* ---- contact ---- */
.contact-wrap { max-width: 620px; }
.contact-form { margin-top: 28px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; font-family: "JetBrains Mono", monospace; letter-spacing: .04em; }
.field input, .field textarea {
    width: 100%; padding: 12px 14px; background: var(--ink-2); border: 1px solid var(--line);
    border-radius: var(--r); color: var(--paper); font-family: inherit; font-size: 15px; resize: vertical;
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.form-status { margin: 16px 0 0; font-family: "JetBrains Mono", monospace; font-size: 14px; min-height: 1.2em; }
.form-status.ok { color: var(--accent); }
.form-status.err { color: #ff7a7a; }
/* honeypot — off-screen, not display:none (harder for bots to detect) */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* ---- article / service detail page ---- */
.article { padding-top: 48px; }
.article-wrap { max-width: 760px; }
.article h1 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); letter-spacing: -.02em; margin: 10px 0 20px; font-weight: 700; line-height: 1.1; }
.article h2 { font-size: 1.4rem; margin: 44px 0 12px; font-weight: 700; letter-spacing: -.01em; }
.article h3 { font-size: 1.1rem; margin: 28px 0 8px; color: var(--paper); font-weight: 500; }
.article h3::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); margin-right: 10px; vertical-align: middle; }
.article p { color: var(--muted); margin: 0 0 14px; }
.article .lede { font-size: 1.15rem; margin-bottom: 8px; }
.article-cta { margin: 48px 0 8px; padding: 32px; background: var(--ink-2); border: 1px solid var(--line); border-radius: var(--r); }
.article-cta h2 { margin-top: 0; }
.article-cta .btn { margin-top: 8px; margin-right: 10px; }

/* ---- error / 404 page ---- */
.error-page { padding-top: 100px; min-height: 60vh; }
.error-wrap { max-width: 620px; }
.error-code { font-family: "JetBrains Mono", monospace; font-size: clamp(3rem, 12vw, 6rem); font-weight: 500; color: var(--accent); line-height: 1; margin: 0 0 8px; }
.error-page h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); letter-spacing: -.02em; margin: 0 0 16px; font-weight: 700; }

/* ---- footer ---- */
.site-foot { padding: 28px 0; }
.foot-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 24px; align-items: center; color: var(--muted); font-size: 14px; }
.foot-links { display: flex; gap: 20px; }
.foot-links a { color: var(--muted); }
.foot-links a:hover { color: var(--accent); }
.foot-meta { font-family: "JetBrains Mono", monospace; font-size: 12.5px; letter-spacing: .04em; }

/* ---- legal pages ---- */
.legal { padding-top: 56px; }
.legal-wrap { max-width: 760px; }
.legal h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -.02em; margin: 8px 0 8px; font-weight: 700; }
.legal h2 { font-size: 1.15rem; margin: 36px 0 10px; color: var(--paper); font-weight: 500; }
.legal p { color: var(--muted); margin: 0 0 12px; }
.legal-note { font-family: "JetBrains Mono", monospace; font-size: 13.5px; color: var(--accent); margin-bottom: 8px; }
.legal a { color: var(--accent); }
.legal .ph { color: #ffb3bd; background: rgba(224,20,43,.08); padding: 1px 6px; border-radius: 4px; font-size: .95em; }
.legal-back { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }

/* ---- responsive ---- */
@media (max-width: 860px) {
    /* burger menu */
    .nav-burger {
        display: flex; flex-direction: column; justify-content: center; gap: 5px;
        width: 44px; height: 44px; cursor: pointer; z-index: 60;
    }
    .nav-burger span { display: block; height: 2px; width: 24px; background: var(--paper); transition: transform .25s ease, opacity .2s ease; }
    .nav {
        position: fixed; inset: 64px 0 auto 0;
        flex-direction: column; align-items: flex-start; gap: 0;
        background: var(--ink-2); border-bottom: 1px solid var(--line);
        padding: 8px 0; max-height: 0; overflow: hidden;
        transition: max-height .3s ease; gap: 0;
    }
    .nav a { width: 100%; padding: 14px 24px; font-size: 16px; }
    .nav-toggle:checked ~ .nav { max-height: 380px; }
    .nav-toggle:checked ~ .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle:checked ~ .nav-burger span:nth-child(2) { opacity: 0; }
    .nav-toggle:checked ~ .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .nav-lang { padding: 10px 24px 6px; margin: 0; border-left: 0; border-top: 1px solid var(--line); width: 100%; }
}

@media (max-width: 760px) {
    .cards { grid-template-columns: 1fr; }
    .cards .card:last-child:nth-child(odd) { grid-column: auto; }
    .profil-grid { grid-template-columns: 1fr; gap: 32px; }
    .timeline li { grid-template-columns: 1fr; gap: 4px; }
    .hero-inner { padding: 64px 24px 80px; }
    .foot-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 420px) {
    body { font-size: 16px; }
    .wrap { padding: 0 18px; }
    .hero h1 { font-size: 2.1rem; }
    .brand-logo { height: 34px; }
    .section { padding: 60px 0; }
    .btn { padding: 12px 20px; }
    .hero-cta { flex-direction: column; align-items: stretch; }
    .hero-cta .btn { text-align: center; }
}