/* ============================================================
   Grifolytics – Ulm Paunel Portfolio
   Palette: navy #0b1e3b · cyan #22d3ee · gold #f4b942
   Bewusst einthemig (feste Markenwelt: helle Inhalte,
   dunkler Hero/Kontakt). Keine externen Fonts (DSGVO/CSP).
   ============================================================ */
:root{
  /* Marke */
  --navy:#0b1e3b; --navy-2:#12305a; --ink:#081527;
  --cyan:#22d3ee; --cyan-d:#0ea5c4; --cyan-ink:#0b7285; --gold:#f4b942;
  /* Navy-getönte Neutraltöne (bewusst gewählt, kein reines Grau) */
  --paper:#eef2f8; --card:#ffffff; --line:#dbe3ee;
  --text:#16243c; --muted:#57697f; --text-inv:#e9f1fb;
  /* Elevation – weiche, navy-getönte Schatten */
  --shadow:0 6px 20px rgba(11,30,59,.08);
  --shadow-lg:0 22px 55px rgba(11,30,59,.16);
  --ring:0 0 0 3px rgba(34,211,238,.28);
  /* Form & Rhythmus */
  --radius:16px; --radius-sm:10px;
  --maxw:1160px;
  --section-y:clamp(64px,8vw,104px);
  --ease:cubic-bezier(.22,.61,.36,1);
  /* Schrift – kuratierter System-Stack + Mono für Daten/Technik */
  --font:"Segoe UI Variable Display","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono:"Cascadia Code","SF Mono",ui-monospace,Consolas,"Liberation Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);color:var(--text);background:var(--paper);
  line-height:1.62;letter-spacing:.002em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  font-feature-settings:"kern" 1,"liga" 1;
}
img{max-width:100%;display:block}
a{color:var(--cyan-ink);text-decoration:none;transition:color .18s var(--ease)}
a:hover{text-decoration:underline;text-underline-offset:3px}

h1,h2,h3{line-height:1.16;color:var(--navy);font-weight:800;letter-spacing:-.018em;text-wrap:balance}
p{text-wrap:pretty}

/* Auswahl & Fokus (Barrierefreiheit) */
::selection{background:var(--cyan);color:var(--navy)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

/* Dezente Scrollbar in Markenfarbe */
*{scrollbar-width:thin;scrollbar-color:#b9c6d8 transparent}
*::-webkit-scrollbar{width:11px;height:11px}
*::-webkit-scrollbar-thumb{background:#b9c6d8;border:3px solid transparent;background-clip:content-box;border-radius:999px}
*::-webkit-scrollbar-thumb:hover{background:#93a7c0;background-clip:content-box}

section{padding:var(--section-y) 0}
section[id]{scroll-margin-top:84px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%}

/* Eyebrow: kurze Marker-Linie encodiert „Abschnitt" */
.eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--cyan-ink);
  font-weight:700;text-transform:uppercase;letter-spacing:.16em;font-size:.78rem;margin-bottom:12px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--cyan);border-radius:2px;flex:none}
.section-title{font-size:clamp(1.7rem,3.4vw,2.4rem);margin-bottom:14px;max-width:30ch}
.lead{color:var(--muted);font-size:1.06rem;max-width:66ch;line-height:1.7}

/* ---------- Header / Nav ---------- */
.site-header{position:fixed;inset:0 0 auto 0;z-index:50;padding:18px 0;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),padding .3s var(--ease)}
.site-header.scrolled{background:rgba(9,21,39,.86);backdrop-filter:blur(12px) saturate(1.2);
  box-shadow:0 1px 0 rgba(255,255,255,.06),0 12px 30px rgba(0,0,0,.28);padding:10px 0}
.nav{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:800;font-size:1.2rem;letter-spacing:.01em}
.brand:hover{text-decoration:none}
.brand .logo{width:38px;height:38px;filter:drop-shadow(0 4px 10px rgba(34,211,238,.35))}
.brand small{display:block;font-weight:600;font-size:.64rem;letter-spacing:.24em;text-transform:uppercase;color:var(--cyan)}
.nav-links{display:flex;gap:28px;align-items:center;list-style:none}
.nav-links a{position:relative;color:var(--text-inv);font-weight:600;font-size:.95rem;opacity:.88;padding:4px 0}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-2px;height:2px;background:var(--cyan);transition:right .25s var(--ease)}
.nav-links a:hover{color:#fff;opacity:1;text-decoration:none}
.nav-links a:hover::after{right:0}
.nav-cta{background:var(--cyan);color:var(--navy)!important;padding:10px 18px;border-radius:999px;font-weight:700;
  box-shadow:0 8px 20px rgba(34,211,238,.30);transition:transform .15s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease)}
.nav-cta::after{display:none}
.nav-cta:hover{background:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 10px 26px rgba(34,211,238,.42)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:26px;height:3px;background:#fff;border-radius:3px;margin:5px 0;transition:.3s var(--ease)}

/* ---------- Hero ---------- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;
  background:linear-gradient(rgba(8,18,38,.52),rgba(8,18,38,.80)),url('../img/hero-frankfurt-data.svg');
  background-size:cover;background-position:center bottom;color:#fff;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(120% 80% at 15% 20%,rgba(34,211,238,.10),transparent 55%)}
.hero .wrap{position:relative;z-index:2;padding-top:132px;padding-bottom:84px}
.hero h1{color:#fff;font-size:clamp(2.4rem,5.6vw,4.1rem);letter-spacing:-.03em;margin-bottom:10px;max-width:16ch}
.hero .role{color:var(--cyan);font-weight:700;font-size:clamp(1.05rem,2.4vw,1.5rem);letter-spacing:-.01em;margin-bottom:22px}
.hero p.intro{max-width:58ch;color:#cfe0f2;font-size:clamp(1.02rem,1.4vw,1.16rem);line-height:1.72;margin-bottom:30px}
.hero .location{display:inline-flex;align-items:center;gap:8px;color:#bcd0e8;font-weight:600;margin-bottom:28px}
.hero .location svg{width:18px;height:18px;fill:var(--gold)}
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 28px;border-radius:999px;font-weight:700;font-size:1rem;
  border:2px solid transparent;cursor:pointer;transition:transform .15s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary{background:var(--cyan);color:var(--navy);box-shadow:0 12px 30px rgba(34,211,238,.34)}
.btn-primary:hover{background:#fff;box-shadow:0 16px 38px rgba(34,211,238,.44)}
.btn-ghost{border-color:rgba(255,255,255,.45);color:#fff}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(34,211,238,.12)}
.hero .float{position:absolute;border-radius:50%;background:var(--cyan);filter:blur(1px);opacity:.7;animation:float 7s var(--ease) infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}

/* highlight ribbon */
.highlights{position:relative;z-index:2;background:rgba(9,21,39,.66);border-top:1px solid rgba(255,255,255,.08);
  backdrop-filter:blur(6px)}
.highlights .wrap{display:flex;flex-wrap:wrap;gap:12px;padding-top:22px;padding-bottom:22px;justify-content:center}
.chip{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.05);border:1px solid rgba(34,211,238,.32);
  color:#eaf6fb;padding:8px 16px;border-radius:999px;font-weight:600;font-size:.9rem;
  transition:border-color .2s var(--ease),background .2s var(--ease),transform .15s var(--ease)}
.chip:hover{border-color:rgba(34,211,238,.7);background:rgba(34,211,238,.10);transform:translateY(-1px)}
.chip b{color:var(--gold)}

/* ---------- About ---------- */
.about{background:var(--card)}
.about-grid{display:grid;grid-template-columns:280px 1fr;gap:56px;align-items:start}
.photo-card{position:relative}
.photo-card img{border-radius:var(--radius);box-shadow:var(--shadow-lg);border:5px solid #fff}
.photo-card::after{content:"";position:absolute;inset:-14px -14px auto auto;width:64px;height:64px;
  border-top:2px solid var(--cyan);border-right:2px solid var(--cyan);border-radius:0 var(--radius) 0 0;opacity:.5}
.photo-card .badge{position:absolute;bottom:-16px;left:50%;transform:translateX(-50%);background:var(--navy);color:#fff;
  padding:10px 18px;border-radius:999px;font-weight:700;font-size:.85rem;white-space:nowrap;box-shadow:var(--shadow-lg)}
.photo-card .badge b{color:var(--gold)}
.facts{list-style:none;margin-top:28px;display:grid;gap:0}
.facts li{display:flex;gap:14px;font-size:.95rem;color:var(--muted);padding:11px 0;border-top:1px solid var(--line)}
.facts li:last-child{border-bottom:1px solid var(--line)}
.facts li b{color:var(--navy);font-weight:700;min-width:132px;flex:none}
.about p{margin-bottom:16px;max-width:62ch}

/* ---------- Skills ---------- */
.skills{background:var(--paper)}
.skill-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;margin-top:40px}
.skill-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.skill-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(34,211,238,.45)}
.skill-card .ico{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--navy),var(--navy-2));margin-bottom:16px;
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.18),0 8px 18px rgba(11,30,59,.18)}
.skill-card .ico svg{width:24px;height:24px;stroke:var(--cyan);fill:none;stroke-width:2}
.skill-card h3{font-size:1.16rem;margin-bottom:14px}
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{background:#eaf1f9;color:#2a4664;border:1px solid #d8e4f1;border-radius:8px;padding:5px 11px;font-size:.82rem;font-weight:600}
.tag.key{background:var(--navy);color:#fff;border-color:var(--navy)}
.tag.key.gold{background:var(--gold);color:#3a2c05;border-color:var(--gold)}

/* ---------- Projects ---------- */
.projects{background:var(--card)}
.proj-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;margin-top:40px}
.proj-card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;position:relative;overflow:hidden;
  background:var(--card);box-shadow:var(--shadow);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.proj-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(34,211,238,.45)}
/* Zeitraum als „Daten-Node" – greift das Skyline-/Netzwerk-SVG auf */
.proj-card .period{display:inline-flex;align-items:center;gap:9px;color:var(--cyan-ink);font-family:var(--mono);
  font-weight:600;font-size:.76rem;letter-spacing:.02em;font-variant-numeric:tabular-nums;text-transform:uppercase}
.proj-card .period::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--cyan);
  box-shadow:0 0 0 3px rgba(34,211,238,.20);flex:none}
.proj-card h3{font-size:1.22rem;margin:10px 0 4px;transition:color .18s var(--ease)}
.proj-card:hover h3{color:var(--cyan-ink)}
.proj-card .client{color:#b7791f;font-weight:700;font-size:.9rem;margin-bottom:13px}
.proj-card .gold-city{color:#b7791f}
.proj-card p{color:var(--muted);font-size:.95rem;line-height:1.66;margin-bottom:16px}
.proj-card .stack{display:flex;flex-wrap:wrap;gap:6px}
.proj-card .stack span{font-family:var(--mono);font-size:.74rem;background:#eef3f9;color:#365478;
  padding:4px 9px;border-radius:6px;font-weight:500;border:1px solid #e0e9f3}

/* ---------- Certifications ---------- */
.certs{background:var(--paper)}
.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:38px}
.cert{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:20px;display:flex;gap:14px;
  align-items:center;box-shadow:var(--shadow);transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.cert:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.cert .yr{font-family:var(--mono);font-weight:700;color:var(--cyan-ink);font-size:.92rem;min-width:52px;
  font-variant-numeric:tabular-nums}
.cert .t{font-weight:600;color:var(--navy);font-size:.95rem;line-height:1.35}
/* Zertifikat-Layout (Liste + gerahmtes JBoss-Zertifikat) */
.certs-layout{display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:start;margin-top:38px}
.certs-layout .cert-grid{margin-top:0}
.cert-figure{margin:0}
.cert-frame{display:block;position:relative;padding:10px;border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;box-shadow:var(--shadow);overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease)}
.cert-frame img{width:100%;height:auto;border-radius:8px}
.cert-frame:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:rgba(34,211,238,.45)}
.cert-zoom{position:absolute;left:50%;bottom:18px;transform:translateX(-50%) translateY(6px);
  background:rgba(9,21,39,.92);color:#eaf6fb;font-size:.8rem;font-weight:600;padding:7px 15px;border-radius:999px;
  white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .2s var(--ease),transform .2s var(--ease)}
.cert-frame:hover .cert-zoom{opacity:1;transform:translateX(-50%) translateY(0)}
.cert-figure figcaption{margin-top:12px;font-size:.85rem;color:var(--muted);text-align:center;line-height:1.45}
@media (max-width:860px){
  .certs-layout{grid-template-columns:1fr;gap:32px}
  .cert-figure{max-width:460px;margin:0 auto}
}

/* ---------- Contact ---------- */
.contact{background:linear-gradient(160deg,var(--navy),var(--ink));color:#fff;position:relative;overflow:hidden}
.contact::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(90% 60% at 85% 0%,rgba(34,211,238,.12),transparent 60%)}
.contact .wrap{position:relative;z-index:1}
.contact h2{color:#fff}
.contact .eyebrow{color:var(--cyan)}
.contact .lead{color:#c6d6ea}
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:52px;margin-top:40px;align-items:start}
.contact-info{display:grid;gap:16px}
.contact-info a{color:#eaf2fb}
.ci{display:flex;gap:14px;align-items:center}
.ci .ico{width:46px;height:46px;border-radius:12px;background:rgba(34,211,238,.12);display:grid;place-items:center;flex-shrink:0;
  box-shadow:inset 0 0 0 1px rgba(34,211,238,.22)}
.ci .ico svg{width:20px;height:20px;stroke:var(--cyan);fill:none;stroke-width:2}
.ci .l{font-size:.72rem;text-transform:uppercase;letter-spacing:.12em;color:#8fb3d6;margin-bottom:2px}
.ci .v{font-weight:600;font-variant-numeric:tabular-nums}
form.card{background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:30px;
  box-shadow:0 24px 60px rgba(0,0,0,.28)}
.field{margin-bottom:16px}
.field label{display:block;font-size:.82rem;font-weight:600;margin-bottom:7px;color:#cfe0f2;letter-spacing:.01em}
.field input,.field textarea{width:100%;padding:13px 15px;border-radius:10px;border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.06);color:#fff;font-family:inherit;font-size:1rem;transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease)}
.field input::placeholder,.field textarea::placeholder{color:#8ba5c2}
.field input:hover,.field textarea:hover{border-color:rgba(255,255,255,.28)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--cyan);background:rgba(255,255,255,.08);box-shadow:var(--ring)}
.field textarea{min-height:132px;resize:vertical}
.hp{position:absolute;left:-9999px}
.consent{display:flex;gap:10px;font-size:.85rem;color:#b9cce2;margin-bottom:18px;line-height:1.5}
.consent input{margin-top:3px;accent-color:var(--cyan)}
.consent a{color:#eaf2fb;text-decoration:underline;text-underline-offset:2px}
.form-note{margin-top:14px;font-size:.83rem}
.alert{padding:14px 16px;border-radius:10px;margin-bottom:18px;font-weight:600}
.alert.ok{background:rgba(34,197,94,.15);border:1px solid #22c55e;color:#bbf7d0}
.alert.err{background:rgba(239,68,68,.15);border:1px solid #ef4444;color:#fecaca}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#9db4ce;padding:40px 0;font-size:.9rem;
  border-top:1px solid rgba(255,255,255,.06)}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
.site-footer a{color:#c6d6ea}
.site-footer a:hover{color:var(--cyan)}
.site-footer .fnav{display:flex;gap:22px;flex-wrap:wrap}

/* ---------- Legal pages ---------- */
.legal{padding-top:148px;background:var(--card);min-height:80vh}
.legal .wrap{max-width:820px}
.legal h1{font-size:2rem;margin-bottom:8px}
.legal h2{font-size:1.2rem;margin:30px 0 10px}
.legal p,.legal li{color:var(--muted);margin-bottom:10px;line-height:1.7}
.legal ul{padding-left:20px}
.legal .back{display:inline-block;margin-bottom:24px;font-weight:600}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .nav-toggle{display:block}
  .nav-links{position:fixed;inset:64px 0 auto 0;flex-direction:column;background:rgba(9,21,39,.98);padding:20px 24px;gap:6px;
    transform:translateY(-140%);transition:transform .3s var(--ease);box-shadow:0 20px 40px rgba(0,0,0,.4)}
  .nav-links.open{transform:none}
  .nav-links a{display:block;padding:12px 0;width:100%;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav-links a::after{display:none}
  .about-grid{grid-template-columns:1fr;gap:48px;justify-items:center;text-align:left}
  .photo-card{max-width:260px}
  .photo-card::after{display:none}
  .contact-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:480px){
  .hero .wrap{padding-top:112px}
  .facts li{flex-direction:column;gap:2px}
  .facts li b{min-width:0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}