/* ══════════════════════════════════════════════════════
   Lena Huber – CV / About Me  ·  style.css
   Font: Inter + Syne  ·  Accent: #6366f1 (Indigo)
══════════════════════════════════════════════════════ */

/* ── Design Tokens ──────────────────────────────────── */
:root {
  --bg:        #0b0f1a;
  --bg2:       #0f1322;
  --surface:   #131929;
  --surface2:  #1a2035;
  --border:    #1e2740;
  --border-l:  #232d48;
  --text:      #e8ecf4;
  --text-2:    #8892aa;
  --text-3:    #4d5a75;
  --accent:    #6366f1;
  --accent-l:  #818cf8;
  --accent-bg: rgba(99,102,241,0.1);
  --accent-glow: rgba(99,102,241,0.25);
  --nav-bg:    rgba(11,15,26,0.88);
  --shadow:    0 2px 16px rgba(0,0,0,0.35);
  --shadow-lg: 0 16px 56px rgba(0,0,0,0.5);
  --radius:    12px;
  --radius-lg: 20px;
  --transition: 0.25s ease;
}
[data-theme="light"] {
  --bg:        #f5f6fa;
  --bg2:       #eef0f7;
  --surface:   #ffffff;
  --surface2:  #f0f2f9;
  --border:    #e0e3ef;
  --border-l:  #eceef8;
  --text:      #111827;
  --text-2:    #4b5563;
  --text-3:    #9ca3af;
  --accent:    #4f46e5;
  --accent-l:  #6366f1;
  --accent-bg: rgba(79,70,229,0.08);
  --accent-glow: rgba(79,70,229,0.18);
  --nav-bg:    rgba(245,246,250,0.9);
  --shadow:    0 2px 12px rgba(0,0,0,0.07);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
}

/* ── Reset & Base ───────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;font-size:16px;}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.65;-webkit-font-smoothing:antialiased;
  transition:background .3s,color .3s;
}
img{display:block;max-width:100%;}
a{color:var(--accent);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--accent-l);}
ul{list-style:none;}
button,input,select,textarea{font-family:inherit;}
textarea{resize:vertical;}

.container{max-width:1160px;margin:0 auto;padding:0 2rem;}
.section{padding:88px 0;}
.section-alt{background:var(--bg2);}

/* ── Eyebrow / Header ───────────────────────────────── */
.eyebrow{
  display:inline-block;font-size:.7rem;font-weight:700;
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--accent);margin-bottom:.65rem;
}
.section-title{
  font-family:'Syne',sans-serif;
  font-size:clamp(1.75rem,3vw,2.4rem);font-weight:800;
  letter-spacing:-.03em;line-height:1.15;margin-bottom:.75rem;
}
.section-sub{font-size:1rem;color:var(--text-2);margin-bottom:0;}
.section-header{text-align:center;margin-bottom:3.5rem;}
.block-label{font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);margin-bottom:1.25rem;}

/* ── Buttons ────────────────────────────────────────── */
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:10px;border:none;cursor:pointer;
  background:var(--accent);color:#fff;
  font-size:.875rem;font-weight:600;
  transition:var(--transition);
  text-decoration:none;
}
.btn-primary:hover{background:var(--accent-l);color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px var(--accent-glow);}
.btn-primary svg{width:16px;height:16px;}
.btn-primary.btn-full{width:100%;justify-content:center;}

.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:10px;cursor:pointer;
  background:transparent;color:var(--text);
  font-size:.875rem;font-weight:600;
  border:1.5px solid var(--border-l);
  transition:var(--transition);text-decoration:none;
}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-bg);}
.btn-ghost svg{width:16px;height:16px;}

/* ── Scroll Reveal ──────────────────────────────────── */
.reveal-up{opacity:0;transform:translateY(32px);transition:opacity .55s ease,transform .55s ease;}
.reveal-up.visible{opacity:1;transform:none;}

/* ════════════════════════════════════════════════════
   NAV
════════════════════════════════════════════════════ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:900;
  background:var(--nav-bg);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  transition:top .3s,background .3s,border-color .3s;
}
body.has-demo-banner .nav{top:74px;}
@media(max-width:768px){body.has-demo-banner .nav{top:92px;}}

.nav-inner{
  max-width:1160px;margin:0 auto;padding:0 2rem;
  display:flex;align-items:center;gap:2rem;height:62px;
}
.nav-logo{
  display:flex;align-items:center;gap:10px;
  font-size:.95rem;font-weight:700;color:var(--text);
  flex-shrink:0;text-decoration:none;
}
.nav-logo-initials{
  width:34px;height:34px;border-radius:9px;
  background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:.78rem;font-weight:800;letter-spacing:.02em;flex-shrink:0;
}
.nav-logo-name{letter-spacing:-.01em;}

.nav-links{display:flex;align-items:center;gap:.1rem;margin-left:auto;}
.nav-a{
  padding:7px 13px;border-radius:8px;
  font-size:.84rem;font-weight:500;color:var(--text-2);
  transition:var(--transition);text-decoration:none;display:block;
}
.nav-a:hover{color:var(--text);background:var(--surface2);}
.nav-a.active{color:var(--accent);font-weight:600;}

.nav-right{display:flex;align-items:center;gap:10px;}
.nav-badge{
  font-size:.7rem;font-weight:600;letter-spacing:.06em;
  background:rgba(34,197,94,.12);color:#4ade80;
  border:1px solid rgba(34,197,94,.25);
  padding:4px 10px;border-radius:20px;
  display:flex;align-items:center;gap:5px;white-space:nowrap;
}
.theme-toggle{
  width:36px;height:36px;border-radius:9px;border:1px solid var(--border-l);
  background:var(--surface2);cursor:pointer;color:var(--text-2);
  display:flex;align-items:center;justify-content:center;transition:var(--transition);
}
.theme-toggle:hover{color:var(--accent);border-color:var(--accent);}
.theme-toggle svg{width:16px;height:16px;}
.icon-sun{display:block;}
.icon-moon{display:none;}
[data-theme="light"] .icon-sun{display:none;}
[data-theme="light"] .icon-moon{display:block;}

.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px;}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:var(--transition);}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px);}

.mobile-drawer{
  display:none;flex-direction:column;
  background:var(--surface);border-top:1px solid var(--border);
  padding:.75rem 2rem;
}
.mobile-drawer.open{display:flex;}
.mobile-drawer li{border-bottom:1px solid var(--border);}
.mobile-drawer .nav-a{padding:12px 0;border-radius:0;}

/* ════════════════════════════════════════════════════
   HERO
════════════════════════════════════════════════════ */
.hero{
  min-height:100vh;display:flex;align-items:center;
  position:relative;overflow:hidden;
  margin-top:62px;padding:80px 0 60px;
}
body.has-demo-banner .hero{margin-top:136px;}
@media(max-width:768px){body.has-demo-banner .hero{margin-top:154px;}}

.hero-bg-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(var(--border) 1px,transparent 1px),
    linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.35;
  mask-image:radial-gradient(ellipse 80% 70% at 50% 50%,#000 30%,transparent 100%);
}

.hero-layout{
  display:grid;grid-template-columns:1fr auto;
  align-items:center;gap:4rem;
  max-width:1160px;margin:0 auto;padding:0 2rem;
}
.available-pill{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.75rem;font-weight:600;letter-spacing:.06em;
  background:rgba(34,197,94,.1);color:#4ade80;
  border:1px solid rgba(34,197,94,.22);
  padding:5px 14px;border-radius:20px;margin-bottom:1.5rem;
}
.avail-dot{
  width:7px;height:7px;border-radius:50%;
  background:#4ade80;
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.5;transform:scale(.8);}}

.hero-name{
  font-family:'Syne',sans-serif;
  font-size:clamp(2.8rem,6vw,5rem);font-weight:800;
  letter-spacing:-.04em;line-height:1;
  margin-bottom:.6rem;
}
.hero-title{
  font-size:clamp(1rem,2vw,1.35rem);font-weight:500;
  color:var(--accent-l);margin-bottom:1rem;
  letter-spacing:-.01em;
}
.hero-tagline{
  font-size:1.05rem;color:var(--text-2);
  max-width:520px;line-height:1.7;margin-bottom:1.5rem;
}
.hero-meta{
  display:flex;align-items:center;gap:.5rem;
  font-size:.85rem;color:var(--text-3);margin-bottom:2rem;
}
.hero-meta-sep{opacity:.4;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:2.5rem;}

.hero-stats{
  display:flex;gap:2rem;padding-top:2rem;
  border-top:1px solid var(--border);
}
.hero-stat{display:flex;flex-direction:column;gap:3px;}
.hero-stat-value{
  font-family:'Syne',sans-serif;
  font-size:1.6rem;font-weight:800;
  color:var(--accent-l);letter-spacing:-.03em;line-height:1;
}
.hero-stat-label{font-size:.75rem;color:var(--text-3);}

/* Photo */
.hero-photo-wrap{
  position:relative;width:280px;height:280px;flex-shrink:0;
}
.hero-photo-ring,.hero-photo-ring2{
  position:absolute;border-radius:50%;
}
.hero-photo-ring{
  inset:-14px;border:1.5px solid var(--border-l);
  animation:spin 20s linear infinite;
}
.hero-photo-ring2{
  inset:-28px;border:1px dashed var(--border);opacity:.4;
  animation:spin 30s linear infinite reverse;
}
@keyframes spin{to{transform:rotate(360deg);}}
.hero-photo{
  width:280px;height:280px;border-radius:50%;
  object-fit:cover;object-position:top center;
  border:3px solid var(--border-l);
  box-shadow:0 0 0 8px var(--accent-bg),var(--shadow-lg);
  position:relative;z-index:1;
}
.hero-photo-badge{
  position:absolute;bottom:16px;right:-8px;z-index:2;
  background:var(--accent);color:#fff;
  width:64px;height:64px;border-radius:50%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  font-size:.65rem;font-weight:800;letter-spacing:.04em;text-align:center;line-height:1.2;
  box-shadow:0 4px 16px var(--accent-glow),var(--shadow);
  border:3px solid var(--bg);
}

.hero-scroll-hint{
  position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;
  font-size:.68rem;letter-spacing:.12em;text-transform:uppercase;color:var(--text-3);
}
.scroll-line{
  width:1px;height:36px;background:linear-gradient(to bottom,var(--text-3),transparent);
}

/* ════════════════════════════════════════════════════
   ÜBER MICH
════════════════════════════════════════════════════ */
.ueber-layout{
  display:grid;grid-template-columns:340px 1fr;
  gap:3rem;align-items:start;
}
.steckbrief{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:2rem;
  position:sticky;top:100px;
}
.sb-table{width:100%;border-collapse:collapse;}
.sb-table tr{border-bottom:1px solid var(--border);}
.sb-table tr:last-child{border-bottom:none;}
.sb-table td{padding:9px 0;font-size:.85rem;vertical-align:top;}
.sb-key{color:var(--text-3);font-weight:500;padding-right:1rem;white-space:nowrap;width:110px;}
.sb-table a{color:var(--accent);}
.status-open{color:#4ade80;font-weight:600;font-size:.8rem;}
.status-closed{color:var(--text-3);font-weight:600;font-size:.8rem;}

.summary-text{
  font-size:.95rem;color:var(--text-2);line-height:1.8;margin-bottom:1.75rem;
}
.value-pills{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2rem;}
.vpill{
  font-size:.78rem;font-weight:500;
  background:var(--surface2);border:1px solid var(--border-l);
  padding:5px 12px;border-radius:20px;color:var(--text-2);
  transition:var(--transition);
}
.vpill:hover{border-color:var(--accent);color:var(--accent);}

/* Language bars */
.lang-block{border-top:1px solid var(--border);padding-top:1.5rem;}
.lang-row{
  display:grid;grid-template-columns:28px 90px 1fr;
  align-items:center;gap:.75rem;margin-bottom:.85rem;
}
.lang-flag{font-size:1.1rem;}
.lang-name{font-size:.83rem;font-weight:600;}
.lang-level{
  grid-column:2;grid-row:2;
  font-size:.68rem;color:var(--text-3);margin-top:-10px;
  grid-column:2/4;
}
.lang-bar-wrap{
  height:4px;background:var(--border-l);border-radius:4px;
  overflow:hidden;grid-column:3;grid-row:1;
}
.lang-bar{
  height:100%;background:var(--accent);border-radius:4px;
  width:0;transition:width 1s cubic-bezier(.4,0,.2,1);
}
.lang-bar.animated{width:var(--pct);}

/* ════════════════════════════════════════════════════
   TIMELINE (Erfahrung)
════════════════════════════════════════════════════ */
.timeline{display:flex;flex-direction:column;gap:0;}
.tl-item{display:grid;grid-template-columns:56px 1fr;gap:0 1.5rem;}
.tl-aside{display:flex;flex-direction:column;align-items:center;gap:0;}
.tl-logo{
  width:48px;height:48px;border-radius:12px;
  border:1.5px solid;
  display:flex;align-items:center;justify-content:center;
  font-size:.7rem;font-weight:800;letter-spacing:.04em;
  flex-shrink:0;
}
.tl-line{flex:1;width:2px;background:var(--border);margin:6px 0;}
.tl-item:last-child .tl-line{display:none;}

.tl-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:1.75rem;
  margin-bottom:1.5rem;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.tl-card:hover{border-color:var(--border-l);box-shadow:var(--shadow);}
.tl-card-head{
  display:flex;align-items:flex-start;justify-content:space-between;
  gap:1rem;margin-bottom:.4rem;flex-wrap:wrap;
}
.tl-role{font-size:1.05rem;font-weight:700;letter-spacing:-.01em;}
.tl-company{font-size:.85rem;font-weight:600;margin-top:2px;}
.tl-meta{display:flex;flex-direction:column;align-items:flex-end;gap:5px;flex-shrink:0;}
.tl-period{font-size:.78rem;color:var(--text-3);font-weight:500;}
.tl-badge{
  font-size:.65rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;
  background:var(--surface2);border:1px solid var(--border-l);
  color:var(--text-3);padding:3px 9px;border-radius:20px;
}
.tl-loc{font-size:.78rem;color:var(--text-3);margin-bottom:.75rem;}
.tl-desc{font-size:.875rem;color:var(--text-2);line-height:1.7;margin-bottom:1rem;}
.tl-highlights{
  display:flex;flex-direction:column;gap:.4rem;margin-bottom:1rem;
}
.tl-highlights li{
  font-size:.83rem;color:var(--text-2);
  padding-left:1.2rem;position:relative;
}
.tl-highlights li::before{
  content:'';position:absolute;left:0;top:.55em;
  width:5px;height:5px;border-radius:50%;
  background:var(--accent);opacity:.7;
}
.tl-tags{display:flex;flex-wrap:wrap;gap:.4rem;}
.tag{
  font-size:.72rem;font-weight:500;
  background:var(--accent-bg);color:var(--accent-l);
  border:1px solid rgba(99,102,241,.2);
  padding:3px 10px;border-radius:20px;
}

/* ════════════════════════════════════════════════════
   AUSBILDUNG
════════════════════════════════════════════════════ */
.edu-layout{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start;}
.edu-list{display:flex;flex-direction:column;gap:1rem;}
.edu-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:1.5rem;
  display:flex;align-items:flex-start;gap:1rem;
  transition:border-color var(--transition);
}
.edu-card:hover{border-color:var(--border-l);}
.edu-icon{
  width:44px;height:44px;border-radius:10px;border:1.5px solid;
  display:flex;align-items:center;justify-content:center;
  font-size:.7rem;font-weight:800;flex-shrink:0;
}
.edu-body{flex:1;min-width:0;}
.edu-head{display:flex;align-items:flex-start;justify-content:space-between;gap:.75rem;margin-bottom:.35rem;flex-wrap:wrap;}
.edu-degree{font-size:.95rem;font-weight:700;}
.edu-institution{font-size:.8rem;color:var(--text-3);margin-top:2px;}
.edu-period{font-size:.75rem;color:var(--text-3);white-space:nowrap;flex-shrink:0;}
.edu-field{font-size:.82rem;color:var(--text-2);margin-bottom:.4rem;}
.edu-thesis{font-size:.78rem;color:var(--text-3);font-style:italic;}

/* Certs */
.cert-grid{display:flex;flex-direction:column;gap:.75rem;}
.cert-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:1rem 1.25rem;
  display:flex;align-items:center;gap:1rem;
  transition:border-color var(--transition),transform var(--transition);
  border-left:3px solid var(--c);
}
.cert-card:hover{transform:translateX(4px);border-color:var(--border-l);}
.cert-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;}
.cert-body{flex:1;min-width:0;}
.cert-title{font-size:.85rem;font-weight:600;}
.cert-org{font-size:.75rem;color:var(--text-3);margin-top:2px;}
.cert-year{font-size:.73rem;color:var(--text-3);font-weight:500;white-space:nowrap;}

/* ════════════════════════════════════════════════════
   SKILLS
════════════════════════════════════════════════════ */
.skills-layout{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:2rem;margin-bottom:3rem;
}
.skill-group{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:1.75rem;
}
.skill-cat{
  font-size:.8rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent-l);margin-bottom:1.25rem;
}
.skill-row{margin-bottom:1.1rem;}
.skill-row:last-child{margin-bottom:0;}
.skill-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:.35rem;}
.skill-name{font-size:.85rem;font-weight:500;}
.skill-pct{font-size:.75rem;color:var(--text-3);font-weight:600;}
.skill-bar-wrap{height:5px;background:var(--border-l);border-radius:5px;overflow:hidden;}
.skill-bar{
  height:100%;width:0;border-radius:5px;
  background:linear-gradient(90deg,var(--accent),var(--accent-l));
  transition:width 1.1s cubic-bezier(.4,0,.2,1);
}

/* Interests */
.interests-block{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:1.75rem;
}
.interest-tags{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.75rem;}
.interest-tag{
  font-size:.83rem;font-weight:500;
  background:var(--surface2);border:1px solid var(--border-l);
  padding:6px 14px;border-radius:20px;color:var(--text-2);
  transition:var(--transition);
}
.interest-tag:hover{border-color:var(--accent);color:var(--accent);}

/* ════════════════════════════════════════════════════
   KONTAKT
════════════════════════════════════════════════════ */
.kontakt-section{background:var(--bg2);}
.kontakt-layout{
  display:grid;grid-template-columns:1fr 1fr;
  gap:4rem;align-items:start;
}
.kontakt-intro{font-size:.95rem;color:var(--text-2);line-height:1.75;margin-bottom:2rem;}
.kontakt-links{display:flex;flex-direction:column;gap:.75rem;}
.kontakt-link{
  display:flex;align-items:center;gap:1rem;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:1rem 1.25rem;
  transition:border-color var(--transition),transform var(--transition);
  text-decoration:none;color:inherit;
}
.kontakt-link:hover{border-color:var(--accent);transform:translateX(4px);}
.kl-icon{font-size:1.3rem;flex-shrink:0;}
.kl-label{display:block;font-size:.7rem;color:var(--text-3);font-weight:500;letter-spacing:.06em;text-transform:uppercase;}
.kl-value{display:block;font-size:.875rem;font-weight:600;color:var(--text);}

/* Form */
.kontakt-form{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:2rem;
  display:flex;flex-direction:column;gap:1.1rem;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
.form-group{display:flex;flex-direction:column;gap:.4rem;}
.form-group label{font-size:.78rem;font-weight:600;color:var(--text-2);}
.form-group input,.form-group textarea{
  padding:11px 14px;border-radius:9px;
  background:var(--bg);border:1px solid var(--border-l);
  color:var(--text);font-size:.875rem;outline:none;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.form-group input:focus,.form-group textarea:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-bg);
}
.form-group input.error,.form-group textarea.error{border-color:#f87171;}
.form-success{
  text-align:center;font-size:.875rem;font-weight:600;
  color:#4ade80;padding:.75rem;border-radius:8px;
  background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.2);
}

/* ════════════════════════════════════════════════════
   FOOTER
════════════════════════════════════════════════════ */
.footer{
  background:var(--bg);border-top:1px solid var(--border);
  padding:1.75rem 0;
}
.footer-inner{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:1rem;
}
.footer-left{display:flex;flex-direction:column;gap:2px;}
.footer-name{font-size:.92rem;font-weight:700;}
.footer-role{font-size:.75rem;color:var(--text-3);}
.footer-credit{font-size:.78rem;color:var(--text-3);}
.footer-credit a{color:var(--accent);font-weight:600;}

/* Back to top */
.back-to-top{
  position:fixed;bottom:2rem;right:2rem;
  width:42px;height:42px;border-radius:12px;
  background:var(--accent);color:#fff;border:none;cursor:pointer;
  font-size:1rem;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 16px var(--accent-glow);
  opacity:0;visibility:hidden;
  transform:translateY(12px);
  transition:opacity .3s,visibility .3s,transform .3s;
  z-index:800;
}
.back-to-top.visible{opacity:1;visibility:visible;transform:none;}
.back-to-top:hover{transform:translateY(-2px);}

/* ════════════════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════════════════ */
@media(max-width:1024px){
  .hero-layout{grid-template-columns:1fr;text-align:center;}
  .hero-photo-wrap{margin:0 auto;}
  .available-pill,.hero-actions{justify-content:center;}
  .hero-meta{justify-content:center;}
  .hero-tagline{margin:0 auto 1.5rem;}
  .hero-stats{justify-content:center;}
  .ueber-layout{grid-template-columns:1fr;}
  .steckbrief{position:static;}
  .edu-layout{grid-template-columns:1fr;}
  .skills-layout{grid-template-columns:1fr 1fr;}
  .kontakt-layout{grid-template-columns:1fr;}
}
@media(max-width:768px){
  .nav-links{display:none;}
  .hamburger{display:flex;}
  .hero{min-height:auto;padding:60px 0 40px;}
  .hero-name{font-size:2.6rem;}
  .hero-photo-wrap{width:220px;height:220px;}
  .hero-photo{width:220px;height:220px;}
  .hero-stats{gap:1.5rem;}
  .section{padding:60px 0;}
  .skills-layout{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .tl-item{grid-template-columns:44px 1fr;}
}
@media(max-width:540px){
  .container{padding:0 1.25rem;}
  .hero-stats{flex-wrap:wrap;gap:1rem;}
  .kontakt-layout{gap:2.5rem;}
}