:root{
  --navy:#15233b;--navy-2:#1d3050;--slate:#46586f;
  --gold:#b08227;--gold-soft:#caa24f;--paper:#fbfaf6;
  --line:#e4ddcf;--ink:#222a36;--side:280px;--top:56px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--paper);line-height:1.65;font-size:17px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:Georgia,'Times New Roman',serif;font-weight:600;line-height:1.2;color:var(--navy)}
a{color:var(--gold);text-decoration:none;transition:color .2s}
a:hover{color:var(--navy)}

/* SIDEBAR */
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--side);background:linear-gradient(165deg,var(--navy),var(--navy-2));color:#e7ecf3;display:flex;flex-direction:column;z-index:100;border-right:1px solid rgba(255,255,255,.06)}
.sidebar::after{content:"";position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.045) 1px,transparent 1px);background-size:20px 20px;opacity:.5}
.side-head{padding:34px 28px 26px;border-bottom:1px solid rgba(255,255,255,.08);position:relative;z-index:2}
.avatar{width:64px;height:64px;border-radius:50%;background:linear-gradient(145deg,var(--gold),var(--gold-soft));display:flex;align-items:center;justify-content:center;font-family:Georgia,serif;font-size:1.5rem;font-weight:700;color:var(--navy);margin-bottom:16px;box-shadow:0 8px 20px -8px rgba(0,0,0,.5)}
.side-head .nm{font-family:Georgia,serif;font-size:1.32rem;color:#fff;line-height:1.25}
.side-head .ti{font-size:.82rem;color:var(--gold-soft);margin-top:6px}
.side-head .af{font-size:.78rem;color:#aab6c8;margin-top:8px}
.side-nav{flex:1;overflow-y:auto;padding:18px 16px;position:relative;z-index:2}
.side-nav a{display:flex;align-items:center;gap:13px;padding:11px 16px;border-radius:9px;margin-bottom:3px;color:#c2ccda;font-size:.92rem;font-weight:500;cursor:pointer;transition:background .2s,color .2s}
.side-nav a .ic{width:18px;text-align:center;font-size:.95rem;opacity:.85}
.side-nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.side-nav a.active{background:rgba(176,130,39,.18);color:#fff;box-shadow:inset 3px 0 0 var(--gold)}
.side-foot{padding:18px 28px 24px;border-top:1px solid rgba(255,255,255,.08);position:relative;z-index:2;font-size:.78rem;color:#9aa7ba}
.side-foot a{color:var(--gold-soft)}
.side-foot a:hover{color:#fff}
.side-foot .row{margin-bottom:6px;display:flex;gap:8px;align-items:center}

/* TOPBAR */
.topbar{position:fixed;top:0;left:var(--side);right:0;height:var(--top);z-index:90;background:rgba(251,250,246,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 26px}
.tb-name{display:none;font-family:Georgia,serif;font-weight:600;font-size:1rem;color:var(--navy)}
.tb-name span{color:var(--gold)}
.burger{display:none;background:none;border:none;color:var(--navy);font-size:1.5rem;cursor:pointer;margin-right:14px}
.lang-switch{margin-left:auto;display:flex;gap:6px;background:#fff;border:1px solid var(--line);border-radius:30px;padding:4px}
.lang-switch button{border:none;background:none;cursor:pointer;font-size:.82rem;font-weight:600;color:var(--slate);padding:6px 13px;border-radius:30px;display:flex;align-items:center;gap:6px;transition:all .2s;font-family:inherit}
.lang-switch button .fl{width:22px;height:15px;border-radius:2px;display:block;box-shadow:0 0 0 1px rgba(0,0,0,.15);overflow:hidden}
.lang-switch button:hover{color:var(--navy)}
.lang-switch button.active{background:var(--navy);color:#fff}

/* MAIN */
.main{margin-left:var(--side);min-height:100vh;padding-top:var(--top)}
.page{display:none;animation:fade .45s ease}
.page.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.page-inner{max-width:880px;margin:0 auto;padding:54px 48px 90px}
.sec-num{font-size:.72rem;letter-spacing:2.5px;text-transform:uppercase;color:var(--gold);font-weight:700;font-family:Inter,sans-serif}
.page h1.title{font-size:2.3rem;margin:8px 0 14px;position:relative;padding-bottom:16px}
.page h1.title::after{content:"";position:absolute;left:0;bottom:0;width:56px;height:3px;background:var(--gold);border-radius:2px}
.page .intro{color:var(--slate);max-width:680px;margin-bottom:42px}

/* HERO */
.hero-block{background:linear-gradient(160deg,var(--navy),var(--navy-2));color:#eef1f6;border-radius:18px;padding:48px 44px;margin-bottom:42px;position:relative;overflow:hidden;display:flex;gap:40px;align-items:center}
.hero-block::after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);background-size:22px 22px;opacity:.4}
.hero-block .eyebrow{display:inline-block;font-size:.7rem;letter-spacing:2px;text-transform:uppercase;color:var(--gold-soft);font-weight:600;border:1px solid rgba(202,162,79,.4);padding:5px 14px;border-radius:30px;margin-bottom:18px;position:relative;z-index:2}
.hero-block h1{color:#fff;font-size:2.6rem;margin-bottom:8px;position:relative;z-index:2}
.hero-block .role{font-family:Georgia,serif;font-style:italic;color:#c8d2e0;font-size:1.1rem;position:relative;z-index:2}
.hero-block .lead{color:#d7dde7;margin-top:20px;max-width:660px;position:relative;z-index:2;font-size:1.02rem}
.hero-text{flex:1;min-width:0}
.hero-portrait{flex-shrink:0;width:190px;height:230px;border-radius:14px;overflow:hidden;position:relative;z-index:2;box-shadow:0 18px 44px -18px rgba(0,0,0,.65);border:3px solid rgba(255,255,255,.16)}
.hero-portrait img{width:100%;height:100%;object-fit:cover;display:block}
.hero-portrait.empty img{display:none}
.hero-portrait.empty{background:repeating-linear-gradient(45deg,rgba(255,255,255,.05),rgba(255,255,255,.05) 10px,rgba(255,255,255,.1) 10px,rgba(255,255,255,.1) 20px)}
.hero-portrait.empty::after{content:"Zdjęcie";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#aab6c8;font-size:.8rem;letter-spacing:1px}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1fr 300px;gap:40px;align-items:start}
.about-text p{margin-bottom:16px;color:#374251}
.facts{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px;box-shadow:0 14px 40px -28px rgba(21,35,59,.45)}
.facts h4{font-size:1rem;margin-bottom:16px}
.facts dl{display:grid;grid-template-columns:auto 1fr;gap:9px 14px;font-size:.9rem}
.facts dt{color:var(--gold);font-weight:600}
.facts dd{color:#3a4555}

/* TIMELINE */
.timeline{position:relative;margin-left:8px;padding-left:30px}
.timeline::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl-item{position:relative;padding:0 0 30px 0}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-34px;top:6px;width:11px;height:11px;border-radius:50%;background:var(--gold);border:3px solid var(--paper);box-shadow:0 0 0 2px var(--gold)}
.tl-date{font-size:.76rem;font-weight:700;letter-spacing:1px;color:var(--gold);text-transform:uppercase}
.tl-item h3{font-size:1.12rem;margin:4px 0}
.tl-item .org{color:var(--slate);font-size:.92rem;font-style:italic}
.tl-item p{color:#475264;font-size:.93rem;margin-top:6px}

/* CARDS */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px;transition:transform .25s,box-shadow .25s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--gold),var(--gold-soft));transform:scaleX(0);transform-origin:left;transition:transform .3s}
.card:hover{transform:translateY(-5px);box-shadow:0 22px 50px -30px rgba(21,35,59,.5)}
.card:hover::before{transform:scaleX(1)}
.card h3{font-size:1.06rem;margin-bottom:8px}
.card p{color:#4a5566;font-size:.9rem}

/* PROJECTS */
.proj{background:#fff;border:1px solid var(--line);border-left:4px solid var(--gold);border-radius:10px;padding:22px 26px;margin-bottom:18px;transition:box-shadow .25s}
.proj:hover{box-shadow:0 18px 40px -30px rgba(21,35,59,.5)}
.role-badge{display:inline-block;font-size:.68rem;letter-spacing:1px;text-transform:uppercase;font-weight:700;color:#fff;background:var(--navy);padding:3px 10px;border-radius:20px;margin-bottom:10px}
.role-badge.member{background:var(--slate)}
.proj h3{font-size:1.06rem;margin-bottom:6px}
.proj .meta{font-size:.84rem;color:var(--slate)}

/* PUBLICATIONS */
.pub{display:grid;grid-template-columns:74px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line);align-items:start}
.pub:last-child{border-bottom:none}
.pub .year{font-family:Georgia,serif;font-size:1.3rem;font-weight:700;color:var(--gold);line-height:1}
.pub .ttl{font-weight:600;color:var(--navy);margin-bottom:4px}
.pub .venue{font-size:.86rem;color:var(--slate);font-style:italic}

/* LISTS / TAGS */
.col2{columns:2;column-gap:40px}
.col2 li{break-inside:avoid;margin-bottom:9px;color:#3f4a5a;font-size:.92rem;list-style:none;padding-left:20px;position:relative}
.col2 li::before{content:"";position:absolute;left:0;top:.6em;width:6px;height:6px;background:var(--gold);border-radius:50%}
.tag-row{display:flex;flex-wrap:wrap;gap:11px}
.tag{background:#fff;border:1px solid var(--line);color:var(--navy);padding:9px 16px;border-radius:30px;font-size:.86rem;font-weight:500;transition:all .2s}
.tag:hover{background:var(--navy);color:#fff;border-color:var(--navy)}

/* AWARDS */
.award-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px}
.award{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;display:flex;gap:15px;align-items:flex-start}
.award .ico{font-size:1.6rem;flex-shrink:0}
.award .y{font-size:.76rem;font-weight:700;color:var(--gold);letter-spacing:1px}
.award h3{font-size:1rem;margin:4px 0}
.award p{font-size:.85rem;color:#4a5566}
.hobbies{display:flex;flex-wrap:wrap;gap:14px}
.hob{display:flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);border-radius:30px;padding:10px 20px;font-size:.9rem;color:var(--navy);font-weight:500}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.contact-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;transition:box-shadow .2s}
.contact-card:hover{box-shadow:0 18px 44px -30px rgba(21,35,59,.5)}
.contact-card .lbl{font-size:.7rem;letter-spacing:1.5px;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:8px}
.contact-card .val{font-size:.96rem;color:var(--ink);word-break:break-word}
.blockh{margin:38px 0 16px;font-size:1.25rem}

.overlay{display:none;position:fixed;inset:0;background:rgba(10,16,28,.55);z-index:95}

/* RESPONSIVE */
@media(max-width:880px){
  .topbar{left:0}
  .burger,.tb-name{display:block}
  .overlay.show{display:block}
  .sidebar{transform:translateX(-100%);transition:transform .3s ease;width:300px;box-shadow:0 0 50px rgba(0,0,0,.4)}
  .sidebar.open{transform:none}
  .main{margin-left:0}
  .page-inner{padding:34px 24px 70px}
  .hero-block{padding:34px 26px}
  .hero-block h1{font-size:2rem}
  .page h1.title{font-size:1.8rem}
}
@media(max-width:760px){.about-grid{grid-template-columns:1fr}}
@media(max-width:640px){.hero-block{flex-direction:column;text-align:left}.hero-portrait{width:150px;height:185px}}
@media(max-width:600px){.col2{columns:1}}
@media(max-width:520px){.pub{grid-template-columns:52px 1fr;gap:14px}.pub .year{font-size:1.05rem}}