/* 
  Karol Tkaczyk — Stylesheet (assets/style.css)
  Styl: dark-first + light variant, dostępność, responsywność
  Uwaga: zmienne kolorów/tematu w :root; nadpisania dla [data-theme="light"]
*/

:root{
  --bg:#0b0b10; --panel:#13131a; --ink:#e7e7f0; --muted:#a7a7be;
  --brand:#8d44ad; --brand-2:#5b6cff; --ok:#2ecc71; --warn:#f39c12; --err:#e74c3c;
  --radius:16px; --radius-lg:22px; --shadow:0 10px 30px rgba(0,0,0,.35);
}

/* LIGHT THEME */
:root[data-theme="light"]{
  --bg:#f6f7fb; --panel:#ffffff; --ink:#181824; --muted:#5a5a72;
  --shadow:0 10px 30px rgba(0,0,0,.08);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font:16px/1.6 Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Helvetica,Arial,sans-serif;
  background:
    radial-gradient(1200px 800px at 90% -5%,rgba(93,108,255,.18),transparent 60%),
    radial-gradient(1000px 700px at 10% 105%,rgba(141,68,173,.18),transparent 60%),
    var(--bg);
  color:var(--ink)
}

a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.container{width:min(1120px,92%);margin-inline:auto}

/* NAV */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:saturate(140%) blur(12px);background:rgba(11,11,16,.5);border-bottom:1px solid rgba(255,255,255,.06)}
:root[data-theme="light"] .nav{background:rgba(255,255,255,.7);border-bottom:1px solid rgba(0,0,0,.06)}
.nav .inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;gap:12px;align-items:center;font-weight:700}
.brand .logo{width:36px;height:36px;border-radius:10px;background:conic-gradient(from 0deg, var(--brand), var(--brand-2), var(--brand));box-shadow:0 6px 20px rgba(141,68,173,.45)}
.menu{display:flex;gap:22px;align-items:center}
.menu a{opacity:.8}
.menu a.active,.menu a:hover{opacity:1}
.cta{padding:10px 16px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand-2));box-shadow:0 10px 24px rgba(141,68,173,.35);font-weight:600}

/* Toggles */
.toggles{
  display:flex; gap:8px; align-items:center;
  padding:6px 8px; border-radius:14px;
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 8px 20px rgba(0,0,0,.35);
}
:root[data-theme="light"] .toggles{
  background:linear-gradient(180deg, rgba(0,0,0,.06), rgba(0,0,0,.02));
  border-color:rgba(0,0,0,.12);
  box-shadow:0 8px 20px rgba(0,0,0,.12);
}
.btn{padding:12px 16px;border-radius:12px;border:1px solid rgba(255,255,255,.1);display:inline-flex;align-items:center;gap:10px;cursor:pointer}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));border:none;box-shadow:var(--shadow);font-weight:700}
.btn.ghost{
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.28);
  color:#f6f6ff;
  padding:8px 10px;
  border-radius:12px;
}
:root[data-theme="light"] .btn.ghost{
  background:rgba(0,0,0,.05);
  border-color:rgba(0,0,0,.15);
  color:#1d1d2a;
}
.btn:focus-visible,.chip:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}
.lang-switch .btn{padding:8px 10px}
.lang-switch .btn[aria-pressed="true"]{
  background:linear-gradient(135deg, var(--brand), var(--brand-2));
  color:#fff; border-color:transparent;
  box-shadow:0 8px 22px rgba(141,68,173,.45);
}
/* HERO */
.hero{position:relative;overflow:hidden}
.grid{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;padding:80px 0}
.kicker{display:inline-flex;gap:10px;align-items:center;padding:6px 10px;border:1px solid rgba(255,255,255,.12);border-radius:999px;color:var(--muted)}
:root[data-theme="light"] .kicker{border-color:rgba(0,0,0,.08)}
h1{font-size: clamp(36px, 6vw, 64px);line-height:1.05;margin:14px 0 10px}
.lead{font-size:clamp(16px,2.8vw,20px);color:#cfd0e6;max-width:58ch}
:root[data-theme="light"] .lead{color:#35354a}
.actions{display:flex;gap:12px;margin-top:22px}
.badge{display:inline-flex;gap:8px;align-items:center;background:rgba(255,255,255,.06);padding:8px 12px;border-radius:999px;color:#c9c9df;font-weight:600}
:root[data-theme="light"] .badge{background:rgba(0,0,0,.06);color:#2a2a40}
.hero-art{position:relative;aspect-ratio:1/1;border-radius:24px;background:linear-gradient(145deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.06);box-shadow:var(--shadow);}
:root[data-theme="light"] .hero-art{background:linear-gradient(145deg,rgba(0,0,0,.04),rgba(0,0,0,.02));border-color:rgba(0,0,0,.06)}
.hero-layer{position:absolute;inset:12px;border-radius:18px}
.blob{position:absolute;inset:auto;filter:blur(40px);opacity:.65;border-radius:50%}
.blob.one{width:180px;height:180px;background:radial-gradient(circle at 30% 30%, #9b59b6, transparent 60%);top:-30px;right:-20px}
.blob.two{width:220px;height:220px;background:radial-gradient(circle at 60% 50%, #5b6cff, transparent 60%);bottom:-40px;left:-30px}

/* Sections */
section{padding:80px 0;border-top:1px solid rgba(255,255,255,.06)}
:root[data-theme="light"] section{border-top-color:rgba(0,0,0,.06)}
section h2{font-size:clamp(28px,4.6vw,44px);margin:0 0 8px}
section .sub{color:var(--muted);margin:0 0 24px}

/* About */
.about{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:start}
.about .panel{background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius-lg);padding:22px;box-shadow:var(--shadow)}
:root[data-theme="light"] .about .panel{border-color:rgba(0,0,0,.06)}
.keypoints{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:8px}
.keypoints .item{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:12px}
:root[data-theme="light"] .keypoints .item{background:rgba(0,0,0,.03);border-color:rgba(0,0,0,.06)}

/* Skills */
.skills-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.skill{background:linear-gradient(160deg,rgba(255,255,255,.05),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.06);border-radius:14px;padding:16px;transition:transform .25s ease, box-shadow .25s ease}
:root[data-theme="light"] .skill{background:linear-gradient(160deg,rgba(0,0,0,.03),rgba(0,0,0,.01));border-color:rgba(0,0,0,.06)}
.skill:hover{transform:translateY(-4px);box-shadow:0 12px 26px rgba(0,0,0,.35)}
.meter{height:8px;background:rgba(255,255,255,.08);border-radius:99px;overflow:hidden;margin-top:10px}
:root[data-theme="light"] .meter{background:rgba(0,0,0,.08)}
.meter > i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-2))}

/* Projects – filtry (wyraźniejsze) */
.filters{
  display:flex; gap:10px; flex-wrap:wrap; margin:8px 0 22px;
  padding:10px; border-radius:16px;
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.14);
  box-shadow:0 10px 24px rgba(0,0,0,.35), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter: blur(6px) saturate(120%);
}
:root[data-theme="light"] .filters{
  background: rgba(0,0,0,.04);
  border: 1px solid rgba(0,0,0,.08);
}
.chip{
  position:relative;
  padding:10px 14px;
  border-radius:999px;
  font-weight:600; letter-spacing:.2px;
  color:#f0f0ff;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  box-shadow:0 6px 16px rgba(0,0,0,.28);
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease, opacity .15s ease;
  opacity:1;
}
:root[data-theme="light"] .chip{
  background: rgba(0,0,0,.04);
  color: #222;
  border: 1px solid rgba(0,0,0,.1);
}
.chip:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(0,0,0,.35);background:rgba(255,255,255,.14);text-decoration:none}
:root[data-theme="light"] .chip:hover{box-shadow:0 12px 24px rgba(0,0,0,.12);background:rgba(0,0,0,.08)}
.chip.active{color:#fff;background:linear-gradient(135deg, var(--brand), var(--brand-2));border-color:transparent;box-shadow:0 12px 26px rgba(141,68,173,.45)}
:root[data-theme="light"] .chip.active{
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 10px 22px rgba(141,68,173,.28);
}

/* Cards */
.projects{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.card{position:relative;overflow:hidden;border-radius:16px;background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.06);box-shadow:var(--shadow);cursor:pointer}
:root[data-theme="light"] .card{background:linear-gradient(160deg,rgba(0,0,0,.03),rgba(0,0,0,.01));border-color:rgba(0,0,0,.06)}
.card .thumb{aspect-ratio:16/10;background:linear-gradient(135deg,rgba(141,68,173,.25),rgba(91,108,255,.25));display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:26px;letter-spacing:.5px}
.card .body{padding:14px}
.card .tags{display:flex;gap:8px;flex-wrap:wrap;color:#bdbdd3}
:root[data-theme="light"] .card .tags{color:#58586e}
:root[data-theme="light"] .card .thumb{
  background: linear-gradient(135deg, rgba(141,68,173,.16), rgba(91,108,255,.16));
  color:#fff;
}

/* Certyfikaty */
.certs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.cert{background:var(--panel);border:1px solid rgba(255,255,255,.06);border-radius:16px;padding:16px}
:root[data-theme="light"] .cert{border-color:rgba(0,0,0,.06)}

/* Kontakt */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:24px}
form{display:grid;gap:12px}
input, textarea{width:100%;padding:12px 14px;border-radius:12px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);color:var(--ink)}
:root[data-theme="light"] input, :root[data-theme="light"] textarea{border-color:rgba(0,0,0,.12);background:rgba(0,0,0,.03)}
textarea{min-height:140px;resize:vertical}
.small{color:var(--muted);font-size:13px}

/* Footer */
footer{padding:24px 0;color:#9aa;display:flex;justify-content:center;border-top:1px solid rgba(255,255,255,.06)}
:root[data-theme="light"] footer{color:#52526a;border-color:rgba(0,0,0,.06)}

/* Modal */
.modal{max-width:920px;width:92%;border:none;border-radius:18px;padding:0;background:var(--panel);color:var(--ink)}
.modal-head{display:flex;justify-content:space-between;align-items:center;padding:16px 18px;border-bottom:1px solid rgba(255,255,255,.06)}
.modal-body{padding:16px 18px}
.close-btn{background:transparent;border:1px solid rgba(255,255,255,.18)}
#pmClose{color:var(--ink)!important}
.modal-grid { display:grid; gap:10px; }

:root[data-theme="light"] .btn.primary,
:root[data-theme="light"] button[type="submit"]{
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  border: none;
  box-shadow: 0 14px 26px rgba(141,68,173,.25);
}
:root[data-theme="light"] .btn.primary:hover,
:root[data-theme="light"] button[type="submit"]:hover{
  transform: translateY(-1px);
  box-shadow: 0 18px 30px rgba(141,68,173,.28);
}

/* Zgoda na politykę */
.consent {
  display:flex; align-items:flex-start; gap:10px;
  font-size:14px; color:var(--muted);
}
.consent input { margin-top:3px; }
.consent a { font-weight:600; text-decoration:underline; }
:root[data-theme="light"] .consent { color:#4a4a62; }

.site-footer{
  border-top:1px solid rgba(255,255,255,.06);
  padding:24px 0;
  color:#a7a7be;
}
:root[data-theme="light"] .site-footer{
  border-top-color:rgba(0,0,0,.06);
  color:#52526a;
}

.footer-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; flex-wrap:wrap;
}

.fineprint{
  margin:0;
  display:flex; align-items:center; gap:.5rem;
  font-size:14px; line-height:1.4;
}
.fineprint .owner{font-weight:600; color:var(--ink)}
.fineprint .sep{opacity:.45}

.footer-nav{display:flex; gap:14px; align-items:center}
.footer-nav a{
  font-size:14px; text-decoration:none; opacity:.85;
}
.footer-nav a:hover, .footer-nav a:focus{
  text-decoration:underline; opacity:1;
}

/* Wariant wyśrodkowany na bardzo wąskich ekranach */
@media (max-width:560px){
  .footer-inner{justify-content:center; text-align:center}
  .footer-nav{justify-content:center}
}

/* Responsive */
@media (max-width:1024px){
  .grid{grid-template-columns:1fr;gap:28px;padding:56px 0}
  .about{grid-template-columns:1fr}
  .skills-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .projects{grid-template-columns:repeat(2,minmax(0,1fr))}
  .certs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .contact{grid-template-columns:1fr}
}
@media (max-width:640px){
  .menu{display:none}
  .skills-grid{grid-template-columns:1fr}
  .projects{grid-template-columns:1fr}
  .certs{grid-template-columns:1fr}
  h1{font-size:clamp(28px,9vw,48px)}
}
@media (max-width:480px){
  .keypoints{grid-template-columns:1fr}
  .hero-art{margin-top:8px}
}

/* Motion safety */
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important}
}