:root{
  --bg:#F4F6FA;
  --paper:#FFFFFF;
  --paper2:#F7F8FB;

  --text:#0B1220;
  --muted:#5E6B83;
  --text-muted:#5E6B83;

  --line:#D5DCEA;
  --accent:#1F6FEB;
  --accent2:#FF7A18;

  --radius:18px;
  --max:1120px;
  --shadow:0 18px 45px rgba(10,18,32,.10);
}

/* ===== Header polish (global, safe) ===== */
.header{
  box-shadow: 0 10px 30px rgba(10,18,32,.06);
}

/* NAV panel - zachowujemy Twoj styl, tylko lekko ciemniej i stabilniej */
.nav{
  padding: 6px;
  border-radius: 14px;
  border: 1px solid rgba(213,220,234,.95);

  /* bylo: rgba(255,255,255,.55) -> lekko ciemniej i mniej "brudzenia" */
  background: rgba(244,246,250,.82);

  /* blur zostaje, ale minimalnie mniej agresywny */
  backdrop-filter: blur(8px);
}

.nav a{
  position: relative;
  padding: 9px 12px;
  border-radius: 12px;
  transition: background .18s ease, transform .18s ease, color .18s ease, border-color .18s ease;
}

.nav a:hover{
  transform: translateY(-1px);
}

/* aktywny przycisk - bardziej "wcisniety", czytelny */
.nav a[aria-current="page"]{
  background: rgba(31,111,235,.14);
  border: 1px solid rgba(31,111,235,.22);
  color: rgba(11,18,32,.95);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.65);
}


/* ---------- Base ---------- */
*{box-sizing:border-box}
html,body{height:100%}

body{
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  font-weight:420;
  letter-spacing:-0.01em;
  color:var(--text);
  background:linear-gradient(180deg,var(--bg),#EEF2F8);
  overflow-x:hidden;
}

a{text-decoration:none;color:inherit}
.container{max-width:var(--max);margin:0 auto;padding:0 22px}
.muted{color:var(--muted)}
.small{font-size:12px;color:var(--muted)}

.section{padding:72px 0}
.section--tight{padding:54px 0}

.h1{
  font-size:44px;
  font-weight:620;
  letter-spacing:-0.04em;
  margin:0 0 12px;
}
.h2{
  font-size:28px;
  font-weight:600;
  margin:0 0 10px;
}
.p{
  max-width:70ch;
  line-height:1.75;
  color:var(--muted);
}

/* ---------- CAD Background ---------- */
.cad-bg{position:fixed;inset:0;z-index:-1;pointer-events:none}
.cad-bg__grid{
  inset:0;position:absolute;
  background:
    linear-gradient(to right,rgba(213,220,234,.6) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(213,220,234,.6) 1px,transparent 1px);
  background-size:56px 56px;
}
.cad-bg__grid::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(to right,rgba(230,235,245,.9) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(230,235,245,.9) 1px,transparent 1px);
  background-size:14px 14px;
}

.dim{
  position:absolute;
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.12em;
  color:rgba(11,18,32,.35);
  background:rgba(244,246,250,.75);
  border:1px solid var(--line);
  padding:6px 8px;
  border-radius:999px;
}
.dim--a{top:120px;left:6vw}
.dim--b{top:210px;right:8vw}
.dim--c{bottom:18vh;left:12vw}
.dim--d{bottom:10vh;right:10vw}

/* ---------- Header ---------- */
.header{
  position:sticky;top:0;z-index:50;

  /* CIEMNIEJSZE TL O HEADERA + gradient (ladny, ale nadal CAD) */
  background: linear-gradient(
    180deg,
    rgba(232,236,244,.98) 0%,
    rgba(244,246,250,.92) 100%
  );

  /* delikatna linia i troche mocniejszy cien */
  border-bottom:1px solid rgba(213,220,234,.95);
  box-shadow: 0 10px 26px rgba(10,18,32,.08);
}

.header__inner{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 0;
}

/* brand */
.brand{display:flex;gap:10px;align-items:center}

/* ikonka inzynierska */
.brand__icon{
  width: 18px;
  height: 18px;
  border-radius: 6px;
  position: relative;
  background: rgba(31,111,235,.12);
  border: 1px solid rgba(31,111,235,.22);
  box-shadow: 0 0 0 4px rgba(31,111,235,.08);
}
.brand__icon::before{
  content:"";
  position:absolute;
  inset: 4px;
  border-left: 3px solid rgba(31,111,235,.85);
  border-bottom: 3px solid rgba(31,111,235,.85);
  transform: rotate(45deg);
  border-radius: 2px;
}

.brand__mark{
  width:12px;height:12px;border-radius:4px;
  background:linear-gradient(135deg,var(--accent),rgba(31,111,235,.35));
  box-shadow:0 0 0 4px rgba(31,111,235,.10);
}

/* troszke wiekszy napis (zostaje spojnosc na stronach) */
.brand__text{
  font-weight:700;
  font-size:16px;
  letter-spacing:-0.02em;
}

/* nav links (drugi blok - zostawiamy Twoje przyciski/fonty) */
.nav{display:flex;gap:10px;align-items:center}
.nav a{
  font-size:14px;font-weight:520;
  padding:8px 10px;border-radius:10px;
  color:rgba(94,107,131,.95);
}
.nav a:hover{background:rgba(31,111,235,.06)}
.nav a[aria-current="page"]{
  background:rgba(31,111,235,.10);
  border:1px solid rgba(31,111,235,.18);
}

/* ---------- Card ---------- */
.card{
  background:rgba(255,255,255,.8);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px;
  box-shadow:var(--shadow);
}

/* ---------- Page head ---------- */
.page-head{
  display:flex;justify-content:space-between;gap:16px;
}
.page-head__right{min-width:320px}

/* ---------- Logos (Education) ---------- */
.logos-card{
  border:1px solid var(--line);
  background:rgba(255,255,255,.8);
  border-radius:var(--radius);
  padding:14px;
}
.logos{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
}
.logo-wrap{
  display:flex;gap:10px;align-items:center;
  border:1px dashed rgba(31,111,235,.18);
  border-radius:14px;
  padding:10px;
}
.logo-img{width:42px;height:42px;object-fit:contain}
.logo-img--wide{width:84px;height:42px}
.logo-k{
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.12em;
  color:var(--muted);
}
.logo-v{font-weight:620}

/* ---------- Timeline base ---------- */
.timeline{display:flex;flex-direction:column;gap:14px}

/* ---------- EDUCATION ---------- */
.edu-item{
  border:1px dashed rgba(31,111,235,.18);
  border-radius:16px;
  background:rgba(244,246,250,.55);
  padding:16px;
}
.edu-item__top{
  display:flex;justify-content:space-between;gap:12px;
}
.edu-item__title{
  display:flex;gap:10px;align-items:center;
  font-weight:620;
}
.edu-item__meta{
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.1em;
  color:var(--muted);
}
.edu-item__school{margin-top:10px;font-weight:620}
.edu-item__field{margin-top:8px;line-height:1.6}

.edu-badge{
  font-size:12px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(31,111,235,.18);
  background:rgba(31,111,235,.08);
}
.edu-badge--alt{
  border-color:rgba(255,122,24,.22);
  background:rgba(255,122,24,.10);
}
.edu-badge--gray{
  border-color:rgba(94,107,131,.22);
  background:rgba(94,107,131,.10);
}

.edu-block{
  margin-top:12px;
  padding:12px;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.7);
}
.edu-block__k{
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.14em;
  color:var(--muted);
}
.edu-block__v{margin-top:8px;line-height:1.6}

.edu-grid{
  margin-top:12px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.edu-chip{
  padding:12px;
  border:1px dashed rgba(31,111,235,.18);
  border-radius:14px;
  background:rgba(244,246,250,.55);
}
.edu-chip__k{
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.14em;
  color:var(--muted);
}
.edu-chip__v{margin-top:6px;font-weight:620}

/* ---------- EXPERIENCE ---------- */
.xp-item{
  border:1px dashed rgba(31,111,235,.18);
  border-radius:16px;
  background:rgba(244,246,250,.55);
  padding:16px;
}
.xp-top{
  display:flex;justify-content:space-between;gap:12px;
}
.xp-title{
  display:flex;gap:10px;align-items:center;
  font-weight:620;
}
.xp-meta{
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.1em;
  color:var(--muted);
}
.xp-badge{
  font-size:12px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(31,111,235,.18);
  background:rgba(31,111,235,.08);
}
.xp-badge--alt{
  border-color:rgba(255,122,24,.22);
  background:rgba(255,122,24,.10);
}
.xp-badge--gray{
  border-color:rgba(94,107,131,.22);
  background:rgba(94,107,131,.10);
}

.xp-about{
  margin-top:10px;
  max-width:90ch;
  line-height:1.7;
  color:var(--muted);
}
.xp-grid{
  margin-top:12px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.xp-box{
  padding:12px;
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.7);
}
.xp-box__k{
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.14em;
  color:var(--muted);
}
.xp-box__v{margin-top:8px;line-height:1.7}

/* ---------- Footer ---------- */
.footer{
  margin-top:24px;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
}

/* ---------- Responsive ---------- */
@media(max-width:980px){
  .page-head{flex-direction:column}
  .logos{grid-template-columns:1fr}
  .edu-grid,.xp-grid{grid-template-columns:1fr}
}
@media(max-width:520px){
  .h1{font-size:34px}
  .nav{flex-wrap:wrap}
  .dim{display:none}
}

/* =========================================================
   PROJECTS – PREMIUM
========================================================= */

.projects-head{
  display:flex;
  flex-direction:column;
  gap:14px;
  margin-bottom:14px;
}

.pdf-stage{
  max-width: 900px;
  margin: 14px auto 0;
}

.pdf-loading{
  font-size:13px;
  padding:12px 14px;
  border-radius:16px;
  border:1px solid rgba(213,220,234,.95);
  background: rgba(255,255,255,.75);
  color: rgba(94,107,131,.98);
}

.pdf-error .pdf-loading{
  border-color: rgba(255,122,24,.35);
  color: rgba(11,18,32,.85);
}

.pdf-gallery{
  display:flex;
  flex-direction:column;
  gap: 12px;
}

.pdf-page{
  padding: 10px;
  border-radius: 18px;
  border: 1px dashed rgba(31,111,235,.14);
  background: rgba(244,246,250,.55);
  transform: translateY(2px);
  opacity: 0.98;
  transition: transform .22s ease, opacity .22s ease;
}
.pdf-page--rendered{
  transform: translateY(0);
  opacity: 1;
}

.pdf-page__paper{
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(213,220,234,.95);
  background: #fff;
  box-shadow: 0 14px 36px rgba(10,18,32,.08);
  padding: 18px;
}

.pdf-canvas{
  display:block;
  margin:0 auto;
  width:100%;
  height:auto;
  border-radius: 10px;
}

.pdf-watermark{
  position:absolute;
  top: 10px;
  right: 12px;
  display:flex;
  gap: 8px;
  font-size:10px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color: rgba(11,18,32,.28);
  pointer-events:none;
}
.pdf-watermark span{
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid rgba(213,220,234,.75);
  background: rgba(255,255,255,.65);
}

/* centered project title block */
.project-title-center{
  text-align:center;
  max-width: 940px;
  margin: 0 auto;
}

/* MSc title one line (desktop) */
.project-title-center .h2{
  margin-bottom: 6px;
  white-space: nowrap;
}

/* paragraph: balanced, max 2 lines */
.project-title-center .p{
  max-width: 780px;
  margin: 0 auto;
  line-height: 1.65;
  text-wrap: balance;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

/* allow wrap on small screens */
@media (max-width:520px){
  .project-title-center .h2{white-space: normal;}
}

@media (min-width:1200px){
  .pdf-stage{max-width: 860px}
}

/* =========================================================
   PROJECT: KRUSZARKA MLOTKOWA
========================================================= */

.project-separator{
  max-width: 260px;
  height: 1px;
  margin: 48px auto 36px;
  background: linear-gradient(
    to right,
    transparent,
    rgba(31,111,235,.35),
    transparent
  );
}

.project-block{
  margin-top: 24px;
}

.pdf-page--text{
  max-width: 900px;
  margin: 0 auto 22px;
}

.project-subtitle{
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 14px;
}

.project-assumptions{
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
}
.project-assumptions li{
  padding: 6px 0;
  border-bottom: 1px solid rgba(213,220,234,.6);
  font-size: 15px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.project-assumptions li:last-child{
  border-bottom: none;
}
.project-assumptions li strong{
  font-weight: 500;
}

/* Description: FULL width of the paper, justified */
.pdf-page--text .project-description{
  color: var(--muted);
  max-width: none;
  width: 100%;
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid rgba(213,220,234,.6);
  line-height: 1.78;
  text-align: justify;
  text-justify: inter-word;
  hyphens: auto;
}

.project-drawing-title{
  text-align: center;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  margin: 18px 0 8px;
}

.pdf-page--text .pdf-page__paper{
  box-shadow:
    0 10px 30px rgba(15, 23, 42, 0.06),
    0 0 0 1px rgba(203, 213, 225, 0.7);
}

/* =========================================================
   CERTIFICATES – FINAL (SAFE, ONLY THIS PAGE)
========================================================= */

.page-certificates .container{
  max-width: 1560px;
}

.page-certificates .cert-card{
  padding: 26px;
}

.page-certificates .cert-grid{
  margin-top: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr 1.35fr;
  gap: 18px;
  align-items: start;
}

.page-certificates .cert-item{
  appearance: none;
  border: 1px dashed rgba(31,111,235,.14);
  background: rgba(244,246,250,.55);
  border-radius: 18px;
  padding: 10px;
  cursor: pointer;
  box-shadow: 0 10px 26px rgba(10,18,32,.06);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  position: relative;
  text-align: left;
}

.page-certificates .cert-item:hover{
  transform: translateY(-2px);
  background: rgba(244,246,250,.70);
  box-shadow: 0 18px 40px rgba(10,18,32,.10);
}

.page-certificates .cert-item:focus{
  outline: none;
  box-shadow: 0 0 0 4px rgba(31,111,235,.16), 0 18px 40px rgba(10,18,32,.10);
}

.page-certificates .cert-paper{
  border-radius: 16px;
  background: #fff;
  border: 1px solid rgba(213,220,234,.95);
  box-shadow: 0 14px 34px rgba(10,18,32,.08);
}

.page-certificates .cert-item--portrait .cert-paper{
  aspect-ratio: 1 / 1.414;
}

.page-certificates .cert-item--landscape .cert-paper{
  aspect-ratio: 1.414 / 1;
}

.page-certificates .cert-img{
  position: absolute;
  inset: 10px;
  width: calc(100% - 20px);
  height: calc(100% - 20px);
  object-fit: contain;
  border-radius: 14px;
  background: #fff;
}

.page-certificates .cert-fallback{
  position: absolute;
  inset: 10px;
  border-radius: 14px;
  display: none;
  place-items: center;
  text-align: center;
  padding: 18px;
  color: rgba(94,107,131,.9);
  background: #fff;
  border: 1px solid rgba(213,220,234,.95);
}

.page-certificates .cert-fallback__small{
  display: inline-block;
  margin-top: 8px;
  font-size: 12px;
  color: rgba(94,107,131,.75);
}

.page-certificates .cert-item--broken .cert-fallback{
  display: grid;
}

.page-certificates .cert-item--broken .cert-img{
  display: none;
}

@media(max-width: 1100px){
  .page-certificates .cert-grid{
    grid-template-columns: 1fr;
  }
  .page-certificates .cert-item{
    max-width: 920px;
    margin: 0 auto;
  }
}

/* =========================================================
   MODAL – dopasowana ramka (fit-content), bez rozciagania
========================================================= */

.page-certificates .no-scroll{
  overflow: hidden;
}

.page-certificates .img-modal{
  position: fixed;
  inset: 0;
  z-index: 999;
  display: none;
}

.page-certificates .img-modal.is-open{
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
}

.page-certificates .img-modal__backdrop{
  position: absolute;
  inset: 0;
  background: rgba(15,23,42,.55);
  backdrop-filter: blur(8px);
}

.page-certificates .img-modal__frame{
  position: relative;
  z-index: 1;

  width: fit-content;
  height: fit-content;

  max-width: calc(100vw - 56px);
  max-height: calc(100vh - 56px);

  padding: 14px;
  border-radius: 20px;

  border: 1px solid rgba(213,220,234,.9);
  background: rgba(255,255,255,.88);

  box-shadow:
    0 34px 90px rgba(15,23,42,.38),
    0 0 0 1px rgba(255,255,255,.55);
}

.page-certificates .img-modal__frame--portrait{
  max-width: min(860px, calc(100vw - 56px));
}

.page-certificates .img-modal__frame--landscape{
  max-width: min(1200px, calc(100vw - 56px));
}

.page-certificates .img-modal__paper{
  border-radius: 16px;
  border: 1px solid rgba(213,220,234,.95);
  background: #fff;
  box-shadow: 0 18px 50px rgba(10,18,32,.20);
  overflow: hidden;
  padding: 14px;

  display: grid;
  place-items: center;

  max-height: calc(100vh - 120px);
}

.page-certificates .img-modal__paper img{
  display: block;
  width: auto;
  height: auto;

  max-width: calc(100vw - 140px);
  max-height: calc(100vh - 170px);

  object-fit: contain;
  border-radius: 14px;

  background: #fff;
  box-shadow:
    0 12px 44px rgba(15,23,42,.18),
    0 0 0 1px rgba(203,213,225,.9);
}

.page-certificates .img-modal__close{
  position: absolute;
  top: 10px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;

  border: 1px solid rgba(213,220,234,.9);
  background: rgba(255,255,255,.96);
  color: #0B1220;

  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

.page-certificates .img-modal__close:hover{
  background: #fff;
}

/* =========================================================
   HOME – clean layout + right side panels
========================================================= */

.container--home{
  max-width: 1320px;
}

.home-grid{
  display: grid;
  grid-template-columns: 1.7fr 0.9fr;
  gap: 18px;
  align-items: start;
}

.home-card{
  padding: 26px;
}

.home-paragraph{
  max-width: 78ch;
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.78;

  text-align: justify;
  text-justify: inter-word;

  hyphens: none;
  word-break: normal;
  overflow-wrap: normal;
}

.home-actions{
  margin-top: 18px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.home-side{
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.side-card{
  padding: 18px;
  background: rgba(255,255,255,.86);
  border: 1px solid rgba(213,220,234,.95);
  box-shadow: 0 14px 34px rgba(10,18,32,.08);
}

.side-title{
  font-size: 18px;
  margin: 0 0 12px;
}

.side-list{
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.side-list li{
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px dashed rgba(31,111,235,.16);
  background: rgba(244,246,250,.55);
  color: rgba(11,18,32,.88);
  font-size: 14px;
}

.side-list--chips{
  grid-template-columns: 1fr;
}
.side-list--chips li{
  border-style: solid;
  border-color: rgba(94,107,131,.20);
  background: rgba(255,255,255,.75);
}

@media (max-width: 980px){
  .home-grid{
    grid-template-columns: 1fr;
  }
  .home-paragraph{
    max-width: none;
  }
}

/* =========================================================
   CONTACT – layout + download button (only this page)
========================================================= */

.contact-row{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}

.contact-info{
  min-width: 260px;
}

.contact-line{
  margin: 0 0 10px;
}

.btn.btn--download{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;

  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(31,111,235,.22);
  background: rgba(31,111,235,.10);
  color: rgba(11,18,32,.92);

  font-size: 14px;
  font-weight: 620;

  box-shadow: 0 12px 28px rgba(10,18,32,.08);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space: nowrap;
}

.btn.btn--download:hover{
  transform: translateY(-1px);
  background: rgba(31,111,235,.14);
  box-shadow: 0 18px 40px rgba(10,18,32,.10);
}

.btn.btn--download::before{
  content:"\2193";
  width: 18px;
  height: 18px;
  display:inline-grid;
  place-items:center;

  border-radius: 6px;
  border: 1px solid rgba(31,111,235,.22);
  background: rgba(255,255,255,.65);
  box-shadow: 0 0 0 4px rgba(31,111,235,.08);

  font-size: 14px;
  line-height: 1;
  color: rgba(31,111,235,.88);
}