/* Shared presentation for the Polish and English portfolio. */
:root {
  color-scheme: dark;
  --bg: #101216;
  --surface: #191c22;
  --text: #f3f4f6;
  --muted: #b4bbc6;
  --accent: #75c8ff;
  --line: #30353e;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { background: var(--bg); color: var(--text); font-family: "Segoe UI", Arial, sans-serif; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
img { display: block; max-width: 100%; }
button, a, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
.container { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: absolute; top: 12px; left: 12px; padding: 12px 18px; background: var(--accent); color: var(--bg); z-index: 10; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.masthead { display: flex; align-items: center; justify-content: space-between; gap: 28px; min-height: 100px; border-bottom: 1px solid var(--line); }
.wordmark { font-size: 1.65rem; font-weight: 800; letter-spacing: -.09em; }
.wordmark span, .highlight { color: var(--accent); }
.site-nav { display: flex; gap: 32px; font-size: .9rem; color: var(--muted); }
.lang-switch { display: flex; gap: 3px; font-size: .8rem; }
.lang-switch a { display: block; padding: 8px 10px; border-radius: 5px; }
.lang-switch a.active { background: #262c35; color: var(--text); }
.hero { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 72px; padding-block: 80px 90px; }
.eyebrow { font-size: .7rem; font-weight: 600; letter-spacing: .16em; color: var(--muted); margin-bottom: 20px; }
h1 { font-size: clamp(2.8rem, 4.8vw, 4.7rem); line-height: 1.05; letter-spacing: -.055em; font-weight: 750; margin-bottom: 28px; }
.hero-lead { font-size: clamp(1.45rem, 2.3vw, 2rem); line-height: 1.3; letter-spacing: -.025em; margin-bottom: 22px; }
.hero-description { color: var(--muted); max-width: 480px; font-size: 1rem; }
.buttons { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.btn { display: inline-flex; justify-content: center; align-items: center; gap: 22px; padding: 13px 20px; min-height: 48px; background: var(--accent); color: #10212c; border: 1px solid var(--accent); border-radius: 6px; font-size: .9rem; font-weight: 650; transition: background .18s, border-color .18s; }
.btn:hover { background: #a5dcff; border-color: #a5dcff; color: #10212c; }
.btn-outline { background: transparent; border-color: #47505d; color: var(--text); }
.btn-outline:hover { background: #262c35; border-color: #738094; color: var(--text); }
.hero-note { margin-top: 28px; font-size: .8rem; color: var(--muted); }
.hero-feature { background: #1d2631; border-radius: 12px; overflow: hidden; }
.feature-top { display: flex; justify-content: space-between; gap: 12px; padding: 22px 24px; font-size: .65rem; letter-spacing: .09em; color: #c5d3e3; }
.status-dot { display: inline-flex; align-items: center; gap: 8px; letter-spacing: 0; }
.status-dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: #b5adf6; flex-shrink: 0; }
.feature-stage { height: 350px; overflow: hidden; padding: 16px 60px 0; background: radial-gradient(ellipse at center, #33475b, #1d2631 70%); }
.feature-stage img { width: 245px; height: auto; margin-inline: auto; border: 6px solid #0e151d; border-radius: 26px; box-shadow: 0 20px 50px #0006; }
figcaption { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 22px 24px; }
figcaption strong { display: block; font-size: 1.1rem; }
figcaption span { display: block; color: #c5d3e3; font-size: .75rem; }
figcaption a { display: grid; place-items: center; min-width: 44px; min-height: 44px; font-size: 1.4rem; }
section { padding-block: 72px; border-top: 1px solid var(--line); }
h2 { font-size: clamp(2rem, 3.5vw, 3rem); line-height: 1.15; letter-spacing: -.04em; margin-bottom: 20px; font-weight: 650; }
h3 { font-size: 1.3rem; line-height: 1.3; letter-spacing: -.02em; margin-bottom: 12px; }
.section-intro { max-width: 650px; color: var(--muted); margin-bottom: 32px; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.card { min-width: 0; }
.project-card { overflow: hidden; border-radius: 10px; background: var(--surface); }
.project-visual { height: 290px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 20px; overflow: hidden; }
.project-visual.ibuf { background: #ecf3f5; align-items: stretch; justify-content: flex-start; }
.project-visual.ibuf img { width: 100%; height: 100%; object-fit: cover; object-position: top left; }
.project-visual.planova { background: #192039; }
.project-visual.planova img { width: 108px; height: 108px; border-radius: 23px; }
.project-visual.wardrobe { background: #152b28; }
.project-visual.wardrobe img { width: 150px; height: 150px; object-fit: contain; }
.visual-name { font-size: 1.75rem; letter-spacing: -.04em; font-weight: 650; }
.project-visual.myhome { background: #24384c; padding-top: 28px; justify-content: flex-start; }
.project-visual.myhome img { width: 210px; height: auto; border: 5px solid #14202c; border-radius: 20px; }
.project-body { padding: 28px; }
.project-body .eyebrow { margin-bottom: 12px; font-size: .62rem; }
.project-status { display: inline-block; margin-bottom: 12px; font-size: .75rem; color: #d2cafa; }
.project-card:first-child .project-status { color: #9dddbb; }
.project-body h3 { font-size: 1.7rem; }
.project-body > p:not(.eyebrow):not(.project-link) { color: var(--muted); }
.tag { display: inline-block; margin: 20px 16px 0 0; font-size: .75rem; color: #b6d3e5; }
.project-details { margin-top: 20px; font-size: .85rem; color: var(--muted); }
summary { cursor: pointer; color: var(--text); padding-block: 8px; }
summary:hover { color: var(--accent); }
ul { padding-left: 20px; }
li + li { margin-top: 7px; }
details ul { margin: 12px 0; }
.project-link { padding-top: 22px; font-size: .85rem; color: var(--accent); }
.subsection-title { margin-top: 44px; margin-bottom: 22px; }
.grid > .card:not(.project-card) { padding: 24px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.grid > .card:not(.project-card) h3 { color: var(--text); }
section > .card:not(.timeline-item) { max-width: 800px; color: var(--muted); font-size: 1.05rem; }
.interests { margin-top: 28px; color: var(--muted); }
.interests p { margin-block: 12px; }
.skills-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 36px; }
.skill-group h3 { margin-bottom: 18px; font-size: 1rem; }
.skills { display: flex; flex-direction: column; gap: 8px; }
.skill { color: var(--muted); font-size: .9rem; }
.timeline-item { position: relative; border-left: 1px solid #47505d; margin-left: 5px; padding: 0 0 30px 28px; max-width: 800px; }
.timeline-item::before { content: ""; position: absolute; top: 8px; left: -4px; width: 7px; height: 7px; background: var(--accent); border-radius: 50%; }
.timeline-item p { margin-top: 8px; color: var(--muted); font-size: .9rem; }
.cert-details { margin-top: 12px; }
.cert-details summary { font-size: .85rem; color: var(--accent); }
.cert-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-top: 14px; }
.cert-item { padding: 14px 0; border-top: 1px solid var(--line); }
.cert-item h4 { font-size: .85rem; margin-bottom: 6px; }
.cert-link { font-size: .8rem; color: var(--accent); display: inline-block; padding-block: 8px; }
.contact-section { padding-block: 80px 96px; }
.contact-section h2 { font-size: clamp(2.75rem, 6vw, 5.25rem); }
.contact-section .section-intro { max-width: 540px; }
.contact-links { display: flex; flex-wrap: wrap; gap: 20px 32px; margin-top: 32px; color: var(--muted); font-size: .85rem; }
.contact-links a { overflow-wrap: anywhere; }
footer { border-top: 1px solid var(--line); padding: 26px 32px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; color: var(--muted); font-size: .75rem; }
@media (max-width: 900px) {
  .hero { gap: 36px; }
  .feature-stage { padding-inline: 24px; height: 310px; }
  .feature-stage img { width: 215px; }
  .feature-top { padding: 18px; font-size: .6rem; }
  .project-visual { height: 240px; }
  .skills-grid { gap: 24px; }
}
@media (max-width: 680px) {
  .container { width: calc(100% - 40px); }
  .masthead { min-height: 80px; gap: 12px; flex-wrap: wrap; padding-block: 15px; }
  .site-nav { gap: 14px; font-size: .75rem; }
  .wordmark { font-size: 1.4rem; }
  .lang-switch a { padding: 8px; }
  .hero { grid-template-columns: 1fr; gap: 36px; padding-block: 48px 56px; }
  h1 { font-size: clamp(2.7rem, 10vw, 4rem); }
  .hero-lead { font-size: 1.6rem; }
  .hero-description { font-size: .95rem; }
  .hero-feature { max-width: 460px; width: 100%; }
  .feature-stage { height: 270px; }
  section { padding-block: 48px; }
  .grid, .skills-grid { grid-template-columns: 1fr; gap: 24px; }
  .project-visual { height: 260px; }
  .project-body { padding: 24px; }
  .skill-group { border-top: 1px solid var(--line); padding-top: 20px; }
  .skills { flex-direction: row; flex-wrap: wrap; gap: 8px 20px; }
  .contact-section { padding-block: 56px 64px; }
  .cert-grid { grid-template-columns: 1fr; }
  footer { padding-inline: 20px; }
}
@media (max-width: 360px) {
  .site-nav { order: 3; width: 100%; justify-content: space-between; }
  .buttons { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}