:root {
  --accent: #007EBD;
  --accent-dim: #1997d6;
  --accent-light: #0064a3;
  --card-bg: #007ebdbf;
  --card-bg-soft: #007ebd1f;
  --card-border: rgba(230, 230, 230, 0.75);
  --ink: #14181c;
  --ink-muted: #4a5560;
  --paper: #ffffff;
  --radius: 0.6em;
  --heading-font: "Petrona", Georgia, serif;
  --body-font: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --max-w: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--body-font);
  font-weight: 400;
  line-height: 1.6;
  color: var(--ink);
  background:
    radial-gradient(70em 40em at 15% -10%, #d8f0ff 0%, transparent 55%),
    radial-gradient(60em 40em at 110% 10%, #eaf7ff 0%, transparent 55%),
    linear-gradient(180deg, #f7fbfd 0%, #ffffff 40%, #f4faff 100%);
  background-attachment: fixed;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--heading-font);
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 0.5em;
}

p { margin: 0 0 1em; }

a { color: var(--accent-light); text-decoration: none; }
a:hover { color: var(--accent); }

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Topbar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(16px) saturate(160%);
  background: rgba(255, 255, 255, 0.72);
  border-bottom: 1px solid rgba(0, 126, 189, 0.12);
}
.topbar .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}
.brand {
  font-family: var(--heading-font);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
}
.brand span { color: var(--accent); }
.topnav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  font-size: 0.92rem;
}
.topnav a { color: var(--ink-muted); }
.topnav a:hover { color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.6em 1.3em;
  border-radius: 0.375em;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid var(--accent);
  color: var(--accent-light);
  background: transparent;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  cursor: pointer;
}
.btn:hover { background: var(--accent); color: #fff; }
.btn-solid {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 0.25em 0.6em -0.1em rgba(0, 126, 189, 0.45);
}
.btn-solid:hover { background: var(--accent-light); color: #fff; }

.copy-tip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 0.6em);
  transform: translateX(-50%);
  background: #14181c;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  padding: 0.4em 0.8em;
  border-radius: 0.4em;
  box-shadow: 0 0.4em 1em -0.3em rgba(0,0,0,0.4);
  pointer-events: none;
  animation: copy-tip-in 0.15s ease-out;
}
@keyframes copy-tip-in {
  from { opacity: 0; transform: translateX(-50%) translateY(4px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.btn-ghost-light {
  border-color: rgba(255,255,255,0.7);
  color: #fff;
}
.btn-ghost-light:hover { background: #fff; color: var(--accent-light); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: #0a1a26;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("img/edited-1b.jpg") center 30% / cover no-repeat;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(4,20,32,0.88) 0%, rgba(4,30,48,0.62) 45%, rgba(0,126,189,0.35) 100%);
}
.hero .wrap {
  position: relative;
  z-index: 2;
  padding-top: 4rem;
  padding-bottom: 4rem;
}
.hero-tag {
  display: inline-block;
  color: #cceeff;
  background: rgba(0,126,189,0.35);
  border: 1px solid rgba(204,238,255,0.4);
  padding: 0.3em 0.9em;
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1.3rem;
}
.hero h1 {
  color: #fff;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  max-width: 16em;
  margin-bottom: 0.6em;
}
.hero .tagline {
  color: #e6f5ff;
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  max-width: 38em;
  margin-bottom: 2.2rem;
}
.hero-card {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex-wrap: wrap;
  background: var(--card-bg);
  backdrop-filter: blur(20px) saturate(170%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  max-width: 34em;
  box-shadow: 0 0.6em 2em -0.6em rgba(0,0,0,0.5);
}
.hero-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255,255,255,0.75);
  flex-shrink: 0;
}
.hero-id { flex: 1; min-width: 12em; }
.hero-id strong { display: block; color: #fff; font-size: 1.05rem; }
.hero-id span { color: #d9f0ff; font-size: 0.88rem; }

/* ---------- Sections ---------- */
.section { padding: 6rem 0; }
.section.alt {
  background: linear-gradient(180deg, rgba(0,126,189,0.05), rgba(0,126,189,0));
}
.eyebrow {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.section h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  max-width: 20em;
}
.section .lede {
  color: var(--ink-muted);
  font-size: 1.1rem;
  max-width: 42em;
  margin-bottom: 2.5rem;
}

/* O mnie */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3rem;
  align-items: center;
}
.badge-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.7rem;
  margin: 1.5rem 0 2rem;
}
.badge {
  display: flex;
  align-items: baseline;
  gap: 0.4em;
  background: #fff;
  border: 1px solid rgba(0,126,189,0.18);
  border-radius: 0.5em;
  padding: 0.65em 0.9em;
  font-size: 0.92rem;
  box-shadow: 0 0.3em 0.8em -0.5em rgba(0,50,80,0.25);
}
.badge b { color: var(--accent-light); font-weight: 600; }
.badge span { color: var(--ink-muted); font-size: 0.88em; }
.about-photo {
  border-radius: 1em;
  overflow: hidden;
  box-shadow: 0 1.5em 3em -1em rgba(0,50,80,0.35);
}
.about-extra {
  margin-top: 2.5rem;
  padding-top: 2.2rem;
  border-top: 1px solid rgba(0,126,189,0.15);
  color: var(--ink-muted);
  max-width: 52em;
  font-size: 1.02rem;
}

/* Wiedza interdyscyplinarna */
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}
.glass-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px) saturate(170%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.8rem 1.7rem;
  color: #fff;
  box-shadow: 0 0.5em 1.6em -0.6em rgba(0,50,80,0.5);
}
.glass-card h3 {
  color: #fff;
  font-size: 1.15rem;
  margin-bottom: 0.5em;
}
.glass-card p {
  color: rgba(255,255,255,0.92);
  font-size: 0.96rem;
  margin: 0;
}

/* Zakres wspolpracy */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
}
.service-card {
  background: #fff;
  border: 1px solid rgba(0,126,189,0.14);
  border-radius: 0.8em;
  overflow: hidden;
  box-shadow: 0 0.6em 1.8em -0.9em rgba(0,50,80,0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 1em 2.2em -0.9em rgba(0,50,80,0.45);
}
.service-thumb {
  aspect-ratio: 1 / 1;
  width: 100%;
  object-fit: cover;
}
.service-body { padding: 1.3rem 1.4rem 1.6rem; }
.service-body h3 { font-size: 1.08rem; margin-bottom: 0.45em; }
.service-body p { color: var(--ink-muted); font-size: 0.94rem; margin: 0; }

/* Publikacje */
.pub-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 1.6rem;
}
.pub-main {
  background: #fff;
  border-radius: 0.9em;
  overflow: hidden;
  border: 1px solid rgba(0,126,189,0.14);
  box-shadow: 0 0.6em 1.8em -0.9em rgba(0,50,80,0.3);
}
.pub-main img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.pub-main .pub-body { padding: 1.6rem 1.7rem; }
.pub-side { display: flex; flex-direction: column; gap: 1.6rem; }
.pub-card {
  display: flex;
  gap: 1rem;
  align-items: center;
  background: #fff;
  border: 1px solid rgba(0,126,189,0.14);
  border-radius: 0.8em;
  padding: 1rem;
  box-shadow: 0 0.5em 1.4em -0.9em rgba(0,50,80,0.3);
}
.pub-card img {
  width: 72px;
  height: 72px;
  border-radius: 0.5em;
  object-fit: cover;
  flex-shrink: 0;
}
.pub-card h4 { font-size: 0.98rem; margin-bottom: 0.25em; }
.pub-card p { font-size: 0.85rem; color: var(--ink-muted); margin: 0; }
.pub-link { display: inline-block; margin-top: 1rem; font-weight: 600; }

.articles-heading {
  font-size: 1.3rem;
  margin: 3rem 0 1.5rem;
}
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}
.article-card {
  display: block;
  background: #fff;
  border: 1px solid rgba(0,126,189,0.14);
  border-radius: 0.8em;
  padding: 1.4rem 1.5rem;
  box-shadow: 0 0.5em 1.4em -0.9em rgba(0,50,80,0.3);
  transition: transform 0.2s, box-shadow 0.2s;
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 1em 2em -0.9em rgba(0,50,80,0.4);
}
.article-date {
  display: block;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.6em;
}
.article-card h4 {
  font-size: 1.02rem;
  line-height: 1.35;
  margin-bottom: 0.5em;
  color: var(--ink);
}
.article-card p {
  font-size: 0.88rem;
  color: var(--ink-muted);
  margin: 0 0 0.9em;
}
.article-card .pub-link { margin-top: 0; }

/* CTA */
.cta {
  position: relative;
  padding: 6rem 0;
  color: #fff;
  text-align: center;
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("img/gen-9.jpg") center 25% / cover no-repeat;
}
.cta::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4,20,32,0.85), rgba(0,64,100,0.8));
}
.cta .wrap { position: relative; z-index: 2; }
.cta h2 { color: #fff; margin: 0 auto 0.6em; }
.cta p { color: #dbeefc; max-width: 34em; margin: 0 auto 2rem; font-size: 1.05rem; }

/* Kontakt */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.contact-list { list-style: none; padding: 0; margin: 1.5rem 0 0; }
.contact-list li {
  display: flex;
  align-items: center;
  gap: 0.7em;
  padding: 0.7em 0;
  border-bottom: 1px solid rgba(0,126,189,0.12);
  font-size: 1rem;
}
.contact-list li:last-child { border-bottom: none; }
.contact-list .k { color: var(--ink-muted); min-width: 6em; font-size: 0.85em; text-transform: uppercase; letter-spacing: 0.04em; }
.quote-card {
  background: var(--card-bg);
  backdrop-filter: blur(20px) saturate(170%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 2.2rem;
  color: #fff;
}
.quote-card blockquote {
  margin: 0;
  font-family: var(--heading-font);
  font-size: 1.35rem;
  line-height: 1.4;
}
.quote-card cite {
  display: block;
  margin-top: 1rem;
  font-style: normal;
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
}

/* Footer */
footer {
  border-top: 1px solid rgba(0,126,189,0.15);
  padding: 2.5rem 0;
  color: var(--ink-muted);
  font-size: 0.88rem;
}
footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
footer .footlinks { display: flex; gap: 1.4rem; }
footer a { color: var(--ink-muted); }
footer a:hover { color: var(--accent); }

/* Modal formularza kontaktowego */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(6, 20, 32, 0.55);
  backdrop-filter: blur(6px);
}
.modal-overlay[hidden] { display: none; }
.modal-card {
  position: relative;
  width: 100%;
  max-width: 30em;
  max-height: 90vh;
  overflow-y: auto;
  background: #fff;
  border-radius: 1em;
  padding: 2.2rem 2rem;
  box-shadow: 0 2em 4em -1em rgba(0,20,40,0.4);
}
.modal-card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.3em;
}
.modal-sub {
  color: var(--ink-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2em;
  height: 2em;
  border: none;
  background: rgba(0,126,189,0.08);
  color: var(--ink-muted);
  border-radius: 50%;
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
}
.modal-close:hover { background: rgba(0,126,189,0.16); color: var(--ink); }

.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-muted);
  margin-bottom: 0.35em;
}
.field input, .field textarea {
  width: 100%;
  font-family: inherit;
  font-size: 0.98rem;
  padding: 0.6em 0.8em;
  border: 1px solid rgba(0,126,189,0.25);
  border-radius: 0.5em;
  background: #f8fbfd;
  color: var(--ink);
  resize: vertical;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0,126,189,0.15);
}
.field-hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.form-status {
  margin: 0.9rem 0 0;
  font-size: 0.9rem;
  min-height: 1.3em;
}
.form-status.ok { color: #1a7a2e; }
.form-status.err { color: #c62828; }

/* Responsive */
@media (max-width: 920px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-grid .about-photo { order: -1; }
  .knowledge-grid, .services-grid, .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .pub-grid { grid-template-columns: 1fr; }
  .topnav { display: none; }
}
@media (max-width: 600px) {
  .badge-grid, .knowledge-grid, .services-grid, .articles-grid { grid-template-columns: 1fr; }
  .section { padding: 3.5rem 0; }
  .hero { min-height: auto; padding-top: 2rem; }
}