/* ═══════════════════════════════════════════════════════════════
   project.css — styles for individual project detail pages
   ═══════════════════════════════════════════════════════════════ */

/* ── Hero ────────────────────────────────────────────────────── */
.proj-hero {
  background: var(--navy);
  color: #fff;
  padding: 5rem 0 3rem;
  margin-top: var(--nav-h);
}
.proj-hero-tag {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: #C9A84C;
  text-transform: uppercase;
  margin-bottom: .75rem;
}
.proj-hero-title {
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: .6rem;
  color: #fff;
}
.proj-hero-sub {
  font-size: 1.05rem;
  color: #a8c8e8;
  margin-bottom: .4rem;
}
.proj-hero-date {
  font-size: .9rem;
  color: #C9A84C;
  font-style: italic;
}

/* ── Summary banner ──────────────────────────────────────────── */
.proj-summary {
  background: #1e3a5f;
  border-left: 4px solid #C9A84C;
  padding: 1.5rem 0;
}
.proj-summary p {
  color: #d0e4f4;
  font-size: .97rem;
  line-height: 1.7;
  margin: 0;
}

/* ── Main content area ───────────────────────────────────────── */
.proj-main {
  padding: 3rem 0 4rem;
}
.proj-content {
  max-width: 860px;
}
.proj-content p {
  line-height: 1.75;
  margin-bottom: 1rem;
  color: var(--text);
}

/* ── Section headings ────────────────────────────────────────── */
.proj-section {
  color: var(--navy);
  font-size: 1.3rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  padding-bottom: .35rem;
  border-bottom: 2px solid var(--navy-light);
}
.proj-subsection {
  color: var(--navy);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 1.8rem 0 .7rem;
}

/* ── Innovation box ──────────────────────────────────────────── */
.proj-box {
  border-radius: 6px;
  margin: 1.5rem 0;
  overflow: hidden;
}
.proj-box-title {
  font-size: .85rem;
  font-weight: 700;
  padding: .6rem 1rem;
  letter-spacing: .01em;
}
.proj-box-body {
  padding: 1rem 1.2rem;
  font-size: .93rem;
  line-height: 1.7;
  color: var(--text);
  background: #fff;
}
.proj-box-body p { margin-bottom: .75rem; }
.proj-box-body p:last-child { margin-bottom: 0; }
.proj-box-body ul { margin: .5rem 0 .75rem 1.2rem; }
.proj-box-body li { margin-bottom: .35rem; }
.proj-box-body a { color: #2d7dd2; text-decoration: underline; }
.proj-box-body a:hover { opacity: .75; }
.proj-hero-date a { color: #e8c97a; text-decoration: underline; }
.proj-hero-date a:hover { color: #fff; }

/* Innovation style — blue */
.proj-box--innovation {
  border: 1px solid #2d7dd2;
}
.proj-box--innovation .proj-box-title {
  background: var(--navy);
  color: #fff;
}
.proj-box--innovation .proj-box-body {
  background: #f4f8fd;
  color: var(--text);
}

/* Result style — green */
.proj-box--result {
  border: 1.5px solid #28a745;
}
.proj-box--result .proj-box-title {
  background: #28a745;
  color: #fff;
}
.proj-box--result .proj-box-body {
  background: #f0faf3;
  color: var(--text);
}

/* Note style — light blue */
.proj-box--note {
  border: 1px solid #2d7dd2;
}
.proj-box--note .proj-box-title {
  background: #d0e4f4;
  color: var(--navy);
}
.proj-box--note .proj-box-body {
  background: #e8f2fb;
  color: var(--text);
}

/* ── Code block ──────────────────────────────────────────────── */
.proj-code {
  background: #1E2533;
  color: #A8D8A8;
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: .82rem;
  line-height: 1.55;
  padding: 1.1rem 1.3rem;
  border-radius: 5px;
  overflow-x: auto;
  margin: 1.2rem 0;
  white-space: pre;
}
.proj-code code { background: none; padding: 0; color: inherit; }

/* ── Figure / image ──────────────────────────────────────────── */
.proj-figure {
  margin: 1.5rem 0;
  text-align: center;
}
.proj-figure img {
  max-width: 100%;
  border-radius: 4px;
  box-shadow: 0 2px 12px rgba(0,0,0,.12);
}

/* ── Table ───────────────────────────────────────────────────── */
.proj-table-wrap {
  overflow-x: auto;
  margin: 1.2rem 0;
}
.proj-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .88rem;
}
.proj-table th {
  background: var(--navy);
  color: #fff;
  font-weight: 600;
  padding: .55rem .8rem;
  text-align: left;
}
.proj-table td {
  padding: .5rem .8rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.55;
}
.proj-table tr:nth-child(even) td { background: var(--surface); }

/* ── List ────────────────────────────────────────────────────── */
.proj-list {
  padding-left: 1.4rem;
  margin: .6rem 0 1rem;
}
.proj-list li {
  margin-bottom: .45rem;
  line-height: 1.65;
}

/* ── math inline ─────────────────────────────────────────────── */
em.math {
  font-style: italic;
  font-family: 'Georgia', serif;
}

/* ── Shared project footer ───────────────────────────────────── */
footer.site-footer {
  background: var(--navy-dark, #06090f);
  color: #6a8aaa;
  text-align: center;
  padding: 2rem 1.5rem;
  font-size: .83rem;
}
footer.site-footer .footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: .5rem 1.5rem;
  margin-bottom: 1rem;
}
footer.site-footer .footer-links a,
footer.site-footer a { color: #8aaed0; text-decoration: none; }
footer.site-footer .footer-links a:hover,
footer.site-footer a:hover { color: #c9a84c; text-decoration: underline; }
footer.site-footer .footer-back { font-size: .8rem; }

/* ── Sticky prev/next nav bar ────────────────────────────────── */
.proj-nav-sticky {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 56px;
  background: rgba(6, 9, 15, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid rgba(201, 168, 76, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  z-index: 200;
  gap: 1rem;
}
body.has-sticky-nav { padding-bottom: 56px; }

.proj-nav-sticky-btn {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .45rem 1.25rem;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.11);
  border-radius: 6px;
  color: #c0c4d0;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: background .15s, color .15s, border-color .15s;
  min-width: 80px;
  flex: 1;
  max-width: 44%;
  overflow: hidden;
}
.proj-nav-sticky-btn:hover {
  background: rgba(201, 168, 76, 0.14);
  border-color: #c9a84c;
  color: #c9a84c;
}
.pns-arrow { font-size: 1.15rem; line-height: 1; flex-shrink: 0; }
.pns-label { font-size: .9rem; flex-shrink: 0; }
.pns-title {
  font-size: .78rem;
  font-weight: 400;
  color: #8aaed0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
  opacity: .85;
}
.proj-nav-sticky-btn:hover .pns-title { color: inherit; opacity: 1; }
.pns-home {
  font-size: 1.25rem;
  color: #c0c4d0;
  text-decoration: none;
  padding: .45rem .9rem;
  border-radius: 6px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.11);
  transition: background .15s, color .15s, border-color .15s;
  flex-shrink: 0;
  line-height: 1;
}
.pns-home:hover {
  background: rgba(201, 168, 76, 0.14);
  border-color: #c9a84c;
  color: #c9a84c;
}

/* ── Footer nav (legacy, keep for fallback) ──────────────────── */
.proj-nav-btns {
  display: flex;
  gap: .75rem;
  flex-wrap: wrap;
  margin-top: .5rem;
}

/* ── Language notice (EN only) ───────────────────────────────── */
.proj-lang-notice {
  display: none;
  background: #fff8e1;
  border-left: 4px solid #C9A84C;
  border-radius: 4px;
  padding: .65rem 1rem;
  font-size: .85rem;
  color: #6d4c0a;
  margin-bottom: 1.5rem;
}
html[lang="en"] .proj-lang-notice { display: block; }
html[lang="pl"] .proj-lang-notice { display: none; }

/* ── Dark mode adjustments ───────────────────────────────────── */
@media (prefers-color-scheme: dark) {
  .proj-box--result { background: #0d2a14; }
  .proj-box--note   { background: #0d1e2e; }
}