@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --clr-bg:           #080c18;
  --clr-bg-card:      #0d1426;
  --clr-bg-card-alt:  #101828;
  --clr-border:       #1a2d4d;
  --clr-border-hover: #2a4a7f;

  --clr-blue:         #3b82f6;
  --clr-blue-dim:     #2563eb;
  --clr-blue-glow:    rgba(59, 130, 246, 0.35);
  --clr-blue-subtle:  rgba(59, 130, 246, 0.08);

  --clr-text:         #e2e8f0;
  --clr-text-muted:   #94a3b8;
  --clr-text-dim:     #64748b;
  --clr-white:        #ffffff;

  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;

  --transition: 0.25s ease;
  --transition-slow: 0.4s ease;

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px var(--clr-blue-glow);

  --progress-height: 3px;

  --present-scale: 1;
}

body.presentation-mode {
  --present-scale: 1.12;
  font-size: calc(1rem * var(--present-scale));
}

body.presentation-mode .nav,
body.presentation-mode .progress-bar,
body.presentation-mode .breadcrumb {
  opacity: 0;
  pointer-events: none;
}

body.presentation-mode .page-wrapper {
  padding-top: var(--space-lg);
}

body.presentation-mode .section-card {
  padding: var(--space-lg);
}

body.presentation-mode h1 { font-size: 3.2rem; }
body.presentation-mode h2 { font-size: 2rem; }
body.presentation-mode p,
body.presentation-mode li { font-size: 1.15rem; line-height: 1.85; }

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  min-height: 100vh;
  overflow-x: hidden;
  /* Subtelna siatka w tle */
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

a {
  color: var(--clr-blue);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: var(--clr-text); }

ul { list-style: none; }

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

/* ── Pasek postępu scrollowania ───────────────────────────── */
#progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: var(--progress-height);
  background: linear-gradient(90deg, var(--clr-blue-dim), var(--clr-blue));
  z-index: 1000;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px var(--clr-blue-glow);
}

/* ── Nawigacja ────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: var(--progress-height);
  left: 0;
  right: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem var(--space-lg);
  background: rgba(8, 12, 24, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--clr-border);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--clr-white);
  letter-spacing: -0.02em;
}

.nav-logo span {
  color: var(--clr-blue);
}

/* Burger button */
.burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.burger:hover {
  border-color: var(--clr-blue);
  box-shadow: 0 0 12px var(--clr-blue-glow);
}

.burger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Przycisk trybu prezentacyjnego — fixed, zawsze widoczny */
.btn-present {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 950;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  box-shadow: 0 4px 20px rgba(0,0,0,0.4);
}

.btn-present:hover {
  border-color: var(--clr-blue);
  color: var(--clr-blue);
  box-shadow: 0 4px 24px var(--clr-blue-glow);
}

.btn-present.active {
  background: var(--clr-blue-subtle);
  border-color: var(--clr-blue);
  color: var(--clr-blue);
  box-shadow: 0 0 20px var(--clr-blue-glow);
}

.btn-present svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* W trybie prezentacyjnym przycisk przesuwa się do górnego rogu */
body.presentation-mode .btn-present {
  bottom: auto;
  top: 1rem;
  right: 1rem;
  opacity: 0.4;
  font-size: 0.72rem;
  padding: 0.35rem 0.75rem;
}

body.presentation-mode .btn-present:hover {
  opacity: 1;
}

.nav-actions {
  display: flex;
  align-items: center;
}

/* ── Menu drawer ──────────────────────────────────────────── */
.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 800;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.menu-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

.menu-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background: var(--clr-bg-card);
  border-left: 1px solid var(--clr-border);
  z-index: 850;
  padding: var(--space-xl) var(--space-md);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  overflow-y: auto;
}

.menu-drawer.open {
  transform: translateX(0);
}

.menu-drawer-title {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-blue);
  margin-bottom: var(--space-md);
  margin-top: 1cm;
}

.menu-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.menu-nav-list a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--clr-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition);
  border: 1px solid transparent;
}

.menu-nav-list a:hover,
.menu-nav-list a.active {
  background: var(--clr-blue-subtle);
  border-color: var(--clr-border-hover);
  color: var(--clr-text);
}

.menu-nav-list a .menu-icon {
  width: 16px;
  height: 16px;
  opacity: 0.6;
}

/* ── Breadcrumb ───────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem var(--space-lg);
  font-size: 0.8rem;
  color: var(--clr-text-dim);
  border-bottom: 1px solid rgba(26, 45, 77, 0.5);
  background: rgba(8, 12, 24, 0.5);
}

.breadcrumb a {
  color: var(--clr-text-dim);
  transition: color var(--transition);
}

.breadcrumb a:hover { color: var(--clr-blue); }

.breadcrumb-sep {
  opacity: 0.4;
  font-size: 0.75rem;
}

.breadcrumb-current {
  color: var(--clr-blue);
  font-weight: 500;
}

/* ── Page wrapper ─────────────────────────────────────────── */
.page-wrapper {
  padding-top: 60px; /* wysokość navu */
  min-height: 100vh;
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Kontener ─────────────────────────────────────────────── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ── Typografia ───────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; }
h3 { font-size: 1.2rem; font-weight: 600; }
h4 { font-size: 1rem;   font-weight: 600; }

p { font-size: 1rem; color: var(--clr-text); }
p + p { margin-top: 0.75rem; }

.text-muted  { color: var(--clr-text-muted); }
.text-blue   { color: var(--clr-blue); }
.text-small  { font-size: 0.85rem; }

/* ── Karty sekcji ─────────────────────────────────────────── */
.section-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-lg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.section-card:hover {
  border-color: var(--clr-border-hover);
  box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.1), var(--shadow-card);
}

.section-card .card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--clr-blue-subtle);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
  font-size: 1.3rem;
}

.section-card h3 {
  margin-bottom: 0.5rem;
}

/* ── Grid kart ────────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.cards-grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-md);
}

/* ── Listy ────────────────────────────────────────────────── */
.styled-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.styled-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.styled-list li::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-blue);
  flex-shrink: 0;
  margin-top: 0.55rem;
}

/* ── Badge / tag ──────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-blue {
  background: var(--clr-blue-subtle);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: var(--clr-blue);
}

.badge-green {
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.2);
  color: #4ade80;
}

.badge-orange {
  background: rgba(249, 115, 22, 0.08);
  border: 1px solid rgba(249, 115, 22, 0.2);
  color: #fb923c;
}

/* ── Divider ──────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-border), transparent);
  margin: var(--space-lg) 0;
}

/* ── Sekcja nagłówkowa podstron ───────────────────────────── */
.page-hero {
  padding: var(--space-lg) 0 var(--space-md);
}

.page-hero .hero-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-blue);
  margin-bottom: 0.75rem;
}

.page-hero .hero-label::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--clr-blue);
}

.page-hero h1 {
  margin-bottom: 0.75rem;
}

.page-hero .hero-desc {
  color: var(--clr-text-muted);
  font-size: 1.05rem;
  max-width: 600px;
}

/* ── Obraz komponentu na podstronie ───────────────────────── */
.component-image-wrap {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  background: var(--clr-bg-card);
  margin-bottom: var(--space-lg);
  position: relative;
}

.component-image-wrap img {
  width: 100%;
  height: 100%;
 
  object-fit: cover;
  display: block;
}

.component-image-wrap .img-caption {
  padding: 0.6rem var(--space-sm);
  font-size: 0.78rem;
  color: var(--clr-text-dim);
  border-top: 1px solid var(--clr-border);
  text-align: center;
}

/* Placeholder kiedy brak obrazu */
.img-placeholder {
  width: 100%;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background: var(--clr-bg-card-alt);
  color: var(--clr-text-dim);
  font-size: 0.85rem;
}

.img-placeholder .img-ph-icon {
  font-size: 2.5rem;
  opacity: 0.4;
}

/* ── Sekcje treści (5 kart na podstronach) ────────────────── */
.content-sections {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding-bottom: var(--space-xl);
}

.content-section {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.content-section:hover {
  border-color: var(--clr-border-hover);
}

.content-section .section-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--clr-border);
  background: rgba(59, 130, 246, 0.04);
}

.section-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--clr-blue-subtle);
  border: 1px solid rgba(59, 130, 246, 0.2);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--clr-blue);
  flex-shrink: 0;
}

.content-section .section-body {
  padding: var(--space-md) var(--space-lg);
}

/* Parametry jako grid */
.params-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.param-item {
  background: var(--clr-bg-card-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 0.9rem 1rem;
  transition: border-color var(--transition);
}

.param-item:hover {
  border-color: var(--clr-border-hover);
}

.param-item .param-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-dim);
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.param-item .param-value {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text);
}

.param-item .param-desc {
  font-size: 0.78rem;
  color: var(--clr-text-muted);
  margin-top: 0.15rem;
}

/* Ciekawostka */
.fun-fact-box {
  display: flex;
  gap: 1rem;
  padding: 1rem var(--space-sm);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.07), rgba(59, 130, 246, 0.03));
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-md);
  margin-top: 0.5rem;
}

.fun-fact-box .fact-emoji {
  font-size: 1.6rem;
  flex-shrink: 0;
  line-height: 1.3;
}

.fun-fact-box .fact-text {
  font-size: 0.93rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
}

/* Problemy */
.problem-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.problem-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  background: var(--clr-bg-card-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  transition: border-color var(--transition);
}

.problem-item:hover {
  border-color: rgba(249, 115, 22, 0.3);
}

.problem-item .problem-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f97316;
  flex-shrink: 0;
  margin-top: 0.4rem;
}

/* ── Nawigacja między stronami ────────────────────────────── */
.page-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  padding: var(--space-lg) 0 var(--space-xl);
}

.page-nav-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem var(--space-sm);
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  color: var(--clr-text-muted);
  transition: all var(--transition);
  text-decoration: none;
}

.page-nav-btn:hover {
  border-color: var(--clr-blue);
  color: var(--clr-text);
  box-shadow: 0 0 16px var(--clr-blue-glow);
}

.page-nav-btn.next { justify-content: flex-end; text-align: right; }
.page-nav-btn.prev { justify-content: flex-start; }

.page-nav-btn .nav-btn-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-text-dim);
  display: block;
}

.page-nav-btn .nav-btn-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--clr-text);
  display: block;
}

.page-nav-btn .nav-arrow {
  font-size: 1.1rem;
  color: var(--clr-blue);
  flex-shrink: 0;
}

/* ── Strona główna ────────────────────────────────────────── */
.home-hero {
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
}

.home-hero .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  background: var(--clr-blue-subtle);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--clr-blue);
  margin-bottom: var(--space-sm);
}

.home-hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  margin-bottom: 1rem;
  line-height: 1.05;
}

.home-hero h1 .title-accent {
  color: var(--clr-blue);
  position: relative;
}

.home-hero .subtitle {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--clr-text-muted);
  max-width: 560px;
  margin: 0 auto var(--space-md);
  line-height: 1.7;
}

.home-hero .cta-text {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--clr-text-dim);
  border: 1px dashed var(--clr-border);
  border-radius: 999px;
  padding: 0.5rem 1.2rem;
}

.home-hero .cta-text .cta-arrow {
  color: var(--clr-blue);
}

/* ── Interaktywna mapa ────────────────────────────────────── */
.map-section {
  padding: var(--space-md) 0 var(--space-xl);
}

.map-container {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--clr-border);
  box-shadow: var(--shadow-card), 0 0 40px rgba(59, 130, 246, 0.08);
}

.map-container img {
  width: 100%;
  display: block;
}

/* Placeholder obrazu mapy */
.map-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--clr-bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--clr-text-dim);
  flex-direction: column;
  gap: 0.5rem;
}

.map-placeholder .map-ph-icon { font-size: 3rem; opacity: 0.2; }

/* Hotspoty na mapie */
.map-hotspots {
  position: absolute;
  inset: 0;
}

.hotspot {
  position: absolute;
  transform: translate(-50%, -50%);
  cursor: pointer;
  z-index: 10;
}

/* Punkt bazowy */
.hotspot-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.25);
  border: 2px solid var(--clr-blue);
  box-shadow: 0 0 10px var(--clr-blue-glow);
  transition: all 0.2s ease;
  position: relative;
}

.hotspot-dot::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--clr-blue);
}

/* Hover na hotspot */
.hotspot:hover .hotspot-dot {
  background: rgba(59, 130, 246, 0.45);
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.6), 0 0 40px rgba(59, 130, 246, 0.2);
  transform: scale(1.25);
}

/* Tooltip */
.hotspot-tooltip {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border-hover);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.8rem;
  font-size: 0.78rem;
  font-weight: 600;
  font-family: var(--font-display);
  color: var(--clr-white);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateX(-50%) translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
}

.hotspot-tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--clr-border-hover);
}

.hotspot:hover .hotspot-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Kursor pointer hint */
.hotspot::before {
  content: 'kliknij';
  position: absolute;
  bottom: calc(100% + 34px);
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  color: var(--clr-text-dim);
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
  white-space: nowrap;
}

.hotspot:hover::before { opacity: 1; }

/* Link całego hotspotu */
.hotspot a {
  display: block;
}

/* ── Siatka komponentów (kafelki pod mapą) ────────────────── */
.components-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.component-tile {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.1rem 1rem;
  text-align: center;
  text-decoration: none;
  color: var(--clr-text-muted);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.component-tile:hover {
  border-color: var(--clr-blue);
  color: var(--clr-text);
  background: var(--clr-blue-subtle);
  box-shadow: 0 0 16px var(--clr-blue-glow);
  transform: translateY(-2px);
}

.component-tile .tile-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.component-tile .tile-name {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
}

.component-tile .tile-en {
  font-size: 0.7rem;
  color: var(--clr-text-dim);
}

/* ── Strona ports.html ────────────────────────────────────── */
.ports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.port-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  transition: all var(--transition);
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
}

.port-card:hover {
  border-color: var(--clr-border-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.port-card .port-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--clr-blue-subtle);
  border: 1px solid rgba(59, 130, 246, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.port-card .port-name {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: 0.2rem;
}

.port-card .port-desc {
  font-size: 0.8rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
}

/* ── Diagnostyka ──────────────────────────────────────────── */
.diag-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding-bottom: var(--space-xl);
}

.diag-item {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition);
}

.diag-item.open {
  border-color: var(--clr-border-hover);
}

.diag-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem var(--space-md);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition);
}

.diag-header:hover {
  background: rgba(59, 130, 246, 0.04);
}

.diag-header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.diag-severity {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.severity-high   { background: #ef4444; box-shadow: 0 0 6px rgba(239,68,68,0.5); }
.severity-medium { background: #f97316; box-shadow: 0 0 6px rgba(249,115,22,0.5); }
.severity-low    { background: #eab308; box-shadow: 0 0 6px rgba(234,179,8,0.5); }

.diag-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text);
}

.diag-toggle {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-muted);
  font-size: 1rem;
  transition: all var(--transition);
  flex-shrink: 0;
}

.diag-item.open .diag-toggle {
  background: var(--clr-blue-subtle);
  border-color: rgba(59, 130, 246, 0.3);
  color: var(--clr-blue);
  transform: rotate(45deg);
}

.diag-body {
  display: none;
  padding: 0 var(--space-md) var(--space-md);
  border-top: 1px solid var(--clr-border);
}

.diag-item.open .diag-body {
  display: block;
}

.diag-causes {
  margin-top: var(--space-sm);
}

.diag-causes h4 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-text-dim);
  margin-bottom: 0.6rem;
}

/* Drzewko diagnostyczne */
.diag-tree {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: var(--space-sm);
}

.diag-tree-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--clr-text-dim);
  margin-bottom: 0.5rem;
}

.tree-step {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-left: 2px solid var(--clr-border);
  margin-left: 0.5rem;
  padding-left: 1rem;
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  position: relative;
}

.tree-step::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 2px;
  background: var(--clr-border);
}

.tree-step:last-child {
  border-left-color: var(--clr-blue);
}

.tree-step:last-child::before {
  background: var(--clr-blue);
}

.tree-step .step-num {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--clr-bg-card-alt);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--clr-text-dim);
  flex-shrink: 0;
}

/* ── Footer ───────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--clr-border);
  padding: var(--space-md) 0;
  text-align: center;
  font-size: 0.78rem;
  color: var(--clr-text-dim);
}

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb {
  background: var(--clr-border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--clr-border-hover); }

/* ── Responsywność ────────────────────────────────────────── */
@media (max-width: 768px) {
  :root {
    --space-lg: 1.25rem;
    --space-xl: 2.5rem;
  }

  .home-hero { padding: var(--space-lg) 0; }
  .page-nav  { grid-template-columns: 1fr; }

  .params-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .components-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .content-section .section-header {
    padding: 0.9rem var(--space-sm);
  }

  .content-section .section-body {
    padding: 0.9rem var(--space-sm);
  }
}

@media (max-width: 480px) {
  .components-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ports-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Utility ──────────────────────────────────────────────── */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}