* { 
  margin: 0; 
  padding: 0; 
  box-sizing: border-box; 
}


:root {
  --bg-color: #e8ecef;                   
  --overlay: rgba(220, 224, 230, 0.60);  
  --panel: rgba(240, 243, 246, 0.92);    
  --panel-strong: #e2e6ea;
  --border: rgba(0, 0, 0, 0.12);         
  --text: #1a1a1a;                       
  --muted: #555555;                      
  --btn: rgba(0, 0, 0, 0.06);            
  --btn-hover: rgba(0, 0, 0, 0.12);
  --auth-bg: rgba(240, 243, 246, 0.92);
  --ad-bg: rgba(228, 232, 237, 0.70);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}


body.dark-mode {
  --bg-color: #0d0d0d;
  --overlay: rgba(0, 0, 0, 0.85);        
  --panel: rgba(18, 18, 18, 0.92);       
  --panel-strong: #121212;
  --border: rgba(255, 255, 255, 0.12);   
  --text: #f1f1f1;                       
  --muted: #aaaaaa;                      
  --btn: rgba(255, 255, 255, 0.08);      
  --btn-hover: rgba(255, 255, 255, 0.18);
  --auth-bg: rgba(20, 20, 20, 0.92);
  --ad-bg: rgba(10, 10, 10, 0.65);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.7);
}

html, body {
  height: 100%;
  font-family: 'Courier New', Courier, monospace;
  color: var(--text);
  background-image: url("/czot/bg.png");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-color: var(--bg-color);
  display: flex;
  flex-direction: column;
  transition: color 0.3s, background-color 0.3s;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 0;
  transition: background 0.3s;
}

header, .strona-uklad, .sektor-memiczny, footer {
  position: relative;
  z-index: 10;
}

a {
  color: var(--text);
  text-decoration: underline;
}

a:hover {
  color: var(--muted);
}

header {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(3px);             /* Zmniejszono rozmycie z 8px na 3px */
  -webkit-backdrop-filter: blur(3px);
  transition: background 0.3s, border-color 0.3s;
}

#logo {
  height: 42px;
  width: auto;
  cursor: pointer;
  transition: opacity 0.2s;
  display: block;
}

#logo:hover {
  opacity: 0.8;
}

header nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-toggle, .theme-toggle, .bg-toggle {
  background: var(--btn);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .15s, background .2s, border-color .2s;
}

.lang-toggle:hover, .theme-toggle:hover, .bg-toggle:hover {
  background: var(--btn-hover);
  transform: translateY(-1px);
}

.strona-uklad {
  display: flex;
  justify-content: center;
  align-items: stretch;
  flex: 1; 
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
  gap: 20px;
  width: 100%;
}

main {
  flex: 1; 
  display: flex;
  justify-content: center;
  align-items: center;
}

.sektor-memiczny {
  border: 2px dashed var(--border);
  background: var(--ad-bg);
  backdrop-filter: blur(2px);             /* Zmniejszono rozmycie z 4px na 2px */
  -webkit-backdrop-filter: blur(2px);
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  overflow: hidden;
  color: var(--muted);
  font-size: 14px;
  font-weight: bold;
  transition: background 0.3s, border-color 0.3s;
}

.memiczny-content {
  padding: 0;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.sektor-memiczny img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
  display: block;
}

.lewo, .prawo {
  flex: 0 0 200px;
  min-height: 400px;
}

.dol {
  max-width: 800px;
  margin: 0 auto 20px auto;
  width: calc(100% - 40px);
  height: 120px;
}

.auth-box {
  width: 100%;
  max-width: 420px;
  background: var(--auth-bg);
  border: 1px solid var(--border);
  padding: 30px;
  border-radius: 16px;
  backdrop-filter: blur(3px);             
  -webkit-backdrop-filter: blur(3px);
  box-shadow: var(--shadow);
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.auth-box h2 {
  text-align: center;
  margin-bottom: 24px;
  font-size: 22px;
  letter-spacing: 1px;
}

.menu-box a.menu-btn {
  display: block;
  width: 100%;
  padding: 16px 14px;
  margin-top: 20px;
  border-radius: 10px;
  background: var(--btn);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: inherit;
  font-weight: bold;
  font-size: 18px;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
}

.menu-box a.menu-btn:hover {
  background: var(--btn-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.menu-box a.menu-btn:active {
  transform: translateY(0);
  box-shadow: none;
}

footer {
  text-align: center;
  padding: 16px;
  font-size: 12px;
  color: var(--muted);
  margin-top: auto; 
}

/* Dynamiczny reset tła bez gifa */
body.no-bg {
    background-image: none !important;
    background-color: var(--bg-color) !important;
}

@media (max-width: 900px) {
  .strona-uklad {
    flex-direction: column;
    align-items: center;
    gap: 15px;
  }
  .lewo, .prawo {
    width: 100%;
    max-width: 420px;
    flex: none;
    min-height: 100px;
  }
  .strona-uklad aside:first-child { order: -1; } 
  main { order: 0; width: 100%; }                
  .strona-uklad aside:last-child { order: 1; }   
  header { padding: 10px 16px; }
  #logo { height: 34px; }
  header nav { gap: 10px; }
  .dol {
    height: auto;
    min-height: 80px;
  }
  .auth-box {
    padding: 24px 16px;
    border-radius: 14px;
  }
  .auth-box h2 {
    font-size: 20px;
    margin-bottom: 18px;
  }
  .menu-box a.menu-btn {
    padding: 14px 10px;
    font-size: 16px;
    margin-top: 14px;
  }
}