/* Základní styl pro všechny sekce */
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: #0f0f0f;
  color: #f1f1f1;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center; /* výchozí centrování */
  align-items: center;
  text-align: center;
  padding: 0 2rem;
  box-sizing: border-box;
}

/* Dots navigace */
.dot-container {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.75rem;
  z-index: 100;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #444;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
}

.dot.active {
  background: #fff;
  transform: scale(1.3);
}

/* Tabulky a text */
.portfolio-table {
  border-collapse: collapse;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}

.portfolio-table th, .portfolio-table td {
  border: 1px solid #333;
  padding: 1rem;
  text-align: left;
}

.portfolio-table th { background-color: #1a1a1a; }
.portfolio-table td { background-color: #121212; }
.portfolio-table tr:hover td { background-color: #1c1c1c; }

a { color: #4fa3f7; text-decoration: none; }
a:hover { text-decoration: underline; }
ul { padding: 0; list-style: none; }
p, h1, h2 { margin: 0.5rem 0; }

/* ===== Responsivní úprava pro mobil ===== */
@media (max-width: 768px) {
  /* Všechny sekce zůstávají centrované, protože Portfolio se vejde */
  section {
    justify-content: center;
    padding-top: 2rem; 
    padding-bottom: 2rem;
  }
}