/* RESET I PODSTAWY */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background: #f2f2f2;
  color: #333;
  line-height: 1.6;
}

/* LAYOUT GŁÓWNY */
header, nav, main, footer {
  max-width: 1200px;
  margin: 10px auto;
  padding: 15px;
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

/* NAGŁÓWEK */
header {
  text-align: center;
}

header h1 {
  font-size: 2.5em;
  color: #444;
  font-weight: 700;
}

/* NAWIGACJA */
nav {
  display: flex;
  justify-content: center;
  background: #f9f9f9;
}

nav a {
  padding: 10px 15px;
  margin: 0 5px;
  text-decoration: none;
  color: #333;
  font-weight: bold;
  border-radius: 4px;
  transition: all 0.3s;
}

nav a:hover {
  background: #e0e0e0;
}

nav a.active {
  background: #4CAF50;
  color: #fff;
}

/* GŁÓWNA SEKCJA */
main {
  padding: 20px;
}

/* ZAKŁADKI */
.tab-content {
  display: none;
  padding: 20px;
  background: #fafafa;
  border: 1px solid #ddd;
  border-radius: 4px;
}

.tab-content.active {
  display: block;
}

.tab-content h2 {
  margin-bottom: 15px;
  font-size: 1.5em;
  border-bottom: 2px solid #ccc;
  padding-bottom: 5px;
}

/* STRONA GŁÓWNA */
#home ul {
  list-style: disc;
  margin: 0 0 15px 20px;
}

#home a {
  color: #4CAF50;
  text-decoration: none;
}

#home a:hover {
  text-decoration: underline;
}

/* FORMULARZ */
form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

form label {
  font-weight: bold;
  color: #555;
}

form input, form select {
  padding: 8px;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1em;
  transition: border-color 0.3s;
}

form input:focus, form select:focus {
  border-color: #4CAF50;
  outline: none;
}

form button {
  padding: 10px 20px;
  background: #4CAF50;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
}

form button:hover {
  background: #45a049;
}

/* TABELA */
.table-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.table-header button {
  padding: 10px 20px;
  background: #4CAF50;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s;
}

.table-header button:hover {
  background: #45a049;
}

#ordersTable {
  width: 100%;
  border-collapse: collapse;
}

#ordersTable th, #ordersTable td {
  border: 1px solid #ccc;
  padding: 12px;
  text-align: left;
}

#ordersTable th {
  background: #eee;
  font-weight: bold;
}

/* STOPKA */
footer {
  text-align: center;
  background: #f9f9f9;
}

/* RESPONSYWNOŚĆ */
@media (max-width: 768px) {
  header h1 {
    font-size: 2em;
  }

  nav {
    flex-direction: column;
    align-items: center;
  }

  nav a {
    margin: 5px 0;
  }

  main, .tab-content {
    padding: 15px;
  }

  #ordersTable th, #ordersTable td {
    padding: 8px;
  }
}

@media (max-width: 480px) {
  #ordersTable th, #ordersTable td {
    padding: 6px;
    font-size: 0.9em;
  }

  .table-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .table-header button {
    margin-top: 10px;
  }
}