:root {
  /* Main theme */
  --main-color: #005596;
  --main-font-color: #ffffff;

  /* Secondary theme */
  --secondary-color: #f4b400;   /* golden yellow */
  --secondary-font-color: #000000;

  /* Background */
  --background-color: #f5f7fa;  /* light grayish */
  --background-font-color: #333333;

  /* Primary Button */
  --button-main-color: #005596;             /* deep blue */
  --button-main-hover-color: #004080;      /* darker blue */
  --button-main-font-color: #ffffff;       /* white text */
  --button-main-hover-font-color: #e0e0e0; /* light gray text */

  /* Secondary Button */
  --button-secondary-color: #f4b400;          /* golden yellow */
  --button-secondary-hover-color: #d99a00;   /* darker golden */
  --button-secondary-font-color: #000000;    /* black text */
  --button-secondary-hover-font-color: #333; /* dark gray text */
}

body {
  background-color: var(--background-color);
  color: var(--background-font-color);
  font-family: Arial, sans-serif;
}

button.primary {
  background-color: var(--button-main-color);
  color: var(--button-main-font-color);
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
}

button.primary:hover:not(:disabled) {
  background-color: var(--button-main-hover-color);
  color: var(--button-main-hover-font-color);
}

button.primary:active:not(:disabled) {
  transform: scale(0.97); /* subtle press effect */
}

button.primary:disabled {
  background-color: #cccccc;
  color: #666666;
  cursor: not-allowed;
  opacity: 0.6;
}


/* Secondary Button */
button.secondary {
  background-color: var(--button-secondary-color);
  color: var(--button-secondary-font-color);
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  transition: all 0.3s ease;
}

button.secondary:hover:not(:disabled) {
  background-color: var(--button-secondary-hover-color);
  color: var(--button-secondary-hover-font-color);
}

button.secondary:active:not(:disabled) {
  transform: scale(0.97);
}

button.secondary:disabled {
  background-color: #e0e0e0;
  color: #888888;
  cursor: not-allowed;
  opacity: 0.6;
}

/* html, body {
  height: 100%;
  margin: 0;
  display: flex;
  flex-direction: column;
} */

html, body {
  height: 100%;
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: var(--main-color);
  color: var(--main-font-color);
  padding: 2px 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header section {
  display: flex;
  align-items: center;
}

header img {
  margin-right: 10px;
}

header .title {
  font-size: 1.2em;
  font-weight: bold;
}

header nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
}

header nav ul li {
  display: flex;
  align-items: center;
}

header nav ul li a {
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 5px;
  font-weight: 500;
  transition: all 0.3s ease;
  color: var(--main-font-color);
  background-color: transparent;
}

header nav ul li a:hover {
  background-color: var(--button-secondary-hover-color);
  color: var(--button-secondary-hover-font-color);
}

header nav ul li a.active {
  background-color: var(--button-main-color);
  color: var(--button-main-font-color);
}



main {
  flex: 1;
  padding: 5px;
  padding-bottom: 10vh;
}

/* footer {
  background-color: var(--main-color);
  color: var(--main-font-color);
  text-align: center;
  padding: 2px 0;
} */

footer {
  margin: 60px 0 0 0;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background-color: var(--main-color);
  color: var(--main-font-color);
  text-align: center;
  z-index: 1000;
}