:root {
    --primary-color: #2E5BFF;
    --accent-color: #09274A;
    --text-color: #333333;

    --bg-main: #ffffff;
    --bg-secondary: #fafafa;
}

/* RESET */
body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    background: #ffffff;
}

/* HEADER */
header {
  padding: 15px 20px;
  color: black;
  z-index: 1000;
}

.header-size {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
  margin: auto;
}

.logo img {
  height: 40px;
  cursor: pointer;
}

/* LEFT GROUP (logo + Converters) */
.left-group {
  display: flex;
  align-items: center;
  gap: 30px;
}

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

nav a {
  color: black;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s, transform 0.2s, letter-spacing 0.2s;
}

nav a:hover {
  color: var(--primary-color);
  transform: translateY(-2px);
  letter-spacing: 0.5px;
}

/* DROPDOWN */
.dropdown {
  position: relative;
}

.dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.dropdown-toggle .chevron {
  width: 16px;
  height: 16px;
  transition: transform 0.25s ease;
}

.dropdown.open .chevron,
.dropdown:hover .chevron {
  transform: rotate(180deg);
}

.dropdown-menu {
  display: none;
  position: absolute;
  z-index: 2000;
  background: white;
  top: 100%;
  left: 0;
  padding: 15px;
  min-width: 420px;
  box-shadow: 0px 4px 10px rgba(0,0,0,0.1);
  border-radius: 6px;

  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.dropdown:hover .dropdown-menu {
  display: grid;
}

/* Submenu columns */
.dropdown-column {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.submenu-title {
  font-size: 12px;
  font-weight: 600;
  color: #777;
  margin-bottom: 4px;
  text-transform: uppercase;
}

/* MOBILE */
.menu-toggle {
  display: none;
  font-size: 24px;
  cursor: pointer;
}

@media (max-width: 768px) {
  nav ul {
    display: none;
    flex-direction: column;
    background: white;
    position: absolute;
    top: 60px;
    right: 0;
    width: 240px;
    padding: 10px;
    z-index: 2000;
  }

  nav ul.show {
    display: flex;
  }

  .dropdown-menu {
    display: none;
    position: static;
    padding: 10px 0;
    min-width: auto;
    box-shadow: none;
    border-radius: 0;
    grid-template-columns: 1fr;
  }

  .dropdown.open .dropdown-menu {
    display: grid;
  }

  .menu-toggle {
    display: block;
  }

  .nav-left ul {
    position: absolute;
    top: 150px;   /* po header */
    right: 0;
  }

  .nav-right ul {
    position: absolute;
    top: 62px;  /* dar žemiau nei .nav-left */
    right: 0;
  }
}

/* FOOTER */
footer {
    background: var(--accent-color);
    color: white;
    text-align: center;
    padding: 14px;
    margin-top: 40px;
}