:root {
  --bg-dark: #1b1f26;
  --accent-blue: #00d9ff;
  --text-light: #d0faff;
  --bg-light: #f7f9fa;
  --text-dark: #1b1f26;
}

[data-theme="dark"] {
  --bg: var(--bg-dark);
  --text: var(--text-light);
  --accent: var(--accent-blue);
  --card: #222831;
}

[data-theme="light"] {
  --bg: var(--bg-light);
  --text: var(--text-dark);
  --accent: #0077cc;
  --card: #ffffff;
}

body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  font-weight: 400;
  background-color: var(--bg);
  color: var(--text);
  transition: background-color 0.3s, color 0.3s;
}

/* Navbar */
.navbar {
  background-color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.navbar a.logo-link img {
  height: 60px;
  transition: transform 0.3s;
}

.navbar a.logo-link:hover img {
  transform: scale(1.05);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--accent);
  text-decoration: none;
  font-size: 1rem;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: white;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--accent);
  cursor: pointer;
}

.theme-toggle {
  font-size: 1.3rem;
  cursor: pointer;
  color: var(--accent);
  background: transparent;
  border: none;
  padding: 0.5rem;
  border-radius: 50%;
  transition: background-color 0.3s;
  margin-left: 1rem;
}

.theme-toggle:hover {
  background-color: rgba(0, 217, 255, 0.1);
}

/* Hero Section */
.hero {
  padding-top: 140px;
  text-align: center;
  padding-bottom: 100px;
}

.hero h1 {
  color: var(--accent);
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto;
  padding: 0 1rem;
}

.hero button {
  margin-top: 2rem;
  padding: 0.75rem 2rem;
  font-size: 1rem;
  background-color: var(--accent);
  color: #000;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.hero button:hover {
  background-color: #00aacc;
}

/*
.section {
  padding: 60px 20px;
  text-align: center;
}
*/
.section {
  padding: 100px 20px 60px; /* 100px místo 60px nahoře */
  text-align: center;
}


.features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem;
}

.feature {
  background-color: var(--card);
  padding: 2rem;
  border-radius: 10px;
  width: 260px;
  box-shadow: 0 0 15px rgba(0, 217, 255, 0.1);
  transition: transform 0.3s;
}

.feature:hover {
  transform: translateY(-5px);
}

.feature i {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

footer {
  background-color: rgba(0, 0, 0, 0.2);
  text-align: center;
  padding: 20px;
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    background-color: var(--bg);
    position: absolute;
    top: 70px;
    right: 0;
    width: 200px;
    padding: 1rem;
    box-shadow: -2px 2px 10px rgba(0,0,0,0.5);
  }

  .nav-links a {
    margin: 0.5rem 0;
  }

  .nav-links.active {
    display: flex;
  }

  .menu-toggle {
    display: block;
  }

  .features {
    flex-direction: column;
    align-items: center;
  }

  .hero h1 {
    font-size: 2rem;
  }
}


html, body {
  height: 100%;
  margin: 0;
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

#footer {
  margin-top: auto;
}