:root {
  --color-bg: #f9fbfd;
  --color-text: #333333;
  --color-primary: #007BFF;
  --color-primary-dark: #0056b3;
  --color-accent-light: #e6f0ff;
  --color-header-bg: var(--color-primary);
  --color-header-text: #ffffff;
  --color-footer-bg: var(--color-primary);
  --color-footer-text: #ffffff;
  --color-card-bg: #ffffff;
  --color-input-bg: #ffffff;
  --color-input-border: #cccccc;
}

[data-theme="dark"] {
  --color-bg: #121212;
  --color-text: #e0e0e0;
  --color-primary: #2196F3;
  --color-primary-dark: #1976D2;
  --color-accent-light: #1f1f1f;
  --color-header-bg: #1f1f1f;
  --color-header-text: #ffffff;
  --color-footer-bg: #1f1f1f;
  --color-footer-text: #ffffff;
  --color-card-bg: #1f1f1f;
  --color-input-bg: #2c2c2c;
  --color-input-border: #555555;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Segoe UI", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

header {
  background: var(--color-header-bg);
  color: var(--color-header-text);
  padding: 20px 10%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo img {
  height: 50px;
}

nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

nav a {
  color: var(--color-header-text);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

nav a:hover {
  color: #e6f0ff;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  max-width: 1000px;
  margin: 0 auto;
}

.nav-logo {
  font-size: 1.5em;
  font-weight: bold;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2em;
  color: #fff;
  cursor: pointer;
}

.nav-links {
  list-style: none;
  display: flex;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin-right: 15px;
}

.nav-links a {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
}

.nav-links a:hover {
  text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    width: 100%;
    flex-direction: column;
    display: none;
    background-color: var(--color-primary-light);
  }

  .nav-links li {
    margin: 10px 0;
    text-align: center;
  }

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

  .dark-mode .nav-links {
    background-color: var(--color-primary-dark);
  }
}

#lang-switcher {
  padding: 5px;
  border-radius: 4px;
  border: none;
}

main {
  padding: 40px 10%;
}

.hero {
  background: var(--color-accent-light);
  color: var(--color-text);
  padding: 50px;
  border-radius: 8px;
  text-align: center;
}

.hero h2 {
  color: var(--color-primary-dark);
  font-size: 2.5rem;
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}

.hero .small {
  font-size: 1rem;
}

.hero .button {
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
  padding: 12px 25px;
  border-radius: 4px;
  font-weight: bold;
  transition: background 0.3s;
}

.hero .button:hover {
  background: var(--color-primary-dark);
}

.darkmode-button {
  padding: 3px 6px 6px 2px;
  border-radius: 6px;
}

.screenshots {
  margin-top: 50px;
}

.screenshots h2 {
  color: #0056b3;
  margin-bottom: 20px;
}

.screenshot-gallery {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

.screenshot-gallery img,span {
  width: 350px;
  height: auto;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.2);
  transition: transform 0.3s;
}

.screenshot-gallery img:hover {
  transform: scale(1.4,1.4);
}

section .left {
  margin-right: 2em;
  width: 50%;
  float:left;
}
section .right {
  margin-left: 2em;
  width: 50%;
  float: right;
}
/* Responsive */
@media (max-width: 792px) {
  section .left {
    margin-right: 0em;
    margin-left: 1em;
    width: 90%;
    float: none;
    margin-bottom: 20px;
  }
  section .right {
    margin-left: 1em;
    width: 90%;
    float: none;
    margin-bottom: 20px;
  }
}

section h1, section h2 {
  color: #0056b3;
  margin-bottom: 20px;
}

footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  text-align: center;
  padding: 20px 10%;
  margin-top: 50px;
}

footer a {
  color: var(--color-header-text);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

footer a:hover {
  color: #e6f0ff;
}

ul {
  list-style: disc inside;
  margin-top: 20px;
}

form {
  max-width: 500px;
  margin: 0 auto;
  background: var(--color-card-bg);
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

form label {
  font-weight: bold;
  margin-top: 10px;
  display: block;
  color: #0056b3;
}

form input,
form textarea,
form select {
  width: 100%;
  padding: 10px;
  background: var(--color-input-bg);
  border: 1px solid var(--color-input-border);
  color: var(--color-text);
  border-radius: 4px;
  margin-top: 5px;
}

form button {
  background: var(--color-primary);
  color: #fff;
  border: none;
  padding: 12px;
  border-radius: 4px;
  cursor: pointer;
  margin-top: 15px;
  font-weight: bold;
  transition: background 0.3s;
}

form button:hover {
  background: var(--color-primary-dark);
}