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

:root {
  --primary-color: #3f51b5;
  --secondary-color: #ff4081;
  --text-color: #333;
  --light-bg: #f4f7f6;
  --card-bg-light: #ffffff;
  --icon-size: 2.5em;
  --dark-bg: #1e1e1e;
  --dark-text: #f0f0f0;
  --card-bg-dark: #2c2c2c;
}

[data-theme="dark"] {
  background-color: var(--dark-bg);
  color: var(--dark-text);
}

[data-theme="dark"] body {
  background-color: var(--dark-bg);
  color: var(--dark-text);
}

[data-theme="dark"] h1,
[data-theme="dark"] h2 {
  color: var(--dark-text);
}

[data-theme="dark"] .social-icons a {
  color: var(--dark-text);
}

[data-theme="dark"] .container {
  background-color: var(--card-bg-dark);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
}

[data-theme="dark"] .container:hover {
  box-shadow: 0 15px 40px rgba(255, 255, 255, 0.1);
}


body {
  font-family: "Poppins", sans-serif;
  background-color: var(--light-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
  padding: 20px;
  color: var(--text-color);
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  background-color: var(--card-bg-light);
  padding: 40px 60px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  max-width: 90%;
  width: 700px;
  margin-bottom: 20px;
  transition: box-shadow 0.3s ease, background-color 0.3s ease;
}

.container:hover {
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

h1 {
  font-weight: 600;
  font-size: 3em;
  color: var(--text-color);
  margin-bottom: 30px;
  letter-spacing: -0.5px;
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.05);
  transition: color 0.3s ease;
}

.social-icons {
  display: flex;
  gap: 30px;
  justify-content: center;
  margin-top: 30px;
}

.social-icons a {
  font-size: var(--icon-size);
  color: var(--text-color);
  transition: transform 0.3s ease, color 0.3s ease;
  text-decoration: none;
  padding: 10px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
}

.social-icons a:hover {
  transform: translateY(-5px) scale(1.05);
}

.fa-github:hover {
  color: #181717;
}

.fa-discord:hover {
  color: #5865f2;
}

.fa-link:hover {
  color: var(--secondary-color);
}

[data-theme="dark"] .fa-github:hover {
  color: #ffffff;
}

.theme-switcher {
  position: absolute;
  top: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text-color);
  transition: color 0.3s ease;
}

[data-theme="dark"] .theme-switcher {
  color: var(--dark-text);
}

.theme-checkbox {
  opacity: 0;
  width: 0;
  height: 0;
}

.theme-label {
  width: 60px;
  height: 30px;
  background: linear-gradient(to right, #d1d1d1, #b0b0b0);
  border-radius: 50px;
  cursor: pointer;
  position: relative;
  transition: background 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.12);
  overflow: hidden;
}

.theme-label:hover {
  box-shadow: 0 3px 16px rgba(0, 0, 0, 0.16);
}

.toggle-icon {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  color: #666;
  transition: opacity 0.3s ease;
}

.toggle-icon:not(.checked) {
  left: 35px;
  opacity: 1;
}

.toggle-icon.checked {
  left: 6px;
  opacity: 0;
}

.theme-label::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, #ffffff, #f0f0f0);
  border-radius: 50%;
  transition: transform 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.theme-checkbox:checked + .theme-label {
  background: linear-gradient(to right, var(--primary-color), #4a5cc2);
  box-shadow: 0 2px 12px rgba(63, 81, 181, 0.3);
}

.theme-checkbox:checked + .theme-label::after {
  transform: translateX(30px);
  background: linear-gradient(135deg, #ffffff, #f0f0f0);
}

.theme-checkbox:checked + .theme-label .toggle-icon:not(.checked) {
  opacity: 0;
}

.theme-checkbox:checked + .theme-label .toggle-icon.checked {
  opacity: 1;
}

[data-theme="dark"] .theme-label {
  background: linear-gradient(to right, #444, #333);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

[data-theme="dark"] .toggle-icon {
  color: #ccc;
}

[data-theme="dark"] .theme-label::after {
  background: linear-gradient(135deg, #333, #222);
  box-shadow: 0 2px 6px rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
  .container {
    padding: 30px 20px;
  }

  h1 {
    font-size: 2.2em;
  }

  :root {
    --icon-size: 1.5em;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2.2;
  }

  :root {
    --icon-size: 1.5em;
  }
}