/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Roboto, sans-serif;
}

/* Light & Dark Mode Variables */
:root {
  --bg: #f5f5f5;
  --text: #121212;
  --button-bg: linear-gradient(135deg, #ff6600, #ffcc00);
  --button-text: #121212;
  --footer: #ccc;
}

body.dark {
  --bg: #0d1117;
  --text: #e6edf3;
  --button-bg: linear-gradient(135deg, #ffcc00, #ff6600);
  --button-text: #121212;
  --footer: #8b949e;
}

body {
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
}

/* Theme Toggle Button */
.theme-toggle {
  position: absolute;
  top: 20px;
  right: 20px;
  background: var(--button-bg);
  border: none;
  border-radius: 50%;
  padding: 10px;
  cursor: pointer;
  font-size: 18px;
  transition: transform 0.3s;
}
.theme-toggle:hover {
  transform: rotate(20deg);
}

/* Header */
.header {
  text-align: center;
  padding: 40px 20px 20px;
}

.logo {
  width: 90px;
  border-radius: 50%;
  border: 2px solid #ff6600;
  margin-bottom: 15px;
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 5px;
}

.tagline {
  font-size: 1rem;
  color: #ff6600;
  font-weight: 500;
}

/* Links */
.container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 30px;
}

.links {
  width: 100%;
  max-width: 420px;
  text-align: center;
}

.links a {
  display: block;
  margin: 15px 0;
  padding: 14px;
  background: var(--button-bg);
  color: var(--button-text);
  text-decoration: none;
  border-radius: 12px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.links a:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}

/* Footer */
.footer {
  text-align: center;
  padding: 20px;
  font-size: 0.9rem;
  color: var(--footer);
  border-top: 1px solid rgba(255,255,255,0.1);
}