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

body {
  min-height: 100vh;
  background: #121212;
  color: #f2f2f2;
  font-family: 'Inter', sans-serif;
  display: flex;
  flex-direction: column;
}

.container {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
  gap: 4vh;
}

h1 {
  font-size: calc(2.5rem + 1vw);
  font-weight: 800;
  line-height: 1.2;
}

.highlight {
  color: #fff;
}

.gradient-text {
  background-image: linear-gradient(to right, #ff6a4d, #e83e8c);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}

p {
  max-width: 650px;
  margin: 0 auto;
  font-size: calc(1rem + 0.2vw);
  line-height: 1.6;
  color: #e0e0e0;
  letter-spacing: 0.01em;
}

.buttons {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  padding: 0.9rem 2rem;
  border: 2px solid #f2f2f2;
  border-radius: 2rem;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  min-width: 205px;
  color: #fff;
  background: none;
  transition: all 0.2s;
}

.btn.primary {
  background: #fff;
  color: #121212;
  border: 2px solid #fff;
}

.btn.primary:hover,
.btn:not(.primary):hover {
  background-image: linear-gradient(to right, #ff6a4d, #e83e8c);
  color: #fff;
  border: 2px solid transparent;
}

.socials {
  display: flex;
  gap: 1.5rem;
  font-size: 2rem;
  justify-content: center;
}

.socials a {
  color: #f2f2f2;
  transition: 0.3s;
  padding: 10px;
}

.socials a:hover {
  color: transparent;
  background-image: linear-gradient(to right, #ff6a4d 60%, #e83e8c 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

footer {
  width: 100%;
  min-height: 7.6vh;
  font-size: 0.95rem;
  color: #999;
  border-top: 1px solid #333;
  background: none;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  padding: 1.25rem 0 1.1rem 0;
  margin-top: auto;
}

#theme-toggle {
  position: fixed;
  bottom: 10px;
  right: 20px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #1e1e1e;
  color: #f2f2f2;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0,0,0,0.2);
  border: none;
  z-index: 100;
}

body.light {
  background: #fff;
  color: #121212;
}
body.light .highlight { color: #121212; }
body.light .gradient-text {
  background-image: linear-gradient(to right, #ff6a4d, #e83e8c);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
}
body.light p { color: #333; }
body.light .btn { border-color: #121212; color: #121212; }
body.light .btn.primary { background: #121212; color: #fff; border: 2px solid #121212; }
body.light .btn.primary:hover,
body.light .btn:not(.primary):hover {
  background-image: linear-gradient(to right, #ff6a4d, #e83e8c);
  color: #fff;
  border: 2px solid transparent;
}
body.light .socials a { color: #121212; }
body.light .socials a:hover {
  color: transparent;
  background-image: linear-gradient(to right, #ff6a4d 60%, #e83e8c 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
body.light footer { color: #666; border-top: 1px solid #ccc; }
body.light #theme-toggle { background: #f4f4f4; color: #121212; }

@media (max-width: 768px) {
  .container { padding: 0 1rem; }
  h1 { font-size: 2.2rem; }
  p { font-size: 1rem; line-height: 1.7; }
  .buttons { gap: 1rem; }
  .btn { padding: 0.8rem 1.6rem; }
  footer { font-size: 0.85rem; min-height: 48px; padding: 1rem 0 0.9rem 0; }
}
@media (max-width: 480px) {
  body {
    padding: 0;
    overflow-x: hidden;
  }
  .container { padding: 2rem 0.5rem; }
  #theme-toggle {
    top: 15px;
    right: 10px;
    width: 35px;
    height: 35px;
    font-size: 1rem;
  }
  h1 { font-size: 1.9rem; margin-bottom: 1rem; }
  p { font-size: 0.95rem; margin: 1rem auto 2rem; }
  .btn { padding: 0.7rem 1.4rem; font-size: 0.95rem; }
  .socials { margin-top: 1.5rem; font-size: 1.6rem; }
  footer {
    font-size: 0.8rem;
    min-height: 32px;
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}