html, body {
  background: #212323;
}

body {
  margin: 0;
  padding: 0;
  color: #deddd8;
  background: linear-gradient(135deg, #232526 0%, #1c1c1c 100%);
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  min-height: 100vh;
}

h1 {
  font-size: 3rem;
  margin:0;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
}

main {
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 960px;
}

header {
  margin: 0 auto;
  padding-top: 2rem;
  padding-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  width: 100%;
  max-width: 960px;
}

footer {
  width: 100%;
  display: flex;
  text-align: center;
  color: #888;
}

.logo-apple {
  width: 48px;
  height: 48px;
  border-radius: 20%;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12), 0 1.5px 4px rgba(0,0,0,0.09);
  margin-right: 0.4rem;
  margin-top: 0;
  margin-bottom: 0;
  object-fit: cover;
  background: #222;
  vertical-align: middle;
  display: inline-block;
}

.app-title {
  font-size: 3rem;
  font-weight: 900;
  color: #deddd8;
  line-height: 1;
  text-shadow: 0 2px 24px #000a;
}

.cta-btn {
  display: inline-block;
  text-wrap: nowrap;
  background: linear-gradient(90deg, #ffb347 0%, #ffcc33 100%);
  color: #222;
  font-size: 1.35rem;
  font-weight: 700;
  border: none;
  border-radius: 2rem;
  padding: 1rem 2.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 16px rgba(0,0,0,0.12);
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}

.cta-btn:hover {
  transform: scale(1.04);
}

.columns {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 1.2rem;

  @media (max-width: 768px) {
    flex-direction: column;
    gap: 0.5rem;
  }
}

.left_col {
  flex-grow: 1;
}

.right_col {
  display: flex;
  justify-content: end;
}

.app-about {
  margin: 0 2.5rem;
}

.app-screenshot {
  max-width: 290px;
  height: auto;
  display: block;
  margin-right: 2.5rem;

  @media (max-width: 768px) {
    margin-right: 0;
  }
}

.app-copyright {
  margin: 0 2.5rem;
}