:root {
  --color-bg-dark: #0b0f11;     /* deep blackish gray from the bottom of the image */
  --color-bg-mid: #122126;      /* shadowed building tone */
  --color-bg-light: #9ae6d3;    /* glowing teal light tone from the sky */

  --color-primary: #2bdac4;     /* vibrant teal glow */
  --color-accent: #1fb59c;      /* midtone teal highlight */
  --color-muted: #5a6e72;       /* desaturated teal-gray from some of the buildings */

  --text-main: #e8fff9;         /* light mint-white for text */
  --text-light: #ffffff;        /* pure white for highest contrast */
}

body {
  background: var(--color-bg-dark);
  color: var(--text-main);
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, 'Liberation Sans', sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

main {
  background-color: var(--color-bg-mid);
  flex: 1;
}

section {
  padding: 2em;
  background: var(--color-bg-dark);
}

.hero {
  flex: 1;
  color: var(--text-light); /* from your updated palette */
  padding: 4em 2em;

  background-size: cover; background-position: center; min-height: 300px; display: flex; align-items: center; justify-content: center;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-accent);
}

form {
  display: flex;
  flex-direction: column;
  gap: 1em;
  max-width: 600px;
  margin: 0 auto;
  padding: 2em;
  background-color: var(--color-bg-mid);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

input {
  padding: 1em;
  background-color: white;
  border: none;
}

input[type=submit] {
  background-color: var(--color-primary);
  color: var(--text-light);
  border: none;
  border-radius: 6px;
  padding: 0.75em 2em;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

input[type=submit]:hover {
  background-color: var(--color-accent);
  color: var(--color-bg-light);
}

footer {
  padding: 2em;
  color: var(--text-light);
  background-color: var(--color-bg-mid);
  flex: 0;
}