:root {
  color-scheme: dark;
  font-family: Inter, system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at top, #173526, #0b0f14 55%);
  color: #f4f7f5;
}

main {
  width: min(92vw, 390px);
  padding: 2rem;
  border: 1px solid #2a4035;
  border-radius: 20px;
  background: rgba(14, 22, 18, .94);
  box-shadow: 0 24px 70px rgba(0, 0, 0, .42);
}

h1 { margin: 0 0 .4rem; font-size: 1.65rem; }
h1 b { color: #2fe08a; }
p { margin: 0 0 1.4rem; color: #aebdb5; }
label { display: grid; gap: .45rem; margin: 1rem 0; font-weight: 650; }

input {
  width: 100%;
  padding: .85rem 1rem;
  border: 1px solid #3a4d43;
  border-radius: 10px;
  background: #0b110e;
  color: #fff;
  font: inherit;
}

input:focus { outline: 2px solid #2fe08a; outline-offset: 1px; }

.remember-row {
  display: flex;
  align-items: center;
  gap: .7rem;
  margin: 1rem 0 .65rem;
  color: #dbe7e0;
  cursor: pointer;
}

.remember-row input {
  width: 1.1rem;
  height: 1.1rem;
  margin: 0;
  padding: 0;
  accent-color: #2fe08a;
}

button {
  width: 100%;
  margin-top: .55rem;
  padding: .9rem;
  border: 0;
  border-radius: 10px;
  background: #2fe08a;
  color: #06210f;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.error {
  padding: .75rem;
  border-radius: 9px;
  background: #491f24;
  color: #ffd9dc;
}