:root {
  --primary: #22c55e;
  --primary-hover: #16a34a;
  --primary-soft: #14532d;

  --bg-main: #0a120d;
  --bg-card: #101914;
  --bg-card-2: #16211b;
  --bg-element: #0f1712;
  --bg-element-2: #1a261e;

  --text-main: #ffffff;
  --text-soft: #b7cbbd;
  --text-muted: #8aa091;
  --text-footer: #738879;

  --btn-secondary: #18231c;
  --btn-secondary-hover: #223127;

  --shadow-soft: 0 10px 28px rgba(0, 0, 0, 0.25);
  --shadow-strong: 0 12px 36px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-main);
  color: var(--text-main);
  padding: 20px;
}

.card {
  width: 100%;
  max-width: 420px;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-card-2));
  border-radius: 18px;
  padding: 28px;
  box-shadow: var(--shadow-strong);
}

h1 {
  margin: 0 0 10px;
  font-size: 28px;
  color: var(--text-main);
}

p {
  margin: 0 0 20px;
  color: var(--text-soft);
}

.field {
  margin-bottom: 14px;
}

label {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  color: var(--text-main);
}

input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--bg-element-2);
  border-radius: 12px;
  background: var(--bg-element);
  color: var(--text-main);
  outline: none;
  transition:
    border-color 0.2s,
    box-shadow 0.2s,
    background 0.2s;
}

input::placeholder {
  color: var(--text-muted);
}

input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

button {
  width: 100%;
  padding: 12px 14px;
  border: none;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  font-size: 15px;
  font-weight: bold;
  margin-top: 8px;
  transition:
    background 0.2s,
    transform 0.2s;
}

button:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.message {
  margin-top: 14px;
  padding: 12px;
  border-radius: 12px;
  background: var(--bg-element-2);
  display: none;
  color: var(--text-soft);
}

.message.error {
  display: block;
  background: rgba(220, 38, 38, 0.14);
  color: #fecaca;
  border: 1px solid rgba(220, 38, 38, 0.28);
}

.message.success {
  display: block;
  background: rgba(34, 197, 94, 0.14);
  color: #bbf7d0;
  border: 1px solid rgba(34, 197, 94, 0.28);
}