:root {
  /* Royal dark green — "verde seco" (matte/dry green), not bright emerald. */
  --color-bg: #0b1712;
  --color-surface: #132821;
  --color-surface-2: #1c3a2f;
  --color-text: #eef3ee;
  --color-muted: #8fa79a;
  --color-primary: #3f7a52;
  --color-primary-hover: #4d9060;
  --color-error: #e2685c;
  --color-success: #7fbf8f;
  --color-border: #24392e;
  --color-gold: #c9a961;
  --radius: 10px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(circle at 15% 10%, rgba(63, 122, 82, 0.18), transparent 40%),
    radial-gradient(circle at 85% 90%, rgba(201, 169, 97, 0.10), transparent 45%),
    var(--color-bg);
  color: var(--color-text);
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

h1 { font-size: 1.25rem; margin: 0 0 1.25rem; color: var(--color-text); }

label { display: block; font-size: 0.875rem; margin: 0.75rem 0 0.25rem; color: var(--color-muted); }

input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  background: var(--color-bg);
  color: var(--color-text);
}

input:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }

button {
  width: 100%;
  margin-top: 1.25rem;
  padding: 0.65rem;
  border: none;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: white;
  font-size: 0.95rem;
  cursor: pointer;
}

button:hover { background: var(--color-primary-hover); }
button:disabled { opacity: 0.6; cursor: not-allowed; }

.form-error {
  background: rgba(226, 104, 92, 0.12);
  color: #ff9a8f;
  border: 1px solid rgba(226, 104, 92, 0.35);
  border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.form-success {
  background: rgba(127, 191, 143, 0.12);
  color: var(--color-success);
  border: 1px solid rgba(127, 191, 143, 0.35);
  border-radius: var(--radius);
  padding: 0.6rem 0.75rem;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.links { margin-top: 1rem; font-size: 0.85rem; text-align: center; color: var(--color-muted); }
.links a { color: var(--color-gold); text-decoration: none; }
.links a:hover { text-decoration: underline; }