/* ---------- VARIABLES ---------- */
:root {
  --teal-50: #F0FDFA;
  --teal-600: #0D9488;
  --amber-500: #F59E0B;
  --amber-600: #D97706;
  --gray-800: #1F2937;
  --gray-700: #374151;
  --gray-500: #6B7280;
  --error: #e11d48;
}

/* ---------- RESET ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: #f7f7f7;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ---------- HEADER ---------- */

.logo img {
  max-width: 200px;
  height: auto;
}

.btn-acceso {
  padding: 12px 32px;
  background: #ffffff;
  color: #034520;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.btn-acceso:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
  background: #f0f0f0;
}

/* ---------- MAIN ---------- */
main {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 3rem 1rem;
}

/* ---------- FORM ---------- */
.form-center {
  width: 100%;
  max-width: 420px;
}

.form-residencia {
  background: var(--teal-50);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 4px 14px rgba(13, 148, 136, 0.12);
}

.form-residencia h2 {
  color: var(--gray-800);
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
}

.form-residencia label {
  display: block;
  margin: 1rem 0 0.25rem;
  color: var(--gray-700);
  font-weight: 600;
}

.form-residencia input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 1rem;
}

.form-residencia input:focus {
  outline: none;
  border-color: var(--teal-600);
  box-shadow: 0 0 0 2px rgba(13, 148, 136, 0.2);
}

.error {
  color: var(--error);
  font-size: 0.8rem;
  margin-top: 0.25rem;
  display: block;
  min-height: 1.2rem;
}

.form-residencia button {
  width: 100%;
  justify-content: center;
  margin-top: 1.5rem;
}

.form-residencia button:disabled {
  background: var(--gray-400);
  cursor: not-allowed;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 480px) {
  .form-residencia {
    padding: 1.5rem;
  }
}

.check-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--gray-700);
}

.check-group input {
  width: auto;
  margin: 0;
}