:root {
  --primary-color: #000;
  --bg-color: #f2f2f2;
  --error-color: #e74c3c;
  --text-gray: #777;
  --radius: 10px;
  --shadow: 0 4px 10px rgba(0,0,0,.15);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', Arial, sans-serif;
}

body {
  background: var(--bg-color);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px; /* Garante respiro no mobile */
}

.container {
  width: 100%;
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* CARD */
.card {
  background: #fff;
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.card-header {
  background: #7a7a7a;
  color: #fff;
  padding: 20px;
  text-align: left;
}

.card-header h1 {
  font-size: 20px;
  font-weight: 600;
  text-transform: uppercase;
}

.card-header span {
  font-size: 14px;
  opacity: 0.9;
}

form {
  padding: 25px;
}

.input-group {
  margin-bottom: 12px;
}

form input {
  width: 100%;
  padding: 12px 18px;
  border-radius: 25px;
  border: 1px solid #ddd;
  font-size: 14px;
  outline: none;
  transition: border-color 0.3s;
}

form input:focus {
  border-color: var(--primary-color);
}

.error-message {
  color: var(--error-color);
  font-size: 11px;
  margin: 4px 0 0 12px;
  display: none;
}

.error-message.active {
  display: block;
}

.input-error {
  border-color: var(--error-color) !important;
}

form button {
  width: 100%;
  padding: 14px;
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: 25px; /* Arredondado para seguir o padrão dos inputs */
  font-weight: 600;
  cursor: pointer;
  margin-top: 10px;
  transition: opacity 0.3s;
}

form button:hover {
  opacity: 0.8;
}

.copyright {
  text-align: center;
  font-size: 11px;
  color: var(--text-gray);
  line-height: 1.4;
}

/* MODAL */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
}

.modal {
  background: #fff;
  width: 100%;
  max-width: 340px;
  padding: 25px;
  position: relative;
  border-radius: 8px;
  text-align: center;
}

.modal h3 {
  margin-bottom: 15px;
  font-size: 18px;
}

.modal p {
  font-size: 14px;
  color: #555;
  margin-bottom: 15px;
}

.modal .dados {
  margin: 20px 0;
  padding: 15px;
  background: #f9f9f9;
  border-radius: 5px;
  text-align: left;
}

.modal .dados p {
  margin-bottom: 5px;
  font-size: 13px;
}

.btn-whatsapp {
  width: 100%;
  padding: 12px;
  background: #25d366; /* Cor oficial WhatsApp */
  color: #fff;
  border: none;
  border-radius: 5px;
  font-weight: 600;
  cursor: pointer;
}

.close {
  position: absolute;
  top: 10px;
  right: 15px;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #999;
}