:root {
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-900: #111827;

  --indigo-50: #eef2ff;
  --indigo-500: #1e80ff;
  --indigo-600: #0a3478;

  --font-family: "Poppins", ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-family);
}

body {
  background: var(--gray-50);
  color: var(--gray-900);
}

/* HERO */
.hero {
  min-height: 100vh;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__content {
  max-width: 520px;
  width: 100%;
}

.hero__title {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--indigo-600);
}

.hero__subtitle {
  margin-top: 0.75rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* CARD */
.hero__card {
  margin-top: 2rem;
  background: var(--white);
  padding: 1.5rem;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.hero__card-title {
  margin-bottom: 1rem;
  font-size: 1.2rem;
  font-weight: 600;
}

/* FORM */
.form__group {
  margin-bottom: 1rem;
}

.form__group label {
  font-size: 0.85rem;
  color: var(--gray-600);
}

.form__group input,
.form__group select,
.form__group textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--gray-300);
  margin-top: 0.35rem;
  outline: none;
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  border-color: var(--indigo-500);
}

.btn {
  width: 100%;
  padding: 0.75rem;
  border: none;
  border-radius: 10px;
  background: var(--indigo-500);
  color: var(--white);
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.5rem;
}

.btn:hover {
  background: var(--indigo-600);
}

.form__message {
  margin-top: 0.75rem;
  font-size: 0.85rem;
}

/* WHATSAPP FLOAT */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: #25d366;
  color: #fff;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  text-decoration: none;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}