:root {
  --brand: #1f8f46;
  --brand-dark: #176f35;
  --text: #132033;
  --muted: #5f6b7a;
  --border: #dfe5eb;
  --bg: #f6f8fb;
  --card: #ffffff;
  --focus: rgba(31, 143, 70, .18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(31, 143, 70, .10), transparent 30%),
    var(--bg);
  color: var(--text);
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(100%, 880px);
  background: var(--card);
  border: 1px solid rgba(31, 143, 70, .25);
  border-radius: 18px;
  box-shadow: 0 18px 60px rgba(19, 32, 51, .10);
  padding: 28px;
}

.lang-bar {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.lang-btn {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 700;
  cursor: pointer;
}

.lang-btn.active {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}

.header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 26px;
}

.whatsapp-icon {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(31, 143, 70, .12);
  color: var(--brand);
  flex: 0 0 auto;
}

h1 {
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.1;
  margin: 0 0 8px;
}

p {
  margin: 0;
}

.header p,
.note {
  color: var(--muted);
}

form {
  display: grid;
  gap: 16px;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid.three {
  grid-template-columns: repeat(3, 1fr);
}

.grid.two {
  grid-template-columns: repeat(2, 1fr);
}

label {
  display: grid;
  gap: 7px;
  font-size: 14px;
  font-weight: 700;
  color: #243247;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 15px;
  font: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
}

textarea {
  resize: vertical;
  min-height: 124px;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 4px var(--focus);
}

.submit-btn {
  width: 100%;
  border: none;
  border-radius: 10px;
  padding: 17px 20px;
  background: linear-gradient(180deg, var(--brand), var(--brand-dark));
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 10px 24px rgba(31, 143, 70, .24);
}

.submit-btn:hover {
  filter: brightness(1.03);
}

.btn-icon {
  font-size: 20px;
}

.note {
  text-align: center;
  font-size: 14px;
}

.error {
  color: #9f1239;
  background: #fff1f2;
  border: 1px solid #fecdd3;
  border-radius: 10px;
  padding: 12px 14px;
}

@media (max-width: 760px) {
  .page {
    padding: 14px;
  }

  .card {
    padding: 20px;
  }

  .grid.three,
  .grid.two {
    grid-template-columns: 1fr;
  }

  .header {
    align-items: flex-start;
  }
}