:root {
  --bg: #f6f8f7;
  --card: #ffffff;
  --text: #1f2a24;
  --muted: #5f6e66;
  --border: #d9e3dd;
  --primary: #0099CC;
  --primary-strong: #007AA3;
  --secondary: #FF6666;
  --danger: #b42318;
  --shadow: 0 16px 40px rgba(0, 153, 204, 0.12);
  --radius: 18px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #eef8fc 0%, var(--bg) 100%);
}
.app-shell { max-width: 1200px; margin: 0 auto; padding: 28px 18px 40px; }
.hero-card, .form-card, .summary-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero-card { padding: 28px; margin-bottom: 18px; }
.eyebrow {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero-card h1, .summary-card h2 { margin: 0 0 10px; }
.hero-copy, .hint, .summary-note, .form-message { color: var(--muted); }
.layout-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(320px, 0.9fr);
  gap: 18px;
  align-items: start;
}
.form-card { padding: 22px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.full-width { grid-column: 1 / -1; }
.field-group { display: flex; flex-direction: column; gap: 8px; }
label { font-weight: 600; }
input, select {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 15px;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus {
  outline: 2px solid rgba(0, 153, 204, 0.2);
  border-color: var(--primary);
}
.check-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.check-grid label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-weight: 500;
}
.check-grid input { width: auto; min-height: 0; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  border: 0;
  border-radius: 12px;
  min-height: 48px;
  padding: 0 20px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-strong); }
.btn-secondary { background: var(--secondary); color: #ffffff; }
.summary-card { padding: 22px; position: sticky; top: 18px; }
.summary-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 14px 0; border-top: 1px solid var(--border);
}
.summary-total strong { font-size: 24px; color: var(--primary-strong); }
.form-message { min-height: 20px; margin: 0; }
.form-message.error { color: var(--danger); }
.form-message.success { color: var(--primary); }
@media (max-width: 860px) {
  .layout-grid { grid-template-columns: 1fr; }
  .summary-card { position: static; }
}
@media (max-width: 640px) {
  .form-card { grid-template-columns: 1fr; }
  .check-grid { grid-template-columns: 1fr; }
}