:root {
  --bg: #f6f3ee;
  --panel: #fffdf9;
  --ink: #1f2933;
  --muted: #66758a;
  --line: #ddd4c8;
  --brand: #4d2512;
  --brand-soft: #d9bf97;
  --shadow: 0 12px 32px rgba(52, 39, 27, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #faf7f2 0%, var(--bg) 100%);
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 300px 1fr;
}

.sidebar {
  padding: 28px;
  background: linear-gradient(180deg, #2a1810 0%, #4d2512 100%);
  color: #fff8ef;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  opacity: 0.78;
}

.sidebar h1,
.panel h2 {
  margin: 0;
}

.sidebar-copy {
  line-height: 1.6;
  color: rgba(255, 248, 239, 0.82);
}

.dealer-card {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.content {
  padding: 28px;
  display: block;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 22px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 12px;
  margin-bottom: 20px;
}

.quote-form .form-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field-full {
  grid-column: 1 / -1;
}

label {
  font-size: 14px;
  color: var(--muted);
}

.field-invalid label {
  color: #b42318;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 14px;
  font: inherit;
  color: var(--ink);
  background: #fff;
}

.input-invalid {
  border-color: #d92d20;
  box-shadow: 0 0 0 3px rgba(217, 45, 32, 0.12);
}

input[readonly] {
  background: #f3f4f6;
  font-weight: 600;
}

textarea {
  resize: vertical;
}

.actions {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.button-primary {
  background: var(--brand);
  color: #fff;
}

.button-secondary {
  background: var(--brand-soft);
  color: var(--brand);
}

.status-message {
  margin: 0;
  min-height: 20px;
  color: #1f7a4c;
  font-weight: 600;
}

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .quote-form .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .sidebar,
  .content {
    padding: 20px;
  }

  .quote-form .form-grid {
    grid-template-columns: 1fr;
  }
}