:root {
  --bg-page: #f5f5f7;
  --bg-surface: #ffffff;
  --border-subtle: #e2e2e8;
  --text-main: #111827;
  --text-soft: #6b7280;

  --accent-blue: #0074d9;
  --accent-blue-dark: #0056a8;
  --accent-violet: #6d28d9;
  --accent-violet-soft: #ede9fe;

  --radius-md: 8px;
  --radius-lg: 10px;
  --shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.05);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg-page);
  color: var(--text-main);
}

/* Layout */

.form-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.form-header {
  border-bottom: 1px solid var(--border-subtle);
  background: #ffffff;
}

.form-header-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0.7rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.form-back {
  font-size: 0.8rem;
  color: var(--accent-blue-dark);
  text-decoration: none;
}

.form-back:hover {
  text-decoration: underline;
}

.form-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.form-mark {
  width: 32px;
  height: 32px;
  border-radius: 9px;
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-blue-dark);
}

.form-brand-text {
  display: flex;
  flex-direction: column;
}

.form-brand-title {
  font-size: 0.9rem;
  font-weight: 600;
}

.form-brand-sub {
  font-size: 0.75rem;
  color: var(--text-soft);
}

/* Main */

.form-main {
  flex: 1;
  max-width: 800px;
  margin: 0 auto;
  padding: 1.5rem 1rem 2.2rem;
}

.form-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
  padding: 1.5rem 1.6rem 1.7rem;
}

.form-title {
  margin: 0 0 0.3rem;
  font-size: 1.4rem;
}

.form-subtitle {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--text-soft);
}

/* Meta */

.form-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
  font-size: 0.8rem;
}

.badge {
  padding: 0.18rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: #f9fafb;
  color: var(--text-soft);
}

.badge-light {
  background: var(--accent-violet-soft);
  color: var(--accent-violet);
  border-color: var(--accent-violet-soft);
}

/* Erreurs */

.error-box {
  background: #fef2f2;
  border-radius: var(--radius-md);
  border: 1px solid #fecaca;
  padding: 0.7rem 0.9rem;
  font-size: 0.84rem;
  color: #991b1b;
  margin-bottom: 0.9rem;
}

.error-box ul {
  margin: 0.3rem 0 0;
  padding-left: 1.1rem;
}

/* Formulaire */

.form-grid {
  display: grid;
  gap: 0.9rem;
}

.form-field label {
  display: block;
  font-size: 0.84rem;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.form-field small {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.78rem;
  color: var(--text-soft);
}

input[type=text],
input[type=email],
select,
textarea {
  width: 100%;
  padding: 0.5rem 0.55rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: #f9fafb;
  font-size: 0.9rem;
  color: var(--text-main);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--accent-blue);
  outline-offset: 1px;
  border-color: transparent;
  background: #ffffff;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

/* Checkbox */

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-soft);
}

.checkbox-row input[type=checkbox] {
  margin-top: 0.15rem;
}

/* Pied de formulaire */

.form-footer {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-soft);
}

.btn-primary {
  appearance: none;
  border-radius: 999px;
  border: 1px solid var(--accent-blue);
  background: var(--accent-blue);
  color: #ffffff;
  padding: 0.55rem 1.3rem;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  align-self: flex-start;
}

.btn-primary:hover {
  background: var(--accent-blue-dark);
  border-color: var(--accent-blue-dark);
}

.form-legal a {
  color: var(--accent-blue-dark);
}

/* Responsive */

@media (max-width: 640px) {
  .form-header-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}