.brief-wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 6rem 1.5rem 4rem;
}

.brief-header { margin-bottom: 2.5rem; }
.brief-header h1 { font-size: 2.4rem; margin-bottom: 0.75rem; }
.brief-header .lead { color: var(--light); font-size: 0.95rem; }

.step-bar {
  display: flex;
  gap: 0.35rem;
  margin-top: 2rem;
}

.step-bar .step {
  flex: 1;
  text-align: center;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.5rem 0.25rem;
  background: var(--white);
  color: var(--light);
  border-bottom: 2px solid transparent;
}

.step-bar .step.active {
  color: var(--dark);
  border-bottom-color: var(--accent);
  font-weight: 500;
}

.step-bar .step.done { color: var(--accent); }

.brief-form fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

.step-panel { display: none; }
.step-panel.active { display: block; }

.step-panel h2 {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
}

.brief-form label {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  margin-bottom: 1.25rem;
  color: var(--text);
}

.brief-form input,
.brief-form select,
.brief-form textarea {
  display: block;
  width: 100%;
  margin-top: 0.4rem;
  padding: 0.85rem 1rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 300;
  border: 1px solid rgba(129, 110, 131, 0.25);
  background: var(--white);
  color: var(--dark);
}

.brief-form input:focus,
.brief-form select:focus,
.brief-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-nav {
  display: flex;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(129,110,131,0.15);
}

.hidden { display: none !important; }

.form-error {
  color: #8a4040;
  font-size: 0.85rem;
  margin-top: 1rem;
}

.brief-success {
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
  padding: 8rem 1.5rem;
}

.brief-success h1 { font-size: 2.5rem; margin-bottom: 1rem; }
.brief-success p { color: var(--light); margin-bottom: 1rem; }
.brief-success .ref-id { font-size: 0.75rem; color: var(--accent); letter-spacing: 0.05em; }

.brief-form button:disabled { opacity: 0.4; cursor: not-allowed; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}

.brief-context { margin-bottom: 1.5rem; }
.brief-context a { color: var(--accent); }
.brief-success a { color: var(--accent); }