.brief-page {
  min-height: 70vh;
  padding: clamp(2rem, 5vw, 4.5rem) 1rem 5rem;
  color: var(--text, #243142);
  background: var(--bg, #f7f9fc);
}
.brief-wrap { width: min(100%, 760px); margin: 0 auto; }
.brief-back { display: inline-block; margin-bottom: 1.5rem; color: var(--text-2, #536174); text-decoration: none; }
.brief-back:hover { color: var(--accent, #d63819); }
.brief-heading { margin-bottom: 2rem; }
.brief-eyebrow { margin: 0 0 .5rem; color: var(--accent, #d63819); font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.brief-heading h1 { margin: 0 0 .75rem; color: var(--text, #243142); font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.08; }
.brief-heading > p:last-child, .brief-hint { max-width: 620px; color: var(--text-2, #536174); line-height: 1.6; }
.brief-form { padding: clamp(1.2rem, 4vw, 2.4rem); border: 1px solid var(--line, #cbd5e1); border-radius: 4px; background: var(--surface, #eef2f7); }
.brief-progress { margin: 0 0 2rem; color: var(--text-2, #536174); font-size: .9rem; font-weight: 600; }
.brief-progress__track { height: 5px; margin-top: .6rem; overflow: hidden; border-radius: 9px; background: var(--line, #cbd5e1); }
.brief-progress__track span { display: block; width: 33.333%; height: 100%; border-radius: inherit; background: var(--accent, #d63819); transition: width .2s ease; }
.brief-step + .brief-step { margin-top: 2.5rem; padding-top: 2rem; border-top: 1px solid var(--line, #cbd5e1); }
.brief-form.is-enhanced .brief-step + .brief-step { margin-top: 0; padding-top: 0; border-top: 0; }
.brief-step h2 { display: flex; align-items: baseline; gap: .75rem; margin: 0 0 1.5rem; color: var(--text, #243142); font-size: 1.45rem; }
.brief-step h2 span { color: var(--accent, #d63819); font-size: .9rem; }
.brief-field { display: block; margin: 0 0 1.2rem; }
.brief-field > span, .brief-fieldset legend { display: block; margin-bottom: .5rem; color: var(--text, #243142); font-weight: 600; }
.brief-field small, .brief-fieldset small { color: var(--text-3, #68768a); font-size: .82em; font-weight: 400; }
.brief-field input:not([type=checkbox]), .brief-field select, .brief-field textarea { box-sizing: border-box; display: block; width: 100%; min-height: 48px; padding: .75rem .9rem; border: 1px solid var(--line, #cbd5e1); border-radius: 3px; color: var(--text, #243142); background: var(--bg, #f7f9fc); font: inherit; }
.brief-field textarea { resize: vertical; }
.brief-field input:focus-visible, .brief-field select:focus-visible, .brief-field textarea:focus-visible { outline: 2px solid var(--accent, #d63819); outline-offset: 2px; }
.brief-fieldset { min-width: 0; padding: 0; border: 0; }
.brief-fieldset legend { margin-bottom: .7rem; }
.brief-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .6rem; }
.brief-option { display: flex; align-items: flex-start; gap: .65rem; min-height: 44px; padding: .65rem .75rem; border: 1px solid var(--line, #cbd5e1); border-radius: 3px; color: var(--text, #243142); background: var(--bg, #f7f9fc); cursor: pointer; }
.brief-option input { flex: 0 0 auto; margin: .2rem 0 0; accent-color: var(--accent, #d63819); }
.brief-option:has(input:checked) { border-color: var(--accent, #d63819); }
.brief-form .consent-field { margin: 1rem 0; }
.brief-form .consent-field label { color: var(--text-2, #536174); line-height: 1.5; }
.brief-form .consent-field a { color: var(--accent, #d63819); }
.brief-actions { display: flex; justify-content: flex-end; gap: .75rem; margin-top: 1.7rem; }
.brief-button { min-height: 48px; padding: .75rem 1.4rem; border: 1px solid var(--accent, #d63819); border-radius: 3px; color: var(--accent-ink, #fff); background: var(--accent, #d63819); font: inherit; font-weight: 700; cursor: pointer; }
.brief-button:hover { background: var(--accent-hot, #bd2d11); }
.brief-button--secondary { color: var(--text, #243142); border-color: var(--line, #cbd5e1); background: transparent; }
.brief-button--secondary:hover { background: var(--surface-2, #e5ebf2); }
.brief-note { margin: 1rem 0 0; color: var(--text-3, #68768a); font-size: .85rem; line-height: 1.5; }
.brief-errors, .brief-success { margin: 0 0 1rem; padding: 1rem 1.2rem; border-radius: 4px; line-height: 1.5; }
.brief-errors { border: 1px solid #c94b3c; color: var(--text, #243142); background: var(--surface, #eef2f7); }
.brief-errors ul { margin: .5rem 0 0; padding-left: 1.2rem; }
.brief-success { border: 1px solid #3b8c64; color: var(--text, #243142); background: var(--surface, #eef2f7); }

dialog.brief-dialog {
  width: min(760px, calc(100vw - 32px));
  max-width: 760px;
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line, #cbd5e1);
  border-radius: 5px;
  color: var(--text, #243142);
  background: var(--bg, #f7f9fc);
  box-shadow: 0 24px 90px rgba(7, 14, 24, .42);
}
dialog.brief-dialog::backdrop {
  background: rgba(7, 14, 24, .72);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
dialog.brief-dialog[open] {
  display: flex;
  flex-direction: column;
}
.brief-dialog__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex: 0 0 auto;
  gap: 20px;
  padding: 22px 26px 18px;
  border-bottom: 1px solid var(--line, #cbd5e1);
}
.brief-dialog__head .brief-eyebrow { margin: 0 0 .45rem; }
.brief-dialog__head h2 { margin: 0; color: var(--text, #243142); font-size: clamp(1.45rem, 4vw, 2rem); line-height: 1.15; }
.brief-dialog__close {
  width: 42px;
  height: 42px;
  flex: 0 0 42px;
  border: 1px solid var(--line, #cbd5e1);
  border-radius: 3px;
  color: var(--text-2, #536174);
  background: var(--surface, #eef2f7);
  font: 300 28px/1 sans-serif;
  cursor: pointer;
}
.brief-dialog__close:hover,
.brief-dialog__close:focus-visible { border-color: var(--accent, #d63819); color: var(--text, #243142); }
.brief-dialog__close:focus-visible { outline: 2px solid var(--accent, #d63819); outline-offset: 2px; }
.brief-dialog__body {
  min-height: 0;
  flex: 1 1 auto;
  overflow-y: auto;
  padding: 22px 26px 26px;
  overscroll-behavior: contain;
}
.brief-dialog__body .brief-form { margin: 0; }

@media (max-width: 560px) {
  .brief-page { padding-inline: .75rem; }
  .brief-options { grid-template-columns: 1fr; }
  .brief-actions { justify-content: stretch; }
  .brief-button { flex: 1; }
}
@media (max-width: 600px) {
  dialog.brief-dialog { width: calc(100vw - 20px); max-height: calc(100dvh - 20px); }
  .brief-dialog__head { gap: 12px; padding: 16px 16px 14px; }
  .brief-dialog__body { max-height: none; padding: 16px; }
}