.brief-shell {
  --brief-mint: #b4f9d4;
  --brief-blue: #4358ff;
  --brief-text: #f6f8ff;
  --brief-muted: #9ba4b7;
  --brief-border: #ffffff15;
  position: relative;
  width: 100%;
  padding: clamp(22px, 4.8vw, 56px);
  overflow: hidden;
  border: 1px solid var(--brief-border);
  border-radius: 24px;
  color: var(--brief-text);
  background: #101526;
  font-family: inherit;
  text-align: left;
  isolation: isolate;
}

.brief-shell,
.brief-shell * { box-sizing: border-box; }

.brief-shell button,
.brief-shell input,
.brief-shell textarea,
.brief-shell a { font: inherit; }

.brief-shell button,
.brief-shell a,
.brief-shell input,
.brief-shell textarea { -webkit-tap-highlight-color: transparent; }

.brief-shell button { cursor: pointer; }

.brief-shell button:focus-visible,
.brief-shell a:focus-visible,
.brief-shell input:focus-visible,
.brief-shell textarea:focus-visible {
  outline: 2px solid var(--brief-mint);
  outline-offset: 5px;
}

.brief-shell button:disabled { cursor: not-allowed; }

.brief-progress { margin-bottom: 38px; }
.brief-progress-meta { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brief-eyebrow { color: var(--brief-muted); font-size: 10px; font-weight: 600; letter-spacing: .15em; line-height: 1.5; }
.brief-step-count { flex-shrink: 0; color: var(--brief-mint); font-size: 11px; font-weight: 600; letter-spacing: .06em; }
.brief-progress-track { height: 2px; margin-top: 19px; background: #ffffff13; overflow: hidden; }
.brief-progress-fill { display: block; height: 100%; background: var(--brief-mint); transition: width 450ms ease; }
.brief-stages { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 16px 0 0; padding: 0; list-style: none; }
.brief-stage { display: flex; align-items: center; gap: 8px; color: #737e97; font-size: 11px; line-height: 1.5; }
.brief-stage-index { font-size: 10px; font-variant-numeric: tabular-nums; }
.brief-stage[aria-current='step'] { color: var(--brief-text); }
.brief-stage-done { color: var(--brief-mint); }
.brief-visual-direction { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; max-width: 100%; margin: -13px 0 24px; padding: 9px 12px; border: 1px solid #b4f9d42b; border-radius: 6px; background: #b4f9d407; line-height: 1.5; }
.brief-visual-direction-label { color: var(--brief-muted); font-size: 8px; font-weight: 600; letter-spacing: .11em; }
.brief-visual-direction-value { color: var(--brief-mint); font-size: 11px; font-weight: 600; overflow-wrap: anywhere; }
.brief-content { position: relative; animation: brief-enter 330ms ease both; }
.brief-header { max-width: 650px; margin-bottom: 30px; }
.brief-title { margin: 0; font-family: 'Inter Tight', 'Manrope', sans-serif; font-size: clamp(26px, 3vw, 39px); font-weight: 550; line-height: 1.13; letter-spacing: -.035em; text-wrap: balance; }
.brief-title:focus { outline: none; }
.brief-description { margin: 13px 0 0; max-width: 550px; color: var(--brief-muted); font-size: 14px; line-height: 1.7; }
.brief-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.brief-options-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.brief-option {
  min-width: 0;
  min-height: 157px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: 21px;
  border: 1px solid #ffffff16;
  border-radius: 12px;
  color: var(--brief-text);
  background: #ffffff02;
  text-align: left;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}
.brief-option-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 17px; }
.brief-option-index { color: #8e98b0; font-size: 11px; font-weight: 500; letter-spacing: .03em; }
.brief-option-mark { display: flex; align-items: center; justify-content: center; width: 19px; height: 19px; border: 1px solid #ffffff2b; border-radius: 50%; font-size: 11px; color: transparent; transition: background 180ms ease, border-color 180ms ease; }
.brief-option-title { display: block; font-size: 16px; font-weight: 550; line-height: 1.3; letter-spacing: -.02em; }
.brief-option-description { display: block; margin-top: 8px; color: var(--brief-muted); font-size: 12px; line-height: 1.65; }
.brief-option[aria-pressed='true'] { border-color: #b4f9d48c; background: #b4f9d409; }
.brief-option[aria-pressed='true'] .brief-option-index { color: var(--brief-mint); }
.brief-option[aria-pressed='true'] .brief-option-mark { color: #101526; background: var(--brief-mint); border-color: var(--brief-mint); }
.brief-navigation { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-top: 28px; }
.brief-navigation-start { min-width: 0; }
.brief-duration { display: block; color: var(--brief-muted); font-size: 11px; line-height: 1.6; }
.brief-button { display: inline-flex; align-items: center; justify-content: center; gap: 22px; min-height: 48px; padding: 13px 21px; border: 1px solid transparent; border-radius: 7px; font-size: 12px !important; font-weight: 650 !important; line-height: 1.4; text-decoration: none; transition: opacity 180ms ease, background 180ms ease, transform 180ms ease, border-color 180ms ease; }
.brief-button svg { flex: 0 0 auto; transition: transform 180ms ease; }
.brief-button-primary { color: #101526; background: var(--brief-mint); }
.brief-button-primary:disabled { color: #82918d; background: #b4f9d419; }
.brief-button-secondary { border-color: #ffffff24; color: var(--brief-text); background: transparent; }
.brief-button-secondary:disabled { opacity: .5; }
.brief-button-back { min-height: 44px; padding: 10px 0; color: var(--brief-muted); background: transparent; font-size: 12px !important; font-weight: 500 !important; }
.brief-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--brief-border); }
.brief-local-label { color: #7d879f; font-size: 10px; line-height: 1.5; }
.brief-reset { min-height: 44px; margin: -10px -8px -10px 0; padding: 10px 8px; border: 0; color: var(--brief-muted); background: transparent; font-size: 10px !important; text-decoration: underline; text-underline-offset: 4px; }
.brief-announcement { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.brief-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 20px; }
.brief-field { min-width: 0; }
.brief-field-wide { grid-column: 1 / -1; }
.brief-label { display: block; margin-bottom: 9px; font-size: 12px; font-weight: 550; }
.brief-optional { color: var(--brief-muted); font-size: 11px; font-weight: 400; }
.brief-input { display: block; width: 100%; min-height: 49px; padding: 13px 14px; border: 1px solid #ffffff21; border-radius: 7px; color: var(--brief-text); background: #080c184f; font-size: 13px !important; line-height: 1.6; transition: border-color 180ms ease; }
.brief-input::placeholder { color: #7d879e; opacity: 1; }
.brief-shell textarea.brief-input { resize: vertical; }
.brief-input[aria-invalid='true'] { border-color: #ff9b91; }
.brief-field-error { margin: 7px 0 0; color: #ffb7af; font-size: 11px; line-height: 1.5; }
.brief-field-error:empty { display: none; }
.brief-data-note { grid-column: 1 / -1; margin: 0; max-width: 560px; color: var(--brief-muted); font-size: 11px; line-height: 1.65; }
.brief-form-navigation { grid-column: 1 / -1; margin-top: 5px; }
.brief-recommendation { position: relative; margin-bottom: 27px; padding: 24px 26px 23px; border-left: 2px solid var(--brief-mint); border-radius: 0 10px 10px 0; background: linear-gradient(110deg, #b4f9d40c, #4358ff0b); }
.brief-recommendation-label { color: var(--brief-mint); font-size: 9px; font-weight: 650; letter-spacing: .16em; }
.brief-recommendation-title { margin: 11px 0 9px; font-family: 'Inter Tight', 'Manrope', sans-serif; font-size: clamp(22px, 2.4vw, 29px); font-weight: 500; line-height: 1.17; letter-spacing: -.025em; }
.brief-recommendation-description { margin: 0; max-width: 570px; color: #c8cfde; font-size: 13px; line-height: 1.7; }
.brief-recommendation-rule { margin: 15px 0 0; max-width: 590px; color: var(--brief-muted); font-size: 10px; line-height: 1.7; }
.brief-summary { margin: 0 0 25px; }
.brief-summary-row { display: grid; grid-template-columns: 94px minmax(0, 1fr); gap: 15px; padding: 11px 0; border-bottom: 1px solid #ffffff0b; font-size: 12px; line-height: 1.6; }
.brief-summary-label { color: var(--brief-muted); }
.brief-summary-value { margin: 0; color: #e0e5f1; white-space: pre-wrap; overflow-wrap: anywhere; }
.brief-summary-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.brief-instagram { display: inline-flex; align-items: center; min-height: 44px; padding: 10px 5px; color: var(--brief-muted); font-size: 11px !important; line-height: 1.5; text-decoration: underline; text-underline-offset: 4px; }
.brief-feedback { margin: 12px 0 0; color: var(--brief-mint); font-size: 12px; line-height: 1.6; }
.brief-feedback:empty { display: none; }
.brief-share-note { margin: 15px 0 0; max-width: 570px; color: var(--brief-muted); font-size: 10px; line-height: 1.75; }
.brief-edit { margin-top: 12px; }
.brief-copy-probe { position: fixed; top: 0; left: 0; width: 1px; height: 1px; padding: 0; border: 0; opacity: 0; }
.brief-manual-copy { margin-top: 15px; }

@media (hover: hover) and (pointer: fine) {
  .brief-option:hover { border-color: #ffffff45; background: #ffffff05; transform: translateY(-2px); }
  .brief-option[aria-pressed='true']:hover { border-color: var(--brief-mint); background: #b4f9d40d; }
  .brief-button-primary:not(:disabled):hover { background: #d0ffe6; }
  .brief-button-primary:not(:disabled):hover svg { transform: translateX(3px); }
  .brief-button-secondary:not(:disabled):hover { background: #ffffff08; border-color: #ffffff55; }
  .brief-button-back:hover,
  .brief-reset:hover,
  .brief-instagram:hover { color: var(--brief-mint); }
}

@media (max-width: 760px) {
  .brief-options-3 { grid-template-columns: 1fr; }
  .brief-options-3 .brief-option { min-height: 0; padding: 17px 19px; }
  .brief-options-3 .brief-option-top { margin-bottom: 10px; }
  .brief-options-3 .brief-option-description { margin-top: 5px; }
  .brief-option-title { font-size: 15px; }
  .brief-option-description { font-size: 12px; }
}

@media (max-width: 480px) {
  .brief-shell { padding: 24px 19px; border-radius: 17px; }
  .brief-progress { margin-bottom: 28px; }
  .brief-eyebrow { max-width: 165px; font-size: 8px; letter-spacing: .1em; }
  .brief-step-count { font-size: 10px; }
  .brief-stages { gap: 8px; }
  .brief-stage { flex-direction: column; align-items: flex-start; gap: 4px; font-size: 9px; }
  .brief-stage-index { font-size: 9px; }
  .brief-header { margin-bottom: 24px; }
  .brief-title { font-size: clamp(25px, 7vw, 33px); }
  .brief-description { font-size: 12px; line-height: 1.7; }
  .brief-options { grid-template-columns: 1fr; gap: 10px; }
  .brief-option { min-height: 0; padding: 17px 18px; }
  .brief-option-top { margin-bottom: 9px; }
  .brief-option-description { margin-top: 5px; }
  .brief-navigation { gap: 14px; margin-top: 24px; }
  .brief-duration { max-width: 90px; font-size: 10px; }
  .brief-button { gap: 12px; padding: 13px 16px; font-size: 11px !important; }
  .brief-button-back { padding-left: 0; padding-right: 0; }
  .brief-form { grid-template-columns: 1fr; gap: 18px; }
  .brief-input { font-size: 16px !important; }
  .brief-form-navigation { margin-top: 3px; }
  .brief-recommendation { padding: 20px 18px; }
  .brief-recommendation-description { font-size: 12px; }
  .brief-summary-row { grid-template-columns: 66px minmax(0, 1fr); gap: 10px; font-size: 11px; }
  .brief-summary-actions { align-items: stretch; }
  .brief-summary-actions .brief-button-primary { width: 100%; }
  .brief-summary-actions .brief-button-secondary { flex-grow: 1; }
  .brief-instagram { justify-content: center; flex-grow: 1; font-size: 10px !important; }
  .brief-local-label { max-width: 115px; font-size: 9px; }
  .brief-reset { font-size: 9px !important; }
}

@keyframes brief-enter { from { opacity: 0; transform: translateY(7px); } to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: reduce) {
  .brief-shell *,
  .brief-shell *::before,
  .brief-shell *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .brief-option:hover { transform: none; }
}