:root {
  --brief-ink: #0b0b0b;
  --brief-muted: #5f5f5f;
  --brief-line: #d7d7d7;
  --brief-surface: #f7f7f4;
  --brief-yellow: #ffdf59;
  --brief-red: #ff0000;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body.sliva-brief-body {
  margin: 0;
  color: var(--brief-ink);
  background: #fff;
  font-family: Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}
.brief-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(1180px, calc(100% - 48px));
  min-height: 82px;
  margin: 0 auto;
  border-bottom: 1px solid var(--brief-line);
}
.brief-logo { color: var(--brief-ink); font-size: 19px; font-weight: 700; letter-spacing: .08em; text-decoration: none; }
.brief-nav { display: flex; gap: 22px; align-items: center; font-size: 13px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; }
.brief-nav a { position: relative; color: var(--brief-ink); text-decoration: none; }
.brief-nav a::after { content: ''; position: absolute; left: 0; top: 50%; width: 0; border-bottom: 2px solid var(--brief-red); transition: width .3s ease; }
.brief-nav a:hover::after, .brief-nav a:focus-visible::after { width: 100%; }
.brief-main { width: min(920px, calc(100% - 48px)); margin: 0 auto; padding: 74px 0 96px; }
.brief-kicker { margin: 0 0 12px; color: var(--brief-red); font-size: 13px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.brief-title { max-width: 900px; margin: 0 auto; text-align: center; font-size: clamp(40px, 7vw, 78px); font-weight: 400; letter-spacing: -.04em; line-height: .98; }
.brief-intro { max-width: 900px; margin: 34px auto 58px; color: #333; text-align: center; font-size: clamp(22px, 3vw, 34px); font-weight: 400; letter-spacing: -.025em; line-height: 1.16; }
.brief-notice { margin: 0 0 42px; padding: 18px 20px; border-left: 4px solid var(--brief-yellow); background: var(--brief-surface); }
.brief-notice strong { display: block; margin-bottom: 4px; }
.brief-form { display: grid; gap: 18px; }
.brief-section { margin: 20px 0 6px; padding: 30px 0 4px; border-top: 1px solid var(--brief-line); }
.brief-section h2 { margin: 0 0 6px; font-size: 24px; font-weight: 500; letter-spacing: -.02em; }
.brief-section p { margin: 0; color: var(--brief-muted); }
.brief-optional { margin: 18px 0 8px; border-top: 1px solid var(--brief-line); border-bottom: 1px solid var(--brief-line); }
.brief-optional summary { padding: 18px 0; color: var(--brief-ink); font-weight: 500; cursor: pointer; }
.brief-optional summary::marker { color: var(--brief-red); }
.brief-optional__body { padding-bottom: 10px; }
.brief-field { display: grid; gap: 8px; padding: 20px 0; }
.brief-field.is-hidden { display: none; }
.brief-field[hidden] { display: none; }
.brief-field label, .brief-field legend { font-weight: 500; line-height: 1.35; }
.brief-field legend { padding: 0; }
.brief-field small { display: block; color: var(--brief-muted); font-size: 15px; line-height: 1.4; }
.brief-required { color: var(--brief-red); }
.brief-input, .brief-select {
  width: 100%; min-height: 52px; padding: 13px 15px; border: 1px solid #aaa; border-radius: 0; color: var(--brief-ink); background: #fff; font: inherit;
}
.brief-textarea { min-height: 120px; resize: vertical; }
.brief-input:focus, .brief-select:focus, .brief-textarea:focus, .brief-option input:focus-visible { outline: 3px solid rgba(255, 0, 0, .2); outline-offset: 2px; border-color: var(--brief-red); }
.brief-options { display: grid; gap: 10px; margin: 0; padding: 0; border: 0; }
.brief-option { display: flex; align-items: flex-start; gap: 10px; padding: 10px 12px; border: 1px solid var(--brief-line); cursor: pointer; }
.brief-option:hover { border-color: var(--brief-ink); }
.brief-option input { width: 19px; height: 19px; flex: 0 0 auto; margin: 2px 0 0; accent-color: var(--brief-ink); }
.brief-consent { display: flex; gap: 12px; align-items: flex-start; padding: 20px 0; }
.brief-consent input { width: 20px; height: 20px; flex: 0 0 auto; margin-top: 3px; accent-color: var(--brief-ink); }
.brief-actions { display: flex; align-items: center; gap: 18px; margin-top: 24px; }
.brief-submit { min-height: 54px; padding: 14px 26px; border: 0; border-radius: 20px; color: var(--brief-ink); background: var(--brief-yellow); font: inherit; font-weight: 500; cursor: pointer; }
.brief-submit:hover, .brief-submit:focus-visible { background: #f4cf3c; }
.brief-submit:disabled { cursor: wait; opacity: .55; }
.brief-status { min-height: 28px; margin: 0; font-weight: 500; }
.brief-status[data-state="error"] { color: #b00020; }
.brief-status[data-state="success"] { color: #176b37; }
.brief-error { color: #b00020; font-size: 14px; }
.brief-field[aria-invalid="true"] .brief-input, .brief-field[aria-invalid="true"] .brief-select { border-color: #b00020; }
.privacy-main { width: min(920px, calc(100% - 48px)); margin: 0 auto; padding: 74px 0 96px; }
.privacy-title { max-width: 900px; margin: 0 auto 58px; text-align: center; font-size: clamp(38px, 6vw, 68px); font-weight: 400; letter-spacing: -.04em; line-height: 1; }
.privacy-copy { color: #333; font-size: 17px; line-height: 1.6; }
.privacy-copy h2 { margin: 58px 0 18px; color: var(--brief-ink); font-size: 24px; font-weight: 500; letter-spacing: -.02em; line-height: 1.2; text-transform: lowercase; }
.privacy-copy h2:first-child { margin-top: 0; }
.privacy-copy p { margin: 0 0 20px; }
.privacy-copy ul { display: grid; gap: 12px; margin: 0 0 24px; padding-left: 24px; }
.privacy-copy li { padding-left: 4px; }
.privacy-copy a { color: inherit; text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 680px) {
  .brief-header { width: min(100% - 32px, 1180px); }
  .brief-main { width: min(100% - 32px, 920px); padding: 48px 0 64px; }
  .privacy-main { width: min(100% - 32px, 920px); padding: 48px 0 64px; }
  .privacy-title { margin-bottom: 42px; font-size: 36px; }
  .privacy-copy { font-size: 16px; }
  .privacy-copy h2 { font-size: 22px; }
  .brief-nav { gap: 12px; font-size: 11px; }
  .brief-intro { margin: 24px auto 38px; font-size: 22px; }
  .brief-actions { align-items: stretch; flex-direction: column; }
  .brief-submit { width: 100%; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }