.briefing-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 8%, rgba(216,255,63,0.14), transparent 32vw),
    radial-gradient(circle at 88% 18%, rgba(57,231,255,0.13), transparent 30vw),
    radial-gradient(circle at 55% 90%, rgba(255,61,127,0.09), transparent 34vw),
    #050505;
}

.briefing-atmosphere {
  position: fixed;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  pointer-events: none;
  mix-blend-mode: screen;
}

.briefing-header,
.briefing-hero,
.briefing-builder {
  position: relative;
  z-index: 2;
}

.briefing-header {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.briefing-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
}

.briefing-nav a {
  text-decoration: none;
}

.briefing-nav-cta {
  color: var(--acid) !important;
}

.briefing-hero {
  width: min(var(--max), calc(100% - 44px));
  margin: 0 auto;
  min-height: 420px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.38fr);
  align-items: end;
  gap: clamp(28px, 5vw, 72px);
  padding: 72px 0 54px;
}

.briefing-hero h1 {
  max-width: 960px;
  margin: 0;
  font-size: clamp(3.4rem, 8vw, 8rem);
  line-height: 0.88;
}

.briefing-hero p:not(.eyebrow) {
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.24rem);
}

.briefing-status {
  border: 1px solid var(--line);
  padding: 24px;
  background:
    radial-gradient(circle at 80% 12%, rgba(216,255,63,0.18), transparent 18vw),
    rgba(255,255,255,0.045);
}

.briefing-status span,
.briefing-status small {
  display: block;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.74rem;
}

.briefing-status strong {
  display: block;
  margin: 18px 0 8px;
  font-size: clamp(1.5rem, 3vw, 2.6rem);
  line-height: 0.96;
}

.briefing-builder {
  width: min(1420px, calc(100% - 44px));
  margin: 0 auto 80px;
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 0.64fr);
  gap: 22px;
  align-items: start;
}

.briefing-form,
.briefing-preview-shell {
  display: grid;
  gap: 18px;
}

.briefing-panel {
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(255,255,255,0.06), rgba(255,255,255,0.018)),
    rgba(0,0,0,0.34);
  padding: clamp(18px, 2.6vw, 30px);
}

.briefing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.briefing-panel label {
  display: grid;
  gap: 8px;
}

.briefing-panel span {
  color: var(--muted);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.briefing-panel input,
.briefing-panel textarea,
.briefing-panel select {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.46);
  color: var(--ink);
  padding: 13px 14px;
  outline: none;
  resize: vertical;
}

.briefing-panel input:focus,
.briefing-panel textarea:focus,
.briefing-panel select:focus {
  border-color: var(--acid);
  box-shadow: 0 0 0 1px rgba(216,255,63,0.2);
}

.briefing-wide {
  grid-column: 1 / -1;
}

.color-builder {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: start;
}

.color-list {
  display: grid;
  gap: 10px;
}

.color-chip-row {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 10px;
  align-items: center;
}

.color-chip-row input[type="color"] {
  height: 46px;
  padding: 3px;
  cursor: pointer;
}

.briefing-icon-button,
.remove-color {
  min-width: 46px;
  height: 46px;
  border: 1px solid var(--line);
  background: var(--acid);
  color: #050505;
  cursor: pointer;
  font-size: 1.35rem;
}

.remove-color {
  background: rgba(255,255,255,0.04);
  color: var(--ink);
}

.reference-preview,
.pdf-reference-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.reference-preview div,
.pdf-reference-grid div {
  min-height: 130px;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--muted);
  background: rgba(255,255,255,0.035);
  overflow: hidden;
}

.reference-preview img,
.pdf-reference-grid img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 10px;
}

.briefing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.briefing-preview-shell {
  position: sticky;
  top: 24px;
}

.briefing-preview {
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 85% 14%, rgba(216,255,63,0.16), transparent 28%),
    radial-gradient(circle at 20% 80%, rgba(57,231,255,0.14), transparent 30%),
    #070707;
  padding: 28px;
  color: var(--ink);
}

.pdf-cover {
  min-height: 300px;
  display: grid;
  align-content: end;
  border-bottom: 1px solid var(--line);
  padding-bottom: 24px;
}

.pdf-cover p,
.pdf-section small {
  color: var(--acid);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.pdf-cover h2 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  line-height: 0.9;
}

.pdf-cover span {
  color: var(--muted);
}

.pdf-section {
  padding: 20px 0;
  border-bottom: 1px solid rgba(248,244,234,0.12);
}

.pdf-section p {
  color: var(--muted);
}

.pdf-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.pdf-grid div {
  border: 1px solid rgba(248,244,234,0.12);
  padding: 14px;
  background: rgba(255,255,255,0.035);
}

.pdf-grid strong {
  display: block;
  margin-top: 8px;
}

.pdf-palette {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pdf-palette span {
  width: 74px;
  height: 74px;
  border: 1px solid rgba(248,244,234,0.22);
  display: grid;
  place-items: end center;
  padding: 6px;
  color: #fff;
  font-size: 0.62rem;
  text-shadow: 0 1px 8px rgba(0,0,0,0.8);
}

.pdf-section li {
  color: var(--muted);
  margin-bottom: 8px;
}

@media (max-width: 980px) {
  .briefing-hero,
  .briefing-builder {
    grid-template-columns: 1fr;
  }

  .briefing-preview-shell {
    position: static;
  }
}

@media (max-width: 620px) {
  .briefing-header,
  .briefing-hero,
  .briefing-builder {
    width: calc(100% - 34px);
  }

  .briefing-nav {
    gap: 12px;
    font-size: 0.86rem;
  }

  .briefing-grid,
  .reference-preview,
  .pdf-reference-grid,
  .pdf-grid {
    grid-template-columns: 1fr;
  }

  .color-chip-row {
    grid-template-columns: 52px 1fr;
  }

  .remove-color {
    grid-column: 1 / -1;
    width: 100%;
  }
}