/* ══════════════════════════════════════════
   APP SHELL — shared across product pages
   (autopilot, integrations, deep-dive, brief)
   Editorial newspaper frame: rail + masthead + chat.
   Scoped tokens under :root fall back to stylesheet.css.
═══════════════════════════════════════════ */

:root {
  --br-canvas:    #FBFAF6;
  --br-paper:     #FFFFFF;
  --br-ink:       #0B0E14;
  --br-ink-soft:  #3F4A5C;
  --br-faint:     #8A94A5;
  --br-hair:      #E7E3D8;
  --br-hair-soft: #EFEDE6;
  --br-accent:    #2563EB;
  --br-accent-2:  #1D4ED8;
  --br-critical:  #B42318;
  --br-warn:      #B54708;
  --br-good:      #067647;
  --br-ghost-bg:  #F4F1E8;
  --br-shadow:    0 1px 2px rgba(11,14,20,0.04), 0 12px 36px -18px rgba(11,14,20,0.10);
  --br-shadow-lg: 0 2px 4px rgba(11,14,20,0.06), 0 30px 60px -24px rgba(11,14,20,0.16);
  --br-num:       'Inconsolata', ui-monospace, monospace;
}

body.brief-page {
  background: var(--br-canvas);
  color: var(--br-ink);
  font-family: var(--font-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

body.brief-page::before {
  content: "";
  position: fixed; inset: 0; pointer-events: none;
  background-image: linear-gradient(to right, rgba(11,14,20,0.02) 1px, transparent 1px);
  background-size: 72px 100%;
  mask-image: linear-gradient(to bottom, transparent, #000 140px, #000 calc(100% - 140px), transparent);
  z-index: 0;
}

/* ── Layout ─────────────────────────────── */
.brief-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  min-height: 100vh;
}

/* ── Rail ────────────────────────────────── */
.brief-rail {
  border-right: 1px solid var(--br-hair);
  padding: 28px 20px;
  display: flex; flex-direction: column;
  gap: 32px;
  position: sticky; top: 0; height: 100vh;
  background: var(--br-canvas);
}
.brief-rail__logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-brand);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.6px;
  color: var(--br-ink);
  text-decoration: none;
}
.brief-rail__logo svg { flex-shrink: 0; }
.brief-rail__section-label {
  font-family: var(--font-brand);
  font-size: 10px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--br-faint);
  margin-bottom: 10px;
  padding-left: 10px;
}
.brief-rail__nav {
  display: flex; flex-direction: column;
  gap: 2px;
}
.brief-rail__link {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 10px;
  font-size: 13.5px;
  color: var(--br-ink-soft);
  border-radius: 6px;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
  position: relative;
}
.brief-rail__link:hover {
  background: var(--br-ghost-bg);
  color: var(--br-ink);
}
.brief-rail__link--active {
  color: var(--br-ink);
  font-weight: 600;
}
.brief-rail__link--active::before {
  content: "";
  position: absolute;
  left: -20px; top: 50%;
  width: 3px; height: 16px;
  background: var(--br-ink);
  transform: translateY(-50%);
}
.brief-rail__link svg { flex-shrink: 0; opacity: 0.7; }
.brief-rail__count {
  margin-left: auto;
  font-family: var(--br-num);
  font-size: 11px;
  color: var(--br-faint);
  background: var(--br-ghost-bg);
  padding: 2px 6px;
  border-radius: 4px;
}
.brief-rail__footer {
  margin-top: auto;
  display: flex; flex-direction: column; gap: 8px;
  padding-left: 4px;
}
.brief-rail__role {
  font-size: 12px;
  color: var(--br-faint);
  padding: 6px 10px;
  border: 1px dashed var(--br-hair);
  border-radius: 6px;
  display: flex; align-items: center; gap: 8px;
}
.brief-rail__role strong {
  font-family: var(--br-num);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-size: 10px;
  color: var(--br-ink);
}
.brief-rail__back {
  font-size: 12px;
  color: var(--br-faint);
  text-decoration: none;
  padding: 4px 10px;
}
.brief-rail__back:hover { color: var(--br-ink); }

/* ── Main column ────────────────────────── */
.brief-main {
  padding: 44px 56px 120px;
  max-width: 1240px;
  width: 100%;
}

/* ── Masthead ──────────────────────────── */
.brief-masthead {
  border-bottom: 1px solid var(--br-hair);
  padding-bottom: 28px;
  margin-bottom: 40px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 40px;
  align-items: end;
}
.brief-masthead__date {
  font-family: var(--br-num);
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--br-faint);
  margin-bottom: 14px;
  display: flex; gap: 18px;
}
.brief-masthead__date span + span::before {
  content: "·";
  margin-right: 18px;
  color: var(--br-hair);
}
.brief-masthead__greeting {
  font-family: var(--font-brand);
  font-size: 52px;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -2.2px;
  color: var(--br-ink);
  margin-bottom: 14px;
}
.brief-masthead__greeting em {
  font-family: var(--font-brand);
  font-style: italic;
  font-weight: 400;
  color: var(--br-ink-soft);
  padding-right: 2px;
}
.brief-masthead__summary {
  font-size: 15px;
  line-height: 1.55;
  color: var(--br-ink-soft);
  max-width: 560px;
  margin-bottom: 4px;
}
.brief-masthead__summary strong {
  color: var(--br-ink);
  font-weight: 600;
}
.brief-masthead > div:first-child {
  display: flex; flex-direction: column;
  align-items: flex-start;
}

.brief-stats {
  display: flex; flex-direction: column; gap: 14px;
  min-width: 260px;
  padding-bottom: 4px;
}
.brief-stats__row {
  display: flex; align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 6px 0;
  border-top: 1px solid var(--br-hair-soft);
}
.brief-stats__row:first-of-type { border-top: none; }
.brief-stats__key {
  font-size: 12px;
  color: var(--br-faint);
  font-family: var(--br-num);
  letter-spacing: 0.6px;
  text-transform: uppercase;
}
.brief-stats__val {
  font-family: var(--br-num);
  font-size: 16px;
  color: var(--br-ink);
  letter-spacing: -0.3px;
}

/* ══════════════════════════════════════════
   ASK-AI — masthead primary action
═══════════════════════════════════════════ */
.br-ask {
  display: inline-flex; align-items: center;
  gap: 12px;
  padding: 10px 14px 10px 12px;
  border-radius: 999px;
  background: var(--br-ink);
  color: var(--br-paper);
  border: 1px solid var(--br-ink);
  cursor: pointer;
  font-family: var(--font-primary);
  font-size: 13px;
  letter-spacing: -0.1px;
  box-shadow: 0 10px 28px -14px rgba(11,14,20,0.45);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
  align-self: flex-start;
  margin-top: 18px;
  position: relative;
  overflow: hidden;
}
.br-ask:hover {
  background: var(--br-accent);
  transform: translateY(-1px);
  box-shadow: 0 16px 36px -14px rgba(37,99,235,0.45);
}
.br-ask__ring {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, #FBFAF6 0%, rgba(251,250,246,0.5) 100%);
  color: var(--br-ink);
  display: inline-flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  position: relative;
}
.br-ask__ring::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid rgba(251,250,246,0.35);
  animation: askPulse 2.8s ease-out infinite;
}
@keyframes askPulse {
  0%   { transform: scale(0.92); opacity: 0.8; }
  80%  { transform: scale(1.5);  opacity: 0; }
  100% { transform: scale(1.5);  opacity: 0; }
}
.br-ask__label {
  display: flex; flex-direction: column;
  align-items: flex-start;
  line-height: 1.15;
}
.br-ask__label strong { font-weight: 600; letter-spacing: -0.1px; }
.br-ask__label em {
  font-family: var(--br-num);
  font-style: normal;
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: rgba(251,250,246,0.7);
}
.br-ask__kbd {
  font-family: var(--br-num);
  font-size: 10px;
  letter-spacing: 0.5px;
  padding: 3px 6px;
  border-radius: 4px;
  background: rgba(251,250,246,0.12);
  color: rgba(251,250,246,0.8);
  border: 1px solid rgba(251,250,246,0.18);
}

/* ══════════════════════════════════════════
   CONTEXTUAL INVITE — chips above content
═══════════════════════════════════════════ */
.br-camp-invite {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 16px 22px;
  margin-bottom: 24px;
  border: 1px solid var(--br-hair);
  border-radius: 10px;
  background:
    radial-gradient(circle at 8% 50%, rgba(37,99,235,0.05), transparent 42%),
    linear-gradient(180deg, #FFFDF4 0%, var(--br-paper) 100%);
  box-shadow: var(--br-shadow);
  position: relative;
  overflow: hidden;
}
.br-camp-invite::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--br-accent), var(--br-ink));
}
.br-camp-invite__eyebrow {
  font-family: var(--br-num);
  font-size: 10px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--br-faint);
  margin-bottom: 4px;
}
.br-camp-invite__title {
  font-family: var(--font-brand);
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.6px;
  color: var(--br-ink);
  line-height: 1.15;
  margin: 0 0 6px;
}
.br-camp-invite__title em {
  font-family: var(--font-brand);
  font-style: italic;
  font-weight: 400;
  color: var(--br-ink-soft);
}
.br-camp-invite__sub {
  font-size: 13px;
  color: var(--br-ink-soft);
  line-height: 1.45;
  max-width: 520px;
}
.br-camp-invite__chips {
  display: flex; flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.br-camp-invite__chip {
  font-family: var(--font-primary);
  font-size: 12px;
  padding: 6px 11px;
  border: 1px solid var(--br-hair);
  background: var(--br-paper);
  border-radius: 16px;
  color: var(--br-ink-soft);
  cursor: pointer;
  transition: all var(--transition-fast);
  line-height: 1;
}
.br-camp-invite__chip:hover {
  border-color: var(--br-ink);
  color: var(--br-ink);
  transform: translateY(-1px);
}
.br-camp-invite__cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  background: var(--br-ink);
  color: var(--br-paper);
  border-radius: 8px;
  border: none;
  font-family: var(--font-primary);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.1px;
  cursor: pointer;
  transition: all var(--transition-fast);
  align-self: start;
}
.br-camp-invite__cta:hover {
  background: var(--br-accent);
  transform: translateY(-1px);
}
.br-camp-invite__cta svg { opacity: 0.9; }

/* ══════════════════════════════════════════
   CHAT DOCK + CHAT PANE
═══════════════════════════════════════════ */
body.brief-page.has-chat-dock { padding-bottom: 84px; }

.chat-dock {
  position: fixed;
  left: 240px; right: 0; bottom: 0;
  z-index: 40;
  padding: 14px 28px 18px;
  background: linear-gradient(180deg, rgba(251,250,246,0) 0%, var(--br-canvas) 42%);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex; justify-content: center;
  pointer-events: none;
}
.chat-dock__inner {
  pointer-events: auto;
  position: relative;
  width: 100%;
  max-width: 820px;
  background: var(--br-paper);
  border: 1px solid var(--br-hair);
  border-radius: 14px;
  padding: 10px 12px;
  display: flex; align-items: center; gap: 10px;
  box-shadow: 0 12px 32px -16px rgba(11,14,20,0.18);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.chat-dock__inner:focus-within {
  border-color: var(--br-ink);
  box-shadow: 0 18px 44px -18px rgba(11,14,20,0.28);
}
.chat-dock__ctx {
  font-family: var(--br-num);
  font-size: 10px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--br-faint);
  padding: 4px 10px;
  background: var(--br-ghost-bg);
  border-radius: 20px;
  white-space: nowrap;
  flex-shrink: 0;
}
.chat-dock__field {
  flex: 1;
  border: none;
  background: transparent;
  font-family: var(--font-primary);
  font-size: 14.5px;
  color: var(--br-ink);
  resize: none;
  min-height: 24px;
  max-height: 96px;
  padding: 8px 6px;
  line-height: 1.4;
}
.chat-dock__field:focus { outline: none; }
.chat-dock__field::placeholder { color: var(--br-faint); }
.chat-dock__send {
  background: var(--br-ink);
  color: var(--br-paper);
  border: none;
  border-radius: 10px;
  width: 36px; height: 36px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}
.chat-dock__send:hover { background: var(--br-accent); }
.chat-dock__send:disabled { opacity: 0.3; cursor: not-allowed; }
.chat-dock__chips {
  position: absolute;
  left: 50%;
  top: -40px;
  transform: translateX(-50%);
  display: flex; gap: 6px;
  pointer-events: auto;
  opacity: 0.92;
  transition: opacity var(--transition-fast);
  max-width: calc(100vw - 40px);
  overflow-x: auto;
  padding: 0 20px;
}
.chat-dock:hover .chat-dock__chips,
.chat-dock__inner:focus-within ~ .chat-dock__chips { opacity: 1; }
.chat-dock__chip {
  font-family: var(--font-primary);
  font-size: 11.5px;
  padding: 6px 10px;
  background: var(--br-paper);
  border: 1px solid var(--br-hair);
  border-radius: 16px;
  color: var(--br-ink-soft);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}
.chat-dock__chip:hover { border-color: var(--br-ink); color: var(--br-ink); }

.chat-pane {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 420px;
  max-width: 100vw;
  background: var(--br-paper);
  border-left: 1px solid var(--br-hair);
  box-shadow: -24px 0 60px -24px rgba(11,14,20,0.18);
  transform: translateX(105%);
  transition: transform 0.32s cubic-bezier(0.22, 0.61, 0.36, 1);
  display: flex; flex-direction: column;
  z-index: 60;
}
.chat-pane--open { transform: translateX(0); }
body.brief-page.chat-pane-open .chat-dock { right: 420px; }
.chat-pane__header {
  padding: 18px 22px 14px;
  border-bottom: 1px solid var(--br-hair);
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: 12px;
}
.chat-pane__eyebrow {
  font-family: var(--br-num);
  font-size: 10px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--br-faint);
  margin-bottom: 4px;
}
.chat-pane__title {
  font-family: var(--font-brand);
  font-size: 17px;
  font-weight: 500;
  letter-spacing: -0.3px;
  color: var(--br-ink);
}
.chat-pane__close {
  background: none; border: none;
  color: var(--br-faint);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
}
.chat-pane__close:hover { color: var(--br-ink); background: var(--br-ghost-bg); }
.chat-pane__ctx {
  padding: 10px 22px;
  border-bottom: 1px dashed var(--br-hair);
  font-size: 12px;
  color: var(--br-ink-soft);
  font-family: var(--br-num);
  letter-spacing: 0.4px;
}
.chat-pane__log {
  flex: 1;
  overflow-y: auto;
  padding: 18px 22px;
  display: flex; flex-direction: column; gap: 14px;
}
.chat-pane__msg {
  font-size: 14px;
  line-height: 1.55;
  color: var(--br-ink);
  max-width: 92%;
}
.chat-pane__msg--user {
  align-self: flex-end;
  background: var(--br-ink);
  color: var(--br-paper);
  padding: 10px 14px;
  border-radius: 14px 14px 2px 14px;
}
.chat-pane__msg--ai {
  align-self: flex-start;
  background: var(--br-canvas);
  padding: 12px 16px;
  border-radius: 2px 14px 14px 14px;
  border: 1px solid var(--br-hair);
}
.chat-pane__msg--ai strong { color: var(--br-accent); font-weight: 600; }
.chat-pane__empty {
  color: var(--br-faint);
  font-size: 13px;
  font-style: italic;
  text-align: center;
  padding: 40px 20px;
}
.chat-pane__typing {
  display: inline-flex; gap: 3px;
  padding: 4px 0;
}
.chat-pane__typing span {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--br-faint);
  animation: chatDot 1.1s infinite ease-in-out;
}
.chat-pane__typing span:nth-child(2) { animation-delay: 0.12s; }
.chat-pane__typing span:nth-child(3) { animation-delay: 0.24s; }
@keyframes chatDot {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.9); }
  40%           { opacity: 1;   transform: scale(1.1); }
}

/* ── Responsive ──────────────────────────── */
@media (max-width: 960px) {
  .brief-shell { grid-template-columns: 1fr; }
  .brief-rail {
    position: static; height: auto;
    flex-direction: row;
    align-items: center;
    padding: 16px 20px;
    gap: 16px;
    border-right: none;
    border-bottom: 1px solid var(--br-hair);
  }
  .brief-rail__section-label,
  .brief-rail__nav,
  .brief-rail__footer { display: none; }
  .brief-main { padding: 24px 20px 80px; }
  .brief-masthead { grid-template-columns: 1fr; gap: 24px; }
  .brief-masthead__greeting { font-size: 38px; letter-spacing: -1.4px; }
  .chat-dock { left: 0; padding: 10px 12px 14px; }
  .chat-pane { width: 100%; padding-bottom: 96px; }
  body.brief-page.chat-pane-open .chat-dock { right: 0; z-index: 70; }
  .br-camp-invite { grid-template-columns: 1fr; padding: 14px 16px; }
  .br-camp-invite__cta { align-self: stretch; justify-content: center; }
  .br-ask__kbd { display: none; }
}