/* ============================================================
   Feature page - shared styles used by all feature-*.html pages.
============================================================ */

/* ---------- HERO ---------- */
.fp-hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  padding: 56px 0 48px 0;
  border-bottom: 1px solid var(--acp-hairline);
  align-items: start;
}
.fp-hero > *,
.fp-two-col > *,
.fp-compare > *,
.fp-related > *,
.fp-chat-frame > * { min-width: 0; }
.fp-hero-left h1 { margin: 12px 0 16px 0; text-wrap: balance; }
.fp-eyebrow-row {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 5px 9px 5px 7px;
  border: 1px solid var(--acp-hairline-strong);
  border-radius: var(--acp-radius-xs);
  background: var(--acp-panel);
}
.fp-feature-icon {
  width: 16px; height: 16px;
  border: 1px solid rgba(0,0,0,0.2);
  border-radius: var(--acp-radius-xs);
  position: relative;
}
.fp-feature-icon::after {
  content: ""; position: absolute; inset: 4px;
  background: rgba(0,0,0,0.2); border-radius: 1px;
}
.fp-lede {
  font-size: 16px;
  line-height: 1.6;
  color: var(--acp-body);
  margin: 0;
  max-width: 600px;
}
.fp-actions {
  display: flex;
  gap: 10px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.fp-hero-spec {
  border: 1px solid var(--acp-hairline);
  background: var(--acp-panel);
  border-radius: var(--acp-radius-xs);
}
.fp-spec { padding: 12px 14px; row-gap: 6px; column-gap: 16px; }
.fp-spec dt { color: var(--acp-muted); font-size: 11.5px; }
.fp-spec dd { font: 450 11.5px/1.4 var(--acp-font-mono); color: var(--acp-ink); }

/* ---------- SECTIONS ---------- */
.fp-section {
  padding: 56px 0;
  border-bottom: 1px solid var(--acp-hairline);
}
.fp-section:last-of-type { border-bottom: none; }
.fp-section-head {
  margin-bottom: 28px;
}
.fp-section-head .t-eyebrow { margin-bottom: 12px; display: inline-block; }
.fp-section-head h2 { margin: 0 0 8px 0; }
.fp-section-head p { margin: 0; max-width: 640px; }

/* ---------- TWO-COL TEXT + VISUAL ---------- */
.fp-two-col {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 48px;
  align-items: start;
}
.fp-two-col p { margin: 0 0 16px 0; }
.fp-bullets {
  list-style: none;
  padding: 0;
  margin: 16px 0 0 0;
  display: grid;
  gap: 10px;
}
.fp-bullets li {
  position: relative;
  padding-left: 18px;
  font: 400 13.5px/1.55 var(--acp-font-ui);
  color: var(--acp-body);
}
.fp-bullet {
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--acp-primary);
  border: 1px solid var(--acp-primary-dark);
  border-radius: 1px;
}

/* ---------- STREAMING FEED ---------- */
.fp-feed-rows {
  font: 450 12px/1.5 var(--acp-font-mono);
  padding: 6px 0;
  min-height: 280px;
}
.fp-feed-row {
  display: grid;
  grid-template-columns: 74px 60px 1fr;
  gap: 12px;
  padding: 5px 16px;
  align-items: center;
  animation: fp-slide-in 240ms ease;
}
@keyframes fp-slide-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.fp-feed-row:hover { background: var(--acp-panel-raised); }
.fp-feed-time { color: var(--acp-muted); }
.fp-feed-tag {
  font: 700 9.5px/1 var(--acp-font-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  padding: 3px 5px;
  border: 1px solid var(--acp-hairline-strong);
  border-radius: var(--acp-radius-xs);
  background: var(--acp-control);
  color: var(--acp-ink);
}
.fp-feed-tag-ok { background: var(--acp-green); border-color: var(--acp-green-dark); }
.fp-feed-tag-warn { background: var(--acp-yellow); border-color: #c79b19; }
.fp-feed-tag-err { background: var(--acp-red); border-color: #b53c3c; color: var(--acp-white-soft); }
.fp-feed-tag-info { background: var(--acp-control); }
.fp-feed-body { color: var(--acp-ink); }

/* ---------- TIMELINE PANEL (run timeline) ---------- */
.fp-timeline-panel { background: var(--acp-panel); }
.fp-timeline {
  list-style: none;
  padding: 12px 0;
  margin: 0;
  position: relative;
}
.fp-timeline::before {
  content: "";
  position: absolute;
  left: 28px;
  top: 18px;
  bottom: 18px;
  width: 1px;
  background: var(--acp-grid-line);
}
.fp-tl {
  display: grid;
  grid-template-columns: 22px 60px 1fr;
  gap: 12px;
  align-items: start;
  padding: 8px 16px;
  position: relative;
}
.fp-tl-marker {
  margin-left: 6px;
  margin-top: 4px;
  width: 10px; height: 10px;
  border-radius: 999px;
  background: var(--acp-control);
  border: 1px solid var(--acp-hairline-strong);
  z-index: 1;
}
.fp-tl-verified .fp-tl-marker { background: var(--acp-green); border-color: var(--acp-green-dark); }
.fp-tl-running  .fp-tl-marker { background: var(--acp-primary); border-color: var(--acp-primary-dark); }
.fp-tl-approval .fp-tl-marker { background: var(--acp-yellow); border-color: #c79b19; }
.fp-tl-failed   .fp-tl-marker { background: var(--acp-red); border-color: #b53c3c; }
.fp-tl-time { font: 450 11px/1.4 var(--acp-font-mono); color: var(--acp-muted); margin-top: 1px; }
.fp-tl-label { font: 650 13px/1.3 var(--acp-font-ui); color: var(--acp-ink); }
.fp-tl-approval .fp-tl-label { color: var(--acp-ink); }
.fp-tl-evidence { font: 450 11.5px/1.4 var(--acp-font-mono); color: var(--acp-muted); margin-top: 2px; }

/* ---------- WITHOUT / WITH compare ---------- */
.fp-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.fp-compare-col {
  padding: 24px 24px 28px 24px;
  background: var(--acp-panel);
  border: 1px solid var(--acp-hairline);
  border-radius: var(--acp-radius-xs);
}
.fp-compare-col h3 { margin: 8px 0 16px 0; }
.fp-compare--good { border-color: var(--acp-green-dark); background: color-mix(in srgb, var(--acp-green) 8%, var(--acp-panel)); }
.fp-compare--bad { border-color: var(--acp-hairline-strong); }
.fp-x-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}
.fp-x-list li {
  font: 400 13px/1.5 var(--acp-font-ui);
  padding-left: 22px;
  position: relative;
}
.fp-compare--bad .fp-x-list li::before {
  content: "✕";
  position: absolute;
  left: 4px;
  top: 0;
  color: var(--acp-red);
  font-weight: 700;
}
.fp-compare--good .fp-x-list li::before {
  content: "✓";
  position: absolute;
  left: 4px;
  top: 0;
  color: var(--acp-green-dark);
  font-weight: 700;
}

/* ---------- RELATED CARDS ---------- */
.fp-related {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.fp-related-card {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
  padding: 16px 18px;
  text-decoration: none;
  transition: background 80ms ease;
}
.fp-related-card:hover {
  background: var(--acp-panel-raised);
  text-decoration: none;
}
.fp-related-icon {
  width: 24px; height: 24px;
  margin-top: 2px;
  border: 1px solid rgba(0,0,0,0.2);
  border-radius: var(--acp-radius-xs);
  position: relative;
}
.fp-related-icon::after {
  content: ""; position: absolute; inset: 6px;
  background: rgba(0,0,0,0.2); border-radius: 1px;
}

/* ---------- pipeline-page bits ---------- */
.fp-stages {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--acp-hairline);
  border: 1px solid var(--acp-hairline);
  border-radius: var(--acp-radius-xs);
  overflow: hidden;
}
.fp-stage {
  background: var(--acp-panel);
  padding: 18px 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}
.fp-stage-num {
  font: 450 10.5px/1 var(--acp-font-mono);
  color: var(--acp-muted);
}
.fp-stage-icon {
  width: 26px; height: 26px;
  border: 1px solid rgba(0,0,0,0.2);
  border-radius: var(--acp-radius-xs);
  position: relative;
}
.fp-stage-icon::after { content: ""; position: absolute; inset: 6px; background: rgba(0,0,0,0.18); border-radius: 1px; }
.fp-stage-name { font: 650 14px/1.2 var(--acp-font-ui); color: var(--acp-ink); }
.fp-stage-role { font: 450 11px/1.4 var(--acp-font-mono); color: var(--acp-muted); }
.fp-stage-body { font: 400 12px/1.5 var(--acp-font-ui); color: var(--acp-body); }

/* approvals-page gate display reuses landing approval-gate */

/* context-page chips */
.fp-context-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.fp-context-card {
  padding: 20px 20px 24px;
  display: flex; flex-direction: column; gap: 10px;
}
.fp-context-type {
  display: inline-flex;
  align-items: center;
  height: 22px;
  padding: 0 8px;
  font: 700 10px/1 var(--acp-font-ui);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--acp-hairline-strong);
  border-radius: var(--acp-radius-xs);
  background: var(--acp-control);
  width: max-content;
}
.fp-context-type--md  { background: var(--acp-lavender); border-color: #8c88d8; }
.fp-context-type--up  { background: var(--acp-peach);    border-color: #bf6a36; }
.fp-context-type--url { background: var(--acp-cyan);     border-color: var(--acp-cyan-dark); }
.fp-context-type--dir { background: var(--acp-yellow);   border-color: #c79b19; }

/* engines-page */
.fp-engines-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.fp-engine-card {
  padding: 22px 22px 26px;
  display: flex; flex-direction: column; gap: 12px;
  min-height: 280px;
}
.fp-engine-card--free { border-color: var(--acp-green-dark); background: color-mix(in srgb, var(--acp-green) 8%, var(--acp-panel)); }
.fp-engine-head { display: flex; align-items: center; justify-content: space-between; }

/* ============================================================
   chat-page bits
============================================================ */
.fp-chat-frame {
  border: 1px solid var(--acp-hairline);
  background: var(--acp-panel);
  border-radius: var(--acp-radius-xs);
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 540px;
  overflow: hidden;
}
.fp-chat-side {
  background: var(--acp-sidebar);
  border-right: 1px solid var(--acp-hairline);
  display: flex; flex-direction: column;
  gap: 0;
}
.fp-chat-side-head {
  padding: 12px 14px 10px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--acp-hairline);
  background: var(--acp-shell);
}
.fp-chat-side-head-title {
  font: 700 10px/1.2 var(--acp-font-ui);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--acp-muted);
}
.fp-chat-newbtn {
  font: 650 10.5px/1 var(--acp-font-ui);
  background: var(--acp-control);
  border: 1px solid var(--acp-hairline-strong);
  border-radius: var(--acp-radius-xs);
  padding: 4px 7px;
  color: var(--acp-ink);
  cursor: default;
}
.fp-chat-sessions {
  list-style: none;
  padding: 6px 0;
  margin: 0;
  flex: 1;
  overflow-y: auto;
}
.fp-chat-session {
  padding: 8px 12px;
  border-left: 2px solid transparent;
  cursor: default;
}
.fp-chat-session:hover { background: var(--acp-control-hover); }
.fp-chat-session.is-active {
  background: var(--acp-panel-raised);
  border-left-color: var(--acp-primary);
}
.fp-chat-session-title {
  font: 650 12px/1.3 var(--acp-font-ui);
  color: var(--acp-ink);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.fp-chat-session-meta {
  font: 450 10.5px/1.3 var(--acp-font-mono);
  color: var(--acp-muted);
  margin-top: 2px;
  display: flex; gap: 8px;
}

.fp-chat-main {
  display: flex;
  flex-direction: column;
  background: var(--acp-canvas);
  min-width: 0;
}
.fp-chat-topbar {
  height: 40px;
  padding: 0 16px;
  display: flex; align-items: center; gap: 10px;
  background: var(--acp-shell);
  border-bottom: 1px solid var(--acp-hairline);
}
.fp-chat-topbar-title {
  font: 650 13px/1 var(--acp-font-ui);
  color: var(--acp-ink);
}
.fp-chat-topbar-meta {
  margin-left: auto;
  display: flex; gap: 8px;
  font: 450 11px/1 var(--acp-font-mono);
  color: var(--acp-muted);
}
.fp-chat-topbar-meta .chip { font-size: 9.5px; }

.fp-chat-thread {
  flex: 1;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
  min-height: 320px;
}

.fp-msg {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 12px;
  align-items: start;
}
.fp-msg-sender {
  font: 700 10px/1.4 var(--acp-font-ui);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--acp-muted);
  padding-top: 2px;
}
.fp-msg-sender--user { color: var(--acp-ink); }
.fp-msg-sender--agent { color: var(--acp-primary-dark); }
.fp-msg-sender--tool { color: var(--acp-orange); }

.fp-msg-body {
  background: var(--acp-panel);
  border: 1px solid var(--acp-hairline);
  border-radius: var(--acp-radius-xs);
  padding: 10px 12px;
  font: 400 13px/1.55 var(--acp-font-ui);
  color: var(--acp-body);
}
.fp-msg-body p { margin: 0 0 6px 0; }
.fp-msg-body p:last-child { margin-bottom: 0; }
.fp-msg-body code {
  font: 450 11.5px/1.3 var(--acp-font-mono);
  background: var(--acp-input);
  border: 1px solid var(--acp-hairline);
  padding: 0 4px;
  border-radius: var(--acp-radius-xs);
}
.fp-msg--user .fp-msg-body {
  background: var(--acp-panel-raised);
  border-color: var(--acp-hairline-strong);
}
.fp-msg-attachments {
  margin-top: 8px;
  display: flex; flex-wrap: wrap; gap: 4px;
}
.fp-msg-tool-call {
  background: var(--acp-input);
  border: 1px solid var(--acp-hairline);
  border-radius: var(--acp-radius-xs);
  padding: 6px 10px;
  font: 450 11.5px/1.45 var(--acp-font-mono);
  color: var(--acp-body);
}
.fp-msg-tool-call .log-ok { color: var(--acp-green-dark); }

.fp-task-card {
  margin-top: 8px;
  border: 1px solid var(--acp-hairline-strong);
  background: var(--acp-panel-raised);
  border-radius: var(--acp-radius-xs);
  padding: 10px 12px 12px;
}
.fp-task-card-head {
  display: flex; align-items: center; gap: 8px;
  margin-bottom: 6px;
}
.fp-task-card-title {
  font: 650 12.5px/1.2 var(--acp-font-ui);
  color: var(--acp-ink);
  flex: 1;
}
.fp-task-card-actions {
  margin-top: 8px;
  display: flex; gap: 6px;
}

/* composer */
.fp-composer {
  border-top: 1px solid var(--acp-hairline);
  background: var(--acp-panel);
  padding: 10px 14px 12px;
}
.fp-composer-attachments {
  display: flex; gap: 6px; flex-wrap: wrap;
  margin-bottom: 8px;
}
.fp-composer-chip {
  display: inline-flex; align-items: center; gap: 6px;
  height: 22px;
  padding: 0 6px 0 4px;
  border: 1px solid var(--acp-hairline-strong);
  background: var(--acp-control);
  border-radius: var(--acp-radius-xs);
  font: 450 11px/1 var(--acp-font-mono);
  color: var(--acp-ink);
}
.fp-composer-chip-type {
  font: 700 9px/1 var(--acp-font-ui);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 4px;
  border-radius: var(--acp-radius-xs);
  background: var(--acp-lavender);
  border: 1px solid #8c88d8;
  color: var(--acp-black-soft);
}
.fp-composer-chip-type--up { background: var(--acp-peach); border-color: #bf6a36; }
.fp-composer-chip-type--url { background: var(--acp-cyan); border-color: var(--acp-cyan-dark); }
.fp-composer-chip-x { color: var(--acp-muted); font-size: 12px; line-height: 1; cursor: default; }

.fp-composer-actions {
  display: flex; gap: 6px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.fp-quick {
  display: inline-flex; align-items: center; gap: 6px;
  height: 24px;
  padding: 0 8px;
  border: 1px solid var(--acp-hairline-strong);
  background: var(--acp-control);
  border-radius: var(--acp-radius-xs);
  font: 650 11px/1 var(--acp-font-ui);
  color: var(--acp-ink);
  cursor: default;
}
.fp-quick--primary { background: var(--acp-primary); border-color: var(--acp-primary-dark); color: var(--acp-black-soft); }
.fp-quick-icon {
  width: 10px; height: 10px;
  border: 1px solid currentColor;
  display: inline-block;
  border-radius: 1px;
}

.fp-composer-input {
  border: 1px solid var(--acp-hairline-strong);
  background: var(--acp-input);
  border-radius: var(--acp-radius-xs);
  padding: 10px 12px;
  font: 400 13px/1.5 var(--acp-font-ui);
  color: var(--acp-ink);
  min-height: 56px;
  display: flex; align-items: start;
  cursor: text;
}
.fp-composer-input span { color: var(--acp-muted-soft); }

.fp-composer-foot {
  display: flex; align-items: center; gap: 8px;
  margin-top: 8px;
  font: 450 11px/1 var(--acp-font-mono);
  color: var(--acp-muted);
}
.fp-composer-foot select,
.fp-composer-foot .fp-composer-pseudo-select {
  height: 22px;
  padding: 0 8px;
  border: 1px solid var(--acp-hairline);
  background: var(--acp-panel);
  font: 450 11px/1 var(--acp-font-mono);
  color: var(--acp-ink);
  border-radius: var(--acp-radius-xs);
  display: inline-flex; align-items: center; gap: 4px;
  cursor: default;
}
.fp-composer-foot .fp-spacer { flex: 1; }

/* responsive */
@media (max-width: 900px) {
  .fp-chat-frame { grid-template-columns: 1fr; min-height: 0; }
  .fp-chat-side { display: none; }
  .fp-hero { grid-template-columns: 1fr; }
  .fp-two-col { grid-template-columns: 1fr; }
  .fp-compare { grid-template-columns: 1fr; }
  .fp-related { grid-template-columns: 1fr; }
  .fp-stages { grid-template-columns: 1fr 1fr 1fr; }
  .fp-context-grid { grid-template-columns: 1fr 1fr; }
  .fp-engines-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .fp-hero { padding: 32px 0; gap: 24px; }
  .fp-section { padding: 36px 0; }
  .fp-section-head { margin-bottom: 22px; }
  .fp-eyebrow-row { flex-wrap: wrap; align-items: flex-start; }
  .fp-lede { font-size: 15px; line-height: 1.55; }
  .fp-actions .btn { width: 100%; }
  .fp-spec { grid-template-columns: 1fr; }
  .fp-feed-row {
    grid-template-columns: 64px 1fr;
    gap: 6px 10px;
    padding: 8px 12px;
    align-items: start;
  }
  .fp-feed-body { grid-column: 1 / -1; }
  .fp-tl { grid-template-columns: 22px 1fr; gap: 4px 10px; }
  .fp-tl-time,
  .fp-tl > div { grid-column: 2; }
  .fp-compare-col { padding: 18px; }
  .fp-related-card { padding: 14px; }
  .fp-context-grid { grid-template-columns: 1fr; }
  .fp-stages { grid-template-columns: 1fr; }
  .fp-stage { padding: 16px; }
  .fp-engine-card { min-height: 0; }
  .fp-chat-topbar {
    height: auto;
    min-height: 40px;
    padding: 10px 12px;
    flex-wrap: wrap;
    align-items: flex-start;
  }
  .fp-chat-topbar-meta {
    width: 100%;
    margin-left: 0;
    flex-wrap: wrap;
  }
  .fp-chat-thread { padding: 12px; }
  .fp-msg { grid-template-columns: 1fr; gap: 4px; }
  .fp-msg-sender { padding-top: 0; }
  .fp-msg-body,
  .fp-msg-tool-call,
  .fp-task-card { min-width: 0; overflow-wrap: anywhere; }
  .fp-task-card-head,
  .fp-task-card-actions,
  .fp-composer-foot { flex-wrap: wrap; }
  .fp-composer-foot .fp-spacer { display: none; }
}