/* css/pages/engage.css — Engage page styles
   Direction B (Soft Premium), design-system/MASTER.md.
   Shared tokens/components live in styles.css (.nx-*).
   No raw hex — all colours via design-system tokens. */

/* --- page base ---------------------------------------------------------------- */
body { background: var(--nx-surface-warm); }

/* --- section label chip ------------------------------------------------------- */
.nx-eng-label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: var(--nx-text-label); font-weight: 600;
  text-transform: uppercase; letter-spacing: .08em; color: var(--nx-ink-soft);
  background: var(--nx-orange-tint); border-radius: var(--nx-r-pill); padding: 6px 14px;
  margin-bottom: var(--nx-s-4);
}
.nx-eng-label::before {
  content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--nx-orange);
}

/* --- section header ----------------------------------------------------------- */
.nx-eng-header { margin-bottom: var(--nx-s-12); }
.nx-eng-header--center { text-align: center; }
.nx-eng-header h2 {
  font-size: var(--nx-text-h2); font-weight: 800; letter-spacing: -.015em; color: var(--nx-ink);
  margin-bottom: var(--nx-s-3);
}
.nx-eng-header p { font-size: var(--nx-text-body-lg); color: var(--nx-ink-soft); max-width: 54ch; }
.nx-eng-header--center p { margin-inline: auto; }

/* --- hero --------------------------------------------------------------------- */
.nx-eng-hero {
  padding: clamp(56px, 9vw, 88px) 0 var(--nx-s-16); text-align: center;
}
.nx-eng-hero h1 {
  font-size: var(--nx-text-display); font-weight: 800; line-height: 1.08;
  letter-spacing: -.02em; color: var(--nx-ink); max-width: 22ch; margin: var(--nx-s-6) auto 0;
}
.nx-eng-hero h1 em {
  font-style: normal; color: var(--nx-ink);
  
}
.nx-eng-hero__sub {
  font-size: var(--nx-text-body-lg); color: var(--nx-ink-soft);
  max-width: 52ch; margin: var(--nx-s-6) auto var(--nx-s-8);
}
.nx-eng-hero__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* decorative chat preview — navy frame is sanctioned (MASTER.md screenshot frames) */
.nx-eng-hero__preview {
  max-width: 380px; margin: var(--nx-s-12) auto 0; background: var(--nx-navy);
  border-radius: var(--nx-r-lg); box-shadow: var(--nx-shadow-lift);
  overflow: hidden; text-align: left; pointer-events: none; user-select: none;
}
.nx-eng-preview__bar {
  padding: 14px 18px; display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.nx-eng-preview__avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--nx-orange); color: var(--nx-ink);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 13px; flex: none;
}
.nx-eng-preview__bar-name { font-size: 13px; font-weight: 600; color: rgba(255,255,255,.9); }
.nx-eng-preview__bar-tag { font-size: 11px; color: rgba(255,255,255,.45); margin-top: 1px; }
.nx-eng-preview__msgs { padding: 18px; display: flex; flex-direction: column; gap: 10px; }
.nx-eng-preview__msg {
  max-width: 82%; padding: 10px 13px;
  border-radius: 12px; font-size: 13px; line-height: 1.5; word-break: break-word;
}
.nx-eng-preview__msg--bot {
  background: rgba(255,255,255,.1); color: rgba(255,255,255,.9);
  align-self: flex-start; border-bottom-left-radius: 3px;
}
.nx-eng-preview__msg--user {
  background: var(--nx-orange); color: var(--nx-ink); font-weight: 500;
  align-self: flex-end; border-bottom-right-radius: 3px;
}
.nx-eng-preview__input-bar {
  margin: 4px 14px 14px; display: flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.07); border-radius: var(--nx-r-pill);
  padding: 9px 14px; border: 1px solid rgba(255,255,255,.1);
}
.nx-eng-preview__input-bar span { color: rgba(255,255,255,.35); font-size: 12px; flex: 1; }
.nx-eng-preview__send {
  width: 26px; height: 26px; border-radius: 50%; background: var(--nx-orange);
  display: flex; align-items: center; justify-content: center; flex: none;
}
.nx-eng-preview__send svg { width: 13px; height: 13px; fill: var(--nx-ink); }

/* --- how it works ------------------------------------------------------------ */
.nx-eng-steps { background: var(--nx-surface); }
.nx-eng-steps__grid { display: grid; gap: 20px; }
@media (min-width: 768px) { .nx-eng-steps__grid { grid-template-columns: repeat(3, 1fr); } }
.nx-eng-step {
  background: var(--nx-surface-warm); border: 1px solid var(--nx-line);
  border-radius: var(--nx-r-lg); padding: var(--nx-s-8);
  transition: transform var(--nx-t-base) var(--nx-ease-out), box-shadow var(--nx-t-base) var(--nx-ease-out);
}
.nx-eng-step:hover { transform: translateY(-4px); box-shadow: var(--nx-shadow-lift); }
.nx-eng-step__num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--nx-orange); color: var(--nx-ink); font-weight: 800; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; font-variant-numeric: tabular-nums;
}
.nx-eng-step h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--nx-ink); }
.nx-eng-step p { font-size: 15px; color: var(--nx-ink-soft); line-height: 1.6; }

/* --- channel cards ----------------------------------------------------------- */
.nx-eng-channels__grid { display: grid; gap: 16px; }
@media (min-width: 600px) { .nx-eng-channels__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .nx-eng-channels__grid { grid-template-columns: repeat(3, 1fr); } }
.nx-eng-channel {
  background: var(--nx-surface); border: 1.5px solid var(--nx-line);
  border-radius: var(--nx-r-lg); padding: var(--nx-s-8);
  display: flex; flex-direction: column; gap: var(--nx-s-3);
  transition: transform var(--nx-t-base) var(--nx-ease-out), box-shadow var(--nx-t-base) var(--nx-ease-out);
}
.nx-eng-channel:hover { transform: translateY(-3px); box-shadow: var(--nx-shadow-soft); }
.nx-eng-channel--live {
  border-color: var(--nx-orange-tint); box-shadow: var(--nx-shadow-soft);
}
.nx-eng-channel__top { display: flex; align-items: flex-start; justify-content: space-between; gap: 8px; margin-bottom: var(--nx-s-2); }
.nx-eng-channel__icon {
  width: 48px; height: 48px; border-radius: 14px; background: var(--nx-orange-tint);
  display: flex; align-items: center; justify-content: center; flex: none;
}
.nx-eng-channel__icon svg {
  width: 24px; height: 24px; stroke: var(--nx-orange-dark);
  stroke-width: 1.75; fill: none; stroke-linecap: round; stroke-linejoin: round;
}
.nx-eng-channel h3 { font-size: 17px; font-weight: 700; color: var(--nx-ink); margin-bottom: 6px; }
.nx-eng-channel p { font-size: 14.5px; color: var(--nx-ink-soft); line-height: 1.55; flex: 1; }
.nx-eng-badge {
  display: inline-flex; align-items: center; gap: 5px; flex: none;
  font-size: 11.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em;
  border-radius: var(--nx-r-pill); padding: 4px 11px; white-space: nowrap; align-self: flex-start;
}
.nx-eng-badge--live { background: var(--nx-orange-tint); color: var(--nx-orange-dark); }
.nx-eng-badge--live::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--nx-orange-dark); }
.nx-eng-badge--request { background: var(--nx-surface-warm); color: var(--nx-ink-soft); border: 1px solid var(--nx-line); }

/* --- tier table -------------------------------------------------------------- */
.nx-eng-tiers { background: var(--nx-surface); }
.nx-eng-tiers__grid {
  display: grid; gap: 20px; margin-top: var(--nx-s-12); align-items: start;
}
@media (min-width: 768px) { .nx-eng-tiers__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .nx-eng-tiers__grid { grid-template-columns: repeat(4, 1fr); } }
.nx-eng-tier {
  background: var(--nx-surface); border: 1.5px solid var(--nx-line);
  border-radius: var(--nx-r-lg); padding: var(--nx-s-8);
  display: flex; flex-direction: column; gap: var(--nx-s-3); position: relative;
  transition: transform var(--nx-t-base) var(--nx-ease-out), box-shadow var(--nx-t-base) var(--nx-ease-out);
}
.nx-eng-tier:hover { transform: translateY(-4px); box-shadow: var(--nx-shadow-lift); }
.nx-eng-tier--featured {
  border-color: var(--nx-orange);
  box-shadow: 0 0 0 1px var(--nx-orange), var(--nx-shadow-lift);
  padding-top: calc(var(--nx-s-8) + 12px);
}
.nx-eng-tier--featured:hover { transform: translateY(-6px); }
.nx-eng-tier__badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--nx-orange); color: var(--nx-ink);
  font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .08em;
  border-radius: var(--nx-r-pill); padding: 5px 16px; white-space: nowrap;
}
.nx-eng-tier__name { font-size: 18px; font-weight: 700; color: var(--nx-ink); }
.nx-eng-tier__price {
  font-size: clamp(32px, 4vw, 40px); font-weight: 800; color: var(--nx-ink);
  letter-spacing: -.02em; font-variant-numeric: tabular-nums; line-height: 1.1;
  margin: var(--nx-s-2) 0 var(--nx-s-1);
}
.nx-eng-tier__price small { font-size: 15px; font-weight: 500; color: var(--nx-ink-soft); }
.nx-eng-tier__setup { font-size: 13px; color: var(--nx-ink-soft); }
.nx-eng-tier--enterprise .nx-eng-tier__price { font-size: clamp(26px, 3vw, 34px); }
.nx-eng-tier__volume {
  display: inline-block; font-size: 12.5px; font-weight: 600;
  color: var(--nx-orange-dark); background: var(--nx-orange-tint);
  border-radius: var(--nx-r-pill); padding: 4px 12px; margin-top: var(--nx-s-1);
}
.nx-eng-tier__divider { height: 1px; background: var(--nx-line); margin: var(--nx-s-4) 0; }
.nx-eng-tier__features {
  list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; flex: 1;
}
.nx-eng-tier__features li {
  display: flex; gap: 9px; align-items: flex-start;
  font-size: 14px; color: var(--nx-ink-soft); line-height: 1.45;
}
.nx-eng-tier__features li svg {
  width: 15px; height: 15px; flex: none; margin-top: 2px;
  stroke: var(--nx-orange-dark); stroke-width: 2.5; fill: none;
  stroke-linecap: round; stroke-linejoin: round;
}
.nx-eng-tier__cta { width: 100%; justify-content: center; margin-top: auto; }

/* tier footer notes */
.nx-eng-tiers__footer {
  margin-top: var(--nx-s-8); text-align: center;
  display: flex; flex-direction: column; gap: var(--nx-s-3); align-items: center;
}
.nx-eng-tiers__footer p { font-size: 14px; color: var(--nx-ink-soft); max-width: 50ch; }
.nx-eng-tiers__footer strong { color: var(--nx-ink); font-weight: 600; }
.nx-eng-tiers__footer a { color: var(--nx-orange-dark); text-decoration: underline; text-underline-offset: 3px; }

@media (min-width: 1024px) { .nx-eng-hero h1 { max-width: none; white-space: nowrap; font-size: clamp(1.9rem, 3vw, 2.7rem); } }