/* Help pages: vertical timeline. Left column = what the user does and sees, right column = what the system and the people doing the work do.
   --accent is set per page (blue for 3D print, green for firmware). */
.help { --accent: var(--primary); --c-admin: #f97316; --c-printer: #10b981; --c-dev: #8b5cf6; --c-sys: #a3a3a3; padding: 12px 28px 48px; max-width: 1040px; width: 100%; margin: 0 auto; }
.help .tl-head { display: grid; grid-template-columns: 1fr 56px 1fr; margin: 0 0 22px; }
.help .tl-head div { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; padding: 0 4px; }
.help .tl-head .l { grid-column: 1; color: var(--accent); }
.help .tl-head .r { grid-column: 3; color: var(--text); }

.tl { list-style: none; margin: 0; padding: 0; position: relative; }
.tl::before { content: ""; position: absolute; left: 50%; top: 6px; bottom: 6px; width: 2px; margin-left: -1px; background: var(--nested); border-radius: 1px; }
.tl .step { display: grid; grid-template-columns: 1fr 56px 1fr; align-items: start; margin: 0 0 16px; position: relative; }
.tl .node { grid-column: 2; grid-row: 1; justify-self: center; z-index: 1; margin-top: 11px; width: 28px; height: 28px; border-radius: 50%;
  background: var(--panel); border: 2px solid var(--accent); color: var(--accent); font-size: 12px; font-weight: 700; display: grid; place-items: center; }
.tl .side { min-width: 0; display: flex; flex-direction: column; gap: 10px; grid-row: 1; }
.tl .side.l { grid-column: 1; }
.tl .side.r { grid-column: 3; }

.ev { position: relative; background: var(--card); border-radius: 14px; padding: 13px 16px 14px; border-left: 3px solid var(--k, var(--nested)); }
.ev .who { display: block; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--k, var(--text)); margin-bottom: 3px; }
.ev h3 { margin: 0 0 4px; font-size: 15px; line-height: 21px; color: var(--text-strong); }
.ev p { margin: 0; color: var(--text); }
.ev p + p { margin-top: 6px; }
.ev .ui { background: var(--nested); color: var(--text-strong); border-radius: 6px; padding: 0 6px; font-weight: 600; white-space: nowrap; }
.ev.u { --k: var(--accent); }
.ev.f { --k: var(--accent); background: transparent; border: 1px dashed var(--nested); border-left: 3px solid var(--accent); }
.ev.s { --k: var(--c-sys); }
.ev.admin { --k: var(--c-admin); }
.ev.printer { --k: var(--c-printer); }
.ev.dev { --k: var(--c-dev); }
/* connectors from a card to the node on the spine (card edge to node edge = 14 px) */
.side.l .ev::after, .side.r .ev::before { content: ""; position: absolute; top: 24px; width: 14px; height: 2px; background: var(--nested); }
.side.l .ev::after { right: -14px; }
.side.r .ev::before { left: -17px; }

.help-foot { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }
.help-foot .btn { display: inline-grid; place-items: center; }

@media (max-width: 760px) {
  .help { padding-left: 16px; padding-right: 16px; }
  .help .tl-head { display: none; }
  .tl::before { left: 14px; margin-left: -1px; }
  .tl .step { grid-template-columns: 30px 1fr; }
  .tl .node { grid-column: 1; justify-self: start; margin-left: 0; width: 28px; height: 28px; }
  .tl .side.l, .tl .side.r { grid-column: 2; grid-row: auto; margin-left: 8px; }
  .tl .side.r { margin-top: 10px; }
  .tl .side:empty { display: none; }
  .tl .side.l .ev::after, .tl .side.r .ev::before { display: none; }
}