/* Screen layouts. SH01 has the page header, the placeholder and the not-found view; later tasks add the screens. */

.page {
  display: flex;
  flex-direction: column;
  gap: 24px;
  animation: rise-in var(--duration-base) var(--ease-out) backwards;
}
.is-redraw > .page { animation: none; }
.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}
.page-header h1 {
  color: var(--fg);
}
.page-header h1:focus {
  outline: none;
}
.page-header p {
  margin-top: 4px;
}
.placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 48px 24px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-card);
  background: var(--surface);
  text-align: center;
}
.placeholder svg.icon {
  width: 24px;
  height: 24px;
  color: var(--muted);
}
.placeholder .btn {
  margin-top: 8px;
}

/* Overview (#/) */
.ov { gap: 40px; }
.ov-section { display: flex; flex-direction: column; gap: 16px; }
.ov-section-head { display: flex; flex-direction: column; gap: 4px; max-width: 720px; }
.ov-hero { display: flex; flex-direction: column; gap: 12px; }
.ov-hero h1:focus { outline: none; }
.ov-hero-meta { display: flex; flex-wrap: wrap; align-self: flex-start; align-items: center; gap: 8px; padding-right: 20px; }
.ov-pitch { max-width: 760px; color: var(--fg); font-weight: 400; }
.ov-hero .text-muted { max-width: 760px; }
.ov-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.ov-answer { max-width: 760px; }
.ov-grid { display: grid; gap: var(--gutter); }
.ov-grid > .card { display: flex; flex-direction: column; gap: 8px; }
@media (min-width: 768px) {
  .ov-grid-2, .ov-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ov-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.ov-grid-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (min-width: 1280px) {
  .ov-grid-4, .ov-grid-stats { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* Data-flow diagram: a 5-column snake from 768 px, 2 columns on phones. */
.flow-wide { display: none; }
.flow-narrow { display: block; }
@media (min-width: 768px) {
  .flow-wide { display: block; }
  .flow-narrow { display: none; }
}
.flow-svg { display: block; width: 100%; height: auto; margin-bottom: 12px; }
.flow-node rect { fill: var(--raised); stroke: var(--line); stroke-width: 1; }
.flow-title { fill: var(--fg); font-family: var(--font-sans); font-size: 13px; font-weight: 500; }
.flow-step { fill: var(--muted); font-family: var(--font-mono); font-size: 12px; }
.flow-note { fill: var(--muted); font-family: var(--font-mono); font-size: 11px; }
.flow-edge { stroke: var(--line-strong); stroke-width: 1.5; }
.flow-head { fill: var(--line-strong); }

.ov-rules { display: flex; flex-direction: column; gap: 6px; margin: 4px 0; }
.ov-rules li { display: flex; align-items: flex-start; gap: 8px; }
.ov-rules svg.icon { margin-top: 1px; color: var(--muted); }
.ov-stack-list { display: flex; flex-wrap: wrap; gap: 6px; }
.ov-tile-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
/* The calendar tile spans the gallery; on phones its week list would be very long, so the tile is left out there. */
.ov-grid > .ov-tile-wide { display: none; }
@media (min-width: 768px) {
  .ov-grid > .ov-tile-wide { display: flex; grid-column: 1 / -1; }
}
.ov-shot { overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-control); }
.ov-shot svg { display: block; width: 100%; height: auto; }
.ov-roadmap { display: grid; gap: 12px; }
@media (min-width: 768px) {
  .ov-roadmap { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* #/kit gallery (hidden route, removed in SH13) */
.kit-row { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 12px; }
.kit-stack { display: flex; flex-direction: column; gap: 16px; }
.kit-stack-tight { display: inline-flex; flex-direction: column; gap: 8px; }
.kit-narrow { width: 100%; max-width: 480px; }
.kit-narrow.kit-stack-tight { display: flex; }
.kit-grid { display: grid; width: 100%; gap: 16px; }
.kit-token { display: inline-flex; align-items: center; gap: 8px; }
.kit-card-row { display: flex; align-items: center; justify-content: space-between; }
.kit-strip { display: flex; }
@media (min-width: 768px) {
  .kit-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 1280px) {
  .kit-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kit-grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}