/* platform.css — Unibuild Platform Overview page.
   Inherits palette and primitives from styles.css.
   Adds section types specific to this page only.
*/

/* ── HERO ──────────────────────────────────────────────────────────────── */
.pf-hero {
  position: relative;
  border-bottom: 1px solid var(--rule);
  padding: 56px 0 72px;
  overflow: hidden;
}
.pf-hero::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 6px;
  background: var(--hazard);
}
.pf-hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 64px;
  align-items: end;
}
.pf-hero h1 {
  font-family: var(--f-display);
  font-size: clamp(48px, 6vw, 92px);
  line-height: 0.94;
  letter-spacing: -0.04em;
  font-weight: 500;
  margin: 24px 0 0;
  text-wrap: balance;
}
.pf-hero h1 em {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 400;
}
.pf-hero .sub {
  margin-top: 28px;
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 56ch;
  text-wrap: pretty;
}
.pf-hero .meta {
  margin-top: 28px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}
.pf-hero .meta b { color: var(--ink); font-weight: 500; }

/* Hero stat tower (right) */
.pf-tower {
  border: 1px solid var(--rule);
  background: var(--paper);
}
.pf-tower-hd {
  padding: 14px 20px;
  border-bottom: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  font-family: var(--f-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-mute);
}
.pf-tower-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  padding: 18px 20px;
  border-bottom: 1px solid var(--rule-soft);
  gap: 16px;
}
.pf-tower-row:last-child { border-bottom: 0; }
.pf-tower-row .k {
  font-family: var(--f-mono);
  font-size: 11.5px;
  color: var(--ink-2);
  letter-spacing: 0.04em;
}
.pf-tower-row .v {
  font-family: var(--f-display);
  font-size: 26px;
  letter-spacing: -0.025em;
  font-weight: 500;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.pf-tower-row .v small {
  font-family: var(--f-mono);
  font-size: 10.5px;
  color: var(--ink-mute);
  font-weight: 400;
  letter-spacing: 0.04em;
  margin-left: 6px;
  text-transform: uppercase;
}

/* ── ANATOMY DIAGRAM ───────────────────────────────────────────────────── */
.pf-anatomy {
  background: var(--ink);
  color: var(--paper);
  padding: 84px 0 96px;
  position: relative;
}
.pf-anatomy .num,
.pf-anatomy .num span { color: oklch(0.7 0.005 60); border-color: var(--paper); }
.pf-anatomy .sec-hd h2 { color: var(--paper); }
.pf-anatomy .sec-hd h2 em { color: var(--hazard); }
.pf-anatomy .sec-hd .lede { color: oklch(0.78 0.005 60); }

.pf-stack {
  margin-top: 56px;
  display: grid;
  gap: 0;
  border-top: 1px solid oklch(0.32 0.01 60);
  border-left: 1px solid oklch(0.32 0.01 60);
}
.pf-layer {
  border-right: 1px solid oklch(0.32 0.01 60);
  border-bottom: 1px solid oklch(0.32 0.01 60);
  padding: 28px 32px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
  align-items: center;
}
.pf-layer-hd {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.pf-layer-hd .num {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: oklch(0.62 0.005 60);
}
.pf-layer-hd h3 {
  font-family: var(--f-display);
  font-size: 30px;
  letter-spacing: -0.03em;
  font-weight: 500;
  margin: 0;
}
.pf-layer-hd h3 em {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--hazard);
}
.pf-layer-cells {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-left: 1px solid oklch(0.32 0.01 60);
}
.pf-cell {
  padding: 14px 18px;
  border-right: 1px solid oklch(0.32 0.01 60);
  border-top: 1px solid oklch(0.32 0.01 60);
  border-bottom: 1px solid oklch(0.32 0.01 60);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: oklch(0.85 0.005 60);
  display: flex;
  align-items: center;
  gap: 10px;
}
.pf-cell .dot {
  width: 6px; height: 6px;
  background: var(--hazard);
  border-radius: 50%;
  flex-shrink: 0;
}
.pf-spine-tag {
  margin-top: 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: oklch(0.78 0.005 60);
  padding-top: 18px;
  border-top: 1px solid oklch(0.32 0.01 60);
}
.pf-spine-tag b { color: var(--hazard); font-weight: 500; }

/* ── MODULES GRID ──────────────────────────────────────────────────────── */
.pf-modules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 56px;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.pf-mod {
  padding: 32px 28px 36px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: background 0.18s;
}
.pf-mod:hover { background: var(--paper-2); }
.pf-mod-hd {
  display: grid;
  grid-template-columns: 36px 1fr auto;
  gap: 12px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule-soft);
  margin-bottom: 16px;
}
.pf-mod-num {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
  border-top: 1px solid var(--ink);
  padding-top: 6px;
  width: 28px;
}
.pf-mod-hd h3 {
  font-family: var(--f-display);
  font-size: 22px;
  letter-spacing: -0.02em;
  font-weight: 500;
  line-height: 1.1;
  margin: 0;
}
.pf-mod-tag {
  font-family: var(--f-mono);
  font-size: 10px;
  color: var(--hazard-ink);
  background: var(--hazard);
  padding: 2px 8px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.pf-mod p {
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0 0 18px;
  flex: 1;
}
.pf-mod ul {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  display: grid;
  gap: 6px;
  font-family: var(--f-mono);
  font-size: 11.5px;
  color: var(--ink-2);
}
.pf-mod ul li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  gap: 10px;
  align-items: baseline;
}
.pf-mod ul li::before {
  content: "→";
  flex-shrink: 0;
  width: 14px;
  color: var(--ink-mute);
  font-family: var(--f-mono);
}
.pf-mod-foot {
  padding-top: 14px;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
  display: flex;
  justify-content: space-between;
}
.pf-mod-foot b { color: var(--ink); font-weight: 500; }

/* ── ROLES ─────────────────────────────────────────────────────────────── */
.pf-roles {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 0;
  border: 1px solid var(--rule);
}
.pf-roles-tabs {
  border-right: 1px solid var(--rule);
  background: var(--paper-2);
  display: flex;
  flex-direction: column;
}
.pf-roles-tabs button {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--rule-soft);
  text-align: left;
  padding: 18px 22px;
  cursor: pointer;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 10px;
  align-items: baseline;
  font-family: var(--f-display);
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: -0.01em;
  transition: background 0.15s, color 0.15s;
}
.pf-roles-tabs button:last-child { border-bottom: 0; }
.pf-roles-tabs button:hover { background: oklch(0.96 0.008 60); color: var(--ink); }
.pf-roles-tabs button.active {
  background: var(--paper);
  color: var(--ink);
  position: relative;
}
.pf-roles-tabs button.active::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--hazard);
}
.pf-roles-tabs button .num {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
}
.pf-roles-panel {
  padding: 36px 40px 40px;
  background: var(--paper);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.pf-roles-panel .who {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-mute);
  text-transform: uppercase;
}
.pf-roles-panel h3 {
  font-family: var(--f-display);
  font-size: 32px;
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 500;
  margin: 12px 0 16px;
  text-wrap: balance;
}
.pf-roles-panel h3 em {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 400;
}
.pf-roles-panel p {
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-2);
  margin: 0 0 18px;
}
.pf-roles-panel .pf-roles-uses {
  font-family: var(--f-mono);
  font-size: 11.5px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
  padding-top: 14px;
  border-top: 1px solid var(--rule-soft);
}
.pf-roles-panel .pf-roles-uses span {
  display: inline-block;
  padding: 3px 8px;
  border: 1px solid var(--rule);
  margin: 4px 6px 0 0;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.pf-roles-mock {
  background: var(--ink);
  color: var(--paper);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-family: var(--f-mono);
  font-size: 12px;
  min-height: 320px;
}
.pf-roles-mock-hd {
  display: flex;
  justify-content: space-between;
  padding-bottom: 10px;
  border-bottom: 1px solid oklch(0.32 0.01 60);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: oklch(0.7 0.005 60);
}
.pf-roles-mock-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 14px;
  padding: 6px 0;
  border-bottom: 1px solid oklch(0.22 0.01 60);
  color: oklch(0.85 0.005 60);
}
.pf-roles-mock-row:last-of-type { border-bottom: 0; }
.pf-roles-mock-row b { color: var(--paper); font-weight: 500; }
.pf-roles-mock-row .tag {
  background: var(--hazard);
  color: var(--hazard-ink);
  padding: 1px 7px;
  font-size: 10.5px;
  letter-spacing: 0.04em;
}
.pf-roles-mock-row .ok { color: var(--good); }
.pf-roles-mock-row .warn { color: var(--hazard); }

/* ── A DAY ON UNIBUILD ─────────────────────────────────────────────────── */
.pf-day {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 0;
  border-top: 1px solid var(--rule);
}
.pf-day-row {
  display: contents;
}
.pf-day-time {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--ink-mute);
  padding: 22px 24px 22px 0;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  text-align: right;
  position: relative;
}
.pf-day-time b { color: var(--ink); font-family: var(--f-display); font-size: 18px; font-weight: 500; letter-spacing: -0.01em; display: block; }
.pf-day-event {
  padding: 22px 28px;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.pf-day-event::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 28px;
  width: 9px;
  height: 9px;
  background: var(--paper);
  border: 2px solid var(--ink);
  border-radius: 50%;
  transform: translateX(-50%);
}
.pf-day-event.is-hazard::before { background: var(--hazard); border-color: var(--hazard); }
.pf-day-event h4 {
  font-family: var(--f-display);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin: 0 0 8px;
  color: var(--ink);
}
.pf-day-event p {
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0 0 10px;
  max-width: 70ch;
}
.pf-day-event .who {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
}
.pf-day-event .who b { color: var(--ink); font-weight: 500; }

/* ── INTEGRATIONS ──────────────────────────────────────────────────────── */
.pf-int-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 0;
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.pf-int-row {
  display: contents;
}
.pf-int-cat {
  padding: 24px 24px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper-2);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.pf-int-cat .num {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
}
.pf-int-cat h4 {
  font-family: var(--f-display);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0;
}
.pf-int-list {
  padding: 18px 20px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: flex-start;
  align-content: flex-start;
}
.pf-int-list span {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--ink);
  border: 1px solid var(--rule);
  padding: 5px 10px;
  background: var(--paper);
}

/* ── BUILD STACK / WHAT IT IS ─────────────────────────────────────────── */
.pf-stack-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.pf-stack-cell {
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 28px 22px 30px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--paper);
}
.pf-stack-cell .num {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
  border-top: 1px solid var(--ink);
  padding-top: 6px;
  width: 32px;
}
.pf-stack-cell h4 {
  font-family: var(--f-display);
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.015em;
  margin: 6px 0 0;
}
.pf-stack-cell p {
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0;
}
.pf-stack-cell .v {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink);
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--rule-soft);
  letter-spacing: 0.04em;
}

/* ── ROLLOUT TIMELINE ──────────────────────────────────────────────────── */
.pf-rollout {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule);
  position: relative;
}
.pf-rollout::after {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--hazard);
}
.pf-week {
  padding: 32px 24px 36px;
  border-right: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
}
.pf-week:last-child { border-right: 0; }
.pf-week .wk {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}
.pf-week h4 {
  font-family: var(--f-display);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 14px;
  text-wrap: balance;
}
.pf-week h4 em {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 400;
}
.pf-week ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--ink-2);
}
.pf-week ul li {
  display: grid;
  grid-template-columns: 14px 1fr;
  gap: 10px;
}
.pf-week ul li::before {
  content: "✓";
  color: var(--good);
}
.pf-week-foot {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.04em;
}

/* ── RESPONSIVE ────────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .pf-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .pf-modules { grid-template-columns: repeat(2, 1fr); }
  .pf-stack-grid { grid-template-columns: repeat(2, 1fr); }
  .pf-rollout { grid-template-columns: repeat(2, 1fr); }
  .pf-week:nth-child(2) { border-right: 0; }
  .pf-week:nth-child(1), .pf-week:nth-child(2) { border-bottom: 1px solid var(--rule); }
  .pf-week { border-right: 1px solid var(--rule); }
  .pf-roles { grid-template-columns: 1fr; }
  .pf-roles-tabs { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--rule); }
  .pf-roles-tabs button { border-bottom: 0; border-right: 1px solid var(--rule-soft); flex-shrink: 0; }
  .pf-roles-panel { grid-template-columns: 1fr; padding: 28px; }
  .pf-layer { grid-template-columns: 1fr; gap: 16px; }
  .pf-layer-cells { grid-template-columns: repeat(2, 1fr); border-left: 0; }
}
@media (max-width: 720px) {
  .pf-modules, .pf-stack-grid, .pf-rollout { grid-template-columns: 1fr; }
  .pf-int-grid { grid-template-columns: 1fr; }
  .pf-day { grid-template-columns: 1fr; }
  .pf-day-time { text-align: left; padding: 14px 0 6px; border-right: 0; border-bottom: 0; }
  .pf-day-event { padding: 0 0 22px; }
  .pf-day-event::before { display: none; }
  .pf-layer-cells { grid-template-columns: 1fr; }
}