/* ==========================================================================
   D05 — Milestones
   Cross-division roadmap: status counts, sticky division / status filter,
   year-grouped milestone timeline with TRL and verification details,
   milestone-alert sign-up.
   Behavior: js/pages/d05-milestones.js
   ========================================================================== */

/* --------------------------------------------------------------------------
   Intro
   -------------------------------------------------------------------------- */
.ms-intro {
  position: relative;
  padding: clamp(56px, 8vw, 120px) 0 clamp(40px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
}

.ms-intro__inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr));
  gap: 32px 64px;
  align-items: end;
}

.ms-intro__title {
  margin-top: 16px;
  font-size: clamp(48px, 8vw, 128px);
  line-height: .88;
  font-weight: 750;
  font-stretch: 125%;
  letter-spacing: -.045em;
}

.ms-intro__lead {
  margin-top: 24px;
  max-width: 52ch;
  font-size: 19px;
  color: var(--text-2);
}

/* Status counts */
.ms-counts {
  grid-template-columns: repeat(3, 1fr);
}

.ms-counts__cell {
  padding: 18px;
}

.ms-counts__label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-2);
}

.ms-counts__label .status-dot {
  --dot-size: 9px;
}

.ms-counts__value {
  margin-top: 8px;
  font-size: 40px;
  font-weight: 600;
  font-stretch: 125%;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

/* --------------------------------------------------------------------------
   Filter bar — sticks below the 100px site header
   -------------------------------------------------------------------------- */
.ms-filters {
  position: sticky;
  top: 100px;
  z-index: 30;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.ms-filters__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.ms-filters__divisions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.ms-filters__division {
  height: 40px;
  padding: 0 14px;
  white-space: nowrap;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--text);
  font: 500 13px var(--font-sans);
}

.ms-filters__division[aria-pressed="true"] {
  border-color: var(--text);
  background: var(--text);
  color: var(--canvas);
}

.ms-filters__statuses {
  display: flex;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 2px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-1);
}

.ms-filters__status {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding: 0 12px;
  white-space: nowrap;
  border: 0;
  border-radius: 1px;
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: normal;
}

.ms-filters__status[aria-checked="true"] {
  background: var(--text);
  color: var(--canvas);
}

.ms-filters__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-2);
}

/* --------------------------------------------------------------------------
   Roadmap — one row per year: sticky year label + vertical timeline
   -------------------------------------------------------------------------- */
.roadmap {
  position: relative;
  padding: clamp(40px, 5vw, 72px) 0 clamp(80px, 9vw, 136px);
}

.roadmap__year {
  display: grid;
  grid-template-columns: minmax(80px, 160px) minmax(0, 1fr);
  gap: 0 clamp(16px, 3vw, 48px);
}

.roadmap__year-rail {
  padding-top: 28px;
}

.roadmap__year-label {
  position: sticky;
  top: 180px;
  font-size: clamp(32px, 4vw, 56px);
  font-weight: 700;
  font-stretch: 125%;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.roadmap__year--future .roadmap__year-label {
  color: var(--text-3);
}

/* Narrow screens: the year sits above its list so the cards get the full width */
@media (max-width: 599.98px) {
  .roadmap__year {
    grid-template-columns: minmax(0, 1fr);
  }

  .roadmap__year-rail {
    padding: 28px 0 8px;
  }

  .roadmap__year-label {
    position: static;
  }
}

/* `ol.` outweighs the base `ol[class]` padding reset */
ol.roadmap__list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 12px 0 24px 28px;
  border-left: 1px solid var(--line-strong);
}

.roadmap__empty {
  padding: 48px;
  border: 1px dashed var(--line-strong);
  text-align: center;
  color: var(--text-2);
}

.roadmap__reset {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--action-text);
  text-decoration: underline;
}

/* Milestone item */
.milestone {
  position: relative;
}

/* Timeline node, centred on the list's left border */
.milestone__node {
  --dot-size: 15px;
  position: absolute;
  left: -36px;
  top: 26px;
  box-shadow: 0 0 0 4px var(--canvas);
}

.milestone__card {
  border: 1px solid var(--line);
  background: var(--surface-1);
  outline: 1px dashed transparent;
  outline-offset: 0;
  transition: outline-offset 400ms var(--ease-inertia), outline-color 250ms;
}

.milestone__card:hover {
  outline-color: var(--info);
  outline-offset: 6px;
}

/* The whole summary row is the disclosure button. It keeps the browser's
   default button font (as the original does) for the title. */
.milestone__toggle {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: 10px 24px;
  align-items: center;
  width: 100%;
  padding: 20px 22px;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  font: 13.3333px/normal Arial, sans-serif;
}

.milestone__head {
  display: flex;
  flex-direction: column;
  gap: 4px;
  grid-column: span 2;
  min-width: 0;
}

.milestone__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
}

.milestone__title {
  font-size: 19px;
  font-weight: 600;
  line-height: 1.25;
}

.milestone__readiness {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.milestone__status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.milestone__status .status-dot {
  --dot-size: 9px;
}

.milestone__verifier {
  color: var(--text-3);
}

.milestone__trl {
  display: flex;
  align-items: center;
  gap: 8px;
}

.milestone__trl-label {
  min-width: 40px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-2);
}

.milestone__trl-meter {
  flex: 1;
  width: auto;
  max-width: 140px;
}

/* Expanded details */
.milestone__details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 12px;
  padding: 16px 22px 20px;
  border-top: 1px solid var(--line);
}

.milestone__detail {
  font-size: 14px;
  color: var(--text-2);
}

.milestone__links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.milestone__doc {
  font-size: 14px;
  color: var(--action-text);
}

.milestone__fls,
.milestone__fls:hover {
  align-self: flex-start;
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
}

/* --------------------------------------------------------------------------
   Milestone alerts
   -------------------------------------------------------------------------- */
.alerts {
  position: relative;
  padding: clamp(96px, 11vw, 168px) 0;
  border-top: 1px solid var(--line);
  background: var(--surface-1);
}

.alerts__inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 440px), 1fr));
  gap: 48px;
  align-items: end;
}

.alerts__title {
  margin-top: 14px;
  font-size: clamp(40px, 5.6vw, 88px);
  line-height: .92;
  font-weight: 700;
  font-stretch: 125%;
  letter-spacing: -.04em;
}

.alerts__lead {
  margin-top: 18px;
  max-width: 44ch;
  color: var(--text-2);
}

.alerts__form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Wrapper for the not-yet-sent state; its children lay out in the form's flex column */
.alerts__fields {
  display: contents;
}

.alerts__divisions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.alerts__legend {
  margin-bottom: 8px;
  padding: 0;
  font-size: 14px;
  font-weight: 500;
}

.alerts__check {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-1);
  cursor: pointer;
}

.alerts__check input {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: #FFB020;
}

.alerts__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
}

.alerts__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.alerts__input {
  flex: 1;
  min-width: 220px;
  height: 56px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-1);
  background: var(--canvas);
  color: var(--text);
  font: 400 16px var(--font-sans);
}

.alerts__submit {
  padding: 0 24px;
  border: 0;
}

.alerts__note {
  font-size: 13px;
  color: var(--text-3);
}

.alerts__note a,
.alerts__note a:hover {
  border-bottom: 1px solid var(--line-strong);
  color: var(--text-2);
}

.alerts__sent {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 24px;
  border: 1px solid var(--success);
}

.alerts__sent-title {
  font-size: 20px;
}

.alerts__sent-text {
  color: var(--text-2);
}

.alerts__sent-text a {
  color: var(--action-text);
}