/* ============================================================
   AI4S-Benchmark · Components
   ============================================================ */

/* Account check: one small dialog, using the site's existing type and actions. */
.account-check {
  width: min(100% - 2rem, 30rem);
  max-height: min(90vh, 42rem);
  padding: 0;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 18px 60px rgba(13, 23, 48, 0.25);
}
.account-check::backdrop { background: rgba(13, 23, 48, 0.58); }
.account-check__panel { padding: var(--space-6); }
.account-check__eyebrow {
  margin-bottom: var(--space-3);
  color: var(--electric-blue);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
}
.account-check__title { margin-bottom: var(--space-3); font-size: var(--text-xl); }
.account-check__intro, .account-check__current {
  color: var(--ink-secondary);
  font-size: var(--text-sm);
}
.account-check__form { display: grid; gap: var(--space-2); }
.account-check__label { font-size: var(--text-sm); font-weight: 600; }
.account-check__input {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
}
.account-check__input:focus-visible { outline: 2px solid var(--electric-blue); outline-offset: 2px; }
.account-check__current { margin: 0 0 var(--space-3); }
.account-check__resend {
  justify-self: start;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--electric-blue);
  font: inherit;
  font-size: var(--text-sm);
  cursor: pointer;
}
.account-check__resend:hover { text-decoration: underline; }
.account-check__resend:focus-visible { outline: 2px solid var(--electric-blue); outline-offset: 3px; }
.account-check__status { min-height: 1.3em; margin: 0; font-size: var(--text-sm); color: var(--ink-secondary); }
.account-check__actions { display: flex; justify-content: flex-end; gap: var(--space-2); margin-top: var(--space-4); }

/* ---------------- Header ---------------- */
/* One dark glass bar on every page: it sits on the front page's navy opening
   and on the dark page heads without a seam, and stays put over light content. */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  /* Solid navy at rest: a translucent bar over the off-white page reads as
     grey. It only turns to glass once content is scrolling underneath it. */
  background: var(--navy);
  backdrop-filter: blur(18px) saturate(1.6);
  -webkit-backdrop-filter: blur(18px) saturate(1.6);
  border-bottom: 1px solid rgba(247, 249, 252, 0.08);
  color: #E6EBF5;
  transition: background var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
}
.site-header.is-scrolled {
  background: rgba(13, 23, 48, 0.9);
  box-shadow: 0 8px 24px -16px rgba(13, 23, 48, 0.5);
}
.site-header .brand__name { color: #fff; }
.site-header .brand__sub { color: #A6B0C3; }

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--navy);
  flex-shrink: 0;
}
.brand:hover { text-decoration: none; }
.brand__mark { width: 2.15rem; height: 2.15rem; display: block; }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__name {
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.02em;
  color: var(--navy);
}
.brand__sub {
  font-size: 0.56rem;
  font-weight: 600;
  letter-spacing: 0.34em;
  color: var(--ink-secondary);
  margin-top: 0.28rem;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}

.site-nav__link {
  color: rgba(230, 235, 245, 0.78);
  font-weight: 500;
  font-size: var(--text-sm);
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-full);
  transition: color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.site-nav__link:hover {
  color: #fff;
  background: rgba(247, 249, 252, 0.08);
  text-decoration: none;
}
.site-nav__link[aria-current="page"] {
  color: #fff;
  font-weight: 600;
  background: rgba(247, 249, 252, 0.12);
}

.site-nav__github {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.site-nav__github svg { width: 1rem; height: 1rem; }
.site-nav__account { position: relative; flex: 0 0 4rem; width: 4rem; }
.site-nav__account-toggle {
  display: flex; align-items: center; justify-content: flex-end;
  width: 100%; height: 2.5rem; padding: 0;
  color: rgba(230, 235, 245, 0.85); background: transparent;
  border: 0; border-radius: var(--radius-sm);
  font: inherit; font-size: var(--text-sm); font-weight: 500; cursor: pointer;
}
.site-nav__account-toggle:hover, .site-nav__account-toggle[aria-expanded="true"] {
  color: #fff;
}
.site-nav__account-toggle:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
.site-nav__account-toggle:disabled { cursor: default; opacity: 0.7; }
.site-nav__account-loading { width: 2rem; height: 2rem; border-radius: 50%; background: rgba(247, 249, 252, 0.09); }
.site-nav__avatar {
  position: relative; display: grid; place-items: center; overflow: hidden;
  width: 2.125rem; height: 2.125rem; border-radius: 50%;
  color: var(--navy); background: #dce8ff; font-size: var(--text-sm);
}
.site-nav__avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.site-nav__account-toggle:hover .site-nav__avatar,
.site-nav__account-toggle[aria-expanded="true"] .site-nav__avatar { box-shadow: 0 0 0 2px var(--navy), 0 0 0 3px rgba(230, 235, 245, 0.55); }
.site-nav__account-menu {
  position: absolute; z-index: 30; top: calc(100% + 0.8rem); right: 0;
  width: min(15rem, calc(100vw - 2 * var(--gutter))); padding: 0.4rem; color: var(--ink);
  background: var(--surface); border: 1px solid var(--border-faint); border-radius: var(--radius-lg);
  box-shadow: 0 12px 36px rgba(13, 23, 48, 0.18);
}
.site-nav__account-menu[hidden] { display: none; }
.site-nav__account-identity { display: grid; gap: 0.35rem; padding: 0.7rem 0.75rem 0.85rem; margin-bottom: 0.3rem; border-bottom: 1px solid var(--border-faint); overflow-wrap: anywhere; }
.site-nav__account-caption { color: var(--ink-muted); font-size: var(--text-xs); }
.site-nav__account-identity strong { font-size: var(--text-base); font-weight: 600; }
.site-nav__reviewer-badge { width: fit-content; padding: 0.15rem 0.5rem; border-radius: var(--radius-full); color: var(--navy); background: #e7efff; font-size: var(--text-xs); font-weight: 700; }
.site-nav__account-menu a, .site-nav__account-menu button {
  display: block; width: 100%; padding: 0.62rem 0.75rem; border: 0; border-radius: var(--radius-sm);
  background: none; color: var(--ink); font: inherit; font-size: var(--text-sm);
  text-align: left; text-decoration: none; cursor: pointer;
}
.site-nav__account-menu a:hover, .site-nav__account-menu button:hover { background: #eef3fb; }
.site-nav__account-menu .site-nav__signout { margin-top: 0.3rem; border-top: 1px solid var(--border-faint); border-radius: 0 0 var(--radius-md) var(--radius-md); color: var(--ink-secondary); }
/* The sign-in control reads as a quiet glass pill on the dark bar */
.site-nav .btn--secondary {
  background: rgba(247, 249, 252, 0.06);
  color: #fff;
  border-color: rgba(247, 249, 252, 0.28);
}
.site-nav .btn--secondary:hover { background: rgba(247, 249, 252, 0.12); border-color: rgba(247, 249, 252, 0.55); color: #fff; }

.site-nav .btn { margin-left: var(--space-2); }

/* Mobile nav */
.nav-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: 1px solid rgba(247, 249, 252, 0.28);
  border-radius: var(--radius-full);
  padding: 0.5rem 0.6rem;
  color: #fff;
  line-height: 0;
}
.nav-toggle svg { width: 1.25rem; height: 1.25rem; }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: fixed;
    inset: var(--header-height) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    background: rgba(13, 23, 48, 0.96);
    border-bottom: 1px solid rgba(247, 249, 252, 0.1);
    box-shadow: var(--shadow-md);
    padding: var(--space-4) var(--gutter) var(--space-5);
    transform: translateY(-0.5rem);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur-med) var(--ease), transform var(--dur-med) var(--ease), visibility var(--dur-med);
  }
  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .site-nav__link { padding: 0.7rem 0.75rem; font-size: var(--text-base); }
  .site-nav .btn { margin: var(--space-3) 0 0; justify-content: center; }
  .site-header__inner { gap: var(--space-4); }
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.62rem 1.25rem;
  /* Pills everywhere: the one shape the front page, the forms and the
     header all share. */
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-sm);
  line-height: 1.2;
  border: 1px solid transparent;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease),
              box-shadow var(--dur-fast) var(--ease);
  cursor: pointer;
  text-decoration: none;
}
/* A leading brand glyph (Discord, GitHub) has no intrinsic size rule of its
   own, so without this it expands and wraps the label onto several lines.
   .ext-arrow and .arr size themselves and are left alone. */
.btn > svg:not(.ext-arrow):not(.arr) { width: 1em; height: 1em; flex: none; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0) scale(0.99); }

/* Arrows are drawn, not typed: the Google Fonts Inter subset omits U+2192 and
   U+2197, so those characters fell through to a system font and rendered as
   tofu boxes where none was installed. Sized in em so they track the text;
   the class beats the `svg { height: auto }` reset in base.css. */
.arr, .ext-arrow {
  display: inline-block;
  width: 1em;
  height: 1em;
  vertical-align: -0.13em;
}

/* Arrow micro-interaction: any arrow inside a button nudges on hover */
.btn .arr { transition: transform var(--dur-fast) var(--ease-out-expo); }
.btn:hover .arr { transform: translateX(3px); }
/* A back arrow nudges the way it points */
.btn:hover .arr--back { transform: translateX(-3px); }

.btn--primary {
  background: linear-gradient(180deg, #3B84FF 0%, var(--electric-blue) 55%, #1E66E8 100%);
  color: #fff;
  border-color: #1B5FD9;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22), 0 1px 2px rgba(13, 23, 48, 0.18);
}
.btn--primary:hover {
  background: linear-gradient(180deg, #4A8DFF 0%, #2E7AFF 55%, #2470F5 100%);
  color: #fff;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 4px 14px -4px rgba(36, 116, 255, 0.55);
}

.btn--secondary {
  background: var(--surface);
  color: var(--navy);
  border-color: var(--border-strong);
}
.btn--secondary:hover { border-color: var(--slate); background: var(--hover-bg); color: var(--navy); }

.btn--ghost {
  background: transparent;
  color: var(--electric-blue);
  padding-inline: 0.6rem;
}
.btn--ghost:hover { background: var(--selected-bg); }

.btn--navy {
  background: var(--navy);
  color: #fff;
}
.btn--navy:hover { background: var(--navy-700); color: #fff; }

/* Glass pill for dark surfaces (openers, community bands) */
.btn--glass {
  background: rgba(247, 249, 252, 0.05);
  color: #fff;
  border-color: rgba(247, 249, 252, 0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.btn--glass:hover { background: rgba(247, 249, 252, 0.1); border-color: rgba(247, 249, 252, 0.6); color: #fff; }
.btn--glass .tag-link__mark { color: #fff; width: 1rem; height: 1rem; }

.btn--lg { padding: 0.85rem 1.6rem; font-size: var(--text-base); }
.btn--sm { padding: 0.4rem 0.9rem; font-size: var(--text-xs); }

.btn[disabled], .btn[aria-disabled="true"] {
  opacity: 0.55;
  pointer-events: none;
}

.btn .icon { width: 1em; height: 1em; }

/* External link arrow — a touch smaller than the inline arrow */
.ext-arrow { width: 0.92em; height: 0.92em; vertical-align: -0.08em; }

/* ---------------- Badges ---------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  white-space: nowrap;
}
.badge svg { width: 0.7rem; height: 0.7rem; flex-shrink: 0; }

.badge--proposed   { background: var(--slate-soft); color: #55617C; border-color: #D5DBE6; }
.badge--pending    { background: var(--slate-soft); color: #55617C; border-color: #D5DBE6; }
.badge--under_review { background: var(--amber-soft); color: var(--amber); border-color: #F0DCBE; }
.badge--changes_requested { background: var(--amber-soft); color: var(--amber); border-color: #F0DCBE; }
.badge--agent_testing { background: var(--blue-soft); color: #1B5FD9; border-color: #C9DCFF; }
.badge--verified   { background: var(--cyan-soft); color: var(--cyan-deep); border-color: #BEE8EC; }
.badge--approved   { background: var(--cyan-soft); color: var(--cyan-deep); border-color: #BEE8EC; }
.badge--rejected   { background: #FFF0F0; color: #A23A3A; border-color: #F0C5C5; }
.badge--released   { background: var(--green-soft); color: #0B7C57; border-color: #BFE6D7; }
.badge--preparing  { background: var(--blue-soft); color: #1B5FD9; border-color: #C9DCFF; }
.badge--current    { background: var(--green-soft); color: #0B7C57; border-color: #BFE6D7; }
.badge--archived   { background: var(--slate-soft); color: #55617C; border-color: #D5DBE6; }

/* Metadata / review tag chips */
.chip {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.6563rem;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  background: var(--surface-sunken);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.18rem 0.5rem;
  white-space: nowrap;
}
/* ---------------- Cards ---------------- */
.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-xs);
}

.card--interactive {
  transition: transform var(--dur-med) var(--ease-out-expo), box-shadow var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease);
}
/* Gradient hairline that fades in along the top edge on hover */
.card--interactive::after {
  content: "";
  position: absolute;
  top: -1px;
  left: 12%;
  right: 12%;
  height: 1px;
  background: var(--hairline-gradient);
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease);
  pointer-events: none;
}
.card--interactive:hover,
.card--interactive:focus-within {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-strong);
}
.card--interactive:hover::after,
.card--interactive:focus-within::after { opacity: 1; }

/* Task card */
/* ---------------- Stat figure ---------------- */
.stat {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 2.4vw, 1.9rem);
  font-weight: 600;
  color: var(--navy);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}
.stat__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--ink-muted);
}

/* A task row: dense enough that a few hundred tasks stay scannable. */
.task-row {
  position: relative;
  display: grid;
  gap: 0.35rem;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-faint);
  background: var(--surface);
  transition: background var(--dur-fast) var(--ease);
}
.task-row:last-child { border-bottom: none; }
.task-row:hover { background: var(--hover-bg); }
.task-row__head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.4rem var(--space-3);
}
.task-row__id {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  flex-shrink: 0;
}
.task-row__title {
  font-size: var(--text-md);
  font-weight: 700;
  margin: 0;
  line-height: var(--leading-snug);
  min-width: 0;
}
.task-row__title a { color: var(--navy); }
/* Stretched link: the whole row is the hit area */
.task-row__title a::after { content: ""; position: absolute; inset: 0; }
.task-row__title a:hover { text-decoration: none; color: var(--electric-blue); }
.task-row__badges {
  display: inline-flex;
  gap: 0.4rem;
  margin-left: auto;
  flex-shrink: 0;
}
/* One line of summary — enough to tell tasks apart, never enough to bloat */
.task-row__desc {
  margin: 0;
  color: var(--ink-secondary);
  font-size: var(--text-sm);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  line-clamp: 1;
  -webkit-box-orient: vertical;
}
.task-row__foot {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem var(--space-4);
}
.task-row__chips { display: inline-flex; flex-wrap: wrap; gap: 0.35rem; min-width: 0; }
.task-row__facts {
  margin-left: auto;
  font-size: var(--text-xs);
  color: var(--ink-faint);
  white-space: nowrap;
}
@media (max-width: 700px) {
  .task-row { padding: var(--space-4); }
  .task-row__badges { margin-left: 0; }
  .task-row__facts { margin-left: 0; }
}

/* ---------------- Tables ---------------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
}

.data-table {
  width: 100%;
  min-width: 640px;
  font-size: var(--text-sm);
}
.data-table th {
  font-family: var(--font-mono);
  font-size: 0.6563rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-align: left;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-sunken);
  white-space: nowrap;
}
.data-table td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border-faint);
  vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr { transition: background var(--dur-fast) var(--ease); }
.data-table tbody tr:hover { background: var(--hover-bg); }
.data-table .num { font-family: var(--font-mono); text-align: right; }
.data-table th.num { text-align: right; }

/* ---------------- Tag link ----------------
   A small pill for a community destination. The brand colour is carried by the
   mark alone so the tag still belongs to the site's own palette. */
.tag-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.4rem 0.85rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  background: var(--surface);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--ink-secondary);
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
    background var(--dur-fast) var(--ease);
}
.tag-link__mark {
  width: 1.05rem;
  height: 1.05rem;
  flex-shrink: 0;
  color: #5865F2;
}
.tag-link:hover {
  text-decoration: none;
  color: var(--navy);
  border-color: var(--electric-blue);
  background: var(--selected-bg);
}

/* ---------------- Empty states ---------------- */
.empty-state {
  text-align: center;
  padding: var(--space-7) var(--space-5);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
}
.empty-state__orbit {
  width: 4.5rem;
  height: 4.5rem;
  margin: 0 auto var(--space-4);
  opacity: 0.8;
}
.empty-state h3 { margin-bottom: var(--space-2); }
.empty-state p {
  color: var(--ink-muted);
  max-width: 34rem;
  margin: 0 auto var(--space-4);
}

/* ---------------- Filters ---------------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.search-input {
  position: relative;
  flex: 1 1 16rem;
  max-width: 26rem;
}
.search-input input {
  width: 100%;
  padding: 0.6rem 0.9rem 0.6rem 2.3rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  font-size: var(--text-sm);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.search-input input:focus {
  outline: none;
  border-color: var(--electric-blue);
  box-shadow: var(--focus-ring);
}
.search-input svg {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 1rem;
  color: var(--ink-muted);
  pointer-events: none;
}

.select-control {
  display: inline-flex;
  flex-direction: column;
  gap: 0.2rem;
}
.select-control label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.select-control select {
  padding: 0.5rem 2rem 0.5rem 0.7rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%237E8AA3' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 0.7rem center;
  appearance: none;
  font-size: var(--text-sm);
  color: var(--navy);
  cursor: pointer;
}
.select-control select:focus {
  outline: none;
  border-color: var(--electric-blue);
  box-shadow: var(--focus-ring);
}

.filter-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: var(--text-sm);
  color: var(--ink-secondary);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  border-radius: var(--radius-full);
  padding: 0.4rem 0.85rem;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}
.filter-toggle[aria-pressed="true"] {
  background: var(--selected-bg);
  border-color: var(--electric-blue);
  color: #1B5FD9;
  font-weight: 600;
}
.filter-toggle:hover { border-color: var(--slate); }

/* ---------------- Steps / lifecycle ----------------
   Each step carries its own node in the card's top-left corner, next to the
   step number — no connecting axis, so the list needs no reserved top space. */
.lifecycle {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-5);
  /* Keep the list reset here rather than inline: an inline `padding: 0` would
     also wipe any padding the layout depends on. */
  list-style: none;
  margin: 0;
  padding: 0;
}
.lifecycle__step {
  position: relative;
  margin-bottom: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-4);
  transition: border-color var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), transform var(--dur-med) var(--ease-out-expo);
}
.lifecycle__step:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}
/* Node sits on the number line, so it stays aligned whatever the type metrics */
.lifecycle__num {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--electric-blue);
  margin-bottom: var(--space-2);
}
.lifecycle__num::before {
  content: "";
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--slate);
  transition: border-color var(--dur-med) var(--ease), background var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease);
}
.lifecycle__step:hover .lifecycle__num::before {
  border-color: var(--electric-blue);
  background: var(--electric-blue);
  box-shadow: 0 0 0 4px rgba(36, 116, 255, 0.15);
}
.lifecycle__step h3 { font-size: var(--text-base); margin-bottom: var(--space-2); }
.lifecycle__step p { font-size: var(--text-sm); color: var(--ink-secondary); margin: 0; }

@media (max-width: 1000px) {
  .lifecycle { grid-template-columns: 1fr; max-width: 30rem; }
}

/* ---------------- Verification panel ---------------- */
.verify-panel {
  border: 1px solid #BEE8EC;
  background: linear-gradient(180deg, #FAFEFE 0%, var(--cyan-soft) 140%);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}
.verify-panel__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--cyan-deep);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.verify-panel__title svg { width: 1rem; height: 1rem; }

/* ---------------- Definition grids ---------------- */
.def-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: var(--space-4) var(--space-5);
  margin: 0;
}
.def-grid dt {
  font-family: var(--font-mono);
  font-size: 0.6563rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 0.2rem;
}
.def-grid dd {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--navy);
  font-weight: 500;
  overflow-wrap: anywhere;
}

/* ---------------- Tooltip ---------------- */
.tooltip-host { position: relative; display: inline-flex; }
.tooltip-host .tooltip {
  position: absolute;
  bottom: calc(100% + 0.5rem);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--navy);
  color: #E8EDF7;
  font-size: var(--text-xs);
  font-family: var(--font-sans);
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
  line-height: 1.45;
  padding: 0.5rem 0.7rem;
  border-radius: var(--radius-sm);
  width: max-content;
  max-width: 16rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), visibility var(--dur-fast);
  z-index: 50;
  pointer-events: none;
  white-space: normal;
}
.tooltip-host:hover .tooltip,
.tooltip-host:focus-visible .tooltip,
.tooltip-host:focus-within .tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ---------------- Footer ---------------- */
.site-footer {
  position: relative;
  background:
    radial-gradient(ellipse 60% 70% at 85% 110%, rgba(36, 116, 255, 0.12), transparent 65%),
    var(--navy);
  color: #B9C2D6;
  margin-top: var(--space-7);
  font-size: var(--text-sm);
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 15%;
  right: 15%;
  height: 1px;
  background: var(--hairline-gradient);
}
/* Faint orbit watermark drifting off the right edge */
.site-footer::after {
  content: "";
  position: absolute;
  right: -8rem;
  bottom: -10rem;
  width: 30rem;
  height: 30rem;
  border: 1px solid rgba(247, 249, 252, 0.05);
  border-radius: 50%;
  pointer-events: none;
  box-shadow: inset 0 0 0 60px transparent, 0 0 0 80px rgba(247, 249, 252, 0.015);
}
.site-footer a { color: #D7DEEC; }
.site-footer a:hover { color: #fff; }
.site-footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-6);
  padding-block: var(--space-6);
}
.site-footer__brand .brand__name,
.site-footer__brand .brand__sub { color: #fff; }
.site-footer__brand p { color: #8D99B4; max-width: 22rem; margin-top: var(--space-3); }
.site-footer h4 {
  color: #fff;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 0.55rem; }
.site-footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-block: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
  align-items: center;
  color: #8D99B4;
  font-size: var(--text-xs);
}
.site-footer__bottom .mono { letter-spacing: 0.05em; }

@media (max-width: 900px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .site-footer__inner { grid-template-columns: 1fr; }
}

/* ---------------- Copy feedback ---------------- */
.copy-feedback {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--green);
  opacity: 0;
  transition: opacity var(--dur-med) var(--ease);
}
.copy-feedback.is-visible { opacity: 1; }

/* ---------------- Toast/notice ---------------- */
.notice {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  background: var(--blue-soft);
  border: 1px solid #C9DCFF;
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: var(--text-sm);
  color: var(--ink-secondary);
}
.notice svg { width: 1.1rem; height: 1.1rem; flex-shrink: 0; color: var(--electric-blue); margin-top: 0.1rem; }
.notice p { margin: 0; }

/* ---------------- Precision details ---------------- */

/* Corner "+" registration marks (blueprint idiom) */
.reg-marks { position: relative; }
.reg-marks::before,
.reg-marks::after {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--ink-faint);
  position: absolute;
  line-height: 1;
  pointer-events: none;
}
.reg-marks::before { content: "+"; top: 0.6rem; left: 0.75rem; }
.reg-marks::after { content: "+"; bottom: 0.6rem; right: 0.75rem; }

/* Center-plus section divider */
.divider-plus {
  border: none;
  margin: 0;
  height: 1px;
  background: var(--border);
  position: relative;
  overflow: visible;
}
.divider-plus::after {
  content: "+";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-mono);
  color: var(--ink-faint);
  background: var(--bg);
  padding-inline: 0.6rem;
  font-size: 0.85rem;
}

/* Fine film-grain noise for dark surfaces (SVG turbulence, ~4% opacity) */
.texture-noise::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Dark section shell: navy + grid + glow + noise */
.dark-shell {
  position: relative;
  background:
    radial-gradient(ellipse 70% 60% at 18% 0%, rgba(36, 116, 255, 0.18), transparent 60%),
    radial-gradient(ellipse 50% 55% at 92% 100%, rgba(24, 183, 201, 0.1), transparent 60%),
    var(--navy);
  overflow: hidden;
}
.dark-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-dark) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  mask-image: radial-gradient(ellipse 90% 90% at 50% 40%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 90% at 50% 40%, black 30%, transparent 100%);
}
/* Gradient hairline along the top edge of dark shells */
.dark-shell::after {
  content: "";
  position: absolute;
  top: 0;
  left: 8%;
  right: 8%;
  height: 1px;
  background: var(--hairline-gradient);
  pointer-events: none;
}

/* ---------------- Orbit animation ---------------- */
@keyframes orbit-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.orbit-anim { transform-origin: center; animation: orbit-spin 40s linear infinite; }
.orbit-anim--reverse { animation-direction: reverse; animation-duration: 60s; }
@media (prefers-reduced-motion: reduce) {
  .orbit-anim, .orbit-anim--reverse { animation: none; }
}

/* Task rows must never widen the board: constrain the implicit grid
   column so one-line summaries clamp instead of stretching the row, and
   let long chips and filter selects wrap inside a phone viewport. */
.task-list { grid-template-columns: minmax(0, 1fr); }
.task-row { grid-template-columns: minmax(0, 1fr); }
.task-row > * { min-width: 0; }
.task-row__title { overflow-wrap: anywhere; }
.task-row__chips .chip { max-width: 100%; white-space: normal; line-height: 1.3; }
.explorer-controls__row > *, .filter-bar { min-width: 0; max-width: 100%; }
.filter-bar > * { min-width: 0; max-width: 100%; }
.select-control { min-width: 0; max-width: 100%; }
.select-control select { max-width: 100%; min-width: 0; text-overflow: ellipsis; }
@media (max-width: 700px) {
  .task-row__facts { white-space: normal; }
}