/* ==========================================================================
   IMPRESIVE — International Multi-database study PREparedness
   Shared stylesheet (design tokens + components)
   Visual style inspired by AsPEN (clean / professional), blue palette.
   ========================================================================== */

/* ----- Design tokens ----- */
:root {
  /* Blue palette */
  --navy-900: #0A3A6B;   /* deep blue — footer / dark sections (lighter, less heavy) */
  --navy-800: #0E4E96;
  --blue-700: #004E9E;   /* Amgen-blue dark (hover) */
  --blue-600: #0063C3;   /* AMGEN BLUE — primary */
  --blue-500: #2480D8;   /* interactive */
  --blue-400: #4F9BE8;
  --blue-200: #BBD6F2;
  --sky-400: #38B6E0;    /* light sky-blue accent (same family as Amgen blue) */
  --cyan-400: #38B6E0;   /* accent alias */
  --teal-400: #14B8A6;   /* subtle teal — used ONLY as the far end of gradients */
  /* Shared hero gradient (homepage + every inner page header). Blue dominates;
     teal bridges; only a small PHDc-green corner at the very end. */
  --hero-grad: linear-gradient(140deg, #06294F 0%, #0A4A92 32%, var(--blue-600) 64%, #2589A0 88%, #3F8C6E 100%);

  --ink: #16222F;
  --slate: #46566A;
  --muted: #5B6A79;
  --hairline: #E1E8F0;
  --surface: #FFFFFF;
  --canvas: #F5F8FC;     /* off-white / page bg */
  --canvas-2: #EDF3FA;

  --ok: #1E9E6A;
  --warn: #E0A100;

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", "PingFang TC", "Microsoft JhengHei", sans-serif;
  /* AsPEN-style typography: Inter everywhere; headings use heavier weights, not a serif.
     --font-serif is kept as an alias (now Inter) so existing usages need no edits. */
  --font-serif: var(--font-sans);

  /* Layout */
  --maxw: 1180px;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(10, 37, 64, .06), 0 1px 3px rgba(10, 37, 64, .08);
  --shadow-md: 0 6px 18px rgba(10, 37, 64, .08), 0 2px 6px rgba(10, 37, 64, .06);
  --shadow-lg: 0 18px 48px rgba(10, 37, 64, .14);
  --ring: 0 0 0 3px rgba(30, 120, 212, .25);

  --space: clamp(3rem, 7vw, 6rem);
}

/* ----- Reset / base ----- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--canvas);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { color: var(--blue-700); }
h1, h2, h3, h4 { font-family: var(--font-sans); color: var(--navy-900); line-height: 1.2; font-weight: 700; letter-spacing: -.015em; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); font-weight: 800; letter-spacing: -.022em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); margin: 0 0 .6em; }
h3 { font-size: 1.25rem; margin: 0 0 .5em; }
p { margin: 0 0 1rem; }
ul, ol { margin: 0 0 1rem; padding-left: 1.2em; }
li { margin: .3em 0; }
:focus-visible { outline: none; box-shadow: var(--ring); border-radius: 6px; }
main:focus { outline: none; }

/* skip-to-content link (visible only on focus) */
.skip-link {
  position: fixed; top: -60px; left: 12px; z-index: 200;
  background: var(--blue-600); color: #fff; padding: .7em 1.2em; border-radius: 0 0 10px 10px;
  font-weight: 600; box-shadow: var(--shadow-md); transition: top .18s ease;
}
.skip-link:focus { top: 0; color: #fff; }

/* ----- Layout helpers ----- */
.wrap { width: min(100% - 2.4rem, var(--maxw)); margin-inline: auto; }
.section { padding-block: var(--space); }
.section--tint { background: var(--canvas-2); }
.section--navy { background: var(--navy-900); color: #DCE7F2; }
.section--navy h2, .section--navy h3 { color: #fff; }
.eyebrow {
  font-family: var(--font-sans); font-weight: 700; font-size: .78rem;
  letter-spacing: .14em; text-transform: uppercase; color: var(--blue-600);
  margin: 0 0 .8rem;
}
.section--navy .eyebrow { color: var(--cyan-400); }
.lead { font-size: 1.18rem; color: var(--slate); max-width: 60ch; }
.center { text-align: center; }
.center .lead { margin-inline: auto; }
.grid { display: grid; gap: 1.5rem; }
.cols-2 { grid-template-columns: repeat(2, 1fr); }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* ----- Buttons ----- */
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  font-weight: 600; font-size: .98rem; padding: .72em 1.4em;
  border-radius: 999px; border: 1.5px solid transparent; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--blue-600); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--blue-700); color: #fff; box-shadow: var(--shadow-md); }
.btn--ghost { background: transparent; color: var(--navy-900); border-color: var(--hairline); }
.btn--ghost:hover { border-color: var(--blue-400); color: var(--blue-700); }
.btn--light { background: #fff; color: var(--navy-900); }
.btn--light:hover { background: var(--canvas); color: var(--blue-700); }
.btn--lg { font-size: 1.05rem; padding: .85em 1.7em; }

/* ==========================================================================
   Header / nav
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--hairline);
  transition: box-shadow .2s ease;
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }
.nav { display: flex; align-items: center; gap: 1.5rem; height: 72px; }
.brand { display: flex; align-items: center; gap: .6rem; font-family: var(--font-serif);
  font-weight: 700; font-size: 1.3rem; color: var(--navy-900); letter-spacing: -.01em; }
.brand:hover { color: var(--navy-900); }
.brand .mark { width: 34px; height: 34px; flex: none; }
.brand small { display: block; font-family: var(--font-sans); font-weight: 500;
  font-size: .62rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.nav-links { display: flex; align-items: center; gap: .35rem; margin-left: auto; }
.nav-links a {
  color: var(--slate); font-weight: 500; font-size: .95rem;
  padding: .5em .8em; border-radius: 8px;
}
.nav-links a:hover { color: var(--navy-900); background: var(--canvas-2); }
.nav-links a[aria-current="page"] { color: var(--blue-700); font-weight: 600; }
.nav-links .btn { margin-left: .5rem; padding: .55em 1.1em; }
/* dropdown */
.nav-dd { position: relative; }
.nav-dd-toggle {
  display: inline-flex; align-items: center; gap: .25rem; background: none; border: 0; cursor: pointer;
  font: inherit; color: var(--slate); font-weight: 500; font-size: .95rem; padding: .5em .8em;
  border-radius: 8px;
}
.nav-dd-toggle:hover { color: var(--navy-900); background: var(--canvas-2); }
.nav-dd.is-active > .nav-dd-toggle { color: var(--blue-700); font-weight: 600; }
.nav-dd-toggle svg { transition: transform .2s ease; }
.nav-dd.is-open .nav-dd-toggle svg { transform: rotate(180deg); }
.nav-dd-menu {
  position: absolute; top: calc(100% + 8px); right: 0; min-width: 230px;
  background: #fff; border: 1px solid var(--hairline); border-radius: 12px;
  box-shadow: var(--shadow-md); padding: .4rem; display: grid; gap: .1rem;
  opacity: 0; transform: translateY(-8px); pointer-events: none; transition: .16s ease;
}
.nav-dd.is-open .nav-dd-menu { opacity: 1; transform: none; pointer-events: auto; }
.nav-dd-menu a { padding: .6em .8em; border-radius: 8px; font-size: .92rem; color: var(--slate); }
.nav-dd-menu a:hover { background: var(--canvas-2); color: var(--navy-900); }

.nav-toggle {
  display: none; margin-left: auto; background: none; border: 0; cursor: pointer;
  width: 44px; height: 44px; color: var(--navy-900);
}
.nav-toggle svg { width: 26px; height: 26px; }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav-links {
    position: fixed; inset: 72px 0 auto 0; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--hairline); padding: .8rem 1.2rem 1.4rem;
    gap: .2rem; box-shadow: var(--shadow-md);
    transform: translateY(-12px); opacity: 0; pointer-events: none; transition: .2s ease;
  }
  .nav-links.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { padding: .8em .6em; font-size: 1.05rem; }
  .nav-links .btn { margin: .5rem 0 0; justify-content: center; }
  /* dropdown becomes inline list on mobile */
  .nav-dd { width: 100%; }
  .nav-dd-toggle { width: 100%; justify-content: space-between; font-size: 1.05rem; padding: .8em .6em; }
  .nav-dd-menu {
    position: static; opacity: 1; transform: none; pointer-events: auto; box-shadow: none;
    border: 0; border-left: 2px solid var(--hairline); border-radius: 0; margin: 0 0 .2rem .6rem;
    padding: 0 0 0 .4rem; display: none;
  }
  .nav-dd.is-open .nav-dd-menu { display: grid; }
  .nav-dd-menu a { font-size: 1rem; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative; overflow: hidden;
  background: var(--hero-grad);
  color: #EAF2FB;
}
.hero::after {  /* faint world-map / grid motif */
  content: ""; position: absolute; inset: 0; opacity: .12; pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(255,255,255,.7) 1.1px, transparent 1.2px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(900px 500px at 75% 30%, #000 30%, transparent 75%);
          mask-image: radial-gradient(900px 500px at 75% 30%, #000 30%, transparent 75%);
}
.hero .wrap { position: relative; z-index: 1; padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.hero h1 { color: #fff; max-width: 16ch; }
.hero .kicker {
  display: inline-flex; align-items: center; gap: .6em; font-size: .82rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase; color: #fff;
  background: rgba(255,255,255,.10); border: 1px solid rgba(255,255,255,.3);
  padding: .4em 1em; border-radius: 999px; margin-bottom: 1.4rem;
}
.hero .tagline { font-size: clamp(1.15rem, 2.4vw, 1.5rem); color: #BFD6EE; font-weight: 500;
  margin: .8rem 0 0; font-family: var(--font-serif); }
.hero .subtag { color: #93B4D6; margin: .3rem 0 0; font-size: 1rem; }
.hero .definition { max-width: 62ch; color: #CFE0F1; font-size: 1.12rem; margin: 1.6rem 0 2rem; }
.hero .cta-row { display: flex; flex-wrap: wrap; gap: .8rem; }
.hero .zh { color: #9FC0E0; font-size: .98rem; }

/* page hero (inner pages) */
.page-hero { background: var(--hero-grad); color: #EAF2FB; }
.page-hero .wrap { padding-block: clamp(2.6rem, 6vw, 4.2rem); }
.page-hero h1 { color: #fff; }
.page-hero p { color: #C7DBF0; max-width: 64ch; font-size: 1.12rem; margin-top: .6rem; }
.breadcrumb { font-size: .85rem; color: #8FB2D6; margin-bottom: 1rem; }
.breadcrumb a { color: #B9D2EC; }

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card--hover:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--blue-200); }
.card h3 { margin-top: .2rem; }
.card p:last-child { margin-bottom: 0; }
.card .icon {
  position: relative; width: 50px; height: 44px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--blue-600), var(--cyan-400));
  color: #fff; margin: 10px 0 1rem; border: 2.5px solid #0a2540;
  box-shadow: 3px 3px 0 rgba(10,37,64,.22);
}
/* studs — turn the capability icon into a LEGO brick tile */
.card .icon::before {
  content: ""; position: absolute; top: -9px; left: 7px; right: 7px; height: 13px; pointer-events: none;
  background-image:
    radial-gradient(circle at 11px 6px, rgba(255,255,255,.85) 0 3px, transparent 3.6px),
    radial-gradient(circle at 11px 7px, rgba(10,37,64,.85) 0 4px, transparent 4.6px);
  background-size: 22px 13px; background-repeat: repeat-x;
}
.card .icon svg { width: 22px; height: 22px; }
.card .num { font-family: var(--font-serif); font-weight: 700; color: var(--blue-200);
  font-size: 1.4rem; line-height: 1; }

/* value strip */
.values { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0;
  border: 1px solid var(--hairline); border-radius: var(--radius); overflow: hidden; background: #fff; }
.values .v { padding: 1.4rem 1.2rem; border-right: 1px solid var(--hairline); }
.values .v:last-child { border-right: 0; }
.values .v b { display: block; color: var(--blue-700); font-family: var(--font-serif); font-size: 1.05rem; }
.values .v span { font-size: .9rem; color: var(--muted); }

/* stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.stat { text-align: center; padding: 1.5rem 1rem; background: #fff; border: 1px solid var(--hairline);
  border-radius: var(--radius); }
.stat .figure { font-family: var(--font-serif); font-weight: 700; color: var(--navy-900);
  font-size: clamp(2.2rem, 5vw, 3rem); line-height: 1; }
.stat .figure .plus { color: var(--cyan-400); }
.stat .label { color: var(--muted); font-size: .92rem; margin-top: .5rem; }
.section--navy .stat { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.12); }
.section--navy .stat .figure { color: #fff; }
.section--navy .stat .label { color: #A9C4DE; }

/* ==========================================================================
   Pipeline / flow diagram (methods)
   ========================================================================== */
.pipeline { display: flex; flex-wrap: wrap; gap: .6rem; align-items: stretch; }
.pipeline .step {
  flex: 1 1 150px; background: #fff; border: 1px solid var(--hairline);
  border-left: 4px solid var(--blue-500); border-radius: var(--radius-sm);
  padding: .9rem 1rem; position: relative; box-shadow: var(--shadow-sm);
}
.pipeline .step b { display: block; color: var(--navy-900); font-family: var(--font-serif); }
.pipeline .step span { font-size: .82rem; color: var(--muted); }
.pipeline .step .n { font-size: .72rem; font-weight: 700; color: var(--blue-400); }

/* compare two-column (why page) */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.compare .panel { border-radius: var(--radius); padding: 1.6rem; border: 1px solid var(--hairline); }
.compare .yes { background: #F0F8F3; border-color: #CBEAD8; }
.compare .no { background: #FBF4F1; border-color: #F1D9CF; }
.compare h3 { display: flex; align-items: center; gap: .5rem; }
.compare .yes h3 { color: #157A4E; }
.compare .no h3 { color: #B5532B; }
.compare ul { padding-left: 1.1em; }

/* accordion (methods detail) */
.accordion { border: 1px solid var(--hairline); border-radius: var(--radius); overflow: hidden; background: #fff; }
.accordion details { border-bottom: 1px solid var(--hairline); }
.accordion details:last-child { border-bottom: 0; }
.accordion summary {
  cursor: pointer; padding: 1.1rem 1.4rem; font-family: var(--font-serif); font-weight: 600;
  color: var(--navy-900); font-size: 1.1rem; list-style: none; display: flex; align-items: center; gap: .8rem;
}
.accordion summary::-webkit-details-marker { display: none; }
.accordion summary::before {
  content: "+"; width: 26px; height: 26px; flex: none; border-radius: 7px;
  background: var(--canvas-2); color: var(--blue-600); display: grid; place-items: center;
  font-size: 1.2rem; font-family: var(--font-sans); transition: .2s;
}
.accordion details[open] summary::before { content: "−"; background: var(--blue-600); color: #fff; }
.accordion .body { padding: 0 1.4rem 1.3rem 3.6rem; color: var(--slate); }
.accordion .body ul { columns: 2; column-gap: 2rem; }
@media (max-width: 640px) { .accordion .body ul { columns: 1; } .accordion .body { padding-left: 1.4rem; } }

/* callout */
.callout {
  border-radius: var(--radius); padding: 1.8rem 2rem;
  background: linear-gradient(135deg, var(--navy-800), var(--blue-600)); color: #fff;
  box-shadow: var(--shadow-md);
}
.callout .q { font-family: var(--font-serif); font-size: clamp(1.2rem, 2.6vw, 1.7rem); font-weight: 600; }
.callout .zh { color: #BBD6F2; margin-top: .4rem; }

/* tags / pills */
.pill { display: inline-block; font-size: .76rem; font-weight: 600; padding: .25em .7em;
  border-radius: 999px; background: var(--canvas-2); color: var(--blue-700); }
.pill--ok { background: #E6F5EE; color: var(--ok); }
.pill--warn { background: #FBF2DA; color: #9A7400; }

/* LEGO journey (isometric brick roadmap) */
.lego-journey { position: relative; background: var(--canvas-2);
  border: 1px solid var(--hairline); border-radius: var(--radius);
  box-shadow: var(--shadow-sm); padding: 1.2rem; overflow: hidden; }
.lego-journey svg { width: 100%; height: auto; display: block; }

/* LEGO illustrations placed on each hero (decorative) */
.page-hero { position: relative; overflow: hidden; }
.hero .wrap, .page-hero .wrap { position: relative; z-index: 2; }
.lego-scene { position: absolute; right: clamp(10px, 3vw, 46px); bottom: 0; z-index: 1;
  display: flex; align-items: flex-end; gap: 8px; pointer-events: none; filter: drop-shadow(0 6px 6px rgba(6,30,60,.25)); }
.lego-scene .lego-fig { width: 60px; height: auto; }
.lego-scene .lego-tower { width: 116px; height: auto; }
.lego-scene .lego-tiles { display: flex; flex-direction: column; gap: 6px; }
.lego-scene .lego-tile { width: 48px; height: auto; }
.lego-scene .lego-fig { width: 78px; }
@media (max-width: 1040px) { .lego-scene { display: none; } }

/* footer parade of minifigures */
.lego-parade { display: flex; justify-content: center; align-items: flex-end; flex-wrap: wrap;
  gap: 16px; padding-bottom: 1.6rem; margin-bottom: 1.4rem;
  border-bottom: 1px solid rgba(255,255,255,.14); }
.lego-parade .lego-fig { width: 66px; height: auto; }
.lego-parade .lego-tile { width: 52px; height: auto; }
@media (max-width: 520px) { .lego-parade .lego-fig { width: 54px; } .lego-parade .lego-tile { width: 44px; } }

/* wide-screen side-gutter scatter (only where it clears the centered content) */
.lego-gutter { position: absolute; bottom: 26px; z-index: 0; pointer-events: none;
  filter: drop-shadow(0 6px 6px rgba(6,30,60,.2)); }
.lego-gutter.left { left: 14px; } .lego-gutter.right { right: 14px; }
.lego-gutter .lego-fig { width: 70px; height: auto; }
.lego-gutter .lego-tile { width: 54px; height: auto; }
@media (max-width: 1340px) { .lego-gutter { display: none; } }

/* a minifigure peeking on top of every card */
.lego-peek { position: absolute; top: -24px; right: 12px; width: 44px; z-index: 3;
  pointer-events: none; transform-origin: 50% 100%; filter: drop-shadow(0 4px 4px rgba(6,30,60,.2)); }
.lego-peek .lego-fig { width: 44px; height: auto; display: block; }
@media (max-width: 600px) { .lego-peek { width: 36px; right: 8px; top: -20px; } .lego-peek .lego-fig { width: 36px; } }
/* card minifig: three different hover stunts (happy jump / skip-dance / wiggle) */
.card:hover .pk0 { animation: lego-jump .9s cubic-bezier(.34,1.5,.5,1); }
.card:hover .pk1 { animation: lego-flip 1s ease; }
.card:hover .pk2 { animation: lego-wiggle .7s ease; }
@keyframes lego-jump {
  0% { transform: translateY(0) scaleY(1); }
  15% { transform: translateY(0) scaleX(1.12) scaleY(.82); }
  45% { transform: translateY(-26px) rotate(6deg) scaleY(1.05); }
  68% { transform: translateY(0) rotate(0) scaleX(1.08) scaleY(.92); }
  84% { transform: translateY(-9px); }
  100% { transform: translateY(0); }
}
@keyframes lego-flip {
  0% { transform: translateY(0) rotate(0); }
  18% { transform: translateY(-10px) rotate(-10deg); }
  38% { transform: translateY(0) rotate(0) scaleY(.94); }
  56% { transform: translateY(-10px) rotate(10deg); }
  76% { transform: translateY(0) rotate(0) scaleY(.94); }
  100% { transform: translateY(0) rotate(0); }
}
@keyframes lego-wiggle {
  0%,100% { transform: rotate(0); }
  20% { transform: rotate(-15deg); } 45% { transform: rotate(12deg); }
  70% { transform: rotate(-7deg); } 88% { transform: rotate(4deg); }
}
/* idle ambient motion for hero + footer minifigs */
@keyframes lego-bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
@keyframes lego-sway { 0%,100% { transform: rotate(-3deg); } 50% { transform: rotate(3deg); } }
.lego-scene .lego-fig, .lego-parade .lego-fig { transform-origin: 50% 100%; animation: lego-bob 3.2s ease-in-out infinite; }
.lego-scene .lego-fig:nth-child(odd), .lego-parade .lego-fig:nth-child(3n) { animation: lego-sway 4.2s ease-in-out infinite; }
.lego-parade .lego-fig:nth-child(2) { animation-delay: .25s; }
.lego-parade .lego-fig:nth-child(3) { animation-delay: .55s; }
.lego-parade .lego-fig:nth-child(4) { animation-delay: .85s; }
.lego-parade .lego-fig:nth-child(5) { animation-delay: 1.15s; }

/* small brick beside every section heading */
.lego-h-brick { display: inline-block; width: 30px; vertical-align: -5px; margin-right: 11px; }
.lego-h-brick .lego-tile { width: 30px; height: auto; display: inline-block; }
@media (max-width: 600px) { .lego-h-brick { width: 24px; margin-right: 8px; } .lego-h-brick .lego-tile { width: 24px; } }

/* waving arm (independent part) */
.lego-arm { transform-box: fill-box; transform-origin: 28% 96%; animation: lego-wave-idle 2.6s ease-in-out infinite; }
@keyframes lego-wave-idle { 0%,100% { transform: rotate(-5deg); } 50% { transform: rotate(-15deg); } }
.card:hover .lego-arm { animation: lego-wave-big .45s ease-in-out infinite; }
@keyframes lego-wave-big { 0%,100% { transform: rotate(-10deg); } 50% { transform: rotate(-46deg); } }

/* occasional blink (eyes squish) */
.lego-eyes { transform-box: fill-box; transform-origin: 50% 50%; animation: lego-blink 5.5s ease-in-out infinite; animation-delay: var(--bd, 0s); }
@keyframes lego-blink { 0%,90%,100% { transform: scaleY(1); } 94% { transform: scaleY(.12); } }
.lego-scene .lego-fig:nth-child(2) { --bd: 1.4s; } .lego-scene .lego-fig:nth-child(3) { --bd: 2.6s; } .lego-scene .lego-fig:nth-child(4) { --bd: 3.7s; }
.lego-parade .lego-fig:nth-child(3) { --bd: 1.6s; } .lego-parade .lego-fig:nth-child(4) { --bd: 2.7s; } .lego-parade .lego-fig:nth-child(5) { --bd: 3.8s; }

/* speech bubble on card hover */
.lego-bubble { position: absolute; left: 50%; top: -20px; transform: translate(-50%, 5px) scale(.5);
  transform-origin: bottom center; background: #fff; border: 2px solid #16263f; border-radius: 10px;
  padding: 2px 8px; font-size: 11px; font-weight: 800; color: #16263f; white-space: nowrap;
  opacity: 0; pointer-events: none; transition: .2s cubic-bezier(.3,1.5,.5,1); z-index: 5;
  box-shadow: 2px 2px 0 rgba(10,37,64,.2); }
.lego-bubble::after { content: ""; position: absolute; left: 50%; bottom: -8px; transform: translateX(-50%);
  border: 5px solid transparent; border-top-color: #16263f; }
.card:hover .lego-bubble { opacity: 1; transform: translate(-50%, 0) scale(1); }

@media (prefers-reduced-motion: reduce) {
  .card:hover .lego-peek, .lego-scene .lego-fig, .lego-parade .lego-fig,
  .lego-arm, .lego-eyes { animation: none !important; }
}

/* CDM showcase — framed like a LEGO build-instruction plate */
.cdm-showcase { position: relative; margin: 1.8rem 0 0; background: #fff;
  border: 2.5px solid var(--brick-edge, #0E3A66); border-radius: 18px;
  box-shadow: 0 14px 30px rgba(10,37,64,.14), 0 3px 0 rgba(10,37,64,.10);
  padding: 16px; }
.cdm-showcase img { width: 100%; height: auto; display: block; border-radius: 12px;
  box-shadow: inset 0 0 0 1px rgba(10,37,64,.06); }
.cdm-showcase figcaption { text-align: center; color: var(--muted); font-size: .92rem; margin-top: .75rem; }
.cdm-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem 1.5rem; margin-top: 1.8rem; }
.cdm-step { display: flex; gap: .7rem; align-items: flex-start; }
.cdm-step .n { flex: none; width: 32px; height: 28px; border-radius: 7px; color: #fff; font-weight: 800;
  display: grid; place-items: center; border: 2px solid #0a2540; box-shadow: 2px 2px 0 rgba(10,37,64,.25); }
.cdm-step b { color: var(--navy-900); }
.cdm-step p { margin: .15rem 0 0; color: var(--slate); font-size: .92rem; line-height: 1.5; }
@media (max-width: 760px) { .cdm-steps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .cdm-steps { grid-template-columns: 1fr; } }

/* database cards */
.db-card .flag { font-size: 1.6rem; }
.db-card .meta { display: grid; grid-template-columns: auto 1fr; gap: .25rem .8rem;
  font-size: .9rem; margin-top: .8rem; }
.db-card .meta dt { color: var(--muted); }
.db-card .meta dd { margin: 0; color: var(--ink); }

/* readiness dashboard (mock) */
.readiness { display: grid; gap: .9rem; }
.readiness .row { display: grid; grid-template-columns: 180px 1fr 48px; align-items: center; gap: 1rem; }
.readiness .row .name { font-size: .92rem; color: var(--slate); }
.readiness .bar { height: 12px; border-radius: 999px; background: var(--canvas-2); overflow: hidden; }
.readiness .bar > i { display: block; height: 100%; border-radius: 999px;
  background: linear-gradient(90deg, var(--blue-600), var(--teal-400)); width: 0; transition: width 1s ease; }
.readiness .pct { font-weight: 700; color: var(--navy-900); font-size: .9rem; text-align: right; }
@media (max-width: 560px) { .readiness .row { grid-template-columns: 1fr 40px; }
  .readiness .row .name { grid-column: 1 / -1; } }

/* forms */
.form { display: grid; gap: 1.1rem; }
.field { display: grid; gap: .4rem; }
.field.span-2 { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: .9rem; color: var(--navy-900); }
.field label .req { color: #C0392B; }
.field input, .field select, .field textarea {
  font: inherit; font-size: .98rem; padding: .7em .85em; border: 1.5px solid var(--hairline);
  border-radius: var(--radius-sm); background: #fff; color: var(--ink); width: 100%;
}
.field textarea { resize: vertical; min-height: 120px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue-400); box-shadow: var(--ring); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.form-note { font-size: .85rem; color: var(--muted); }
.form-status { padding: .9rem 1.1rem; border-radius: var(--radius-sm); font-size: .92rem; display: none; }
.form-status.show { display: block; }
.form-status.ok { background: #E6F5EE; color: #14794E; border: 1px solid #BFE6D0; }

/* join entry cards */
.entry { display: grid; gap: 1.2rem; }
.entry .card { display: flex; flex-direction: column; }
.entry .card .btn { margin-top: auto; align-self: flex-start; }

/* timeline / roadmap (used lightly) */
.roadmap { display: grid; gap: 0; }
.roadmap .phase { display: grid; grid-template-columns: 120px 1fr; gap: 1.4rem;
  padding: 1.2rem 0; border-top: 1px solid var(--hairline); }
.roadmap .phase .tag { font-family: var(--font-serif); font-weight: 700; color: var(--blue-600); }

/* dashboards / charts */
.viz-legend { display: flex; flex-wrap: wrap; gap: .4rem 1.2rem; font-size: .85rem; color: var(--slate); margin-top: .8rem; }
.viz-legend span { display: inline-flex; align-items: center; gap: .4rem; }
.viz-legend i { width: 14px; height: 14px; border-radius: 4px; display: inline-block; }
.chart-card svg { width: 100%; height: auto; }
.chart-cap { font-size: .85rem; color: var(--muted); margin-top: .6rem; }
.chart-card svg .tip { cursor: pointer; transition: opacity .12s ease; }
.chart-card svg .tip:hover { opacity: .78; }
.chart-tip {
  position: fixed; z-index: 120; background: var(--navy-900); color: #fff; font-size: .82rem;
  font-weight: 500; padding: .45em .75em; border-radius: 8px; pointer-events: none;
  box-shadow: var(--shadow-md); opacity: 0; transform: translateY(4px); transition: opacity .12s ease;
  white-space: nowrap; max-width: 80vw;
}
.chart-tip.show { opacity: 1; transform: none; }

.matrix { width: 100%; border-collapse: collapse; font-size: .9rem; }
.matrix th, .matrix td { padding: .55rem .6rem; text-align: center; border-bottom: 1px solid var(--hairline); }
.matrix thead th { color: var(--muted); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
.matrix tbody th { text-align: left; color: var(--navy-900); font-family: var(--font-serif); font-weight: 600; white-space: nowrap; }
.matrix .cell { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 7px; font-weight: 700; }
.matrix .yes { background: #E6F5EE; color: #1E9E6A; }
.matrix .part { background: #FBF2DA; color: #9A7400; }
.matrix .no { background: #F3F0F0; color: #B8B0B0; }
.matrix-wrap { overflow-x: auto; }

.rating { display: inline-block; font-size: .76rem; font-weight: 700; padding: .25em .7em; border-radius: 999px; }
.rating.high { background: #E6F5EE; color: #1E9E6A; }
.rating.mod { background: #FBF2DA; color: #9A7400; }
.rating.low { background: #F6E7E2; color: #C0563A; }

/* timeline (projects milestones) */
.timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px;
  background: linear-gradient(var(--blue-400), var(--cyan-400)); }
.timeline li { position: relative; padding: 0 0 1.5rem 2.4rem; }
.timeline li:last-child { padding-bottom: 0; }
.timeline .dot { position: absolute; left: 0; top: 4px; width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 3px solid var(--blue-600); box-shadow: 0 0 0 4px rgba(30,120,212,.12); }
.timeline .t-body b { font-family: var(--font-serif); color: var(--navy-900); font-size: 1.05rem; }
.timeline .t-body p { margin: .25rem 0 0; color: var(--slate); font-size: .95rem; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--navy-900); color: #B9CCE0; padding-block: 3.5rem 2rem; }
.site-footer h4 { color: #fff; font-family: var(--font-sans); font-size: .82rem;
  letter-spacing: .1em; text-transform: uppercase; margin: 0 0 1rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 2rem; }
.site-footer a { color: #B9CCE0; }
.site-footer a:hover { color: #fff; }
.site-footer .fbrand { display: flex; align-items: center; gap: .6rem; color: #fff;
  font-family: var(--font-serif); font-weight: 700; font-size: 1.25rem; margin-bottom: .8rem; }
.site-footer .fbrand .mark { width: 32px; height: 32px; }
.site-footer .full { font-size: .9rem; color: #8AA6C4; max-width: 40ch; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: .45em 0; font-size: .94rem; }
.footer-cta { display: grid; gap: .6rem; }
.footer-cta a { display: block; padding: .7em 1em; border: 1px solid rgba(255,255,255,.15);
  border-radius: 10px; font-size: .92rem; transition: .15s; }
.footer-cta a:hover { background: rgba(255,255,255,.07); border-color: var(--cyan-400); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 2.5rem; padding-top: 1.4rem;
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; font-size: .85rem; color: #7C97B5; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 920px) {
  .cols-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .values { grid-template-columns: repeat(2, 1fr); }
  .values .v { border-right: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
}
@media (max-width: 680px) {
  body { font-size: 16px; }
  .cols-2, .cols-3, .cols-4, .compare, .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .stats, .values { grid-template-columns: 1fr 1fr; }
  .roadmap .phase { grid-template-columns: 1fr; gap: .4rem; }
}

/* ==========================================================================
   Print
   ========================================================================== */
@media print {
  :root { --canvas: #fff; --canvas-2: #fff; }
  body { background: #fff; color: #000; font-size: 11pt; }
  .site-header, .site-footer, .skip-link, .nav-toggle, .hero::after,
  .btn, .cta-row, .footer-cta, .nav-dd { display: none !important; }
  .hero, .page-hero, .section--navy, .callout {
    background: #fff !important; color: #000 !important; }
  .hero h1, .page-hero h1, .section--navy h2, .section--navy h3,
  .callout .q, h1, h2, h3, h4 { color: #000 !important; }
  .hero .definition, .hero .tagline, .hero .zh, .page-hero p,
  .section--navy p, .lead, p { color: #1a1a1a !important; }
  .card, .accordion, .values, .stat, .pipeline .step, .timeline .dot {
    box-shadow: none !important; border-color: #bbb !important; }
  .section { padding-block: 1.2rem !important; }
  .accordion details { break-inside: avoid; }
  .accordion details:not([open]) .body { display: block; } /* expand all for print */
  .card, .pipeline .step, .stat, article { break-inside: avoid; }
  a { color: #000; text-decoration: underline; }
  /* show URLs for external links */
  main a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .85em; color: #555; }
  .reveal { opacity: 1 !important; transform: none !important; }
  .readiness .bar > i { width: var(--print-w, 100%); }
}

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}