/* ============================================================
   LSI COMPONENTS
   Reusable building blocks — buttons, cards, badges, header, footer
   ============================================================ */

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.5rem;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  line-height: 1;
  text-decoration: none;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}

.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--ls-teal-500);
  color: var(--ls-navy-900);
  border-color: var(--ls-teal-500);
}
.btn--primary:hover {
  background: var(--ls-teal-400);
  border-color: var(--ls-teal-400);
  color: var(--ls-navy-900);
}

.btn--dark {
  background: var(--ls-navy-900);
  color: var(--ls-white);
  border-color: var(--ls-navy-900);
}
.btn--dark:hover {
  background: var(--ls-navy-800);
  border-color: var(--ls-navy-800);
  color: var(--ls-white);
}

.btn--secondary {
  background: transparent;
  color: var(--ls-navy-900);
  border-color: var(--ls-navy-900);
}
.btn--secondary:hover {
  background: var(--ls-navy-900);
  color: var(--ls-white);
}

.btn--inverse {
  background: transparent;
  color: var(--ls-white);
  border-color: rgba(255, 255, 255, 0.4);
}
.btn--inverse:hover {
  background: var(--ls-white);
  color: var(--ls-navy-900);
  border-color: var(--ls-white);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  padding-inline: 0;
  border: 0;
}
.btn--ghost:hover { color: var(--color-accent-hover); }

.btn--sm { padding: 0.55rem 1rem; font-size: var(--fs-sm); }
.btn--lg { padding: 1.05rem 1.75rem; font-size: var(--fs-lg); }

.btn svg { width: 16px; height: 16px; }

/* ============================================================
   BADGES & TAGS
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.3rem 0.7rem;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-xs);
  background: var(--ls-gray-100);
  color: var(--ls-gray-800);
  text-decoration: none;
}

.badge--topic {
  background: transparent;
  border: 1px solid currentColor;
}
/* Topic badges stay navy for readability; the colored accent appears
   elsewhere in the card (border, icon fill, hex motif). */
.badge--housing { color: var(--ls-navy-900); }
.badge--employee-ownership { color: var(--ls-navy-900); }
.badge--job-quality { color: var(--ls-navy-900); }
.badge--economic-mobility { color: var(--ls-navy-900); }
.badge--ai-technology { color: var(--ls-navy-900); }

.badge--type {
  background: var(--ls-navy-900);
  color: var(--ls-white);
}

.badge--dot::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}


/* Topic tag (inline filter / link) */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--ls-gray-700);
  background: var(--ls-gray-100);
  border-radius: var(--radius-pill);
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}
.tag:hover {
  background: var(--ls-navy-900);
  color: var(--ls-white);
  text-decoration: none;
}

/* ============================================================
   LSI LOGO (inline SVG — swap with official asset)
   ============================================================ */
.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: inherit;
  font-family: var(--font-sans);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-snug);
  line-height: 1.1;
}
.logo__mark { width: 40px; height: 40px; flex-shrink: 0; }
.logo__text {
  display: flex;
  flex-direction: column;
  font-size: 0.82rem;
  font-weight: var(--fw-semibold);
  color: inherit;
}
.logo__text span:first-child { letter-spacing: var(--tracking-tight); }
.logo__text span:last-child {
  font-size: 0.72rem;
  font-weight: var(--fw-regular);
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}
.section--dark .logo__text span:last-child { color: var(--color-text-inverse-muted); }

/* Wordmark variant (official SVG logo) */
.logo--wordmark { gap: 0; }
.logo__wordmark {
  display: block;
  height: 36px;
  width: auto;
  max-width: 240px;
}
.is-compact .logo__wordmark { height: 30px; }
.logo--wordmark-lg .logo__wordmark { height: 48px; }
@media (max-width: 640px) {
  .logo__wordmark { height: 30px; }
  .logo--wordmark-lg .logo__wordmark { height: 40px; }
}

/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(250, 250, 247, 0.92);
  backdrop-filter: saturate(150%) blur(12px);
  -webkit-backdrop-filter: saturate(150%) blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: padding var(--dur-base) var(--ease-out);
}

.site-header__inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: 1.15rem;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-7);
}
.nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}
.nav__link {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  text-decoration: none;
  padding-block: var(--space-2);
  position: relative;
  letter-spacing: var(--tracking-snug);
}
.nav__link[aria-expanded="true"]::after,
.nav__link:hover::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--ls-teal-500);
}
.nav__link--caret::before {
  content: '';
  display: inline-block;
  width: 0; height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  margin-right: 0.5em;
  opacity: 0.5;
  transform: translateY(-2px);
}

/* ---------- Nav dropdown submenu ---------- */
.nav__item {
  position: relative;
}
.nav__submenu {
  position: absolute;
  top: calc(100% + 8px);
  left: -12px;
  min-width: 180px;
  background: var(--ls-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 32px -12px rgba(15, 23, 42, 0.18);
  padding: var(--space-2);
  list-style: none;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition:
    opacity var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out),
    visibility 0s linear var(--dur-fast);
  z-index: 50;
}
.nav__item--has-menu:hover > .nav__submenu,
.nav__item--has-menu:focus-within > .nav__submenu,
.nav__item--has-menu > .nav__link[aria-expanded="true"] + .nav__submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition-delay: 0s;
}
.nav__sublink {
  display: block;
  padding: var(--space-2) var(--space-3);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-sm);
  letter-spacing: var(--tracking-snug);
  white-space: nowrap;
}
.nav__sublink:hover,
.nav__sublink:focus-visible {
  background: var(--ls-gray-100);
  color: var(--ls-navy-900);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  color: var(--color-text);
  transition: background var(--dur-fast) var(--ease-out);
}
.icon-btn:hover { background: var(--ls-gray-100); }
.icon-btn svg { width: 18px; height: 18px; }

.nav__mobile-toggle { display: none; }

@media (max-width: 1024px) {
  .nav__list { display: none; }
  .nav__mobile-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border-radius: var(--radius-sm);
  }

  /* Mobile menu: full-width panel below the header when open */
  .nav__list.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--ls-white);
    border-top: 1px solid var(--color-border);
    box-shadow: 0 16px 32px -12px rgba(15, 23, 42, 0.18);
    padding: var(--space-4) var(--space-5) var(--space-6);
    gap: var(--space-2);
    z-index: 100;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  .nav__list.is-open .nav__item {
    position: static;
  }
  .nav__list.is-open .nav__link {
    display: block;
    padding: var(--space-3) var(--space-2);
    font-size: var(--fs-base);
    border-bottom: 1px solid var(--color-border);
  }
  .nav__list.is-open .nav__submenu {
    position: static;
    display: block;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: none;
    box-shadow: none;
    border: 0;
    border-radius: 0;
    background: var(--ls-gray-050, #F5F5F2);
    padding: var(--space-2) 0 var(--space-3) var(--space-5);
    margin: 0 0 var(--space-3);
    min-width: 0;
  }
  /* Collapsed-by-default: only show submenu when parent link has
     aria-expanded="true" (click toggle sets this). */
  .nav__list.is-open .nav__item--has-menu > .nav__submenu { display: none; }
  .nav__list.is-open .nav__item--has-menu > .nav__link[aria-expanded="true"] + .nav__submenu { display: block; }
  .nav__list.is-open .nav__sublink {
    font-size: var(--fs-sm);
    padding: var(--space-2) var(--space-2);
  }
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
  text-decoration: none;
  color: inherit;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--ls-gray-300);
  text-decoration: none;
}

.card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--ls-gray-100);
  overflow: hidden;
}
.card__media--tall { aspect-ratio: 4 / 5; }
.card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}
.card:hover .card__media img { transform: scale(1.03); }

.card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-5) var(--space-6);
  flex-grow: 1;
}

.card__meta-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
}

.card__title {
  font-family: var(--font-sans);
  font-size: var(--fs-xl);
  line-height: var(--lh-snug);
  font-weight: var(--fw-medium);
  color: var(--color-text);
  letter-spacing: var(--tracking-snug);
}
.card__title--lg { font-size: var(--fs-2xl); }

.card__excerpt {
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
  color: var(--color-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card__footer {
  margin-top: auto;
  padding-top: var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
}

/* Feature card (flagship, 2-column) */
.card--feature { flex-direction: row; }
.card--feature .card__media { aspect-ratio: auto; flex: 1; }
.card--feature .card__body { flex: 1; padding: var(--space-8); }
.card--feature .card__title { font-size: var(--fs-3xl); }

@media (max-width: 900px) {
  .card--feature { flex-direction: column; }
  .card--feature .card__media { aspect-ratio: 16 / 10; }
  .card--feature .card__body { padding: var(--space-6); }
  .card--feature .card__title { font-size: var(--fs-2xl); }
}

/* Bare / minimal card */
.card--bare {
  background: transparent;
  border: 0;
  border-radius: 0;
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-5);
}
.card--bare:hover { transform: none; box-shadow: none; border-color: transparent; border-top-color: var(--ls-navy-900); }
.card--bare .card__body { padding: 0; }

/* ============================================================
   FORMS
   ============================================================ */
.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field__label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-text);
}

.input, .textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--fs-base);
  color: var(--color-text);
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.input::placeholder, .textarea::placeholder { color: var(--color-text-subtle); }
.input:focus, .textarea:focus {
  outline: none;
  border-color: var(--ls-teal-500);
  box-shadow: 0 0 0 3px var(--ls-teal-200);
}
.textarea { min-height: 120px; resize: vertical; }

.form-inline {
  display: flex;
  gap: var(--space-2);
  max-width: 480px;
}
.form-inline .input { flex: 1; }
.form-inline .btn { flex-shrink: 0; }

@media (max-width: 480px) {
  .form-inline { flex-direction: column; }
}

/* ============================================================
   HEXAGON MOTIF UTILITY
   Used per brand guidelines as a compositional element.
   ============================================================ */
.hexagon {
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  aspect-ratio: 1 / 1.155; /* regular hexagon */
}
.hexagon-mask {
  -webkit-mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 115.47'><polygon points='50,0 100,28.87 100,86.6 50,115.47 0,86.6 0,28.87'/></svg>");
  mask-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 115.47'><polygon points='50,0 100,28.87 100,86.6 50,115.47 0,86.6 0,28.87'/></svg>");
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}

/* Diagonal line pattern — second brand motif */
.diagonal-pattern {
  background-image: repeating-linear-gradient(
    135deg,
    currentColor 0,
    currentColor 1px,
    transparent 1px,
    transparent 10px
  );
  opacity: 0.4;
}

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  color: var(--color-text-muted);
  list-style: none;
}
.breadcrumb li { display: flex; align-items: center; gap: var(--space-2); }
.breadcrumb li + li::before {
  content: '/';
  color: var(--color-text-subtle);
}
.breadcrumb a { color: var(--color-text-muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--color-accent-hover); }
.breadcrumb [aria-current="page"] { color: var(--color-text); }

/* ============================================================
   STAT STRIP
   ============================================================ */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
  padding: var(--space-8) 0;
  border-block: 1px solid var(--color-border-inverse);
}
.stat__value {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-regular);
  line-height: 1;
  letter-spacing: var(--tracking-tight);
  color: var(--ls-teal-400);
}
.stat__label {
  margin-top: var(--space-3);
  font-size: var(--fs-sm);
  line-height: var(--lh-normal);
  color: var(--color-text-inverse-muted);
  max-width: 22ch;
}

/* ============================================================
   SITE FOOTER
   ============================================================ */
.site-footer {
  background: var(--ls-navy-900);
  color: var(--color-text-inverse);
  padding-block: var(--space-10) var(--space-6);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute;
  top: -120px; right: -120px;
  width: 420px; height: 485px;
  background: var(--ls-teal-500);
  opacity: 0.06;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  pointer-events: none;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-8);
  position: relative;
}
@media (max-width: 900px) { .footer__grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer__grid { grid-template-columns: 1fr; } }

.footer__mission {
  font-size: var(--fs-base);
  line-height: var(--lh-relaxed);
  color: var(--color-text-inverse-muted);
  max-width: 38ch;
  margin-top: var(--space-4);
}

.footer__heading {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--ls-teal-400);
  margin-bottom: var(--space-4);
}

.footer__list { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.footer__list a {
  color: var(--color-text-inverse);
  text-decoration: none;
  font-size: var(--fs-sm);
}
.footer__list a:hover { color: var(--ls-teal-400); }

.footer__bottom {
  margin-top: var(--space-9);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-inverse);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--fs-xs);
  color: var(--color-text-inverse-muted);
  position: relative;
}
.footer__legal { display: flex; gap: var(--space-5); flex-wrap: wrap; }
.footer__legal a { color: var(--color-text-inverse-muted); text-decoration: none; }
.footer__legal a:hover { color: var(--ls-teal-400); }

/* ============================================================
   SUBSCRIBE / NEWSLETTER BLOCK
   ============================================================ */
.subscribe {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.subscribe__heading {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-text-inverse);
}
.subscribe__note {
  font-size: var(--fs-xs);
  color: var(--color-text-inverse-muted);
}
.subscribe .input {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--ls-white);
}
.subscribe .input::placeholder { color: rgba(255, 255, 255, 0.4); }
.subscribe .input:focus {
  border-color: var(--ls-teal-400);
  box-shadow: 0 0 0 3px rgba(77, 213, 199, 0.25);
}

/* ============================================================
   CTA BLOCK (on-page inline CTA)
   ============================================================ */
.cta-block {
  padding: var(--space-9) var(--space-8);
  background: var(--ls-navy-900);
  color: var(--ls-white);
  border-radius: var(--radius-lg);
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-8);
  align-items: center;
  position: relative;
  overflow: hidden;
}
.cta-block::after {
  content: '';
  position: absolute;
  right: -60px; top: 50%;
  transform: translateY(-50%);
  width: 280px; height: 324px;
  background: var(--ls-teal-500);
  opacity: 0.08;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}
.cta-block > * { position: relative; z-index: 1; }
.cta-block__heading {
  font-size: var(--fs-2xl);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-snug);
}
.cta-block__body { color: var(--color-text-inverse-muted); margin-top: var(--space-3); }

@media (max-width: 820px) {
  .cta-block { grid-template-columns: 1fr; padding: var(--space-7) var(--space-6); }
}