/* =========================================================
   K-OS 5.2.0 — Drop-in application foundation
========================================================= */

:root{
  --kos-ink:#15372f;
  --kos-muted:#66756f;
  --kos-paper:#fffaf1;
  --kos-cream:#f7ecd9;
  --kos-line:rgba(21,55,47,.14);
  --kos-accent:#1f6f55;
  --kos-shadow:0 16px 42px rgba(21,55,47,.10);
  --kos-radius:24px;
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}

*{
  box-sizing:border-box;
}

html{
  scroll-behavior:smooth;
}

body.kos-body{
  margin:0;
  min-height:100vh;
  background:var(--kos-paper);
  color:var(--kos-ink);
}

.kos-skip-link{
  position:absolute;
  left:12px;
  top:-80px;
  z-index:1000;
  padding:10px 14px;
  border-radius:10px;
  background:#ffffff;
  color:var(--kos-ink);
}

.kos-skip-link:focus{
  top:12px;
}

.kos-app-header{
  position:sticky;
  top:0;
  z-index:50;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
  min-height:78px;
  padding:14px clamp(18px,4vw,56px);
  background:rgba(255,250,241,.94);
  border-bottom:1px solid var(--kos-line);
  backdrop-filter:blur(16px);
}

.kos-app-brand{
  display:flex;
  align-items:center;
  min-width:0;
  gap:12px;
  color:inherit;
  text-decoration:none;
}

.kos-app-brand-icon{
  display:grid;
  place-items:center;
  flex:0 0 auto;
}

.kos-app-brand-copy{
  min-width:0;
}

.kos-app-brand-copy strong,
.kos-app-brand-copy small{
  display:block;
}

.kos-app-brand-copy strong{
  font-size:1.08rem;
  line-height:1.1;
  overflow-wrap:anywhere;
}

.kos-app-brand-copy small{
  margin-top:3px;
  color:var(--kos-muted);
  font-size:.82rem;
}

.kos-global-nav{
  display:flex;
  align-items:center;
  gap:20px;
}

.kos-global-nav a{
  color:var(--kos-ink);
  font-size:.95rem;
  font-weight:800;
  text-decoration:none;
}

.kos-global-nav a:hover,
.kos-global-nav a:focus-visible{
  color:var(--kos-accent);
}

.kos-menu-button{
  display:none;
  padding:10px 14px;
  border:1px solid var(--kos-line);
  border-radius:999px;
  background:#ffffff;
  color:var(--kos-ink);
  font:inherit;
  font-weight:800;
}

.kos-main{
  min-height:60vh;
}

.kos-footer{
  padding:40px clamp(18px,5vw,72px);
  background:#102b25;
  color:#ffffff;
  text-align:center;
}

.kos-footer-inner{
  max-width:920px;
  margin:0 auto;
}

.kos-footer p{
  margin:0 0 8px;
  line-height:1.55;
}

.kos-footer a{
  color:#f4ca72;
}

.kos-footer-copyright{
  margin-top:18px!important;
  color:rgba(255,255,255,.72);
  font-size:.9rem;
}

@media(max-width:820px){
  .kos-app-header{
    align-items:flex-start;
    flex-wrap:wrap;
  }

  .kos-menu-button{
    display:inline-flex;
  }

  .kos-global-nav{
    display:none;
    width:100%;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding-top:8px;
  }

  .kos-global-nav.is-open{
    display:flex;
  }

  .kos-global-nav a{
    padding:13px 0;
    border-top:1px solid var(--kos-line);
  }
}

/* K-OS 5.4 — centralized PWA installation */
.kos-install-button,
[data-kos-install] {
  appearance: none;
  border: 1px solid rgba(21, 50, 38, 0.16);
  border-radius: 999px;
  padding: 11px 18px;
  background: #ffffff;
  color: #153226;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.kos-install-button:hover,
[data-kos-install]:hover {
  background: #edf5ee;
}

.kos-install-dialog {
  width: min(92vw, 440px);
  border: 0;
  border-radius: 24px;
  padding: 0;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.22);
}

.kos-install-dialog::backdrop {
  background: rgba(13, 26, 21, 0.62);
}

.kos-install-dialog-inner {
  position: relative;
  padding: 32px;
  background: #fffaf1;
  color: #153226;
}

.kos-install-dialog-inner h2 {
  margin: 0 36px 12px 0;
}

.kos-install-dialog-inner p {
  margin: 0;
  line-height: 1.55;
}

.kos-install-dialog-close {
  position: absolute;
  top: 14px;
  right: 16px;
  border: 0;
  background: transparent;
  font-size: 30px;
  cursor: pointer;
}

.kos-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

@media (max-width: 760px) {
  .kos-header-actions {
    gap: 8px;
  }

  .kos-header-actions [data-kos-install] {
    max-width: 104px;
    padding-inline: 11px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}