/* ==========================================================================
   KAI·FORGE — components (tema clar)
   Navegació, targetes, formularis, peu.
   ========================================================================== */

/* ==========================================================================
   NAVEGACIÓ
   ========================================================================== */
.nav-shell {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(251, 250, 247, 0.82);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease-tou), background 0.3s var(--ease-tou);
}

.nav-shell.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(251, 250, 247, 0.94);
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 72px;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-right: auto;
  flex-shrink: 0;
}

/* El símbol és el mateix; només l'entintem perquè es llegeixi sobre paper */
.brand svg { width: 24px; height: 24px; color: var(--lila); }
.brand .sep { color: var(--lila); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-right: 8px;
}

.nav-item { position: relative; }

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 9px 14px;
  border-radius: 9px;
  font-size: 16px;
  font-weight: 500;
  color: var(--ink-2);
  text-decoration: none;
  background: none;
  border: 0;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.25s var(--ease-tou), background 0.25s var(--ease-tou);
}

.nav-link:hover,
.nav-link[aria-expanded="true"] {
  color: var(--ink);
  background: rgba(22, 22, 29, 0.05);
}

.nav-link .caret {
  width: 12px;
  height: 12px;
  opacity: 0.6;
  transition: transform 0.3s var(--ease);
}

.nav-link[aria-expanded="true"] .caret { transform: rotate(180deg); }

.nav-cta {
  padding: 11px 20px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  background: var(--lila);
  text-decoration: none;
  box-shadow: var(--ombra-1);
  transition: background 0.25s var(--ease-tou), transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-cta:hover {
  background: var(--lila-fort);
  transform: translateY(-1px);
  box-shadow: var(--ombra-2);
}

/* ---------- Desplegable de solucions ---------- */
.mega {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  width: min(600px, calc(100vw - 40px));
  padding: 10px;
  border-radius: var(--r-l);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--ombra-3);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, -8px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
}

.nav-item.is-open .mega {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.mega-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
}

.mega-link {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border-radius: 12px;
  text-decoration: none;
  transition: background 0.25s var(--ease-tou);
}

.mega-link:hover { background: var(--paper-2); }

.mega-ico {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--lila-tou);
  color: var(--lila);
}

.mega-ico svg { width: 17px; height: 17px; }

.mega-name {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin-bottom: 1px;
}

.mega-desc {
  display: block;
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--ink-3);
}

.mega-foot {
  margin-top: 4px;
  padding: 14px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.mega-foot p { font-size: 14px; color: var(--ink-3); margin: 0; }

/* ---------- Mòbil ---------- */
.nav-burger {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1.5px solid var(--line-forta);
  background: transparent;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}

.nav-burger span {
  position: absolute;
  left: 12px;
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.35s var(--ease), opacity 0.2s var(--ease-tou);
}

.nav-burger span:nth-child(1) { top: 15px; }
.nav-burger span:nth-child(2) { top: 20px; }
.nav-burger span:nth-child(3) { top: 25px; }

.nav-burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.mobile-panel {
  position: fixed;
  inset: 72px 0 0;
  z-index: 999;
  background: var(--paper);
  padding: 24px var(--gutter) 40px;
  overflow-y: auto;
  overflow-x: hidden;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s var(--ease), visibility 0.3s;
}

.mobile-panel.is-open { opacity: 1; visibility: visible; }

.m-group { margin-bottom: 28px; }

.m-label {
  font-family: var(--mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  margin-bottom: 10px;
}

.m-list { display: grid; gap: 2px; }

.m-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 16px;
  border-radius: 12px;
  font-size: 18px;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}

.m-list a:last-child { border-bottom: 0; }
.m-list a:active { background: var(--paper-2); }

.m-list a .m-hint {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  min-width: 0;
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 940px) {
  .nav-menu, .nav > .nav-cta { display: none; }
  .nav-burger { display: block; }
}

/* ==========================================================================
   TARGETES
   ========================================================================== */
.card {
  position: relative;
  border-radius: var(--r-l);
  border: 1px solid var(--line);
  background: var(--card);
  padding: 30px;
  transition: transform 0.4s var(--ease), border-color 0.3s var(--ease-tou),
              box-shadow 0.4s var(--ease);
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--line-forta);
  box-shadow: var(--ombra-2);
}

.panel {
  position: relative;
  border-radius: var(--r-l);
  border: 1px solid var(--line);
  background: var(--card);
  box-shadow: var(--ombra-2);
  overflow: hidden;
}

/* ==========================================================================
   FORMULARIS
   ========================================================================== */
.field { display: grid; gap: 8px; }

.field label {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
}

.field .hint {
  font-size: 14px;
  font-weight: 400;
  color: var(--ink-3);
}

.field input,
.field textarea {
  width: 100%;
  background: var(--card);
  border: 1.5px solid var(--line-forta);
  border-radius: var(--r-s);
  padding: 14px 16px;
  font-size: 17px;
  font-family: var(--sans);
  color: var(--ink);
  transition: border-color 0.2s var(--ease-tou), box-shadow 0.2s var(--ease-tou);
}

.field input::placeholder,
.field textarea::placeholder { color: var(--ink-3); }

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--lila);
  box-shadow: 0 0 0 4px var(--lila-tou);
}

.field input:focus-visible,
.field textarea:focus-visible { outline: none; }

.field textarea { resize: vertical; min-height: 132px; line-height: 1.6; }

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-note { font-size: 14px; color: var(--ink-3); line-height: 1.55; }

.form-status {
  font-size: 16px;
  font-weight: 500;
  line-height: 1.5;
}

.form-status.ok { color: var(--verd); }
.form-status.err { color: var(--ambre); }

/* ==========================================================================
   PEU
   ========================================================================== */
.site-footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--line);
  padding-block: 64px 32px;
  background: var(--paper-2);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand { max-width: 300px; }
.footer-brand .brand { margin: 0 0 14px; }

.footer-tagline {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.6;
  margin-bottom: 20px;
}

.socials { display: flex; gap: 8px; }

.socials a {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  border: 1.5px solid var(--line);
  background: var(--card);
  color: var(--ink-2);
  transition: color 0.25s var(--ease-tou), border-color 0.25s var(--ease-tou),
              transform 0.3s var(--ease);
}

.socials a:hover { color: var(--lila); border-color: var(--lila-vora); transform: translateY(-2px); }
.socials svg { width: 16px; height: 16px; }

.footer-col h3 {
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-3);
  margin-bottom: 16px;
}

.footer-col ul { display: grid; gap: 11px; }

.footer-col a {
  font-size: 15px;
  color: var(--ink-2);
  text-decoration: none;
  transition: color 0.25s var(--ease-tou);
}

.footer-col a:hover { color: var(--lila); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--ink-3);
}

.footer-bottom nav { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-bottom a { text-decoration: none; transition: color 0.25s var(--ease-tou); }
.footer-bottom a:hover { color: var(--ink-2); }

@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; max-width: none; }
}

@media (max-width: 560px) {
  .footer-bottom { flex-direction: column; text-align: center; }
  .field-row { grid-template-columns: 1fr; }
}