/* ─────────────────────────────────────────
   DreamGIS v2 — Shared Components
   Buttons · Nav · Footer · Carousel arrows
───────────────────────────────────────── */

/* ═══════════════════════════════
   BUTTONS
═══════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-xs);
  font-family: var(--font);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.16px;
  padding: 0 var(--sp-xl);
  height: 48px;
  border-radius: var(--r-md);
  border: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition:
    background-color var(--tr-color),
    color var(--tr-color),
    border-color var(--tr-color),
    opacity var(--tr-color);
  text-decoration: none;
}
.btn--pill { border-radius: var(--r-full); }
.btn--sm   { font-size: 14px; letter-spacing: 0.14px; height: 38px; padding: 0 var(--sp-base); }

/* Primary */
.btn--primary {
  background: var(--primary);
  color: var(--on-dark);
  border-color: var(--primary);
}
.btn--primary:hover  { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn--primary:active { background: var(--primary-active); border-color: var(--primary-active); }
.btn--primary:disabled { background: var(--primary-disabled); border-color: var(--primary-disabled); cursor: not-allowed; }

/* Secondary / outline on light */
.btn--outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn--outline:hover { background: var(--primary-subtle); }

/* Outline on dark bg */
.btn--outline-dark {
  background: transparent;
  color: var(--navy-1);
  border-color: var(--navy-1);
}
.btn--outline-dark:hover { background: rgba(11,7,33,.08); }

/* Outline white (on dark sections) */
.btn--outline-white {
  background: transparent;
  color: var(--on-dark);
  border-color: rgba(255,255,255,.6);
}
.btn--outline-white:hover { background: rgba(255,255,255,.1); border-color: var(--on-dark); }

/* Ghost */
.btn--ghost {
  background: transparent;
  color: var(--primary);
  border-color: transparent;
  padding-inline: 0;
}
.btn--ghost:hover { opacity: 0.75; }

/* Ver (small, for project cards on dark) */
.btn--ver {
  background: transparent;
  color: var(--on-dark);
  border-color: rgba(255,255,255,.35);
  font-size: 14px;
  height: 36px;
  padding: 0 var(--sp-base);
  border-radius: var(--r-md);
  border-width: 1px;
}
.btn--ver:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.65); }


/* ═══════════════════════════════
   TOP NAV
═══════════════════════════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--nav-h);
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline-soft);
  transition:
    background var(--tr-color),
    border-color var(--tr-color),
    box-shadow var(--tr-shadow);
}

.nav.scrolled {
  box-shadow: 0 2px 12px rgba(0,0,0,.08);
}

.nav.transparent {
  background: transparent;
  border-bottom-color: transparent;
  box-shadow: none;
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
  height: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* Logo */
.nav__logo { flex-shrink: 0; }
.nav__logo img {
  height: 30px;
  width: auto;
  transition: filter var(--tr-color);
}
.nav.transparent .nav__logo img {
  filter: brightness(0) invert(1);
}

/* Links */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--sp-xl);
  margin-left: auto;
}

.nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  transition: color var(--tr-color);
  position: relative;
  padding-block: 4px;
}
.nav__link:hover  { color: var(--on-canvas); }
.nav__link.active { color: var(--primary); font-weight: 600; }

.nav.transparent .nav__link        { color: rgba(255,255,255,.75); }
.nav.transparent .nav__link:hover  { color: var(--on-dark); }
.nav.transparent .nav__link.active { color: var(--on-dark); }

/* Actions (lang + CTA) */
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  margin-left: var(--sp-md);
}

/* Lang switcher */
.lang-sw {
  display: flex;
  align-items: center;
  gap: 2px;
  border-radius: var(--r-sm);
  overflow: hidden;
}
.lang-sw__btn {
  font-family: var(--font);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--muted);
  padding: 4px 7px;
  border-radius: var(--r-xs);
  transition: color var(--tr-color), background var(--tr-color);
  line-height: 1;
}
.lang-sw__btn:hover  { color: var(--on-canvas); background: var(--surface-soft); }
.lang-sw__btn.active { color: var(--primary); }
.nav.transparent .lang-sw__btn        { color: rgba(255,255,255,.65); }
.nav.transparent .lang-sw__btn.active { color: var(--on-dark); }
.lang-sw__sep {
  font-size: 10px;
  color: var(--hairline);
  user-select: none;
}
.nav.transparent .lang-sw__sep { color: rgba(255,255,255,.3); }

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  margin-left: auto;
  border-radius: var(--r-sm);
}
.nav__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--on-canvas);
  border-radius: 1px;
  transition: all 220ms ease;
  transform-origin: center;
}
.nav.transparent .nav__hamburger span { background: var(--on-dark); }

/* Mobile drawer */
.nav__drawer {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--canvas);
  border-bottom: 1px solid var(--hairline-soft);
  padding: var(--sp-lg) var(--pad-x);
  z-index: 199;
  flex-direction: column;
  gap: var(--sp-base);
  box-shadow: 0 8px 24px rgba(0,0,0,.1);
}
.nav__drawer.open { display: flex; }
.nav__drawer .nav__link { font-size: 16px; color: var(--on-canvas); }
.nav__drawer .nav__link.active { color: var(--primary); }
.nav__drawer .nav__actions {
  margin-left: 0;
  margin-top: var(--sp-sm);
  padding-top: var(--sp-base);
  border-top: 1px solid var(--hairline-soft);
}


/* ═══════════════════════════════
   CAROUSEL ARROWS
═══════════════════════════════ */
.c-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--r-full);
  border: 1.5px solid currentColor;
  font-size: 20px;
  line-height: 1;
  transition: background var(--tr-color), opacity var(--tr-color);
}
.c-arrow:disabled { opacity: 0.35; cursor: default; }

.c-arrow--dark  { color: var(--on-canvas); }
.c-arrow--dark:hover:not(:disabled)  { background: rgba(11,7,33,.08); }

.c-arrow--light { color: var(--on-dark); }
.c-arrow--light:hover:not(:disabled) { background: rgba(255,255,255,.1); }


/* ═══════════════════════════════
   FOOTER
═══════════════════════════════ */
.footer {
  background: var(--canvas);
  border-top: 1px solid var(--hairline-soft);
}

.footer__main {
  display: grid;
  grid-template-columns: 220px 1fr auto;
  gap: var(--sp-xxl);
  align-items: start;
  padding-block: 56px;
}

.footer__logo img { height: 36px; width: auto; }

.footer__nav {
  display: flex;
  gap: var(--sp-xxl);
}

.footer__col-head {
  display: block;
  font-size: 16px;
  font-weight: 500;
  color: var(--on-canvas);
  margin-bottom: var(--sp-lg);
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col a {
  font-size: 14px;
  font-weight: 400;
  color: var(--muted-soft);
  transition: color var(--tr-color);
}
.footer__col a:hover { color: var(--on-canvas); }

.footer__cta {
  display: flex;
  align-items: flex-start;
}

/* Legal band */
.footer__legal {
  display: flex;
  align-items: center;
  gap: var(--sp-xl);
  padding-block: var(--sp-lg);
  border-top: 1px solid var(--hairline-soft);
}

.footer__legal > a {
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
  transition: color var(--tr-color);
}
.footer__legal > a:hover { color: var(--on-canvas); }

.footer__social { margin-left: auto; }
.footer__social a {
  display: flex;
  align-items: center;
  opacity: 0.7;
  transition: opacity var(--tr-color);
}
.footer__social a:hover { opacity: 1; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .nav__links  { display: none; }
  .nav__hamburger { display: flex; }
  .nav__actions > .btn { display: none; }

  .footer__main {
    grid-template-columns: 1fr;
    gap: var(--sp-xl);
    padding-block: var(--sp-xl);
  }
  .footer__cta { align-items: flex-start; }
}

@media (max-width: 640px) {
  .footer__nav { flex-direction: column; gap: var(--sp-xl); }
  .footer__legal { flex-wrap: wrap; gap: var(--sp-md); }
  .footer__social { margin-left: 0; }
}