/* ═══════════════════════════════════════════════
   AERIAL OPERATIONS — Design System Compartit
   ═══════════════════════════════════════════════ */

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: #0A0B0C;
  color: #EDEEEF;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, video { display: block; max-width: 100%; }

/* ─── TOKENS ─── */
:root {
  --bg: #0A0B0C;
  --bg-alt: #14171A;
  --bg-card: #1B1E22;
  --ink: #EDEEEF;
  --ink-secondary: #8B9195;
  --border: rgba(255,255,255,.08);
  --accent: #6FA8C7;
  --display: 'Familjen Grotesk', -apple-system, sans-serif;
  --mono: 'Roboto Mono', monospace;
  --sans: 'Inter', -apple-system, sans-serif;
  --nav-h: 64px;
  --ease: cubic-bezier(.4,0,.2,1);
}

/* ─── EMPHASIS ─── */
em {
  font-style: normal;
  color: var(--accent);
}

/* ─── NAV ─── */
#nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(24px, 5vw, 64px);
  transition: background 500ms var(--ease), border-color 500ms var(--ease);
  border-bottom: 1px solid transparent;
}
#nav.solid,
#nav.always-solid {
  background: rgba(10,11,12,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--border);
}
.nav-logo {
  font-family: var(--mono);
  font-size: .74rem;
  font-weight: 400;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 48px;
  list-style: none;
}
.nav-links a {
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 400;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  transition: color 500ms var(--ease);
}
.nav-links a:hover { color: var(--ink); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--ink);
  transition: background 500ms var(--ease), transform .3s var(--ease), opacity .3s;
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .4s var(--ease), visibility 0s .4s;
}
.nav-overlay.open { opacity: 1; visibility: visible; pointer-events: all; transition: opacity .4s var(--ease); }
.nav-overlay a {
  font-family: var(--display);
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -.01em;
  transition: color .3s;
}
.nav-overlay a:hover { color: var(--accent); }

/* ─── COOKIE BANNER ─── */
#cookie-banner {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 200;
  background: rgba(10,11,12,.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  padding: 20px clamp(24px,5vw,64px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  transition: transform .5s var(--ease), opacity .5s;
}
#cookie-banner.hidden {
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}
.cookie-text {
  font-size: .78rem;
  color: var(--ink-secondary);
  line-height: 1.5;
  max-width: 600px;
}
.cookie-text a {
  color: var(--ink);
  border-bottom: 1px solid var(--border);
  transition: border-color .3s;
}
.cookie-text a:hover { border-color: var(--ink-secondary); }
.cookie-actions { display: flex; gap: 12px; flex-shrink: 0; }
.cookie-btn {
  font-family: var(--mono);
  font-size: .7rem;
  font-weight: 400;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 10px 22px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--ink-secondary);
  cursor: pointer;
  transition: background .3s, color .3s, border-color .3s;
}
.cookie-btn:hover { background: rgba(255,255,255,.05); color: var(--ink); border-color: var(--ink-secondary); }
.cookie-btn.accept { background: var(--accent); color: #0A0B0C; border-color: var(--accent); }
.cookie-btn.accept:hover { background: #83B6D1; }

/* ─── FOOTER ─── */
footer {
  padding: clamp(28px, 4vh, 40px) clamp(24px, 5vw, 80px);
  background: var(--bg);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-logo {
  font-family: var(--mono);
  font-size: .72rem;
  font-weight: 400;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ink);
}
.footer-links {
  display: flex;
  gap: 28px;
  list-style: none;
}
.footer-links a {
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  transition: color .3s;
}
.footer-links a:hover { color: var(--ink); }
.footer-copy {
  font-family: var(--mono);
  font-size: .68rem;
  color: var(--ink-secondary);
  letter-spacing: .05em;
}

/* ─── CTA WHATSAPP COMPARTIT ─── */
.cta-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: .74rem;
  font-weight: 400;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 16px 32px;
  background: var(--accent);
  color: #0A0B0C;
  border: 1px solid var(--accent);
  transition: background .3s, color .3s;
}
.btn-whatsapp:hover { background: transparent; color: var(--accent); }
.btn-whatsapp svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ─── CARRUSEL DE TREBALLS ─── */
.cat-carousel {
  padding: clamp(56px,8vh,96px) 0;
  border-top: 1px solid var(--border);
}
.cat-carousel-header {
  padding: 0 clamp(24px,5vw,80px);
  margin-bottom: clamp(24px,3vh,36px);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.cat-carousel-label {
  font-family: var(--mono);
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-secondary);
}
.cat-carousel-hint {
  font-family: var(--mono);
  font-size: .66rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: #3F4347;
}
.cat-carousel-track {
  display: flex;
  gap: clamp(6px,0.8vw,10px);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 0 clamp(24px,5vw,80px);
  scrollbar-width: none;
  -ms-overflow-style: none;
  cursor: grab;
}
.cat-carousel-track:active { cursor: grabbing; }
.cat-carousel-track::-webkit-scrollbar { display: none; }
.carousel-item {
  position: relative;
  flex-shrink: 0;
  height: clamp(320px,62vh,580px);
  aspect-ratio: 9/16;
  overflow: hidden;
  background: var(--bg-card);
  scroll-snap-align: start;
  display: block;
  transition: opacity .3s;
}
.carousel-item:hover { opacity: .88; }
.carousel-item video {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.carousel-ph {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--display);
  font-size: clamp(2rem,5vw,4.5rem);
  font-weight: 400;
  color: rgba(237,238,239,.08);
  letter-spacing: .1em;
}
.carousel-label {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: clamp(14px,2vw,22px);
  background: linear-gradient(to top, rgba(0,0,0,.65) 0%, transparent 100%);
}
.carousel-label-cat {
  display: block;
  font-family: var(--mono);
  font-size: .6rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: rgba(237,238,239,.5);
  margin-bottom: 4px;
}
.carousel-label-title {
  display: block;
  font-family: var(--display);
  font-size: clamp(.85rem,1.5vw,1.15rem);
  font-weight: 400;
  color: #F2F1EE;
  line-height: 1.2;
}

/* ─── FADE-IN ─── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.fade-up.delay-1 { transition-delay: .1s; }
.fade-up.delay-2 { transition-delay: .2s; }
.fade-up.delay-3 { transition-delay: .3s; }

/* ─── REDUCED MOTION ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* ─── RESPONSIVE NAV ─── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
}
@media (max-width: 480px) {
  footer { flex-direction: column; align-items: flex-start; gap: 16px; }
  .footer-links { flex-wrap: wrap; }
  .cookie-actions { width: 100%; }
  .cookie-btn { flex: 1; text-align: center; }
}