/* ==========================================================================
   LAYOUT — navbar, hero, footer, WhatsApp float, back-to-top
   ========================================================================== */

/* ---------------- Navbar ---------------- */
.navbar {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease),
    box-shadow var(--dur-med) var(--ease);
}

.navbar.is-scrolled {
  background: color-mix(in srgb, var(--bg-0) 88%, transparent);
  backdrop-filter: blur(14px);
  border-color: var(--line);
  box-shadow: var(--shadow-sm);
}

.navbar .container {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-0);
  flex-shrink: 0;
  line-height: 1;
}

.nav-brand img,
.nav-logo {
  height: 68px;
  width: auto;
  display: block;
  vertical-align: middle;
  border-radius: 8px;
  margin-right: 8px;
  /* The source file has a flat white background baked in — multiply
     blend makes pure white pixels take on whatever's behind them
     (navbar background), so it reads as transparent instead of a
     pasted-on box. Only the logo's actual ink/color stays visible. */
  mix-blend-mode: multiply;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  backface-visibility: hidden;
  transform: translateZ(0);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  margin: 0 auto;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-1);
  padding-block: var(--sp-2);
  transition: color 250ms var(--ease) 120ms;
}

.nav-links a:hover { color: var(--accent); }

.nav-links a.active { color: var(--accent); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}

.nav-close-item { display: none; }

.nav-overlay { display: none; }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-2);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.nav-toggle span {
  width: 18px;
  height: 2px;
  background: var(--text-0);
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------------- "Watches" nav dropdown ---------------- */
.nav-item-dropdown { position: relative; }

.nav-dropdown-trigger {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  background: none;
  border: none;
  padding-inline: 0;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-1);
  padding-block: var(--sp-2);
  transition: color 250ms var(--ease) 120ms;
}
.nav-dropdown-trigger:hover { color: var(--accent); }
.nav-dropdown-trigger.active { color: var(--accent); }
.nav-dropdown-trigger .chevron { transition: transform var(--dur-fast) var(--ease); }
.nav-item-dropdown.is-open .nav-dropdown-trigger .chevron,
.nav-item-dropdown:hover .nav-dropdown-trigger .chevron { transform: rotate(180deg); }

/* IMPORTANT: top is exactly 100% (no gap) — a gap here would create a
   dead zone the cursor has to cross between the trigger and the panel,
   breaking :hover the moment the pointer left the trigger. The visual
   breathing room comes from padding-top INSIDE the panel instead, which
   stays part of the hoverable element. */
.nav-dropdown-panel {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 180px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--sp-2);
  margin-top: var(--sp-2);
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease);
  z-index: 110;
}
/* Invisible bridge covering the visual gap so it's still part of the
   hoverable area — cursor never leaves .nav-item-dropdown in transit. */
.nav-dropdown-panel::before {
  content: '';
  position: absolute;
  left: 0; right: 0;
  top: calc(-1 * var(--sp-2));
  height: var(--sp-2);
}
.nav-item-dropdown:hover .nav-dropdown-panel,
.nav-item-dropdown.is-open .nav-dropdown-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-dropdown-link {
  display: block;
  padding: 0.6rem 1rem;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--text-1);
  white-space: nowrap;
  transition: color 250ms var(--ease) 120ms;
}
.nav-dropdown-link:hover { color: var(--accent); }

/* NOTE: Hero styles live in css/home.css — hero only appears on the
   Home page, so it ships as page-specific CSS, not shared layout. */

/* ---------------- Footer ---------------- */
.footer {
  background: var(--bg-1);
  border-top: 1px solid var(--line);
  padding-block: var(--sp-7) var(--sp-4);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--sp-6);
  padding-bottom: var(--sp-6);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  color: var(--text-0);
  margin-bottom: var(--sp-3);
}
.footer-brand img,
.footer-logo {
  height: 40px;
  width: auto;
  border-radius: 6px;
  mix-blend-mode: multiply;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-2);
  margin-bottom: var(--sp-4);
}

.footer-col ul li { margin-bottom: var(--sp-2); }
.footer-col a { color: var(--text-1); transition: color var(--dur-fast) var(--ease); }
.footer-col a:hover { color: var(--accent); }

.footer-social {
  display: flex;
  gap: var(--sp-2);
  margin-top: var(--sp-3);
}
.footer-social a {
  width: 36px; height: 36px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.footer-social a:hover { border-color: var(--accent); color: var(--accent); }
.footer-social svg { width: 16px; height: 16px; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  padding-top: var(--sp-4);
  font-size: var(--fs-xs);
  color: var(--text-2);
}

.back-to-top {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  border: 1px solid var(--line);
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  cursor: pointer;
  background: var(--bg-2);
  color: var(--text-1);
  transition: border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.back-to-top:hover { border-color: var(--accent); color: var(--accent); }

/* ---------------- Floating WhatsApp button ---------------- */
.whatsapp-float {
  position: fixed;
  right: var(--sp-4);
  bottom: var(--sp-4);
  z-index: 90;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--dur-fast) var(--ease);
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 30px; height: 30px; fill: #fff; }

.whatsapp-float::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid #25d366;
  animation: pulseRing 2.4s ease-out infinite;
}

@keyframes pulseRing {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}