/* ============================================================
   nav.css — NavigationBar + Cart button flotante
   Ilios Vounó — tema negro/neón
   ============================================================ */

/* ── Base Nav ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  padding: var(--space-5) var(--space-5) var(--space-5) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  transition:
    transform 0.4s var(--ease-out-expo),
    padding var(--duration-normal) var(--ease-in-out);
  border-bottom: 1px solid transparent;
}

.nav--scrolled {
  padding: var(--space-4) var(--gutter);
}

.nav--hidden {
  transform: translateY(-120%);
  pointer-events: none;
}

/* Fallback si no hay imagen de logo */
.nav__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav__brand-name {
  position: relative;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: #fff;
  line-height: 1.1;
  padding-bottom: 2px; /* prevent shadow clipping */

  /* Extrusión 3D idéntica al hero, escalada a la mitad para el nav */
  text-shadow:
    0px 0.5px 0.5px #d1d9e6,
    0px 1px 0.5px #b8c1d1,
    0px 1.5px 0.5px #a2acbd,
    0px 2px 0.5px #8f9ba9,
    0px 2.5px 0.5px #7b8896,
    0px 3px 0.5px #647382,
    0px 3.5px 0.5px #52606e,
    0px 7.5px 5px rgba(0, 0, 0, 0.6),
    0px 12.5px 10px rgba(0, 0, 0, 0.4);
}

.nav__brand-name::after {
  content: attr(data-text);
  position: absolute;
  left: 0;
  top: 0;
  z-index: 1;
  /* Silver/Metallic gradient idéntico al hero */
  background: linear-gradient(
    to bottom,
    #ffffff 0%,
    #e1e8ed 30%,
    #aab6c2 48%,
    #657786 50%,
    #aab6c2 65%,
    #e1e8ed 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__brand-sub {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-cyan-400);
}

/* ── Desktop links ── */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-10);
}

.nav__link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-gray-400);
  text-decoration: none;
  position: relative;
  transition: color var(--duration-normal) var(--ease-out-quart);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 1px;
  background: var(--color-white);
  box-shadow: 0 0 10px rgba(255,255,255,0.8);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--color-white);
}

.nav__link:hover::after,
.nav__link.is-active::after {
  transform: scaleX(1);
}

/* ── Right group: CTA + Cart + Hamburger ── */
.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* ── CTA (Liquid Glass) ── */
.nav__cta {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-white);
  
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--duration-normal) var(--ease-out-quart);
}

.nav__cta:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-2px);
}

/* ── Cart button in nav ── */
.nav__cart-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-full);
  cursor: pointer;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--color-white);
  transition:
    border-color var(--duration-normal),
    background var(--duration-normal),
    transform var(--duration-fast);
}

.nav__cart-btn:hover {
  border-color: var(--color-cyan-400);
  color: var(--color-white);
  transform: scale(1.05);
}

.nav__cart-btn svg { width: 18px; height: 18px; }

/* Cart badge */
#cart-count-badge {
  position: absolute;
  top: -4px; right: -4px;
  width: 18px; height: 18px;
  background: var(--color-white);
  color: var(--color-black);
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  display: none; /* shown by JS */
}

/* ── Hamburger ── */
.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 42px; height: 42px;
  cursor: pointer;
  z-index: 101;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  padding: 0;
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.nav__hamburger:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
  transform: scale(1.05);
}

.nav__hamburger-line {
  display: block;
  height: 1.5px;
  background: var(--color-white);
  border-radius: var(--radius-full);
  transition:
    transform var(--duration-normal) var(--ease-out-expo),
    opacity var(--duration-normal) var(--ease-out-expo),
    width var(--duration-normal) var(--ease-out-expo);
}

.nav__hamburger-line:nth-child(1) { width: 20px; }
.nav__hamburger-line:nth-child(2) { width: 14px; }
.nav__hamburger-line:nth-child(3) { width: 20px; }

.nav--open .nav__hamburger {
  background: rgba(255, 0, 0, 0.1); /* Sutil aviso de cierre */
  border-color: rgba(255, 255, 255, 0.5);
}

.nav--open .nav__hamburger-line:nth-child(1) { transform: translateY(7.5px) rotate(45deg); width: 20px; }
.nav--open .nav__hamburger-line:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav--open .nav__hamburger-line:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); width: 20px; }

/* ── Dropdown Menu (Menú Chico) ── */
.nav__dropdown {
  position: absolute;
  top: calc(100% + 15px);
  right: var(--gutter);
  width: 240px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px) scale(0.95);
  transform-origin: top right;
  transition: 
    opacity 0.4s var(--ease-out-expo),
    transform 0.4s var(--ease-out-expo),
    visibility 0.4s;
  z-index: 100;
}

.nav--open .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.nav__dropdown-content {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-4) 0;
  box-shadow: 
    0 20px 40px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
}

.nav__dropdown-link {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gray-400);
  text-decoration: none;
  padding: var(--space-3) var(--space-6);
  transition: all var(--duration-normal);
  position: relative;
  overflow: hidden;
}

.nav__dropdown-link:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
  padding-left: var(--space-8);
}

.nav__dropdown-link::before {
  content: '';
  position: absolute;
  left: var(--space-4);
  top: 50%;
  width: 4px;
  height: 4px;
  background: var(--color-white);
  border-radius: 50%;
  transform: translateY(-50%) scale(0);
  transition: transform 0.3s var(--ease-out-expo);
}

.nav__dropdown-link:hover::before {
  transform: translateY(-50%) scale(1);
  box-shadow: 0 0 8px #fff;
}

/* Fallback for existing mobile links if any */
.nav__mobile-menu { display: none; }

/* ══════════════════════════════════════════════════════
   CART PANEL DRAWER
   ══════════════════════════════════════════════════════ */

#cart-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: calc(var(--z-cart) - 1);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out-quart);
}

#cart-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 100%;
  max-width: 420px;
  background: var(--color-black-light);
  border-left: 1px solid rgba(255,255,255,0.07);
  z-index: var(--z-cart);
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-out-expo);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#cart-panel.is-open {
  transform: translateX(0);
}

#cart-panel.is-open ~ #cart-overlay {
  opacity: 1;
  pointer-events: all;
}

.cart__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6) var(--space-6) var(--space-5);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.cart__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-white);
}

#cart-close-btn {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  color: var(--color-gray-400);
  cursor: pointer;
  transition: color var(--duration-normal), border-color var(--duration-normal);
}
#cart-close-btn:hover { color: var(--color-white); border-color: rgba(255,255,255,0.2); }

/* Items list */
#cart-items-list {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cart__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: var(--space-3);
  text-align: center;
  color: var(--color-gray-600);
  padding: var(--space-16) 0;
}

.cart__empty-icon { font-size: var(--text-4xl); opacity: 0.3; }
.cart__empty-text { font-family: var(--font-display); font-size: var(--text-lg); color: var(--color-gray-400); }
.cart__empty-sub  { font-size: var(--text-sm); }

.cart__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
}

.cart__item-dot {
  width: 10px; height: 10px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.cart__item-info {
  flex: 1;
  min-width: 0;
}

.cart__item-name {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-white);
}

.cart__item-sub {
  font-size: var(--text-xs);
  color: var(--color-gray-600);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cart__item-controls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.cart__qty-btn {
  width: 26px; height: 26px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  color: var(--color-white);
  font-size: var(--text-base);
  cursor: pointer;
  transition: background var(--duration-fast);
}
.cart__qty-btn:hover { background: rgba(0,240,255,0.15); border-color: var(--color-cyan-400); }

.cart__qty {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-white);
  min-width: 20px;
  text-align: center;
}

.cart__remove-btn {
  color: var(--color-gray-600);
  font-size: var(--text-xs);
  cursor: pointer;
  padding: var(--space-1);
  transition: color var(--duration-fast);
  flex-shrink: 0;
}
.cart__remove-btn:hover { color: var(--color-white); }

/* Cart footer */
.cart__footer {
  padding: var(--space-5) var(--space-6) var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.cart__checkout-btn {
  width: 100%;
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.85);
  color: var(--color-black);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  border-radius: var(--radius-full);
  cursor: pointer;
  border: 1px solid rgba(255,255,255,1);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all var(--duration-normal) var(--ease-out-quart);
}
.cart__checkout-btn:hover {
  background: rgba(255, 255, 255, 1);
  box-shadow: 0 8px 30px rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.cart__legal-note {
  font-size: var(--text-xs);
  color: var(--color-gray-600);
  text-align: center;
  line-height: 1.6;
}