/* =====================================================
   SMASH BURGER — styles.css
   Paleta monocromática: Negro / Blanco / Grises
   Fuentes: Oswald + Nunito
===================================================== */

:root {
  --black:       #000000;
  --dark-bg:     #0a0a0a;
  --card-bg:     #141414;
  --gray-dark:   #222222;
  --gray-medium: #555555;
  --gray-light:  #aaaaaa;
  --white:       #ffffff;
  --green-wa:    #25D366;
  --shadow:      0 10px 30px rgba(0,0,0,0.8);
  --radius:      8px;
  --trans:       0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Nunito', sans-serif;
  background: var(--dark-bg);
  color: var(--white);
  overflow-x: hidden;
}

/* ── HEADER ─────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-dark);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo-wrap { display: flex; align-items: center; }
.logo-text h1 {
  font-family: 'Oswald', sans-serif;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.logo-text p {
  font-size: 0.75rem;
  color: var(--gray-light);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ── CART FAB ────────────────────────────────────── */
.cart-fab {
  background: var(--white);
  color: var(--black);
  border: none;
  border-radius: 50px;
  padding: 10px 18px;
  font-weight: 800;
  cursor: pointer;
  transition: transform var(--trans), background var(--trans);
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Nunito', sans-serif;
}
.cart-fab:hover { transform: scale(1.05); background: var(--gray-light); }

.cart-count {
  background: var(--black);
  color: var(--white);
  border-radius: 50%;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 900;
}

/* ── HERO ────────────────────────────────────────── */
.hero {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  background: linear-gradient(to bottom, var(--dark-bg), #000);
}

#particlesCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  text-align: center;
}

.hero-sub {
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--gray-light);
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-bottom: 16px;
  opacity: 0;
  animation: fadeSlideDown 0.6s 0s cubic-bezier(0.16,1,0.3,1) forwards;
}

.hero-title {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: 34px;
}

/* Cada palabra entra con slide+skew escalonado */
.title-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px) skewX(-8deg);
  animation: wordReveal 0.7s cubic-bezier(0.16,1,0.3,1) forwards;
}
.hero-title .title-word:nth-child(1) { animation-delay: 0.10s; }
.hero-title .title-word:nth-child(2) { animation-delay: 0.20s; }
.hero-title .title-word:nth-child(3) { animation-delay: 0.35s; }
.hero-title .title-word:nth-child(4) { animation-delay: 0.45s; }
.hero-title .title-word:nth-child(5) { animation-delay: 0.60s; }

@keyframes wordReveal {
  to { opacity: 1; transform: translateY(0) skewX(0deg); }
}

/* "diferencia?" — subrayado + glitch */
.title-highlight {
  position: relative;
  color: var(--white);
  animation: wordReveal 0.7s 0.60s cubic-bezier(0.16,1,0.3,1) forwards,
             glitchPulse 4s 1.5s ease-in-out infinite;
}
.title-highlight::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 4px;
  background: var(--white);
  border-radius: 2px;
  animation: underlineGrow 0.8s 1.1s cubic-bezier(0.16,1,0.3,1) forwards;
}
@keyframes underlineGrow { to { width: 100%; } }
@keyframes glitchPulse {
  0%,90%,100% { text-shadow: none; }
  92% { text-shadow: -3px 0 rgba(255,255,255,0.5), 3px 0 rgba(180,180,180,0.4); }
  94% { text-shadow:  3px 0 rgba(255,255,255,0.5),-3px 0 rgba(180,180,180,0.4); }
  96% { text-shadow: none; }
  98% { text-shadow: -2px 0 rgba(255,255,255,0.3); }
}

.hero-btn {
  display: inline-block;
  padding: 16px 36px;
  background: var(--white);
  color: var(--black);
  font-family: 'Oswald', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 1px;
  border-radius: var(--radius);
  text-decoration: none;
  text-transform: uppercase;
  transition: all var(--trans);
  opacity: 0;
  animation: fadeSlideUp 0.6s 0.9s cubic-bezier(0.16,1,0.3,1) forwards;
}
.hero-btn:hover {
  background: var(--black);
  color: var(--white);
  box-shadow: 0 0 0 2px var(--white);
}

@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── MENÚ SECTION ────────────────────────────────── */
.menu-section { padding: 80px 20px; max-width: 1200px; margin: 0 auto; }
.section-title-wrap { text-align: center; margin-bottom: 60px; }
.section-title {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  font-weight: 900;
  color: var(--white);
  text-transform: uppercase;
}
.section-sub { color: var(--gray-medium); margin-top: 8px; }

.loading-state {
  grid-column: 1/-1;
  text-align: center;
  padding: 60px;
  color: var(--gray-medium);
  font-size: 1.2rem;
}

/* ── PRODUCT GRID ────────────────────────────────── */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

/* ── PRODUCT CARD ────────────────────────────────── */
.product-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
  position: relative;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--gray-dark);
}
.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(255,255,255,0.05);
  border-color: var(--gray-medium);
}

.card-badge {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 10;
  background: var(--white);
  color: var(--black);
  font-family: 'Oswald', sans-serif;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 4px 10px;
  border-radius: 4px;
  text-transform: uppercase;
}

.card-img-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--black);
}
.card-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.product-card:hover .card-img { transform: scale(1.06); }

.card-body {
  padding: 24px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}
.card-name {
  font-family: 'Oswald', sans-serif;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--white);
  text-transform: uppercase;
  line-height: 1.2;
  margin-bottom: 8px;
}
.card-desc {
  font-size: 0.92rem;
  color: var(--gray-medium);
  line-height: 1.5;
  margin-bottom: 20px;
  flex-grow: 1;
}
.card-price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
}
.card-price {
  font-family: 'Oswald', sans-serif;
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--white);
}
.card-price span {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gray-medium);
  margin-left: 2px;
}

.btn-add {
  background: var(--white);
  color: var(--black);
  border: none;
  border-radius: var(--radius);
  padding: 10px 20px;
  font-family: 'Oswald', sans-serif;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--trans);
  flex-shrink: 0;
}
.btn-add:hover { background: var(--gray-light); }
.btn-add:active { transform: scale(0.96); }

/* ── CART OVERLAY ────────────────────────────────── */
.cart-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
}
.cart-overlay.active { display: block; }

/* ── CART PANEL ──────────────────────────────────── */
.cart-panel {
  position: fixed;
  top: 0; right: -440px;
  width: min(420px, 96vw);
  height: 100dvh;
  background: var(--dark-bg);
  border-left: 1px solid var(--gray-dark);
  z-index: 201;
  display: flex;
  flex-direction: column;
  transition: right 0.35s cubic-bezier(0.25,0.8,0.25,1);
  box-shadow: -10px 0 40px rgba(0,0,0,0.9);
}
.cart-panel.open { right: 0; }

.cart-header {
  padding: 20px;
  border-bottom: 1px solid var(--gray-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0,0,0,0.3);
  flex-shrink: 0;
}
.cart-header h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 2px;
}
.cart-close {
  background: var(--gray-dark);
  border: none;
  color: var(--white);
  width: 34px; height: 34px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  transition: background var(--trans);
  display: flex; align-items: center; justify-content: center;
}
.cart-close:hover { background: var(--gray-medium); }

/* ── CART ITEMS ──────────────────────────────────── */
.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
}
.cart-items::-webkit-scrollbar { width: 4px; }
.cart-items::-webkit-scrollbar-track { background: transparent; }
.cart-items::-webkit-scrollbar-thumb { background: var(--gray-dark); border-radius: 10px; }

.cart-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--gray-medium);
}

.cart-item {
  background: var(--card-bg);
  border: 1px solid var(--gray-dark);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  animation: slideIn 0.22s ease both;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

.ci-info { flex: 1; min-width: 0; }
.ci-name {
  font-family: 'Oswald', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ci-price {
  font-size: 0.8rem;
  color: var(--gray-light);
  margin-top: 2px;
}

.ci-controls {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}
.ci-controls button {
  background: var(--gray-dark);
  border: none;
  color: var(--white);
  width: 28px; height: 28px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  transition: background var(--trans);
  display: flex; align-items: center; justify-content: center;
}
.ci-controls button:hover { background: var(--gray-medium); }
.ci-qty {
  min-width: 22px;
  text-align: center;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--white);
}
.ci-remove {
  background: transparent !important;
  color: var(--gray-medium) !important;
  font-size: 0.85rem !important;
}
.ci-remove:hover {
  background: var(--gray-dark) !important;
  color: var(--white) !important;
}

/* ── CART FOOTER ─────────────────────────────────── */
.cart-footer {
  padding: 16px;
  border-top: 1px solid var(--gray-dark);
  background: rgba(0,0,0,0.3);
  flex-shrink: 0;
}
.cart-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.cart-total-row span:first-child {
  font-family: 'Oswald', sans-serif;
  font-size: 0.85rem;
  color: var(--gray-medium);
  letter-spacing: 3px;
}
.cart-total-amount {
  font-family: 'Oswald', sans-serif;
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--white);
}

.btn-checkout {
  width: 100%;
  padding: 14px;
  background: var(--white);
  color: var(--black);
  border: none;
  border-radius: var(--radius);
  font-family: 'Oswald', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--trans);
  margin-bottom: 8px;
}
.btn-checkout:hover { background: var(--gray-light); transform: translateY(-2px); }

.btn-clear {
  width: 100%;
  padding: 9px;
  background: transparent;
  color: var(--gray-medium);
  border: 1px solid var(--gray-medium);
  border-radius: var(--radius);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all var(--trans);
}
.btn-clear:hover { color: var(--white); border-color: var(--white); }

/* ── MODALS ──────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(5px);
  z-index: 300;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.modal-overlay.active { display: flex; }

.modal-box {
  background: var(--card-bg);
  border: 1px solid var(--gray-dark);
  border-radius: var(--radius);
  padding: 30px 28px;
  width: 100%;
  max-width: 480px;
  max-height: 90dvh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow);
  animation: modalIn 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute;
  top: 14px; right: 14px;
  background: var(--gray-dark);
  border: none;
  color: var(--white);
  width: 32px; height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.9rem;
  transition: background var(--trans);
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: var(--gray-medium); }

.modal-header { margin-bottom: 20px; }
.modal-header h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.modal-header p { font-size: 0.85rem; color: var(--gray-medium); margin-top: 4px; }

.order-summary {
  background: var(--dark-bg);
  border: 1px solid var(--gray-dark);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 20px;
  font-size: 0.85rem;
}
.order-summary .os-item {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
  border-bottom: 1px solid var(--gray-dark);
  color: var(--gray-light);
}
.order-summary .os-total {
  display: flex;
  justify-content: space-between;
  padding-top: 10px;
  font-family: 'Oswald', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--white);
}

/* Form */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--gray-light);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.form-group input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  background: var(--dark-bg);
  border: 1px solid var(--gray-dark);
  border-radius: var(--radius);
  color: var(--white);
  font-family: 'Nunito', sans-serif;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--trans);
}
.form-group input[type="text"]:focus { border-color: var(--white); }

.field-error {
  display: block;
  color: #e53e3e;
  font-size: 0.75rem;
  margin-top: 4px;
  min-height: 1rem;
}

.payment-options { display: flex; gap: 8px; flex-wrap: wrap; }
.pay-option { flex: 1; min-width: 90px; }
.pay-option input[type="radio"] { display: none; }
.pay-option span {
  display: block;
  padding: 10px 8px;
  background: var(--dark-bg);
  border: 1px solid var(--gray-dark);
  border-radius: var(--radius);
  text-align: center;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  color: var(--gray-light);
  transition: all var(--trans);
}
.pay-option input[type="radio"]:checked + span {
  border-color: var(--white);
  background: var(--gray-dark);
  color: var(--white);
}
.pay-option span:hover { border-color: var(--gray-medium); }

.btn-whatsapp {
  width: 100%;
  padding: 15px;
  margin-top: 6px;
  background: var(--green-wa);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-family: 'Oswald', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 1px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all var(--trans);
}
.btn-whatsapp:hover { background: #1ebe5d; transform: translateY(-2px); }

.modal-confirm { text-align: center; max-width: 360px; }
.modal-confirm h3 {
  font-family: 'Oswald', sans-serif;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--white);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.modal-confirm p { color: var(--gray-medium); font-size: 0.9rem; }
.confirm-actions { display: flex; gap: 12px; margin-top: 22px; }
.btn-cancel, .btn-confirm {
  flex: 1;
  padding: 12px;
  border-radius: var(--radius);
  font-family: 'Oswald', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  letter-spacing: 1px;
  transition: all var(--trans);
  text-transform: uppercase;
}
.btn-cancel {
  background: transparent;
  color: var(--gray-medium);
  border: 1px solid var(--gray-medium);
}
.btn-cancel:hover { border-color: var(--white); color: var(--white); }
.btn-confirm { background: var(--white); color: var(--black); border: none; }
.btn-confirm:hover { background: var(--gray-light); }

/* ── TOAST ───────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--white);
  color: var(--black);
  padding: 12px 24px;
  border-radius: 50px;
  font-family: 'Oswald', sans-serif;
  font-weight: 800;
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  z-index: 400;
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.34,1.56,0.64,1), opacity 0.3s;
  white-space: nowrap;
  pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ── FOOTER ──────────────────────────────────────── */
.site-footer {
  background: var(--dark-bg);
  border-top: 1px solid var(--gray-dark);
  padding: 30px 20px;
  text-align: center;
  color: var(--gray-medium);
  font-size: 0.9rem;
  line-height: 2;
}
.footer-brand {
  font-family: 'Oswald', sans-serif;
  font-size: 1rem;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-top: 6px;
}

/* ── RESPONSIVE ──────────────────────────────────── */
@media (max-width: 640px) {
  .hero-title { font-size: 2.8rem; }
  .products-grid { grid-template-columns: 1fr; }
  .card-price-row { align-items: center; }
  .modal-box { padding: 22px 16px; }
}