/* ============ RESET & BASE ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --brown-900: #3a1f0f;
  --brown-700: #6b3d1c;
  --brown-500: #a05d2c;
  --orange: #f08e3b;
  --orange-dark: #d97328;
  --cream: #fff6e8;
  --cream-2: #fdebcf;
  --pink: #f6a8b8;
  --green-wsp: #25D366;
  --green-wsp-dark: #1ebe5b;
  /* Identidad de marca JASAM */
  --ink: #0a0a0a;
  --ink-2: #1a1a1a;
  --gold: #f4c430;
  --gold-dark: #c89a14;
  --gold-light: #ffe072;
  --shadow: 0 8px 24px rgba(58, 31, 15, 0.15);
  --shadow-lg: 0 16px 40px rgba(58, 31, 15, 0.25);
  --shadow-gold: 0 8px 24px rgba(244, 196, 48, 0.35);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Poppins', system-ui, sans-serif;
  background: var(--cream);
  color: var(--brown-900);
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: 80px;
}

/* ============ HERO ============ */
.hero {
  background:
    radial-gradient(circle at 30% 20%, #2a2a2a 0%, var(--ink-2) 50%, var(--ink) 100%);
  color: #fff;
  padding: 60px 24px 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "🧇";
  position: absolute;
  font-size: 280px;
  opacity: .06;
  top: -40px; right: -40px;
  transform: rotate(-15deg);
}
.hero-inner { max-width: 800px; margin: 0 auto; position: relative; }
.hero-logo {
  display: block;
  width: clamp(110px, 22vw, 160px);
  height: auto;
  margin: 0 auto 18px;
  filter: drop-shadow(0 8px 24px rgba(244, 196, 48, .25));
}
.hero h1 {
  font-family: 'Fredoka', sans-serif;
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  text-shadow: 3px 3px 0 var(--ink);
}
.hero h1 span { color: var(--gold-light); }
.tagline { font-size: 1.15rem; margin-top: 16px; opacity: .92; color: #fff; }

.hero-cta {
  display: inline-block;
  margin-top: 28px;
  background: var(--gold);
  color: var(--ink);
  padding: 14px 36px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: var(--shadow-gold);
  transition: transform .2s, box-shadow .2s, background .2s;
}
.hero-cta:hover { transform: translateY(-2px); background: var(--gold-light); box-shadow: 0 12px 32px rgba(244, 196, 48, .5); }

/* ============ NAV TABS ============ */
.nav-tabs {
  position: sticky;
  top: 0;
  background: var(--cream);
  border-bottom: 2px solid var(--cream-2);
  display: flex;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  z-index: 50;
  box-shadow: 0 2px 8px rgba(0,0,0,.04);
  flex-wrap: wrap;
}
.nav-tabs a {
  color: var(--brown-700);
  text-decoration: none;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  transition: background .2s, color .2s;
}
.nav-tabs a:hover { background: var(--orange); color: #fff; }

/* ============ SECTIONS ============ */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px;
}
.section.alt { background: var(--cream-2); max-width: 100%; padding: 60px 24px; }
.section.alt > * { max-width: 1100px; margin-left: auto; margin-right: auto; }

.section-title {
  font-family: 'Fredoka', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  text-align: center;
  color: var(--brown-900);
}
.section-sub {
  text-align: center;
  color: var(--brown-500);
  margin-bottom: 40px;
  font-style: italic;
}

/* ============ GRID & CARDS ============ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.card {
  background: #fff;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
  display: flex;
  flex-direction: column;
  position: relative;
  border: 2px solid transparent;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card:hover .card-art svg { transform: rotate(-2deg) scale(1.05); }

.card.promo { border-color: var(--orange); }
.card.promo.destacada {
  background: linear-gradient(135deg, #fff 0%, var(--cream-2) 100%);
  border-color: var(--orange-dark);
}

/* ====== Card art (ilustración SVG en card) ====== */
.card-art {
  background: linear-gradient(160deg, #fde2bf 0%, #f5b97a 100%);
  height: 170px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.card-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(255,255,255,.4) 0%, transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,.3) 0%, transparent 25%);
}
.card-art svg {
  width: 95%;
  max-width: 280px;
  height: auto;
  position: relative;
  z-index: 1;
  transition: transform .3s ease;
  filter: drop-shadow(0 8px 12px rgba(58,31,15,.25));
}

.badge {
  position: absolute;
  top: 12px; right: 12px;
  background: var(--orange-dark);
  color: #fff;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  z-index: 2;
}

.card-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.card h3 {
  font-family: 'Fredoka', sans-serif;
  color: var(--brown-900);
  font-size: 1.4rem;
  margin-bottom: 8px;
}
.desc { color: var(--brown-700); font-size: .92rem; flex: 1; margin-bottom: 16px; }

.price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.price {
  font-family: 'Fredoka', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--orange-dark);
}

/* ============ BUTTONS ============ */
.btn-add {
  background: var(--orange);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  font-size: .9rem;
  transition: background .2s, transform .15s;
}
.btn-add:hover { background: var(--orange-dark); transform: scale(1.05); }
.btn-add.big {
  padding: 14px 32px;
  font-size: 1.05rem;
  display: block;
  margin: 24px auto 0;
}
.btn-add.added { background: #4caf50; }

/* ============ BUILDER 3D ============ */
.builder-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  max-width: 980px;
  margin: 0 auto;
}

.stage-wrap {
  background: linear-gradient(160deg, #fff 0%, var(--cream-2) 100%);
  border-radius: 24px;
  padding: 24px;
  box-shadow: var(--shadow);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.stage-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,200,120,.3) 0%, transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(240,142,59,.15) 0%, transparent 50%);
  pointer-events: none;
}

.stage-3d {
  perspective: 900px;
  position: relative;
  z-index: 1;
}

.stage-svg {
  width: 100%;
  max-width: 460px;
  height: auto;
  margin: 0 auto;
  display: block;
  transform-style: preserve-3d;
  transform: rotateX(8deg);
  transition: transform .3s ease;
  filter: drop-shadow(0 18px 24px rgba(58,31,15,.25));
}
.stage-3d:hover .stage-svg { transform: rotateX(2deg); }

/* Animación al agregar capa */
@keyframes drop-in {
  0%   { transform: translateY(-40px) scale(.6); opacity: 0; }
  60%  { transform: translateY(4px) scale(1.05); opacity: 1; }
  100% { transform: translateY(0) scale(1); opacity: 1; }
}
.stage-svg [data-anim="in"] {
  animation: drop-in .45s cubic-bezier(.34,1.56,.64,1) both;
  transform-origin: center;
}

.stage-info { position: relative; z-index: 1; margin-top: 8px; }
.stage-info h4 {
  font-family: 'Fredoka', sans-serif;
  font-size: 2rem;
  color: var(--orange-dark);
}
.stage-summary {
  color: var(--brown-700);
  font-size: .92rem;
  margin-top: 4px;
  min-height: 1.4em;
}

/* ============ FORM ============ */
.builder {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow);
}
.builder-block { margin-bottom: 24px; padding-bottom: 20px; border-bottom: 1px dashed var(--cream-2); }
.builder-block:last-of-type { border-bottom: none; }
.builder-block h4 {
  font-family: 'Fredoka', sans-serif;
  color: var(--brown-900);
  margin-bottom: 12px;
  font-size: 1.15rem;
}
.opts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.opts label {
  background: var(--cream-2);
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-size: .9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all .2s;
  user-select: none;
  border: 2px solid transparent;
}
.opts label:hover { background: var(--orange); color: #fff; transform: translateY(-1px); }
.opts label small { color: var(--orange-dark); font-weight: 600; }
.opts label:hover small { color: #fff; }
.opts input { display: none; }
.opts label:has(input:checked) {
  background: var(--orange-dark);
  color: #fff;
  border-color: var(--brown-700);
  font-weight: 600;
  box-shadow: 0 4px 8px rgba(217,115,40,.3);
}
.opts label:has(input:checked) small { color: #fff; }

.hint { font-size: .8rem; color: var(--brown-500); margin-top: 8px; font-style: italic; }

/* ============ Builder layout desktop: stage sticky lateral ============ */
@media (min-width: 900px) {
  .builder-wrap {
    grid-template-columns: minmax(360px, 420px) 1fr;
    align-items: start;
  }
  .stage-wrap {
    position: sticky;
    top: 80px;
  }
}

/* ============ CART ============ */
.cart-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--orange-dark);
  color: #fff;
  border: none;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  font-size: 1.4rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: transform .2s;
}
.cart-toggle:hover { transform: scale(1.1); }
.cart-toggle span {
  position: absolute;
  top: -4px; right: -4px;
  background: var(--green-wsp);
  color: #fff;
  font-size: .75rem;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #fff;
}

.cart-panel {
  position: fixed;
  top: 0; right: 0;
  width: min(420px, 100%);
  height: 100vh;
  background: #fff;
  box-shadow: -8px 0 24px rgba(0,0,0,.15);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform .3s ease;
  z-index: 200;
}
.cart-panel.open { transform: translateX(0); }

.cart-head {
  padding: 20px 24px;
  background: var(--orange-dark);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.cart-head h3 { font-family: 'Fredoka', sans-serif; font-size: 1.4rem; }
.cart-head button {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px 10px;
}

.cart-list {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}
.cart-list .empty {
  text-align: center;
  color: var(--brown-500);
  padding: 40px 20px;
  font-style: italic;
}

.cart-item {
  background: var(--cream);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 10px;
  border-left: 4px solid var(--orange);
}
.cart-item-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}
.cart-item h4 { font-family: 'Fredoka', sans-serif; font-size: 1.05rem; color: var(--brown-900); }
.cart-item .item-price { color: var(--orange-dark); font-weight: 700; white-space: nowrap; }
.cart-item .details { font-size: .82rem; color: var(--brown-700); margin-top: 6px; }
.cart-item .remove {
  background: none;
  border: none;
  color: #c0392b;
  cursor: pointer;
  font-size: .8rem;
  margin-top: 8px;
  padding: 0;
  font-weight: 600;
}
.cart-item .remove:hover { text-decoration: underline; }

.cart-foot {
  padding: 16px 20px 20px;
  border-top: 2px solid var(--cream-2);
  background: #fff;
}
.total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  font-size: 1.1rem;
}
.total-row strong {
  font-family: 'Fredoka', sans-serif;
  font-size: 1.6rem;
  color: var(--orange-dark);
}

.cart-name {
  display: block;
  font-size: .85rem;
  color: var(--brown-700);
  margin-bottom: 12px;
}
.cart-name input,
.cart-name textarea {
  width: 100%;
  padding: 10px 12px;
  border: 2px solid var(--cream-2);
  border-radius: 10px;
  font-family: inherit;
  font-size: .9rem;
  margin-top: 4px;
  resize: vertical;
}
.cart-name input:focus,
.cart-name textarea:focus { outline: none; border-color: var(--orange); }

.btn-wsp {
  width: 100%;
  background: var(--green-wsp);
  color: #fff;
  border: none;
  padding: 16px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  font-family: inherit;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: background .2s, transform .15s;
}
.btn-wsp::before { content: "📲"; font-size: 1.3rem; }
.btn-wsp:hover { background: var(--green-wsp-dark); transform: translateY(-2px); }
.btn-wsp:disabled { background: #b0b0b0; cursor: not-allowed; transform: none; }

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
  z-index: 150;
}
.overlay.show { opacity: 1; pointer-events: auto; }

/* ============ FOOTER ============ */
.footer {
  background: var(--ink);
  color: #fff;
  text-align: center;
  padding: 36px 20px 30px;
  margin-top: 40px;
  border-top: 3px solid var(--gold);
}
.footer-logo {
  display: block;
  width: 70px;
  height: auto;
  margin: 0 auto 14px;
  opacity: .95;
}
.footer a { color: var(--gold); font-weight: 700; text-decoration: none; }
.footer a:hover { color: var(--gold-light); text-decoration: underline; }
.footer .copy { font-size: .8rem; opacity: .6; margin-top: 8px; }

/* ============ ANIMATIONS ============ */
@keyframes pop {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.2); }
  100% { transform: scale(1); }
}
.cart-toggle.bump { animation: pop .4s ease; }

/* ============ RESPONSIVE ============ */
@media (max-width: 600px) {
  .hero { padding: 60px 20px 80px; }
  .builder { padding: 20px; }
  .cart-panel { width: 100%; }
  .cart-toggle { width: 56px; height: 56px; bottom: 16px; right: 16px; }
  .stage-wrap { padding: 16px; }
}