/* =============== Base =============== */
:root{
  --kasa-bg: #f5f6f8;
  --kasa-card: #ffffff;
  --kasa-text: #111827;
  --kasa-muted: #6b7280;
  --kasa-border: rgba(17,24,39,.10);
  --kasa-shadow: 0 18px 40px rgba(0,0,0,.08);
  --kasa-shadow-soft: 0 10px 22px rgba(0,0,0,.06);

  --kasa-red: #c81d25;
  --kasa-red-dark: #a8161d;

  --kasa-wa: #16a34a;
  --kasa-radius: 16px;
  --kasa-radius-sm: 12px;
  --kasa-max: 1120px;
}

*{ box-sizing:border-box; }
.kasa-home{ background: var(--kasa-bg); color: var(--kasa-text); }
.kasa-container{ width: min(100%, var(--kasa-max)); margin: 0 auto; padding: 0 18px; }

.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden;
  clip: rect(0,0,0,0); white-space:nowrap; border:0;
}

.kasa-section{ padding: 28px 0; }
.kasa-section__title{
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 14px;
}
.kasa-section__head{
  display:flex; align-items:center; justify-content:space-between; gap: 14px;
  margin-bottom: 14px;
}
.kasa-link{ color: var(--kasa-muted); text-decoration:none; font-weight: 700; }
.kasa-link:hover{ text-decoration: underline; }

/* =============== Buttons =============== */
.kasa-btn{
  border: 0;
  border-radius: 12px;
  padding: 12px 18px;
  font-weight: 800;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  text-decoration:none;
  user-select:none;
}
.kasa-btn--primary{
  background: var(--kasa-red);
  color:#fff;
}
.kasa-btn--primary:hover{ background: var(--kasa-red-dark); }

.kasa-btn--wa{
  width: 100%;
  background: var(--kasa-red);
  color:#fff;
  padding: 12px 14px;
}
.kasa-btn__waicon{
  width: 16px; height: 16px;
  border-radius: 3px;
  background: #fff;
}

/* =============== Hero =============== */
.kasa-hero{
  position: relative;
  padding: 38px 0 26px;
  background-color: #e9edf2;
  background-size: cover;
  background-position: right center;
  overflow:hidden;
}
.kasa-hero__overlay{
  position:absolute; inset:0;
  background: linear-gradient(90deg, rgba(245,246,248,.98) 0%, rgba(245,246,248,.92) 46%, rgba(245,246,248,.45) 100%);
}
.kasa-hero__grid{
  position:relative;
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 24px;
  align-items: start;
}
.kasa-hero__content{ padding-top: 8px; }
.kasa-hero__spacer{ min-height: 360px; }

.kasa-hero__title{
  font-size: 44px;
  line-height: 1.05;
  margin: 0 0 10px;
  font-weight: 900;
  letter-spacing: -.02em;
}
.kasa-hero__subtitle{
  margin: 0 0 18px;
  color: var(--kasa-muted);
  font-weight: 600;
  max-width: 560px;
}

/* Buscador principal */
.kasa-searchbar{
  display:flex;
  gap: 12px;
  align-items:center;
  background: rgba(255,255,255,.85);
  border: 1px solid var(--kasa-border);
  border-radius: 16px;
  padding: 10px;
  box-shadow: var(--kasa-shadow-soft);
  max-width: 720px;
}
.kasa-searchbar__input{
  flex:1;
  border:0;
  outline:none;
  background: transparent;
  padding: 10px 12px;
  font-size: 16px;
  color: var(--kasa-text);
}
.kasa-searchbar__btn{ padding: 12px 20px; }

/* Card blanca tabs */
.kasa-card{
  background: var(--kasa-card);
  border: 1px solid var(--kasa-border);
  border-radius: 18px;
  box-shadow: var(--kasa-shadow);
}
.kasa-card--search{
  margin-top: 14px;
  max-width: 720px;
  overflow:hidden;
}

.kasa-tabs{
  display:flex;
  gap: 0;
  border-bottom: 1px solid var(--kasa-border);
  background: #fafafa;
}
.kasa-tab{
  flex: 0 0 auto;
  padding: 12px 16px;
  font-weight: 800;
  color: var(--kasa-muted);
  border: 0;
  background: transparent;
  cursor:pointer;
}
.kasa-tab.is-active{
  color: var(--kasa-text);
  background: #fff;
  border-bottom: 2px solid var(--kasa-red);
}

.kasa-tabs__panels{ padding: 14px; }
.kasa-panel{ display:block; }
.kasa-panel[hidden]{ display:none; }

.kasa-filters{
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}
.kasa-hint{
  margin: 10px 2px 0;
  color: #9ca3af;
  font-weight: 700;
  font-size: 13px;
}

/* Inputs */
.kasa-input{
  width: 100%;
  border: 1px solid var(--kasa-border);
  border-radius: 12px;
  padding: 12px 12px;
  outline:none;
  background:#fff;
  font-weight: 700;
}
.kasa-code{
  display:flex;
  gap: 10px;
  align-items:center;
}
.kasa-code .kasa-input{ flex:1; }

/* Fake select */
.kasa-select{ position: relative; }
.kasa-select__btn{
  width: 100%;
  display:flex;
  justify-content:space-between;
  align-items:center;
  border: 1px solid var(--kasa-border);
  border-radius: 12px;
  padding: 12px 12px;
  background:#fff;
  cursor:pointer;
  font-weight: 800;
  color: #374151;
}
.kasa-select__chev{
  width: 12px; height: 12px;
  display:inline-block;
  border-right: 2px solid #9ca3af;
  border-bottom: 2px solid #9ca3af;
  transform: rotate(45deg);
  margin-left: 10px;
}
.kasa-select__menu{
  position:absolute;
  z-index: 30;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background:#fff;
  border: 1px solid var(--kasa-border);
  border-radius: 12px;
  box-shadow: var(--kasa-shadow-soft);
  padding: 6px;
}
.kasa-select__opt{
  width: 100%;
  text-align:left;
  background:transparent;
  border:0;
  padding: 10px 10px;
  border-radius: 10px;
  cursor:pointer;
  font-weight: 700;
}
.kasa-select__opt:hover{ background:#f3f4f6; }

.kasa-select--compact .kasa-select__btn{ padding: 10px 10px; font-weight: 800; }
.kasa-select--full{ grid-column: 1 / -1; }

/* =============== Categorías =============== */
.kasa-cats{
  display:grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}
.kasa-cat{
  background:#fff;
  border: 1px solid var(--kasa-border);
  border-radius: 16px;
  padding: 14px 12px;
  text-decoration:none;
  color: var(--kasa-text);
  box-shadow: var(--kasa-shadow-soft);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 10px;
  transition: transform .15s ease, box-shadow .15s ease;
}
.kasa-cat:hover{
  transform: translateY(-2px);
  box-shadow: var(--kasa-shadow);
}
.kasa-cat__icon{
  width: 54px; height: 54px;
  display:grid; place-items:center;
}
.kasa-cat__icon img{ max-width: 54px; max-height: 54px; }
.kasa-cat__ph{
  width: 42px; height: 42px; border-radius: 12px;
  background: #e5e7eb;
}
.kasa-cat__title{ font-weight: 900; }

/* =============== Ayuda + WhatsApp =============== */
.kasa-helpwrap{
  background: #fff;
  border: 1px solid var(--kasa-border);
  border-radius: 18px;
  box-shadow: var(--kasa-shadow-soft);
  padding: 16px;
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 14px;
  align-items: stretch;
}
.kasa-help__title{
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 900;
}
.kasa-help__cards{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}
.kasa-helpcard{
  border: 1px solid var(--kasa-border);
  border-radius: 16px;
  padding: 12px;
  text-decoration:none;
  color: var(--kasa-text);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 8px;
  background:#fafafa;
  transition: transform .15s ease, background .15s ease;
}
.kasa-helpcard:hover{ transform: translateY(-2px); background:#fff; }
.kasa-helpcard__icon{ width: 56px; height: 56px; display:grid; place-items:center; }
.kasa-helpcard__icon img{ max-width: 56px; max-height: 56px; }
.kasa-helpcard__ph{ width: 44px; height: 44px; border-radius: 12px; background:#e5e7eb; }
.kasa-helpcard__title{ font-weight: 900; }

.kasa-wa{
  border: 1px solid var(--kasa-border);
  border-radius: 16px;
  padding: 14px;
  background:#fff;
}
.kasa-wa__title{ margin: 0 0 6px; font-size: 18px; font-weight: 900; }
.kasa-wa__text{ margin: 0 0 12px; color: var(--kasa-muted); font-weight: 700; font-size: 14px; }
.kasa-wa__filters{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

/* =============== Badges =============== */
.kasa-badges{
  margin-top: 14px;
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.kasa-badge{
  display:flex;
  align-items:center;
  gap: 12px;
}
.kasa-badge__icon{
  width: 36px; height: 36px;
  border-radius: 10px;
  background:#fff;
  border: 1px solid var(--kasa-border);
  display:grid; place-items:center;
  box-shadow: var(--kasa-shadow-soft);
}
.kasa-badge__icon img{ max-width: 22px; max-height: 22px; }
.kasa-badge__ph{ width: 18px; height: 18px; border-radius: 6px; background:#e5e7eb; }
.kasa-badge__title{ font-weight: 900; }
.kasa-badge__sub{ color: var(--kasa-muted); font-weight: 700; font-size: 13px; }

/* =============== Ofertas =============== */
.kasa-section--offers{ padding-top: 10px; }
.kasa-offers{
  display:grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.kasa-product{
  background:#fff;
  border: 1px solid var(--kasa-border);
  border-radius: 18px;
  box-shadow: var(--kasa-shadow-soft);
  overflow:hidden;
  display:flex;
  flex-direction:column;
}
.kasa-product__img{
  position:relative;
  display:block;
  background:#f3f4f6;
  padding: 14px;
}
.kasa-product__img img{
  width: 100%;
  height: 140px;
  object-fit: contain;
  display:block;
}
.kasa-chip{
  position:absolute;
  top: 12px; left: 12px;
  background: #ef4444;
  color:#fff;
  font-weight: 900;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
}
.kasa-product__body{
  padding: 12px 12px 14px;
  display:flex;
  flex-direction:column;
  gap: 8px;
}
.kasa-product__price{ font-size: 22px; font-weight: 900; }
.kasa-product__title{
  font-weight: 900;
  color: var(--kasa-text);
  text-decoration:none;
  line-height: 1.2;
  min-height: 36px;
}
.kasa-btn--cart{
  width: 100%;
  background: var(--kasa-red);
  color:#fff;
}
.kasa-btn--cart:hover{ background: var(--kasa-red-dark); }

/* =============== Footer simple =============== */
.kasa-footer{
  padding: 24px 0 34px;
  background: #f0f2f6;
  border-top: 1px solid var(--kasa-border);
}
.kasa-footer__grid{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 14px;
}
.kasa-footer__brand{
  font-weight: 900;
  letter-spacing: .04em;
}
.kasa-footer__links{
  display:flex;
  gap: 16px;
}
.kasa-footer__links a{
  color: var(--kasa-muted);
  text-decoration:none;
  font-weight: 800;
}
.kasa-footer__links a:hover{ text-decoration: underline; }

/* =============== Responsive =============== */
@media (max-width: 980px){
  .kasa-hero__grid{ grid-template-columns: 1fr; }
  .kasa-hero__spacer{ display:none; }
  .kasa-filters{ grid-template-columns: 1fr 1fr; }
  .kasa-cats{ grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .kasa-helpwrap{ grid-template-columns: 1fr; }
  .kasa-offers{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kasa-badges{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kasa-hero__title{ font-size: 36px; }
}

@media (max-width: 520px){
  .kasa-searchbar{ flex-direction:column; align-items:stretch; }
  .kasa-searchbar__btn{ width: 100%; }
  .kasa-filters{ grid-template-columns: 1fr; }
  .kasa-cats{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kasa-help__cards{ grid-template-columns: 1fr; }
  .kasa-offers{ grid-template-columns: 1fr; }
  .kasa-footer__grid{ flex-direction:column; align-items:flex-start; }
}