/* ============================================================
   PetShop Amigos — Stylesheet
   Mobile-first | Breakpoints: 480 / 768 / 1024px
   ============================================================ */

/* ---- VARIABLES ---- */
:root {
  --bg: #fffbf0;
  --white: #ffffff;
  --primary: #f59e0b;
  --primary-dark: #d97706;
  --secondary: #10b981;
  --accent: #f97316;
  --text: #1c1917;
  --muted: #78716c;
  --surface: #fef3c7;
  --border: #e8d5a3;
  --shadow-sm: 0 2px 8px rgba(0,0,0,.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.16);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: .25s ease;
  --font: 'Poppins', sans-serif;
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font); border: none; background: none; }
input { font-family: var(--font); }

/* ---- CONTAINER ---- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 768px) { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }

/* ---- SECTION DEFAULTS ---- */
.section { padding: 4rem 0; }
@media (min-width: 768px) { .section { padding: 5rem 0; } }

.section__header { text-align: center; margin-bottom: 2.5rem; }
.section__title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
}
.section__title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--primary);
  border-radius: 2px;
  margin: .75rem auto 0;
}
.section__sub { color: var(--muted); font-size: .95rem; margin-top: .5rem; }

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.5rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: .9rem;
  transition: var(--transition);
  white-space: nowrap;
}
.btn--primary {
  background: var(--primary);
  color: var(--white);
}
.btn--primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245,158,11,.4); }
.btn--secondary { background: var(--secondary); color: var(--white); }
.btn--secondary:hover { background: #0d9f6e; transform: translateY(-2px); }
.btn--outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn--outline:hover { background: var(--primary); color: var(--white); }
.btn--full { width: 100%; justify-content: center; }

/* ---- TOP BAR ---- */
.top-bar {
  background: var(--primary-dark);
  color: var(--white);
  font-size: .78rem;
  font-weight: 600;
  padding: .5rem 1rem;
}
.top-bar__inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .25rem;
  text-align: center;
}
@media (min-width: 768px) {
  .top-bar__inner {
    flex-direction: row;
    justify-content: center;
    gap: 2rem;
  }
}

/* ---- HEADER / NAV ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding-top: .75rem;
  padding-bottom: .75rem;
  flex-wrap: wrap;
  position: relative;
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  flex-shrink: 0;
}
.nav__logo-icon { font-size: 1.4rem; }
.nav__logo strong { color: var(--primary-dark); }

.nav__search {
  display: none;
  flex: 1;
  max-width: 420px;
  position: relative;
}
.nav__search-input {
  width: 100%;
  padding: .55rem 2.8rem .55rem 1rem;
  border: 2px solid var(--border);
  border-radius: 50px;
  font-size: .9rem;
  transition: var(--transition);
  background: var(--bg);
}
.nav__search-input:focus { outline: none; border-color: var(--primary); background: var(--white); }
.nav__search-btn {
  position: absolute;
  right: .75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-size: .9rem;
  transition: var(--transition);
}
.nav__search-btn:hover { color: var(--primary); }

@media (min-width: 768px) { .nav__search { display: flex; } }

.nav__actions {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-left: auto;
}
.nav__btn {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  font-size: 1rem;
  transition: var(--transition);
  background: var(--surface);
}
.nav__btn:hover { background: var(--primary); color: var(--white); }

.badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--accent);
  color: var(--white);
  font-size: .65rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--white);
}

.nav__hamburger {
  width: 40px;
  height: 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  background: var(--surface);
}
.nav__hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.nav__hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.active span:nth-child(2) { opacity: 0; }
.nav__hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 1024px) { .nav__hamburger { display: none; } }

.nav__mobile {
  display: none;
  width: 100%;
  padding: 1rem 0;
  border-top: 1px solid var(--border);
  order: 10;
}
.nav__mobile.open { display: block; }
.nav__links { display: flex; flex-direction: column; gap: .25rem; }
.nav__link {
  display: block;
  padding: .6rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: .95rem;
  color: var(--text);
  transition: var(--transition);
}
.nav__link:hover { background: var(--surface); color: var(--primary-dark); }

@media (min-width: 1024px) {
  .nav__mobile {
    display: flex !important;
    width: auto;
    padding: 0;
    border: none;
    order: 0;
  }
  .nav__links { flex-direction: row; gap: .25rem; }
}

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(28,25,23,.72) 0%, rgba(245,158,11,.35) 100%);
}
.hero__content {
  position: relative;
  z-index: 1;
  color: var(--white);
  padding: 5rem 1rem 3rem;
  max-width: 720px;
}
.hero__eyebrow {
  display: inline-block;
  background: rgba(255,255,255,.15);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.3);
  padding: .35rem 1rem;
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  letter-spacing: .04em;
}
.hero__title {
  font-size: clamp(2rem, 6vw, 3.6rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  text-shadow: 0 2px 12px rgba(0,0,0,.3);
}
.hero__title .highlight {
  color: var(--primary);
  background: rgba(245,158,11,.15);
  border-radius: 6px;
  padding: 0 .2em;
}
.hero__sub {
  font-size: 1rem;
  color: rgba(255,255,255,.85);
  margin-bottom: 2rem;
  max-width: 480px;
}
.hero__search {
  display: flex;
  align-items: center;
  background: var(--white);
  border-radius: 50px;
  padding: .4rem .4rem .4rem 1rem;
  gap: .5rem;
  max-width: 520px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 1.75rem;
}
.hero__search i { color: var(--muted); font-size: .95rem; flex-shrink: 0; }
.hero__search input {
  flex: 1;
  border: none;
  outline: none;
  font-size: .9rem;
  color: var(--text);
  background: transparent;
  min-width: 0;
}
.hero__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.hero__tab {
  background: rgba(255,255,255,.2);
  backdrop-filter: blur(4px);
  border: 2px solid rgba(255,255,255,.3);
  color: var(--white);
  padding: .45rem 1rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: .82rem;
  transition: var(--transition);
}
.hero__tab:hover,
.hero__tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

/* ---- CATEGORÍAS ---- */
.categorias { background: var(--white); }
.categorias__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
@media (min-width: 480px) { .categorias__grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 768px) { .categorias__grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1024px) { .categorias__grid { grid-template-columns: repeat(8, 1fr); } }

.categoria-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  padding: 1.25rem .75rem;
  border-radius: var(--radius-md);
  background: var(--bg);
  border: 2px solid transparent;
  transition: var(--transition);
  text-align: center;
  cursor: pointer;
}
.categoria-card:hover {
  border-color: var(--primary);
  background: var(--surface);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.categoria-card__emoji { font-size: 2rem; }
.categoria-card__name {
  font-size: .78rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

/* ---- PRODUCTOS ---- */
.productos { background: var(--bg); }
.productos__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  justify-content: center;
  margin-bottom: 2rem;
}
.prod-tab {
  padding: .5rem 1.1rem;
  border-radius: 50px;
  font-weight: 600;
  font-size: .85rem;
  background: var(--white);
  color: var(--muted);
  border: 2px solid var(--border);
  transition: var(--transition);
}
.prod-tab:hover { border-color: var(--primary); color: var(--primary-dark); }
.prod-tab.active { background: var(--primary); border-color: var(--primary); color: var(--white); }

.search-info {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: .9rem;
  color: var(--muted);
  font-weight: 600;
}

.productos__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}
@media (min-width: 768px) { .productos__grid { grid-template-columns: repeat(3, 1fr); gap: 1.25rem; } }
@media (min-width: 1024px) { .productos__grid { grid-template-columns: repeat(4, 1fr); } }

.producto-card {
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
}
.producto-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }

.producto-card__img-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: #f5f0e8;
}
.producto-card__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.producto-card:hover .producto-card__img-wrap img { transform: scale(1.07); }

.producto-card__badge {
  position: absolute;
  top: .6rem;
  left: .6rem;
  background: var(--accent);
  color: var(--white);
  font-size: .65rem;
  font-weight: 800;
  padding: .25rem .6rem;
  border-radius: 50px;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.producto-card__badge--new { background: var(--secondary); }
.producto-card__badge--hot { background: #ef4444; }

.producto-card__fav {
  position: absolute;
  top: .6rem;
  right: .6rem;
  width: 32px;
  height: 32px;
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  color: var(--muted);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
  border: none;
}
.producto-card__fav:hover,
.producto-card__fav.active { color: #ef4444; }
.producto-card__fav.active { background: #fef2f2; }

.producto-card__body {
  padding: .9rem .9rem 0;
  flex: 1;
}
.producto-card__species {
  font-size: .7rem;
  font-weight: 700;
  color: var(--primary-dark);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: .3rem;
}
.producto-card__name {
  font-size: .85rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: .5rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.producto-card__price {
  display: flex;
  flex-direction: column;
  gap: .1rem;
}
.producto-card__price-main {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
}
.producto-card__price-old {
  font-size: .78rem;
  color: var(--muted);
  text-decoration: line-through;
}
.producto-card__cuotas {
  font-size: .72rem;
  color: var(--secondary);
  font-weight: 600;
}
.producto-card__footer {
  padding: .75rem .9rem .9rem;
  display: flex;
  gap: .5rem;
}
.btn--add-cart {
  flex: 1;
  background: var(--primary);
  color: var(--white);
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 700;
  padding: .55rem .75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  transition: var(--transition);
}
.btn--add-cart:hover { background: var(--primary-dark); transform: translateY(-1px); }

.productos__empty {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--muted);
}
.productos__empty span { font-size: 3.5rem; display: block; margin-bottom: 1rem; }
.productos__empty p { font-size: 1.1rem; font-weight: 600; margin-bottom: 1.5rem; }

/* ---- BANNER PROMO ---- */
.banner-promo {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--accent) 100%);
  padding: 3rem 0;
  overflow: hidden;
}
.banner-promo__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}
@media (min-width: 768px) {
  .banner-promo__inner { grid-template-columns: 1fr 1.4fr; }
}
.banner-promo__img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
}
.banner-promo__img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.banner-promo__content { color: var(--white); }
.banner-promo__badge {
  display: inline-block;
  background: rgba(255,255,255,.2);
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 50px;
  padding: .3rem .9rem;
  font-size: .8rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.banner-promo__title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: .75rem;
}
.banner-promo__text {
  font-size: .95rem;
  color: rgba(255,255,255,.85);
  margin-bottom: 1.25rem;
}
.banner-promo__list {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  margin-bottom: 1.5rem;
}
.banner-promo__list li {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .88rem;
  font-weight: 600;
}
.banner-promo__list i { color: var(--surface); font-size: .9rem; }
.banner-promo__form {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.banner-promo__form input {
  flex: 1;
  min-width: 200px;
  padding: .75rem 1.25rem;
  border-radius: 50px;
  border: none;
  outline: none;
  font-size: .9rem;
  font-family: var(--font);
}
.banner-promo__form .btn--primary { background: var(--text); }
.banner-promo__form .btn--primary:hover { background: var(--surface); color: var(--text); }
.banner-promo__disclaimer {
  margin-top: .75rem;
  font-size: .8rem;
  color: rgba(255,255,255,.8);
  font-weight: 600;
}

/* ---- BLOG ---- */
.blog { background: var(--white); }
.blog__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 768px) { .blog__grid { grid-template-columns: repeat(3, 1fr); } }

.blog-card {
  background: var(--bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.blog-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.blog-card__img-wrap { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.blog-card__img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.blog-card:hover .blog-card__img-wrap img { transform: scale(1.06); }
.blog-card__tag {
  position: absolute;
  top: .75rem;
  left: .75rem;
  background: var(--primary);
  color: var(--white);
  font-size: .7rem;
  font-weight: 700;
  padding: .25rem .75rem;
  border-radius: 50px;
}
.blog-card__body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; }
.blog-card__date { font-size: .75rem; color: var(--muted); margin-bottom: .5rem; display: flex; align-items: center; gap: .35rem; }
.blog-card__title { font-size: .95rem; font-weight: 700; line-height: 1.35; margin-bottom: .6rem; flex: 1; }
.blog-card__excerpt { font-size: .82rem; color: var(--muted); margin-bottom: 1rem; line-height: 1.5; }
.blog-card__link {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .83rem;
  font-weight: 700;
  color: var(--primary-dark);
  transition: var(--transition);
}
.blog-card__link:hover { gap: .6rem; color: var(--accent); }

/* ---- TESTIMONIOS ---- */
.testimonios { background: var(--bg); }
.testimonios__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 768px) { .testimonios__grid { grid-template-columns: repeat(3, 1fr); } }

.testimonio-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-top: 4px solid var(--primary);
}
.testimonio-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.testimonio-card__pet-img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--surface);
  flex-shrink: 0;
}
.testimonio-card__pet-img img { width: 100%; height: 100%; object-fit: cover; }
.testimonio-card__stars { color: var(--primary); font-size: .9rem; display: flex; gap: .15rem; }
.testimonio-card__text { font-size: .88rem; color: var(--text); line-height: 1.6; font-style: italic; flex: 1; }
.testimonio-card__text::before { content: '"'; font-size: 1.5rem; color: var(--primary); line-height: 0; vertical-align: -6px; margin-right: 2px; }
.testimonio-card__text::after { content: '"'; font-size: 1.5rem; color: var(--primary); line-height: 0; vertical-align: -6px; margin-left: 2px; }
.testimonio-card__author { display: flex; flex-direction: column; }
.testimonio-card__author strong { font-size: .9rem; color: var(--text); }
.testimonio-card__author span { font-size: .78rem; color: var(--muted); }
.testimonio-card__author em { color: var(--primary-dark); font-style: normal; font-weight: 600; }

/* ---- FOOTER ---- */
.footer { background: var(--text); color: var(--white); }
.footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding: 3.5rem 0 2rem;
}
@media (min-width: 480px) { .footer__top { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer__top { grid-template-columns: 2fr 1fr 1fr 1fr; } }

.footer__logo {
  font-size: 1.2rem;
  font-weight: 800;
  display: block;
  margin-bottom: 1rem;
  color: var(--white);
}
.footer__logo strong { color: var(--primary); }
.footer__desc { font-size: .85rem; color: rgba(255,255,255,.65); line-height: 1.6; max-width: 280px; }
.footer__socials { display: flex; gap: .75rem; margin-top: 1.25rem; }
.footer__social {
  width: 38px;
  height: 38px;
  background: rgba(255,255,255,.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  transition: var(--transition);
  color: var(--white);
}
.footer__social:hover { background: var(--primary); transform: translateY(-3px); }

.footer__heading { font-size: .9rem; font-weight: 700; margin-bottom: 1rem; color: var(--primary); }
.footer__links { display: flex; flex-direction: column; gap: .6rem; }
.footer__links a {
  font-size: .83rem;
  color: rgba(255,255,255,.65);
  transition: var(--transition);
}
.footer__links a:hover { color: var(--primary); padding-left: .25rem; }
.footer__contact li {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .83rem;
  color: rgba(255,255,255,.65);
}
.footer__contact i { color: var(--primary); width: 16px; }

.footer__payments {
  border-top: 1px solid rgba(255,255,255,.1);
  border-bottom: 1px solid rgba(255,255,255,.1);
  padding: 1.25rem 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem;
}
.footer__payments-title {
  font-size: .8rem;
  font-weight: 700;
  color: rgba(255,255,255,.6);
  margin-right: .5rem;
  white-space: nowrap;
}
.footer__payments-icons { display: flex; flex-wrap: wrap; gap: .5rem; }
.payment-badge {
  background: rgba(255,255,255,.1);
  color: rgba(255,255,255,.8);
  font-size: .75rem;
  font-weight: 600;
  padding: .3rem .75rem;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: .35rem;
}

.footer__bottom {
  text-align: center;
  padding: 1.25rem 1rem;
  font-size: .78rem;
  color: rgba(255,255,255,.45);
}

/* ---- CART SIDEBAR ---- */
.cart-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 990;
  backdrop-filter: blur(2px);
}
.cart-overlay.open { display: block; }

.cart-sidebar {
  position: fixed;
  top: 0;
  right: 0;
  width: min(400px, 100vw);
  height: 100dvh;
  background: var(--white);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform .35s ease;
}
.cart-sidebar.open { transform: translateX(0); }

.cart-sidebar__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.cart-sidebar__header h3 { font-size: 1rem; font-weight: 700; }
.cart-sidebar__close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  color: var(--muted);
  transition: var(--transition);
}
.cart-sidebar__close:hover { background: #fecaca; color: #ef4444; }

.cart-sidebar__items { flex: 1; overflow-y: auto; padding: 1rem 1.25rem; }
.cart-empty { text-align: center; padding: 3rem 1rem; color: var(--muted); }
.cart-empty span { font-size: 3rem; display: block; margin-bottom: 1rem; }
.cart-empty p { font-weight: 600; margin-bottom: .25rem; }
.cart-empty small { font-size: .8rem; }

.cart-item {
  display: flex;
  gap: .75rem;
  padding: .75rem 0;
  border-bottom: 1px solid var(--border);
}
.cart-item__img {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
}
.cart-item__info { flex: 1; min-width: 0; }
.cart-item__name { font-size: .82rem; font-weight: 700; line-height: 1.3; margin-bottom: .35rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.cart-item__price { font-size: .85rem; font-weight: 800; color: var(--primary-dark); }
.cart-item__qty {
  display: flex;
  align-items: center;
  gap: .35rem;
  margin-top: .4rem;
}
.cart-item__qty button {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--surface);
  font-weight: 700;
  font-size: .85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}
.cart-item__qty button:hover { background: var(--primary); color: var(--white); }
.cart-item__qty span { font-size: .85rem; font-weight: 700; min-width: 20px; text-align: center; }
.cart-item__remove {
  color: var(--muted);
  font-size: .85rem;
  align-self: flex-start;
  transition: var(--transition);
  padding: .25rem;
}
.cart-item__remove:hover { color: #ef4444; }

.cart-sidebar__footer { padding: 1.25rem; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: .75rem; }
.cart-total { display: flex; justify-content: space-between; align-items: center; }
.cart-total span { font-size: .9rem; color: var(--muted); font-weight: 600; }
.cart-total strong { font-size: 1.3rem; font-weight: 800; color: var(--text); }
.cart-shipping { font-size: .78rem; color: var(--secondary); font-weight: 600; text-align: center; }

/* ---- TOAST ---- */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120px);
  background: var(--text);
  color: var(--white);
  padding: .75rem 1.5rem;
  border-radius: 50px;
  font-size: .88rem;
  font-weight: 600;
  z-index: 2000;
  transition: transform .35s cubic-bezier(.34,1.56,.64,1);
  white-space: nowrap;
  max-width: calc(100vw - 2rem);
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.success { background: var(--secondary); }
.toast.error { background: #ef4444; }
.toast.info { background: var(--primary-dark); }

/* ---- BACK TO TOP ---- */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  box-shadow: var(--shadow-md);
  z-index: 800;
  transition: var(--transition);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { background: var(--primary-dark); transform: translateY(-3px); }

/* ---- SCROLL REVEAL ---- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

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