:root {
  --purple: #6d63a6;
  --teal: #23a688;
  --cyan: #22aec2;
  --ink: #1c2130;
  --ink-dim: #5b6272;
  --bg: #f4f5f8;
  --surface: #ffffff;
  --border: #e3e5ec;
  --whatsapp: #25d366;
  --whatsapp-dark: #1da851;
  --radius: 14px;
  --gradient: linear-gradient(120deg, var(--purple), var(--teal) 55%, var(--cyan));
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
}

h1, h2, h3, h4 { font-family: inherit; }

a { color: inherit; }

/* ============ HEADER ============ */
.sticky-top {
  position: sticky;
  top: 0;
  z-index: 40;
}

.topbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex: none;
}
.brand-logo { width: 38px; height: 38px; border-radius: 9px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-sub { font-size: 10.5px; color: var(--ink-dim); }

.search-wrap {
  flex: 1 1 320px;
  min-width: 220px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 999px;
  padding: 10px 16px;
  transition: border-color 0.15s ease;
}
.search-wrap:focus-within { border-color: var(--teal); }
.search-icon { color: var(--ink-dim); flex: none; }
.search-wrap input {
  border: none;
  outline: none;
  background: transparent;
  width: 100%;
  font-size: 14px;
  color: var(--ink);
}
.search-wrap input::placeholder { color: #9aa0af; }

.btn-whatsapp-header {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--whatsapp);
  color: #04210f;
  font-weight: 700;
  font-size: 13px;
  padding: 11px 18px;
  border-radius: 999px;
  text-decoration: none;
  white-space: nowrap;
  flex: none;
  transition: background 0.15s ease, transform 0.15s ease;
}
.btn-whatsapp-header:hover { background: var(--whatsapp-dark); color: #fff; transform: translateY(-1px); }

/* ============ HERO ============ */
.hero {
  max-width: 900px;
  margin: 0 auto;
  padding: 48px 20px 28px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.25;
  margin: 0 0 14px;
  color: var(--ink);
}
.hero h1 span {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p {
  color: var(--ink-dim);
  font-size: 15.5px;
  max-width: 620px;
  margin: 0 auto;
}
.hero-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.btn-primary, .btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14.5px;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 8px 20px -6px rgba(35, 166, 136, 0.5);
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-secondary {
  background: var(--surface);
  border: 1.5px solid var(--border);
  color: var(--ink);
}
.btn-secondary:hover { border-color: var(--teal); color: var(--teal); }

/* ============ TRUST BAR ============ */
.trust-bar {
  max-width: 1280px;
  margin: 10px auto 0;
  padding: 0 20px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.trust-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  text-align: left;
}
.trust-icon { font-size: 22px; }
.trust-card h3 { font-size: 14.5px; margin: 8px 0 4px; }
.trust-card p { font-size: 12.5px; color: var(--ink-dim); margin: 0; line-height: 1.4; }

/* ============ CATEGORY NAV ============ */
.cat-nav {
  max-width: 1280px;
  margin: 44px auto 0;
  padding: 0 20px;
}
.cat-nav h2, .featured h2, .catalog h2, .why-c2wa h2 {
  font-size: 20px;
  margin: 0 0 16px;
}
.cat-nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.cat-tile {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.cat-tile:hover { border-color: var(--teal); transform: translateY(-2px); }
.cat-tile img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  background: #fff;
  border-radius: 10px;
  padding: 6px;
  flex: none;
  border: 1px solid var(--border);
}
.cat-tile-label { font-size: 14px; font-weight: 700; line-height: 1.3; }
.cat-tile-count { font-size: 11.5px; color: var(--ink-dim); }

/* ============ FEATURED (isca) ============ */
.featured {
  max-width: 1280px;
  margin: 44px auto 0;
  padding: 0 20px;
}
.featured-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.featured-card {
  background: var(--surface);
  border: 1.5px solid var(--teal);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}
.featured-card .card-media { aspect-ratio: 4 / 3; }
.featured-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--gradient);
  color: #fff;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 6px;
  z-index: 2;
}

/* ============ CATALOG ============ */
.catalog {
  max-width: 1280px;
  margin: 44px auto 0;
  padding: 0 20px;
}
.filters {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  margin-bottom: 18px;
}
.filter-btn {
  flex: none;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--ink-dim);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s ease;
}
.filter-btn:hover { color: var(--ink); border-color: var(--teal); }
.filter-btn.active {
  background: var(--gradient);
  border-color: transparent;
  color: #fff;
  font-weight: 700;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 16px;
}

.card, .featured-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover { border-color: var(--teal); transform: translateY(-2px); }

.card-media {
  aspect-ratio: 1 / 1;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
}
.card-media:focus-visible { outline: 2px solid var(--teal); outline-offset: -2px; }
.card-media img { width: 100%; height: 100%; object-fit: contain; padding: 14px; }

.card-body {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.card-code { font-size: 11px; color: var(--ink-dim); font-family: "Courier New", monospace; }
.card-name { font-size: 14.5px; font-weight: 700; line-height: 1.3; min-height: 2.6em; }
.card-spec { font-size: 12px; color: var(--ink-dim); line-height: 1.35; flex: 1; }

.card-price-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-top: 4px;
}
.card-price { font-size: 18px; font-weight: 800; color: var(--ink); }
.card-price-from { font-size: 11px; color: var(--ink-dim); font-weight: 500; display: block; }

.card-cta {
  margin-top: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--whatsapp);
  color: #04210f;
  font-weight: 700;
  font-size: 13px;
  padding: 10px 12px;
  border-radius: 10px;
  text-decoration: none;
  transition: background 0.15s ease;
}
.card-cta:hover { background: var(--whatsapp-dark); color: #fff; }
.card-cta.volume { background: var(--gradient); color: #fff; }
.card-cta.volume:hover { filter: brightness(1.08); }

.empty-state {
  text-align: center;
  color: var(--ink-dim);
  font-size: 13.5px;
  padding: 30px 0;
}

/* ============ WHY C2WA ============ */
.why-c2wa {
  max-width: 780px;
  margin: 56px auto 0;
  padding: 32px 24px;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
}
.why-c2wa h2 { margin-bottom: 12px; }
.why-c2wa p { color: var(--ink-dim); font-size: 14.5px; line-height: 1.6; margin: 0; }

/* ============ FOOTER ============ */
.footer {
  max-width: 1280px;
  margin: 50px auto 0;
  padding: 32px 20px 90px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 16px;
  flex: none;
}
.footer-brand img { width: 32px; height: 32px; border-radius: 8px; }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  flex: 1;
}
.footer-grid h4 { font-size: 12.5px; margin: 0 0 4px; color: var(--ink); }
.footer-grid p { font-size: 12.5px; color: var(--ink-dim); margin: 0; }
.footer-note {
  text-align: center;
  color: var(--ink-dim);
  font-size: 11.5px;
  margin-top: 28px;
  opacity: 0.8;
}

/* ============ FAB WHATSAPP ============ */
.fab-whatsapp {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--whatsapp);
  color: #04210f;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.22);
  z-index: 40;
  transition: transform 0.15s ease, background 0.15s ease;
}
.fab-whatsapp:hover { background: var(--whatsapp-dark); transform: scale(1.06); color: #fff; }

.fab-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--whatsapp);
  animation: fab-pulse 2.2s ease-out infinite;
  pointer-events: none;
}
@keyframes fab-pulse {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(1.9); opacity: 0; }
}

.fab-bubble {
  position: absolute;
  right: 68px;
  bottom: 10px;
  background: var(--ink);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 10px 14px;
  border-radius: 10px;
  width: 190px;
  line-height: 1.35;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.18);
  opacity: 0;
  transform: translateX(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
}
.fab-whatsapp:hover .fab-bubble,
.fab-whatsapp.show-bubble .fab-bubble {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 640px) {
  .fab-bubble { display: none; }
}