:root {
  --bg: #f5f7fb;
  --card: #fff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --primary: #1e40af;       /* navy del texto LIFTANE */
  --primary-dark: #1e3a8a;  /* navy más profundo */
  --primary-soft: #dbeafe;  /* azul lavanda claro */
  --accent: #06b6d4;        /* cyan del circuito */
  --accent-soft: #cffafe;
  --danger: #dc2626;
  --warn: #ea580c;
  --ok: #16a34a;
  --shadow: 0 1px 2px rgba(15,23,42,.06), 0 4px 12px rgba(15,23,42,.04);
  --radius: 12px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

/* ── nav ── */
.nav {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; padding: 10px 24px;
  display: flex; align-items: center; gap: 24px;
}
.brand {
  font-weight: 800; font-size: 22px; letter-spacing: -.5px;
  color: var(--text); display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.brand-logo {
  width: 140px; height: 140px; object-fit: contain;
  transition: transform .35s cubic-bezier(.34, 1.56, .64, 1), filter .35s ease;
  will-change: transform, filter;
  transform-origin: center;
}
.brand:hover .brand-logo {
  transform: scale(1.08) translateY(-3px);
  filter: drop-shadow(0 12px 22px rgba(6, 182, 212, .55)) drop-shadow(0 0 14px rgba(30, 64, 175, .25));
}
.brand-dot { width: 10px; height: 10px; background: var(--primary); border-radius: 50%; }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 36px;
  padding: 10px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff !important;
  font-weight: 700;
  font-size: 14px;
  line-height: 1;
  letter-spacing: .01em;
  border: 1px solid transparent;
  box-shadow: 0 6px 16px -6px rgba(30,64,175,.5);
  transition: transform .15s ease, box-shadow .2s ease, filter .2s ease;
  text-decoration: none;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 22px -6px rgba(30,64,175,.55); text-decoration: none; filter: brightness(1.05); }
.nav-cta:active { transform: translateY(0); }
.nav-cta svg { width: 17px; height: 17px; }
.nav-cta.active {
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  box-shadow: 0 6px 20px -4px rgba(6,182,212,.45), 0 0 0 3px rgba(30,64,175,.12);
}

.nav-links { display: flex; gap: 8px; flex: 1; align-items: center; margin-left: 8px; }
.nav-links a {
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
  text-decoration: none;
  line-height: 1;
}
.nav-links a:hover {
  background: var(--bg);
  color: var(--text);
  text-decoration: none;
}
.nav-links a.active {
  background: var(--primary-soft);
  color: var(--primary-dark);
  border-color: rgba(30,64,175,.18);
}
.nav-actions { display: flex; gap: 10px; align-items: center; }
.cart-badge {
  background: var(--primary); color: #fff; border-radius: 999px;
  padding: 2px 8px; font-size: 12px; font-weight: 700; margin-left: 4px;
}

/* ── containers ── */
.wrap { max-width: 1200px; margin: 0 auto; padding: 24px; }
.wrap-narrow { max-width: 720px; margin: 0 auto; padding: 24px; }

/* ── hero ── */
.hero {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 55%, #06b6d4 100%);
  color: #fff; padding: 60px 24px; text-align: center;
}
.hero h1 { margin: 0 0 8px; font-size: 38px; letter-spacing: -1px; }
.hero p { margin: 0; font-size: 18px; opacity: .9; }

/* ── layout ── */
.layout { display: grid; grid-template-columns: 240px 1fr; gap: 24px; }
@media (max-width: 768px) { .layout { grid-template-columns: 1fr; } }

.sidebar {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  height: fit-content; position: sticky; top: 80px;
}
.sidebar h3 { margin: 0 0 10px; font-size: 13px; text-transform: uppercase; color: var(--muted); letter-spacing: .5px; }
.cat-list { list-style: none; padding: 0; margin: 0; }
.cat-list li a {
  display: block; padding: 8px 10px; border-radius: 8px; color: var(--text);
  font-size: 14px;
}
.cat-list li a:hover { background: var(--bg); text-decoration: none; }
.cat-list li a.active { background: var(--primary-soft); color: var(--primary-dark); font-weight: 600; }

/* ── cards / products ── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 18px;
}
.product-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; transition: transform .12s ease, box-shadow .12s ease;
  display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.product-img {
  aspect-ratio: 1/1; background: #f1f5f9; display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.product-img img { width: 100%; height: 100%; object-fit: cover; }
.product-img-empty { color: #cbd5e1; font-size: 48px; }
.product-body { padding: 14px; flex: 1; display: flex; flex-direction: column; }
.product-cat { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
.product-name { margin: 4px 0 8px; font-weight: 600; font-size: 15px; }
.product-price { font-size: 18px; font-weight: 700; color: var(--primary-dark); margin-top: auto; }
.product-stock { font-size: 12px; color: var(--muted); margin-top: 4px; }

/* ── forms / buttons ── */
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; box-shadow: var(--shadow);
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px; border-radius: 8px; border: 1px solid transparent;
  font-weight: 600; font-size: 14px; cursor: pointer; transition: background .12s ease;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 10px; font-size: 13px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

.field { margin-bottom: 14px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 4px; color: var(--text); }
.field input, .field textarea, .field select {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-family: inherit; background: #fff;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft);
}

/* ── table ── */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 14px; }
th { font-weight: 600; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
tr:last-child td { border-bottom: none; }

/* ── badges ── */
.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-pendiente { background: #fef3c7; color: #92400e; }
.badge-confirmada { background: #dbeafe; color: #1e40af; }
.badge-pagada { background: #dcfce7; color: #166534; }
.badge-enviada { background: #e9d5ff; color: #6b21a8; }
.badge-cancelada { background: #fee2e2; color: #991b1b; }

/* ── alerts ── */
.alert { padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 16px; }
.alert-error { background: #fee2e2; color: #991b1b; }
.alert-success { background: #dcfce7; color: #166534; }
.alert-info { background: #dbeafe; color: #1e40af; }

/* ── empty ── */
.empty {
  text-align: center; padding: 60px 20px; color: var(--muted);
}
.empty h2 { color: var(--text); margin: 0 0 6px; }

/* ── footer ── */
.footer {
  border-top: 1px solid var(--border); margin-top: 60px; padding: 24px;
  text-align: center; color: var(--muted); font-size: 13px;
}

/* ── search ── */
.search-bar {
  display: flex; gap: 10px; margin-bottom: 20px;
}
.search-bar input { flex: 1; padding: 10px 14px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; }

/* ── brands carousel ── */
.brands {
  background: #fff;
  padding: 28px 0 30px;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  position: relative;
}
.brands-label {
  text-align: center;
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
  font-weight: 700;
}
.brands-viewport {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent 0%, #000 8%, #000 92%, transparent 100%);
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 8%, #000 92%, transparent 100%);
}
.brands-track {
  display: flex;
  width: max-content;
  animation: brands-scroll 38s linear infinite;
}
.brands-track:hover { animation-play-state: paused; }
.brands-row {
  display: flex;
  align-items: center;
  gap: 64px;
  padding-right: 64px;
  flex-shrink: 0;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  height: 44px;
  white-space: nowrap;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: #94a3b8;
  filter: grayscale(1);
  opacity: .75;
  transition: filter .25s, opacity .25s, color .25s, transform .25s;
  cursor: default;
  user-select: none;
}
.brand-mark:hover {
  filter: grayscale(0);
  opacity: 1;
  transform: translateY(-2px);
}
.brand-mark sup { font-size: .45em; vertical-align: top; margin-left: 1px; opacity: .7; }

/* Per-brand stylings */
.m-xerox   { font-family: Georgia, 'Times New Roman', serif; font-weight: 700; font-size: 30px; letter-spacing: -.5px; }
.m-xerox:hover { color: #CC0033; }
.m-hp      { font-family: 'Trebuchet MS', sans-serif; font-weight: 700; font-size: 32px; letter-spacing: -3px; font-style: italic; }
.m-hp:hover { color: #0096D6; }
.m-canon   { font-family: Georgia, serif; font-weight: 700; font-size: 28px; font-style: italic; letter-spacing: -1px; }
.m-canon:hover { color: #BC0024; }
.m-brother { font-family: Helvetica, Arial, sans-serif; font-weight: 700; font-size: 26px; letter-spacing: .5px; }
.m-brother:hover { color: #00529C; }
.m-epson   { font-family: Helvetica, Arial, sans-serif; font-weight: 800; font-size: 24px; letter-spacing: 1px; }
.m-epson:hover { color: #003399; }
.m-konica  { font-family: Helvetica, Arial, sans-serif; font-weight: 800; font-size: 16px; letter-spacing: 2px; }
.m-konica:hover { color: #002C5F; }
.m-ricoh   { font-family: Helvetica, Arial, sans-serif; font-weight: 800; font-size: 26px; letter-spacing: 2px; }
.m-ricoh:hover { color: #CE0E2D; }
.m-kyocera { font-family: Helvetica, Arial, sans-serif; font-weight: 800; font-size: 22px; letter-spacing: 2px; }
.m-kyocera:hover { color: #DA291C; }
.m-lexmark { font-family: 'Trebuchet MS', sans-serif; font-weight: 700; font-size: 26px; letter-spacing: -.5px; }
.m-lexmark:hover { color: #008542; }
.m-samsung { font-family: Helvetica, Arial, sans-serif; font-weight: 800; font-size: 22px; letter-spacing: 2px; }
.m-samsung:hover { color: #1428A0; }

@keyframes brands-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .brands-track { animation: none; }
}