/* ============================================================
   TOKENS DE DISEÑO — Marca Slot Systems
   ============================================================ */
:root {
  --bg: #0d0d0f;
  --bg-soft: #1a1d23;
  --bg-card: #15171c;
  --line: #2a2f3a;
  --ink: #f1f2f4;
  --ink-soft: #9aa2b1;

  --blue: #0a66ff;
  --blue-dark: #003380;
  --blue-light: #3385ff;
  --blue-pale: #cce0ff;

  --acc-success: #22c55e;
  --acc-info: #0b86d4;
  --acc-tech: #7c3aed;
  --acc-warn: #f59e0b;

  --font-display: "Poppins", "Segoe UI", sans-serif;
  --font-body: "Poppins", "Segoe UI", sans-serif;
  --font-mono: "Poppins", "Segoe UI", sans-serif;

  --radius: 6px;
  --gap: 1.5rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.55;
}

a { color: inherit; }

/* ============================================================
   ENCABEZADO
   ============================================================ */
.site-header {
  padding: 3rem 2rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.site-header__brand img {
  height: 44px;
  width: 44px;
  border-radius: 50%;
  flex-shrink: 0;
}

.site-header__brand span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.site-header__brand span em {
  font-style: normal;
  color: var(--blue-light);
}

.site-header__eyebrow {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-light);
  display: block;
  margin-bottom: 0.6rem;
}

.site-header h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
}

.site-header p.lead {
  max-width: 46ch;
  color: var(--ink-soft);
  font-size: 1.05rem;
  margin: 0;
  font-weight: 400;
}

.site-header p.lead a { color: var(--blue-light); text-decoration: underline; }

.site-header__meta {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
}

.site-header__meta strong {
  color: var(--ink);
  display: block;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
}

/* ============================================================
   BARRA DE FILTROS
   ============================================================ */
.filters {
  max-width: 1100px;
  margin: 2rem auto 0;
  padding: 0 2rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.filter-tab {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  color: var(--ink-soft);
  padding: 0.55rem 1.15rem;
  cursor: pointer;
  border-radius: 999px;
  transition: all 0.15s ease;
}

.filter-tab:hover { color: var(--ink); border-color: var(--blue-light); }

.filter-tab.active {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.filter-tab .count {
  color: var(--blue-pale);
  margin-left: 0.35rem;
}

.filter-tab.active .count { color: rgba(255,255,255,0.75); }

/* ============================================================
   CATÁLOGO / GRID DE FICHAS
   ============================================================ */
.catalog {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 2rem 5rem;
}

.catalog__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  position: relative;
  animation: rise 0.4s ease both;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
}

@keyframes rise {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.card__index {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.75rem;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card__index .badge {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: var(--blue);
  color: #fff;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
}

.card__preview {
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--blue-dark), var(--bg-soft));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.card__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.card__preview .initials {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.2rem;
  color: var(--blue-light);
  opacity: 0.85;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 0;
  font-weight: 600;
}

.card__cliente {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-top: -0.5rem;
}

.card p.desc {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin: 0;
  flex-grow: 1;
}

.card__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.card__stack span {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.7rem;
  color: var(--blue-light);
  background: rgba(10, 102, 255, 0.12);
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
}

.card__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
  margin-top: 0.2rem;
}

.card__cat {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.card__link {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.78rem;
  text-decoration: none;
  border: 1px solid var(--blue);
  color: var(--blue-light);
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  transition: background 0.15s ease, color 0.15s ease;
}

.card__link:hover {
  background: var(--blue);
  color: #fff;
}

.card__link.disabled {
  opacity: 0.35;
  pointer-events: none;
  border-style: dashed;
  border-color: var(--line);
  color: var(--ink-soft);
}

.empty-state {
  padding: 4rem 1rem;
  text-align: center;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}

/* ============================================================
   PIE DE PÁGINA
   ============================================================ */
.site-footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 2rem 3rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--ink-soft);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  border-top: 1px solid var(--line);
}

.site-footer a { text-decoration: underline; color: var(--blue-light); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 640px) {
  .site-header { padding: 2.5rem 1.25rem 1.5rem; }
  .filters, .catalog, .site-footer { padding-left: 1.25rem; padding-right: 1.25rem; }
  .catalog__grid { grid-template-columns: 1fr; }
}

/* Foco visible accesible */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--blue-light);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}