/*
 * gsat-responde.css — Estilos de la plantilla GSAT Responde.
 *
 * Depende de main.css. Prefijo: gs-
 *
 * Paleta de acento: índigo/violeta (documentación/soporte).
 * 4 colores de categoría: orange · red · teal · blue · purple
 *
 * Estructura:
 *   1. Hero
 *   2. Filtro
 *   3. Grid de categorías + tarjetas
 *   4. Lista de guías (items + botón PDF)
 *   5. CTA
 *   6. Animaciones
 *   7. Responsive
 */

/* ─── Variables propias ──────────────────────────────────────────────── */
:root {
  --gs-indigo:      #312e81;
  --gs-indigo-2:    #1e1b4b;
  --gs-violet:      #7c3aed;
  --gs-violet-pale: rgba(124,58,237,.12);

  /* Colores por categoría */
  --gs-c-orange:  var(--color-primary);
  --gs-c-red:     #ef4444;
  --gs-c-teal:    #0d9488;
  --gs-c-blue:    #2563eb;
  --gs-c-purple:  #7c3aed;
}

/* ─── 1. Hero ──────────────────────────────────────────────────────────── */

.gs-hero {
  position: relative;
  overflow: hidden;
  padding: 6.5rem 0 5rem;
  background: linear-gradient(155deg, var(--gs-indigo) 0%, #181535 55%, var(--gs-indigo-2) 100%);
  color: var(--color-dark-on);
}

.gs-hero__backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 65% 55% at 5% 30%,  rgba(124,58,237,.3)  0%, transparent 55%),
    radial-gradient(ellipse 55% 45% at 94% 70%,  rgba(216,131,41,.18) 0%, transparent 50%);
  pointer-events: none;
}

.gs-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3.5rem;
  align-items: center;
}

.gs-hero__copy .eyebrow { margin-bottom: .75rem; }

.gs-hero__copy h1 {
  font-family: "Barlow Semi Condensed", sans-serif;
  font-size: clamp(3.5rem, 7.5vw, 7rem);
  line-height: .88;
  letter-spacing: -.04em;
  margin: 0 0 1.5rem;
  background: linear-gradient(135deg, #c4b5fd 0%, #a78bfa 40%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: gsGradient 4s ease infinite;
}

@keyframes gsGradient {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.gs-hero__lead {
  font-size: 1.1rem;
  color: rgba(244,247,251,.73);
  max-width: 54ch;
  margin: 0 0 1.5rem;
  line-height: 1.67;
}

.gs-hero__meta {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-weight: 700;
  color: rgba(196,181,253,.6);
  margin-bottom: 2rem;
}

.gs-hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }

.gs-btn--light {
  background: rgba(255,255,255,.1);
  color: var(--color-dark-on);
  border: 1px solid rgba(255,255,255,.2);
}
.gs-btn--light:hover, .gs-btn--light:focus-visible {
  background: rgba(255,255,255,.18);
  color: var(--color-dark-on);
}

/* Visual decorativo: pila de documentos */
.gs-hero__visual { position: relative; width: 160px; height: 160px; }

.gs-hero__doc-stack {
  position: relative;
  width: 100%;
  height: 100%;
}

.gs-hero__doc {
  position: absolute;
  width: 90px;
  height: 110px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255,255,255,.12);
}
.gs-hero__doc svg { width: 40%; height: 40%; }

.gs-hero__doc--1 { top: 0;   left: 0;   background: rgba(124,58,237,.25); color: #c4b5fd; transform: rotate(-8deg); }
.gs-hero__doc--2 { top: 10px; left: 18px; background: rgba(124,58,237,.18); color: #a78bfa; transform: rotate(-2deg); }
.gs-hero__doc--3 { top: 20px; left: 36px; background: rgba(216,131,41,.2);  color: var(--color-accent); transform: rotate(4deg); }
.gs-hero__doc--4 { top: 8px;  left: 54px; background: rgba(13,148,136,.2);  color: #6ee7b7; transform: rotate(10deg); }

.gs-hero__doc-count {
  position: absolute;
  bottom: 0; right: 0;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gs-violet);
  color: #fff;
  font-family: "Barlow Semi Condensed", sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(124,58,237,.45);
}

/* ─── 2. Filtro ───────────────────────────────────────────────────────── */

.gs-guides { background: var(--color-light); }

.gs-guides .section-heading { text-align: center; max-width: 64ch; margin: 0 auto 2rem; }

.gs-filter {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.gs-filter__btn {
  padding: .4rem 1.1rem;
  border-radius: 2rem;
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .03em;
  cursor: pointer;
  transition: all .2s ease;
  color: var(--color-muted);
}

.gs-filter__btn:hover  { border-color: var(--gs-violet); color: var(--gs-violet); }
.gs-filter__btn--active { background: var(--gs-violet); border-color: var(--gs-violet); color: #fff; }

/* Colores activos por categoría */
.gs-filter__btn--orange.gs-filter__btn--active { background: var(--gs-c-orange); border-color: var(--gs-c-orange); }
.gs-filter__btn--red.gs-filter__btn--active    { background: var(--gs-c-red);    border-color: var(--gs-c-red); }
.gs-filter__btn--teal.gs-filter__btn--active   { background: var(--gs-c-teal);   border-color: var(--gs-c-teal); }
.gs-filter__btn--blue.gs-filter__btn--active   { background: var(--gs-c-blue);   border-color: var(--gs-c-blue); }
.gs-filter__btn--purple.gs-filter__btn--active { background: var(--gs-c-purple); border-color: var(--gs-c-purple); }

/* ─── 3. Grid de categorías ───────────────────────────────────────────── */

.gs-cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.gs-cat-card {
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: 0 4px 18px rgba(16,32,47,.06);
  overflow: hidden;
  transition: transform .3s, box-shadow .3s;
}

.gs-cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

/* Borde superior de color por categoría */
.gs-cat-card--orange { border-top: 3px solid var(--gs-c-orange); }
.gs-cat-card--red    { border-top: 3px solid var(--gs-c-red); }
.gs-cat-card--teal   { border-top: 3px solid var(--gs-c-teal); }
.gs-cat-card--blue   { border-top: 3px solid var(--gs-c-blue); }
.gs-cat-card--purple { border-top: 3px solid var(--gs-c-purple); }

.gs-cat-card__head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.4rem 1.5rem 1.1rem;
  border-bottom: 1px solid var(--color-border);
}

.gs-cat-card__icon {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  margin-top: .1rem;
}
.gs-cat-card__icon svg { width: 100%; height: 100%; }

.gs-cat-card--orange .gs-cat-card__icon { color: var(--gs-c-orange); }
.gs-cat-card--red    .gs-cat-card__icon { color: var(--gs-c-red); }
.gs-cat-card--teal   .gs-cat-card__icon { color: var(--gs-c-teal); }
.gs-cat-card--blue   .gs-cat-card__icon { color: var(--gs-c-blue); }
.gs-cat-card--purple .gs-cat-card__icon { color: var(--gs-c-purple); }

.gs-cat-card__head h2 {
  font-family: "Barlow Semi Condensed", sans-serif;
  font-size: 1.2rem;
  letter-spacing: -.01em;
  margin: 0 0 .3rem;
  color: var(--color-secondary);
}

.gs-cat-card__badge {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .15rem .55rem;
  border-radius: var(--radius-sm);
}

.gs-cat-card--orange .gs-cat-card__badge { background: rgba(216,131,41,.12); color: var(--color-primary-strong); }
.gs-cat-card--red    .gs-cat-card__badge { background: rgba(239,68,68,.1);   color: #b91c1c; }
.gs-cat-card--teal   .gs-cat-card__badge { background: rgba(13,148,136,.12); color: #0f766e; }
.gs-cat-card--blue   .gs-cat-card__badge { background: rgba(37,99,235,.1);   color: #1d4ed8; }
.gs-cat-card--purple .gs-cat-card__badge { background: rgba(124,58,237,.1);  color: #5b21b6; }

/* ─── 4. Lista de guías ───────────────────────────────────────────────── */

.gs-guide-list {
  list-style: none;
  margin: 0;
  padding: .5rem 0;
}

.gs-guide-item {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .9rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  transition: background .2s;
}

.gs-guide-item:last-child { border-bottom: none; }
.gs-guide-item:hover { background: var(--color-surface-soft); }

.gs-guide-item__text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .2rem;
}

.gs-guide-item__text strong {
  font-size: .9rem;
  font-weight: 600;
  color: var(--color-secondary);
  line-height: 1.35;
}

.gs-guide-item__text span {
  font-size: .8rem;
  color: var(--color-muted);
  line-height: 1.5;
}

/* Botón de descarga PDF */
.gs-guide-item__dl {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .2rem;
  padding: .5rem .7rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface-soft);
  color: var(--color-muted);
  text-decoration: none;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  flex-shrink: 0;
  transition: all .2s;
}

.gs-guide-item__dl svg { width: 1.1rem; height: 1.1rem; }

.gs-guide-item__dl:hover {
  background: var(--gs-violet);
  border-color: var(--gs-violet);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(124,58,237,.3);
}

/* Indicador lateral PDF */
.gs-guide-item--has-pdf {
  border-left: 2px solid transparent;
  padding-left: calc(1.5rem - 2px);
}

.gs-cat-card--orange .gs-guide-item--has-pdf { border-left-color: rgba(216,131,41,.4); }
.gs-cat-card--red    .gs-guide-item--has-pdf { border-left-color: rgba(239,68,68,.35); }
.gs-cat-card--teal   .gs-guide-item--has-pdf { border-left-color: rgba(13,148,136,.4); }
.gs-cat-card--blue   .gs-guide-item--has-pdf { border-left-color: rgba(37,99,235,.4); }
.gs-cat-card--purple .gs-guide-item--has-pdf { border-left-color: rgba(124,58,237,.4); }

/* ─── 5. CTA ──────────────────────────────────────────────────────────── */

.gs-cta {
  position: relative;
  overflow: hidden;
  background: linear-gradient(145deg, var(--gs-indigo) 0%, var(--gs-indigo-2) 100%);
  color: var(--color-dark-on);
}

.gs-cta__backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 30% 50%, rgba(124,58,237,.25) 0%, transparent 55%),
    radial-gradient(ellipse 50% 50% at 80% 50%, rgba(216,131,41,.15) 0%, transparent 55%);
  pointer-events: none;
}

.gs-cta__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
}

.gs-cta__copy .eyebrow { margin-bottom: .75rem; }

.gs-cta__copy h2 {
  font-family: "Barlow Semi Condensed", sans-serif;
  font-size: clamp(1.8rem, 3.2vw, 2.8rem);
  line-height: 1;
  letter-spacing: -.025em;
  margin: 0 0 .9rem;
  color: var(--color-dark-on);
}

.gs-cta__copy p {
  font-size: 1rem;
  line-height: 1.68;
  color: rgba(244,247,251,.68);
  margin: 0;
  max-width: 50ch;
}

.gs-cta__actions {
  display: flex;
  flex-direction: column;
  gap: .85rem;
  min-width: 200px;
  flex-shrink: 0;
}

.gs-cta__actions .btn { text-align: center; }

/* ─── 6. Animaciones ─────────────────────────────────────────────────── */

/* Stagger hero docs */
.gs-hero__doc { animation: revealUp .5s cubic-bezier(.22,.68,0,1.2) both; }
.gs-hero__doc--1 { animation-delay: .25s; }
.gs-hero__doc--2 { animation-delay: .35s; }
.gs-hero__doc--3 { animation-delay: .43s; }
.gs-hero__doc--4 { animation-delay: .51s; }
.gs-hero__doc-count { animation: revealUp .5s cubic-bezier(.22,.68,0,1.2) .6s both; }

/* ─── 7. Responsive ─────────────────────────────────────────────────────── */

@media (max-width: 1080px) {
  .gs-cat-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  .gs-hero { padding: 5rem 0 3.5rem; }

  .gs-hero__inner    { grid-template-columns: 1fr; }
  .gs-hero__visual   { display: none; }
  .gs-cta__inner     { grid-template-columns: 1fr; }
  .gs-cta__actions   { flex-direction: row; flex-wrap: wrap; min-width: unset; }
}

@media (max-width: 560px) {
  .gs-cat-grid { grid-template-columns: 1fr; }
  .gs-filter   { gap: .4rem; }
  .gs-filter__btn { font-size: .75rem; padding: .35rem .85rem; }
}