/* Smart Post Showcase – frontend.css */
/* Uses CSS custom properties so each shortcode instance can have its own accent */

/* ─── Reset & Container ──────────────────────────────────────────────────── */
.sps-showcase *,
.sps-showcase *::before,
.sps-showcase *::after {
  box-sizing: border-box;
}

.sps-showcase {
  --sps-accent: #4F46E5;
  --sps-accent-light: color-mix(in srgb, var(--sps-accent) 12%, transparent);
  --sps-radius: 12px;
  --sps-gap: clamp(16px, 2.5vw, 28px);
  --sps-thumb-ratio: 56.25%; /* 16:9 */
  --sps-transition: 200ms ease;

  display: grid;
  gap: var(--sps-gap);
  width: 100%;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ─── Column Grids ───────────────────────────────────────────────────────── */
.sps-cols-1 { grid-template-columns: 1fr; }
.sps-cols-2 { grid-template-columns: repeat(2, 1fr); }
.sps-cols-3 { grid-template-columns: repeat(3, 1fr); }
.sps-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 900px) {
  .sps-cols-3,
  .sps-cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 580px) {
  .sps-cols-2,
  .sps-cols-3,
  .sps-cols-4 { grid-template-columns: 1fr; }
}

/* ─── Card Base ──────────────────────────────────────────────────────────── */
.sps-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #fff;
  border-radius: var(--sps-radius);
  overflow: hidden;
  transition: transform var(--sps-transition), box-shadow var(--sps-transition);
}

.sps-card:hover {
  transform: translateY(-3px);
}

/* Shadow style */
.sps-card-shadow .sps-card {
  box-shadow: 0 1px 3px rgba(0,0,0,.07), 0 4px 16px rgba(0,0,0,.08);
}
.sps-card-shadow .sps-card:hover {
  box-shadow: 0 4px 8px rgba(0,0,0,.08), 0 12px 32px rgba(0,0,0,.12);
}

/* Border style */
.sps-card-border .sps-card {
  border: 1.5px solid #e5e7eb;
  box-shadow: none;
}
.sps-card-border .sps-card:hover {
  border-color: var(--sps-accent);
  box-shadow: 0 0 0 3px var(--sps-accent-light);
}

/* Minimal style */
.sps-card-minimal .sps-card {
  border-radius: 0;
  border-bottom: 2px solid #f0f0f0;
  box-shadow: none;
}
.sps-card-minimal .sps-card:hover {
  border-bottom-color: var(--sps-accent);
  transform: none;
}
.sps-card-minimal .sps-card:first-child {
  border-top: 2px solid #f0f0f0;
}

/* ─── Thumbnail ──────────────────────────────────────────────────────────── */
.sps-thumb-wrap {
  position: relative;
  display: block;
  width: 100%;
  padding-top: var(--sps-thumb-ratio);
  overflow: hidden;
  text-decoration: none;
  flex-shrink: 0;
}

.sps-thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 350ms ease;
}

.sps-card:hover .sps-thumb {
  transform: scale(1.04);
}

.sps-thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,.18) 100%);
  pointer-events: none;
}

/* ─── Card Body ──────────────────────────────────────────────────────────── */
.sps-card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: clamp(16px, 2vw, 24px);
  gap: 10px;
}

.sps-card-minimal .sps-card-body {
  padding-left: 0;
  padding-right: 0;
}

/* ─── Meta Top ───────────────────────────────────────────────────────────── */
.sps-meta-top {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.sps-category {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 100px;
  background: var(--sps-accent-light);
  color: var(--sps-accent);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background var(--sps-transition), color var(--sps-transition);
  line-height: 1.6;
}

.sps-category:hover {
  background: var(--sps-accent);
  color: #fff;
}

.sps-date {
  color: #9ca3af;
  font-size: .78rem;
  white-space: nowrap;
}

/* ─── Title ──────────────────────────────────────────────────────────────── */
.sps-title {
  margin: 0;
  font-size: clamp(1rem, 1.3vw + .6rem, 1.2rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.01em;
}

.sps-title a {
  color: inherit;
  text-decoration: none;
  background-image: linear-gradient(var(--sps-accent), var(--sps-accent));
  background-repeat: no-repeat;
  background-size: 0 2px;
  background-position: 0 100%;
  transition: background-size var(--sps-transition), color var(--sps-transition);
}

.sps-title a:hover {
  color: var(--sps-accent);
  background-size: 100% 2px;
}

/* ─── Excerpt ────────────────────────────────────────────────────────────── */
.sps-excerpt {
  margin: 0;
  color: #6b7280;
  font-size: .9rem;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ─── Footer ─────────────────────────────────────────────────────────────── */
.sps-card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 12px;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid #f3f4f6;
}

.sps-card-minimal .sps-card-footer {
  border-top-color: transparent;
  padding-top: 4px;
}

.sps-read-time {
  display: none;
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.sps-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--sps-transition), color var(--sps-transition),
              border-color var(--sps-transition), box-shadow var(--sps-transition),
              transform var(--sps-transition);
  cursor: pointer;
}

/* Filled */
.sps-btn--filled {
  padding: 8px 20px;
  background: var(--sps-accent);
  color: #fff !important; /* override theme link colors */
  border: 2px solid var(--sps-accent);
  border-radius: 8px;
  font-weight: 600;
  font-size: .85rem;
  letter-spacing: .01em;
}
.sps-btn--filled:hover,
.sps-btn--filled:focus,
.sps-btn--filled:visited {
  background: var(--sps-accent);
  color: #fff !important;
  opacity: .88;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--sps-accent) 40%, transparent);
  text-decoration: none;
}

/* Outline */
.sps-btn--outline {
  padding: 8px 20px;
  background: transparent;
  color: var(--sps-accent) !important;
  border: 2px solid var(--sps-accent);
}
.sps-btn--outline:hover,
.sps-btn--outline:focus {
  background: var(--sps-accent);
  color: #fff !important;
  text-decoration: none;
}

/* Text + Arrow */
.sps-btn--text {
  padding: 0;
  background: transparent;
  color: var(--sps-accent) !important;
  border: none;
  font-size: .85rem;
  font-weight: 600;
}
.sps-btn--text:hover {
  gap: 10px;
  text-decoration: none;
}
.sps-btn--text svg {
  transition: transform var(--sps-transition);
}
.sps-btn--text:hover svg {
  transform: translateX(3px);
}

/* ─── Ad Row ─────────────────────────────────────────────────────────────── */
.sps-ad-row {
  grid-column: 1 / -1;
  width: 100%;
  text-align: center;
  padding: 8px 0;
  min-height: 90px;
}

.sps-ad-row ins.adsbygoogle {
  display: block;
}

/* ─── No Posts ───────────────────────────────────────────────────────────── */
.sps-no-posts {
  color: #9ca3af;
  text-align: center;
  padding: 2rem;
}

/* ─── Reduced Motion ─────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .sps-card,
  .sps-thumb,
  .sps-category,
  .sps-title a,
  .sps-btn,
  .sps-btn--text svg {
    transition: none !important;
  }
  .sps-card:hover {
    transform: none;
  }
}