/* ProofStack frontend styles. Colors, fonts, and radius come from settings via CSS variables. */

.proofstack {
  --ps-primary: #0F766E;
  --ps-stars: #F59E0B;
  --ps-text: #1F2937;
  --ps-name: #111827;
  --ps-muted: #6B7280;
  --ps-card-bg: #FFFFFF;
  --ps-card-border: #E5E7EB;
  --ps-radius: 12px;
  font-family: inherit;
  color: var(--ps-text);
  box-sizing: border-box;
}
.proofstack *, .proofstack *::before, .proofstack *::after { box-sizing: border-box; }

/* Headings */
.proofstack-heading { text-align: center; margin-bottom: 2rem; }
.proofstack-title { color: var(--ps-name); font-size: 1.75rem; margin: 0 0 0.5rem; }
.proofstack-subtitle { color: var(--ps-muted); margin: 0; }
.proofstack-empty { text-align: center; color: var(--ps-muted); padding: 2rem 0; }

/* Card base */
.proofstack-card {
  background: var(--ps-card-bg);
  border-radius: var(--ps-radius);
  padding: 1.5rem;
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.proofstack-card-elevated .proofstack-card,
.proofstack-layout-featured .proofstack-card {
  border: 1px solid var(--ps-card-border);
  box-shadow: 0 4px 16px rgba(0,0,0,0.07);
}
.proofstack-card-flat .proofstack-card { border: 1px solid var(--ps-card-border); }
.proofstack-card-minimal .proofstack-card { background: transparent; border: none; padding: 1rem 0; }

.proofstack-quote {
  position: absolute; top: 0.75rem; right: 1.25rem;
  font-size: 3.5rem; line-height: 1; color: var(--ps-primary); opacity: 0.15;
  font-family: Georgia, serif; pointer-events: none;
}
.proofstack-stars { margin-bottom: 0.75rem; }
.proofstack-star-row { display: inline-flex; gap: 2px; }
.proofstack-star { width: 18px; height: 18px; }
.proofstack-star-filled path { fill: var(--ps-stars); }
.proofstack-star-empty path { fill: #D1D5DB; }
.proofstack-text { flex: 1; margin-bottom: 1rem; line-height: 1.65; color: var(--ps-text); }
.proofstack-text p:first-child { margin-top: 0; }
.proofstack-text p:last-child { margin-bottom: 0; }

.proofstack-author { display: flex; align-items: center; gap: 0.75rem; margin-top: auto; }
.proofstack-photo { width: 48px; height: 48px; object-fit: cover; flex-shrink: 0; }
.proofstack-photo-circle { border-radius: 50%; }
.proofstack-photo-rounded { border-radius: 12px; }
.proofstack-photo-square { border-radius: 4px; }
.proofstack-author-meta { display: flex; flex-direction: column; }
.proofstack-name { font-weight: 600; color: var(--ps-name); }
.proofstack-company { font-size: 0.875rem; color: var(--ps-muted); }

/* Grid */
.proofstack-grid {
  display: grid; gap: 1.5rem;
  grid-template-columns: repeat(var(--proofstack-columns, 3), 1fr);
}

/* Masonry */
.proofstack-masonry { columns: 3; column-gap: 1.5rem; }
.proofstack-masonry .proofstack-card { break-inside: avoid; margin-bottom: 1.5rem; }

/* Wall of love (compact) */
.proofstack-wall {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(var(--proofstack-columns, 3), 1fr);
}
.proofstack-wall .proofstack-card { padding: 1rem; font-size: 0.925rem; }
.proofstack-wall .proofstack-quote { font-size: 2.5rem; }

/* Featured (spotlight) */
.proofstack-featured .proofstack-card {
  max-width: 720px; margin: 0 auto; padding: 2.5rem; text-align: center;
}
.proofstack-featured .proofstack-text { font-size: 1.25rem; line-height: 1.7; }
.proofstack-featured .proofstack-author { justify-content: center; }
.proofstack-featured .proofstack-photo { width: 72px; height: 72px; }
.proofstack-featured .proofstack-star { width: 22px; height: 22px; }
.proofstack-featured .proofstack-quote { font-size: 5rem; }

/* Carousel */
.proofstack-carousel { position: relative; overflow: hidden; }
.proofstack-track { display: flex; transition: transform 0.45s ease; }
.proofstack-slide { flex: 0 0 100%; padding: 0.25rem; }
.proofstack-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--ps-card-bg); border: 1px solid var(--ps-card-border);
  color: var(--ps-primary); font-size: 1.5rem; cursor: pointer; z-index: 2;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.proofstack-prev { left: 0.5rem; }
.proofstack-next { right: 0.5rem; }
.proofstack-arrow:hover { background: var(--ps-primary); color: #fff; border-color: var(--ps-primary); }
.proofstack-dots { display: flex; justify-content: center; gap: 0.5rem; margin-top: 1rem; }
.proofstack-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: #D1D5DB; border: none; cursor: pointer; padding: 0;
}
.proofstack-dot.active { background: var(--ps-primary); }

/* Submission form */
.proofstack-form-wrap { max-width: 640px; margin: 0 auto; }
.proofstack-form .proofstack-field { margin-bottom: 1.25rem; }
.proofstack-form label, .proofstack-form legend {
  display: block; font-weight: 600; color: var(--ps-name); margin-bottom: 0.4rem;
}
.proofstack-form .required { color: #DC2626; }
.proofstack-form input[type="text"],
.proofstack-form input[type="email"],
.proofstack-form textarea {
  width: 100%; padding: 0.7rem 0.9rem;
  border: 1px solid var(--ps-card-border); border-radius: 8px;
  font-size: 1rem; font-family: inherit; color: var(--ps-text);
  background: #fff;
}
.proofstack-form input:focus, .proofstack-form textarea:focus {
  outline: 2px solid var(--ps-primary); outline-offset: 1px; border-color: var(--ps-primary);
}
.proofstack-rating-input { display: flex; flex-direction: row-reverse; justify-content: flex-end; gap: 4px; }
.proofstack-rating-input input { position: absolute; opacity: 0; pointer-events: none; }
.proofstack-rating-input label { cursor: pointer; margin: 0; padding: 2px; }
.proofstack-rating-input svg { width: 32px; height: 32px; fill: #D1D5DB; transition: fill 0.15s; }
.proofstack-rating-input label:hover svg,
.proofstack-rating-input label:hover ~ label svg,
.proofstack-rating-input input:checked ~ label svg,
.proofstack-rating-input input:checked + label svg { fill: var(--ps-stars); }
.proofstack-submit {
  background: var(--ps-primary); color: #fff; border: none;
  padding: 0.8rem 2rem; border-radius: 8px; font-size: 1rem; font-weight: 600;
  cursor: pointer;
}
.proofstack-submit:hover { filter: brightness(0.92); }
.proofstack-submit:disabled { opacity: 0.6; cursor: wait; }
.proofstack-form-message { margin-top: 1rem; padding: 0.9rem 1.1rem; border-radius: 8px; display: none; }
.proofstack-form-message.success { display: block; background: #ECFDF5; color: #065F46; border: 1px solid #A7F3D0; }
.proofstack-form-message.error { display: block; background: #FEF2F2; color: #991B1B; border: 1px solid #FECACA; }

/* Responsive */
@media (max-width: 900px) {
  .proofstack-grid, .proofstack-wall { grid-template-columns: repeat(2, 1fr); }
  .proofstack-masonry { columns: 2; }
}
@media (max-width: 600px) {
  .proofstack-grid, .proofstack-wall { grid-template-columns: 1fr; }
  .proofstack-masonry { columns: 1; }
  .proofstack-featured .proofstack-card { padding: 1.5rem; }
  .proofstack-arrow { width: 36px; height: 36px; }
}