/* proof.css — Field Evidence section */

.proof {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
}

.proof::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--hairline) 1px, transparent 1px),
    linear-gradient(90deg, var(--hairline) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 30%, #000 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 30%, #000 20%, transparent 70%);
  opacity: 0.18;
  pointer-events: none;
  z-index: 0;
}

.proof > .container { position: relative; z-index: 1; }

.proof-top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  align-items: end;
  gap: 60px;
  margin-bottom: 64px;
}

.proof-meta {
  text-align: right;
  align-self: end;
}

.proof-meta-line {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent);
  letter-spacing: 0.22em;
}

/* Live dot — shared */
.dot-live {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15), 0 0 10px var(--accent-glow);
  animation: dotPulse 1.8s ease-in-out infinite;
  flex-shrink: 0;
  display: inline-block;
}
@keyframes dotPulse {
  0%, 100% { opacity: 0.6; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.15); }
}

/* ============ GRID ============ */
.proof-grid {
  display: grid;
  gap: 28px;
  margin-bottom: 28px;
}
.proof-grid-top {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.proof-grid-bottom {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 40px;
}

/* ============ CARD ============ */
.proof-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, rgba(15, 23, 19, 0.65), rgba(10, 16, 13, 0.85));
  border: 1px solid var(--hairline);
  border-radius: 4px;
  overflow: hidden;
  transition: transform 0.5s cubic-bezier(0.2, 0.7, 0.2, 1),
              border-color 0.4s ease,
              box-shadow 0.5s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.proof-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 4px;
  pointer-events: none;
  box-shadow: 0 0 0 1px transparent inset;
  transition: box-shadow 0.4s ease;
}

.proof-card:hover {
  transform: translateY(-6px);
  border-color: rgba(34, 197, 94, 0.55);
  box-shadow:
    0 24px 48px -24px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(34, 197, 94, 0.35),
    0 0 60px -20px rgba(34, 197, 94, 0.45);
}

.proof-card:hover::after {
  box-shadow: 0 0 0 1px rgba(34, 197, 94, 0.4) inset;
}

/* ============ FRAME (image area) ============ */
.proof-frame {
  position: relative;
  overflow: hidden;
  background: #050807;
}

.proof-card-lg .proof-frame { aspect-ratio: 16 / 10; }
.proof-card-sm .proof-frame { aspect-ratio: 4 / 5; }

.proof-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  transform: scale(1);
  transition: transform 1.2s cubic-bezier(0.2, 0.7, 0.2, 1),
              filter 0.6s ease;
  filter: saturate(0.95) contrast(1.02) brightness(0.98);
}
.proof-card:hover .proof-frame img {
  transform: scale(1.03);
  filter: saturate(1) contrast(1.05) brightness(1);
}

/* Dark bottom gradient overlay */
.proof-frame-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0) 30%, rgba(0,0,0,0) 55%, rgba(0,0,0,0.85) 100%),
    linear-gradient(180deg, rgba(34,197,94,0.06), transparent 35%);
  pointer-events: none;
}

/* Subtle scanline-style grid over image */
.proof-frame-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(34,197,94,0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.4;
  mix-blend-mode: screen;
  pointer-events: none;
}

/* Corner brackets */
.proof-frame-corner {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--accent);
  opacity: 0.7;
  pointer-events: none;
  transition: opacity 0.4s ease, width 0.4s ease, height 0.4s ease;
}
.proof-frame-corner.tl { top: 12px; left: 12px; border-right: none; border-bottom: none; }
.proof-frame-corner.tr { top: 12px; right: 12px; border-left: none; border-bottom: none; }
.proof-frame-corner.bl { bottom: 12px; left: 12px; border-right: none; border-top: none; }
.proof-frame-corner.br { bottom: 12px; right: 12px; border-left: none; border-top: none; }
.proof-card:hover .proof-frame-corner {
  opacity: 1;
  width: 18px;
  height: 18px;
}

/* Top status row */
.proof-frame-top {
  position: absolute;
  top: 16px;
  left: 32px;
  right: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  pointer-events: none;
}

.proof-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 9px;
  background: rgba(7, 11, 9, 0.7);
  border: 1px solid var(--hairline);
  color: var(--accent);
  letter-spacing: 0.22em;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.proof-kind {
  color: var(--text-faint);
  letter-spacing: 0.22em;
  font-size: 10px;
}

/* Bottom CTA on hover */
.proof-frame-bottom {
  position: absolute;
  bottom: 16px;
  left: 32px;
  right: 32px;
  display: flex;
  justify-content: flex-end;
  pointer-events: none;
}
.proof-cta {
  color: var(--accent);
  letter-spacing: 0.24em;
  font-size: 10.5px;
  padding: 6px 10px;
  background: rgba(7, 11, 9, 0.8);
  border: 1px solid rgba(34, 197, 94, 0.4);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.35s ease, transform 0.4s ease;
}
.proof-card:hover .proof-cta {
  opacity: 1;
  transform: translateY(0);
}

/* ============ BODY ============ */
.proof-body {
  padding: 22px 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--hairline-soft);
  background: linear-gradient(180deg, rgba(15, 23, 19, 0.4), rgba(7, 11, 9, 0.7));
}

.proof-category {
  color: var(--accent);
  letter-spacing: 0.24em;
  font-size: 10.5px;
}

.proof-caption {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--text);
  text-wrap: pretty;
}
.proof-caption-sm {
  font-size: 16px;
  font-family: var(--font-body);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.4;
  color: var(--text);
}

.proof-source {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-faint);
  letter-spacing: 0.18em;
  font-size: 10.5px;
}
.proof-source-sep { opacity: 0.5; }

/* Footnote */
.proof-footnote {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--hairline);
  color: var(--text-dim);
  letter-spacing: 0.22em;
  font-size: 10.5px;
  background: rgba(7, 11, 9, 0.5);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .proof-top {
    grid-template-columns: 1fr;
    align-items: start;
  }
  .proof-meta { text-align: left; }
  .proof-grid-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proof-grid-bottom { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proof-grid-bottom .proof-card:last-child { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
  .proof { padding: 80px 0 70px; }
  .proof-top { margin-bottom: 40px; gap: 24px; }
  .proof-grid-top,
  .proof-grid-bottom {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .proof-grid-bottom .proof-card:last-child { grid-column: auto; }
  .proof-card-lg .proof-frame { aspect-ratio: 16 / 11; }
  .proof-card-sm .proof-frame { aspect-ratio: 4 / 3; }
  .proof-frame-top, .proof-frame-bottom { left: 16px; right: 16px; }
  .proof-body { padding: 18px 20px 20px; }
  .proof-caption { font-size: 17px; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .proof-card, .proof-frame img, .proof-cta, .proof-frame-corner, .dot-live {
    transition: none !important;
    animation: none !important;
  }
  .proof-card:hover { transform: none; }
  .proof-card:hover .proof-frame img { transform: scale(1.02); }
}