/* ============================================================
   WaleyFX — proof.css
   Live Proof section: trade screenshots + student review images
   ============================================================ */

#proof {
  position: relative;
  overflow: hidden;
}

/* Tab switcher */
.proof-tabs {
  display: flex;
  gap: 0;
  margin-top: 48px;
  border-bottom: 1px solid rgba(201,168,76,0.15);
}
.proof-tab {
  background: none;
  border: none;
  padding: 14px 32px;
  font-family: 'DM Sans', sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-dim);
  cursor: pointer;
  position: relative;
  transition: color 0.3s ease;
}
.proof-tab::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.proof-tab:hover { color: var(--text); }
.proof-tab.active { color: var(--gold); }
.proof-tab.active::after { transform: scaleX(1); }

/* Tab panels */
.proof-panel { display: none; }
.proof-panel.active { display: block; }

/* Masonry grid */
.proof-grid {
  columns: 3;
  column-gap: 16px;
  margin-top: 36px;
}
.proof-item {
  break-inside: avoid;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  border: 1px solid rgba(201,168,76,0.08);
  transition: border-color 0.35s ease, transform 0.35s ease;
  background: var(--dark2);
}
.proof-item:hover {
  border-color: rgba(201,168,76,0.45);
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.6);
  z-index: 2;
}
.proof-item img {
  width: 100%;
  display: block;
  transition: transform 0.5s ease, filter 0.5s ease;
  filter: brightness(0.92);
}
.proof-item:hover img {
  transform: scale(1.03);
  filter: brightness(1);
}

/* Overlay on hover */
.proof-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(5,5,5,0.88) 100%);
  opacity: 0;
  transition: opacity 0.35s ease;
  display: flex;
  align-items: flex-end;
  padding: 20px;
}
.proof-item:hover .proof-item-overlay { opacity: 1; }
.proof-item-label {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
}
.proof-zoom-icon {
  position: absolute;
  top: 12px; right: 12px;
  width: 34px; height: 34px;
  background: rgba(201,168,76,0.9);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transform: scale(0.7);
  transition: opacity 0.3s ease, transform 0.3s ease;
  color: var(--black);
}
.proof-item:hover .proof-zoom-icon {
  opacity: 1;
  transform: scale(1);
}

/* ======= LIGHTBOX ======= */
.lightbox {
  display: none;
  position: fixed; inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 10px;
}
.lightbox.open { display: flex; }

.lightbox-inner {
  position: relative;
  max-width: 520px;
  width: 100%;
  animation: lbFadeIn 0.3s ease both;
}
.lightbox-inner img {
  width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border: 1px solid rgba(201,168,76,0.2);
  display: block;
}
.lightbox-caption {
  text-align: center;
  margin-top: 14px;
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
}

.lightbox-close {
  position: fixed;
  top: 16px; right: 20px;
  background: rgba(20,20,20,0.85);
  border: 1px solid rgba(201,168,76,0.25);
  border-radius: 50%;
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  font-size: 20px; line-height: 1;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  z-index: 1001;
}
.lightbox-close:hover { color: var(--gold); }

/* Prev / Next arrows */
.lightbox-prev,
.lightbox-next {
  position: absolute;
  top: 50%; transform: translateY(-50%);
  background: rgba(201,168,76,0.12);
  border: 1px solid rgba(201,168,76,0.25);
  color: var(--gold);
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  font-size: 20px;
  transition: background 0.25s, border-color 0.25s;
}
.lightbox-prev { left: -56px; }
.lightbox-next { right: -56px; }
.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(201,168,76,0.25);
  border-color: var(--gold);
}

/* Counter */
.lightbox-counter {
  position: absolute;
  bottom: -18px; left: 50%; transform: translateX(-50%);
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--text-dim);
  white-space: nowrap;
}

@keyframes lbFadeIn {
  from { opacity: 0; transform: scale(0.93); }
  to   { opacity: 1; transform: scale(1); }
}

/* ======= MOBILE CAROUSEL ======= */
.proof-carousel { display: none; } /* hidden on desktop */

@media (max-width: 600px) {
  /* Hide masonry grid, show carousel instead */
  .proof-grid    { display: none; }
  .proof-carousel { display: block; margin-top: 24px; }

  /* Carousel viewport — clips to one slide */
  .proof-carousel-track {
    display: flex;
    transition: transform 0.38s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
  }

  .proof-carousel-slide {
    min-width: 100%;
    cursor: pointer;
    border: 1px solid rgba(201,168,76,0.15);
    overflow: hidden;
    background: var(--dark2);
    position: relative;
  }
  .proof-carousel-slide img {
    width: 100%;
    display: block;
    object-fit: contain;
    max-height: 68vw;
  }

  /* Tap hint overlay */
  .proof-carousel-slide::after {
    content: 'Tap to expand';
    position: absolute;
    bottom: 10px; right: 10px;
    font-size: 10px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--gold);
    background: rgba(5,5,5,0.7);
    padding: 4px 10px;
    pointer-events: none;
  }

  /* Controls row: ← counter → */
  .proof-carousel-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 14px;
    padding: 0 4px;
  }

  .proof-carousel-btn {
    background: rgba(201,168,76,0.1);
    border: 1px solid rgba(201,168,76,0.3);
    color: var(--gold);
    width: 44px; height: 44px;
    border-radius: 50%;
    font-size: 20px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer;
    transition: background 0.25s, border-color 0.25s;
    flex-shrink: 0;
  }
  .proof-carousel-btn:active {
    background: rgba(201,168,76,0.25);
    border-color: var(--gold);
  }

  .proof-carousel-counter {
    font-size: 13px;
    letter-spacing: 2px;
    color: var(--text-dim);
    font-weight: 500;
  }
}

/* ======= RESPONSIVE (tablet) ======= */
@media (max-width: 900px) {
  .proof-grid { columns: 2; }
  .proof-tab  { padding: 12px 18px; font-size: 11px; letter-spacing: 2px; }
}
@media (max-width: 520px) {
  .proof-tabs { overflow-x: auto; }
}