/* IEMS5718 Phase 1 - Product page */
.product-wrap{
  display: grid;
  grid-template-columns: 1.3fr .9fr;
  gap: 1rem;
  margin-top: .75rem;
}

.gallery{
  grid-column: 1;
  grid-row: 1;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(21,24,36,.45);
  box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.gallery .main-img{
  position: relative;
  aspect-ratio: 16/10;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(255,255,255,.03);
}
.gallery .main-img img{ width: 100%; height: 100%; object-fit: cover; }
.gallery .main-img .gallery-nav{
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  pointer-events: none;
}
.gallery .main-img .gallery-nav button{
  pointer-events: auto;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(11,12,16,.6);
  color: var(--text);
  cursor: pointer;
  transition: transform .12s ease, background .15s ease, border-color .15s ease;
}
.gallery .main-img .gallery-nav button:hover{
  background: rgba(11,12,16,.78);
  border-color: rgba(124,92,255,.35);
}
.gallery .main-img .gallery-nav button:active{ transform: translateY(1px); }
.gallery .thumbs{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .55rem;
  padding: .75rem;
}
.gallery .thumb{
  aspect-ratio: 1/1;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.03);
  overflow: hidden;
  cursor: pointer;
  padding: 0;
  appearance: none;
}
.gallery .thumb.is-active{
  border-color: rgba(124,92,255,.55);
  box-shadow: 0 0 0 2px rgba(124,92,255,.2);
}
.gallery .thumb:focus-visible{ outline: none; box-shadow: var(--ring); }
.gallery .thumb img{ width: 100%; height: 100%; object-fit: cover; }

.compare{
  grid-column: 1 / -1;
  grid-row: 2;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  background: rgba(21,24,36,.40);
  box-shadow: 0 18px 45px rgba(0,0,0,.28);
  padding: .9rem;
}
.compare-head{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: .75rem;
}
.compare-head h3{ margin: 0; font-size: 1.05rem; }
.compare-head .muted{ margin: 0; color: var(--muted); font-size: .9rem; }
.compare-box{
  position: relative;
  aspect-ratio: 16/9;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.15);
}
.compare-box img{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.compare-top{
  position: absolute;
  inset: 0;
  width: 50%;
  overflow: hidden;
}
.compare-range{
  position: absolute;
  left: .8rem;
  right: .8rem;
  bottom: .8rem;
  width: calc(100% - 1.6rem);
}
.details{
  grid-column: 2;
  grid-row: 1;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius);
  padding: 1rem;
  background: rgba(21,24,36,.45);
  box-shadow: 0 10px 30px rgba(0,0,0,.22);
}
.details h2{
  margin: 0 0 .35rem 0;
  font-size: 1.35rem;
}
.details .desc{
  margin: 0 0 .85rem 0;
  color: var(--muted);
  line-height: 1.6;
}
.details .buy{
  display: grid;
  gap: .65rem;
}
.details .buy .row{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}
.details .buy .row .price{
  font-size: 1.45rem;
}
.details .buy .row .ship{
  color: var(--muted);
  font-size: .92rem;
}
.details .add-btn{
  width: 100%;
  padding: .8rem .9rem;
  border-radius: 14px;
  border: 1px solid rgba(124,92,255,.55);
  background: rgba(124,92,255,.14);
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}
.details .add-btn:hover{ background: rgba(124,92,255,.22); }

.spec{
  margin-top: 1rem;
  border-top: 1px solid rgba(255,255,255,.10);
  padding-top: .9rem;
}
.spec h3{
  margin: 0 0 .55rem 0;
  font-size: 1.05rem;
}
.spec dl{
  margin: 0;
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: .45rem .75rem;
  color: var(--muted);
}
.spec dt{ color: var(--text); opacity: .9; }

.review-section{
  margin-top: 1.5rem;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 1.1rem;
  background: linear-gradient(135deg, rgba(124,92,255,.12) 0%, rgba(21,24,36,.6) 55%, rgba(45,212,191,.08) 100%);
  box-shadow: 0 18px 45px rgba(0,0,0,.32);
}
.review-header-bar{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: .9rem;
}
.review-stats{
  display: flex;
  gap: .6rem;
}
.review-stat{
  border-radius: 14px;
  padding: .5rem .75rem;
  background: rgba(9,12,22,.7);
  border: 1px solid rgba(124,92,255,.25);
  display: grid;
  gap: .2rem;
  min-width: 90px;
  text-align: center;
}
.review-stat .label{ color: var(--muted); font-size: .8rem; }
.review-stat strong{ font-size: 1.05rem; }
.review-toolbar{ display: flex; justify-content: flex-end; margin-bottom: .8rem; }
.review-form{
  display: grid;
  gap: .9rem;
  margin-bottom: 0;
}
.review-form-row label{
  display: block;
  margin-bottom: .35rem;
  font-weight: 700;
}
.review-form-row textarea,
.review-form-row input{
  width: 100%;
  border-radius: 12px;
  border: 1px solid rgba(124,92,255,.35);
  background: rgba(9,12,22,.7);
  color: var(--text);
  padding: .6rem .75rem;
}
.review-form-row textarea{ min-height: 120px; }
.review-list{
  display: grid;
  gap: .85rem;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 16px;
  background: rgba(10,13,22,.7);
  padding: .2rem 0;
}
.review-list .empty-state{
  margin: .9rem;
}
.review-card{
  border: 0;
  border-bottom: 1px solid rgba(255,255,255,.06);
  border-radius: 0;
  padding: .95rem 1.1rem;
  background: transparent;
}
.review-card:last-child{ border-bottom: 0; }
.review-header{
  display: flex;
  justify-content: space-between;
  gap: .75rem;
  align-items: flex-start;
  flex-wrap: wrap;
}
.review-identity{ display: flex; gap: .6rem; align-items: center; }
.review-avatar{
  width: 34px; height: 34px; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid rgba(124,92,255,.35);
  background: rgba(124,92,255,.15);
  color: var(--text); font-weight: 700;
}
.review-rating{
  display: inline-flex;
  align-items: baseline;
  gap: .25rem;
  padding: .35rem .6rem;
  border-radius: 999px;
  background: rgba(124,92,255,.14);
  border: 1px solid rgba(124,92,255,.45);
  font-weight: 700;
}
.review-rating .label{ color: var(--muted); font-size: .82rem; font-weight: 600; }
.review-author{
  font-weight: 700;
  margin: 0;
}
.review-meta{
  margin: .15rem 0 0;
  color: var(--muted);
  font-size: .85rem;
}
.review-actions{
  display: flex;
  gap: .4rem;
  align-items: center;
  margin-top: .6rem;
}
.review-actions form{ margin: 0; }
.review-body{
  margin: .6rem 0 0;
  color: #dfe6ff;
  line-height: 1.6;
}
.reply-list{
  margin-top: .75rem;
  display: grid;
  gap: .6rem;
  padding-left: .75rem;
  border-left: 2px solid rgba(124,92,255,.35);
}
.reply-item{
  padding: .6rem;
  border-radius: 12px;
  background: rgba(10,14,26,.75);
}
.reply-head{ display: flex; align-items: flex-start; justify-content: space-between; gap: .5rem; }
.reply-author{
  font-weight: 600;
  margin: 0;
}
.reply-meta{
  margin: .2rem 0 0;
  color: var(--muted);
  font-size: .82rem;
}
.reply-body{
  margin: .5rem 0 0;
  color: #d2dbff;
}
.reply-form{
  margin-top: .75rem;
  display: grid;
  gap: .45rem;
}
.reply-form textarea{
  width: 100%;
  border-radius: 10px;
  border: 1px solid rgba(124,92,255,.35);
  background: rgba(9,12,22,.7);
  color: var(--text);
  padding: .5rem .65rem;
}
.reply-empty{
  color: var(--muted);
  font-size: .85rem;
}
.btn.btn-ghost{
  border: 1px solid rgba(124,92,255,.35);
  background: transparent;
  color: var(--text);
}

.review-modal{
  position: fixed;
  inset: 0;
  display: none;
  place-items: center;
  z-index: 300;
}
.review-modal.is-open{ display: grid; }
.review-modal-backdrop{
  position: absolute;
  inset: 0;
  background: rgba(5,7,12,.7);
}
.review-modal-card{
  position: relative;
  z-index: 2;
  width: min(560px, 92vw);
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(9,12,22,.95);
  box-shadow: 0 24px 60px rgba(0,0,0,.4);
  padding: 1rem;
}
.review-modal-header{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: .75rem;
}
.review-modal-header h4{ margin: 0; }

@media (max-width: 900px){
  .product-wrap{ grid-template-columns: 1fr; }
  .gallery,
  .details,
  .compare{
    grid-column: auto;
    grid-row: auto;
  }
}