/* ── CATALOG LAYOUT ── */
.cat-layout {
  display: flex;
  min-height: calc(100vh - 68px);
  padding-top: 68px;
}

/* ── SIDEBAR ── */
aside {
  width: var(--sb);
  flex-shrink: 0;
  position: fixed;
  top: 68px; left: 0; bottom: 0;
  overflow-y: auto;
  background: var(--bg2);
  border-right: 1px solid var(--brd-b);
  z-index: 100;
  transition: transform .3s;
  box-shadow: 2px 0 12px rgba(0,0,0,.1);
}
[data-theme="light"] aside {
  box-shadow: 2px 0 16px rgba(0,0,0,.15);
}
aside::-webkit-scrollbar { width: 3px; }
aside::-webkit-scrollbar-thumb { background: var(--gold-d); }

/* ── SIDEBAR HEADER ── */
.sb-hd {
  padding: 1.2rem 1.3rem 1.1rem;
  border-bottom: 1px solid var(--brd-b);
  display: flex; align-items: center; gap: .7rem;
  background: var(--bg3);
}
.sb-sym { opacity: .45; flex-shrink: 0; }
.sb-tag {
  font-size: .92rem;
  color: var(--text-d);
  font-style: italic;
  line-height: 1.5;
}

/* ── RITE BLOCKS ── */
.rite-h {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 1.3rem;
  cursor: pointer;
  border-bottom: .5px solid var(--brd);
  transition: background .2s;
  user-select: none;
  gap: .5rem;
}
.rite-h:hover, .rite-h.open { background: var(--bg3); }

.rite-label {
  font-family: 'Cinzel', serif;
  font-size: .9rem;
  letter-spacing: .09em;
  color: var(--gold);
  font-weight: 600;
  line-height: 1.3;
}
[data-theme="light"] .rite-label { color: var(--gold-d); }

.rite-full {
  font-size: .82rem;
  color: var(--text-d);
  font-style: italic;
  margin-top: 2px;
  line-height: 1.4;
}
[data-theme="light"] .rite-full { color: #7A6E5E; }

.chev {
  font-size: .82rem;
  color: var(--gold-d);
  transition: transform .22s;
  flex-shrink: 0;
}
.chev.r { transform: rotate(90deg); }

/* ── SECTION BLOCKS ── */
.sec-block { border-bottom: .5px solid var(--brd); }

.sec-h {
  padding: .75rem 1.3rem .75rem 2rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
  transition: background .15s;
  user-select: none;
}
.sec-h:hover { background: rgba(201,160,38,.07); }

.sec-name {
  font-family: 'Cinzel', serif;
  font-size: .68rem;
  letter-spacing: .16em;
  color: var(--text-d);
  text-transform: uppercase;
}
[data-theme="light"] .sec-name { color: #6A5E4E; }

.sc { font-size: .78rem; color: var(--gold-d); transition: transform .22s; }
.sc.r { transform: rotate(90deg); }

.sec-body { display: none; }
.sec-body.open { display: block; }

/* ── DEGREE ITEMS ── */
.deg-item, .flat-deg {
  padding: .62rem 1.3rem .62rem 2.6rem;
  cursor: pointer;
  font-size: .96rem;
  font-style: italic;
  color: var(--text-d);
  transition: all .18s;
  border-left: 2px solid transparent;
  line-height: 1.5;
  display: block;
}
.flat-deg { padding-left: 2rem; }

[data-theme="light"] .deg-item,
[data-theme="light"] .flat-deg { color: #5A5040; }

.deg-item:hover, .flat-deg:hover {
  color: var(--text);
  background: rgba(201,160,38,.07);
}
.deg-item.active, .flat-deg.active {
  color: var(--gold);
  border-left-color: var(--gold);
  background: rgba(201,160,38,.1);
  font-style: normal;
  font-weight: 500;
}
[data-theme="light"] .deg-item.active,
[data-theme="light"] .flat-deg.active {
  color: var(--gold-d);
  border-left-color: var(--gold-d);
}

/* ── MAIN CONTENT ── */
main {
  margin-left: var(--sb);
  flex: 1;
  padding: 2.5rem 2.5rem 4rem;
  min-height: calc(100vh - 68px);
}

.c-head { margin-bottom: 2rem; padding-bottom: 1.4rem; border-bottom: .5px solid var(--brd); }
.c-bc {
  font-family: 'Cinzel', serif;
  font-size: .56rem;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--gold-d);
  margin-bottom: .5rem;
  display: flex; align-items: center; gap: .5rem;
}
.c-bc::before { content: ''; display: block; width: 18px; height: .5px; background: var(--gold-d); }
.c-title {
  font-family: 'Cinzel', serif;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--text);
  line-height: 1.2;
}

/* ── PRODUCT GRID ── */
.prod-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(185px, 1fr));
  gap: 1.3rem;
}
.pc { background: var(--bg3); border: .5px solid var(--brd); transition: border-color .3s, transform .25s; }
.pc:hover { border-color: var(--brd-b); transform: translateY(-3px); }
.pc-img {
  aspect-ratio: 1; background: var(--bg4);
  display: flex; align-items: center; justify-content: center;
  position: relative; border-bottom: .5px solid var(--brd); overflow: hidden;
}
.pc-img svg { width: 50%; height: 50%; opacity: .13; transition: opacity .3s; }
.pc:hover .pc-img svg { opacity: .22; }
.pc-type {
  position: absolute; bottom: .55rem; right: .65rem;
  font-family: 'Cinzel', serif;
  font-size: .52rem;
  letter-spacing: .14em;
  color: var(--gold-d);
  text-transform: uppercase;
  opacity: .75;
}
.pc-body { padding: .9rem; }
.pc-name {
  font-family: 'Cinzel', serif;
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--text);
  margin-bottom: .3rem;
  line-height: 1.4;
}
.pc-desc {
  font-size: .9rem;
  color: var(--text-d);
  font-style: italic;
  line-height: 1.6;
  margin-bottom: .9rem;
  min-height: 50px;
}
[data-theme="light"] .pc-desc { color: #6A5E4E; }
.pc-add {
  width: 100%; padding: .65rem;
  font-family: 'Cinzel', serif;
  font-size: .58rem;
  letter-spacing: .18em;
  background: transparent;
  color: var(--gold-d);
  border: .5px solid var(--brd-b);
  cursor: pointer;
  transition: all .25s;
}
.pc-add:hover { background: var(--gold); color: #07070C; border-color: var(--gold); }

/* ── WELCOME ── */
.cat-welcome {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; text-align: center; min-height: 65vh; gap: 1.5rem;
}
.cat-welcome-sym { opacity: .06; }
.cat-welcome h2 { font-family: 'Cinzel', serif; font-size: 1.4rem; letter-spacing: .08em; color: var(--text); }
.cat-welcome p { font-size: 1rem; color: var(--text-d); font-style: italic; max-width: 360px; line-height: 1.8; }

/* ── MOBILE ── */
@media (max-width: 820px) {
  :root { --sb: 0px; }
  aside {
    transform: translateX(-100%);
    width: 300px;
    box-shadow: 4px 0 20px rgba(0,0,0,.25);
    top: 68px;
  }
  [data-theme="light"] aside { box-shadow: 4px 0 20px rgba(0,0,0,.18); }
  aside.open { transform: translateX(0); }
  main { margin-left: 0; padding: 1.4rem 1.1rem 3rem; }
  .prod-grid { grid-template-columns: repeat(auto-fill, minmax(145px, 1fr)); gap: .85rem; }
}