/* ===================== PAGE INTRO (no hero) ===================== */
#gloss-head {
  position: relative;
  padding: 170px 0 40px;
  text-align: center;
  overflow: hidden;
  background: var(--bg);
}

#gloss-head::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(0,204,255,.08), transparent 70%),
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(123,45,255,.06), transparent 70%);
  pointer-events: none;
}

#gloss-head::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(255,255,255,.012) 0, rgba(255,255,255,.012) 1px, transparent 1px, transparent 42px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.012) 0, rgba(255,255,255,.012) 1px, transparent 1px, transparent 42px);
  opacity: .55;
  pointer-events: none;
}

.gloss-head-inner {
  position: relative;
  z-index: 2;
  max-width: 840px;
  margin: 0 auto;
  padding: 0 32px;
}

.gloss-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--cyan);
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(0,204,255,.06);
  border: 1px solid rgba(0,204,255,.2);
  margin-bottom: 24px;
  opacity: 0;
  animation: fade-up .7s var(--ease) .2s both;
}

.gloss-eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(0,204,255,.6);
  animation: pulse 1.8s ease-in-out infinite;
}

.gloss-title {
  font-size: clamp(38px, 5.8vw, 76px);
  font-weight: 300;
  line-height: 1.05;
  letter-spacing: -.025em;
  color: #fff;
  margin-bottom: 20px;
}

.gloss-title .rl { display: inline-block; }

.gloss-title .and {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.gloss-sub {
  font-size: 15px;
  font-weight: 300;
  color: #9ea3b4;
  line-height: 1.7;
  max-width: 560px;
  margin: 0 auto 28px;
  opacity: 0;
  animation: fade-up .8s var(--ease) .9s both;
}

.gloss-stats {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  font-size: 11px;
  font-weight: 400;
  color: #9095a5;
  letter-spacing: .05em;
  padding: 8px 18px;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 999px;
  opacity: 0;
  animation: fade-up .8s var(--ease) 1.1s both;
}

.gloss-stats .sep {
  width: 3px; height: 3px; border-radius: 50%; background: #333;
}

.gloss-stats strong {
  color: #aaa;
  font-weight: 500;
}

/* ===================== SEARCH + ALPHABET NAV (sticky) ===================== */
.gloss-controls {
  position: sticky;
  top: 72px;
  z-index: 20;
  background: var(--bg);
  border-bottom: 1px solid rgba(255,255,255,.06);
  padding: 20px 0 22px;
  margin-bottom: 40px;
}

.gloss-controls-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  align-items: center;
}

.gloss-search {
  position: relative;
  width: 100%;
  max-width: 560px;
}

.gloss-search svg {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: #9095a5;
  pointer-events: none;
  transition: color .25s;
}

.gloss-search:focus-within svg { color: var(--cyan); }

.gloss-search input {
  width: 100%;
  padding: 14px 48px 14px 50px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  color: #fff;
  font-size: 14px;
  font-weight: 300;
  font-family: inherit;
  letter-spacing: .01em;
  transition: border-color .25s, background .25s, box-shadow .25s;
}

.gloss-search input::placeholder { color: #82869a; }

.gloss-search input:focus {
  outline: none;
  border-color: rgba(0,204,255,.3);
  background: rgba(255,255,255,.05);
  box-shadow: 0 0 0 4px rgba(0,204,255,.06);
}

.gloss-search-clear {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 30px; height: 30px;
  border: none;
  background: rgba(255,255,255,.05);
  color: #aaa;
  border-radius: 8px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  transition: background .2s, color .2s;
  font-family: inherit;
}

.gloss-search-clear.visible { display: flex; }
.gloss-search-clear:hover { background: rgba(255,255,255,.1); color: #fff; }

.gloss-alphabet {
  display: flex;
  gap: 3px;
  flex-wrap: wrap;
  justify-content: center;
  background: rgba(255,255,255,.02);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 14px;
  padding: 6px;
}

.gloss-letter-btn {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .04em;
  color: #9ea3b4;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  transition: color .2s, background .2s, border-color .2s, transform .2s;
  font-family: inherit;
}

.gloss-letter-btn:hover {
  color: #ddd;
  background: rgba(255,255,255,.04);
  transform: translateY(-1px);
}

.gloss-letter-btn.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(0,204,255,.2), rgba(123,45,255,.14));
  border-color: rgba(0,204,255,.3);
  box-shadow: 0 4px 12px rgba(0,204,255,.18);
}

.gloss-letter-btn:disabled {
  color: #787d8d;
  cursor: not-allowed;
  pointer-events: none;
}

/* ===================== CONTENT ===================== */
.gloss-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px 80px;
}

.gloss-section {
  margin-bottom: 72px;
  scroll-margin-top: 210px;
}

.gloss-section.hidden { display: none; }

.gloss-section-head {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--l-border);
}

.gloss-section-letter {
  font-size: clamp(56px, 8vw, 96px);
  font-weight: 300;
  line-height: .9;
  letter-spacing: -.05em;
  background: linear-gradient(135deg, var(--cyan) 0%, var(--purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  padding: 0 6px;
}

.gloss-section-info {
  padding-bottom: 12px;
  color: var(--l-muted);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.gloss-section-info strong {
  color: var(--l-text);
  font-weight: 500;
}

.gloss-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.gloss-term {
  position: relative;
  padding: 22px 24px 20px;
  background: var(--l-bg-alt);
  border: 1px solid var(--l-border);
  border-radius: 14px;
  transition: background .25s, border-color .25s, transform .3s var(--ease), box-shadow .3s ease;
  overflow: hidden;
}

.gloss-term::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 2px; height: 0;
  background: linear-gradient(to bottom, var(--cyan), var(--purple));
  transition: height .35s var(--ease);
  border-radius: 2px;
}

.gloss-term:hover {
  background: var(--l-bg-alt);
  border-color: rgba(123,45,255,.28);
  transform: translateX(4px);
  box-shadow: 0 8px 22px rgba(15,20,35,.06);
}

.gloss-term:hover::before { height: 100%; }

.gloss-term-name {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--l-text);
  margin-bottom: 8px;
  letter-spacing: -.005em;
  line-height: 1.35;
}

.gloss-term-name::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cyan);
  margin-top: 9px;
  flex-shrink: 0;
  box-shadow: 0 0 6px rgba(0,204,255,.5);
}

.gloss-term:hover .gloss-term-name::before {
  background: var(--purple);
  box-shadow: 0 0 8px rgba(123,45,255,.6);
}

.gloss-term-def {
  font-size: 12.5px;
  font-weight: 300;
  color: var(--l-muted);
  line-height: 1.7;
  padding-left: 12px;
}

/* Highlight (search matches) */
.gloss-term mark {
  background: rgba(0,204,255,.22);
  color: var(--l-text);
  padding: 0 2px;
  border-radius: 3px;
  font-weight: 500;
}

/* Empty state */
.gloss-empty {
  text-align: center;
  padding: 80px 20px;
  color: #9095a5;
  font-size: 14px;
  font-weight: 300;
  display: none;
}

.gloss-empty.visible { display: block; }

.gloss-empty svg {
  margin: 0 auto 16px;
  display: block;
  opacity: .3;
}

.gloss-empty h3 {
  font-size: 18px;
  color: #999;
  font-weight: 400;
  margin-bottom: 8px;
}

/* ===================== RESPONSIVE ===================== */
@media (max-width: 768px) {
  #gloss-head { padding: 130px 0 30px; }
  .gloss-head-inner { padding: 0 20px; }
  .gloss-title { font-size: 38px; }
  .gloss-controls { top: 64px; padding: 16px 0 20px; }
  .gloss-controls-inner { padding: 0 20px; gap: 14px; }
  .gloss-alphabet {
    gap: 2px;
    padding: 5px;
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    width: 100%;
  }
  .gloss-alphabet::-webkit-scrollbar { display: none; }
  .gloss-letter-btn {
    width: 30px; height: 30px; font-size: 11px;
    flex-shrink: 0;
  }
  .gloss-container { padding: 0 20px 60px; }
  .gloss-grid { grid-template-columns: 1fr; }
  .gloss-section { margin-bottom: 56px; scroll-margin-top: 180px; }
  .gloss-section-head { flex-direction: column; align-items: flex-start; gap: 2px; }
  .gloss-stats { font-size: 10px; gap: 12px; padding: 7px 14px; }
}