/* =============================================================================
   IntelliBOM · intellibom.ca · Scenario 2 · Ethereal Glass
   blocks.css — features / compare / toc / footer
   Pairs with styles.css (shell) and sections.css (hero/viewport/stats/sec-head).
   ============================================================================= */

/* -----------------------------------------------------------------------------
   1. FEATURES — asymmetric zigzag full-width rows (S402)
   ---------------------------------------------------------------------------*/
.features {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--s-section) var(--pad-x);
}
.features__stack {
  display: grid;
  gap: clamp(48px, 6vw, 88px);
}
.feature {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.3fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  padding: clamp(28px, 3vw, 40px);
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 24px;
  -webkit-backdrop-filter: blur(22px);
          backdrop-filter: blur(22px);
  overflow: hidden;
  transition:
    border-color 320ms var(--ease),
    box-shadow 480ms var(--ease-glass);
}
.feature::before {
  content: "";
  position: absolute;
  top: 0;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.14), transparent);
}
.feature--reverse {
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.95fr);
}
.feature--reverse .feature__text { order: 2; }
.feature--reverse .feature__shot { order: 1; }
.feature:hover {
  border-color: rgba(16, 185, 129, 0.28);
  box-shadow: 0 32px 80px -24px rgba(16, 185, 129, 0.22);
}
.feature--accent {
  border-color: rgba(16, 185, 129, 0.18);
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.03), var(--glass));
}

/* feature text column */
.feature__text {
  display: grid;
  gap: 18px;
  align-content: center;
}
.feature__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.feature__role {
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--emerald);
  padding: 5px 12px;
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 4px;
  background: var(--emerald-soft);
}
.feature__no {
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--steel-2);
  letter-spacing: 0.18em;
  font-variant-numeric: tabular-nums;
}
.feature__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(24px, 2.3vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--white);
  text-wrap: balance;
}
.feature__title em {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 700;
  color: var(--emerald);
  letter-spacing: -0.005em;
}
.feature__body {
  margin: 0;
  font-size: clamp(15px, 1vw, 17px);
  line-height: 1.65;
  color: var(--steel);
  text-wrap: pretty;
}

/* feature__shot becomes a window-chrome frame */
.feature__shot {
  margin: 0;
  position: relative;
  background: var(--void-2);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  overflow: hidden;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 30px 60px -25px rgba(0, 0, 0, 0.7),
    0 0 60px -20px rgba(16, 185, 129, 0.18);
}
.feature__shot--portrait { max-width: 480px; margin-inline: auto; }
.feature__shot-btn {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  position: relative;
  overflow: hidden;
}
.feature__shot-btn img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 700ms var(--ease-glass);
}
.feature__shot:hover .feature__shot-btn img { transform: scale(1.02); }

/* Window chrome bar (looks like a Fusion palette title bar) */
.winchrome {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: linear-gradient(to bottom, var(--void-3), var(--void-2));
  border-bottom: 1px solid var(--line);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--steel-2);
}
.winchrome__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--steel-3);
  box-shadow: 0 0 0 1px var(--line-strong);
}
.winchrome__dot--accent { background: var(--emerald); box-shadow: 0 0 8px var(--emerald-glow); }
.winchrome__name { color: var(--steel); }
.winchrome__meta { color: var(--steel-3); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; }

/* Click-to-zoom badge */
.zoom-badge {
  position: absolute;
  bottom: 14px;
  right: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 11px 7px 9px;
  background: rgba(5, 5, 5, 0.78);
  -webkit-backdrop-filter: blur(10px);
          backdrop-filter: blur(10px);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-family: var(--f-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--steel);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 260ms var(--ease), transform 260ms var(--ease), border-color 260ms var(--ease);
  pointer-events: none;
}
.zoom-badge svg { width: 12px; height: 12px; color: var(--emerald); }
.zoom-badge--corner {
  bottom: 12px;
  right: 12px;
  padding: 7px;
}
.zoom-badge--accent svg { color: var(--emerald-2); }
.feature__shot:hover .zoom-badge,
.compare__frame:hover .zoom-badge { opacity: 1; transform: translateY(0); border-color: rgba(16, 185, 129, 0.5); }

/* Feature tags */
.feature__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 4px 0 0;
  padding: 0;
  list-style: none;
}
.feature__tags li {
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--steel);
  letter-spacing: 0.12em;
  padding: 5px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--void-2);
}

/* Stack to single column at narrow viewports */
@media (max-width: 1040px) {
  .feature,
  .feature--reverse {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .feature--reverse .feature__text { order: 1; }
  .feature--reverse .feature__shot { order: 2; }
  .feature__shot--portrait { max-width: 100%; }
}

/* -----------------------------------------------------------------------------
   2. COMPARISON
   ---------------------------------------------------------------------------*/
.compare {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--s-section) var(--pad-x);
}
.compare__split {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.compare__vs {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.12em;
  color: var(--void);
  background: var(--emerald);
  border: 4px solid var(--void);
  border-radius: 50%;
  box-shadow: 0 0 40px var(--emerald-glow), 0 0 80px var(--emerald-glow);
}
.compare__side {
  padding: 18px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 20px;
  -webkit-backdrop-filter: blur(20px);
          backdrop-filter: blur(20px);
  display: grid;
  gap: 14px;
}
.compare__side--after {
  border-color: rgba(16, 185, 129, 0.22);
  box-shadow: inset 0 0 60px rgba(16, 185, 129, 0.04);
}
.compare__tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  font-family: var(--f-mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--steel-2);
  background: var(--void-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  width: fit-content;
}
.compare__tag--accent {
  color: var(--emerald);
  border-color: rgba(16, 185, 129, 0.3);
  background: var(--emerald-soft);
}
.compare__frame {
  margin: 0;
  position: relative;
  background: var(--void-2);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  overflow: hidden;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 24px 48px -20px rgba(0, 0, 0, 0.7);
  transition: box-shadow 480ms var(--ease-glass);
}
.compare__side--after .compare__frame {
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 24px 48px -20px rgba(0, 0, 0, 0.7),
    0 0 60px -20px rgba(16, 185, 129, 0.22);
}
.compare__btn {
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  position: relative;
  overflow: hidden;
}
.compare__btn img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 700ms var(--ease-glass);
}
.compare__frame:hover .compare__btn img { transform: scale(1.025); }
.compare__pins {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.pin {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--steel);
  background: var(--void-2);
  border: 1px solid var(--line);
  border-radius: 6px;
}
.pin__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}
.pin__dot--caution { background: var(--caution); box-shadow: 0 0 8px rgba(250, 204, 21, 0.55); }
.pin__dot--emerald { background: var(--emerald); box-shadow: 0 0 8px var(--emerald-glow); }
.pin__txt { color: var(--steel); }

/* -----------------------------------------------------------------------------
   3. TABLE OF CONTENTS
   ---------------------------------------------------------------------------*/
.toc {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--s-section) var(--pad-x);
}
.toc__table {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 20px;
  overflow: hidden;
  -webkit-backdrop-filter: blur(22px);
          backdrop-filter: blur(22px);
}
.toc__row {
  display: grid;
  grid-template-columns: 76px 1fr 120px 110px;
  align-items: center;
  padding: 22px 28px;
  border-bottom: 1px solid var(--line);
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--steel);
  transition: background 260ms var(--ease);
}
.toc__row:last-child { border-bottom: none; }
.toc__row--head {
  padding: 14px 28px;
  background: rgba(0, 0, 0, 0.22);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--steel-3);
  pointer-events: none;
}
.toc__row:not(.toc__row--head):hover {
  background: rgba(16, 185, 129, 0.05);
}
.toc__num {
  color: var(--emerald);
  font-weight: 700;
  letter-spacing: 0.12em;
  font-size: 14px;
}
.toc__desc {
  color: var(--white);
  font-family: var(--f-display);
  font-weight: 500;
  font-size: 16px;
  letter-spacing: -0.01em;
  line-height: 1.45;
}
.toc__status {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--steel-3);
  text-transform: uppercase;
}
.toc__cta {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--emerald);
  text-align: right;
  transition: transform 260ms var(--ease);
}
.toc__row:not(.toc__row--head):hover .toc__cta {
  transform: translateX(5px);
}

/* -----------------------------------------------------------------------------
   4. FOOTER
   ---------------------------------------------------------------------------*/
.foot {
  max-width: var(--max);
  margin: 0 auto;
  padding: 60px var(--pad-x) 48px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 20px;
}
.foot__line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.foot__mark {
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--steel-3);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.foot__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--steel-3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.foot__dot { opacity: 0.45; }