/* ─────────────────────────────────────────────────────────────
   Page 05 — Logo & Symbol
   ───────────────────────────────────────────────────────────── */

/* Hero logo display */
.logo-hero {
  position: relative;
  padding: 96px 56px 96px;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 80% at 50% 50%, rgba(47,55,255,0.16), transparent 60%),
    linear-gradient(180deg, #000000, #050818);
  border: 1px solid rgba(255,255,255,0.08);
  isolation: isolate;
  display: flex;
  align-items: center;
  justify-content: center;
}
.logo-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.6) 0.5px, transparent 0.5px),
    radial-gradient(circle, rgba(255,255,255,0.32) 0.5px, transparent 0.5px);
  background-size: 220px 220px, 360px 360px;
  background-position: 30px 30px, 160px 90px;
  opacity: 0.5;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent 80%);
}
.logo-hero img,
.logo-hero svg {
  position: relative;
  width: clamp(280px, 50%, 580px);
  height: auto;
  z-index: 1;
}
.logo-hero .caption {
  position: absolute;
  bottom: 22px;
  left: 56px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  z-index: 2;
}
.logo-hero .caption b { color: #FFFFFF; font-weight: 500; }
.logo-hero .scale-tag {
  position: absolute;
  bottom: 22px;
  right: 56px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.55);
  z-index: 2;
}

/* Three meanings of the mark */
.meanings {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 900px) { .meanings { grid-template-columns: 1fr; } }
.meaning-card {
  position: relative;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.02);
  padding: 28px 26px 28px;
  overflow: hidden;
}
.meaning-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 80% 60% at 100% 100%, rgba(47,55,255,0.10), transparent 60%);
}
.meaning-card > * { position: relative; }
.meaning-card .ord {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: 16px;
}
.meaning-card .glyph {
  width: 90px;
  height: 90px;
  margin: 8px 0 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.meaning-card .glyph svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}
.meaning-card h4 {
  font-size: 22px;
  letter-spacing: -0.018em;
  font-weight: 600;
  margin: 0 0 4px;
  color: var(--fg-default);
}
.meaning-card .sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 16px;
}
.meaning-card .desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--fg-secondary);
  margin: 0;
}

/* Variants grid — show 4 lockups on two registers */
.variants {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
@media (max-width: 900px) { .variants { grid-template-columns: repeat(2, 1fr); } }
.variant {
  display: flex;
  flex-direction: column;
}
.variant .surface {
  height: 200px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
  position: relative;
  overflow: hidden;
}
.variant .surface.dark {
  background:
    radial-gradient(ellipse 80% 80% at 30% 30%, rgba(47,55,255,0.18), transparent 60%),
    linear-gradient(180deg, #000000, #050818);
  border: 1px solid rgba(255,255,255,0.08);
}
.variant .surface.light {
  background: #FFFFFF;
  border: 1px solid rgba(0,0,0,0.08);
}
.variant .surface svg,
.variant .surface img {
  width: 100%;
  height: auto;
  max-height: 100%;
}
.variant .surface.mark svg,
.variant .surface.mark img {
  width: 70px;
}
.variant .meta {
  padding: 12px 4px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.variant .meta .n {
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-default);
}
.variant .meta .s {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

/* Clear space diagram */
.clearspace {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}
@media (max-width: 900px) { .clearspace { grid-template-columns: 1fr; } }
.clearspace .demo {
  position: relative;
  padding: 80px;
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
}
.clearspace .demo svg.guide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.clearspace .demo .mark-wrap {
  position: relative;
  z-index: 2;
}
.clearspace .demo .mark-wrap img,
.clearspace .demo .mark-wrap svg {
  width: 280px;
  display: block;
}
.clearspace .copy {
  padding: 0;
}
.clearspace .copy h3 {
  font-size: 26px;
  letter-spacing: -0.018em;
  margin: 0 0 12px;
  font-weight: 600;
}
.clearspace .copy p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg-secondary);
  margin: 0 0 16px;
  max-width: 50ch;
}
.clearspace .copy .rule {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  border: 1px solid rgba(133,160,255,0.32);
  background: rgba(47,55,255,0.06);
  border-radius: var(--radius-lg);
  margin-top: 22px;
}
.clearspace .copy .rule .x {
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--blue-300);
  font-weight: 500;
}
.clearspace .copy .rule .t {
  font-size: 13.5px;
  color: var(--fg-secondary);
  line-height: 1.45;
}
.clearspace .copy .rule .t b { color: var(--fg-default); font-weight: 500; }

/* Minimum sizes — three logo specimens */
.minsizes {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 28px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 32px 32px 36px;
  background: rgba(255,255,255,0.02);
}
@media (max-width: 720px) { .minsizes { grid-template-columns: 1fr; } }
.minsizes .copy h4 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.012em;
  margin: 0 0 6px;
}
.minsizes .copy p {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.5;
  margin: 0;
}
.minsizes .specimens {
  display: flex;
  align-items: flex-end;
  gap: 48px;
  flex-wrap: wrap;
}
.minsizes .specimen {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
}
.minsizes .specimen svg,
.minsizes .specimen img {
  display: block;
  height: auto;
}
.minsizes .specimen .lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  text-transform: uppercase;
}
.minsizes .specimen .lbl b {
  color: var(--fg-default);
  font-weight: 500;
}

/* Don'ts grid — 6 specimens with red bar overlay */
.donts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 900px) { .donts { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .donts { grid-template-columns: 1fr; } }
.dont {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.02);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.dont .stage {
  position: relative;
  height: 180px;
  background: #050818;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.dont .stage.busy {
  background:
    repeating-linear-gradient(45deg, #2F37FF 0, #2F37FF 12px, #8452FF 12px, #8452FF 24px, #17EAEA 24px, #17EAEA 36px);
}
.dont .stage svg,
.dont .stage img { width: 60%; max-height: 70%; display: block; }
.dont .stage::after {
  content: "";
  position: absolute;
  left: 8%;
  right: 8%;
  top: 50%;
  height: 2px;
  background: var(--orange-500);
  transform: rotate(-12deg);
  opacity: 0.85;
  z-index: 2;
}
.dont .meta {
  padding: 14px 18px 18px;
  border-top: 1px solid var(--border-subtle);
}
.dont .meta .x {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange-300);
  margin-bottom: 6px;
}
.dont .meta h5 {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 4px;
  letter-spacing: -0.005em;
  color: var(--fg-default);
}
.dont .meta p {
  font-size: 12.5px;
  color: var(--fg-muted);
  line-height: 1.5;
  margin: 0;
}