/* ─────────────────────────────────────────────────────────────
   Page 04 — Competitive Edge
   ───────────────────────────────────────────────────────────── */

/* Opening declaration */
.edge-declaration {
  position: relative;
  padding: 80px 56px 84px;
  border-radius: var(--radius-2xl);
  background:
    radial-gradient(ellipse 80% 100% at 50% 50%, rgba(47,55,255,0.20), transparent 65%),
    linear-gradient(180deg, #000000, #050818);
  border: 1px solid rgba(255,255,255,0.10);
  overflow: hidden;
  text-align: center;
  isolation: isolate;
}
.edge-declaration::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.5) 0.5px, transparent 0.5px);
  background-size: 200px 200px;
  background-position: 30px 20px;
  opacity: 0.4;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent 85%);
}
.edge-declaration > * { position: relative; z-index: 1; }
.edge-declaration .ix {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 22px;
}
.edge-declaration .ix b { color: var(--blue-300); font-weight: 500; }
.edge-declaration h3 {
  font-size: clamp(32px, 4.2vw, 56px);
  letter-spacing: -0.026em;
  line-height: 1.05;
  font-weight: 600;
  margin: 0 0 24px;
  color: #FFFFFF;
  text-wrap: balance;
  max-width: 22ch;
  margin-inline: auto;
}
.edge-declaration h3 em {
  font-style: normal;
  color: var(--blue-300);
}
.edge-declaration .sig {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}
.edge-declaration .sig span { color: var(--blue-300); }
@media (max-width: 720px) { .edge-declaration { padding: 48px 24px 56px; } }

/* The triad */
.triad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 900px) { .triad { grid-template-columns: 1fr; } }
.triad-card {
  position: relative;
  padding: 36px 32px 36px;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(133,160,255,0.18);
  background:
    radial-gradient(ellipse 100% 60% at 0% 0%, rgba(47,55,255,0.12), transparent 65%),
    rgba(255,255,255,0.02);
  overflow: hidden;
  min-height: 460px;
  display: flex;
  flex-direction: column;
}
.triad-card .ix {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: 12px;
}
.triad-card .glyph {
  font-family: var(--font-mono);
  font-size: 84px;
  line-height: 0.9;
  letter-spacing: -0.05em;
  color: rgba(255,255,255,0.06);
  position: absolute;
  top: 24px;
  right: 28px;
  font-weight: 500;
}
.triad-card h4 {
  font-size: clamp(26px, 2.8vw, 32px);
  letter-spacing: -0.022em;
  font-weight: 600;
  line-height: 1.1;
  margin: 0 0 14px;
  color: var(--fg-default);
  text-wrap: balance;
}
.triad-card .stem {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--fg-secondary);
  margin: 0 0 24px;
}
.triad-card .proofs {
  list-style: none;
  margin: auto 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.triad-card .proofs li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 10px;
  font-size: 13px;
  color: var(--fg-default);
  line-height: 1.5;
  align-items: baseline;
}
.triad-card .proofs li::before {
  content: "→";
  color: var(--blue-300);
  font-family: var(--font-mono);
  font-size: 13px;
}

/* Onboarding inversion — paired timeline */
.onboarding-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 900px) { .onboarding-pair { grid-template-columns: 1fr; } }
.timeline-card {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 28px 28px 28px;
  background: rgba(255,255,255,0.02);
  position: relative;
  overflow: hidden;
}
.timeline-card.them { background: rgba(255,255,255,0.02); }
.timeline-card.emma {
  background:
    radial-gradient(ellipse 80% 60% at 100% 0%, rgba(47,55,255,0.14), transparent 65%),
    rgba(255,255,255,0.02);
  border-color: rgba(133,160,255,0.32);
}
.timeline-card .head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 6px;
}
.timeline-card .head .lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.timeline-card.them .head .lbl { color: var(--fg-muted); }
.timeline-card.emma .head .lbl { color: var(--blue-300); }
.timeline-card h4 {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.018em;
  margin: 0 0 18px;
  color: var(--fg-default);
}
.timeline-card .timeline {
  position: relative;
  margin: 24px 0 22px;
}
.timeline-card .timeline svg {
  width: 100%;
  height: 140px;
  display: block;
  overflow: visible;
}
.timeline-card.them .effort {
  fill: rgba(242,163,110,0.18);
  stroke: var(--orange-300);
  stroke-width: 1.2;
  stroke-dasharray: 800;
  stroke-dashoffset: 800;
  transition: stroke-dashoffset 1800ms cubic-bezier(0.22, 1, 0.36, 1) 200ms;
  opacity: 0;
  transition-property: stroke-dashoffset, opacity;
}
.timeline-card.them.is-revealed .effort {
  stroke-dashoffset: 0;
  opacity: 1;
}
.timeline-card.emma .effort {
  fill: rgba(133,160,255,0.16);
  stroke: var(--blue-300);
  stroke-width: 1.6;
  stroke-dasharray: 800;
  stroke-dashoffset: 800;
  opacity: 0;
  transition: stroke-dashoffset 1800ms cubic-bezier(0.22, 1, 0.36, 1) 400ms, opacity 600ms 400ms;
}
.timeline-card.emma.is-revealed .effort {
  stroke-dashoffset: 0;
  opacity: 1;
}
.timeline-card .timeline .axis {
  stroke: rgba(255,255,255,0.18);
  stroke-width: 1;
}
.timeline-card .timeline .gridline {
  stroke: rgba(255,255,255,0.08);
  stroke-width: 1;
  stroke-dasharray: 2 4;
}
.timeline-card .timeline .tick-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  fill: var(--fg-muted);
  text-transform: uppercase;
}
.timeline-card .timeline .moment {
  fill: #FFFFFF;
  opacity: 0;
  transition: opacity 600ms ease 1200ms;
}
.timeline-card.is-revealed .moment { opacity: 1; }
.timeline-card.them .moment-label,
.timeline-card.emma .moment-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  fill: var(--fg-secondary);
  opacity: 0;
  transition: opacity 600ms ease 1400ms;
}
.timeline-card.is-revealed .moment-label { opacity: 1; }
.timeline-card .axis-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  text-align: center;
  margin-top: 4px;
}
.timeline-card .key-claim {
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--fg-default);
  margin: 18px 0 0;
  padding: 14px 16px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius-md);
  border-left: 2px solid;
}
.timeline-card.them .key-claim { border-left-color: var(--orange-300); color: var(--fg-secondary); }
.timeline-card.emma .key-claim { border-left-color: var(--blue-300); }
.timeline-card .key-claim b {
  color: var(--fg-default);
  font-weight: 500;
}

@media (prefers-reduced-motion: reduce) {
  .timeline-card .effort {
    stroke-dashoffset: 0 !important;
    opacity: 1 !important;
    transition: none !important;
  }
}

/* Things Emma does NOT do */
.negations {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 820px) { .negations { grid-template-columns: 1fr; } }
.negation {
  position: relative;
  padding: 28px 26px 28px;
  border: 1px solid rgba(242,163,110,0.18);
  border-radius: var(--radius-xl);
  background:
    radial-gradient(ellipse 100% 60% at 0% 0%, rgba(242,163,110,0.06), transparent 65%),
    rgba(255,255,255,0.02);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 230px;
}
.negation .x {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(242,163,110,0.4);
  display: grid;
  place-items: center;
  color: var(--orange-300);
  font-family: var(--font-mono);
  font-size: 14px;
}
.negation .crossed {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.018em;
  color: var(--fg-muted);
  margin: 0;
  text-decoration: line-through;
  text-decoration-color: rgba(242,163,110,0.4);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 4px;
}
.negation .reason {
  font-size: 14px;
  line-height: 1.55;
  color: var(--fg-secondary);
  margin: 0;
}
.negation .reason b { color: var(--fg-default); font-weight: 500; }

/* Strategic implications */
.implications {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.implications .row {
  display: grid;
  grid-template-columns: 50px 1fr 1fr;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-subtle);
  gap: 22px;
}
.implications .row:last-child { border-bottom: 0; }
@media (max-width: 720px) {
  .implications .row { grid-template-columns: 36px 1fr; gap: 14px; }
  .implications .row .effect { grid-column: 1 / -1; padding-left: 50px; font-size: 13px; color: var(--fg-muted); margin-top: -8px; }
}
.implications .row.head {
  background: rgba(255,255,255,0.025);
  padding: 12px 22px;
}
.implications .row.head > div {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.implications .ix {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--blue-300);
}
.implications .lever {
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--fg-default);
}
.implications .effect {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--fg-secondary);
}

/* "Begin / Become" capstone */
.capstone {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: stretch;
  position: relative;
}
@media (max-width: 720px) { .capstone { grid-template-columns: 1fr; } .capstone .conn { display: none; } }
.capstone .panel {
  padding: 36px 32px 38px;
  border-radius: var(--radius-xl);
  border: 1px solid;
  position: relative;
  overflow: hidden;
}
.capstone .panel.begin {
  background: rgba(255,255,255,0.02);
  border-color: var(--border-default);
}
.capstone .panel.become {
  background:
    radial-gradient(ellipse 80% 100% at 50% 50%, rgba(47,55,255,0.20), transparent 65%),
    linear-gradient(180deg, #000000, #050818);
  border-color: rgba(133,160,255,0.32);
  color: #FFFFFF;
}
.capstone .conn {
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue-300);
  position: relative;
  padding: 0 14px;
}
.capstone .conn::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--blue-300) 30%, var(--blue-300) 70%, transparent);
  transform: translateX(-50%);
  opacity: 0.5;
}
.capstone .panel .ix {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-300);
  margin-bottom: 14px;
}
.capstone .panel h4 {
  font-size: clamp(26px, 3vw, 36px);
  letter-spacing: -0.024em;
  line-height: 1.1;
  font-weight: 600;
  margin: 0 0 12px;
}
.capstone .panel p {
  font-size: 14.5px;
  line-height: 1.55;
  margin: 0;
}
.capstone .panel.begin p { color: var(--fg-secondary); }
.capstone .panel.become p { color: rgba(255,255,255,0.78); }