/* Quantum Impact — aligned with ETHSUPERPOSITION v2.0 dark quantum visual system. */
:root{
  --paper: #050505;
  --paper-raised: rgba(13,15,24,0.85);
  --line: rgba(255,255,255,0.08);
  --line-strong: rgba(255,45,170,0.28);
  --ink: #ffffff;
  --ink-dim: #94a3b8;
  --ink-faint: #475569;
  --indigo: #8b6bff;
  --teal: #4ee3ff;
  --gold: #ff2daa;
  --magenta: #ff2daa;
  --magenta-light: #ff4fbf;

  --font-serif: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}
*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--paper) url('assets/quantum-wallpaper.png') 48% 44% / 118% auto fixed no-repeat;
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  animation: qi-wallpaper-drift 24s ease-in-out infinite alternate;
}
@keyframes qi-wallpaper-drift{ from{ background-position:46% 40%; background-size:116% auto; } to{ background-position:54% 57%; background-size:126% auto; } }
@media (prefers-reduced-motion: reduce){ body{ animation:none; } html{ scroll-behavior: auto; } }

a{ color: var(--magenta-light); }
h1, h2{ font-family: var(--font-serif); color: var(--ink); font-weight: 700; letter-spacing: -0.03em; }

/* ===== Header ===== */
.qi-header{
  position: sticky; top: 0; z-index: 30;
  background: rgba(5,5,5,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.qi-header-inner{
  max-width: 1180px; margin: 0 auto;
  padding: 16px max(20px, env(safe-area-inset-left)) 16px max(20px, env(safe-area-inset-right));
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
}
.qi-back{
  font-family: var(--font-mono); font-size: 0.82rem; text-decoration: none;
  color: var(--ink-dim);
}
.qi-back:hover{ color: var(--teal); }
.qi-header-title{
  font-family: var(--font-serif); font-weight: 600; font-size: 1.05rem;
  color: var(--ink);
}
.qi-toc-toggle{
  display: none;
  font-family: var(--font-mono); font-size: 0.8rem;
  background: transparent; border: 1px solid var(--line-strong);
  border-radius: 12px; padding: 8px 12px; color: var(--ink);
  cursor: pointer;
}
@media (max-width: 900px){ .qi-toc-toggle{ display: inline-block; } }

/* ===== Table of contents ===== */
.qi-toc{
  position: sticky; top: 68px;
  float: left;
  width: 210px;
  margin-left: max(24px, calc(50% - 620px));
  padding: 28px 0;
  display: flex; flex-direction: column; gap: 2px;
}
.qi-toc-label{
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--ink-faint);
  text-transform: uppercase; letter-spacing: 0.06em; margin: 0 0 8px;
}
.qi-toc a{
  font-size: 0.86rem; text-decoration: none; color: var(--ink-dim);
  padding: 6px 0; border-left: 2px solid transparent; padding-left: 10px;
}
.qi-toc a:hover{ color: var(--teal); border-left-color: var(--teal); }
.qi-toc a.active{ color: var(--teal); border-left-color: var(--teal); font-weight: 600; }
@media (max-width: 900px){
  .qi-toc{
    display: none;
    position: static; float: none; width: auto; margin: 0;
    padding: 14px max(20px, env(safe-area-inset-left));
    background: var(--paper-raised);
    border-bottom: 1px solid var(--line);
  }
  .qi-toc.open{ display: flex; }
  .qi-toc a{ padding: 10px 0; border-left: none; border-bottom: 1px solid var(--line); }
}

/* ===== Main content column ===== */
.qi-main{
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 80px;
}
@media (min-width: 901px){
  .qi-main{ margin-left: calc(50% - 380px); }
}

/* ===== Hero ===== */
.qi-hero{ padding: 56px 0 40px; border-bottom: 1px solid var(--line); }
.qi-eyebrow{
  font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.08em;
  color: var(--teal); margin: 0 0 18px;
}
.qi-hero h1{ font-size: clamp(2rem, 5vw, 2.9rem); line-height: 1.12; margin: 0 0 22px; }
.qi-hero-sub{ font-size: 1.08rem; color: var(--ink-dim); max-width: 62ch; margin: 0 0 32px; }
.qi-hero-stat{
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--teal);
  border-radius: 16px;
  padding: 22px 26px;
  display: flex; flex-direction: column; gap: 6px;
  margin-bottom: 18px;
  box-shadow: 0 18px 46px rgba(0,0,0,0.18);
}
.qi-hero-stat-num{ font-family: var(--font-serif); font-size: 2.1rem; font-weight: 700; color: var(--teal); }
.qi-hero-stat-label{ font-size: 0.92rem; color: var(--ink-dim); }
.qi-hero-meta{ font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-faint); }

/* ===== Sections ===== */
.qi-section{ padding: 48px 0; border-bottom: 1px solid var(--line); }
.qi-section-num{
  font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.08em;
  color: var(--gold); margin: 0 0 10px;
}
.qi-section h2{ font-size: clamp(1.5rem, 3.4vw, 1.9rem); margin: 0 0 18px; }
.qi-section p{ font-size: 1.02rem; color: var(--ink-dim); margin: 0 0 18px; max-width: 66ch; }
.qi-section p strong{ color: var(--ink); }

.qi-callout{
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--gold);
  border-radius: 16px;
  padding: 20px 24px;
  margin: 8px 0 26px;
  display: flex; flex-direction: column; gap: 8px;
  box-shadow: 0 14px 38px rgba(0,0,0,0.15);
}
.qi-callout-num{ font-family: var(--font-serif); font-weight: 700; font-size: 1.5rem; color: var(--gold); }
.qi-callout p{ margin: 0; font-size: 0.96rem; }

.qi-honest{
  font-style: italic;
  border-left: 2px solid var(--line-strong);
  padding-left: 16px;
  color: var(--ink-faint) !important;
  font-size: 0.94rem !important;
}
.qi-honest strong{ font-style: normal; color: var(--ink-dim) !important; }

/* ===== Timeline ===== */
.qi-timeline{
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  margin: 24px 0;
}
@media (max-width: 720px){ .qi-timeline{ grid-template-columns: 1fr; } }
.qi-timeline-col{
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 18px 20px;
  box-shadow: 0 12px 34px rgba(0,0,0,0.14);
}
.qi-timeline-tag{
  display: block;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.05em;
  color: var(--indigo); margin-bottom: 12px;
}
.qi-timeline-col ul{ margin: 0; padding-left: 18px; }
.qi-timeline-col li{ font-size: 0.88rem; color: var(--ink-dim); margin-bottom: 10px; line-height: 1.5; }

/* ===== Stat grid ===== */
.qi-stat-grid{
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 24px;
}
@media (max-width: 780px){ .qi-stat-grid{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px){ .qi-stat-grid{ grid-template-columns: 1fr; } }
.qi-stat-card{
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  padding: 20px;
  display: flex; flex-direction: column; gap: 8px;
  box-shadow: 0 12px 34px rgba(0,0,0,0.14);
}
.qi-stat-num{ font-family: var(--font-serif); font-weight: 700; font-size: 1.5rem; color: var(--indigo); }
.qi-stat-label{ font-size: 0.84rem; color: var(--ink-dim); }

/* ===== References ===== */
.qi-refs{ padding-left: 22px; margin: 20px 0 0; }
.qi-refs li{ font-size: 0.9rem; color: var(--ink-dim); margin-bottom: 12px; line-height: 1.6; }
.qi-refs em{ color: var(--ink); font-style: italic; }

/* ===== Closer ===== */
.qi-closer{
  max-width: 720px; margin: 0 auto; padding: 48px 24px 80px;
  text-align: center;
}
@media (min-width: 901px){ .qi-closer{ margin-left: calc(50% - 380px); } }
.qi-closer p{
  font-size: 0.98rem; color: var(--ink-dim); max-width: 60ch; margin: 0 auto 20px;
}
.qi-closer-link{
  font-family: var(--font-mono); font-size: 0.86rem; text-decoration: none;
  color: var(--indigo); border-bottom: 1px solid var(--indigo); padding-bottom: 2px;
}