/* ============================================================
   modern.css — the design-territory surfaces.
   Clearly OUTSIDE the simulated 2005 site: modern-framed overlay
   with asymmetric editorial grid, scroll-linked linear reveals,
   high-contrast monospace panels, hamburger drawer + shortcuts.
   ============================================================ */

body.overlayOpen { overflow: hidden; }

.modernOverlay {
  position: fixed; inset: 0; z-index: 1300;
  background:
    radial-gradient(1100px 500px at 85% -10%, #eef4ff 0%, transparent 60%),
    #f7f8fa;
  overflow-y: auto;
  animation: moFade .28s ease;
}
@keyframes moFade { from { opacity: 0; } to { opacity: 1; } }

.mo-grid {
  max-width: 1060px; margin: 0 auto; padding: 18px 20px 80px;
}

/* masthead with deliberately asymmetric column structure */
.mo-masthead {
  display: grid;
  grid-template-columns: 44px 1fr min-content;
  align-items: center; gap: 14px;
  border-bottom: 2px solid #14213d;
  padding-bottom: 12px;
}
.mo-brand {
  font-family: "Avenir Next", "Segoe UI", system-ui, sans-serif;
  font-weight: 800; font-size: 19px; letter-spacing: -0.5px; color: #14213d;
}
.mo-brand span { color: #2563eb; }
.mo-brand em { display: block; font-style: normal; font-weight: 400; font-size: 11px; color: #64748b; letter-spacing: .12em; text-transform: uppercase; }
.mo-close {
  width: 38px; height: 38px; font-size: 21px; border-radius: 50%;
  border: 1px solid #cbd5e1; background: #fff; cursor: pointer; color: #334155;
}
.mo-close:hover { border-color: #2563eb; color: #2563eb; }

/* hamburger */
.mo-burger {
  width: 42px; height: 40px; border-radius: 9px;
  border: 1px solid #cbd5e1; background: #fff; cursor: pointer;
  display: flex; flex-direction: column; justify-content: center; gap: 5px;
  padding: 0 10px;
}
.mo-burger span { height: 3px; background: #14213d; border-radius: 2px; transition: transform .2s ease; }
.mo-burger:hover span:nth-child(1) { transform: translateX(1px); }
.mo-burger:hover span:nth-child(3) { transform: translateX(-1px); }

.mo-drawer {
  position: sticky; top: 10px;
  margin: 10px 0 0;
  padding: 8px;
  background: #fff; border: 1px solid #e2e8f0; border-radius: 12px;
  box-shadow: 0 12px 30px rgba(15,23,42,.08);
  z-index: 20;
  width: min(320px, 90%);
}
.mo-drawer a {
  display: block; padding: 9px 12px; border-radius: 8px;
  color: #14213d; text-decoration: none; font-size: 14px; cursor: pointer;
}
.mo-drawer a:hover { background: #eef4ff; color: #2563eb; }

/* asymmetric editorial body: offset columns per section, alternating */
.mo-body { margin-top: 26px; }
.mo-section {
  display: grid;
  grid-template-columns: 90px minmax(0, 58fr) minmax(0, 42fr);
  gap: 22px;
  margin-bottom: 56px;
  align-items: start;
}
#sec-what { grid-template-areas: "num copy pull"; }
#sec-how  { grid-template-columns: minmax(0, 46fr) minmax(0, 54fr) 90px; }
#sec-keys { grid-template-columns: 60px minmax(0, 1fr); }
.mo-num {
  font: 700 54px/0.9 "Georgia", serif;
  color: transparent;
  -webkit-text-stroke: 1.4px #94a3b8;
  user-select: none;
}
.mo-copy h2 {
  font: 700 clamp(24px, 3.4vw, 36px)/1.12 "Avenir Next", "Segoe UI", system-ui, sans-serif;
  letter-spacing: -0.8px; color: #14213d;
  margin: 4px 0 16px;
}
.mo-copy p { font-size: 15px; line-height: 1.75; color: #334155; max-width: 62ch; }
.mo-pullquote {
  grid-area: pull;
  border-left: 3px solid #2563eb;
  padding: 12px 18px;
  font: italic 500 20px/1.45 Georgia, serif;
  color: #1e293b;
  background: linear-gradient(180deg,#eef4ff, rgba(238,244,255,.35));
  border-radius: 0 14px 14px 0;
  align-self: center;
}
.mo-fineprint { font-size: 12px !important; color: #64748b !important; }
.mo-list { padding-left: 20px; line-height: 1.9; color: #334155; font-size: 14.5px; }

/* monospace hi-contrast source panel inside the modern frame */
.monoPanel.highContrast.mo-src {
  font-size: 12.5px; line-height: 1.6;
  border-radius: 10px; box-shadow: inset 0 0 0 1px #1f2937;
}

.keyTable { border-collapse: collapse; font-size: 14px; color: #334155; }
.keyTable td { padding: 6px 14px 6px 0; border-bottom: 1px dashed #cbd5e1; }
kbd {
  font: 600 12px ui-monospace, Menlo, Consolas, monospace;
  background: #14213d; color: #e2ffea;
  padding: 2px 7px; border-radius: 5px; margin-right: 2px;
  box-shadow: 0 2px 0 #0b1120;
}

/* scroll-linked linear reveal motion */
.reveal { opacity: 0.001; transform: translateY(34px); transition: opacity .32s ease-out, transform .55s cubic-bezier(.2,.65,.25,1); will-change: opacity, transform; }
.reveal.revealedOn { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { transform: none; transition: none; opacity: 1; }
  @keyframes moFade { from, to {} }
}

@media (max-width: 720px) {
  .mo-grid { padding: 12px 12px 70px; }
  .mo-masthead { grid-template-columns: 48px 1fr 44px; }
  .mo-section, #sec-how, #sec-keys { grid-template-columns: 52px 1fr !important; gap: 14px; }
  .mo-num { font-size: 34px; }
  .mo-copy h2 { font-size: 22px; }
  .mo-drawer { top: 0; width: calc(100% - 20px); }
}