/* ════════════════════════════════════════════════════════════
   Fold section + signature pad
   ════════════════════════════════════════════════════════════ */

.fold-section {
  margin: 12px 0;
  position: relative;
}
.fold-head {
  display: flex; align-items: center;
  gap: 4px;
  width: 100%;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  padding: 4px 0;
  color: var(--text-1);
}
.fold-kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-right: 6px;
}
.fold-title {
  font-family: var(--font-serif, var(--font-sans));
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.fold-body {
  overflow: hidden;
  transition: max-height var(--dur-slow) var(--ease-standard),
              opacity var(--dur-fast) var(--ease-standard);
}

/* Signature pad */
.sig-pad-wrap {
  position: relative;
  background: color-mix(in oklab, var(--text-3, #999) 8%, transparent);
  border: 0.5px solid var(--border, #38383a);
  border-radius: 10px;
  padding: 4px;
  overflow: hidden;
}
.sig-pad {
  display: block;
  width: 100%;
  touch-action: none;
  cursor: crosshair;
  background: transparent;
}
.sig-foot {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 10px 6px;
  border-top: 0.5px solid var(--border);
  font-family: var(--font-serif, var(--font-sans));
  color: var(--text-3);
}
.sig-x { font-size: 18px; }
.sig-line { flex: 1; font-size: 11px; font-style: italic; }
.sig-clear {
  background: transparent;
  border: 0.5px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  color: var(--text-2);
  font-size: 10px;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
  cursor: pointer;
}
.sig-clear:hover { color: var(--text-1); border-color: var(--text-2); }

/* ════════════════════════════════════════════════════════════
   Sign modal — courtroom contract
   ════════════════════════════════════════════════════════════ */
.sign-modal-bg {
  position: fixed; inset: 0;
  background: color-mix(in oklab, #000 60%, transparent);
  backdrop-filter: blur(10px) saturate(140%);
  -webkit-backdrop-filter: blur(10px) saturate(140%);
  display: flex; align-items: center; justify-content: center;
  z-index: 9000;
  padding: 16px;
  animation: smFade var(--dur-fast) var(--ease-standard);
}
@keyframes smFade { from { opacity: 0; } }
.sign-modal {
  position: relative;
  width: min(440px, 100%);
  max-height: 92vh;
  overflow: auto;
  background: var(--bg-1, #14110d);
  background-image:
    repeating-linear-gradient(transparent 0 27px, color-mix(in oklab, var(--text-3) 10%, transparent) 27px 28px);
  background-position: 0 56px;
  border: 0.5px solid var(--border-strong, #666);
  border-radius: 6px;
  box-shadow: var(--shadow-overlay, 0 60px 120px rgba(0,0,0,0.6));
  font-family: var(--font-serif, 'Georgia', serif);
  color: var(--text-1);
  animation: smRise var(--dur-slow) var(--ease-spring-soft);
}
@keyframes smRise {
  from { opacity: 0; transform: translateY(20px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.sm-mast {
  display: flex; flex-direction: column; align-items: center;
  padding: 18px 16px 14px;
  border-bottom: 2px double var(--border-strong, #888);
  position: relative;
  background: transparent;
}
.sm-fileno {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  color: var(--text-3);
  text-transform: uppercase;
}
.sm-title {
  font-family: var(--font-serif, 'Georgia', serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-top: 4px;
  text-align: center;
}
.sm-close {
  position: absolute; top: 8px; right: 10px;
  background: transparent; border: none;
  font-size: 22px; color: var(--text-3); cursor: pointer;
  width: 28px; height: 28px;
}
.sm-close:hover { color: var(--text-1); }
.sm-body {
  padding: 18px 22px 8px;
  line-height: 1.7;
}
.sm-clause {
  font-size: 13px;
  text-indent: 0;
  margin: 0 0 12px;
  color: var(--text-2);
}
.sm-cnum {
  font-weight: 700;
  font-style: italic;
  color: var(--text-1);
  margin-right: 4px;
}
.sm-sign {
  padding: 4px 22px 14px;
}
.sm-sign-lab {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  color: var(--text-3);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.sm-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  margin-top: 8px;
  letter-spacing: 0.06em;
}
.sm-date span { color: var(--text-1); }
.sm-foot {
  display: flex; gap: 8px; padding: 0 22px 18px;
}
.sm-foot .act-btn { flex: 1; }
.act-btn.disabled, .act-btn:disabled { opacity: 0.42; cursor: not-allowed; }
.act-btn.primary.stamping { background: var(--down-strong, #d94f4f); color: #fff; }
.sm-stamp {
  position: absolute;
  top: 38%; left: 50%;
  transform: translate(-50%, -50%) rotate(-14deg) scale(2.6);
  font-family: var(--font-serif, 'Georgia', serif);
  font-size: 56px;
  font-weight: 900;
  letter-spacing: 0.16em;
  color: var(--down-strong, #d94f4f);
  border: 5px double var(--down-strong, #d94f4f);
  padding: 4px 22px;
  opacity: 0;
  pointer-events: none;
  transition: transform var(--dur-slow) var(--ease-spring-firm), opacity var(--dur-fast) var(--ease-standard);
}
.sm-stamp.on {
  opacity: 0.88;
  transform: translate(-50%, -50%) rotate(-14deg) scale(1);
}

/* ════════════════════════════════════════════════════════════
   P11-2 · High contrast theme variant
   ════════════════════════════════════════════════════════════ */
[data-palette="highcontrast"] {
  --bg-0: #000;
  --bg-1: #000;
  --bg-2: #0a0a0a;
  --bg-3: #141414;
  --text-1: #fff;
  --text-2: #e8e8e8;
  --text-3: #b8b8b8;
  --border: #4a4a4a;
  --border-strong: #888;
  --up-strong: #00ff7a;
  --down-strong: #ff3838;
  --accent-paper: #ffdf3a;
  --src-tech: #4faaff;
  --src-ai:   #ffce00;
  --src-pro:  #00ff7a;
}
[data-palette="highcontrast"][data-theme="light"] {
  --bg-0: #fff;
  --bg-1: #fff;
  --bg-2: #fafafa;
  --bg-3: #f0f0f0;
  --text-1: #000;
  --text-2: #1a1a1a;
  --text-3: #404040;
  --border: #8a8a8a;
  --border-strong: #404040;
  --up-strong: #0a8a3a;
  --down-strong: #c01717;
  --accent-paper: #8a4400;
}