#magnets-expert-root { font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif; }
#magnets-expert-root * { box-sizing: border-box; }

#magnets-expert-fab {
  position: fixed; right: 20px; bottom: 168px; z-index: 9998;
  width: 56px; height: 56px; border: none; border-radius: 50%;
  background: linear-gradient(145deg, #0a1628, #1a4a7a); color: #fff;
  font-size: 13px; font-weight: 700; cursor: pointer;
  box-shadow: 0 8px 24px rgba(10, 22, 40, 0.35);
}
#magnets-expert-fab span { display: block; line-height: 1.15; }

#magnets-expert-panel {
  position: fixed; right: 16px; bottom: 16px; z-index: 9999;
  width: min(380px, calc(100vw - 24px)); height: min(540px, calc(100vh - 32px));
  background: #fff; border-radius: 16px; box-shadow: 0 16px 48px rgba(0,0,0,0.22);
  display: none; flex-direction: column; overflow: hidden; border: 1px solid #d8e0ea;
}
#magnets-expert-panel.open { display: flex; }

#magnets-expert-panel header {
  background: linear-gradient(145deg, #0a1628, #132238); color: #fff;
  padding: 12px 14px; display: flex; align-items: flex-start; gap: 10px;
}
#magnets-expert-panel header .titles { flex: 1; min-width: 0; }
#magnets-expert-panel header h2 { margin: 0; font-size: 15px; font-weight: 700; }
#magnets-expert-panel header p { margin: 2px 0 0; font-size: 11px; opacity: 0.85; }
#magnets-expert-close {
  background: transparent; border: none; color: #fff; font-size: 22px;
  line-height: 1; cursor: pointer; padding: 0 4px;
}

#magnets-expert-human {
  display: block; margin: 10px 12px 0; text-align: center;
  background: #25d366; color: #fff !important; text-decoration: none;
  font-weight: 700; font-size: 13px; padding: 10px 12px; border-radius: 10px;
}

#magnets-expert-gate {
  flex: 1; padding: 16px 14px; background: #f4f7fb;
  display: flex; flex-direction: column; gap: 10px; overflow-y: auto;
}
#magnets-expert-gate .mec-gate-intro {
  margin: 0; font-size: 14px; line-height: 1.45; color: #0a1628; font-weight: 600;
}
#magnets-expert-gate input {
  border: 1px solid #94a3b8; border-radius: 10px; padding: 12px 12px; font-size: 15px;
  background: #fff;
}
#magnets-expert-gate .mec-gate-hint { margin: 0; font-size: 12px; color: #64748b; }
#magnets-expert-gate .mec-gate-err { margin: 0; font-size: 13px; color: #b91c1c; min-height: 1.2em; font-weight: 600; }
#mec-gate-btn {
  border: none; border-radius: 10px; background: #0b3a5b; color: #fff;
  font-weight: 700; padding: 14px; cursor: pointer; font-size: 15px; margin-top: 4px;
}

#magnets-expert-msgs {
  flex: 1; overflow-y: auto; padding: 12px; background: #f4f7fb;
  display: none; flex-direction: column; gap: 8px;
}
.mec-msg {
  max-width: 88%; padding: 8px 11px; border-radius: 12px;
  font-size: 13px; line-height: 1.45; white-space: pre-wrap;
}
.mec-msg.bot { align-self: flex-start; background: #fff; border: 1px solid #e2e8f0; color: #0a1628; }
.mec-msg.user { align-self: flex-end; background: #0b3a5b; color: #fff; }
.mec-msg.err { align-self: flex-start; background: #fff5f5; border: 1px solid #fecaca; color: #991b1b; }

#magnets-expert-form {
  display: none; gap: 8px; padding: 10px; border-top: 1px solid #e2e8f0; background: #fff;
}
#magnets-expert-input {
  flex: 1; border: 1px solid #cbd5e1; border-radius: 10px; padding: 10px 12px; font-size: 14px;
}
#magnets-expert-send {
  border: none; border-radius: 10px; background: #0b3a5b; color: #fff;
  font-weight: 700; padding: 0 14px; cursor: pointer;
}
#magnets-expert-send:disabled { opacity: 0.5; cursor: wait; }

body:has(#magnets-expert-root) .wa-fab { bottom: 88px !important; }
body:has(#magnets-expert-root) .call-fab { bottom: 148px !important; right: 20px; }