diff --git a/styles.css b/styles.css
index 926cc13..00e988d 100644
--- a/styles.css
+++ b/styles.css
@@ -135,6 +135,7 @@ textarea.cell-input{resize:vertical;min-height:38px;line-height:1.4}
   position:fixed;inset:0;background:rgba(15,18,24,.55);backdrop-filter:blur(2px);
   z-index:100;display:grid;place-items:center;padding:20px;overflow-y:auto;
 }
+.modal-overlay[hidden]{display:none}
 .modal{background:#fff;border-radius:14px;width:100%;max-width:680px;box-shadow:var(--shadow-lg);max-height:92vh;display:flex;flex-direction:column}
 .modal-head{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border)}
 .modal-head h2{font-size:18px;font-weight:700}