From fc6c59bc107f1295520860cd7d2a9515e8f1df85 Mon Sep 17 00:00:00 2001
From: Peter Meier <peter.meier.1986@gmail.com>
Date: Thu, 7 May 2026 15:45:22 +0200
Subject: [PATCH] fix(deadline-banner): count calendar days, not 24h windows

daysLeft used Math.ceil(ms/24h) which counted partial 24h windows:
30h before a midnight event tomorrow showed "Noch 2 Tage" instead
of "Morgen". Compare midnight-to-midnight day-keys instead, same
approach as CalendarBlock relativeDays().

Also adds data-block="DeadlineBanner" identifier.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 .../blocks/DeadlineBannerBlock.svelte           | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/lib/components/blocks/DeadlineBannerBlock.svelte b/src/lib/components/blocks/DeadlineBannerBlock.svelte
index bf2b5b8..a0478cc 100644
--- a/src/lib/components/blocks/DeadlineBannerBlock.svelte
+++ b/src/lib/components/blocks/DeadlineBannerBlock.svelte
@@ -61,11 +61,20 @@
         });
     });
 
+    /** Kalendertage zwischen heute und Ziel — über Mitternacht-zu-
+     *  Mitternacht-Diff, nicht roh per ms. Sonst zählt z. B. 30 h vor
+     *  Termin als „2 Tage" obwohl der Termin morgen ist. */
     const daysLeft = $derived.by(() => {
         if (!dateObj) return null;
-        const ms = dateObj.getTime() - Date.now();
-        if (ms < 0) return null;
-        return Math.ceil(ms / (1000 * 60 * 60 * 24));
+        const today = new Date();
+        today.setHours(0, 0, 0, 0);
+        const target = new Date(dateObj);
+        target.setHours(0, 0, 0, 0);
+        const diffDays = Math.round(
+            (target.getTime() - today.getTime()) / (1000 * 60 * 60 * 24),
+        );
+        if (diffDays < 0) return null;
+        return diffDays;
     });
 
     const countdownStr = $derived.by(() => {
@@ -103,7 +112,7 @@
 {#if hasContent && !dismissed}
     <div
         class="deadline-banner {layoutClasses}"
-        data-block-type="deadline_banner"
+        data-block="DeadlineBanner" data-block-type="deadline_banner"
         data-block-slug={block._slug}
     >
         <div