style: stadium scoreboard kickoff display in card header

Kickoff time styled as LED scoreboard: monospace font, dark background,
gold text with glow effect. Placed in card header next to group badge.
Cards are more compact without the separate kickoff row.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/components/MatchCard.tsx

@@ -84,7 +84,7 @@ export default function MatchCard({ match, onTip }: Props) {
   return (
     <div className={`card ${styles.card} ${styles[`card_${state}`]} ${isLive ? styles.live : ''} ${glowClass}`}>
 
-      {/* Top row: Group + Countdown */}
+      {/* Top row: Group + Kickoff (stadium display) + Countdown */}
       <div className={styles.topRow}>
         {(isLive || isFinished) && (
           <span className={`${styles.status} ${isLive ? styles.statusLive : ''}`}>
@@ -97,6 +97,9 @@ export default function MatchCard({ match, onTip }: Props) {
             {match.group.replace('GROUP_', 'Gruppe ')}
           </span>
         )}
+        {!isFinished && !isLive && (
+          <span className={styles.kickoffDisplay}>{formatKickoff(match.utcDate)}</span>
+        )}
         <span className={styles.topRowSpacer} />
         {(state === 'open' || state === 'tipped') && match.tippable && (
           <span className={`${styles.badge} ${remainingMins < 60 ? styles.badgeUrgent : ''} ${remainingMins < 5 ? styles.countdownUrgent : ''}`}>
@@ -113,13 +116,6 @@ export default function MatchCard({ match, onTip }: Props) {
         )}
       </div>
 
-      {/* Kickoff time — centered above flags */}
-      {!isFinished && !isLive && (
-        <div className={styles.kickoffRow}>
-          <span className={styles.kickoffTime}>{formatKickoff(match.utcDate)}</span>
-        </div>
-      )}
-
       {/* Teams + Score */}
       <div className={styles.matchRow}>
         {/* Home */}