style: redesign Match-Cards — balanced layout, better tipped state

- Move kickoff time above teams row instead of between flags
- Center separator: slim ":" instead of 100px time block
- Use shortName for teams (prevents overflow on mobile)
- Tipped state: clean green bar with icon, label, score, edit hint
  instead of scattered checkmark + underline link

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

frontend/src/components/MatchCard.tsx

@@ -117,22 +117,28 @@ export default function MatchCard({ match, onTip }: Props) {
         )}
       </div>
 
+      {/* Kickoff time — above the teams row */}
+      {!isFinished && !isLive && (
+        <div className={styles.kickoffRow}>
+          <span className={styles.kickoffTime}>{formatKickoff(match.utcDate)}</span>
+        </div>
+      )}
+
       {/* Teams + Score */}
       <div className={styles.matchRow}>
         {/* Home */}
         <div className={styles.teamHome}>
-          <span className={styles.teamName}>{match.homeTeam.name}</span>
+          <span className={styles.teamName}>{match.homeTeam.shortName}</span>
           <FlagBox crest={match.homeTeam.crest} name={match.homeTeam.name} />
         </div>
 
-        {/* Score / Kickoff time */}
+        {/* Center: Score or VS separator */}
         <div className={styles.scoreBox}>
           {isFinished || isLive ? (
             <div className={styles.scoreStack}>
               <span className={styles.score}>
                 {match.score.home ?? '–'}&nbsp;:&nbsp;{match.score.away ?? '–'}
               </span>
-              {/* For live: show user's tip next to score for comparison */}
               {isLive && hasTip && (
                 <span className={styles.liveTipCompare}>
                   Tipp: {match.userTip!.home}:{match.userTip!.away}
@@ -140,16 +146,14 @@ export default function MatchCard({ match, onTip }: Props) {
               )}
             </div>
           ) : (
-            <div className={styles.kickoffCenter}>
-              <span className={styles.kickoffCenterTime}>{formatKickoff(match.utcDate)}</span>
-            </div>
+            <span className={styles.vsSeparator}>:</span>
           )}
         </div>
 
         {/* Away */}
         <div className={styles.teamAway}>
           <FlagBox crest={match.awayTeam.crest} name={match.awayTeam.name} />
-          <span className={styles.teamName}>{match.awayTeam.name}</span>
+          <span className={styles.teamName}>{match.awayTeam.shortName}</span>
         </div>
       </div>
 
@@ -210,22 +214,11 @@ export default function MatchCard({ match, onTip }: Props) {
             </div>
           ) : (
             /* ── Tipp vorhanden, noch nicht ausgewertet (tipped state) ── */
-            <div className={styles.tipDisplay}>
-              <div className={styles.tipLeft}>
-                {match.tippable && (
-                  <button className={styles.changeBtn} onClick={onTip}>Ändern</button>
-                )}
-              </div>
-              <div className={styles.tipCenter}>
-                {!match.tippable && <span className={styles.tipLabel}>DEIN TIPP</span>}
-                <span className={styles.tipDisplay_score}>
-                  <Check size={13} strokeWidth={3} style={{ color: 'var(--success)', flexShrink: 0 }} />
-                  <span className={styles.tipScore}>
-                    {match.userTip!.home} : {match.userTip!.away}
-                  </span>
-                </span>
-              </div>
-              <div className={styles.tipRight} />
+            <div className={styles.tippedRow} onClick={match.tippable ? onTip : undefined}>
+              <span className={styles.tippedIcon}>✓</span>
+              <span className={styles.tippedLabel}>Dein Tipp</span>
+              <span className={styles.tippedScore}>{match.userTip!.home} : {match.userTip!.away}</span>
+              {match.tippable && <span className={styles.tippedEdit}>Ändern</span>}
             </div>
           )
         ) : match.tippable ? (