diff --git a/css/event_overview.css b/css/event_overview.css
index 0c3e203..5f99e94 100644
--- a/css/event_overview.css
+++ b/css/event_overview.css
@@ -266,7 +266,6 @@
 }
 
 .btn-primary {
-    background: var(--olive);
     color: #fffde8;
     border: none;
     border-radius: var(--radius-pill);
@@ -275,10 +274,44 @@
     line-height: 1.3;
     cursor: pointer;
     white-space: nowrap;
+    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
 }
 
-.btn-primary:hover {
-    filter: brightness(0.95);
+.btn-primary-register {
+    background: var(--olive);
+}
+
+.btn-primary-register:hover,
+.btn-primary-register:focus-visible {
+    background: #575704;
+    transform: translateY(-1px);
+    box-shadow: 0 4px 10px rgba(107, 107, 5, 0.28);
+}
+
+.btn-primary-register:active {
+    transform: translateY(0);
+    box-shadow: 0 2px 6px rgba(107, 107, 5, 0.25);
+}
+
+.btn-primary-danger {
+    background: var(--tomato);
+}
+
+.btn-primary-danger:hover,
+.btn-primary-danger:focus-visible {
+    background: var(--tomato-dark);
+    transform: translateY(-1px);
+    box-shadow: 0 4px 10px rgba(188, 74, 52, 0.28);
+}
+
+.btn-primary-danger:active {
+    transform: translateY(0);
+    box-shadow: 0 2px 6px rgba(188, 74, 52, 0.25);
+}
+
+.btn-primary:disabled {
+    opacity: 0.6;
+    cursor: not-allowed;
 }
 
 .btn-primary-own,
@@ -688,12 +721,42 @@
 }
 
 .detail-primary-btn {
-    border: 2px solid var(--tomato);
     border-radius: var(--radius-pill);
-    background: var(--tomato);
     color: var(--white);
     padding: 10px 22px;
     cursor: pointer;
+    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
+}
+
+.detail-primary-btn-register {
+    border: 2px solid var(--olive);
+    background: var(--olive);
+}
+
+.detail-primary-btn-register:not(:disabled):hover,
+.detail-primary-btn-register:not(:disabled):focus-visible {
+    background: #575704;
+    border-color: #575704;
+    transform: translateY(-1px);
+    box-shadow: 0 4px 10px rgba(107, 107, 5, 0.28);
+}
+
+.detail-primary-btn-danger {
+    border: 2px solid var(--tomato);
+    background: var(--tomato);
+}
+
+.detail-primary-btn-danger:not(:disabled):hover,
+.detail-primary-btn-danger:not(:disabled):focus-visible {
+    background: var(--tomato-dark);
+    border-color: var(--tomato-dark);
+    transform: translateY(-1px);
+    box-shadow: 0 4px 10px rgba(188, 74, 52, 0.28);
+}
+
+.detail-primary-btn:not(:disabled):active {
+    transform: translateY(0);
+    box-shadow: 0 2px 6px rgba(102, 52, 13, 0.22);
 }
 
 .detail-primary-btn:disabled {
diff --git a/css/my_profil.css b/css/my_profil.css
index 825504a..28c9e15 100644
--- a/css/my_profil.css
+++ b/css/my_profil.css
@@ -44,6 +44,38 @@
     gap: var(--space-4);
 }
 
+.profile-tabs {
+    display: inline-flex;
+    flex-wrap: wrap;
+    gap: var(--space-2);
+}
+
+.profile-tab {
+    border: 2px solid var(--olive);
+    border-radius: var(--radius-md);
+    background: var(--butter);
+    color: var(--black);
+    padding: 0.45rem 1rem;
+    min-height: 2.5rem;
+    font-family: "Jost", sans-serif;
+    font-size: 1rem;
+    font-weight: 500;
+    letter-spacing: var(--ls-ui);
+    cursor: pointer;
+    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
+}
+
+.profile-tab:hover,
+.profile-tab:focus-visible {
+    background: #faf8e8;
+}
+
+.profile-tab.is-active {
+    border-color: transparent;
+    background: var(--olive);
+    color: var(--white);
+}
+
 /* Konsistentes Karten-Layout fuer alle Profilsektionen. */
 .profile-panel {
     background: rgba(255, 255, 255, 0.88);
@@ -92,6 +124,16 @@
     gap: var(--space-3);
 }
 
+.profile-event-card-clickable {
+    cursor: pointer;
+    transition: box-shadow 0.2s ease, transform 0.2s ease;
+}
+
+.profile-event-card-clickable:hover {
+    box-shadow: 0 6px 16px rgba(102, 52, 13, 0.14);
+    transform: translateY(-1px);
+}
+
 .profile-event-title {
     margin: 0;
     color: var(--black);
@@ -106,6 +148,31 @@
     color: var(--olive);
 }
 
+.profile-event-address-block {
+    margin-top: 0.55rem;
+    padding: 0.6rem 0.75rem;
+    border-radius: var(--radius-sm);
+    border-left: 4px solid var(--tomato);
+    background: rgba(232, 237, 209, 0.65);
+}
+
+.profile-event-address-label {
+    margin: 0;
+    color: var(--olive);
+    font-size: 0.72rem;
+    font-weight: 700;
+    letter-spacing: var(--ls-label);
+    text-transform: uppercase;
+}
+
+.profile-event-address {
+    margin: 0.2rem 0 0;
+    font-size: 0.95rem;
+    color: var(--black);
+    font-weight: 600;
+    line-height: 1.35;
+}
+
 .profile-event-link {
     flex-shrink: 0;
     color: var(--blue);
@@ -135,11 +202,44 @@
     font-size: 0.95rem;
     font-weight: 500;
     cursor: pointer;
+    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
+}
+
+.profile-cancel-btn {
+    border: none;
+    border-radius: var(--radius-md);
+    background: var(--tomato);
+    color: var(--butter-light);
+    padding: 0.45rem 0.95rem;
+    font-family: "Jost", sans-serif;
+    font-size: 0.95rem;
+    font-weight: 500;
+    cursor: pointer;
+    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
+}
+
+.profile-cancel-btn:hover,
+.profile-cancel-btn:focus-visible {
+    background: var(--tomato-dark);
+    transform: translateY(-1px);
+    box-shadow: 0 4px 10px rgba(188, 74, 52, 0.28);
+}
+
+.profile-cancel-btn:active {
+    transform: translateY(0);
+    box-shadow: 0 2px 6px rgba(188, 74, 52, 0.25);
 }
 
 .profile-unregister-btn:hover,
 .profile-unregister-btn:focus-visible {
     background: var(--tomato-dark);
+    transform: translateY(-1px);
+    box-shadow: 0 4px 10px rgba(188, 74, 52, 0.28);
+}
+
+.profile-unregister-btn:active {
+    transform: translateY(0);
+    box-shadow: 0 2px 6px rgba(188, 74, 52, 0.25);
 }
 
 .profile-empty {
@@ -147,6 +247,35 @@
     color: var(--black);
 }
 
+.profile-empty-state {
+    text-align: center;
+    padding: 2.4rem 1.3rem;
+    border: 2px solid var(--olive-light);
+    border-radius: var(--radius-lg);
+    background: rgba(255, 255, 255, 0.92);
+    box-shadow: 0 3px 12px rgba(102, 52, 13, 0.08);
+}
+
+.profile-empty-kicker {
+    margin: 0 0 0.5rem;
+    color: var(--olive);
+    font-size: 0.8rem;
+    font-weight: 600;
+    letter-spacing: var(--ls-label);
+    text-transform: uppercase;
+}
+
+.profile-empty-state h3 {
+    margin: 0;
+    font-size: 1.5rem;
+    color: var(--brown);
+}
+
+.profile-empty-state p {
+    margin: 0.65rem auto 1rem;
+    max-width: 36rem;
+}
+
 .form-grid {
     display: grid;
     grid-template-columns: 1fr 1fr;
diff --git a/data/events.json b/data/events.json
index c5d1502..7f84219 100644
--- a/data/events.json
+++ b/data/events.json
@@ -3,8 +3,9 @@
     "id": 1,
     "title": "Italienische Tavolata",
     "location": "Luzern",
-    "date": "19. MÄR. 2026",
-    "time": "18:30 UHR",
+    "address": "Pilatusstrasse 18, 6003 Luzern",
+    "date": "11. APR. 2026",
+    "time": "3:30 UHR",
     "category": "DINNER",
     "diet": "VEGGIE",
     "spots": 6,
@@ -43,6 +44,7 @@
     "id": 2,
     "title": "Noche Peruana",
     "location": "Chur",
+    "address": "Obere Gasse 41, 7000 Chur",
     "date": "11. APR. 2026",
     "time": "19:00 UHR",
     "category": "DINNER",
@@ -84,6 +86,7 @@
     "id": 3,
     "title": "Japanese Delight",
     "location": "ZÜRICH",
+    "address": "Limmatquai 92, 8001 Zürich",
     "date": "02. MAI. 2026",
     "time": "12:30 UHR",
     "category": "LUNCH",
diff --git a/js/event_create.js b/js/event_create.js
index e72d82d..d3cef97 100644
--- a/js/event_create.js
+++ b/js/event_create.js
@@ -429,7 +429,8 @@ function buildStoredEvent() {
       ? []
       : getCheckboxValues("allergies").split(", ").filter(Boolean),
     allergiesNote: form.elements.allergiesOther.value.trim(),
-    participants: [usernameElement.textContent.trim() || "Host"],
+    // Host wird separat gefuehrt und nicht als angemeldeter Gast gezaehlt.
+    participants: [],
     gallery: [],
     createdAt: new Date().toISOString(),
     source: "local"
diff --git a/js/event_detail.js b/js/event_detail.js
index 53bb7e2..2ca06ac 100644
--- a/js/event_detail.js
+++ b/js/event_detail.js
@@ -52,6 +52,80 @@ document.addEventListener('DOMContentLoaded', async () => {
         localStorage.setItem(REGISTRATION_STORAGE_KEY, JSON.stringify(registrationMap));
     }
 
+    function parseEventDateTime(event) {
+        if (!event?.date) {
+            return null;
+        }
+
+        const dateValue = String(event.date).trim();
+        const isoDateMatch = dateValue.match(/^(\d{4})-(\d{2})-(\d{2})$/);
+        let year;
+        let month;
+        let day;
+
+        if (isoDateMatch) {
+            year = Number(isoDateMatch[1]);
+            month = Number(isoDateMatch[2]);
+            day = Number(isoDateMatch[3]);
+        } else {
+            const monthMap = {
+                JAN: 1,
+                FEB: 2,
+                'MÄR': 3,
+                MRZ: 3,
+                APR: 4,
+                MAI: 5,
+                JUN: 6,
+                JUL: 7,
+                AUG: 8,
+                SEP: 9,
+                OKT: 10,
+                NOV: 11,
+                DEZ: 12
+            };
+            const localizedMatch = dateValue.match(/^(\d{1,2})\.\s*([A-ZÄÖÜ]{3})\.\s*(\d{4})$/);
+
+            if (!localizedMatch) {
+                return null;
+            }
+
+            day = Number(localizedMatch[1]);
+            month = monthMap[localizedMatch[2]];
+            year = Number(localizedMatch[3]);
+
+            if (!month) {
+                return null;
+            }
+        }
+
+        const timeMatch = String(event.time || '').match(/(\d{1,2}):(\d{2})/);
+        const hours = timeMatch ? Number(timeMatch[1]) : 0;
+        const minutes = timeMatch ? Number(timeMatch[2]) : 0;
+
+        return new Date(year, month - 1, day, hours, minutes, 0, 0);
+    }
+
+    function isRegistrationClosedForEvent(event) {
+        const eventDateTime = parseEventDateTime(event);
+        if (!eventDateTime || Number.isNaN(eventDateTime.getTime())) {
+            return false;
+        }
+
+        const msUntilStart = eventDateTime.getTime() - Date.now();
+        const twelveHoursInMs = 12 * 60 * 60 * 1000;
+
+        return msUntilStart <= twelveHoursInMs;
+    }
+
+    function countRegistrationsForEvent(registrationMap, eventId) {
+        return Object.values(registrationMap).reduce((count, ids) => {
+            const hasEvent = Array.isArray(ids)
+                && ids.map(id => Number(id)).includes(Number(eventId));
+
+            return hasEvent ? count + 1 : count;
+        }, 0);
+    }
+
     // Ermittelt, ob das Event vom aktuell eingeloggten Benutzer erstellt wurde.
     function isEventOwnedByCurrentUser(event, user) {
         if (!event || !user) {
@@ -71,6 +145,29 @@ document.addEventListener('DOMContentLoaded', async () => {
         return Boolean(userFirstName && hostName && userFirstName === hostName);
     }
 
+    // Prueft, ob der aktuelle Benutzer bereits in der Teilnehmerliste des Events steht.
+    function isUserListedInEventParticipants(event, user) {
+        if (!event || !user || !Array.isArray(event.participants)) {
+            return false;
+        }
+
+        const participantSet = new Set(
+            event.participants
+                .map(name => String(name || '').trim().toLowerCase())
+                .filter(Boolean)
+        );
+
+        const userFirstName = String(user.vorname || '').trim().toLowerCase();
+        const userFullName = `${String(user.vorname || '').trim()} ${String(user.nachname || '').trim()}`
+            .trim()
+            .toLowerCase();
+
+        return Boolean(
+            (userFirstName && participantSet.has(userFirstName))
+            || (userFullName && participantSet.has(userFullName))
+        );
+    }
+
     // Fetch data source and resolve the matching event record.
     try {
         const response = await fetch('data/events.json');
@@ -157,19 +254,47 @@ document.addEventListener('DOMContentLoaded', async () => {
             ? event.gallery
             : [event.image, event.image, event.image];
         const visibleParticipants = participants.slice(0, 6);
-        const remainingParticipants = Math.max(0, participants.length - visibleParticipants.length);
+        const registrationMap = getRegistrationMap();
+        const extraRegistrations = countRegistrationsForEvent(registrationMap, event.id);
+        const remainingParticipants = Math.max(0, participants.length + extraRegistrations - visibleParticipants.length);
         const totalGuests = Number.isFinite(event.spots) ? event.spots : 0;
-        const confirmedGuests = participants.length;
+        const confirmedGuests = participants.length + extraRegistrations;
         const freePlaces = Math.max(0, totalGuests - confirmedGuests);
         const isFull = freePlaces === 0;
+        const isRegistrationClosed = isRegistrationClosedForEvent(event);
         const isOwnEvent = isEventOwnedByCurrentUser(event, currentUser);
-        const registrationMap = getRegistrationMap();
         const userRegistrations = currentUser?.email && Array.isArray(registrationMap[currentUser.email])
             ? registrationMap[currentUser.email].map(id => Number(id))
             : [];
         const isRegistered = userRegistrations.includes(Number(event.id));
-        const actionButtonLabel = isOwnEvent ? 'Dein Event' : !currentUser ? 'Einloggen' : isRegistered ? 'Abmelden' : 'Anmelden';
-        const actionButtonDisabled = isOwnEvent || (!isRegistered && isFull);
+        const isListedParticipant = isUserListedInEventParticipants(event, currentUser);
+        const hasAddressAccess = isRegistered || isListedParticipant;
+        const actionButtonLabel = isOwnEvent
+            ? 'Dein Event!'
+            : !currentUser
+                ? 'Einloggen'
+                : isRegistered
+                    ? 'Abmelden'
+                    : isRegistrationClosed
+                        ? 'Anmeldung geschlossen'
+                        : 'Anmelden';
+        const actionButtonDisabled = isOwnEvent || (!isRegistered && (isFull || isRegistrationClosed));
+        const actionButtonVariantClass = isOwnEvent
+            ? ' detail-primary-btn-own'
+            : isRegistered
+                ? ' detail-primary-btn-danger'
+                : isRegistrationClosed
+                    ? ' detail-primary-btn-danger'
+                    : ' detail-primary-btn-register';
+        const shouldRevealAddress = Boolean(event.address) && isRegistrationClosed && hasAddressAccess;
+        const addressPanelMarkup = shouldRevealAddress
+            ? `
+                <article class="detail-panel detail-panel-compact">
+                    <h2 class="detail-section-title">Adresse</h2>
+                    <p>${event.address}</p>
+                </article>
+            `
+            : '';
         const detailChips = [
             `<span class="event-tag">${eventCategory}</span>`,
             `<span class="event-tag">${dietLabel}</span>`,
@@ -227,6 +352,8 @@ document.addEventListener('DOMContentLoaded', async () => {
                                 ${remainingParticipants > 0 ? `<span class="participant-more">+${remainingParticipants}</span>` : ''}
                             </div>
                         </article>
+
+                        ${addressPanelMarkup}
                     </div>
 
                     <div class="detail-gallery detail-gallery-large">
@@ -254,7 +381,7 @@ document.addEventListener('DOMContentLoaded', async () => {
                         <span class="detail-spots-pill${isFull ? ' detail-spots-pill-full' : ''}">
                             ${isFull ? 'AUSGEBUCHT' : `${freePlaces} Plaetze frei`}
                         </span>
-                        <button class="detail-primary-btn${isOwnEvent ? ' detail-primary-btn-own' : ''}" type="button" data-register-button ${actionButtonDisabled ? 'disabled' : ''}>
+                        <button class="detail-primary-btn${actionButtonVariantClass}" type="button" data-register-button ${actionButtonDisabled ? 'disabled' : ''}>
                             ${actionButtonLabel}
                         </button>
                     </div>
@@ -280,6 +407,13 @@ document.addEventListener('DOMContentLoaded', async () => {
         const galleryButtons = detailContainer.querySelectorAll('.detail-gallery-item');
         const registerButton = detailContainer.querySelector('[data-register-button]');
 
+        // Harte Absicherung: Eigene Events sind auf der Detailseite immer deaktiviert.
+        if (registerButton && isOwnEvent) {
+            registerButton.disabled = true;
+            registerButton.textContent = 'Dein Event!';
+            registerButton.setAttribute('aria-disabled', 'true');
+        }
+
         // Anmeldung toggeln und im lokalen Registrierungs-Store persistieren.
         if (registerButton) {
             registerButton.addEventListener('click', () => {
@@ -300,7 +434,7 @@ document.addEventListener('DOMContentLoaded', async () => {
 
                 if (registrationSet.has(Number(event.id))) {
                     registrationSet.delete(Number(event.id));
-                } else if (!isFull) {
+                } else if (!isFull && !isRegistrationClosed) {
                     registrationSet.add(Number(event.id));
                 }
 
diff --git a/js/event_overview.js b/js/event_overview.js
index 15bf312..723a753 100644
--- a/js/event_overview.js
+++ b/js/event_overview.js
@@ -1,6 +1,7 @@
 document.addEventListener('DOMContentLoaded', () => {
     const EVENTS_STORAGE_KEY = 'socialCookingEvents';
     const CURRENT_USER_KEY = 'socialCookingCurrentUser';
+    const REGISTRATION_STORAGE_KEY = 'socialCookingRegistrations';
     // -------------------------------------------------------------
     // DOM references used throughout the page lifecycle.
     // -------------------------------------------------------------
@@ -55,6 +56,20 @@ document.addEventListener('DOMContentLoaded', () => {
         }
     }
 
+    function getRegistrationMap() {
+        try {
+            const stored = localStorage.getItem(REGISTRATION_STORAGE_KEY);
+            return stored ? JSON.parse(stored) : {};
+        } catch (error) {
+            console.error('Anmeldedaten konnten nicht gelesen werden.', error);
+            return {};
+        }
+    }
+
+    function setRegistrationMap(registrationMap) {
+        localStorage.setItem(REGISTRATION_STORAGE_KEY, JSON.stringify(registrationMap));
+    }
+
     // -------------------------------------------------------------
     // Initial data bootstrap:
     // 1) fetch JSON,
@@ -183,6 +198,83 @@ document.addEventListener('DOMContentLoaded', () => {
             : `${timeString} Uhr`;
     }
 
+    // Baut aus Eventdatum/-zeit ein Date-Objekt fuer Fristlogik und Vergleiche.
+    function parseEventDateTime(event) {
+        if (!event?.date) {
+            return null;
+        }
+
+        const dateValue = String(event.date).trim();
+        const isoDateMatch = dateValue.match(/^(\d{4})-(\d{2})-(\d{2})$/);
+        let year;
+        let month;
+        let day;
+
+        if (isoDateMatch) {
+            year = Number(isoDateMatch[1]);
+            month = Number(isoDateMatch[2]);
+            day = Number(isoDateMatch[3]);
+        } else {
+            const monthMap = {
+                JAN: 1,
+                FEB: 2,
+                'MÄR': 3,
+                MRZ: 3,
+                APR: 4,
+                MAI: 5,
+                JUN: 6,
+                JUL: 7,
+                AUG: 8,
+                SEP: 9,
+                OKT: 10,
+                NOV: 11,
+                DEZ: 12
+            };
+            const localizedMatch = dateValue.match(/^(\d{1,2})\.\s*([A-ZÄÖÜ]{3})\.\s*(\d{4})$/);
+
+            if (!localizedMatch) {
+                return null;
+            }
+
+            day = Number(localizedMatch[1]);
+            month = monthMap[localizedMatch[2]];
+            year = Number(localizedMatch[3]);
+
+            if (!month) {
+                return null;
+            }
+        }
+
+        const timeMatch = String(event.time || '').match(/(\d{1,2}):(\d{2})/);
+        const hours = timeMatch ? Number(timeMatch[1]) : 0;
+        const minutes = timeMatch ? Number(timeMatch[2]) : 0;
+
+        return new Date(year, month - 1, day, hours, minutes, 0, 0);
+    }
+
+    // Zaehlt eindeutige Registrierungen eines Events ueber alle Benutzer.
+    function countRegistrationsForEvent(registrationMap, eventId) {
+        return Object.values(registrationMap).reduce((count, ids) => {
+            const hasEvent = Array.isArray(ids)
+                && ids.map(id => Number(id)).includes(Number(eventId));
+
+            return hasEvent ? count + 1 : count;
+        }, 0);
+    }
+
+    // Schliesst neue Anmeldungen ab 12h vor Start (inkl. bereits gestarteter Events).
+    function isRegistrationClosedForEvent(event) {
+        const eventDateTime = parseEventDateTime(event);
+        if (!eventDateTime || Number.isNaN(eventDateTime.getTime())) {
+            return false;
+        }
+
+        const msUntilStart = eventDateTime.getTime() - Date.now();
+        const twelveHoursInMs = 12 * 60 * 60 * 1000;
+
+        return msUntilStart <= twelveHoursInMs;
+    }
+
     // Safely verify whether a value exists in the given select element.
     function hasOption(selectElement, value) {
         return Array.from(selectElement.options).some(option => option.value === value);
@@ -202,6 +294,11 @@ document.addEventListener('DOMContentLoaded', () => {
         });
 
         const filtered = allEvents.filter(event => {
+            // Lokal erstellte Events werden nicht in der allgemeinen Event-Uebersicht angezeigt.
+            if (event.source === 'local') {
+                return false;
+            }
+
             const categoryMatch = activeCategory === 'ALLE' || event.category === activeCategory;
             const locationMatch = selectedLocation === 'ALLE_ORTE' || event.location === selectedLocation;
             const eventDateIso = parseEventDateToIso(event.date);
@@ -222,6 +319,10 @@ document.addEventListener('DOMContentLoaded', () => {
     // - or event cards with status and metadata.
     function renderEvents(events) {
         eventGrid.innerHTML = '';
+        const registrationMap = getRegistrationMap();
+        const userRegistrationSet = currentUser?.email && Array.isArray(registrationMap[currentUser.email])
+            ? new Set(registrationMap[currentUser.email].map(id => Number(id)))
+            : new Set();
 
         if (events.length === 0) {
             eventGrid.innerHTML = `
@@ -242,20 +343,28 @@ document.addEventListener('DOMContentLoaded', () => {
             const card = document.createElement('article');
             card.className = 'event-card';
             card.style.cursor = 'pointer';
-            card.onclick = () => {
+            card.addEventListener('click', clickedEvent => {
+                if (clickedEvent.target instanceof HTMLElement && clickedEvent.target.closest('button')) {
+                    return;
+                }
+
                 window.location.href = `event_detail.html?id=${event.id}`;
-            };
+            });
 
             const displayDate = formatEventDate(event.date);
             const displayTime = formatEventTime(event.time);
 
             // Capacity logic:
             // spots = total capacity, participants.length = booked seats.
-            const bookedSeats = event.participants ? event.participants.length : 0;
+            const baseParticipants = Array.isArray(event.participants) ? event.participants.length : 0;
+            const extraRegistrations = countRegistrationsForEvent(registrationMap, event.id);
+            const bookedSeats = baseParticipants + extraRegistrations;
             const totalCapacity = event.spots;
             const freePlaces = Math.max(0, totalCapacity - bookedSeats);
             const isFull = freePlaces === 0;
             const isOwnEvent = isEventOwnedByCurrentUser(event, currentUser);
+            const isRegistered = userRegistrationSet.has(Number(event.id));
+            const isRegistrationClosed = isRegistrationClosedForEvent(event);
 
             // Build optional specification chips only when data exists.
             const specsChips = event.specifications && event.specifications.length > 0 
@@ -263,10 +372,16 @@ document.addEventListener('DOMContentLoaded', () => {
                 : '';
 
             const actionMarkup = isOwnEvent
-                ? '<button class="btn-primary btn-primary-own" type="button" disabled>Dein Event</button>'
-                : isFull
-                    ? ''
-                    : '<button class="btn-primary" type="button">Anmelden</button>';
+                ? '<button class="btn-primary btn-primary-own" type="button" data-registration-action="own" disabled>Dein Event!</button>'
+                : isRegistered
+                    ? '<button class="btn-primary btn-primary-danger" type="button" data-registration-action="unregister">Abmelden</button>'
+                    : isRegistrationClosed
+                        ? '<button class="btn-primary btn-primary-danger" type="button" data-registration-action="closed" disabled>Anmeldung geschlossen</button>'
+                    : isFull
+                        ? ''
+                        : !currentUser
+                            ? '<button class="btn-primary btn-primary-register" type="button" data-registration-action="login">Anmelden</button>'
+                            : '<button class="btn-primary btn-primary-register" type="button" data-registration-action="register">Anmelden</button>';
 
             card.innerHTML = `
                 <div class="event-main">
@@ -290,6 +405,50 @@ document.addEventListener('DOMContentLoaded', () => {
                 </div>
             `;
 
+            const actionButton = card.querySelector('[data-registration-action]');
+            if (actionButton) {
+                actionButton.addEventListener('click', clickEvent => {
+                    clickEvent.stopPropagation();
+
+                    const action = actionButton.getAttribute('data-registration-action');
+                    if (action === 'own') {
+                        return;
+                    }
+
+                    if (action === 'closed') {
+                        return;
+                    }
+
+                    if (action === 'login') {
+                        window.location.href = 'login.html';
+                        return;
+                    }
+
+                    if (!currentUser?.email) {
+                        window.location.href = 'login.html';
+                        return;
+                    }
+
+                    const nextRegistrationMap = getRegistrationMap();
+                    const currentIds = Array.isArray(nextRegistrationMap[currentUser.email])
+                        ? nextRegistrationMap[currentUser.email].map(id => Number(id))
+                        : [];
+                    const idSet = new Set(currentIds);
+
+                    if (action === 'unregister') {
+                        idSet.delete(Number(event.id));
+                    }
+
+                    if (action === 'register' && !isFull && !isRegistrationClosed) {
+                        idSet.add(Number(event.id));
+                    }
+
+                    nextRegistrationMap[currentUser.email] = Array.from(idSet);
+                    setRegistrationMap(nextRegistrationMap);
+                    applyFilters();
+                });
+            }
+
             eventGrid.appendChild(card);
         });
     }
diff --git a/js/my_profil.js b/js/my_profil.js
index 9d7ee5f..9d47a5b 100644
--- a/js/my_profil.js
+++ b/js/my_profil.js
@@ -10,6 +10,8 @@ document.addEventListener('DOMContentLoaded', () => {
     const profileHeadline = document.getElementById('profile-headline');
     const profileSubline = document.getElementById('profile-subline');
     const logoutButton = document.getElementById('logout-button');
+    const profileTabButtons = Array.from(document.querySelectorAll('[data-profile-tab]'));
+    const profileTabPanels = Array.from(document.querySelectorAll('[data-profile-panel]'));
 
     const myEventsCount = document.getElementById('my-events-count');
     const myRegistrationsCount = document.getElementById('my-registrations-count');
@@ -36,6 +38,7 @@ document.addEventListener('DOMContentLoaded', () => {
 
         renderLoggedInState(currentUser);
         bindFormHandlers();
+        activateProfileTab('hosting');
 
         allEvents = await loadAllEvents();
         renderMyEvents(allEvents, currentUser);
@@ -80,6 +83,11 @@ document.addEventListener('DOMContentLoaded', () => {
         localStorage.setItem(REGISTRATION_STORAGE_KEY, JSON.stringify(registrationMap));
     }
 
+    // Schreibt die lokal erstellten Events in den Storage.
+    function setStoredEvents(events) {
+        localStorage.setItem(EVENTS_STORAGE_KEY, JSON.stringify(events));
+    }
+
     // Fuehrt JSON-Daten und lokal erstellte Events in einer Liste zusammen.
     async function loadAllEvents() {
         try {
@@ -119,6 +127,18 @@ document.addEventListener('DOMContentLoaded', () => {
     function bindFormHandlers() {
         profileForm.addEventListener('submit', handleProfileSubmit);
         myRegistrationsList.addEventListener('click', handleRegistrationListClick);
+        myEventsList.addEventListener('click', handleHostedListClick);
+
+        profileTabButtons.forEach(button => {
+            button.addEventListener('click', () => {
+                const tabName = button.getAttribute('data-profile-tab');
+                if (!tabName) {
+                    return;
+                }
+
+                activateProfileTab(tabName);
+            });
+        });
 
         [vornameInput, nachnameInput, emailInput, passwortInput].forEach(input => {
             input.addEventListener('input', () => {
@@ -133,6 +153,53 @@ document.addEventListener('DOMContentLoaded', () => {
         });
     }
 
+    // Reagiert auf Aktionen in der Liste "Meine Events" per Event Delegation.
+    function handleHostedListClick(event) {
+        const target = event.target;
+        if (!(target instanceof HTMLElement)) {
+            return;
+        }
+
+        const cancelButton = target.closest('[data-cancel-event-id]');
+        if (cancelButton && currentUser?.email) {
+            const eventId = Number(cancelButton.getAttribute('data-cancel-event-id'));
+            if (Number.isFinite(eventId)) {
+                cancelHostedEvent(eventId, currentUser.email);
+            }
+            return;
+        }
+
+        if (target.closest('a, button')) {
+            return;
+        }
+
+        const card = target.closest('[data-event-id]');
+        if (!card) {
+            return;
+        }
+
+        const eventId = Number(card.getAttribute('data-event-id'));
+        if (!Number.isFinite(eventId)) {
+            return;
+        }
+
+        window.location.href = `event_detail.html?id=${eventId}`;
+    }
+
+    // Schaltet den sichtbaren Profilbereich per Tabname um.
+    function activateProfileTab(tabName) {
+        profileTabButtons.forEach(button => {
+            const isActive = button.getAttribute('data-profile-tab') === tabName;
+            button.classList.toggle('is-active', isActive);
+            button.setAttribute('aria-selected', isActive ? 'true' : 'false');
+        });
+
+        profileTabPanels.forEach(panel => {
+            const isActive = panel.getAttribute('data-profile-panel') === tabName;
+            panel.classList.toggle('hidden', !isActive);
+        });
+    }
+
     // Reagiert auf Aktionen in der Liste "Meine Anmeldungen" per Event Delegation.
     function handleRegistrationListClick(event) {
         const target = event.target;
@@ -141,18 +208,68 @@ document.addEventListener('DOMContentLoaded', () => {
         }
 
         const unregisterButton = target.closest('[data-unregister-id]');
-        if (!unregisterButton || !currentUser?.email) {
+        if (unregisterButton) {
+            if (!currentUser?.email) {
+                return;
+            }
+
+            const eventId = Number(unregisterButton.getAttribute('data-unregister-id'));
+            if (!Number.isFinite(eventId)) {
+                return;
+            }
+
+            unregisterFromEvent(eventId, currentUser.email);
             return;
         }
 
-        const eventId = Number(unregisterButton.getAttribute('data-unregister-id'));
+        if (target.closest('a, button')) {
+            return;
+        }
+
+        const card = target.closest('[data-event-id]');
+        if (!card) {
+            return;
+        }
+
+        const eventId = Number(card.getAttribute('data-event-id'));
         if (!Number.isFinite(eventId)) {
             return;
         }
 
-        unregisterFromEvent(eventId, currentUser.email);
+        window.location.href = `event_detail.html?id=${eventId}`;
     }
 
+
+    // Sagt ein gehostetes Event ab (aus eigener Profilansicht entfernen).
+    function cancelHostedEvent(eventId, userEmail) {
+        // Lokal erstellte, eigene Events werden direkt aus dem Storage geloescht.
+        const storedEvents = getStoredEvents();
+        const nextStoredEvents = storedEvents.filter(event => {
+            const isTargetEvent = Number(event.id) === eventId;
+            const isOwnedByUser = normalizeText(event.hostEmail || '') === normalizeText(userEmail)
+                || normalizeText(event.host?.name || '') === normalizeText(currentUser?.vorname || '');
+
+            return !(isTargetEvent && isOwnedByUser);
+        });
+        setStoredEvents(nextStoredEvents);
+
+        // Event-ID fuer alle Benutzer aus den Anmeldungen entfernen.
+        const registrationMap = getRegistrationMap();
+        Object.keys(registrationMap).forEach(email => {
+            const ids = Array.isArray(registrationMap[email])
+                ? registrationMap[email].map(id => Number(id)).filter(Number.isFinite)
+                : [];
+
+            registrationMap[email] = ids.filter(id => id !== eventId);
+        });
+        setRegistrationMap(registrationMap);
+
+        allEvents = allEvents.filter(event => Number(event.id) !== eventId);
+
+        renderMyEvents(allEvents, currentUser);
+        renderMyRegistrations(allEvents, currentUser);
+        profileFeedback.textContent = 'Event wurde abgesagt und aus deinem Hosting entfernt.';
+    }
     // Entfernt eine Event-ID aus der Benutzerliste und aktualisiert die UI sofort.
     function unregisterFromEvent(eventId, userEmail) {
         const registrationMap = getRegistrationMap();
@@ -260,15 +377,20 @@ document.addEventListener('DOMContentLoaded', () => {
         localStorage.setItem(REGISTRATION_STORAGE_KEY, JSON.stringify(map));
     }
 
-    // Ermittelt gehostete Events anhand Host-E-Mail oder Host-Vorname.
+    // Ermittelt gehostete Events aus lokal erstellten Daten des aktuellen Benutzers.
     function getMyHostedEvents(events, user) {
-        const userFirstName = normalizeText(user.vorname);
+        const userFirstName = normalizeText(user.vorname || '');
+        const userEmail = normalizeText(user.email || '');
 
         return events.filter(event => {
+            if (event.source !== 'local') {
+                return false;
+            }
+
             const hostEmail = normalizeText(event.hostEmail || '');
             const hostName = normalizeText(event.host?.name || '');
 
-            if (hostEmail && hostEmail === normalizeText(user.email)) {
+            if (hostEmail && hostEmail === userEmail) {
                 return true;
             }
 
@@ -289,45 +411,73 @@ document.addEventListener('DOMContentLoaded', () => {
     function renderMyEvents(events, user) {
         const hostedEvents = getMyHostedEvents(events, user);
         myEventsCount.textContent = String(hostedEvents.length);
-        renderEventCards(myEventsList, hostedEvents, 'Du hast noch kein eigenes Event erstellt.', false);
+        renderEventCards(myEventsList, hostedEvents, {
+            title: 'Noch kein eigenes Event',
+            text: 'Starte dein erstes Dinner und lade die Community an deinen Tisch ein.',
+            buttonLabel: 'Event erstellen',
+            href: 'event_create.html'
+        }, 'hosting');
     }
 
     // Rendert angemeldete Events inkl. Zaehler.
     function renderMyRegistrations(events, user) {
         const registeredEvents = getMyRegisteredEvents(events, user);
         myRegistrationsCount.textContent = String(registeredEvents.length);
-        renderEventCards(myRegistrationsList, registeredEvents, 'Du bist aktuell bei keinem Event angemeldet.', true);
+        renderEventCards(myRegistrationsList, registeredEvents, {
+            title: 'Noch keine Anmeldungen',
+            text: 'Entdecke spannende Dinner in deiner Naehe und melde dich direkt an.',
+            buttonLabel: 'Events entdecken',
+            href: 'event_overview.html'
+        }, 'registrations');
     }
 
     // Baut die Eventkarten fuer beide Listen in einheitlichem Markup.
-    function renderEventCards(container, events, emptyText, withUnregisterButton) {
+    function renderEventCards(container, events, emptyStateConfig, mode) {
         container.innerHTML = '';
 
         if (events.length === 0) {
-            const emptyElement = document.createElement('p');
-            emptyElement.className = 'profile-empty';
-            emptyElement.textContent = emptyText;
+            const emptyElement = document.createElement('div');
+            emptyElement.className = 'profile-empty-state';
+            emptyElement.innerHTML = `
+                <p class="profile-empty-kicker">Keine Treffer</p>
+                <h3>${emptyStateConfig.title}</h3>
+                <p>${emptyStateConfig.text}</p>
+                <a class="button" href="${emptyStateConfig.href}">${emptyStateConfig.buttonLabel}</a>
+            `;
             container.appendChild(emptyElement);
             return;
         }
 
         events.forEach(event => {
             const card = document.createElement('article');
-            card.className = 'profile-event-card';
+            card.className = 'profile-event-card profile-event-card-clickable';
+            card.setAttribute('data-event-id', String(event.id));
+            const addressMarkup = mode === 'registrations' && event.address
+                ? `
+                    <div class="profile-event-address-block" aria-label="Event Adresse">
+                        <p class="profile-event-address-label">Adresse</p>
+                        <p class="profile-event-address">${event.address}</p>
+                    </div>
+                `
+                : '';
 
-            const actionMarkup = withUnregisterButton
+            const actionMarkup = mode === 'registrations'
                 ? `
                     <div class="profile-event-actions">
-                        <a class="profile-event-link" href="event_detail.html?id=${event.id}">Zum Event</a>
                         <button class="profile-unregister-btn" type="button" data-unregister-id="${event.id}">Abmelden</button>
                     </div>
                 `
-                : `<a class="profile-event-link" href="event_detail.html?id=${event.id}">Zum Event</a>`;
+                : `
+                    <div class="profile-event-actions">
+                        <button class="profile-cancel-btn" type="button" data-cancel-event-id="${event.id}">Event absagen</button>
+                    </div>
+                `;
 
             card.innerHTML = `
                 <div>
                     <h3 class="profile-event-title">${event.title}</h3>
                     <p class="profile-event-meta">${event.location} | ${formatEventDate(event.date)} | ${formatEventTime(event.time)}</p>
+                    ${addressMarkup}
                 </div>
                 ${actionMarkup}
             `;
diff --git a/my_profil.html b/my_profil.html
index f5610a9..da5bb7f 100644
--- a/my_profil.html
+++ b/my_profil.html
@@ -44,7 +44,13 @@
     </section>
 
     <section id="logged-in-content" class="profile-grid">
-        <article class="profile-panel">
+        <nav class="profile-tabs" aria-label="Profilbereiche">
+            <button type="button" class="profile-tab is-active" data-profile-tab="hosting">Hosting</button>
+            <button type="button" class="profile-tab" data-profile-tab="teilnehmen">Teilnehmen</button>
+            <button type="button" class="profile-tab" data-profile-tab="einstellungen">Einstellungen</button>
+        </nav>
+
+        <article class="profile-panel" data-profile-panel="hosting">
             <div class="panel-head">
                 <h2 class="panel-title">Meine Events</h2>
                 <span id="my-events-count" class="panel-count">0</span>
@@ -52,7 +58,7 @@
             <div id="my-events-list" class="profile-card-list"></div>
         </article>
 
-        <article class="profile-panel">
+        <article class="profile-panel hidden" data-profile-panel="teilnehmen">
             <div class="panel-head">
                 <h2 class="panel-title">Meine Anmeldungen</h2>
                 <span id="my-registrations-count" class="panel-count">0</span>
@@ -60,7 +66,7 @@
             <div id="my-registrations-list" class="profile-card-list"></div>
         </article>
 
-        <article class="profile-panel profile-panel-form">
+        <article class="profile-panel profile-panel-form hidden" data-profile-panel="einstellungen">
             <h2 class="panel-title">Profil verwalten</h2>
             <form id="profile-form" novalidate>
                 <div class="form-grid">