* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4A90E2;
    --primary-dark: #357ABD;
    --secondary: #50C9A8;
    --accent: #6DD5C2;
    --bg: #E8F4F8;
    --surface: #FFFFFF;
    --surface-hover: #F0F9FF;
    --text: #2C5F7A;
    --text-secondary: #6B9AAA;
    --border: #C5E7F0;
    --success: #50C9A8;
    --danger: #FF6B6B;
    --shadow: rgba(74, 144, 226, 0.1);
    --gradient: linear-gradient(135deg, #4A90E2 0%, #50C9A8 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* Notifications */
.notifications-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.notification {
    background: var(--surface);
    padding: 15px 20px;
    border-radius: 12px;
    box-shadow: 0 8px 25px var(--shadow);
    border-left: 4px solid var(--primary);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 400px;
    cursor: pointer;
    animation: slideIn 0.3s ease;
    transition: transform 0.2s, box-shadow 0.2s;
}

.notification:hover {
    transform: translateX(-5px);
    box-shadow: 0 12px 35px var(--shadow);
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notification-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    flex-shrink: 0;
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 600;
    color: var(--text);
    margin-bottom: 3px;
}

.notification-message {
    font-size: 0.9em;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Auth Pages */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: var(--gradient);
}

.auth-box {
    background: var(--surface);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow);
    width: 100%;
    max-width: 450px;
    border: 1px solid var(--border);
}

.auth-box h1 {
    text-align: center;
    margin-bottom: 30px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2em;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9em;
    font-weight: 500;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 15px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-size: 1em;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--surface);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.btn {
    width: 100%;
    padding: 14px;
    background: var(--gradient);
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 10px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(74, 144, 226, 0.3);
}

.btn-secondary {
    background: var(--surface-hover);
    color: var(--primary);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    box-shadow: 0 10px 25px var(--shadow);
}

.toggle-auth {
    text-align: center;
    margin-top: 20px;
    color: var(--text-secondary);
}

.toggle-auth a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
}

/* Chat Layout */
.chat-container {
    display: none;
    height: 100vh;
    flex-direction: column;
}

.online-bar {
    background: var(--surface);
    padding: 15px 20px;
    border-bottom: 2px solid var(--border);
    display: flex;
    gap: 15px;
    overflow-x: auto;
    align-items: center;
    box-shadow: 0 2px 10px var(--shadow);
}

.online-bar::-webkit-scrollbar {
    height: 6px;
}

.online-bar::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}

.online-label {
    color: var(--text);
    font-weight: 600;
    margin-right: 10px;
    white-space: nowrap;
}

.online-user {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    min-width: 80px;
    padding: 8px;
    border-radius: 12px;
    transition: all 0.2s;
    position: relative;
}

.online-user:hover {
    background: var(--surface-hover);
    transform: translateY(-2px);
}

.online-user-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3em;
    font-weight: bold;
    position: relative;
    border: 3px solid var(--success);
    color: white;
}

.unread-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: #ef4444;
    color: white;
    font-size: 0.7em;
    font-weight: bold;
    min-width: 20px;
    height: 20px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
    border: 2px solid var(--surface);
    z-index: 10;
}

.online-user-info {
    text-align: center;
    margin-top: 5px;
}

.online-user-name {
    font-size: 0.8em;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 2px;
}

.online-user-details {
    font-size: 0.7em;
    color: var(--text-secondary);
}

.main-content {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.conversations-panel 
{
	left: -40px;
    width: 320px;
    background: var(--surface);
    border-right: 2px solid var(--border);
    display: flex;
    flex-direction: column;
}

.panel-header {
    padding: 20px;
    border-bottom: 2px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-header h2 {
    font-size: 1.3em;
    color: var(--text);
}

.profile-btn {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9em;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.profile-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 144, 226, 0.3);
}

.conversations-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.conversation-item {
    padding: 15px;
    border-radius: 12px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 12px;
    border: 2px solid transparent;
    position: relative;
}

.conversation-item:hover {
    background: var(--surface-hover);
    border-color: var(--border);
}

.conversation-item:hover .conversation-delete-btn {
    opacity: 1;
    visibility: visible;
}

.conversation-delete-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--danger);
    color: white;
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2em;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    opacity: 0;
    visibility: hidden;
    z-index: 10;
}

.conversation-delete-btn:hover {
    background: #dc2626;
    transform: translateY(-50%) scale(1.1);
}

.conversation-item.active {
    background: var(--gradient);
    color: white;
}

.conversation-item.active .conversation-name,
.conversation-item.active .conversation-preview,
.conversation-item.active .conversation-details {
    color: white;
}

.conversation-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
    font-size: 1.2em;
    color: white;
    position: relative;
}

.conversation-item.active .conversation-avatar {
    background: white;
    color: var(--primary);
}

.conversation-info {
    flex: 1;
    overflow: hidden;
}

.conversation-name {
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text);
}

.conversation-details {
    font-size: 0.75em;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.conversation-preview {
    font-size: 0.85em;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg);
}

.chat-header {
    padding: 20px;
    background: var(--surface);
    border-bottom: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px var(--shadow);
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.chat-header-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.3em;
    color: white;
}

.chat-header-info h3 {
    font-size: 1.2em;
    margin-bottom: 3px;
    color: var(--text);
}

.chat-header-details {
    font-size: 0.85em;
    color: var(--text-secondary);
    margin-bottom: 3px;
}

.detail-item {
    display: inline-block;
}

.detail-separator {
    margin: 0 5px;
}

.chat-header-status {
    font-size: 0.8em;
    color: var(--success);
    font-weight: 500;
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    display: flex;
    gap: 10px;
    max-width: 70%;
    animation: messageIn 0.3s ease;
}

@keyframes messageIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.sent {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9em;
    font-weight: bold;
    flex-shrink: 0;
    color: white;
}

.message-content {
    background: var(--surface);
    padding: 12px 16px;
    border-radius: 18px;
    border-top-left-radius: 4px;
    box-shadow: 0 2px 8px var(--shadow);
    border: 1px solid var(--border);
}

.message.sent .message-content {
    background: var(--gradient);
    color: white;
    border-radius: 18px;
    border-top-right-radius: 4px;
    border: none;
}

.message-text {
    word-wrap: break-word;
    line-height: 1.4;
}

.message-time {
    font-size: 0.75em;
    color: var(--text-secondary);
    margin-top: 5px;
}

.message.sent .message-time {
    color: rgba(255, 255, 255, 0.8);
}

.message-image {
    max-width: 300px;
    max-height: 300px;
    border-radius: 12px;
    cursor: pointer;
    transition: transform 0.2s;
    margin-top: 8px;
}

.message-image:hover {
    transform: scale(1.02);
}

.message-file {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg);
    border-radius: 10px;
    margin-top: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.message.sent .message-file {
    background: rgba(255, 255, 255, 0.2);
}

.message-file:hover {
    transform: translateX(5px);
}

.file-icon {
    font-size: 2em;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-hover);
    border-radius: 10px;
}

.message.sent .file-icon {
    background: rgba(255, 255, 255, 0.3);
}

.file-info {
    flex: 1;
    overflow: hidden;
}

.file-name {
    font-weight: 600;
    margin-bottom: 3px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.file-size {
    font-size: 0.8em;
    color: var(--text-secondary);
}

.message.sent .file-size {
    color: rgba(255, 255, 255, 0.7);
}

.link-preview {
    margin-top: 10px;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--bg);
}

.message.sent .link-preview {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.link-preview:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px var(--shadow);
}

.link-preview-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    background: var(--surface-hover);
}

.link-preview-content {
    padding: 12px;
}

.link-preview-title {
    font-weight: 600;
    margin-bottom: 5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.link-preview-description {
    font-size: 0.85em;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.message.sent .link-preview-description {
    color: rgba(255, 255, 255, 0.8);
}

.link-preview-url {
    font-size: 0.75em;
    color: var(--primary);
    margin-top: 5px;
}

.message.sent .link-preview-url {
    color: rgba(255, 255, 255, 0.9);
}

.uploading-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: var(--surface-hover);
    border-radius: 10px;
    margin-top: 10px;
}

.uploading-spinner {
    width: 20px;
    height: 20px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.chat-input {
    padding: 20px;
    background: var(--surface);
    border-top: 2px solid var(--border);
    display: flex;
    gap: 10px;
    box-shadow: 0 -2px 10px var(--shadow);
    align-items: center;
    position: relative;
}

.emoji-btn,
.file-btn {
    background: var(--surface-hover);
    border: 2px solid var(--border);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    font-size: 1.5em;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.emoji-btn:hover,
.file-btn:hover {
    background: var(--primary);
    transform: scale(1.1);
}

.emoji-picker {
    position: absolute;
    bottom: 80px;
    left: 20px;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: 15px;
    box-shadow: 0 10px 40px var(--shadow);
    width: 350px;
    max-height: 400px;
    overflow-y: auto;
    z-index: 1000;
}

.emoji-picker-content {
    padding: 15px;
}

.emoji-category {
    margin-bottom: 20px;
}

.emoji-category-title {
    font-size: 0.9em;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 8px;
}

.emoji-item {
    font-size: 1.5em;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    text-align: center;
    transition: all 0.2s;
}

.emoji-item:hover {
    background: var(--surface-hover);
    transform: scale(1.2);
}

.chat-input input {
    flex: 1;
    padding: 12px 20px;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 25px;
    color: var(--text);
    font-size: 1em;
    transition: all 0.3s;
}

.chat-input input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--surface);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.send-btn {
    padding: 12px 25px;
    background: var(--gradient);
    border: none;
    border-radius: 25px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.send-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(74, 144, 226, 0.3);
}

.send-icon {
    font-size: 1.2em;
}

/* Profile Page */
.profile-container {
    display: none;
    max-width: 800px;
    margin: 50px auto;
    padding: 20px;
}

.profile-box {
    background: var(--surface);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow);
    border: 2px solid var(--border);
}

.profile-box h1 {
    margin-bottom: 30px;
    text-align: center;
    color: var(--text);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.back-btn {
    background: var(--surface-hover);
    color: var(--primary);
    border: 2px solid var(--border);
    width: auto;
    padding: 10px 20px;
    margin-bottom: 20px;
}

.hidden {
    display: none !important;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state h3 {
    color: var(--text);
    margin-bottom: 10px;
}

.empty-state-icon {
    font-size: 4em;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state-hint {
    font-size: 0.9em;
    margin-top: 5px;
}

@media (max-width: 768px) {
    .conversations-panel {
        width: 280px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .message {
        max-width: 85%;
    }

    .notification {
        min-width: 250px;
    }
}

/* Media Modal */
.media-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.profile-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.media-modal-content {
    background: var(--surface);
    border-radius: 15px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    width: 90%;
    max-width: 1000px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    position: relative;
    border: 2px solid var(--border);
    overflow: hidden;
}

.media-modal-content.dragging {
    cursor: move;
    user-select: none;
}

.media-modal-header {
    background: var(--gradient);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
    user-select: none;
}

.media-modal-title {
    font-weight: 600;
    font-size: 1.1em;
}

.media-modal-controls {
    display: flex;
    gap: 10px;
}

.modal-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 35px;
    height: 35px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.2em;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.modal-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

.modal-close {
    font-size: 1.5em;
    font-weight: bold;
}

.media-modal-body {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    flex: 1;
    overflow: auto;
}

.media-modal-body img,
.media-modal-body video {
    max-width: 100%;
    max-height: calc(90vh - 100px);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.media-modal-body video {
    width: 100%;
}

.media-modal-content.fullscreen {
    width: 100vw;
    max-width: 100vw;
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
}

.media-modal-content.fullscreen .media-modal-body {
    padding: 0;
}

.media-modal-content.fullscreen .media-modal-body img,
.media-modal-content.fullscreen .media-modal-body video {
    max-height: calc(100vh - 65px);
    border-radius: 0;
}

/* Prevent right click context menu */
body {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

input, textarea, [contenteditable] {
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* Profile Modal */
.profile-modal-content {
    background: var(--surface);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    position: relative;
    border: 2px solid var(--border);
    overflow: hidden;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.profile-modal-content.dragging {
    cursor: move;
    user-select: none;
}

.profile-modal-header {
    background: var(--gradient);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: move;
    user-select: none;
}

.profile-modal-title {
    font-weight: 600;
    font-size: 1.1em;
}

.profile-modal-controls {
    display: flex;
    gap: 10px;
}

.profile-modal-body {
    padding: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg);
    overflow-y: auto;
}

.profile-modal-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3em;
    font-weight: bold;
    color: white;
    margin-bottom: 20px;
    border: 4px solid var(--border);
    cursor: pointer;
    transition: transform 0.2s;
}

.profile-modal-avatar:hover {
    transform: scale(1.05);
}

.profile-modal-info {
    width: 100%;
}

.profile-modal-info h2 {
    text-align: center;
    color: var(--text);
    margin-bottom: 25px;
    font-size: 1.8em;
}

.profile-modal-details {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.profile-detail-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    background: var(--surface);
    border-radius: 10px;
    border: 1px solid var(--border);
    transition: all 0.2s;
}

.profile-detail-item:hover {
    background: var(--surface-hover);
    transform: translateX(5px);
}

.profile-detail-icon {
    font-size: 1.3em;
    margin-right: 12px;
    width: 30px;
    text-align: center;
}

.profile-detail-label {
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 100px;
}

.profile-detail-value {
    color: var(--text);
    flex: 1;
    text-align: right;
}

.chat-header-name-link {
    color: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-block;
}

.chat-header-name-link:hover {
    color: var(--primary);
    text-decoration: underline;
}

.conversation-download-btn {
    position: absolute;
    right: 55px; /* Silme butonunun soluna */
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary); /* Mavi */
    color: white;
    border: none;
    width: 35px;
    height: 35px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2em;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    opacity: 0;
    visibility: hidden;
    z-index: 10;
}

.conversation-download-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-50%) scale(1.1);
}

.conversation-item:hover .conversation-download-btn {
    opacity: 1;
    visibility: visible;
}

.conversations-panel {
    width: 320px;
    background: var(--surface);
    border-right: 2px solid var(--border);
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease; /* Animasyon için */
    position: relative;
}

/* Kapalı durum */
.conversations-panel.collapsed {
    width: 0;
    min-width: 0;
    border-right: none;
    overflow: hidden;
}

/* Toggle butonu */
.panel-toggle-btn {
    position: fixed;
    left: 320px; /* Başlangıç pozisyonu */
    top: 80px;
    width: 45px;
    height: 45px;
    background: var(--gradient);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.3em;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px var(--shadow);
    z-index: 1001;
    transition: left 0.3s ease, transform 0.2s ease; /* left animasyonu */
}

.panel-toggle-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

/* Mobil cihazlarda */
@media (max-width: 768px) {
    .panel-toggle-btn {
        left: 10px;
        top: 80px;
    }
}

/* Message Delete Button */
.message-delete-container {
    position: relative;
}

.message-delete-btn {
    position: absolute;
    bottom: -35px;
    right: 0;
    background: var(--danger);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85em;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
    animation: slideUp 0.3s ease;
    z-index: 10;
    white-space: nowrap;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-delete-btn:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(239, 68, 68, 0.4);
}

.message-delete-btn:active {
    transform: translateY(0);
}

/* Long press indicator (opsiyonel görsel feedback) */
.message.pressing {
    opacity: 0.7;
    transform: scale(0.98);
}

/* Message delete animation */
@keyframes messageOut {
    from {
        opacity: 1;
        transform: translateX(0);
        max-height: 200px;
    }
    to {
        opacity: 0;
        transform: translateX(-50px);
        max-height: 0;
        padding: 0;
        margin: 0;
    }
}

/* Custom Modal System */
.custom-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 20000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.custom-modal-content {
    background: var(--surface);
    border-radius: 20px;
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.5);
    width: 90%;
    max-width: 450px;
    overflow: hidden;
    animation: modalSlideUp 0.3s ease;
    border: 2px solid var(--border);
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.custom-modal-header {
    padding: 25px;
    display: flex;
    align-items: center;
    gap: 15px;
    border-bottom: 2px solid var(--border);
}

.alert-header {
    background: linear-gradient(135deg, #4A90E2 0%, #357ABD 100%);
    color: white;
}

.confirm-header {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
}

.custom-modal-icon {
    font-size: 2em;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
}

.custom-modal-title {
    font-size: 1.3em;
    font-weight: 600;
    flex: 1;
}

.custom-modal-body {
    padding: 30px;
    color: var(--text);
    font-size: 1.05em;
    line-height: 1.6;
    max-height: 400px;
    overflow-y: auto;
    white-space: pre-line;
}

.custom-modal-footer {
    padding: 20px 25px;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    border-top: 2px solid var(--border);
    background: var(--bg);
}

.custom-modal-btn {
    padding: 12px 30px;
    border: none;
    border-radius: 10px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    min-width: 100px;
}

.custom-modal-btn.primary {
    background: var(--gradient);
    color: white;
}

.custom-modal-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(74, 144, 226, 0.3);
}

.custom-modal-btn.secondary {
    background: var(--surface-hover);
    color: var(--text);
    border: 2px solid var(--border);
}

.custom-modal-btn.secondary:hover {
    background: var(--border);
    transform: translateY(-2px);
}

.custom-modal-btn:active {
    transform: translateY(0);
}

/* Error variant */
.custom-modal-header.error-header {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
}

/* Success variant */
.custom-modal-header.success-header {
    background: linear-gradient(135deg, #50C9A8 0%, #2fa384 100%);
    color: white;
}
/* Online Bar Wrapper */
.online-bar-wrapper {
    position: relative;
    background: var(--surface);
    border-bottom: 2px solid var(--border);
    box-shadow: 0 2px 10px var(--shadow);
}

.online-bar {
    padding: 15px 60px 15px 20px; /* Sağdan buton için boşluk */
    display: flex;
    gap: 15px;
    overflow-x: auto;
    align-items: center;
    scroll-behavior: smooth; /* Yumuşak kaydırma */
    scrollbar-width: thin; /* Firefox için */
}

/* Scrollbar'ı gizle ama kaydırılabilir yap */
.online-bar::-webkit-scrollbar {
    height: 8px;
}

.online-bar::-webkit-scrollbar-track {
    background: var(--bg);
    border-radius: 4px;
}

.online-bar::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
    transition: background 0.2s;
}

.online-bar::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Scroll Butonları */
.online-scroll-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: var(--gradient);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.8em;
    font-weight: bold;
    cursor: pointer;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
    transition: all 0.3s;
    opacity: 0.9;
}

.online-scroll-btn:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.5);
}

.online-scroll-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.online-scroll-btn.left {
    left: 10px;
}

.online-scroll-btn.right {
    right: 10px;
}

/* Butonları gizle/göster */
.online-scroll-btn.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Mobil için kaydırma ipucu */
.online-bar::after {
    content: '⟨ Kaydırın ⟩';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gradient);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.75em;
    font-weight: 600;
    pointer-events: none;
    opacity: 0.8;
    animation: pulseSwipe 2s infinite;
}

@keyframes pulseSwipe {
    0%, 100% {
        opacity: 0.8;
        transform: translateY(-50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translateY(-50%) scale(1.05);
    }
}

/* Scroll başladığında ipucunu gizle */
.online-bar.scrolled::after {
    display: none;
}

/* Profile Picture Upload Section */
.profile-picture-section {
    display: flex;
    flex-direction: column;
    gap: 15px;
    align-items: center;
}

.profile-picture-preview {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--border);
    background: var(--bg);
    position: relative;
    transition: all 0.3s;
}

.profile-picture-preview:hover {
    transform: scale(1.05);
    border-color: var(--primary);
    box-shadow: 0 8px 25px var(--shadow);
}

.profile-picture-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4em;
    background: var(--gradient);
    color: white;
}

#profilePreviewImage {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-upload-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.profile-upload-btn {
    padding: 12px 20px;
    border: none;
    border-radius: 12px;
    font-size: 0.95em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.profile-upload-btn.gallery {
    background: var(--gradient);
    color: white;
}

.profile-upload-btn.gallery:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(74, 144, 226, 0.3);
}

.profile-upload-btn.camera {
    background: linear-gradient(135deg, #50C9A8 0%, #2fa384 100%);
    color: white;
}

.profile-upload-btn.camera:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(80, 201, 168, 0.3);
}

.profile-upload-btn.remove {
    background: var(--danger);
    color: white;
}

.profile-upload-btn.remove:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(239, 68, 68, 0.3);
}

.upload-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: var(--surface-hover);
    border-radius: 10px;
    color: var(--text);
    font-weight: 500;
}

/* Camera Modal */
.camera-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 20000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.camera-modal-content {
    background: var(--surface);
    border-radius: 20px;
    padding: 20px;
    width: 90%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.camera-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--border);
}

.camera-modal-title {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--text);
}

.camera-preview {
    width: 100%;
    aspect-ratio: 4/3;
    background: #000;
    border-radius: 15px;
    overflow: hidden;
    position: relative;
}

.camera-preview video,
.camera-preview canvas {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.camera-preview canvas {
    display: none;
}

.camera-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.camera-btn {
    padding: 15px 30px;
    border: none;
    border-radius: 12px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.camera-btn.capture {
    background: var(--gradient);
    color: white;
    min-width: 150px;
}

.camera-btn.capture:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(74, 144, 226, 0.3);
}

.camera-btn.retake {
    background: var(--danger);
    color: white;
}

.camera-btn.retake:hover {
    background: #dc2626;
}

.camera-btn.use {
    background: var(--success);
    color: white;
}

.camera-btn.use:hover {
    background: #2fa384;
}

.camera-btn.cancel {
    background: var(--surface-hover);
    color: var(--text);
    border: 2px solid var(--border);
}

.camera-btn.cancel:hover {
    background: var(--border);
}

@media (max-width: 768px) {
    .profile-upload-buttons {
        width: 100%;
    }
    
    .profile-upload-btn {
        flex: 1;
        min-width: 120px;
    }
}

/* Avatar'lar için ortak stil - mevcut avatar class'larının yanına ekle */
.online-user-avatar,
.conversation-avatar,
.message-avatar,
.chat-header-avatar,
.notification-avatar {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* Avatar içindeki text gizleme class'ı */
.avatar-with-image {
    color: transparent !important;
    font-size: 0 !important;
}

.notification-mark-read, .notification-close {
    position: absolute;
    top: 5px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 12px;
    font-weight: bold;
    transition: all 0.2s ease;
}

.notification-mark-read {
    right: 30px;
    background: var(--success);
    color: white;
}

.notification-close {
    right: 5px;
    background: var(--danger);
    color: white;
}

.notification-mark-read:hover, .notification-close:hover {
    transform: scale(1.1);
}

.notification-unread-count {
    position: absolute;
    top: 5px;
    left: 5px;
    background: var(--danger);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: bold;
}

@keyframes notificationPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}