/**
 * WinChat 11 - Styles Windows 11
 * Design professionnel avec effets Fluent Design
 */

/* ===== CSS Variables ===== */
:root {
    /* Windows 11 Colors */
    --win-blue: #0078D4;
    --win-blue-light: #60CDFF;
    --win-blue-dark: #005A9E;
    
    /* Light Theme */
    --bg-primary: #F3F3F3;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #E5E5E5;
    --bg-glass: rgba(255, 255, 255, 0.65);
    --bg-glass-dark: rgba(255, 255, 255, 0.45);
    
    --text-primary: #1F1F1F;
    --text-secondary: #606060;
    --text-tertiary: #9E9E9E;
    
    --border-color: rgba(0, 0, 0, 0.08);
    --border-light: rgba(0, 0, 0, 0.04);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
    
    /* Status Colors */
    --status-online: #107C10;
    --status-away: #FFB900;
    --status-busy: #E74856;
    --status-offline: #9E9E9E;
    
    /* Message Colors */
    --msg-sent: #0078D4;
    --msg-received: #E5E5E5;
    --msg-text-sent: #FFFFFF;
    --msg-text-received: #1F1F1F;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;
    --spacing-2xl: 32px;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Typography */
    --font-family: 'Segoe UI Variable', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 11px;
    --font-size-sm: 12px;
    --font-size-md: 14px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-2xl: 24px;
    
    /* Sidebar Width */
    --sidebar-width: 360px;
    --chat-info-width: 320px;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #202020;
    --bg-secondary: #2C2C2C;
    --bg-tertiary: #3C3C3C;
    --bg-glass: rgba(32, 32, 32, 0.75);
    --bg-glass-dark: rgba(32, 32, 32, 0.55);
    
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0A0;
    --text-tertiary: #6B6B6B;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.04);
    
    --msg-received: #3C3C3C;
    --msg-text-received: #FFFFFF;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.4);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== Glass Effect ===== */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-weight: 600;
    letter-spacing: -0.02em;
}

a {
    color: var(--win-blue);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--win-blue-light);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-md);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--win-blue);
    color: white;
}

.btn-primary:hover {
    background: var(--win-blue-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(0, 0, 0, 0.08);
}

.btn-danger {
    background: rgba(248, 57, 75, 0.1);
    color: var(--status-busy);
}

.btn-danger:hover {
    background: rgba(248, 57, 75, 0.2);
}

.btn-full {
    width: 100%;
}

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    background: rgba(0, 0, 0, 0.06);
}

.icon-btn:active {
    transform: scale(0.95);
}

/* ===== Form Elements ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-size-md);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--win-blue);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.15);
}

.input-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    transition: all var(--transition-fast);
}

.input-wrapper:focus-within {
    border-color: var(--win-blue);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.15);
}

.input-wrapper svg {
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.input-wrapper input {
    flex: 1;
    border: none;
    background: transparent;
    padding: var(--spacing-xs) 0;
}

.input-wrapper input:focus {
    outline: none;
    box-shadow: none;
}

.toggle-password {
    background: none;
    border: none;
    padding: var(--spacing-xs);
    cursor: pointer;
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.toggle-password:hover {
    color: var(--text-primary);
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.checkbox-wrapper input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.checkbox-wrapper input:checked + .checkmark {
    background: var(--win-blue);
    border-color: var(--win-blue);
}

.checkbox-wrapper input:checked + .checkmark::after {
    content: '';
    display: block;
    width: 5px;
    height: 9px;
    margin: 2px 4px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Toggle Switch */
.toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: var(--radius-full);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.toggle input:checked + .toggle-slider {
    background: var(--win-blue);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* ===== Auth Pages ===== */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.auth-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, #0078D4, #00BCF2);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, #00BCF2, #0078D4);
    bottom: -150px;
    right: -150px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #0078D4, #60CDFF);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(20px, 30px) scale(1.02); }
}

.auth-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 440px;
}

.auth-card {
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.win-logo {
    margin-bottom: var(--spacing-lg);
}

.auth-header h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xs);
}

.auth-header .subtitle {
    color: var(--text-secondary);
    font-size: var(--font-size-md);
}

.auth-form {
    margin-bottom: var(--spacing-xl);
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.forgot-link {
    color: var(--text-secondary);
}

.forgot-link:hover {
    color: var(--win-blue);
}

.auth-footer {
    text-align: center;
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.error-message {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: rgba(244, 67, 54, 0.1);
    border-radius: var(--radius-md);
    color: var(--status-busy);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
}

/* ===== Install Page ===== */
.install-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-tertiary) 100%);
}

.install-container {
    width: 100%;
    max-width: 480px;
}

.install-card {
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
}

.install-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.install-header h1 {
    margin-top: var(--spacing-md);
}

.install-info {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: rgba(0, 120, 212, 0.05);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.install-success {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.success-icon {
    margin-bottom: var(--spacing-lg);
    animation: scaleIn 0.5s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.install-success h2 {
    color: var(--status-online);
    margin-bottom: var(--spacing-sm);
}

/* ===== Dashboard Layout ===== */
.dashboard-page {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.main-container {
    display: flex;
    flex: 1;
    position: relative;
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    transition: width var(--transition-normal), transform var(--transition-normal);
}

.sidebar-header {
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.profile-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
    flex: 1;
}

.profile-info:hover {
    background: rgba(0, 0, 0, 0.04);
}

.avatar-container {
    position: relative;
    width: 44px;
    height: 44px;
}

.avatar {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-full);
    object-fit: cover;
    background: var(--bg-tertiary);
}

.status-indicator {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    border-radius: var(--radius-full);
    border: 2px solid var(--bg-secondary);
}

.status-online { background: var(--status-online); }
.status-away { background: var(--status-away); }
.status-busy { background: var(--status-busy); }
.status-offline { background: var(--status-offline); }

.profile-text {
    display: flex;
    flex-direction: column;
}

.profile-text .username {
    font-weight: 600;
    font-size: var(--font-size-md);
}

.profile-text .status-text {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.sidebar-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* ===== Search ===== */
.search-container {
    padding: var(--spacing-md);
}

.search-box {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.search-box:focus-within {
    background: var(--bg-secondary);
    box-shadow: 0 0 0 2px var(--win-blue);
}

.search-box svg {
    color: var(--text-tertiary);
}

.search-box input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
}

.search-box input:focus {
    outline: none;
}

.search-box input::placeholder {
    color: var(--text-tertiary);
}

/* ===== Chat List ===== */
.chat-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.chat-list::-webkit-scrollbar {
    width: 6px;
}

.chat-list::-webkit-scrollbar-track {
    background: transparent;
}

.chat-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

.chat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chat-item:hover {
    background: rgba(0, 0, 0, 0.04);
}

.chat-item.active {
    background: rgba(0, 120, 212, 0.1);
}

.chat-avatar {
    position: relative;
    width: 48px;
    height: 48px;
    flex-shrink: 0;
}

.avatar-group {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}

.chat-info {
    flex: 1;
    min-width: 0;
}

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.chat-name {
    font-weight: 600;
    font-size: var(--font-size-md);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-time {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.chat-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.last-message {
    flex: 1;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.unread-badge {
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--win-blue);
    color: white;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ===== Empty State ===== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--spacing-2xl);
    text-align: center;
    color: var(--text-secondary);
}

.empty-state svg {
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state p {
    margin-bottom: var(--spacing-lg);
}

/* ===== Chat Area ===== */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
    position: relative;
}

.chat-placeholder {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.welcome-animation {
    text-align: center;
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.win-logo-large svg {
    animation: pulse 3s ease-in-out infinite;
}

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

.welcome-animation h1 {
    margin: var(--spacing-lg) 0 var(--spacing-sm);
    font-size: var(--font-size-2xl);
}

.welcome-animation p {
    color: var(--text-secondary);
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* ===== Chat Header ===== */
.chat-header-area {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-glass);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
}

.chat-header-avatar {
    position: relative;
    width: 44px;
    height: 44px;
}

.chat-header-text {
    display: flex;
    flex-direction: column;
}

.chat-header-name {
    font-weight: 600;
}

.chat-header-status {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.chat-header-actions {
    display: flex;
    gap: var(--spacing-xs);
}

/* ===== Messages Area ===== */
.messages-area {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    background: var(--bg-primary);
}

.messages-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.messages-area::-webkit-scrollbar {
    width: 6px;
}

.messages-area::-webkit-scrollbar-track {
    background: transparent;
}

.messages-area::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-full);
}

/* Message Styles */
.message {
    display: flex;
    flex-direction: column;
    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;
    align-items: flex-end;
}

.message.received {
    align-self: flex-start;
    align-items: flex-start;
}

.message-bubble {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    position: relative;
    word-wrap: break-word;
}

.message.sent .message-bubble {
    background: var(--msg-sent);
    color: var(--msg-text-sent);
    border-bottom-right-radius: var(--radius-sm);
}

.message.received .message-bubble {
    background: var(--msg-received);
    color: var(--msg-text-received);
    border-bottom-left-radius: var(--radius-sm);
}

.message-time {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
    padding: 0 var(--spacing-sm);
}

.message-status {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    margin-left: var(--spacing-xs);
}

.message-status svg {
    width: 14px;
    height: 14px;
}

.message.sent .message-status svg {
    fill: var(--win-blue);
}

/* Media Messages */
.message-media {
    max-width: 300px;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.message-media img,
.message-media video {
    width: 100%;
    display: block;
}

.message-audio {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    min-width: 200px;
}

.audio-wave {
    display: flex;
    align-items: center;
    gap: 2px;
    height: 24px;
}

.audio-wave span {
    width: 3px;
    background: currentColor;
    border-radius: var(--radius-full);
    animation: audioWave 1s ease-in-out infinite;
}

.audio-wave span:nth-child(1) { height: 8px; animation-delay: 0s; }
.audio-wave span:nth-child(2) { height: 16px; animation-delay: 0.1s; }
.audio-wave span:nth-child(3) { height: 12px; animation-delay: 0.2s; }
.audio-wave span:nth-child(4) { height: 20px; animation-delay: 0.3s; }
.audio-wave span:nth-child(5) { height: 8px; animation-delay: 0.4s; }

@keyframes audioWave {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(0.5); }
}

.message-file {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.file-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-md);
}

.file-info {
    flex: 1;
}

.file-name {
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.file-size {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

/* ===== Typing Indicator ===== */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.typing-dots {
    display: flex;
    gap: 3px;
}

.typing-dots span {
    width: 6px;
    height: 6px;
    background: var(--text-tertiary);
    border-radius: var(--radius-full);
    animation: typingBounce 1.4s ease-in-out infinite;
}

.typing-dots span:nth-child(1) { animation-delay: 0s; }
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-4px); }
}

/* ===== Message Input ===== */
.message-input-area {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-glass);
    border-top: 1px solid var(--border-color);
}

.input-actions {
    display: flex;
    gap: var(--spacing-xs);
}

.message-input-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.message-input-wrapper:focus-within {
    border-color: var(--win-blue);
    box-shadow: 0 0 0 3px rgba(0, 120, 212, 0.1);
}

.emoji-btn,
.send-btn {
    flex-shrink: 0;
}

.emoji-btn {
    color: var(--text-secondary);
}

.send-btn {
    width: 40px;
    height: 40px;
    background: var(--win-blue);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all var(--transition-fast);
}

.send-btn:hover {
    background: var(--win-blue-dark);
    transform: scale(1.05);
}

.send-btn:active {
    transform: scale(0.95);
}

.message-input-wrapper textarea {
    flex: 1;
    border: none;
    background: transparent;
    resize: none;
    font-family: inherit;
    font-size: var(--font-size-md);
    max-height: 120px;
    line-height: 1.4;
    padding: var(--spacing-xs) 0;
}

.message-input-wrapper textarea:focus {
    outline: none;
}

.message-input-wrapper textarea::placeholder {
    color: var(--text-tertiary);
}

/* ===== Emoji Picker ===== */
.emoji-picker {
    position: absolute;
    bottom: 100%;
    left: var(--spacing-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-md);
    max-width: 320px;
    animation: slideUp 0.2s ease;
}

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

.emoji-categories {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: var(--spacing-sm);
}

.emoji-cat {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    font-size: 18px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.emoji-cat:hover,
.emoji-cat.active {
    background: var(--bg-tertiary);
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 2px;
    max-height: 200px;
    overflow-y: auto;
}

.emoji-item {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* ===== Chat Info Panel ===== */
.chat-info-panel {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: var(--chat-info-width);
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: 10;
}

.chat-info-panel.open {
    transform: translateX(0);
}

.chat-info-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.chat-info-content {
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.info-avatar-section {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.large-avatar {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-md);
}

.info-section {
    margin-bottom: var(--spacing-xl);
}

.info-section h4 {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.info-section p {
    color: var(--text-primary);
}

.participants-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.participant-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.participant-item:hover {
    background: var(--bg-tertiary);
}

.info-actions {
    margin-top: auto;
}

/* ===== Dock (Windows 11 Style) ===== */
.dock-container {
    position: fixed;
    z-index: 100;
    pointer-events: none;
}

.dock-container[data-position="bottom"] {
    bottom: 0;
    left: var(--dock-x);
    transform: translateX(-50%);
}

.dock-container[data-position="left"] {
    left: var(--dock-y);
    top: 50%;
    transform: translateY(-50%);
}

.dock-container[data-position="right"] {
    right: var(--dock-y);
    top: 50%;
    transform: translateY(-50%);
}

.dock {
    display: flex;
    flex-direction: column;
    pointer-events: auto;
    padding: var(--spacing-sm);
    transition: all var(--transition-slow);
    cursor: move;
}

.dock-container[data-position="bottom"] .dock {
    flex-direction: row;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.dock-container[data-position="left"] .dock {
    flex-direction: column;
    border-radius: 0 var(--radius-xl) var(--radius-xl) 0;
}

.dock-container[data-position="right"] .dock {
    flex-direction: column;
    border-radius: var(--radius-xl) 0 0 var(--radius-xl);
}

.dock-handle {
    position: absolute;
    width: 100px;
    height: 4px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-full);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.dock-container[data-position="bottom"] .dock-handle {
    top: 4px;
    left: 50%;
    transform: translateX(-50%);
}

.dock-container[data-position="left"] .dock-handle {
    left: auto;
    right: 4px;
    top: 50%;
    transform: translateY(-50%) rotate(90deg);
}

.dock-container[data-position="right"] .dock-handle {
    right: auto;
    left: 4px;
    top: 50%;
    transform: translateY(-50%) rotate(90deg);
}

.dock:hover .dock-handle {
    opacity: 1;
}

.dock-items {
    display: flex;
    gap: var(--spacing-xs);
    align-items: center;
}

.dock-container[data-position="left"] .dock-items,
.dock-container[data-position="right"] .dock-items {
    flex-direction: column;
}

.dock-item {
    position: relative;
    width: 48px;
    height: 48px;
    border: none;
    background: rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.dock-item:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateY(-4px);
}

.dock-item:active {
    transform: translateY(0) scale(0.95);
}

.dock-item.active {
    background: rgba(0, 120, 212, 0.2);
    color: var(--win-blue);
}

.dock-separator {
    width: 1px;
    height: 24px;
    background: rgba(0, 0, 0, 0.1);
}

.dock-container[data-position="left"] .dock-separator,
.dock-container[data-position="right"] .dock-separator {
    width: 24px;
    height: 1px;
}

.dock-tooltip {
    position: absolute;
    left: 100%;
    margin-left: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(32, 32, 32, 0.9);
    color: white;
    font-size: var(--font-size-sm);
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
}

.dock-item:hover .dock-tooltip {
    opacity: 1;
    visibility: visible;
}

/* ===== Modals ===== */
.modals-container {
    position: fixed;
    inset: 0;
    z-index: 200;
    pointer-events: none;
}

.modal {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    pointer-events: auto;
}

.modal.open {
    opacity: 1;
    visibility: visible;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 480px;
    max-height: 90vh;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-normal);
}

.modal.open .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: var(--font-size-xl);
}

.modal-body {
    padding: var(--spacing-lg);
    overflow-y: auto;
    max-height: calc(90vh - 70px);
}

/* ===== Settings ===== */
.settings-section {
    margin-bottom: var(--spacing-xl);
}

.settings-section h3 {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-light);
}

.setting-item label {
    font-size: var(--font-size-md);
}

/* ===== Profile ===== */
.profile-edit-avatar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.profile-edit-avatar img {
    width: 100px;
    height: 100px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease;
    max-width: 360px;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.toast-out {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastOut {
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

.toast-icon {
    flex-shrink: 0;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.toast-message {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    :root {
        --sidebar-width: 100%;
    }
    
    .sidebar {
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        z-index: 10;
        transform: translateX(0);
    }
    
    .sidebar.collapsed {
        transform: translateX(-100%);
    }
    
    .chat-area {
        width: 100%;
    }
    
    .chat-info-panel {
        width: 100%;
    }
    
    .dock-container[data-position="bottom"] {
        left: 50%;
    }
    
    .dock-container[data-position="left"],
    .dock-container[data-position="right"] {
        display: none;
    }
    
    .message {
        max-width: 85%;
    }
}

/* ===== Utilities ===== */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Voice Note Recording */
.voice-recording {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--status-busy);
    color: white;
    border-radius: var(--radius-lg);
    animation: pulseRecord 1s ease-in-out infinite;
}

@keyframes pulseRecord {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.voice-recording .recording-time {
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.voice-recording .stop-recording {
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.voice-recording .stop-recording svg {
    width: 18px;
    height: 18px;
}

/* Media Preview */
.media-preview {
    position: relative;
    display: inline-block;
    margin: var(--spacing-sm);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.media-preview img,
.media-preview video {
    max-width: 200px;
    max-height: 200px;
    display: block;
}

.media-preview .remove-preview {
    position: absolute;
    top: var(--spacing-xs);
    right: var(--spacing-xs);
    width: 24px;
    height: 24px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    border-radius: var(--radius-full);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.media-preview .remove-preview svg {
    width: 14px;
    height: 14px;
}