/*devgagan ilove u baby*/

:root {
    --primary-color: #00D9FF;
    --primary-dark: #00A8CC;
    --primary-glow: rgba(0, 217, 255, 0.3);
    --secondary-color: #FF6B6B;
    --background-color: #000000;
    --surface-color: #0f0f0f;
    --surface-elevated: #1a1a1a;
    --surface-hover: #252525;
    --text-primary: #FFFFFF;
    --text-secondary: #8B8B8B;
    --border-color: #2a2a2a;
    --success-color: #10B981;
    --error-color: #EF4444;
    --warning-color: #F59E0B;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.8);
    --blur-bg: rgba(15, 15, 15, 0.95);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Message Action Menu */
.message-action-menu {
    position: fixed;
    background: var(--surface-elevated);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 8px;
    z-index: 9999;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    min-width: 160px;
    animation: menuSlide 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes menuSlide {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(-10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.action-menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: 10px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    font-size: 14px;
    font-weight: 500;
}

.action-menu-item:hover {
    background: var(--surface-hover);
}

.action-menu-item:active {
    transform: scale(0.98);
}

.action-menu-item.delete {
    color: var(--error-color);
}

.action-menu-item.delete:hover {
    background: rgba(239, 68, 68, 0.1);
}

.action-menu-item svg {
    flex-shrink: 0;
}

/* Message States */
.chat-message.message-active {
    box-shadow: 0 0 0 2px var(--primary-color);
    transform: scale(1.02);
}

.edited-badge {
    font-size: 10px;
    opacity: 0.6;
    font-style: italic;
    margin-left: 6px;
}

/* Authentication Pages */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, #000000 0%, #0f0f0f 100%);
}

.auth-container {
    width: 100%;
    max-width: 420px;
}

.auth-box {
    background: var(--surface-color);
    border-radius: 24px;
    padding: 32px 24px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.auth-header {
    text-align: center;
    margin-bottom: 32px;
}

.logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 16px;
    margin-bottom: 16px;
    color: white;
    box-shadow: 0 8px 24px var(--primary-glow);
}

.auth-header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--primary-color), #00A8CC);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 14px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--background-color);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 16px;
    transition: all 0.3s;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 217, 255, 0.1);
}

.form-group small {
    display: block;
    margin-top: 6px;
    color: var(--text-secondary);
    font-size: 12px;
}

.checkbox-group {
    margin: 24px 0;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    cursor: pointer;
    user-select: text;
}

.checkbox-label input[type="checkbox"] {
    margin-right: 12px;
    margin-top: 2px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.checkbox-label span {
    color: var(--text-secondary);
    font-size: 13px;
}

.checkbox-label a {
    color: var(--primary-color);
    text-decoration: none;
}

.btn {
    padding: 14px 24px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 16px var(--primary-glow);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-block {
    width: 100%;
    display: block;
}

.alert {
    padding: 12px 16px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.auth-footer p {
    color: var(--text-secondary);
    font-size: 14px;
}

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

.auth-info {
    display: none;
}

/* Chat Page */
.chat-page {
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

.chat-container {
    display: flex;
    height: 100vh;
    height: 100dvh;
    position: relative;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: var(--background-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar.hidden {
    transform: translateX(-100%);
}

.sidebar-header {
    padding: 14px 16px;
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--primary-color);
    flex-shrink: 0;
    box-shadow: 0 0 16px var(--primary-glow);
    background: var(--surface-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.user-avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px var(--primary-glow);
}

.user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-avatar.no-avatar {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.user-avatar-icon {
    width: 24px;
    height: 24px;
    color: white;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-details h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 3px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    letter-spacing: -0.2px;
}

.user-status {
    font-size: 11px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.user-status.online {
    color: var(--success-color);
}

.user-status.online::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--success-color);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px var(--success-color);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.2); }
}

.sidebar-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
    align-items: center;
}

.btn-icon {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border: none;
    background: var(--surface-elevated);
    color: var(--text-secondary);
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.btn-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--primary-glow);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-icon:hover::before {
    width: 100%;
    height: 100%;
}

.btn-icon svg {
    width: 19px;
    height: 19px;
    position: relative;
    z-index: 1;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-icon:hover {
    background: var(--surface-hover);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 217, 255, 0.2);
}

.btn-icon:active {
    transform: translateY(0) scale(0.95);
}

.btn-icon.btn-logout {
    background: rgba(239, 68, 68, 0.08);
    color: var(--error-color);
}

.btn-icon.btn-logout::before {
    background: rgba(239, 68, 68, 0.15);
}

.btn-icon.btn-logout:hover {
    background: rgba(239, 68, 68, 0.15);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.sidebar-search {
    padding: 12px 16px;
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
}

.sidebar-search input {
    width: 100%;
    padding: 12px 16px;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 15px;
}

.sidebar-search input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.chat-list {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 20px;
}

.chat-item {
    display: flex;
    gap: 12px;
    padding: 14px 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    background: var(--background-color);
}

.chat-item::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.chat-item:hover::after {
    opacity: 0.5;
}

.chat-item:hover {
    background: var(--surface-color);
    transform: translateX(4px);
}

.chat-item:active {
    transform: translateX(4px) scale(0.98);
}

.chat-item.active {
    background: var(--surface-color);
    border-left: 3px solid var(--primary-color);
    padding-left: 13px;
}

.chat-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, var(--primary-color), var(--primary-dark));
    box-shadow: 0 0 12px var(--primary-glow);
}

.chat-avatar {
    position: relative;
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--surface-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.chat-item:hover .chat-avatar {
    transform: scale(1.05);
}

.chat-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.chat-avatar.no-avatar {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    box-shadow: 0 4px 12px var(--primary-glow);
}

.chat-avatar-icon {
    width: 26px;
    height: 26px;
    color: white;
}

.online-indicator {
    position: absolute;
    bottom: 1px;
    right: 1px;
    width: 13px;
    height: 13px;
    background: var(--success-color);
    border: 2.5px solid var(--background-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--success-color);
    animation: pulse 2s ease-in-out infinite;
}

.chat-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.chat-header-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
}

.chat-header-info h4 {
    font-size: 15px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    letter-spacing: -0.2px;
    flex: 1;
    margin-right: 8px;
}

.chat-time {
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
    font-weight: 500;
    letter-spacing: 0.2px;
}

.chat-preview {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.chat-preview p {
    font-size: 13px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    line-height: 1.4;
}

.unread-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    font-size: 11px;
    font-weight: 700;
    padding: 3px 7px;
    border-radius: 10px;
    margin-left: 8px;
    min-width: 20px;
    text-align: center;
    box-shadow: 0 2px 8px var(--primary-glow);
    animation: badgePulse 2s ease-in-out infinite;
}

@keyframes badgePulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    animation: fadeIn 0.6s ease;
}

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

.empty-state p {
    margin-bottom: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.empty-state small {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Chat Area */
.chat-area {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    background: var(--background-color);
    z-index: 99;
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.chat-area.active {
    transform: translateX(0);
}

.chat-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    padding: 20px;
}

.logo-large {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: white;
    box-shadow: 0 12px 40px var(--primary-glow);
}

.chat-welcome h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--primary-color), #00A8CC);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Chat Header */
.chat-header {
    background: var(--surface-color);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 10;
}

.chat-header-user {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 0;
}

.mobile-back {
    display: flex !important;
    width: 36px;
    height: 36px;
    margin-right: 4px;
}

.chat-header .chat-avatar {
    width: 38px;
    height: 38px;
}

.chat-header .chat-avatar-icon {
    width: 20px;
    height: 20px;
}

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

.chat-header .chat-header-info h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-header-actions {
    display: flex;
    gap: 4px;
}

/* Chat Messages */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    scroll-behavior: smooth;
    background: linear-gradient(180deg, var(--background-color) 0%, rgba(15, 15, 15, 0.5) 100%);
}

.chat-message {
    max-width: 75%;
    padding: 10px 14px;
    border-radius: 16px;
    word-wrap: break-word;
    animation: messageSlide 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.2s;
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.chat-message.own {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    box-shadow: 0 4px 12px var(--primary-glow);
    position: relative;
}

.chat-message.own::before {
    content: '';
    position: absolute;
    right: -8px;
    bottom: 0;
    width: 0;
    height: 0;
    border-left: 8px solid var(--primary-dark);
    border-top: 8px solid transparent;
}

.chat-message.other {
    background: var(--surface-color);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    position: relative;
}

.chat-message.other::before {
    content: '';
    position: absolute;
    left: -8px;
    bottom: 0;
    width: 0;
    height: 0;
    border-right: 8px solid var(--surface-color);
    border-top: 8px solid transparent;
}

.chat-message-text {
    font-size: 15px;
    line-height: 1.5;
    letter-spacing: -0.1px;
}

.chat-message-media img,
.chat-message-media video {
    max-width: 100%;
    max-height: 300px;
    border-radius: 12px;
    display: block;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: transform 0.2s;
}

.chat-message-media img:active {
    transform: scale(0.98);
}

.chat-message-media audio {
    width: 100%;
    max-width: 280px;
}

.chat-message-file {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
}

.btn-download {
    padding: 8px 14px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    margin-left: auto;
    transition: all 0.3s;
}

.btn-download:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--primary-glow);
}

.chat-message-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 6px;
    font-size: 10px;
    opacity: 0.8;
}

.chat-message-timer {
    background: rgba(239, 68, 68, 0.3);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 10px;
    font-weight: 600;
}

.chat-message-status {
    color: var(--success-color);
    font-size: 12px;
}

/* Typing Indicator */
.typing-indicator {
    padding: 8px 12px;
    display: flex;
    gap: 4px;
    align-items: center;
    justify-content: center;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: scale(1);
        opacity: 0.5;
    }
    30% {
        transform: scale(1.2);
        opacity: 1;
    }
}

/* Chat Input - NO TIMER */
.chat-input-container {
    background: var(--surface-color);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-color);
    padding: 10px 12px;
    position: sticky;
    bottom: 0;
}

.chat-input-wrapper {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.chat-input-wrapper input[type="text"] {
    flex: 1;
    padding: 11px 14px;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 22px;
    color: var(--text-primary);
    font-size: 15px;
    max-height: 100px;
}

.chat-input-wrapper input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

.btn-attach {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border: none;
    background: var(--surface-elevated);
    color: var(--text-secondary);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-attach:active {
    background: var(--surface-hover);
    transform: scale(0.95);
}

.btn-send {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border: none;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    box-shadow: 0 4px 12px var(--primary-glow);
}

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

#filePreview {
    padding: 10px 0;
}

/* Modal - Premium Design */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    align-items: flex-end;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--surface-color);
    border-radius: 24px 24px 0 0;
    width: 100%;
    max-height: 85vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-color);
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface-elevated);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 28px;
    cursor: pointer;
    line-height: 1;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-close:active {
    transform: scale(0.9);
}

.modal-body {
    padding: 20px;
    max-height: calc(85vh - 80px);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* Search Input in Modal */
.modal-body input[type="text"] {
    width: 100%;
    padding: 12px 16px;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 15px;
    margin-bottom: 16px;
    transition: all 0.3s;
}

.modal-body input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(0, 217, 255, 0.1);
}

.search-results {
    margin-top: 16px;
}

.user-result {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 8px;
    background: var(--surface-elevated);
    border: 1px solid transparent;
}

.user-result:active {
    background: var(--surface-hover);
    border-color: var(--primary-color);
    transform: scale(0.98);
}

.user-result-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    background: var(--surface-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 2px solid var(--border-color);
}

.user-result-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.user-result-avatar.no-avatar {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-color: var(--primary-color);
}

.user-result-avatar svg {
    width: 26px;
    height: 26px;
    color: white;
}

.user-result-info h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 2px;
}

.user-result-info p {
    font-size: 13px;
    color: var(--text-secondary);
}

.profile-avatar-section {
    text-align: center;
    margin-bottom: 24px;
}

.profile-avatar-large {
    width: 100px;
    height: 100px;
    margin: 0 auto 16px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
    box-shadow: 0 0 20px var(--primary-glow);
    background: var(--surface-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-avatar-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-avatar-large.no-avatar {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

/* Image Viewer Modal */
.image-viewer-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.image-viewer-modal.active {
    display: flex;
}

.image-viewer-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.image-viewer-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.image-viewer-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.image-viewer-close:active {
    transform: scale(0.9);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-color), var(--primary-dark));
    border-radius: 3px;
    transition: all 0.3s;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
    box-shadow: 0 0 8px var(--primary-glow);
}

/* Loading */
.loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px 20px;
    font-size: 14px;
}

/* Desktop Responsive */
@media (min-width: 768px) {
    .auth-container {
        max-width: 900px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    
    .auth-info {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }
    
    .info-card {
        background: rgba(0, 217, 255, 0.05);
        border: 1px solid rgba(0, 217, 255, 0.2);
        border-radius: 16px;
        padding: 24px;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .info-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 8px 24px var(--primary-glow);
        border-color: var(--primary-color);
    }
    
    .info-card h3 {
        font-size: 16px;
        margin-bottom: 8px;
        color: var(--primary-color);
    }
    
    .info-card p {
        color: var(--text-secondary);
        font-size: 14px;
    }
    
    .chat-container {
        display: grid;
        grid-template-columns: 380px 1fr;
    }
    
    .sidebar {
        position: relative;
        width: 380px;
        transform: translateX(0);
        border-right: 1px solid var(--border-color);
    }
    
    .sidebar.hidden {
        transform: translateX(0);
    }
    
    .chat-area {
        position: relative;
        transform: translateX(0);
        width: auto;
    }
    
    .chat-area.active {
        transform: translateX(0);
    }
    
    .mobile-back {
        display: none !important;
    }
    
    .chat-message {
        max-width: 60%;
    }
    
    .modal {
        align-items: center;
    }
    
    .modal-content {
        border-radius: 24px;
        max-width: 500px;
        width: 90%;
    }
    
    .btn-icon:hover {
        transform: translateY(-2px);
    }
    
    .chat-item:hover {
        transform: translateX(6px);
    }
}

/* Mobile-specific */
@media (max-width: 767px) {
    .chat-input-wrapper {
        gap: 6px;
    }
    
    .chat-input-wrapper input[type="text"] {
        font-size: 16px;
        padding: 10px 12px;
    }
    
    .btn-icon {
        width: 34px;
        height: 34px;
        min-width: 34px;
    }
    
    .btn-icon svg {
        width: 18px;
        height: 18px;
    }
    
    .btn-send {
        width: 38px;
        height: 38px;
        min-width: 38px;
    }
    
    .btn-attach {
        width: 38px;
        height: 38px;
    }
}