.main-content {
    padding: 0px;
}

*,
*::before,
*::after {
    box-sizing: inherit;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0;
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-text);
    letter-spacing: var(--letter-spacing-tight);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

h5 {
    font-size: var(--font-size-lg);
}

h6 {
    font-size: var(--font-size-md);
}

p {
    margin: 0 0 var(--space-16) 0;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
    color: var(--color-primary-hover);
}

code,
pre {
    font-family: var(--font-family-mono);
    font-size: calc(var(--font-size-base) * 0.95);
    background-color: var(--color-secondary);
    border-radius: var(--radius-sm);
}

code {
    padding: var(--space-1) var(--space-4);
}

pre {
    padding: var(--space-16);
    margin: var(--space-16) 0;
    overflow: auto;
    border: 1px solid var(--color-border);
}

pre code {
    background: none;
    padding: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-8) var(--space-16);
    border-radius: var(--radius-base);
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 1.5;
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-standard);
    border: none;
    text-decoration: none;
    position: relative;
}

.btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

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

.btn--primary:hover {
    background: var(--color-primary-hover);
}

.btn--primary:active {
    background: var(--color-primary-active);
}

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

.btn--secondary:hover {
    background: var(--color-secondary-hover);
}

.btn--secondary:active {
    background: var(--color-secondary-active);
}

.btn--outline {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.btn--outline:hover {
    background: var(--color-secondary);
}

.btn--sm {
    padding: var(--space-4) var(--space-12);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-sm);
}

.btn--lg {
    padding: var(--space-10) var(--space-20);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-md);
}

.btn--full-width {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Form elements */
.form-control {
    display: block;
    width: 100%;
    padding: var(--space-8) var(--space-12);
    font-size: var(--font-size-md);
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-base);
    transition: border-color var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
}

select.form-control {
    padding: var(--space-8) var(--space-12);
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-image: var(--select-caret-light);
    background-repeat: no-repeat;
    background-position: right var(--space-12) center;
    background-size: 16px;
    padding-right: var(--space-32);
}

/* Add a dark mode specific caret */
@media (prefers-color-scheme: dark) {
    select.form-control {
        background-image: var(--select-caret-dark);
    }
}

/* Also handle data-color-scheme */
[data-color-scheme="dark"] select.form-control {
    background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
    background-image: var(--select-caret-light);
}

.form-control:focus {
    border-color: var(--color-primary);
    outline: var(--focus-outline);
}

.form-label {
    display: block;
    margin-bottom: var(--space-8);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
}

.form-group {
    margin-bottom: var(--space-16);
}

/* Card component */
.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-card-border);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: box-shadow var(--duration-normal) var(--ease-standard);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card__body {
    padding: var(--space-16);
}

.card__header,
.card__footer {
    padding: var(--space-16);
    border-bottom: 1px solid var(--color-card-border-inner);
}

/* Status indicators - simplified with CSS variables */
.status {
    display: inline-flex;
    align-items: center;
    padding: var(--space-6) var(--space-12);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
}

.status--success {
    background-color: rgba(var(--color-success-rgb, 33, 128, 141), var(--status-bg-opacity));
    color: var(--color-success);
    border: 1px solid rgba(var(--color-success-rgb, 33, 128, 141), var(--status-border-opacity));
}

.status--error {
    background-color: rgba(var(--color-error-rgb, 192, 21, 47), var(--status-bg-opacity));
    color: var(--color-error);
    border: 1px solid rgba(var(--color-error-rgb, 192, 21, 47), var(--status-border-opacity));
}

.status--warning {
    background-color: rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-bg-opacity));
    color: var(--color-warning);
    border: 1px solid rgba(var(--color-warning-rgb, 168, 75, 47), var(--status-border-opacity));
}

.status--info {
    background-color: rgba(var(--color-info-rgb, 98, 108, 113), var(--status-bg-opacity));
    color: var(--color-info);
    border: 1px solid rgba(var(--color-info-rgb, 98, 108, 113), var(--status-border-opacity));
}

/* Container layout */
.container {
    width: 100%;
    margin-right: auto;
    margin-left: auto;
    padding-right: var(--space-16);
    padding-left: var(--space-16);
}

@media (min-width: 640px) {
    .container {
        max-width: var(--container-sm);
    }
}

@media (min-width: 768px) {
    .container {
        max-width: var(--container-md);
    }
}

@media (min-width: 1024px) {
    .container {
        max-width: var(--container-lg);
    }
}

@media (min-width: 1280px) {
    .container {
        max-width: var(--container-xl);
    }
}

/* Utility classes */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-4 {
    gap: var(--space-4);
}

.gap-8 {
    gap: var(--space-8);
}

.gap-16 {
    gap: var(--space-16);
}

.m-0 {
    margin: 0;
}

.mt-8 {
    margin-top: var(--space-8);
}

.mb-8 {
    margin-bottom: var(--space-8);
}

.mx-8 {
    margin-left: var(--space-8);
    margin-right: var(--space-8);
}

.my-8 {
    margin-top: var(--space-8);
    margin-bottom: var(--space-8);
}

.p-0 {
    padding: 0;
}

.py-8 {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
}

.px-8 {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
}

.py-16 {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
}

.px-16 {
    padding-left: var(--space-16);
    padding-right: var(--space-16);
}

.block {
    display: block;
}

.hidden {
    display: none;
}

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

:focus-visible {
    outline: var(--focus-outline);
    outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
    border: 1px solid var(--color-border-secondary);
}

@font-face {
    font-family: 'FKGroteskNeue';
    src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2') format('woff2');
}

/* END PERPLEXITY DESIGN SYSTEM */
/* WhatsApp Style Chat CSS - Standalone Version */
/* This file contains only chat-specific styles and should be included after your master CSS */

/* Main container */
.whatsapp-container {
    display: flex;
    height: 91vh;
    background: var(--color-background);
    font-family: var(--font-family-base);
}

/* Chat Sidebar */
.chat-sidebar {
    width: 360px;
    background: var(--color-surface);
    border-right: 1px solid var(--color-card-border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-sidebar-header {
    padding: var(--space-16) var(--space-20);
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: var(--space-12);
}

.user-profile .username {
    font-weight: var(--font-weight-medium);
    color: var(--color-btn-primary-text);
}

.header-actions {
    display: flex;
    gap: var(--space-8);
}

.header-actions .btn-icon {
    color: var(--color-btn-primary-text);
    background: var(--color-secondary);
    border-radius: var(--radius-full);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--duration-fast) var(--ease-standard);
    border: none;
    cursor: pointer;
}

.header-actions .btn-icon:hover {
    background: var(--color-secondary-hover);
}

.header-actions .btn-iconclose {
    color: var(--color-btn-primary-text);
    background: var(--color-secondary);
    border-radius: var(--radius-full);
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    transition: background var(--duration-fast) var(--ease-standard);
    border: none;
    cursor: pointer;
}

.header-actions .btn-iconclose:hover {
    background: var(--color-secondary-hover);
}

/* Search */
.chat-search {
    padding: var(--space-12) var(--space-16);
    background: var(--color-bg-1);
    border-bottom: 1px solid var(--color-card-border-inner);
}

.chat-search .search-box {
    position: relative;
}

.chat-search .search-box i {
    position: absolute;
    left: var(--space-12);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.chat-search .form-control {
    padding-left: var(--space-32);
    border-radius: var(--radius-full);
    border: none;
    background: var(--color-surface);
    font-size: var(--font-size-sm);
}

/* Chat List */
.chat-list {
    flex: 1;
    overflow-y: auto;
}

.chat-item {
    padding: var(--space-12) var(--space-16);
    display: flex;
    align-items: center;
    gap: var(--space-12);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-standard);
    border-bottom: 1px solid var(--color-card-border-inner);
}

.chat-item:hover {
    background: var(--color-bg-1);
}

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

.chat-avatar {
    width: var(--space-32);
    height: var(--space-32);
    border-radius: var(--radius-full);
    object-fit: cover;
}

.group-avatar {
    width: var(--space-32);
    height: var(--space-32);
    border-radius: var(--radius-full);
    background: var(--color-bg-5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

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

.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-4);
}

.chat-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-time {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

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

.last-message {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.sender {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
}

.unread-count {
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    font-size: var(--font-size-xs);
    padding: var(--space-2) var(--space-6);
    border-radius: var(--radius-full);
    min-width: var(--space-20);
    text-align: center;
    font-weight: var(--font-weight-medium);
}

/* Main Chat Area */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--color-background);
}

.chat-main-header {
    padding: var(--space-16) var(--space-20);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-card-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-contact-info {
    display: flex;
    align-items: center;
    gap: var(--space-12);
}

.contact-avatar {
    width: var(--space-24);
    height: var(--space-24);
    border-radius: var(--radius-full);
    object-fit: cover;
}

.contact-details {
    display: flex;
    flex-direction: column;
}

.contact-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    margin: 0;
}

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

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

.chat-actions {
    display: flex;
    gap: var(--space-8);
}

.chat-actions .btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-standard);
}

.chat-actions .btn-icon:hover {
    background: var(--color-secondary);
}

/* Messages Container */
.messages-container {
    flex: 1;
    padding: var(--space-16);
    overflow-y: auto;
    background-image: radial-gradient(circle at 20% 80%, rgba(var(--color-teal-500-rgb), 0.02) 0%, transparent 50%), radial-gradient(circle at 80% 20%, rgba(var(--color-brown-600-rgb), 0.02) 0%, transparent 50%);
}

.messages-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    padding-bottom: var(--space-16);
}

/* Date Separator */
.date-separator {
    text-align: center;
    margin: var(--space-16) 0;
}

.date-separator span {
    background: var(--color-secondary);
    color: var(--color-text-secondary);
    padding: var(--space-4) var(--space-12);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

/* Messages */
.message {
    display: flex;
    margin-bottom: var(--space-4);
}

.message.incoming {
    justify-content: flex-start;
}

.message.outgoing {
    justify-content: flex-end;
}

.message-content {
    max-width: 70%;
    padding: var(--space-8) var(--space-12);
    border-radius: var(--radius-lg);
    position: relative;
    word-wrap: break-word;
}

.message.incoming .message-content {
    background: var(--color-surface);
    border: 1px solid var(--color-card-border);
    border-bottom-left-radius: var(--radius-sm);
}

.message.outgoing .message-content {
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
    border-bottom-right-radius: var(--radius-sm);
}

.message-content p {
    margin: 0;
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
}

.message-time {
    font-size: var(--font-size-xs);
    margin-top: var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    justify-content: flex-end;
}

.message.incoming .message-time {
    color: var(--color-text-secondary);
}

.message.outgoing .message-time {
    color: rgba(var(--color-btn-primary-text-rgb, 252, 252, 249), 0.7);
}

.message-status {
    font-size: var(--font-size-xs);
}

.message-status.delivered {
    color: rgba(var(--color-btn-primary-text-rgb, 252, 252, 249), 0.7);
}

.message-status.read {
    color: var(--color-teal-300);
}

/* Typing Indicator */
.typing-indicator .message-content {
    background: var(--color-surface);
    border: 1px solid var(--color-card-border);
    padding: var(--space-12) var(--space-16);
}

.typing-dots {
    display: flex;
    gap: var(--space-4);
    align-items: center;
}

.typing-dots span {
    width: var(--space-6);
    height: var(--space-6);
    background: var(--color-text-secondary);
    border-radius: var(--radius-full);
    animation: typing var(--duration-normal) infinite;
}

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

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

@keyframes typing {

    0%,
    60%,
    100% {
        transform: translateY(0);
    }

    30% {
        transform: translateY(-10px);
    }
}

/* Message Input */
.message-input-container {
    padding: var(--space-16) var(--space-20);
    background: var(--color-surface);
    border-top: 1px solid var(--color-card-border);
    position: sticky;
    bottom: 0;
    z-index: 10;
}

.app-container {
    height: 100vh;
}

.message-input {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.attachment-btn,
.send-btn {
    width: var(--space-24);
    height: var(--space-24);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    background: var(--color-secondary);
    border: none;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-standard);
}

.attachment-btn:hover,
.send-btn:hover {
    background: var(--color-primary);
    color: var(--color-btn-primary-text);
}

.input-field {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
}

.input-field .form-control {
    flex: 1;
    border-radius: var(--radius-full);
    padding-right: var(--space-24);
    border: 1px solid var(--color-border);
}

.emoji-btn {
    position: absolute;
    right: var(--space-8);
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    cursor: pointer;
    padding: var(--space-4);
    border-radius: var(--radius-sm);
    transition: background var(--duration-fast) var(--ease-standard);
}

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

/* Emoji Picker */
.emoji-picker {
    position: absolute;
    bottom: 80px;
    right: var(--space-20);
    background: var(--color-surface);
    border: 1px solid var(--color-card-border);
    border-radius: var(--radius-base);
    box-shadow: var(--shadow-lg);
    padding: var(--space-12);
    z-index: 1000;
}

.emoji-picker.hidden {
    display: none;
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: var(--space-4);
}

.emoji {
    font-size: var(--font-size-xl);
    padding: var(--space-4);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-standard);
}

.emoji:hover {
    background: var(--color-secondary);
}

.respoback {
    display: none;
}

/* Chat-specific responsive design */
@media (max-width: 768px) {
    .whatsapp-container {
        position: relative;
    }

    .chat-sidebar {
        position: absolute;
        left: -360px;
        top: 0;
        height: 100vh;
        z-index: 1000;
        transition: left var(--duration-normal) var(--ease-standard);
    }

    .chat-sidebar.open {
        left: 0;
    }

    .respoback {
        display: flex;
    }

    .chat-main {
        width: 100%;
    }

    .message-content {
        max-width: 85%;
    }
}

@media (max-width: 480px) {

    .respoback {
        display: flex;
    }

    .chat-sidebar {
        width: 100%;
        left: -100%;
    }

    .chat-sidebar-header {
        padding: var(--space-12) var(--space-16);
    }

    .chat-search {
        padding: var(--space-8) var(--space-12);
    }

    .chat-item {
        padding: var(--space-8) var(--space-12);
    }

    .chat-avatar,
    .group-avatar {
        width: var(--space-24);
        height: var(--space-24);
    }

    .contact-avatar {
        width: var(--space-20);
        height: var(--space-20);
    }

    .chat-main-header {
        padding: var(--space-12) var(--space-16);
    }

    .messages-container {
        padding: var(--space-12);
    }

    .message-input-container {
        padding: var(--space-12);
    }

    .message-input {
        gap: var(--space-6);
    }

    .attachment-btn,
    .send-btn {
        width: var(--space-20);
        height: var(--space-20);
    }

    .message-content {
        max-width: 90%;
        padding: var(--space-6) var(--space-10);
    }

    .emoji-picker {
        right: var(--space-12);
        bottom: 70px;
    }
}

.chat-avatar-round {
    width: 38px;
    height: 38px;
    background: var(--color-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-md);
}

/* tiny fade-in for new messages */
.message.fade-in {
    animation: chatFade 240ms ease;
}

@keyframes chatFade {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* sending state */
.message.sending {
    opacity: 0.75;
    filter: blur(.2px);
    transform: translateY(1px);
}

/* typing dots */
.typing-dots {
    display: flex;
    gap: 6px;
    align-items: center;
}

.typing-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #bbb;
    opacity: 0.6;
    animation: blink 1s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: .12s;
}

.typing-dots span:nth-child(3) {
    animation-delay: .24s;
}

@keyframes blink {
    0% {
        opacity: .2
    }

    50% {
        opacity: 1
    }

    100% {
        opacity: .2
    }
}

/* small avatar round */
.chat-avatar-round {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    background: var(--color-primary);
}

.chat-avatar-wrapper {
    width: 48px;
    flex: 0 0 48px;
    margin-right: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-avatar-round {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
    background: var(--color-primary);
}


.sender-label {
    font-size: 12px;
    line-height: 1.2;
}

/* For incoming messages: left aligned */
.message.incoming .sender-label {
    text-align: left;
    color: #979797;
}

/* For outgoing messages: right aligned */
.message.outgoing .sender-label {
    text-align: right;
    margin-right: 4px;
    color: #d8dbe1;
}


.chat-group-header {
    font-size: 13px;
    font-weight: 600;
    color: var(--muted, #666);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 8px 12px;
    background: var(--chat-group-bg, #f9f9f9);
    border-top: 1px solid var(--border, #e5e5e5);
    border-bottom: 1px solid var(--border, #e5e5e5);
}

/* Inline Loading & Empty States */
.chat-loading-inline,
.chat-loading-main,
.chat-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--space-20);
    color: var(--color-text-secondary);
    text-align: center;
    gap: var(--space-12);
}

.chat-loading-inline i,
.chat-loading-main i {
    font-size: var(--font-size-2xl);
    color: var(--color-primary);
}

.chat-empty-state {
    font-size: var(--font-size-lg);
    opacity: 0.7;
}
/* ==========================================================================
   MODERNIZATION & SKELETON OVERRIDES
   ========================================================================== */

/* 1. Shimmer Animation Definition */
@keyframes shimmer {
    0%   { background-position: -468px 0; }
    100% { background-position: 468px 0; }
}

.skeleton {
    background: #f6f7f8;
    background-image: linear-gradient(to right, #f6f7f8 0%, #edeef1 20%, #f6f7f8 40%, #f6f7f8 100%);
    background-repeat: no-repeat;
    background-size: 800px 104px;
    display: inline-block;
    position: relative;
    animation: shimmer 1.5s linear infinite forwards;
    border-radius: var(--radius-sm);
}

.skeleton--circle { border-radius: 50%; }

/* 2. Glassmorphism Headers */
.chat-sidebar-header, .chat-main-header {
    backdrop-filter: blur(10px) saturate(180%);
    -webkit-backdrop-filter: blur(10px) saturate(180%);
    background-color: rgba(255, 255, 255, 0.72) !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1) !important;
    z-index: 10;
}

[data-color-scheme="dark"] .chat-sidebar-header, 
[data-color-scheme="dark"] .chat-main-header {
    background-color: rgba(30, 41, 59, 0.75) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
}

.chat-sidebar-header .user-profile .username { color: var(--color-text) !important; }
.header-actions .btn-icon, .btn-iconclose { 
    background: rgba(var(--color-slate-500-rgb), 0.08) !important; 
    color: var(--color-text) !important;
}

/* 3. Skeleton Loading Components */
.skeleton-contact {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    gap: 12px;
}

.skeleton-msg {
    display: flex;
    margin-bottom: 16px;
}

.skeleton-msg--in  { justify-content: flex-start; }
.skeleton-msg--out { justify-content: flex-end; }

/* 4. Message Bubble Redesign */
.message-content {
    box-shadow: 0 2px 4px rgba(0,0,0,0.04);
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.message-content:hover { transform: translateY(-1px); }

.message.outgoing .message-content {
    background: linear-gradient(135deg, var(--color-primary), var(--color-teal-600)) !important;
    border: none !important;
}

.message.incoming .message-content {
    background: var(--color-surface) !important;
    border: 1px solid var(--color-card-border) !important;
}

/* 5. Smooth Transitions */
.chat-item {
    transition: all 0.2s ease-out;
    margin: 2px 8px;
    border-radius: var(--radius-md);
    border-bottom: none !important;
}

.chat-item:hover {
    background: rgba(var(--color-teal-500-rgb), 0.04);
    transform: translateX(4px);
}

.chat-item.active {
    background: rgba(var(--color-teal-500-rgb), 0.08);
    box-shadow: inset 3px 0 0 var(--color-primary);
}