/* Modern UI Chat - Pill-style Tabs & Soft Messages */

/* Chat panel */
body.modern-ui #chat-panel {
    border-radius: var(--ui-radius-lg);
}

body.modern-ui #chat-main {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

/* Chat tabs - pill style */
body.modern-ui .chat-tabs-shell {
    border-bottom: none;
    background: var(--overlay-medium);
}

body.modern-ui .chat-tabs-shell::before {
    background: linear-gradient(to right, var(--overlay-medium) 20%, rgba(0, 0, 0, 0));
}

body.modern-ui .chat-tabs-shell::after {
    background: linear-gradient(to left, var(--overlay-medium) 20%, rgba(0, 0, 0, 0));
}

body.modern-ui #chat-tabs {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-base) var(--spacing-lg);
    background: var(--overlay-medium);
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    min-width: 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    touch-action: pan-x;
}

body.modern-ui #chat-tabs::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
}

body.modern-ui .chat-tab {
    flex: 0 0 auto;
    background: transparent;
    border: var(--ui-border-light);
    border-radius: var(--ui-radius-full);
    padding: 6px 14px;
    font-size: calc(0.8rem * var(--chat-font-scale, 1));
    font-weight: 500;
    color: var(--dim-color);
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
    box-shadow: none;
}

body.modern-ui .chat-tabs-scroll-arrow {
    background: rgba(14, 18, 27, 0.92);
    color: var(--text-color);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

body.modern-ui .chat-tabs-scroll-arrow-left {
    border-right: var(--ui-border-subtle);
}

body.modern-ui .chat-tabs-scroll-arrow-right {
    border-left: var(--ui-border-subtle);
}

body.modern-ui .chat-tabs-scroll-arrow:hover:not(:disabled) {
    background: rgba(var(--accent-color-rgb), 0.14);
    color: var(--text-color);
}

body.modern-ui .chat-tabs-scroll-arrow.has-hidden-activity {
    background: rgba(var(--warning-color-rgb), 0.18);
    color: var(--warning-color);
    box-shadow: inset 0 0 0 1px rgba(var(--warning-color-rgb), 0.28);
}

body.modern-ui .chat-tabs-scroll-arrow.has-hidden-attention {
    background: rgba(var(--warning-color-rgb), 0.24);
    color: var(--warning-color);
    box-shadow: inset 0 0 0 1px rgba(var(--warning-color-rgb), 0.45), 0 0 16px rgba(var(--warning-color-rgb), 0.18);
}

body.modern-ui .chat-tabs-scroll-arrow[data-hidden-count]::after {
    color: #17120b;
}

body.modern-ui .chat-tab::before {
    display: none;
}

body.modern-ui .chat-tab:hover {
    background: rgba(var(--accent-color-rgb), 0.1);
    border-color: rgba(var(--accent-color-rgb), 0.3);
    color: var(--text-color);
    transform: none;
    box-shadow: none;
}

body.modern-ui .chat-tab.active {
    background: var(--gradient-primary);
    border-color: transparent;
    color: white;
}

body.modern-ui .chat-tab.unread {
    color: var(--warning-color);
    border-color: rgba(var(--warning-color-rgb), 0.3);
}

body.modern-ui .chat-tab.attention {
    color: var(--warning-color);
    border-color: rgba(var(--warning-color-rgb), 0.7);
    background: rgba(var(--warning-color-rgb), 0.16);
    box-shadow: 0 0 0 1px rgba(var(--warning-color-rgb), 0.3), 0 0 18px rgba(var(--warning-color-rgb), 0.22);
    animation: whisper-tab-flash-modern 0.9s ease-in-out infinite;
}

body.modern-ui .chat-tab.unread.active {
    color: white;
}

@keyframes whisper-tab-flash-modern {
    0%, 100% {
        background: rgba(var(--warning-color-rgb), 0.08);
        box-shadow: 0 0 0 1px rgba(var(--warning-color-rgb), 0.18), 0 0 0 rgba(var(--warning-color-rgb), 0);
    }
    50% {
        background: rgba(var(--warning-color-rgb), 0.26);
        box-shadow: 0 0 0 1px rgba(var(--warning-color-rgb), 0.5), 0 0 20px rgba(var(--warning-color-rgb), 0.32);
    }
}

/* Chat messages container */
body.modern-ui #chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    background: var(--overlay-light);
    font-size: calc(0.85rem * var(--chat-font-scale, 1));
}

/* Individual messages */
body.modern-ui .chat-message {
    padding: 6px 10px;
    border-radius: var(--ui-radius-sm);
    transition: background var(--transition-fast);
    font-size: 0.85rem;
    line-height: 1.5;
    min-width: 0;
    max-width: 100%;
    overflow-wrap: anywhere;
    word-break: break-word;
}

body.modern-ui .chat-message:hover {
    background: rgba(var(--accent-color-rgb), 0.05);
}

body.modern-ui .msg-time {
    color: var(--dim-color);
    font-size: calc(0.68rem * var(--chat-font-scale, 1));
    opacity: 0.7;
}

body.modern-ui .msg-user {
    font-weight: 600;
    cursor: pointer;
    transition: color var(--transition-fast);
}

body.modern-ui .msg-user:hover {
    color: var(--accent-color);
}

/* System messages */
body.modern-ui .chat-message.system {
    color: var(--dim-color);
    font-style: italic;
    padding-left: 16px;
    border-left: 2px solid rgba(var(--accent-color-rgb), 0.3);
}

/* Chat input area */
body.modern-ui #chat-input-area {
    display: flex;
    align-items: center;
    gap: var(--spacing-base);
    padding: var(--spacing-lg);
    background: var(--overlay-medium);
    border-top: var(--ui-border-subtle);
}

body.modern-ui #chat-input-area > span:first-child {
    color: var(--accent-color);
    font-weight: 600;
}

body.modern-ui #chat-input {
    flex: 1;
    background: rgba(0, 0, 0, 0.2);
    border: var(--ui-border-light);
    border-radius: var(--ui-radius-full);
    padding: 10px 16px;
    font-size: calc(0.9rem * var(--chat-font-scale, 1));
    color: var(--text-color);
}

body.modern-ui #chat-input:focus {
    border-color: rgba(var(--accent-color-rgb), 0.3);
    background: rgba(0, 0, 0, 0.3);
    outline: none;
    box-shadow: none;
}

body.modern-ui #chat-char-count {
    font-size: calc(0.75rem * var(--chat-font-scale, 1));
    color: var(--dim-color);
}

/* Chat resize handle */
body.modern-ui .resize-handle {
    background: rgba(var(--accent-color-rgb), 0.2);
    border-radius: var(--ui-radius-lg) var(--ui-radius-lg) 0 0;
}

body.modern-ui .resize-handle:hover {
    background: rgba(var(--accent-color-rgb), 0.4);
}

body.modern-ui .resize-handle-bar {
    background: var(--accent-color);
    width: 50px;
    height: 3px;
    border-radius: var(--ui-radius-full);
}


/* Top First Chat Mode - Modern UI */
body.modern-ui #chat-panel.chat-top-first #chat-tabs-shell {
    order: 3;
    border-top: var(--ui-border-subtle);
    border-bottom: none;
}

body.modern-ui #chat-panel.chat-top-first #chat-tabs {
    border-top: none;
}

body.modern-ui #chat-panel.chat-top-first #chat-input-area {
    order: 1;
    border-bottom: var(--ui-border-subtle);
    border-top: none;
}

body.modern-ui #chat-panel.chat-top-first #chat-messages {
    order: 2;
}