/* General Reset and Body Styling */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans-serif);
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

/* Main Chat Container Layout */
.chat-container {
    display: flex;
    width: 90vw;
    height: 90vh;
    max-width: 1400px;
    background-color: var(--color-surface-light);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

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

.chat-header {
    padding: 24px;
    border-bottom: 1px solid var(--color-border);
}

.chat-header h1 {
    font-family: var(--font-serif);
    font-size: 28px;
    font-weight: 600;
}

/* Chat Messages */
.chat-messages {
    flex-grow: 1;
    padding: 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column-reverse;
    gap: 16px;
}

.message-group-status {
    text-align: center;
    font-size: 12px;
    color: var(--color-text-secondary);
    margin: 8px 0;
}

.message-group {
    display: flex;
    flex-direction: column;
    max-width: 70%;
}

.message-group.user {
    align-self: flex-end;
    align-items: flex-end;
}

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

.message-bubble {
    padding: 12px 16px;
    border-radius: 18px;
    max-width: 100%;
}

.message-group.bot .message-bubble {
    background-color: var(--color-surface-mid);
    border-top-left-radius: 4px;
}

.message-group.user .message-bubble {
    background-color: var(--color-primary);
    color: white;
    border-top-right-radius: 4px;
}

.message-bubble p {
    line-height: 1.6;
}

.message-bubble ul {
    list-style-position: inside;
    padding-left: 8px;
    margin-top: 8px;
}
.message-bubble li {
    margin-bottom: 4px;
}

/* --- Files Sidebar --- */
.files-sidebar {
    width: 280px;
    background-color: var(--color-surface-light);
    padding: 24px;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--color-border);
}

.files-sidebar h4 {
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 20px;
    color: var(--color-text-primary);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.attached-files-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
    flex-grow: 1;
}

.attached-files-list li {
    display: flex;
    align-items: center;
    background-color: transparent;
    padding: 8px;
    border-radius: 8px;
    font-size: 14px;
    transition: background-color 0.2s ease;
}

.attached-files-list li:hover {
    background-color: var(--color-surface-mid);
}

.attached-files-list li span {
    flex-grow: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding-right: 8px;
    color: var(--color-text-secondary);
}

.attached-files-list li:hover span {
    color: var(--color-text-primary);
}

.icon-button.small {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}
.icon-button.small .material-symbols-outlined {
    font-size: 18px;
}


/* Chat Footer / Input Area */
.chat-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--color-border);
    background-color: var(--color-surface-light);
}

.input-wrapper {
    display: flex;
    align-items: center;
    background-color: var(--color-surface-mid);
    border-radius: 12px;
    padding: 4px;
}

.input-wrapper input {
    flex-grow: 1;
    border: none;
    background: none;
    padding: 12px;
    font-size: 16px;
    color: var(--color-text-primary);
    outline: none;
}

.icon-button {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: color 0.2s ease;
}

.icon-button:hover {
    color: var(--color-primary);
}

.icon-button .material-symbols-outlined {
    font-size: 24px;
}

.send-button {
    background-color: var(--color-primary);
    color: white;
    border-radius: 8px;
}

.send-button:hover {
    color: white;
    opacity: 0.9;
}
.replay-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: inherit;
    opacity: 0.7;
    transition: transform 0.2s, opacity 0.2s;
}

.replay-btn:hover {
    opacity: 1;
    transform: scale(1.1);
}


.icon-button.recording .material-symbols-outlined {
    color: var(--color-error, #e74c3c);
    animation: pulse 1.5s infinite;
}

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