:root {
    --masader-red: #f95959;
    --masader-red-dark: #e04b4b;
    --chat-bg: #fff8f0;
    --chat-border: rgba(0, 0, 0, 0.1);
}

/* ----------------------------------------------------------------------- */
/* Shared message styles (used by both the page and the floating widget)   */
/* ----------------------------------------------------------------------- */
.masader-chat-thread {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.masader-msg {
    display: flex;
    width: 100%;
}

.masader-msg__bubble {
    max-width: 85%;
    padding: 0.75rem 1rem;
    border-radius: 14px;
    line-height: 1.55;
    font-size: 0.95rem;
    word-wrap: break-word;
    overflow-wrap: anywhere;
}

.masader-msg--user {
    justify-content: flex-end;
}

.masader-msg--user .masader-msg__bubble {
    background: var(--masader-red);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.masader-msg--bot {
    justify-content: flex-start;
}

.masader-msg--bot .masader-msg__bubble {
    background: #fff;
    color: #1f2937;
    border: 1px solid var(--chat-border);
    border-bottom-left-radius: 4px;
}

.masader-msg__bubble p {
    margin: 0 0 0.5rem;
}
.masader-msg__bubble p:last-child {
    margin-bottom: 0;
}
.masader-msg__bubble a {
    color: var(--masader-red);
    font-weight: 600;
    text-decoration: underline;
}
.masader-msg__bubble code {
    background: rgba(0, 0, 0, 0.06);
    padding: 0.1rem 0.3rem;
    border-radius: 4px;
    font-size: 0.85em;
}
.masader-msg__bubble ul,
.masader-msg__bubble ol {
    margin: 0.25rem 0 0.5rem;
    padding-left: 1.25rem;
}

.masader-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.5rem 0;
    font-size: 0.85rem;
    display: block;
    overflow-x: auto;
}
.masader-table th,
.masader-table td {
    border: 1px solid var(--chat-border);
    padding: 0.4rem 0.6rem;
    text-align: left;
    white-space: nowrap;
}
.masader-table thead th {
    background: rgba(249, 89, 89, 0.08);
    font-weight: 700;
    color: #1f2937;
}
.masader-table tbody tr:nth-child(even) {
    background: rgba(0, 0, 0, 0.02);
}

/* Dataset citation cards */
.masader-datasets {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.masader-dataset-card {
    display: block;
    padding: 0.6rem 0.8rem;
    border: 1px solid var(--chat-border);
    border-radius: 10px;
    background: #fffdfb;
    transition: border-color 0.15s ease, transform 0.15s ease;
}
.masader-dataset-card:hover {
    border-color: var(--masader-red);
    transform: translateY(-1px);
    text-decoration: none;
}
.masader-dataset-card__name {
    font-weight: 700;
    color: var(--masader-red);
    font-size: 0.9rem;
}
.masader-dataset-card__meta {
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: 0.15rem;
}
.masader-dataset-card__desc {
    font-size: 0.8rem;
    color: #374151;
    margin-top: 0.3rem;
}

/* Typing indicator */
.masader-typing {
    display: inline-flex;
    gap: 4px;
    align-items: center;
}
.masader-typing span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--masader-red);
    opacity: 0.4;
    animation: masader-bounce 1.2s infinite ease-in-out;
}
.masader-typing span:nth-child(2) {
    animation-delay: 0.15s;
}
.masader-typing span:nth-child(3) {
    animation-delay: 0.3s;
}
@keyframes masader-bounce {
    0%,
    80%,
    100% {
        transform: scale(0.7);
        opacity: 0.4;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

.masader-error {
    color: #b91c1c;
    font-size: 0.85rem;
}

/* Suggestion chips */
.masader-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.masader-suggestion {
    border: 1px solid var(--chat-border);
    background: #fffdfb;
    color: #374151;
    border-radius: 999px;
    padding: 0.4rem 0.85rem;
    font-size: 0.8rem;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease;
}
.masader-suggestion:hover {
    border-color: var(--masader-red);
    color: var(--masader-red);
}

/* ----------------------------------------------------------------------- */
/* Composer (input row), shared                                            */
/* ----------------------------------------------------------------------- */
.masader-composer {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
}
.masader-composer textarea {
    flex: 1;
    resize: none;
    border: 2px solid var(--chat-border);
    border-radius: 12px;
    padding: 0.6rem 0.9rem;
    font-size: 0.95rem;
    line-height: 1.4;
    max-height: 140px;
    outline: none;
    font-family: inherit;
}
.masader-composer textarea:focus {
    border-color: var(--masader-red);
}
.masader-send {
    background: var(--masader-red);
    color: #fff;
    border: none;
    border-radius: 12px;
    width: 44px;
    height: 44px;
    flex-shrink: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s ease;
}
.masader-send:hover {
    background: var(--masader-red-dark);
}
.masader-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ----------------------------------------------------------------------- */
/* Dedicated /chat page layout                                             */
/* ----------------------------------------------------------------------- */
.masader-chat-page {
    max-width: 820px;
    margin: 0 auto;
    padding: 1.5rem 1rem 2rem;
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 12rem);
}
.masader-chat-page__header {
    text-align: center;
    margin-bottom: 1.25rem;
}
.masader-chat-page__header h1 {
    font-weight: 800;
    font-size: 1.9rem;
    color: #1f2937;
}
.masader-chat-page__header p {
    color: #6b7280;
    margin-top: 0.25rem;
}
.masader-chat-page__thread {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    background: var(--chat-bg);
    border: 1px solid var(--chat-border);
    border-radius: 16px;
    margin-bottom: 1rem;
}
.masader-chat-page__composer {
    position: sticky;
    bottom: 0;
}

/* Clear-chat toolbar (dedicated page) */
.masader-chat-toolbar {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 0.5rem;
}
.masader-clear-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: transparent;
    border: 1px solid var(--chat-border);
    color: #6b7280;
    border-radius: 8px;
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    cursor: pointer;
    transition: border-color 0.15s ease, color 0.15s ease;
}
.masader-clear-btn:hover {
    border-color: var(--masader-red);
    color: var(--masader-red);
}

/* Clear button inside the widget header */
#masader-widget-clear {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0.85;
}
#masader-widget-clear:hover {
    opacity: 1;
}

/* ----------------------------------------------------------------------- */
/* Temporary activity-log panel (debug)                                    */
/* ----------------------------------------------------------------------- */
.masader-log-panel {
    border: 1px dashed var(--chat-border);
    border-radius: 12px;
    background: #1e1e2e;
    color: #e5e7eb;
    margin-bottom: 1rem;
    font-size: 0.78rem;
    overflow: hidden;
}
.masader-log-panel > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    cursor: pointer;
    padding: 0.5rem 0.8rem;
    font-weight: 600;
    color: #cbd5e1;
    list-style: none;
    user-select: none;
}
.masader-log-panel__title {
    flex-shrink: 0;
}
.masader-log-panel__usage {
    margin-left: auto;
    color: #a5b4fc;
    font-weight: 600;
    font-size: 0.68rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 55%;
}
.masader-log-panel > summary::-webkit-details-marker {
    display: none;
}
.masader-log-panel__tag {
    display: inline-block;
    margin-left: 0.4rem;
    padding: 0.05rem 0.4rem;
    border-radius: 999px;
    background: rgba(249, 89, 89, 0.25);
    color: #fca5a5;
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.masader-log {
    max-height: 180px;
    overflow-y: auto;
    padding: 0.4rem 0.8rem 0.6rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    line-height: 1.5;
}
.masader-log__lines {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}
.masader-log__line {
    display: flex;
    gap: 0.5rem;
    white-space: pre-wrap;
    word-break: break-word;
}
.masader-log__time {
    color: #6b7280;
    flex-shrink: 0;
}
.masader-log__level {
    flex-shrink: 0;
    font-weight: 700;
    color: #60a5fa;
}
.masader-log__line--warning .masader-log__level {
    color: #fbbf24;
}
.masader-log__line--error .masader-log__level,
.masader-log__line--critical .masader-log__level {
    color: #f87171;
}
.masader-log__msg {
    color: #e5e7eb;
}
.masader-log-panel--widget {
    margin: 0 0.75rem 0.5rem;
}
.masader-log-panel--widget .masader-log {
    max-height: 110px;
}

/* ----------------------------------------------------------------------- */
/* Floating widget                                                         */
/* ----------------------------------------------------------------------- */
.masader-fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--masader-red);
    color: #fff;
    border: none;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(249, 89, 89, 0.45);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: transform 0.15s ease, background 0.15s ease;
}
.masader-fab:hover {
    transform: scale(1.06);
    background: var(--masader-red-dark);
}

.masader-widget {
    position: fixed;
    bottom: 88px;
    right: 20px;
    width: min(400px, calc(100vw - 40px));
    height: min(600px, calc(100vh - 120px));
    background: var(--chat-bg);
    border: 1px solid var(--chat-border);
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.18);
    display: none;
    flex-direction: column;
    overflow: hidden;
    z-index: 1000;
}
.masader-widget.is-open {
    display: flex;
}
.masader-widget__header {
    background: var(--masader-red);
    color: #fff;
    padding: 0.85rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.masader-widget__header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
}
.masader-widget__header button {
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    font-size: 1.1rem;
    opacity: 0.85;
}
.masader-widget__header button:hover {
    opacity: 1;
}
.masader-widget__thread {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}
.masader-widget__composer {
    padding: 0.75rem;
    border-top: 1px solid var(--chat-border);
    background: #fff;
}