.md-answer {
    padding: 1rem;
    margin-bottom: 1rem;
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-left: 4px solid #2563eb;
    border-radius: .8rem
}

.md-answer strong {
    color: var(--pa-navy)
}

.md-answer p {
    margin: .35rem 0 0;
    color: var(--pa-muted)
}

.md-app {
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--pa-border);
    border-radius: 1rem
}

.md-toolbar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: .5rem;
    padding: .75rem;
    background: #f8fafc;
    border-bottom: 1px solid var(--pa-border)
}

.md-toolbar button,
.md-tabs button {
    padding: .5rem .7rem;
    color: #29445a;
    background: #fff;
    border: 1px solid var(--pa-border);
    border-radius: .5rem;
    font-weight: 700;
    font-size: .85rem;
    cursor: pointer;
}

.md-toolbar button:hover,
.md-tabs button.active {
    color: #fff;
    background: #2563eb;
    border-color: #2563eb
}

.md-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 34rem
}

.md-grid>section:first-child {
    border-right: 1px solid var(--pa-border)
}

.md-grid label,
.md-tabs {
    display: block;
    padding: .75rem;
    color: var(--pa-navy);
    background: #f8fafc;
    border-bottom: 1px solid var(--pa-border);
    font-weight: 800;
    margin: 0;
}

.md-grid textarea {
    display: block;
    width: 100%;
    min-height: 31rem;
    padding: 1rem;
    resize: vertical;
    border: 0;
    outline: 0;
    font: 14px/1.65 ui-monospace, monospace;
    font-family: inherit;
}

.md-tabs {
    display: flex;
    gap: .4rem
}

.md-output {
    height: 31rem;
    overflow: auto;
    padding: 1rem
}

.md-output pre {
    overflow: auto;
    padding: 1rem;
    color: #e5e7eb;
    background: #102235;
    border-radius: .7rem
}

.md-output code:not(pre code) {
    padding: .15rem .3rem;
    color: #be123c;
    background: #fff1f2;
    border-radius: .3rem;
    font-size: .85em;
}

.md-output blockquote {
    margin-left: 0;
    padding: .7rem 1rem;
    background: #f7fafc;
    border-left: 4px solid #2563eb;
    color: #526878
}

.md-output pre[data-source-wrap] {
    margin: 0;
    color: #e5e7eb;
    background: #102235;
    white-space: pre-wrap
}

.md-output img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1rem 0;
}

.md-output table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: .9em;
}

.md-output th,
.md-output td {
    padding: .55rem;
    border: 1px solid var(--pa-border);
}

.md-output th {
    background: #f5f8fb;
    font-weight: 700;
    text-align: left;
}

.md-output input[type="checkbox"] {
    margin-right: .5rem;
}

.md-app footer {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: .7rem;
    color: var(--pa-muted);
    background: #f8fafc;
    border-top: 1px solid var(--pa-border);
    font-size: .75rem
}

.muted {
    color: var(--pa-muted)
}

/* --- New Premium Features --- */
.pa-markdown-toolbar-group {
    display: flex;
    flex-wrap: wrap;
    gap: .45rem;
    align-items: center;
}

.pa-markdown-file-label {
    margin: 0;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .5rem .7rem;
    color: #29445a;
    background: #fff;
    border: 1px solid var(--pa-border);
    border-radius: .5rem;
    font-weight: 700;
    font-size: .85rem;
}

.pa-markdown-file-label:hover {
    color: #fff;
    background: #2563eb;
    border-color: #2563eb;
}

.pa-markdown-file-label input {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    opacity: 0;
}

.pa-btn-primary {
    padding: .5rem .7rem;
    color: #fff !important;
    background: #2563eb !important;
    border: 1px solid #2563eb !important;
    border-radius: .5rem;
    font-weight: 700;
    font-size: .85rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: .35rem;
}

.pa-btn-primary:hover {
    background: #1d4ed8 !important;
    border-color: #1d4ed8 !important;
}

.pa-markdown-format-toolbar {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .25rem;
    padding: .5rem 1rem;
    background: #fff;
    border-bottom: 1px solid var(--pa-border);
}

.pa-markdown-format-toolbar button {
    background: transparent;
    border: 1px solid transparent;
    border-radius: .4rem;
    padding: .4rem .6rem;
    color: #475569;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .85rem;
}

.pa-markdown-format-toolbar button:hover {
    background: #f1f5f9;
    color: var(--pa-navy);
}

.pa-markdown-format-toolbar .sep {
    width: 1px;
    height: 1.2rem;
    background: var(--pa-border);
    margin: 0 .25rem;
}

.pa-markdown-dropdown-wrap {
    position: relative;
    display: inline-block;
}

.pa-markdown-dropdown {
    position: absolute;
    right: 0;
    top: 100%;
    margin-top: .25rem;
    background: #fff;
    border: 1px solid var(--pa-border);
    border-radius: .5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, .1);
    z-index: 50;
    min-width: 12rem;
    padding: .5rem 0;
    display: flex;
    flex-direction: column;
}

.pa-markdown-dropdown[hidden] {
    display: none;
}

.pa-markdown-dropdown button {
    text-align: left;
    background: none;
    border: none;
    padding: .5rem 1rem;
    width: 100%;
    font-size: .85rem;
    color: var(--pa-navy);
    cursor: pointer;
    font-weight: 500;
    border-radius: 0;
}

.pa-markdown-dropdown button:hover {
    background: #f8fafc;
    color: #2563eb;
    border-color: transparent;
}

.pa-markdown-dropdown hr {
    margin: .25rem 0;
    border: none;
    border-top: 1px solid var(--pa-border);
}

.pa-markdown-options {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem 1.2rem;
    padding: .7rem 1rem;
    color: var(--pa-muted);
    font-size: .75rem;
    border-bottom: 1px solid var(--pa-border);
    background: #f8fafc;
}

.pa-markdown-options label {
    display: flex;
    align-items: center;
    gap: .35rem;
    cursor: pointer;
    padding: 0;
    border: none;
    font-weight: normal;
    background: transparent;
}

.pa-markdown-options input {
    accent-color: #2563eb;
}

.pa-markdown-stats {
    display: flex;
    gap: .75rem;
    color: var(--pa-muted);
    font-size: .75rem;
    flex-wrap: wrap;
}

.pa-markdown-stats span {
    display: inline-flex;
    align-items: center;
    gap: .25rem;
}

/* Fullscreen Mode */
body.pa-markdown-fullscreen-open {
    overflow: hidden;
}

.md-app.is-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1055;
    border-radius: 0;
    border: none;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.md-app.is-fullscreen .md-grid {
    flex: 1;
    min-height: 0;
}

.md-app.is-fullscreen .md-grid>section {
    min-height: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.md-app.is-fullscreen .md-output {
    height: 100%;
    min-height: 0;
    flex: 1;
}

.md-app.is-fullscreen .md-grid textarea {
    height: 100%;
    min-height: 0;
    flex: 1;
}

/* Syntax Guide */
.pa-markdown-guide {
    margin-top: 3rem;
    padding: 0 1rem;
}

.pa-markdown-guide h2 {
    color: var(--pa-navy);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.pa-markdown-guide p {
    color: var(--pa-muted);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.pa-markdown-guide table {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
}

.pa-markdown-guide th,
.pa-markdown-guide td {
    padding: 10px;
    border: 1px solid var(--pa-border);
    vertical-align: top;
}

.pa-markdown-guide th {
    background: #f8fafc;
    color: var(--pa-navy);
    text-align: left;
}

.pa-markdown-guide code {
    padding: .2rem .4rem;
    background: #f1f5f9;
    border-radius: .3rem;
    color: #e11d48;
}

@media(max-width:991px) {
    .md-grid {
        grid-template-columns: 1fr
    }

    .md-grid>section:first-child {
        border-right: 0;
        border-bottom: 1px solid var(--pa-border)
    }
}

@media(max-width:575px) {
    .md-toolbar {
        display: flex;
        flex-direction: column;
        align-items: stretch;
    }

    .pa-markdown-toolbar-group {
        display: grid;
        grid-template-columns: 1fr 1fr;
        width: 100%;
    }

    .md-app footer {
        flex-direction: column;
    }

    .pa-markdown-options {
        align-items: flex-start;
        flex-direction: column;
    }

    .pa-markdown-format-toolbar {
        display: grid;
        grid-template-columns: repeat(7, 1fr);
        gap: .25rem;
        padding: .5rem;
    }

    .pa-markdown-format-toolbar .sep {
        display: none;
    }
}