/* ==========================================
   Alog - Markdown Editor
   Split-pane: Editor | Preview
   ========================================== */

/* ------------------------------------------
   Editor Layout
   ------------------------------------------ */
.editor-page {
    min-height: calc(100vh - var(--header-height));
    display: flex;
    flex-direction: column;
    max-width: 960px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-2xl);
}

/* ------------------------------------------
   Editor Header Bar
   ------------------------------------------ */
.editor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-primary);
}

.editor-header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.editor-header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.editor-back {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition);
}

.editor-back:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.editor-status {
    font-size: var(--font-size-sm);
    color: var(--text-tertiary);
    font-weight: 500;
}

/* ------------------------------------------
   Auth Required Notice
   ------------------------------------------ */
.editor-auth-notice {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

.editor-auth-card {
    text-align: center;
    max-width: 400px;
}

.editor-auth-card svg {
    margin-bottom: var(--spacing-md);
    opacity: 0.7;
}

.editor-auth-card h2 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.editor-auth-card p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

/* ------------------------------------------
   Editor Content Sections
   ------------------------------------------ */
.editor-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    flex: 1;
}

.editor-cover-section .form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.editor-cover-section .form-input::placeholder {
    color: var(--text-tertiary);
}

.editor-tags-section {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) 0;
}

.editor-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.editor-tag-input {
    flex: 1;
    min-width: 120px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    outline: none;
    padding: var(--spacing-xs) 0;
}

.editor-tag-input::placeholder {
    color: var(--text-tertiary);
}

.editor-toolbar {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    flex-shrink: 0;
    z-index: 10;
}

.toolbar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    width: 34px;
    height: 34px;
    padding: 0;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    cursor: pointer;
    background: none;
    border: none;
    font-size: var(--font-size-xs);
}

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

.toolbar-btn-paywall {
    width: auto;
    padding: 0 var(--spacing-sm);
    color: var(--color-accent);
}

.toolbar-divider {
    width: 1px;
    height: 20px;
    background: var(--border-primary);
    margin: 0 var(--spacing-xs);
}

.editor-toolbar-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.editor-toolbar-center {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.editor-toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.editor-toolbar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    cursor: pointer;
    background: none;
    border: none;
}

.editor-toolbar-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.editor-toolbar-btn.active {
    color: var(--color-accent-light);
    background: rgba(45, 45, 45, 0.08);
}

.editor-toolbar-btn svg {
    width: 18px;
    height: 18px;
}

.editor-toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border-primary);
    margin: 0 var(--spacing-xs);
}

.editor-title-input {
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    outline: none;
    width: 100%;
    padding: var(--spacing-sm) 0;
}

.editor-title-input::placeholder {
    color: var(--text-tertiary);
}

.editor-save-status {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.editor-save-status.saving {
    color: var(--color-warning);
}

.editor-save-status.saved {
    color: var(--color-success);
}

.editor-save-dot {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background: currentColor;
}


/* ------------------------------------------
   Split Pane
   ------------------------------------------ */
.editor-split {
    flex: 1;
    display: flex;
    overflow: hidden;
    border: 1px solid var(--border-primary);
    border-top: none;
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    min-height: 500px;
}

.editor-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
}

.preview-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
    border-left: 1px solid var(--border-primary);
}

.preview-header {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-primary);
}

.preview-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    font-size: var(--font-size-sm);
    line-height: 1.8;
    color: var(--text-primary);
}

.editor-pane-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-primary);
    flex-shrink: 0;
}

.editor-pane-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.editor-divider {
    width: 4px;
    background: var(--border-primary);
    cursor: col-resize;
    flex-shrink: 0;
    transition: background var(--transition);
    position: relative;
}

.editor-divider:hover,
.editor-divider.dragging {
    background: var(--color-accent);
}

.editor-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 2px;
    height: 32px;
    background: var(--text-tertiary);
    border-radius: var(--radius-full);
    opacity: 0;
    transition: opacity var(--transition);
}

.editor-divider:hover::after {
    opacity: 1;
}


/* ------------------------------------------
   Markdown Editor Textarea
   ------------------------------------------ */
.editor-textarea-wrap {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.editor-textarea {
    width: 100%;
    height: 100%;
    padding: var(--spacing-lg) var(--spacing-xl);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    line-height: 1.8;
    border: none;
    outline: none;
    resize: none;
    tab-size: 2;
    overflow-y: auto;
}

.editor-textarea::placeholder {
    color: var(--text-tertiary);
}

.editor-textarea::selection {
    background: rgba(45, 45, 45, 0.2);
}

/* Line numbers (optional overlay) */
.editor-line-numbers {
    position: absolute;
    top: 0;
    left: 0;
    width: 48px;
    padding: var(--spacing-lg) 0;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-primary);
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    line-height: 1.8;
    color: var(--text-tertiary);
    text-align: right;
    user-select: none;
    overflow: hidden;
}

.editor-line-numbers span {
    display: block;
    padding-right: var(--spacing-sm);
}

.editor-textarea-wrap.with-line-numbers .editor-textarea {
    padding-left: 60px;
}


/* ------------------------------------------
   Preview Pane
   ------------------------------------------ */
.editor-preview {
    flex: 1;
    overflow-y: auto;
    background: #ffffff;
    padding: var(--spacing-xl) var(--spacing-2xl);
    color: #374151;
    font-size: 1.0625rem;
    line-height: 1.8;
}

/* Preview inherits article-body styles */
.editor-preview h1 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: #1a1a2e;
    margin-top: 2rem;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.editor-preview h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: #1a1a2e;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid #e5e7eb;
}

.editor-preview h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: #1a1a2e;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.editor-preview p {
    margin-bottom: 1.25rem;
}

.editor-preview a {
    color: var(--color-accent);
    text-decoration: underline;
}

.editor-preview strong {
    font-weight: 700;
    color: #1a1a2e;
}

.editor-preview ul,
.editor-preview ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}

.editor-preview ul {
    list-style: disc;
}

.editor-preview ol {
    list-style: decimal;
}

.editor-preview li {
    margin-bottom: 0.5rem;
}

.editor-preview blockquote {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-md) var(--spacing-lg);
    background: #f9fafb;
    border-radius: var(--radius-md);
    color: #4b5563;
    font-style: italic;
}

.editor-preview code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: #f3f4f6;
    color: #e11d48;
    padding: 2px 6px;
    border-radius: 4px;
}

.editor-preview pre {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: #161b22;
    border-radius: var(--radius-md);
    overflow-x: auto;
}

.editor-preview pre code {
    background: transparent;
    color: #e6edf3;
    padding: 0;
    font-size: var(--font-size-sm);
}

.editor-preview img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
}

.editor-preview hr {
    margin: var(--spacing-2xl) 0;
    border: none;
    height: 1px;
    background: #e5e7eb;
}

.editor-preview table {
    width: 100%;
    margin: var(--spacing-lg) 0;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

.editor-preview thead th {
    background: #f9fafb;
    font-weight: 600;
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 2px solid #e5e7eb;
}

.editor-preview tbody td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid #f3f4f6;
}


/* ------------------------------------------
   Image Drop Zone
   ------------------------------------------ */
.editor-dropzone {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(45, 45, 45, 0.06);
    border: 2px dashed var(--color-accent);
    border-radius: var(--radius-md);
    z-index: 20;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    pointer-events: none;
}

.editor-textarea-wrap.dragging .editor-dropzone {
    opacity: 1;
    visibility: visible;
}

.editor-dropzone-content {
    text-align: center;
    color: var(--color-accent-light);
}

.editor-dropzone-content svg {
    width: 48px;
    height: 48px;
    margin-bottom: var(--spacing-md);
    opacity: 0.7;
}

.editor-dropzone-content p {
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.editor-image-uploading {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}


/* ------------------------------------------
   Paywall Marker
   ------------------------------------------ */
.editor-paywall-marker {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(45, 45, 45, 0.06);
    border: 1px dashed var(--color-accent);
    border-radius: var(--radius-md);
    color: var(--color-accent-light);
    font-size: var(--font-size-sm);
    cursor: pointer;
}

.editor-paywall-marker svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.editor-paywall-marker:hover {
    background: rgba(45, 45, 45, 0.1);
}

/* Preview paywall line */
.editor-preview .paywall-divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
    color: var(--color-accent);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.editor-preview .paywall-divider::before,
.editor-preview .paywall-divider::after {
    content: '';
    flex: 1;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--color-accent), transparent);
}


/* ------------------------------------------
   Editor Settings Panel
   ------------------------------------------ */
.editor-settings {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
}

.editor-settings h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-primary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
}

.price-input-wrap {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.price-currency {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--text-secondary);
}

.form-hint {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
    display: block;
}

.editor-settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-primary);
}

.editor-settings-title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-primary);
}

.editor-settings-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.editor-settings-section {
    margin-bottom: var(--spacing-xl);
}

.editor-settings-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

/* Cover image upload */
.editor-cover-upload {
    width: 100%;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 2px dashed var(--border-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    overflow: hidden;
}

.editor-cover-upload:hover {
    border-color: var(--text-tertiary);
    background: var(--bg-hover);
}

.editor-cover-upload img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.editor-cover-upload-placeholder {
    text-align: center;
    color: var(--text-tertiary);
}

.editor-cover-upload-placeholder svg {
    width: 24px;
    height: 24px;
    margin-bottom: var(--spacing-sm);
}

.editor-cover-upload-placeholder p {
    font-size: var(--font-size-xs);
}

/* Tags input */
.editor-tags-input {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--bg-input);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    min-height: 42px;
    cursor: text;
}

.editor-tags-input:focus-within {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(45, 45, 45, 0.1);
}

.editor-tags-input input {
    flex: 1;
    min-width: 80px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    outline: none;
    padding: 2px 4px;
}

.editor-tags-input input::placeholder {
    color: var(--text-tertiary);
}


/* ------------------------------------------
   View Modes
   ------------------------------------------ */
.editor-split.editor-only .editor-pane:last-child,
.editor-split.editor-only .editor-divider {
    display: none;
}

.editor-split.preview-only .editor-pane:first-child,
.editor-split.preview-only .editor-divider {
    display: none;
}


/* ------------------------------------------
   Word Count
   ------------------------------------------ */
.editor-word-count {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xs) var(--spacing-lg);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-primary);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.editor-word-count span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}


/* ------------------------------------------
   Responsive
   ------------------------------------------ */
@media (max-width: 768px) {
    .editor-split {
        flex-direction: column;
    }

    .editor-divider {
        width: 100%;
        height: 4px;
        cursor: row-resize;
    }

    .editor-toolbar {
        padding: var(--spacing-sm) var(--spacing-md);
        overflow-x: auto;
    }

    .editor-title-input {
        width: 150px;
        font-size: var(--font-size-base);
    }

    .editor-toolbar-center {
        display: none;
    }

    .editor-settings {
        width: 100%;
    }

    .editor-textarea {
        padding: var(--spacing-md);
    }

    .editor-preview {
        padding: var(--spacing-md) var(--spacing-lg);
    }
}