/* ================================================
   Blog Editor - CSS Styles
   Dark theme with Inter font family
   ================================================ */

:root {
    /* Colors - Dark Theme */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a24;
    --bg-elevated: #22222e;

    --text-primary: #f0f0f4;
    --text-secondary: #a0a0b0;
    --text-muted: #606070;

    --accent-primary: #6366f1;
    --accent-hover: #818cf8;
    --accent-secondary: #22d3ee;

    --border-color: #2a2a38;
    --border-hover: #3a3a48;

    --success: #22c55e;
    --warning: #eab308;
    --error: #ef4444;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;
    --font-mono: 'Fira Code', 'Consolas', monospace;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* ================================================
   Reset & Base Styles
   ================================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ================================================
   Navbar
   ================================================ */

.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-md) var(--space-xl);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1800px;
    margin: 0 auto;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.logo:hover {
    color: var(--accent-primary);
}

.desktop-menu {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    padding: var(--space-xs) var(--space-sm);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width var(--transition-fast);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: var(--space-xs);
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

@media (max-width: 768px) {
    .desktop-menu {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }
}

/* ================================================
   Main Editor Container
   ================================================ */

.editor-container {
    display: grid;
    grid-template-columns: 280px 1fr 1fr;
    gap: var(--space-md);
    padding: var(--space-md);
    flex: 1;
    max-width: 1800px;
    margin: 0 auto;
    width: 100%;
}

/* ================================================
   Metadata Panel
   ================================================ */

.metadata-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    height: fit-content;
    position: sticky;
    top: calc(60px + var(--space-md));
}

.metadata-panel h2 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23a0a0b0' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

/* ================================================
   Editor Panel
   ================================================ */

.editor-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.toolbar-group {
    display: flex;
    gap: 2px;
}

.toolbar-group:not(:last-child)::after {
    content: '';
    width: 1px;
    background: var(--border-color);
    margin-left: var(--space-sm);
}

.toolbar button {
    padding: var(--space-xs) var(--space-sm);
    min-width: 36px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.toolbar button:active {
    background: var(--accent-primary);
    color: white;
}

.toolbar-right {
    margin-left: auto;
}

.btn-collapse {
    background: var(--bg-tertiary) !important;
    border: 1px solid var(--border-color) !important;
    font-size: 0.75rem !important;
    padding: var(--space-xs) var(--space-sm) !important;
}

.btn-collapse:hover {
    background: var(--accent-primary) !important;
    border-color: var(--accent-primary) !important;
    color: white !important;
}

#markdown-editor {
    flex: 1;
    padding: var(--space-lg);
    background: var(--bg-secondary);
    border: none;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.9375rem;
    line-height: 1.7;
    resize: none;
    min-height: 500px;
}

#markdown-editor:focus {
    outline: none;
}

#markdown-editor::placeholder {
    color: var(--text-muted);
}

/* ================================================
   Preview Panel
   ================================================ */

.preview-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.preview-header h2 {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.preview-controls button {
    padding: var(--space-xs) var(--space-sm);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preview-controls button:hover {
    background: var(--bg-elevated);
    color: var(--text-primary);
}

.preview-content {
    flex: 1;
    padding: var(--space-xl);
    overflow-y: auto;
    min-height: 500px;
}

.preview-placeholder {
    color: var(--text-muted);
    font-style: italic;
}

/* Preview Content Styling (matches connorhorning.com) */
.preview-content h1 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.preview-content h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
}

.preview-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--space-lg);
    margin-bottom: var(--space-sm);
}

.preview-content p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

.preview-content ul,
.preview-content ol {
    margin-bottom: var(--space-md);
    padding-left: var(--space-xl);
    color: var(--text-secondary);
}

.preview-content li {
    margin-bottom: var(--space-xs);
}

.preview-content blockquote {
    border-left: 4px solid var(--accent-primary);
    padding-left: var(--space-lg);
    margin: var(--space-lg) 0;
    color: var(--text-secondary);
    font-style: italic;
}

.preview-content code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.875em;
    color: var(--accent-secondary);
}

.preview-content pre {
    background: var(--bg-tertiary);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--space-md) 0;
}

.preview-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.preview-content a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.preview-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--space-md) 0;
}

/* ================================================
   Export Panel
   ================================================ */

.export-panel {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--space-md) var(--space-xl);
    position: sticky;
    bottom: 0;
}

.export-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1800px;
    margin: 0 auto;
}

.export-actions {
    display: flex;
    gap: var(--space-md);
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

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

.export-info {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.export-info code {
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    color: var(--accent-secondary);
}

/* ================================================
   Modal
   ================================================ */

.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

.modal-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-lg);
}

.modal-body p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
}

.modal-body pre {
    background: var(--bg-tertiary);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: var(--space-lg);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-all;
}

/* ================================================
   Toast Notification
   ================================================ */

.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    color: var(--text-primary);
    font-size: 0.9375rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 1001;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--error);
}

/* ================================================
   Responsive Design
   ================================================ */

@media (max-width: 1200px) {
    .editor-container {
        grid-template-columns: 1fr 1fr;
    }

    .metadata-panel {
        grid-column: 1 / -1;
        position: static;
    }

    .form-row {
        grid-template-columns: repeat(4, 1fr);
    }

    .form-group {
        margin-bottom: 0;
    }

    .metadata-panel .form-group:first-of-type,
    .metadata-panel .form-group:nth-of-type(4),
    .metadata-panel .form-group:nth-of-type(5) {
        grid-column: span 2;
    }

    .metadata-panel {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-md);
        align-items: end;
    }

    .metadata-panel h2 {
        grid-column: 1 / -1;
        margin-bottom: 0;
    }
}

@media (max-width: 768px) {
    .editor-container {
        grid-template-columns: 1fr;
    }

    .metadata-panel {
        grid-template-columns: 1fr 1fr;
    }

    .metadata-panel .form-group:first-of-type {
        grid-column: 1 / -1;
    }

    .export-content {
        flex-direction: column;
        gap: var(--space-md);
    }

    .export-actions {
        flex-wrap: wrap;
        justify-content: center;
    }

    #markdown-editor,
    .preview-content {
        min-height: 300px;
    }

    .toolbar {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .editor-header {
        padding: var(--space-sm) var(--space-md);
    }

    .header-content h1 {
        display: none;
    }

    .metadata-panel {
        grid-template-columns: 1fr;
    }

    .metadata-panel .form-group:first-of-type,
    .metadata-panel .form-group:nth-of-type(4),
    .metadata-panel .form-group:nth-of-type(5) {
        grid-column: 1;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .export-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

/* ================================================
   Document Import Sections (DOCX & PDF)
   ================================================ */

.import-section {
    margin-bottom: var(--space-md);
}

.import-section>label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
}

.recommended-badge {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 6px;
    background: var(--success);
    color: white;
    border-radius: var(--radius-sm);
}

.fallback-badge {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 2px 6px;
    background: var(--text-muted);
    color: white;
    border-radius: var(--radius-sm);
}

.drop-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    background: var(--bg-tertiary);
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.drop-zone:hover {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.05);
}

.drop-zone.drag-over {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
    transform: scale(1.02);
}

.docx-drop-zone:hover {
    border-color: var(--success);
    background: rgba(34, 197, 94, 0.05);
}

.docx-drop-zone.drag-over {
    border-color: var(--success);
    background: rgba(34, 197, 94, 0.1);
}

.drop-zone .drop-icon {
    font-size: 1.5rem;
    opacity: 0.7;
}

.drop-zone .drop-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-align: center;
}

.import-progress {
    margin-top: var(--space-sm);
}

.progress-bar-container {
    width: 100%;
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: var(--space-xs);
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
    border-radius: 2px;
    transition: width var(--transition-fast);
}

.import-progress span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.divider {
    height: 1px;
    background: var(--border-color);
    margin: var(--space-lg) 0;
}

/* Responsive adjustments for import sections */
@media (max-width: 1200px) {
    .import-section {
        grid-column: 1 / -1;
    }

    .divider {
        grid-column: 1 / -1;
        margin: var(--space-md) 0;
    }
}