/* ==========================================================================
   SLPE.Blazor.RichTextEditor — Styles
   ==========================================================================
   All styles use CSS custom properties for theming. Override --rte-* variables
   in your application's CSS to customise colours.
   ========================================================================== */

/* ── CSS Custom Properties ── */

:root {
    --rte-accent: #2563eb;
    --rte-accent-hover: #1d4ed8;
    --rte-primary: #00173b;
    --rte-primary-hover: #001335;
    --rte-text: #2d3748;
    --rte-text-heading: #1a202c;
    --rte-text-muted: #6b7280;
    --rte-border: #d1d5db;
    --rte-bg: #ffffff;
    --rte-bg-toolbar: #f9fafb;
    --rte-bg-hover: #e5e7eb;
    --rte-bg-active: #dbeafe;
    --rte-bg-input: #f3f4f6;
    --rte-link: #00173b;
    --rte-ring: rgba(0, 23, 59, 0.3);
    --rte-ring-dialog: rgba(0, 23, 59, 0.2);
}

.dark {
    --rte-accent: #3b82f6;
    --rte-accent-hover: #2563eb;
    --rte-primary: #60a5fa;
    --rte-primary-hover: #93bbfc;
    --rte-text: #e5e7eb;
    --rte-text-heading: #f3f4f6;
    --rte-text-muted: #9ca3af;
    --rte-border: #4b5563;
    --rte-bg: #1f2937;
    --rte-bg-toolbar: #374151;
    --rte-bg-hover: #4b5563;
    --rte-bg-active: #1e3a5f;
    --rte-bg-input: #374151;
    --rte-link: #809ab8;
    --rte-ring: rgba(96, 165, 250, 0.4);
    --rte-ring-dialog: rgba(96, 165, 250, 0.3);
}


/* ── Container ── */

.rte-container {
    border: 1px solid var(--rte-border);
    border-radius: 0.5rem;
    display: flex;
    flex-direction: column;
    background: var(--rte-bg);
    overflow: hidden;
}


/* ── Toolbar ── */

.rte-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 2px;
    padding: 4px 6px;
    background: var(--rte-bg-toolbar);
    border-bottom: 1px solid var(--rte-bg-hover);
    min-height: 40px;
}


/* ── Toolbar Buttons ── */

.rte-btn {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    border-radius: 4px;
    cursor: pointer;
    color: var(--rte-text);
    padding: 4px;
    flex-shrink: 0;
}

.rte-btn:hover    { background: var(--rte-bg-hover); }
.rte-btn.active   { background: var(--rte-bg-active); color: var(--rte-accent); }
.rte-btn:disabled { opacity: 0.4; cursor: default; }
.rte-btn svg      { width: 18px; height: 18px; pointer-events: none; }


/* ── Toolbar Separator ── */

.rte-separator {
    width: 1px;
    height: 24px;
    background: var(--rte-border);
    margin: 0 4px;
    flex-shrink: 0;
}


/* ── Toolbar Select (heading/block-format dropdown) ── */

.rte-select {
    height: 32px;
    padding: 0 6px;
    border: 1px solid var(--rte-border);
    border-radius: 4px;
    background: var(--rte-bg);
    font-family: inherit;
    font-size: 13px;
    color: var(--rte-text);
    cursor: pointer;
    outline: none;
}

.rte-select:focus { border-color: var(--rte-accent); }


/* ── Editable Content Area ── */

.rte-content {
    padding: 1.5rem;
    overflow-y: auto;
    outline: none;
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--rte-text);
}

.rte-content:focus { box-shadow: inset 0 0 0 2px var(--rte-ring); }

/* Typography inside editor — matches handbook page styling for WYSIWYG fidelity */
.rte-content h1         { font-size: 1.8rem; margin: 0 0 1rem; font-weight: 700; color: var(--rte-text-heading); }
.rte-content h2         { font-size: 1.4rem; margin: 1.5rem 0 0.75rem; font-weight: 600; color: var(--rte-text-heading); }
.rte-content h3         { font-size: 1.2rem; margin: 1.25rem 0 0.5rem; font-weight: 600; color: var(--rte-text-heading); }
.rte-content h4         { font-size: 1.1rem; margin: 1rem 0 0.5rem; font-weight: 600; color: var(--rte-text-heading); }
.rte-content p          { margin: 0 0 1rem; }
.rte-content ul         { margin: 0 0 1rem; padding-left: 2rem; list-style-type: disc; }
.rte-content ol         { margin: 0 0 1rem; padding-left: 2rem; list-style-type: decimal; }
.rte-content li         { margin-bottom: 0.5rem; }
.rte-content a          { color: var(--rte-link); text-decoration: underline; }
.rte-content blockquote { border-left: 3px solid var(--rte-border); margin: 0 0 1rem; padding: 0.5rem 1rem; color: var(--rte-text-muted); }
.rte-content table      { width: 100%; border-collapse: collapse; margin: 0 0 1rem; }
.rte-content th,
.rte-content td         { border: 1px solid var(--rte-border); padding: 0.5rem 0.75rem; text-align: left; }
.rte-content th         { background: var(--rte-bg-input); font-weight: 600; }
.rte-content img        { max-width: 100%; height: auto; }


/* ── Code View (HTML source toggle) ── */

.rte-code-view {
    width: 100%;
    padding: 1rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
    line-height: 1.6;
    border: none;
    outline: none;
    resize: none;
    background: #1f2937;
    color: #e5e7eb;
    display: none;
}

.rte-container.code-active .rte-content   { display: none; }
.rte-container.code-active .rte-code-view { display: block; }


/* ── Fullscreen Mode ── */

.rte-fullscreen {
    position: fixed !important;
    inset: 0;
    z-index: 9999;
    border-radius: 0;
    border: none;
}

.rte-fullscreen .rte-content,
.rte-fullscreen .rte-code-view { flex: 1; }


/* ── Dialog Overlay (link / table insertion) ── */

.rte-dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.rte-dialog {
    background: var(--rte-bg);
    border-radius: 0.5rem;
    padding: 1.5rem;
    width: 400px;
    max-width: 90vw;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    font-family: inherit;
}

.rte-dialog h3 {
    margin: 0 0 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--rte-text-heading);
}

.rte-dialog label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--rte-text);
    margin-bottom: 0.25rem;
}

.rte-dialog input[type="text"],
.rte-dialog input[type="url"],
.rte-dialog input[type="number"] {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--rte-border);
    border-radius: 0.375rem;
    font-family: inherit;
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
    box-sizing: border-box;
    outline: none;
    background: var(--rte-bg);
    color: var(--rte-text);
}

.rte-dialog input:focus { border-color: var(--rte-primary); box-shadow: 0 0 0 2px var(--rte-ring-dialog); }

.rte-dialog .rte-dialog-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--rte-text);
}

.rte-dialog .rte-dialog-check input[type="checkbox"] { width: auto; margin: 0; }

.rte-dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 1rem;
}

.rte-dialog-actions button {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-family: inherit;
    font-size: 0.875rem;
    cursor: pointer;
    border: none;
}

.rte-dialog-actions .rte-btn-cancel       { background: var(--rte-bg-input); color: var(--rte-text); }
.rte-dialog-actions .rte-btn-cancel:hover  { background: var(--rte-bg-hover); }
.rte-dialog-actions .rte-btn-primary       { background: var(--rte-primary); color: white; }
.rte-dialog-actions .rte-btn-primary:hover { background: var(--rte-primary-hover); }


/* ── Mobile Overrides ── */

@media (max-width: 639px) {
    .rte-btn { width: 36px; height: 36px; }
    .rte-separator { display: none; }
    .rte-content { padding: 1rem; }
    .rte-dialog { width: calc(100vw - 2rem); max-width: 100vw; }
}