/* ============================================================
   workshop.css — Protocol Workshop page styles
   ============================================================ */

/* ---------- layout ---------- */
.workshop-body {
    width: min(var(--max-w), calc(100% - 2rem));
    margin: 1.8rem auto 5rem;
    display: grid;
    grid-template-columns: 420px 1fr;
    grid-template-rows: auto 1fr;
    gap: 1.4rem;
    align-items: start;
}

/* ---------- template picker (full-width top row) ---------- */
.template-row {
    grid-column: 1 / -1;
}

.template-row-label {
    font-size: 0.75rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.7rem;
}

.template-scroll {
    display: flex;
    gap: 0.75rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    scrollbar-width: thin;
    scrollbar-color: var(--rule) transparent;
}

.template-chip {
    flex-shrink: 0;
    padding: 0.5rem 1rem;
    border: 1px solid var(--rule);
    border-radius: 999px;
    background: var(--card);
    color: var(--ink-soft);
    font-family: var(--font-body);
    font-size: 0.92rem;
    cursor: pointer;
    white-space: nowrap;
    transition: border-color 150ms, background 150ms, color 150ms, box-shadow 150ms;
}

.template-chip:hover {
    border-color: var(--accent);
    color: var(--accent-dark);
    background: var(--accent-bg);
}

.template-chip.active {
    border-color: var(--accent);
    background: var(--accent);
    color: #fff;
    box-shadow: 0 3px 12px rgba(143,47,34,0.28);
}

.template-divider {
    flex-shrink: 0;
    width: 1px;
    background: var(--rule-light);
    align-self: stretch;
    margin: 0 0.25rem;
}

/* ---------- left panel: editor + metadata ---------- */
.editor-panel {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.panel-box {
    background: var(--card);
    border: 1px solid var(--rule-light);
    border-radius: 16px;
    padding: 1.2rem;
    box-shadow: 0 4px 20px var(--shadow-sm);
}

.panel-box-title {
    font-size: 0.75rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.panel-box-title::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--rule-light);
}

/* code editor textarea */
.code-editor {
    width: 100%;
    min-height: 240px;
    font-family: "Menlo", "Consolas", "Monaco", monospace;
    font-size: 0.88rem;
    line-height: 1.55;
    padding: 0.9rem 1rem;
    border: 1px solid var(--rule);
    border-radius: 10px;
    background: #fefcf6;
    color: var(--ink);
    resize: vertical;
    transition: border-color 150ms, box-shadow 150ms;
    tab-size: 2;
}

.code-editor:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(143,47,34,0.10);
}

.editor-hint {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    font-style: italic;
    color: var(--muted);
}

.editor-hint a {
    color: var(--accent-dark);
    text-decoration: underline;
    text-decoration-color: transparent;
    transition: text-decoration-color 150ms;
}
.editor-hint a:hover { text-decoration-color: var(--accent-dark); }

/* metadata form */
.meta-form {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.meta-field {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.meta-field label {
    font-size: 0.73rem;
    letter-spacing: 0.13em;
    text-transform: uppercase;
    color: var(--muted);
}

.meta-field input,
.meta-field textarea,
.meta-field select {
    font-family: var(--font-body);
    font-size: 0.98rem;
    padding: 0.6rem 0.85rem;
    border: 1px solid var(--rule);
    border-radius: 10px;
    background: rgba(255,255,255,0.65);
    color: var(--ink);
    transition: border-color 150ms, box-shadow 150ms;
}

.meta-field input:focus,
.meta-field textarea:focus,
.meta-field select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(143,47,34,0.09);
}

.meta-field textarea { resize: vertical; min-height: 70px; }
.meta-field .hint { font-size: 0.78rem; font-style: italic; color: var(--muted); }

.meta-field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

/* tag chips display */
.tag-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.3rem;
    min-height: 1.4rem;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.18rem 0.6rem;
    background: var(--accent-bg);
    border: 1px solid var(--accent-border);
    border-radius: 999px;
    font-size: 0.8rem;
    color: var(--accent-dark);
}

.tag-chip button {
    background: none;
    border: none;
    padding: 0;
    color: var(--accent-dark);
    font-size: 0.9rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0.6;
}
.tag-chip button:hover { opacity: 1; }

/* ---------- syntax guide ---------- */
.guide {
    padding: 0;
    overflow: hidden;
}

.guide-summary {
    list-style: none;
    cursor: pointer;
    padding: 1rem 1.2rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--accent-dark);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    transition: background 150ms;
    user-select: none;
}

.guide-summary::-webkit-details-marker { display: none; }
.guide-summary:hover { background: var(--accent-bg); }

.guide-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 700;
}

.guide[open] .guide-summary {
    border-bottom: 1px solid var(--rule-light);
}

.guide-body {
    padding: 1.2rem 1.4rem 1.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--ink-soft);
}

.guide-body h4.guide-h {
    margin: 1.5rem 0 0.5rem;
    font-size: 0.82rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-dark);
}

.guide-lead { margin-top: 0; }

.guide-body p { margin: 0.4rem 0; }

.guide-note {
    font-style: italic;
    color: var(--muted);
    font-size: 0.9rem;
}

.guide-code {
    background: #fefcf6;
    border: 1px solid var(--rule-light);
    border-left: 3px solid var(--accent);
    border-radius: 8px;
    padding: 0.7rem 0.9rem;
    margin: 0.5rem 0;
    font-family: "Menlo", "Consolas", "Monaco", monospace;
    font-size: 0.82rem;
    line-height: 1.55;
    white-space: pre;
    overflow-x: auto;
    color: var(--ink);
}

.guide-comment { color: var(--muted); font-style: italic; }

.guide-body code {
    background: rgba(143,47,34,0.07);
    border: 1px solid var(--accent-border);
    border-radius: 5px;
    padding: 0.05rem 0.35rem;
    font-family: "Menlo", "Consolas", "Monaco", monospace;
    font-size: 0.84rem;
    color: var(--accent-dark);
}

.guide-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.4rem 0;
}

.guide-table td {
    padding: 0.35rem 0.5rem;
    border-bottom: 1px solid var(--rule-light);
    vertical-align: middle;
}

.guide-table td:first-child {
    white-space: nowrap;
    width: 1%;
    padding-right: 1.2rem;
}

.guide-table code { background: none; border: none; padding: 0; }

.guide-footer {
    margin-top: 1.3rem !important;
    padding-top: 0.9rem;
    border-top: 1px solid var(--rule-light);
    font-size: 0.9rem;
    color: var(--muted);
}

.guide-footer a { color: var(--accent-dark); }

/* ---------- right panel: preview ---------- */
.preview-panel {
    position: sticky;
    top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.preview-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--rule-light);
    margin-bottom: -1px;
}

.preview-tab {
    padding: 0.5rem 1.1rem;
    font-family: var(--font-body);
    font-size: 0.88rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--muted);
    cursor: pointer;
    transition: color 150ms, border-color 150ms;
    margin-bottom: -1px;
}
.preview-tab.active {
    color: var(--accent-dark);
    border-bottom-color: var(--accent);
    font-weight: 600;
}
.preview-tab:hover:not(.active) { color: var(--ink-soft); }

.preview-pane {
    background: var(--card);
    border: 1px solid var(--rule-light);
    border-radius: 16px;
    padding: 1.5rem;
    min-height: 360px;
    box-shadow: 0 4px 20px var(--shadow-sm);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    overflow: auto;
}

.preview-pane.hidden { display: none; }

#w-preview {
    width: 100%;
    text-align: center;
}

#w-preview svg {
    max-width: 100%;
    height: auto;
}

#w-reference-pane img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

.preview-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    font-style: italic;
    color: var(--muted);
    font-size: 0.95rem;
}

.preview-error {
    color: var(--accent);
    font-size: 0.88rem;
    font-family: monospace;
    padding: 1rem;
    background: rgba(143,47,34,0.05);
    border-radius: 8px;
    white-space: pre-wrap;
    word-break: break-word;
}

/* ---------- action bar ---------- */
.action-bar {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--rule-light);
}

.action-bar-left {
    margin-right: auto;
    font-size: 0.88rem;
    font-style: italic;
    color: var(--muted);
}

.submit-note {
    grid-column: 1 / -1;
    text-align: right;
    font-size: 0.85rem;
    font-style: italic;
    color: var(--muted);
    margin: 0.4rem 0 0;
}

/* ---------- responsive ---------- */
@media (max-width: 860px) {
    .workshop-body {
        grid-template-columns: 1fr;
    }
    .preview-panel {
        position: static;
    }
}