:root {
    --primary: #06b6d4;
    --primary-dark: #0891b2;
    --primary-soft: #ecfeff;
    --accent: #0ea5e9;

    --bg-body: #F3F4F6;
    --bg-surface: #ffffff;
    --bg-subtle: #F9FAFB;

    --text-main: #1F2937;
    --text-muted: #6B7280;
    --text-soft: #9CA3AF;

    --border: #E5E7EB;
    --border-strong: #D1D5DB;

    --danger: #EF4444;
    --danger-bg: #FEF2F2;
    --danger-text: #991B1B;
    --warn: #F59E0B;
    --warn-bg: #FFFBEB;
    --warn-text: #92400E;
    --success: #10B981;
    --success-bg: #ECFDF5;
    --success-text: #065F46;
    --info: #3B82F6;
    --info-bg: #EFF6FF;
    --info-text: #1E40AF;

    --radius: 12px;
    --radius-sm: 8px;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

    --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: var(--sans);
    background: var(--bg-body);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    padding-top: 108px;
}
a { color: var(--primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.mono { font-family: var(--mono); font-feature-settings: "calt" 0; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- top ribbon (branded header) ---------- */
.top-ribbon {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 76px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 24px;
    z-index: 100;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.06), 0 4px 18px rgba(6, 182, 212, 0.20);
}

.ribbon-brand {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
    line-height: 1.15;
}

.ribbon-name {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.018em;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ribbon-tag {
    font-size: 0.78rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.88);
    letter-spacing: 0.005em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ribbon-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.005em;
    color: rgba(255, 255, 255, 0.92);
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.36);
    background: rgba(255, 255, 255, 0.10);
    white-space: nowrap;
    flex-shrink: 0;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}

.ribbon-back:hover {
    background: rgba(255, 255, 255, 0.20);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
}

.ribbon-back:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: 2px;
}

.ribbon-back svg {
    flex-shrink: 0;
    transition: transform 0.15s;
}

.ribbon-back:hover svg {
    transform: translateX(-2px);
}

@media (max-width: 560px) {
    body { padding-top: 92px; }
    .top-ribbon { padding: 0 16px; gap: 12px; }
    .ribbon-name { font-size: 1.2rem; }
    .ribbon-tag { font-size: 0.72rem; }
    .ribbon-back span { display: none; }
    .ribbon-back { padding: 7px 9px; }
}

/* ---------- main layout ---------- */
.main-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 32px;
    align-items: start;
    margin-bottom: 64px;
}
@media (max-width: 880px) {
    .main-content { grid-template-columns: 1fr; }
}

/* ---------- sidebar ---------- */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: sticky;
    top: 24px;
}
@media (max-width: 880px) {
    .sidebar { position: static; }
}
.privacy-alert {
    padding: 12px 14px;
    background: #EFF6FF;
    border: 1px solid #BFDBFE;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: #1E3A8A;
    line-height: 1.4;
}
.privacy-alert strong {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
    font-size: 0.9rem;
}
.sidebar-block {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
}
.sidebar-heading {
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin: 0 0 12px;
}
.sidebar-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0 0 8px;
    line-height: 1.5;
}
.sidebar-text:last-child { margin-bottom: 0; }
.examples-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.example-link {
    display: flex;
    flex-direction: column;
    gap: 2px;
    width: 100%;
    text-align: left;
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    cursor: pointer;
    color: var(--text-main);
    font: inherit;
    transition: border-color 0.15s, background 0.15s;
}
.example-link:hover {
    border-color: var(--primary);
    background: var(--primary-soft);
}
.example-name { font-weight: 600; font-size: 0.88rem; }
.example-url { font-size: 0.75rem; color: var(--text-muted); word-break: break-all; }
.example-desc { font-size: 0.78rem; color: var(--text-muted); margin: 4px 0 0; line-height: 1.4; }

/* ---------- content area ---------- */
.content-area { min-width: 0; }

/* ---------- form ---------- */
.connect-form {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 24px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}
.field { display: block; margin-bottom: 14px; }
.field-label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 5px;
}
.field-hint { font-weight: 400; color: var(--text-muted); }
.field input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 0.92rem;
    font-family: var(--mono);
    color: var(--text-main);
    background: white;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.18);
}
.connect-row { display: flex; gap: 12px; align-items: center; }
.connect-row .btn-primary { flex: 1; }
.advanced-panel { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }
.advanced-panel .field { margin-bottom: 0; }
.connect-hint {
    margin: 14px 0 0;
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--bg-subtle);
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
}

/* ---------- buttons ---------- */
.btn {
    display: inline-block;
    border: none;
    border-radius: var(--radius-sm);
    padding: 10px 18px;
    font-size: 0.92rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.18s ease;
}
.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-sm);
}
.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}
.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}
.btn-secondary {
    background: var(--bg-surface);
    color: var(--text-main);
    border: 1px solid var(--border);
}
.btn-secondary:hover:not(:disabled) {
    background: var(--primary-soft);
    border-color: var(--primary);
    color: var(--primary-dark);
}
.btn-link {
    background: transparent;
    border: none;
    color: var(--primary-dark);
    font: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 6px;
}
.btn-link:hover { background: var(--primary-soft); text-decoration: underline; }

/* ---------- error / loading ---------- */
.error-box {
    background: var(--danger-bg);
    border: 1px solid var(--danger);
    border-left: 4px solid var(--danger);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    margin-bottom: 24px;
    color: var(--danger-text);
}
.error-heading { display: block; font-size: 1rem; margin-bottom: 6px; }
.error-message { margin: 0 0 8px; font-size: 0.9rem; }
.error-hint { margin: 0; font-size: 0.85rem; line-height: 1.5; }
.error-hint code {
    background: rgba(255, 255, 255, 0.6);
    padding: 1px 5px;
    border-radius: 4px;
    font-family: var(--mono);
    font-size: 0.85em;
}

.loading-indicator {
    display: none;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 0.92rem;
    margin-bottom: 24px;
}
body[data-status="loading"] .loading-indicator { display: flex; }
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- connected view ---------- */
.connected-view { display: none; }
body[data-status="connected"] .connected-view { display: block; }

.header-card-section { margin-bottom: 24px; }
.header-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-top: 4px solid var(--primary);
    border-radius: var(--radius);
    padding: 22px 24px;
    box-shadow: var(--shadow-sm);
}
.header-card-title {
    margin: 0 0 4px;
    font-size: 1.6rem;
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
}
.header-card-version {
    font-family: var(--mono);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
}
.header-card-meta {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 6px 16px;
    margin: 16px 0 0;
    font-size: 0.85rem;
}
.header-card-meta dt {
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    padding-top: 2px;
}
.header-card-meta dd {
    margin: 0;
    color: var(--text-main);
    word-break: break-all;
}
.header-card-instructions {
    margin-top: 18px;
    border-top: 1px solid var(--border);
    padding-top: 14px;
}
.header-card-instructions summary {
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--primary-dark);
}
.instructions-body {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--text-main);
    background: var(--bg-subtle);
    padding: 12px 14px;
    border-radius: var(--radius-sm);
    white-space: pre-wrap;
    line-height: 1.55;
}

.action-row { margin-bottom: 24px; }

/* ---------- gallery sections ---------- */
.gallery-section {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.section-title {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}
.section-count {
    background: var(--primary-soft);
    color: var(--primary-dark);
    border: 1px solid #a5f3fc;
    border-radius: 999px;
    padding: 1px 10px;
    font-size: 0.78rem;
    font-weight: 600;
    font-family: var(--mono);
}
.section-search {
    flex: 0 1 280px;
    padding: 7px 10px;
    border: 1px solid var(--border);
    border-radius: 7px;
    font-size: 0.85rem;
    font-family: inherit;
    color: var(--text-main);
    background: white;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.section-search:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.18);
}
.empty-filter {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding: 20px;
    text-align: center;
}

/* ---------- card grid ---------- */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 14px;
}
.item-card {
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    transition: border-color 0.15s;
    min-width: 0;
}
.item-card:hover { border-color: var(--border-strong); }
.item-name {
    margin: 0 0 6px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    word-break: break-all;
}
.item-uri {
    margin: 0 0 8px;
    font-size: 0.82rem;
    color: var(--text-muted);
    word-break: break-all;
}
.uri-placeholder {
    color: var(--primary-dark);
    background: var(--primary-soft);
    padding: 0 3px;
    border-radius: 3px;
}
.item-desc {
    margin: 8px 0;
    font-size: 0.88rem;
    color: var(--text-main);
    line-height: 1.5;
}

/* ---------- chips / annotations ---------- */
.annotation-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 6px 0 8px;
}
.chip {
    display: inline-block;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 1px 8px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 500;
    font-family: var(--mono);
}
.chip-info    { background: var(--info-bg);    border-color: #BFDBFE; color: var(--info-text); }
.chip-warn    { background: var(--warn-bg);    border-color: #FCD34D; color: var(--warn-text); }
.chip-danger  { background: var(--danger-bg); border-color: #FCA5A5; color: var(--danger-text); }
.chip-neutral { background: var(--bg-subtle); }
.chip-enum    { background: var(--primary-soft); border-color: #a5f3fc; color: var(--primary-dark); }
.chip-default { background: var(--bg-subtle); }

/* ---------- signature + schema ---------- */
.signature {
    margin: 8px 0;
    padding: 10px 12px;
    background: #0f172a;
    color: #e0f2fe;
    border-radius: var(--radius-sm);
    font-family: var(--mono);
    font-size: 0.82rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-x: auto;
}
.schema-details {
    margin-top: 8px;
    border-top: 1px solid var(--border);
    padding-top: 10px;
}
.schema-details summary {
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--primary-dark);
}
.schema-details summary:hover { color: var(--primary); }
.schema-tree { margin-top: 10px; }
.schema-toolbar { margin-bottom: 8px; }
.schema-toolbar .btn-link { padding: 2px 0; font-size: 0.78rem; }
.schema-props { list-style: none; padding: 0; margin: 0; }
.schema-props-nested {
    margin-top: 6px;
    padding-left: 14px;
    border-left: 2px solid var(--border);
}
.schema-prop { padding: 6px 0; }
.schema-prop + .schema-prop { border-top: 1px dashed var(--border); }
.schema-prop-head {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
}
.schema-name { font-family: var(--mono); font-weight: 600; color: var(--text-main); font-size: 0.85rem; }
.schema-type { font-family: var(--mono); color: var(--primary-dark); font-size: 0.78rem; }
.schema-required { color: var(--danger); font-weight: 700; }
.schema-desc {
    margin: 4px 0 0;
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.5;
}
.schema-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-top: 6px;
}
.schema-array-label { font-size: 0.78rem; color: var(--text-muted); padding: 4px 0; }
.schema-raw {
    margin: 0;
    padding: 12px;
    background: var(--bg-subtle);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--text-main);
    overflow-x: auto;
    white-space: pre;
    line-height: 1.5;
}

/* ---------- prompt args table ---------- */
.prompt-args {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
    margin-top: 8px;
}
.prompt-args th, .prompt-args td {
    text-align: left;
    padding: 6px 8px;
    border-bottom: 1px solid var(--border);
    vertical-align: top;
}
.prompt-args th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ---------- footer ---------- */
.page-footer {
    background: var(--bg-subtle);
    border-top: 1px solid var(--border);
    padding: 24px 0 36px;
    margin-top: 48px;
    font-size: 0.82rem;
    color: var(--text-muted);
}
.footer-line { margin: 0 0 12px; font-family: var(--mono); }
.footer-raw summary {
    cursor: pointer;
    font-weight: 500;
    color: var(--primary-dark);
    font-size: 0.82rem;
}
.footer-raw .schema-raw { margin-top: 10px; max-height: 360px; overflow: auto; }
.footer-credits { margin: 14px 0 0; }
.footer-credits a { margin-left: 10px; }