:root {
  color-scheme: light;
  --bg: #eef3f9;
  --panel: #ffffff;
  --panel-2: #f8fbff;
  --text: #132238;
  --muted: #5f6f82;
  --border: #d7e0ea;
  --accent: #1d4ed8;
  --accent-2: #2563eb;
  --good: #047857;
  --bad: #b91c1c;
  --warn: #b45309;
  --shadow: 0 18px 46px rgba(19, 34, 56, 0.10);
  --radius: 12px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #09111e;
  --panel: #0f1724;
  --panel-2: #121c2c;
  --text: #e5edf7;
  --muted: #91a1b6;
  --border: #253349;
  --accent: #60a5fa;
  --accent-2: #3b82f6;
  --good: #34d399;
  --bad: #f87171;
  --warn: #fbbf24;
  --shadow: 0 20px 48px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.10), transparent 28rem),
    linear-gradient(180deg, color-mix(in srgb, var(--panel) 80%, var(--bg)) 0, var(--bg) 22rem, var(--bg) 100%);
}
a { color: inherit; }
.shell { max-width: 1180px; margin: 0 auto; padding: 24px; }
.shell.wide { max-width: 1440px; padding: 20px; }
.topbar { display: flex; justify-content: space-between; gap: 16px; align-items: center; margin-bottom: 26px; flex-wrap: wrap; }
.tool-topbar { align-items: start; margin-bottom: 16px; }
.tool-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.brand-link, .brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; font-weight: 800; }
.brand-link img, .brand img { width: 36px; height: 36px; border-radius: 9px; box-shadow: var(--shadow); flex: 0 0 auto; }
.brand-title h1, .tool-heading h1 { margin: 0; font-size: 26px; letter-spacing: 0; line-height: 1.15; }
.brand-title p, .tool-heading p { margin: 8px 0 0; color: var(--muted); font-size: 14px; line-height: 1.6; max-width: 72ch; }
.nav { display: flex; gap: 12px; align-items: center; color: var(--muted); font-size: 14px; flex-wrap: wrap; }
.theme-toggle, .pill, button, select, input[type="text"], input[type="search"], input[type="datetime-local"] { font: inherit; border-radius: 10px; border: 1px solid var(--border); background: var(--panel); color: var(--text); }
.theme-toggle, .pill { padding: 9px 13px; box-shadow: var(--shadow); }
.theme-toggle, button { cursor: pointer; transition: transform .14s ease, border-color .14s ease, background .14s ease; }
.theme-toggle:hover, button:hover { color: var(--accent); transform: translateY(-1px); }
.pill { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); text-decoration: none; }
.pill a { color: inherit; text-decoration: none; }
.pill a:hover { color: var(--accent); }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 28px; align-items: end; margin-bottom: 22px; }
h1.home-title { margin: 0; font-size: clamp(30px, 5vw, 52px); line-height: 1.08; letter-spacing: 0; }
.lead { margin: 14px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; max-width: 760px; }
.summary { border: 1px solid var(--border); border-radius: var(--radius); background: color-mix(in srgb, var(--panel) 86%, transparent); box-shadow: var(--shadow); padding: 18px; }
.summary .value { font-size: 36px; font-weight: 800; color: var(--accent); line-height: 1; }
.summary .label { margin-top: 8px; color: var(--muted); font-size: 14px; line-height: 1.6; }
.searchbar { display: flex; gap: 12px; margin: 22px 0 24px; align-items: center; }
.searchbar input { width: 100%; padding: 14px 16px; outline: none; box-shadow: var(--shadow); }
.searchbar input:focus { border-color: color-mix(in srgb, var(--accent) 58%, var(--border)); }
.section-title { display: flex; justify-content: space-between; gap: 14px; align-items: baseline; margin: 22px 0 12px; }
.section-title h2 { margin: 0; font-size: 18px; }
.section-title span { color: var(--muted); font-size: 13px; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.tool-card { display: flex; flex-direction: column; min-height: 174px; padding: 18px; border: 1px solid var(--border); border-radius: var(--radius); background: linear-gradient(180deg, var(--panel), var(--panel-2)); box-shadow: var(--shadow); text-decoration: none; color: inherit; transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease; }
.tool-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--accent) 44%, var(--border)); box-shadow: 0 22px 54px rgba(29, 78, 216, 0.13); }
.tool-card.disabled { opacity: .66; cursor: default; }
.tool-card.disabled:hover { transform: none; border-color: var(--border); box-shadow: var(--shadow); }
.tool-top { display: flex; justify-content: space-between; gap: 12px; align-items: center; }
.tool-icon { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; background: #e9f0ff; color: var(--accent); font-weight: 900; font-size: 18px; }
.tag { color: var(--good); background: color-mix(in srgb, var(--good) 10%, transparent); border: 1px solid color-mix(in srgb, var(--good) 26%, var(--border)); border-radius: 999px; padding: 5px 9px; font-size: 12px; }
.tag.pending { color: var(--warn); background: color-mix(in srgb, var(--warn) 10%, transparent); border-color: color-mix(in srgb, var(--warn) 24%, var(--border)); }
.tool-card h3 { margin: 16px 0 8px; font-size: 18px; }
.tool-card p { margin: 0; color: var(--muted); line-height: 1.65; font-size: 14px; }
.tool-meta { margin-top: auto; padding-top: 16px; color: var(--accent); font-size: 13px; font-weight: 700; }
.empty { display: none; border: 1px dashed var(--border); border-radius: var(--radius); padding: 24px; color: var(--muted); background: color-mix(in srgb, var(--panel) 72%, transparent); text-align: center; }
.site-footer { margin-top: 34px; border-top: 1px solid var(--border); padding: 16px 4px 2px; color: var(--muted); font-size: 13px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; }
.site-footer a { color: inherit; text-decoration: none; }
.site-footer a:hover { color: var(--accent); text-decoration: underline; }
.tool-layout { display: grid; grid-template-columns: 1.05fr 0.95fr 0.9fr; gap: 16px; align-items: stretch; }
.tool-layout.cols-2 { grid-template-columns: 1fr 1fr; }
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow); overflow: hidden; min-height: 76vh; display: flex; flex-direction: column; height: 100%; }
.panel h2 { margin: 0; padding: 14px 16px; border-bottom: 1px solid var(--border); font-size: 15px; background: linear-gradient(180deg, var(--panel), var(--panel-2)); flex: 0 0 auto; }
.toolbar, .subtoolbar { display: flex; flex-wrap: wrap; gap: 10px; padding: 14px 16px 0; align-items: center; }
.subtoolbar { padding-top: 10px; padding-bottom: 12px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--panel-2) 65%, transparent); }
.subtoolbar label { display: inline-flex; gap: 8px; align-items: center; color: var(--muted); font-size: 13px; }
.subtoolbar .hint { margin: 0; }
button, select { padding: 10px 12px; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.primary:hover { background: var(--accent-2); color: #fff; }
button.ghost { background: transparent; }
.editor, .viewer, .tree { flex: 1; min-height: 0; padding: 16px; overflow: auto; background: linear-gradient(180deg, var(--panel), var(--panel-2)); }
.editor { display: flex; }
.editor.compact { flex: 0 0 auto; }
.editor textarea { width: 100%; min-height: 46vh; border: 1px solid color-mix(in srgb, var(--border) 84%, transparent); border-radius: 12px; outline: 0; resize: none; font-family: var(--mono); font-size: 14px; line-height: 1.7; white-space: pre; tab-size: 2; color: var(--text); background: color-mix(in srgb, var(--panel) 78%, var(--panel-2)); padding: 14px 16px; box-shadow: inset 0 1px 2px rgba(19, 34, 56, 0.06); transition: border-color .14s ease, box-shadow .14s ease, background .14s ease; }
.editor textarea:focus { border-color: color-mix(in srgb, var(--accent) 62%, var(--border)); box-shadow: inset 0 1px 2px rgba(19, 34, 56, 0.06), 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent); }
.editor textarea::placeholder { color: color-mix(in srgb, var(--muted) 78%, transparent); }
.editor input[type="text"], .editor input[type="datetime-local"], .field-input {
  width: 100%; min-height: 0; padding: 12px 14px; outline: 0; font-family: var(--mono); font-size: 14px; line-height: 1.5;
  color: var(--text); background: color-mix(in srgb, var(--panel) 78%, var(--panel-2));
  border: 1px solid color-mix(in srgb, var(--border) 84%, transparent); border-radius: 12px;
  box-shadow: inset 0 1px 2px rgba(19, 34, 56, 0.06); transition: border-color .14s ease, box-shadow .14s ease, background .14s ease;
}
.editor input[type="text"]:focus, .editor input[type="datetime-local"]:focus, .field-input:focus {
  border-color: color-mix(in srgb, var(--accent) 62%, var(--border));
  box-shadow: inset 0 1px 2px rgba(19, 34, 56, 0.06), 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent);
}
.field-row { display: grid; gap: 10px; width: 100%; }
.field-row.two { grid-template-columns: 1fr 1fr; }
pre.viewer { margin: 0; font-family: var(--mono); font-size: 14px; line-height: 1.7; white-space: pre-wrap; word-break: break-word; }
.viewer.boxed { margin: 0 16px; border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; min-height: 12rem; }
.tree { font-family: var(--mono); font-size: 13px; line-height: 1.6; }
.tree details { border-left: 1px solid var(--border); margin-left: 10px; padding-left: 12px; }
.tree summary { cursor: pointer; list-style: none; margin-bottom: 4px; color: var(--text); }
.tree summary::-webkit-details-marker { display: none; }
.tree .value { color: var(--muted); margin-left: 6px; word-break: break-word; }
.tree .key { color: #7c3aed; }
[data-theme="dark"] .tree .key { color: #c084fc; }
.tree .string { color: #0f766e; }
[data-theme="dark"] .tree .string { color: #5eead4; }
.tree .number { color: #2563eb; }
.tree .bool { color: #b45309; }
.tree .null { color: #dc2626; }
.panel-footer { padding: 14px 16px 16px; border-top: 1px solid var(--border); font-size: 13px; color: var(--muted); display: grid; gap: 8px; flex: 0 0 auto; margin-top: auto; }
.statusline { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.status { display: inline-flex; gap: 8px; align-items: center; padding: 6px 10px; border-radius: 999px; border: 1px solid var(--border); background: color-mix(in srgb, var(--panel) 85%, transparent); }
.status.good { color: var(--good); }
.status.bad { color: var(--bad); }
.status.warn { color: var(--warn); }
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.stat { border: 1px solid var(--border); border-radius: 12px; background: color-mix(in srgb, var(--panel) 92%, transparent); padding: 10px 12px; }
.stat .label { color: var(--muted); font-size: 12px; }
.stat .value { margin-top: 4px; font-size: 15px; font-weight: 600; }
.hint { color: var(--muted); font-size: 12px; line-height: 1.5; }
.errorbox { margin-top: 10px; border: 1px solid color-mix(in srgb, var(--bad) 34%, var(--border)); background: color-mix(in srgb, var(--bad) 7%, var(--panel)); color: var(--bad); border-radius: 12px; padding: 10px 12px; white-space: pre-wrap; word-break: break-word; display: none; }
.errorbox.show { display: block; }
.placeholder { border: 1px dashed var(--border); border-radius: 14px; background: var(--panel); box-shadow: var(--shadow); padding: 28px; color: var(--muted); line-height: 1.8; }
@media (max-width: 1180px) { .tool-layout, .tool-layout.cols-2 { grid-template-columns: 1fr; } .panel { min-height: 50vh; } .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 980px) { .hero { grid-template-columns: 1fr; } .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .field-row.two { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .shell, .shell.wide { padding: 14px; } .topbar { margin-bottom: 12px; } .brand-title h1, .tool-heading h1 { font-size: 22px; } .grid { grid-template-columns: 1fr; } .summary { padding: 16px; } .nav, .tool-actions { width: 100%; } .stats { grid-template-columns: 1fr; } .toolbar, .subtoolbar { padding-inline: 12px; } .editor, .viewer, .tree { padding: 12px; } .viewer.boxed { margin-inline: 12px; } }