:root {
  --bg: #0b0f14;
  --panel: #121822;
  --panel-2: #161e2b;
  --text: #e6eefc;
  --muted: #99a7bd;
  --accent: #6aa2ff;
  --accent-2: #7cf6c3;
  --danger: #ff6b6b;
  --warn: #ffc061;
  --ok: #7cf6c3;
  --tile: #121a26;
  --tile-hover: #1a2636;
  --border: #223044;
  --shadow: rgba(0,0,0,.4);
}

:root.light {
  --bg: #f6f8fc;
  --panel: #ffffff;
  --panel-2: #f2f5fb;
  --text: #1d2430;
  --muted: #5a6a84;
  --accent: #2f5bff;
  --accent-2: #0dbf8b;
  --danger: #d43d3d;
  --warn: #b9780d;
  --ok: #0dbf8b;
  --tile: #ffffff;
  --tile-hover: #f4f7fb;
  --border: #dde3f0;
  --shadow: rgba(0,0,0,.08);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 20% -10%, rgba(54,104,255,.12), transparent 50%), var(--bg);
  color: var(--text);
}

.app-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(180deg, var(--panel), rgba(0,0,0,0));
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
}
.brand { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.brand .logo { font-size: 20px; }
.brand h1 { font-size: 18px; margin: 0; letter-spacing: .2px; }
.actions { display: flex; align-items: center; gap: 14px; }
.actions .nav-link, .actions .gh, .actions button {
  color: var(--text); text-decoration: none; opacity: .85; cursor: pointer; border: 0; background: transparent;
}
.actions .nav-link:hover, .actions .gh:hover { opacity: 1; text-decoration: underline; }
.actions button { font-size: 16px; }
.gh { padding: 4px 8px; border-radius: 6px; background: var(--panel-2); border: 1px solid var(--border); }

main { padding: 18px; max-width: 1200px; margin: 0 auto; }
.view { display: none; }
.view.active { display: block; }

.hero { margin: 6px 0 16px; }
.hero h2 { margin: 0 0 6px; font-size: 22px; }
.hero p { margin: 0; color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}
.tile {
  background: linear-gradient(180deg, var(--tile), var(--panel-2));
  border: 1px solid var(--border);
  padding: 14px; border-radius: 12px; cursor: pointer;
  box-shadow: 0 8px 22px var(--shadow);
  transition: transform .12s ease, background .2s ease, border-color .2s ease;
}
.tile:hover { transform: translateY(-2px); background: var(--tile-hover); border-color: var(--accent); }
.tile .badge {
  display: inline-block; font-size: 11px; font-weight: 600; letter-spacing: .3px;
  padding: 2px 8px; border-radius: 999px; background: rgba(106,162,255,.15); color: var(--accent);
  border: 1px solid rgba(106,162,255,.35);
}
.tile h4 { margin: 8px 0 4px; font-size: 16px; }
.tile p { margin: 0; color: var(--muted); font-size: 13px; }

.workspace-bar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-2);
  margin-bottom: 12px;
}
.workspace-bar .spacer { flex: 1; }
#toolRoot {
  min-height: 320px;
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 12px;
  background: linear-gradient(180deg, rgba(106,162,255,.06), transparent 45%);
}

button, .btn {
  appearance: none; border: 1px solid var(--border); border-radius: 10px;
  padding: 8px 12px; background: var(--panel); color: var(--text);
  cursor: pointer; transition: background .2s ease, border-color .2s ease, transform .04s ease;
}
button:hover { background: var(--panel-2); border-color: var(--accent); }
button.primary { background: linear-gradient(180deg, #2a54ff, #1d2b7a); border-color: #2a54ff; }
button.ghost { background: transparent; }
button:active { transform: translateY(1px); }

label { display: block; color: var(--muted); font-size: 13px; margin-bottom: 6px; }
input, select, textarea {
  width: 100%; color: var(--text); background: var(--panel); border: 1px solid var(--border);
  padding: 10px 12px; border-radius: 10px; font: inherit; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(106,162,255,.18); }

.row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.row.end { justify-content: end; display: flex; gap: 10px; }

.kbd {
  display: inline-block; border: 1px solid var(--border); background: var(--panel);
  border-radius: 8px; padding: 4px 8px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

/* About */
.about-wrap { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 900px) { .about-wrap { grid-template-columns: 1fr 1fr; } }
.card {
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 8px 22px var(--shadow);
}
.card h2, .card h3 { margin-top: 0; }
.card p { color: var(--muted); }

.bullets { margin: 0; padding-left: 18px; }
.bullets li { margin: 6px 0; }

.request-form .row { margin-bottom: 10px; }
.request-form .status { margin-top: 10px; font-size: 13px; }
.request-form .status.ok { color: var(--ok); }
.request-form .status.warn { color: var(--warn); }

.requests-log summary { cursor: pointer; margin-top: 10px; }
.log {
  margin-top: 8px; padding: 10px; border-radius: 10px; border: 1px solid var(--border);
  background: #0d1420; color: #d9e6ff; max-height: 280px; overflow: auto;
}

/* Footer */
.app-footer {
  border-top: 1px solid var(--border);
  padding: 16px;
  color: var(--muted);
  text-align: center;
  margin-top: 18px;
}

/* -------- Output Enhancer Styles -------- */
.output-wrap {
  position: relative;
  margin-top: 10px;
  background: linear-gradient(180deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 8px 22px var(--shadow);
}

.output-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

.output-label {
  font-size: 12px;
  color: var(--muted);
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 8px;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
}
.copy-btn:hover { border-color: var(--accent); }
.copy-btn.copied { outline: 2px solid var(--accent-2); }

.output-textarea {
  width: 100%;
  min-height: 220px;
  resize: vertical;
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  font-size: 13px;
  line-height: 1.45;
}

.output-hidden { display: none !important; }

/* a11y helper for icon-only buttons */
.visually-hidden {
  position: absolute !important;
  height: 1px; width: 1px; overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
  white-space: nowrap; border: 0; padding: 0; margin: -1px;
}

/* Ensure SPA shell doesn't fight side rails (if you use the side-rail layout index.html) */
#app { max-width: unset; margin: 0; padding: 0; }