/* Reticle — base styles & design tokens
 * Hand-tuned dark theme. No Tailwind: we want precise control over the
 * premium aesthetic, and avoid a build pipeline.
 */

:root,
:root[data-theme="dark"] {
  /* Surfaces */
  --bg-0: #0b0d12;            /* app shell背景 */
  --bg-1: #11141b;            /* panels */
  --bg-2: #161a23;            /* elevated cards */
  --bg-3: #1d222d;            /* hover / inputs */
  --bg-elev: #1a1f2b;         /* popovers */

  /* Strokes */
  --stroke-1: #232936;
  --stroke-2: #2d3447;
  --stroke-strong: #3a4357;

  /* Text */
  --text-1: #e6e9f0;          /* primary */
  --text-2: #aab2c5;          /* secondary */
  --text-3: #6b7589;          /* muted */
  --text-faint: #4a5366;

  /* Accents */
  --accent: #5b8cff;          /* primary blue — selection, focus */
  --accent-soft: rgba(91, 140, 255, 0.14);
  --accent-strong: #7aa1ff;

  /* Status (used by health pills) */
  --ok: #2ec27e;
  --ok-soft: rgba(46, 194, 126, 0.16);
  --warn: #f5c144;
  --warn-soft: rgba(245, 193, 68, 0.16);
  --err: #e5484d;
  --err-soft: rgba(229, 72, 77, 0.16);
  --unknown: #6b7589;
  --unknown-soft: rgba(107, 117, 137, 0.16);

  /* Shape */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-pill: 999px;

  /* Elevation */
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-2: 0 4px 14px rgba(0, 0, 0, 0.45);
  --shadow-3: 0 12px 32px rgba(0, 0, 0, 0.55);
  --shadow-focus: 0 0 0 2px var(--accent-soft);

  /* Motion */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --dur-fast: 90ms;
  --dur: 160ms;
  --dur-slow: 280ms;

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Fira Code", ui-monospace,
    Menlo, Consolas, monospace;

  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-1);
  background-color: var(--bg-0);

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;

  /* Disallow native text selection except where we opt in (inputs, cards) */
  user-select: none;
  -webkit-user-select: none;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
  width: 100%;
  overflow: hidden;       /* the canvas owns scrolling */
}

#app { /* grid container; direct children must not push it past viewport */
  min-height: 0;
  min-width: 0;
}
.app-shell > * {
  min-height: 0;
  min-width: 0;
}

body {
  overscroll-behavior: none;
  touch-action: none;     /* we handle all gestures on the canvas */
}

button {
  font: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  user-select: none;
}
button:focus-visible {
  box-shadow: var(--shadow-focus);
  outline: none;
}
button:disabled {
  opacity: 0.45;
  cursor: default;
}

input,
textarea {
  font: inherit;
  color: var(--text-1);
  background: var(--bg-2);
  border: 1px solid var(--stroke-1);
  border-radius: var(--radius-sm);
  padding: 0.4em 0.6em;
  user-select: text;
}
input:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: var(--shadow-focus);
}

::selection {
  background: var(--accent-soft);
  color: var(--text-1);
}

/* Scrollbars (subtle) */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-thumb {
  background: var(--stroke-2);
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--stroke-strong);
  background-clip: padding-box;
  border: 2px solid transparent;
}

/* App shell layout ----------------------------------------------- */

.app-shell {
  display: grid;
  grid-template-areas:
    "toolbar      toolbar      toolbar"
    "palette      canvas       rightpanel"
    "statusbar    statusbar    statusbar";
  grid-template-columns: auto 1fr var(--panel-w, 340px);
  grid-template-rows: 44px 1fr 26px;
  height: 100vh;
  width: 100vw;
  min-height: 100vh;
  gap: 0;
  overflow: hidden;
}
.app-shell.is-panel-fullscreen {
  grid-template-areas:
    "rightpanel"
    "rightpanel"
    "rightpanel";
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
}
.app-shell.is-panel-fullscreen > .toolbar,
.app-shell.is-panel-fullscreen > #palette,
.app-shell.is-panel-fullscreen > .statusbar {
  display: none;
}
.app-shell.is-panel-hidden {
  grid-template-columns: auto 1fr 0px;
}
/* When palette is collapsed, its grid column collapses to 0 */
#palette.palette-collapsed {
  width: 0 !important;
  min-width: 0 !important;
  border: none !important;
  overflow: hidden;
}

.toolbar {
  grid-area: toolbar;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 12px;
  background: var(--bg-1);
  border-bottom: 1px solid var(--stroke-1);
  z-index: 30;
}

.canvas-host {
  grid-area: canvas;
  position: relative;
  overflow: hidden;
  background: var(--bg-0);
  min-height: 0;
  min-width: 0;
  touch-action: none;
}

/* Right panel — holds the inspector + terminal with tabs.
   Resizable via a drag handle on its left edge. */
.right-panel {
  grid-area: rightpanel;
  display: flex;
  flex-direction: column;
  background: var(--bg-1);
  border-left: 1px solid var(--stroke-1);
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  position: relative;
}
.right-panel[hidden] { display: none; }

/* Drag resize handle on the left edge of the right panel */
.panel-resize-handle {
  position: absolute;
  left: -5px;
  top: 0;
  bottom: 0;
  width: 10px; /* generous grab target; the visual line is drawn inside */
  cursor: ew-resize;
  z-index: 10;
  touch-action: none;
}
.panel-resize-handle::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: transparent;
  transition: background var(--dur) var(--ease);
}
.panel-resize-handle:hover::after { background: var(--accent); opacity: 0.6; }
/* While dragging: no text selection, no iframe/terminal stealing events,
   keep the col-resize cursor everywhere. */
.is-panel-resizing, .is-panel-resizing * {
  user-select: none !important;
  -webkit-user-select: none !important;
  cursor: ew-resize !important;
}
.is-panel-resizing .panel-resize-handle::after { background: var(--accent); opacity: 0.9; }

.statusbar {
  grid-area: statusbar;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  background: var(--bg-1);
  border-top: 1px solid var(--stroke-1);
  font-size: 11px;
  color: var(--text-3);
  z-index: 30;
  white-space: nowrap;
  overflow: hidden;
}

/* Make the inspector + terminal collapse gracefully when empty
   so the canvas can take the whole right side. */
.app-shell.is-inspector-hidden {
  grid-template-columns: auto 1fr 0fr;
}
.app-shell.is-terminal-hidden {
  --term-h: 0fr;
}
/* ---- Viewer role (daemon read-only) — phase 3b lockout ----
 * The store refuses topology mutations and the daemon rejects writes;
 * these rules remove the edit affordances so the read-only canvas looks
 * intentional, not broken. Pan/zoom/select/inspect/export stay live. */
.app-shell.is-viewer #palette,
.app-shell.is-viewer #palette-expand-slot { display: none; }
.app-shell.is-viewer .node-ports,
.app-shell.is-viewer .node-resize-handles,
.app-shell.is-viewer .group-resize-handle { display: none !important; }
/* inspector: fields become a fact sheet — no adding, deleting, running */
.app-shell.is-viewer .inspector-content .add-btn,
.app-shell.is-viewer .inspector-content .insp-add-choices,
.app-shell.is-viewer .inspector-content .insp-icon-btn,
.app-shell.is-viewer .inspector-content .del-icon-btn { display: none !important; }
.app-shell.is-viewer .inspector-content input,
.app-shell.is-viewer .inspector-content select,
.app-shell.is-viewer .inspector-content textarea,
.app-shell.is-viewer .inspector-content [contenteditable] {
  pointer-events: none;
  opacity: 0.8;
}
.statusbar .sb-role { color: var(--warn); font-weight: 600; }
/* viewer: header buttons — Check (read-only probe) stays, the rest go */
.app-shell.is-viewer .inspector-actions .shell-btn,
.app-shell.is-viewer .inspector-actions .edit-btn,
.app-shell.is-viewer .inspector-actions .del-btn { display: none !important; }

/* ---- Access gate (daemon refused the connection) ---- */
.access-gate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-0);
}
.gate-card {
  width: min(400px, 88vw);
  padding: 34px 34px 28px;
  background: var(--bg-1);
  border: 1px solid var(--stroke-1);
  border-radius: 12px;
  text-align: center;
}
.gate-mark {
  width: 40px; height: 40px;
  margin: 0 auto 16px;
  border-radius: 11px;
  background: radial-gradient(circle at 30% 30%, var(--accent), var(--accent-strong));
  position: relative;
}
.gate-mark::after {
  content: "";
  position: absolute;
  inset: 11px;
  border: 2.5px solid rgba(255, 255, 255, 0.9);
  border-radius: 50%;
}
.gate-card h1 { font: 700 19px var(--font-sans); margin: 0 0 10px; color: var(--text-0); }
.gate-reason { color: var(--text-2); font-size: 13px; margin: 0 0 6px; }
.gate-hint { color: var(--text-3); font-size: 12px; margin: 0 0 18px; }
.gate-row { display: flex; gap: 8px; }
.gate-input {
  flex: 1;
  height: 34px;
  padding: 0 12px;
  background: var(--bg-2);
  border: 1px solid var(--stroke-1);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  font: 13px var(--font-mono);
}
.gate-input:focus { outline: none; border-color: var(--accent); }
.gate-btn {
  height: 34px;
  padding: 0 16px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  font: 600 13px var(--font-sans);
  cursor: pointer;
}
.gate-btn:hover { background: var(--accent-strong); }
.gate-clear {
  margin-top: 14px;
  background: none;
  border: none;
  color: var(--text-3);
  font: 11px var(--font-sans);
  cursor: pointer;
  text-decoration: underline;
}
.gate-clear:hover { color: var(--text-1); }

/* role badge variants */
.statusbar .sb-role.is-editor { color: var(--ok, #2ec27e); }
.statusbar .sb-role.is-disconnected { color: var(--err); font-weight: 700; }