* { box-sizing: border-box; }
html, body, #app { width: 100%; height: 100%; margin: 0; }
body {
  overflow: hidden;
  background: var(--workspace-bg, var(--bg));
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}
button, input, textarea, select { font: inherit; }
button { color: inherit; }
.spacer { flex: 1; }

.screen { min-height: 100%; width: 100%; }
.login-screen {
  display: grid;
  grid-template-columns: minmax(320px, 1.08fr) minmax(400px, .92fr);
  background:
    radial-gradient(circle at 12% 18%, rgba(124, 58, 237, .2), transparent 34%),
    radial-gradient(circle at 62% 82%, rgba(79, 156, 249, .1), transparent 30%), var(--bg);
}
.login-visual { position: relative; display: flex; flex-direction: column; justify-content: space-between; padding: 52px 64px; overflow: hidden; }
.login-panel { display: grid; place-items: center; border-left: 1px solid var(--border); background: rgba(17, 17, 26, .48); backdrop-filter: blur(20px); }
[data-theme="light"] .login-panel { background: rgba(255, 255, 255, .58); }
.shell { display: grid; grid-template-rows: 68px 1fr; height: 100%; }
.topbar { display: flex; align-items: center; gap: 18px; padding: 0 26px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 92%, transparent); z-index: 20; }
.topbar .spacer { flex: 1; }
.dashboard { height: 100%; overflow: auto; padding: 42px clamp(24px, 5vw, 72px) 70px; background: var(--workspace-bg, var(--bg)); transition: background-color .2s ease; }
.dashboard-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 34px; }
.dashboard-head-actions { display: flex; align-items: center; gap: 9px; }
.map-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); gap: 20px; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.admin-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 28px; }
.editor { height: 100%; display: grid; grid-template-rows: 62px 1fr 28px; }
.editor-toolbar { display: flex; align-items: center; gap: 10px; padding: 0 14px; background: var(--surface); border-bottom: 1px solid var(--border); z-index: 30; }
.editor-main { --left-panel-width: 260px; --left-panel-size: var(--left-panel-width); --right-panel-size: 280px; min-height: 0; display: grid; grid-template-columns: var(--left-panel-size) 7px minmax(0, 1fr) var(--right-panel-size); }
.editor-main.left-panel-collapsed { --left-panel-size: 44px; }
.editor-main.right-panel-collapsed { --right-panel-size: 44px; }
.side-panel { position: relative; min-width: 0; background: var(--surface); border-right: 1px solid var(--border); overflow: hidden; }
.side-panel.right { border-right: 0; border-left: 1px solid var(--border); }
.side-panel-content { height: 100%; overflow: auto; padding: 18px 14px; }
.side-panel-content > .eyebrow:first-child, .side-section-heading:first-child { padding-right: 38px; }
.panel-collapse-button { position: absolute; z-index: 5; top: 12px; right: 10px; width: 30px; height: 30px; padding: 0; border-color: var(--border-strong); background: var(--surface-2); box-shadow: 0 5px 14px rgba(0,0,0,.18); }
.panel-collapse-button svg { transition: transform .18s ease; }
.properties-collapse-button svg { transform: rotate(180deg); }
.left-panel-collapsed .outline-collapse-button svg { transform: rotate(180deg); }
.right-panel-collapsed .properties-collapse-button svg { transform: rotate(0deg); }
.left-panel-collapsed .outline-side-panel .side-panel-content, .right-panel-collapsed .properties-side-panel .side-panel-content { display: none; }
.left-panel-collapsed .outline-side-panel .panel-collapse-button, .right-panel-collapsed .properties-side-panel .panel-collapse-button { left: 7px; right: auto; }
.side-panel-resizer { position: relative; z-index: 6; cursor: col-resize; background: var(--surface); touch-action: none; outline: none; }
.side-panel-resizer::before { content: ""; position: absolute; top: 0; bottom: 0; left: 3px; width: 1px; background: var(--border-strong); transition: width .15s ease, left .15s ease, background .15s ease; }
.side-panel-resizer:hover::before, .side-panel-resizer:focus-visible::before, .side-panel-resizer.dragging::before { left: 2px; width: 3px; background: var(--primary); }
body.resizing-side-panel, body.resizing-side-panel * { cursor: col-resize !important; user-select: none !important; }
.canvas-wrap { min-width: 0; min-height: 0; position: relative; }
.center-view { min-width: 0; min-height: 0; position: relative; overflow: hidden; }
.center-view > .canvas-wrap { position: absolute; inset: 0; width: 100%; height: 100%; }
.statusbar { display: flex; align-items: center; gap: 20px; padding: 0 14px; background: var(--surface); color: var(--muted); border-top: 1px solid var(--border); font-size: 12px; }

@media (max-width: 900px) {
  .login-screen { grid-template-columns: 1fr; }
  .login-visual { display: none; }
  .login-panel { border: 0; }
  .editor-main { grid-template-columns: minmax(0, 1fr); }
  .side-panel, .side-panel-resizer { display: none; }
  .admin-grid { grid-template-columns: repeat(2, 1fr); }
  .dashboard-head { align-items: flex-start; flex-direction: column; }
  .module-form-grid { grid-template-columns: 1fr; }
  .module-form-wide { grid-column: auto; }
  .toolbar-label { display: none; }
}