/*
 * rs-grid theme — base layout
 *
 * Shared reset and app shell styles used by all examples.
 * Theme-specific overrides live in their own files (light.css, dark.css, …).
 *
 * Supported color formats : #rgb  #rrggbb  #rrggbbaa  rgb(r,g,b)  rgba(r,g,b,a)
 * Supported size  formats : 13    13px
 */

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

html,
body {
  height: 100%;
  background: #f1f2f4;
  font-family: system-ui, sans-serif;
  transition: background 0.2s;
}

/* ── app layout ─────────────────────────────────────────────────────────────── */

.app-layout {
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 15px;
}

/* ── page header ────────────────────────────────────────────────────────────── */

.app-page-header {
  flex-shrink: 0;
  margin-bottom: 15px;
}

.app-title {
  font:
    700 22px/1.2 system-ui,
    sans-serif;
  color: #181d1f;
  margin-bottom: 8px;
  transition: color 0.2s;
}

.app-subtitle {
  font:
    400 14px/1.5 system-ui,
    sans-serif;
  color: #6b7280;
  margin-bottom: 18px;
  transition: color 0.2s;
}

.app-highlight {
  color: #2196f3;
  font-weight: 600;
}

.app-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.app-control {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 7px 12px;
  transition:
    background 0.2s,
    border-color 0.2s;
}

.app-control-label {
  font-size: 13px;
  font-weight: 600;
  color: #4b5563;
  white-space: nowrap;
  transition: color 0.2s;
}

.app-control-select {
  background: #ffffff;
  border: 1px solid #d1d5db;
  color: #111827;
  font:
    500 13px/1 system-ui,
    sans-serif;
  padding: 5px 30px 5px 10px;
  border-radius: 6px;
  cursor: pointer;
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%236b7280'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 9px center;
  min-width: 120px;
  transition:
    background-color 0.2s,
    border-color 0.2s,
    color 0.2s;
}

.app-control-select:hover {
  border-color: #9ca3af;
}

.app-control-select:focus {
  border-color: #2196f3;
  box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.15);
}

.app-control-button {
  background: #ffffff;
  border: 1px solid #d1d5db;
  color: #111827;
  font:
    500 13px/1 system-ui,
    sans-serif;
  padding: 5px 14px;
  border-radius: 6px;
  cursor: pointer;
  outline: none;
  transition:
    background-color 0.2s,
    border-color 0.2s,
    color 0.2s;
}

.app-control-button:hover {
  border-color: #9ca3af;
  background: #f9fafb;
}

/* ── toggle switch ──────────────────────────────────────────────────────────── */

.app-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.app-switch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.app-switch-track {
  display: block;
  width: 36px;
  height: 20px;
  background: #d1d5db;
  border-radius: 10px;
  transition: background 0.2s;
  flex-shrink: 0;
}

.app-switch-track::after {
  content: '';
  display: block;
  width: 14px;
  height: 14px;
  background: #ffffff;
  border-radius: 50%;
  margin: 3px;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.app-switch input:checked + .app-switch-track {
  background: #2196f3;
}

.app-switch input:checked + .app-switch-track::after {
  transform: translateX(16px);
}

/* ── validation error ───────────────────────────────────────────────────────── */

.app-validation-error {
  flex-shrink: 0;
  margin-bottom: 10px;
  padding: 8px 12px;
  background: #fff5f5;
  border: 1px solid #fca5a5;
  border-radius: 6px;
  font-size: 13px;
  color: #b91c1c;
}

/* ── body ───────────────────────────────────────────────────────────────────── */

.app-body {
  flex: 1;
  min-height: 0;
}

.app-grid-wrapper {
  height: 100%;
  background: #ffffff;
  border-radius: 8px;
  border: 1px solid #e2e4ea;
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.06),
    0 4px 12px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}