/* ─── Reset ────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: #1a1a2e;
  color: #fff;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

/* ─── Layout ──────────────────────────────────────────────────────────────── */
#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  padding: 10px;
  gap: 8px;
}

#header {
  text-align: center;
  font-size: 13px;
  color: #888;
  padding: 2px 0;
  flex-shrink: 0;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  opacity: 0.7;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

#ws-status {
  font-size: 10px;
  transition: color 0.3s;
}
#ws-status.ws-online  { color: #4ade80; }
#ws-status.ws-offline { color: #f87171; }

#fullscreen-btn {
  background: none;
  border: 1px solid #555;
  color: #888;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  padding: 2px 8px;
  line-height: 1.4;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
#fullscreen-btn:active { background: rgba(255,255,255,0.1); }

.button {
  position: relative;
  border: none;
  border-radius: 16px;
  background: #16213e;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px;
  transition: all 0.1s ease;
  box-shadow: 0 3px 12px rgba(0,0,0,0.4);
  line-height: 1.2;
  text-align: center;
  word-break: break-word;
  overflow: hidden;
  font-family: inherit;
}

.button .icon {
  font-size: 48px;
  margin-bottom: 6px;
  line-height: 1;
}

.button .label {
  font-size: 16px;
  opacity: 0.95;
  max-width: 100%;
}

/* Pressed state */
.button:active, .button.pressed {
  transform: scale(0.92);
  filter: brightness(1.3);
}

/* Color variants */
.button.color-blue   { background: #0f3460; }
.button.color-green  { background: #1b4332; }
.button.color-red    { background: #5c1a1a; }
.button.color-purple { background: #3b1f6e; }
.button.color-orange { background: #5c3a1a; }
.button.color-teal   { background: #1a4a4a; }
.button.color-pink   { background: #5c1a3a; }
.button.color-yellow { background: #5c4a1a; color: #ffe066; }
.button.color-white  { background: #2a2a3e; }
.button.color-dark   { background: #0d0d1a; }

/* Transparent (image only) */
.button.color-transparent { background: transparent; box-shadow: none; }
.button.color-transparent:active { filter: brightness(1.5); }

/* ─── Grid wrapper with side arrows ──────────────────────────────────────── */
#grid-wrapper {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
}

#grid {
  flex: 1;
  display: grid;
  gap: 10px;
  align-content: stretch;
}

.nav-arrow {
  position: absolute;
  top: 0; bottom: 0;
  width: 56px;
  border: none;
  background: rgba(255,255,255,0.05);
  color: rgba(255,255,255,0.35);
  font-size: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all 0.2s;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  padding: 0;
}
.nav-arrow:active { background: rgba(255,255,255,0.15); color: #fff; }
#nav-prev { left: 0; border-radius: 0 10px 10px 0; }
#nav-next { right: 0; border-radius: 10px 0 0 10px; }

/* ─── Navigation dots ─────────────────────────────────────────────────────── */
#nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  padding: 8px 0;
  flex-shrink: 0;
}

.nav-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #444;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.nav-dot:active {
  background: #666;
  transform: scale(0.9);
}

.nav-dot.active {
  background: #4a9eff;
  border-color: #6bb4ff;
  box-shadow: 0 0 10px #4a9eff;
  transform: scale(1.15);
}

/* ─── Page indicator text ────────────────────────────────────────────────── */
#page-indicator {
  text-align: center;
  font-size: 12px;
  color: #555;
  padding: 2px 0;
  flex-shrink: 0;
}

/* ─── Responsive ──────────────────────────────────────────────────────────── */
/* Ultrawide landscape (e.g. 1920×480) — the touchscreen */
@media (min-aspect-ratio: 3/1) {
  .button { padding: 10px 14px; }
  .button .icon { font-size: 48px; }
  .button .label { font-size: 16px; }
  #app { padding: 8px 12px; }
}

/* Small portrait (e.g. 1024×768) */
@media (max-aspect-ratio: 4/3) {
  .button { border-radius: 20px; }
  .button .icon { font-size: 56px; }
  .button .label { font-size: 20px; }
}

/* ─── Animations ──────────────────────────────────────────────────────────── */
@keyframes flash {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.button.executing {
  animation: flash 0.3s ease 2;
}

/* ─── Drag scroll (for pages with many rows) ──────────────────────────────── */
#grid.drag-scroll {
  overflow-y: auto;
  scroll-behavior: smooth;
  flex: 1;
}

#grid.drag-scroll::-webkit-scrollbar {
  width: 3px;
}
#grid.drag-scroll::-webkit-scrollbar-track {
  background: transparent;
}
#grid.drag-scroll::-webkit-scrollbar-thumb {
  background: #555;
  border-radius: 3px;
}

/* ─── Monitor dashboard ───────────────────────────────────────────────────── */
#monitor-dashboard {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 8px;
  height: 100%;
  padding: 4px;
}

.monitor-section {
  background: #16213e;
  border-radius: 12px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.monitor-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #888;
  margin-bottom: 6px;
  flex-shrink: 0;
}

.monitor-bar-bg {
  height: 20px;
  background: #0d1b2a;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
  margin-bottom: 4px;
}

.monitor-bar {
  height: 100%;
  border-radius: 10px;
  transition: width 0.6s ease;
}

.monitor-bar-cpu { background: linear-gradient(90deg, #4a9eff, #6bb4ff); }
.monitor-bar-mem { background: linear-gradient(90deg, #4ade80, #6ee7a0); }

.monitor-value {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
  flex-shrink: 0;
}

/* Per-core bars */
.monitor-cores {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
  justify-content: center;
  margin-top: 4px;
}

.core-bar-bg {
  height: 14px;
  background: #0d1b2a;
  border-radius: 7px;
  overflow: hidden;
  display: flex;
  align-items: center;
  position: relative;
}

.core-label {
  position: absolute;
  left: 6px;
  font-size: 8px;
  color: #aaa;
  z-index: 1;
  font-weight: 600;
}

.core-bar-fill {
  height: 100%;
  border-radius: 7px;
  background: linear-gradient(90deg, #4a9eff, #7bb8ff);
  transition: width 0.6s ease;
}

.core-pct {
  position: absolute;
  right: 6px;
  font-size: 8px;
  color: #ddd;
  z-index: 1;
}

/* System info section */
#monitor-sys {
  grid-column: 1 / 3;
}

.monitor-line {
  font-size: 13px;
  color: #bbb;
  padding: 3px 0;
  flex-shrink: 0;
}

/* Ultrawide tuning */
@media (min-aspect-ratio: 3/1) {
  #monitor-dashboard { gap: 6px; padding: 2px; }
  .monitor-section { padding: 6px 10px; border-radius: 8px; }
  .monitor-title { font-size: 10px; }
  .monitor-value { font-size: 16px; }
  .monitor-bar-bg { height: 16px; }
  .core-bar-bg { height: 12px; }
  .monitor-line { font-size: 11px; }
}