:root {
  --bg: #0e0a1b;
  --card: #181129;
  --text: #ebe6f8;
  --text-semi: hsl(259, 36%, 84%);
  --muted: hsl(261, 17%, 68%);
  --accent: #b56bff;
  --accent-pressed: #9952e8;
  --neutral-on :hsl(263, 30%, 70%);
  --neutral-off :hsl(258, 20%, 28%);
  --border: rgba(255,255,255,0.08);
  --border-soft: rgba(255,255,255,0.06);
  --menu: rgb(36, 29, 52);
  --elev-05: rgba(255,255,255,0.05);
  --elev-10: rgba(255,255,255,0.10);
  --hover: rgba(255,255,255,0.08);
  --transition: 0.25s ease;
  --transition-material: 0.45s cubic-bezier(0.25, 0.8, 0.25, 1)
}

.no-transition {
  transition: none !important;
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-weight: 400;
}

*:not(.material-symbols-rounded) {
  font-family: "Roboto", system-ui, sans-serif !important;
}

body {
  display: flex;
  justify-content: center;
  align-items: stretch;
  overflow: hidden;
}

#tab-randomizer {
  overflow: hidden;
  height: 100%;
}

/* ---------- App Layout ---------- */
.app {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-width: 480px;
  width: 100%;
  background: var(--card);
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}

/* ---------- Topbar ---------- */
.topbar {
  background: var(--elev-05);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.topbar-left{
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topbar-button-group{
  display: flex;
  gap: 0.5rem;
}

.topbar h1 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-btn {
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition), transform var(--transition);
  padding: 0.4rem;
  border-radius: 50%;
}

.topbar-btn:active {
  transform: scale(0.9);
}

#sortBtn {
  visibility: hidden;
}

#groupToggleBtn {
  visibility: hidden;
}

/* ---------- Sort Menu ---------- */
.sort-menu {
  pointer-events: auto;
  position: absolute;
  top: 60px;
  right: 10px;
  background: var(--menu);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
  display: flex;
  flex-direction: column;
  opacity: 1;
  transform: translateX(0%);
  transition: all var(--transition);
  z-index: 150;
}

.sort-menu.hidden {
  pointer-events: none;
  opacity: 0;
  transform: translateX(10%);
}

.sort-menu button {
  background: none;
  border: none;
  color: var(--text);
  text-align: left;
  padding: 15px 15px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition);
}

/* ---------- Sort Menu with Material Radio Buttons ---------- */
.sort-option {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 10px 14px;
  cursor: pointer;
  transition: background var(--transition);
}

.sort-option:hover {
  background: var(--border);
}

.sort-option input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  width: 20px;
  height: 20px;
  border: 2px solid var(--muted);
  border-radius: 50%;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  flex-shrink: 0;
  margin: 0.2rem
}

.sort-option input::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  transition: transform var(--transition);
}

.sort-option input:checked {
  border-color: var(--accent);
}

.sort-option input:checked::before {
  transform: translate(-50%, -50%) scale(1);
}

.sort-label {
  font-size: 0.95rem;
  color: var(--text);
}

/* ---------- Tabs ---------- */
.tab-content {
  flex: 1 1 auto;
  overflow-y: auto;
  display: none;
  scroll-behavior: smooth;
  position: relative;
}

.tab-content.active {
  display: flex;
  flex-direction: column;
}

/* ---------- Randomizer Tab ---------- */
.randomizer-content {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 1rem;
}

.move-display {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
  transition: opacity var(--transition);
  word-break: break-word;
  max-width: 90%;
  text-align: center;
}

/* Floating Action Button (icon-only) */
.fab-btn {
  position: absolute;
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 64px;
  background: var(--accent);
  border: none;
  border-radius: 50%;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  font-size: 2rem;
  transition: background var(--transition), transform var(--transition);
  z-index: 90;
}

.fab-btn:active {
  background: var(--accent-pressed);
}

/* ---------- Settings Tab ---------- */
.inner-content {
  flex: 1;
  padding: 1.5rem;
  padding-top: 0;
}

.group-moves {
  overflow: hidden;
  height: 0;
  opacity: 0;
  transition: height var(--transition-material), opacity var(--transition-material);
}

.group-moves.expanded {
  opacity: 1;
}

.move-group h3 {
  margin-bottom: 0;
  font-size: 1.1rem;
  font-weight: 500;
  padding-bottom: 0.5rem;
  letter-spacing: 0.2px;
}

/* Each row */
.move-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 8px;
  transition: background var(--transition);
  cursor: pointer;
  gap: 0.75rem;
}

.move-meta {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* the tiny semi-circle */
.semi-indicator {
  width: 0.6rem;
  height: 0.3rem;
  background: var(--muted);
  border-top-left-radius: 0.6rem;
  border-top-right-radius: 0.6rem;
  display: inline-block;
  opacity: 0.8;
}

/* Checkbox wrapper */
.checkbox-wrapper {
  position: relative;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.checkbox-wrapper input {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 100%;
  margin: 0;
  position: absolute;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}

.checkbox-custom {
  position: absolute;
  top: 0;
  left: 0;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 2px solid var(--muted);
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.checkbox-custom::after {
  content: "check";
  font-family: "Material Symbols Rounded";
  font-size: 18px;
  color: var(--text);
  opacity: 0;
  transform: scale(0.7);
  transition: all var(--transition);
}

/* Checked state */
.checkbox-wrapper input:checked + .checkbox-custom {
  background: var(--accent);
  border-color: var(--accent);
}

.checkbox-wrapper input:checked + .checkbox-custom::after {
  opacity: 1;
  transform: scale(1);
}

/* Text columns */
.move-name {
  flex: 1;
  font-size: 1rem;
  font-weight: 400;
  color: var(--text);
}

.move-date {
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
}

/* ----- Collapsible Groups ----- */
.group-header {
  margin-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
  transition: color var(--transition);
  color: var(--accent);
}

.group-header.collapsed {
  color: var(--muted);
}

.group-actions {
  display: flex;
  align-items: center;
}

.group-actions > * {
  padding: 0.2rem 0.4rem;
}

.toggle-group {
  font-size: 1.3rem;
  opacity: 0;
  cursor: pointer;
  transform: translateX(75%);
  transition: opacity var(--transition), transform var(--transition);
  color: var(--text-secondary);
}

.group-header:not(.collapsed) .toggle-group {
  opacity: 1;
  transform: translateX(0%);
}

.collapse-icon {
  font-size: 1.4rem;
  transition: transform var(--transition-material);
}

.move-group.collapsed .collapse-icon {
  transform: rotate(180deg);
  transition: transform var(-transition-material);
}

/* ----- Semi Mode Toggle (bottom bar, flush above navbar) ----- */
.semi-toggle-container {
  display: none;    
  padding: 0.8rem 1.5rem;
  background: rgba(255, 255, 255, 0.04);
  border-top: 1px solid var(--border);
  align-items: center;
  justify-content: space-between;
  opacity: 0;
  transform: translateY(100%);
  transition: all var(--transition-material);
}

.semi-toggle-container.visible {
  display: flex;
  transform: translateY(0);
  opacity: 1;
}

/* Label layout */
.semi-toggle-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  cursor: pointer;
}

.toggle-text {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text);
}

.semi-toggle-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2px;
  overflow: hidden;
  width: 70%;
}

.md3-segment {
  font-weight: 500;
  flex: 1;
  border: none;
  background: none;
  color: var(--text-semi);
  font-size: 0.9rem;
  padding: 0.6rem 0;
  background: var(--neutral-off);
  border-radius: 0.5rem;
  box-shadow: 0 1px 2px rgba(0,0,0,0.25);
  cursor: pointer;
  transition: all var(--transition);
}

.md3-segment:first-child {
  border-radius: 2rem 1rem 1rem 2rem;
}

.md3-segment:last-child {
  border-radius: 1rem 2rem 2rem 1rem;
}

/* selected */
.md3-segment.active {
  font-weight: 600;
  background: var(--neutral-on);
  color: var(--neutral-off);
  border-radius: 2rem;
}

/* ---------- Navbar ---------- */
.footer-wrapper {
  display: flex;
  flex-direction: column;
  z-index: 95;
}

.navbar {
  display: flex;
  justify-content: space-around;
  background: var(--elev-05);
  border-top: 1px solid var(--border);
  z-index: 100;
}

.nav-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--muted);
  text-align: center;
  font-size: 0.85rem;
  padding: 0.4rem 0;
  transition: color var(--transition);
  font-weight: 500;
}

.nav-label {
  margin: 0.1rem 0 0.5rem 0;
}

.nav-btn .material-symbols-rounded {
  display: block;
  font-size: 1.7rem;
  
}

.nav-btn.active {
  color: var(--accent);
  font-weight: 900;
}

/* ---------- Scrollbar ---------- */
.tab-content::-webkit-scrollbar {
  width: 6px;
}

.tab-content::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}

@media (min-width: 600px) {
  .app {
    margin-top: 40px;
  }
}

/* --- Spin animation for the randomize icon --- */
@keyframes spin-once {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.spin {
  animation: spin-once 0.5s ease;
}

/* --- Randomize button first-time highlight --- */
@keyframes pulse-once {
  0%, 100% {
    box-shadow: 0 0 0 0 var(--accent-pressed);
    transform: translateX(-50%);
  }
  50% {
    box-shadow: 0 0 12px 4px var(--accent-pressed);
    transform: translateX(-50%);
  }
}

/* highlight for the Settings tab */
.nav-btn.highlight {
  position: relative;
}

.nav-btn.highlight::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5rem;
  height: 5rem;
  transform: translate(-50%, -50%) scale(1);
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.3;
  animation: tabPulse 0.8s ease-out forwards;
  pointer-events: none;
}

@keyframes tabPulse {
  0% {
    opacity: 0.5;
    transform: translate(-50%, -50%) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.8);
  }
}

.fab-btn.first-time {
  animation: pulse-once 1.5s ease-in-out infinite alternate;
}

button, 
input[type="checkbox"], 
.icon-btn, 
.fab-btn {
  touch-action: manipulation;
}

/* 🔴 Notification dot */
.has-dot {
  position: relative;
}

.has-dot::after {
  content: "";
  position: absolute;
  top: 6px;
  right: 6px;
  width: 8px;
  height: 8px;
  background: hsl(0, 70%, 55%);
  border-radius: 50%;
  box-shadow: 0 0 4px rgba(0, 0, 0, 0.4);
}