/* ui.css — buttons, panels, menus, lists, overlays, toasts. */

/* ---- buttons ---------------------------------------------------------- */

.btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.03));
  color: var(--text);
  font: 600 0.95rem/1.2 var(--font);
  min-height: var(--tap);
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.12s ease, background 0.2s ease, border-color 0.2s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
  width: 100%;
}

.btn:hover {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.05));
  border-color: rgba(var(--accent-rgb), 0.45);
}

.btn:active {
  transform: scale(0.975);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

.btn--primary {
  background: linear-gradient(180deg, rgba(var(--accent-rgb), 0.95), rgba(var(--accent-rgb), 0.62));
  border-color: rgba(var(--accent-rgb), 0.8);
  color: #041018;
  box-shadow: 0 8px 26px rgba(var(--accent-rgb), 0.28);
}

.btn--primary:hover {
  filter: brightness(1.08);
}

.btn--lg {
  min-height: 54px;
  font-size: 1rem;
}

.btn--xl {
  min-height: 64px;
  font-size: 1.1rem;
}

.btn--sm {
  min-height: 38px;
  font-size: 0.82rem;
  padding: 0.45rem 0.8rem;
}

.btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--text-dim);
}

.btn__sub {
  font-size: 0.72rem;
  font-weight: 500;
  opacity: 0.75;
}

.icon-btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  width: var(--tap);
  height: var(--tap);
  min-width: var(--tap);
  border-radius: 12px;
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.2s ease, transform 0.12s ease;
}

.icon-btn:hover {
  background: rgba(var(--accent-rgb), 0.18);
}

.icon-btn:active {
  transform: scale(0.94);
}

/* ---- main menu -------------------------------------------------------- */

.screen--menu {
  align-items: center;
  justify-content: center;
  overflow-y: auto;
}

.menu__inner {
  width: min(430px, 92vw);
  padding: 1.6rem 0 2.4rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.brand {
  margin: 0;
  font-size: clamp(2rem, 9vw, 3rem);
  letter-spacing: 0.2em;
  font-weight: 200;
  line-height: 1.05;
  text-align: center;
}

.brand span {
  color: var(--accent);
  font-weight: 700;
  text-shadow: 0 0 26px rgba(var(--accent-rgb), 0.55);
}

.brand__tag {
  margin: 0.4rem 0 0;
  text-align: center;
  color: var(--text-dim);
  letter-spacing: 0.32em;
  font-size: 0.68rem;
  text-transform: uppercase;
}

.menu__progress {
  display: flex;
  gap: 0.5rem;
}

.menu__progress .chip {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 12px;
  padding: 0.6rem 0.4rem;
  text-align: center;
}

.menu__progress b {
  display: block;
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
}

.menu__progress small {
  color: var(--text-dim);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.menu__nav {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.menu__row {
  display: flex;
  gap: 0.6rem;
}

.menu__foot {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.7rem;
  min-height: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
}

.menu__home {
  color: var(--text-dim);
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.menu__home:hover {
  color: var(--text);
  border-color: rgba(var(--accent-rgb), 0.5);
}

/* ---- world / level lists --------------------------------------------- */

.world-card {
  display: block;
  width: 100%;
  text-align: left;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  border-radius: var(--radius);
  padding: 0.95rem 1.05rem;
  margin-bottom: 0.7rem;
  cursor: pointer;
  color: inherit;
  font: inherit;
  transition: transform 0.14s ease, border-color 0.2s ease;
  position: relative;
  overflow: hidden;
}

.world-card::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--world-accent, var(--accent));
}

.world-card:hover {
  transform: translateY(-2px);
  border-color: rgba(var(--accent-rgb), 0.4);
}

.world-card[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.world-card__top {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.world-card__num {
  color: var(--world-accent, var(--accent));
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 700;
}

.world-card h3 {
  margin: 0;
  font-size: 1.08rem;
  flex: 1;
}

.world-card p {
  margin: 0.3rem 0 0.6rem;
  color: var(--text-dim);
  font-size: 0.82rem;
  line-height: 1.4;
}

.progress-line {
  height: 5px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.progress-line i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--world-accent, var(--accent)), rgba(255, 255, 255, 0.8));
  border-radius: 4px;
  transition: width 0.4s ease;
}

.world-card__meta {
  display: flex;
  justify-content: space-between;
  margin-top: 0.4rem;
  font-size: 0.72rem;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

.level-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
  gap: 0.6rem;
}

.level-cell {
  aspect-ratio: 1;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  font: 600 1.05rem var(--font);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.2rem;
  cursor: pointer;
  transition: transform 0.14s ease, border-color 0.2s ease, background 0.2s ease;
}

.level-cell:hover:not([disabled]) {
  transform: translateY(-2px) scale(1.03);
  border-color: rgba(var(--accent-rgb), 0.5);
}

.level-cell[disabled] {
  opacity: 0.32;
  cursor: not-allowed;
}

.level-cell.is-complete {
  background: linear-gradient(180deg, rgba(var(--accent-rgb), 0.22), rgba(var(--accent-rgb), 0.06));
  border-color: rgba(var(--accent-rgb), 0.45);
}

.level-cell .mini-stars {
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: #ffd76a;
  min-height: 0.8em;
}

.level-detail {
  margin-top: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  padding: 1rem;
  background: rgba(255, 255, 255, 0.04);
}

.level-detail h3 {
  margin: 0 0 0.2rem;
}

.level-detail dl {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
  gap: 0.6rem;
  margin: 0.8rem 0;
}

.level-detail dt {
  color: var(--text-dim);
  font-size: 0.64rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.level-detail dd {
  margin: 0.15rem 0 0;
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

/* ---- overlays --------------------------------------------------------- */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(4, 8, 18, 0.72);
  backdrop-filter: blur(10px);
  animation: fade-in 0.2s ease;
}

.overlay[hidden] {
  display: none;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.panel {
  width: min(420px, 94vw);
  max-height: 88vh;
  overflow-y: auto;
  background: linear-gradient(180deg, var(--panel), rgba(6, 10, 22, 0.98));
  border: 1px solid var(--panel-edge);
  border-radius: 22px;
  padding: 1.5rem 1.25rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  animation: panel-in 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.panel--wide {
  width: min(560px, 94vw);
}

@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.panel h2 {
  margin: 0;
  text-align: center;
  font-size: 1.35rem;
}

.panel__eyebrow {
  margin: 0;
  text-align: center;
  color: var(--accent);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.panel__note {
  margin: 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.78rem;
}

.panel__row {
  display: flex;
  gap: 0.6rem;
}

.panel__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(72px, 1fr));
  gap: 0.5rem;
  margin: 0.4rem 0;
}

.panel__stats div {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  padding: 0.5rem 0.3rem;
  text-align: center;
}

.panel__stats b {
  display: block;
  font-size: 1.05rem;
  font-variant-numeric: tabular-nums;
}

.panel__stats small {
  color: var(--text-dim);
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---- completion ------------------------------------------------------- */

.stars {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  font-size: 2.4rem;
  line-height: 1;
  margin: 0.3rem 0;
}

.stars span {
  color: rgba(255, 255, 255, 0.16);
  transform: scale(0.6);
  opacity: 0;
  animation: star-pop 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.stars span.on {
  color: #ffd76a;
  text-shadow: 0 0 22px rgba(255, 215, 106, 0.6);
}

.stars span:nth-child(2) {
  animation-delay: 0.13s;
}

.stars span:nth-child(3) {
  animation-delay: 0.26s;
}

@keyframes star-pop {
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.score {
  text-align: center;
  font-size: 2.2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.score__break {
  display: flex;
  justify-content: center;
  gap: 0.9rem;
  color: var(--text-dim);
  font-size: 0.74rem;
  font-variant-numeric: tabular-nums;
}

/* ---- settings --------------------------------------------------------- */

.settings {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.settings h3 {
  margin: 0.8rem 0 0.2rem;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.setting {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0.2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  min-height: var(--tap);
}

.setting label {
  font-size: 0.9rem;
}

.setting small {
  display: block;
  color: var(--text-dim);
  font-size: 0.7rem;
  margin-top: 0.15rem;
  max-width: 24ch;
}

.switch {
  position: relative;
  width: 50px;
  height: 30px;
  flex: none;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: background 0.2s ease;
}

.switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.switch[aria-checked='true'] {
  background: rgba(var(--accent-rgb), 0.85);
}

.switch[aria-checked='true']::after {
  transform: translateX(20px);
}

.setting input[type='range'] {
  width: 130px;
  accent-color: var(--accent);
}

/* ---- achievements / themes / store ------------------------------------ */

.ach-list,
.theme-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-height: 58vh;
  overflow-y: auto;
}

.ach {
  display: flex;
  gap: 0.8rem;
  align-items: center;
  padding: 0.7rem 0.8rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.ach.is-locked {
  opacity: 0.45;
}

.ach__icon {
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  background: rgba(var(--accent-rgb), 0.16);
  color: var(--accent);
}

.ach b {
  display: block;
  font-size: 0.92rem;
}

.ach small {
  color: var(--text-dim);
  font-size: 0.74rem;
}

.theme-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.7rem 0.8rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
}

.theme-row.is-active {
  border-color: rgba(var(--accent-rgb), 0.6);
  background: rgba(var(--accent-rgb), 0.1);
}

.theme-swatch {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  flex: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.theme-row div {
  flex: 1;
}

.theme-row b {
  display: block;
  font-size: 0.92rem;
}

.theme-row small {
  color: var(--text-dim);
  font-size: 0.73rem;
}

.theme-row .btn {
  width: auto;
  min-width: 92px;
}

.daily {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.notice {
  border: 1px dashed rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  padding: 0.8rem;
  color: var(--text-dim);
  font-size: 0.8rem;
  line-height: 1.5;
}

/* ---- toasts ----------------------------------------------------------- */

.toast-stack {
  position: fixed;
  left: 50%;
  bottom: calc(env(safe-area-inset-bottom) + 96px);
  transform: translateX(-50%);
  z-index: 70;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: center;
  pointer-events: none;
  width: max-content;
  max-width: 92vw;
}

.toast {
  background: rgba(8, 14, 28, 0.94);
  border: 1px solid rgba(var(--accent-rgb), 0.35);
  color: var(--text);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  font-size: 0.84rem;
  box-shadow: var(--shadow);
  animation: toast-in 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.toast.is-out {
  animation: toast-out 0.25s ease forwards;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
}

@keyframes toast-out {
  to {
    opacity: 0;
    transform: translateY(-8px);
  }
}

/* ---- wide screens ----------------------------------------------------- */

@media (min-width: 900px) {
  .scroll {
    padding: 1.4rem max(1rem, calc(50vw - 430px)) 3rem;
  }

  .level-grid {
    grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
  }
}