/* ============================================================
   PixiePal — UI components
   ============================================================ */

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-lg);
  padding: var(--s-4);
  box-shadow: var(--shadow);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  position: relative;
  overflow: hidden;
}
.card--tap {
  cursor: pointer;
  transition: transform 160ms var(--ease-spring), border-color var(--dur), box-shadow var(--dur);
  text-align: left;
  width: 100%;
  display: block;
}
.card--tap:active {
  transform: scale(0.978);
  border-color: var(--hairline-strong);
}
.card--flat {
  box-shadow: none;
  background: var(--surface-2);
}
.card--glow::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--accent), transparent 40%, var(--accent-3));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.75;
}
.card__title {
  font-family: var(--font-display);
  font-size: var(--t-lg);
  font-weight: 800;
  letter-spacing: -0.015em;
  line-height: 1.25;
}
.card__sub {
  font-size: var(--t-sm);
  color: var(--ink-3);
  margin-top: 2px;
}

/* ---------- Section headers ---------- */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--s-3);
  margin: var(--s-6) 0 var(--s-3);
}
.section-head:first-child {
  margin-top: var(--s-2);
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: var(--t-xl);
  font-weight: 800;
  letter-spacing: -0.025em;
}
.section-head .eyebrow {
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-title {
  font-family: var(--font-display);
  font-size: var(--t-2xl);
  font-weight: 900;
  letter-spacing: -0.035em;
  line-height: 1.08;
}
.page-lede {
  color: var(--ink-2);
  font-size: var(--t-md);
  margin-top: var(--s-2);
  max-width: 56ch;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  position: relative;
  min-height: var(--tap);
  padding: 0 var(--s-5);
  border-radius: var(--r-pill);
  font-weight: 700;
  font-size: var(--t-md);
  border: 1px solid transparent;
  transition: transform 140ms var(--ease-spring), filter var(--dur), background var(--dur);
  white-space: nowrap;
}
.btn:active {
  transform: scale(0.94);
}
.btn:disabled {
  opacity: 0.45;
  pointer-events: none;
}
.btn--primary {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: var(--glow);
}
.btn--ghost {
  background: var(--surface-2);
  color: var(--ink);
  border-color: var(--hairline);
}
.btn--outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--hairline-strong);
}
.btn--danger {
  background: var(--bad);
  color: #fff;
}
.btn--sm {
  min-height: 36px;
  padding: 0 var(--s-3);
  font-size: var(--t-sm);
}
.btn--block {
  display: flex;
  width: 100%;
}
.btn--icon {
  width: var(--tap);
  min-width: var(--tap);
  padding: 0;
}

/* A small control may LOOK small — it may not BE small. This invisible sibling
   pushes the touch target out to Apple's 44pt floor without fattening the pill,
   so a tired thumb in a queue still lands it. */
.btn--sm::after,
.chip::after,
.switch::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  min-width: var(--tap);
  height: 100%;
  min-height: var(--tap);
}

/* ---------- Chips / filter pills ---------- */
.chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 34px;
  padding: 0 var(--s-3);
  border-radius: var(--r-pill);
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  font-size: var(--t-sm);
  font-weight: 600;
  color: var(--ink-2);
  transition: all 160ms var(--ease-out);
}
.chip[aria-pressed="true"],
.chip.is-on {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: transparent;
  font-weight: 700;
}
.chip:active {
  transform: scale(0.93);
}
.chip--tiny {
  min-height: 24px;
  padding: 0 9px;
  font-size: var(--t-xs);
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: var(--r-pill);
  font-size: var(--t-xs);
  font-weight: 700;
  letter-spacing: 0.01em;
  background: color-mix(in srgb, var(--accent-2) 20%, transparent);
  color: var(--ink);
  border: 1px solid color-mix(in srgb, var(--accent-2) 34%, transparent);
}
.badge--ok {
  background: color-mix(in srgb, var(--ok) 20%, transparent);
  border-color: color-mix(in srgb, var(--ok) 40%, transparent);
  color: var(--ok);
}
.badge--warn {
  background: color-mix(in srgb, var(--warn) 20%, transparent);
  border-color: color-mix(in srgb, var(--warn) 40%, transparent);
  color: var(--warn);
}
.badge--bad {
  background: color-mix(in srgb, var(--bad) 20%, transparent);
  border-color: color-mix(in srgb, var(--bad) 40%, transparent);
  color: var(--bad);
}
.badge--gold {
  background: color-mix(in srgb, var(--accent) 22%, transparent);
  border-color: color-mix(in srgb, var(--accent) 46%, transparent);
  color: var(--accent);
}

/* ---------- Stat tiles ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(88px, 1fr));
  gap: var(--s-2);
}
.stat {
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  padding: var(--s-3) var(--s-2);
  text-align: center;
}
.stat__num {
  font-family: var(--font-display);
  font-size: var(--t-xl);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}
.stat__label {
  font-size: var(--t-xs);
  color: var(--ink-3);
  margin-top: 4px;
  font-weight: 600;
}

/* ---------- Progress ---------- */
.progress {
  height: 9px;
  border-radius: var(--r-pill);
  background: color-mix(in srgb, var(--ink-3) 26%, transparent);
  overflow: hidden;
}
.progress__bar {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent-3), var(--accent));
  transition: width 600ms var(--ease-out);
}

/* Circular XP ring */
.ring {
  --pct: 0;
  --size: 66px;
  width: var(--size);
  height: var(--size);
  flex: 0 0 auto;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(
    var(--accent) calc(var(--pct) * 1%),
    color-mix(in srgb, var(--ink-3) 24%, transparent) 0
  );
  position: relative;
  transition: background 700ms var(--ease-out);
}
.ring::before {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: var(--surface-solid);
}
.ring__label {
  position: relative;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: var(--t-sm);
  font-variant-numeric: tabular-nums;
}

/* ---------- Empty / loading states ---------- */
.empty {
  text-align: center;
  padding: var(--s-7) var(--s-4);
  color: var(--ink-3);
}
.empty__ico {
  font-size: 2.6rem;
  margin-bottom: var(--s-3);
  opacity: 0.85;
}
.skeleton {
  background: linear-gradient(
    100deg,
    var(--surface-2) 30%,
    color-mix(in srgb, var(--ink-3) 20%, var(--surface-2)) 50%,
    var(--surface-2) 70%
  );
  background-size: 220% 100%;
  animation: shimmer 1.3s linear infinite;
  border-radius: var(--r-md);
}
@keyframes shimmer {
  to {
    background-position: -220% 0;
  }
}
.spinner {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2.5px solid color-mix(in srgb, var(--ink-3) 35%, transparent);
  border-top-color: var(--accent);
  animation: spin 700ms linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------- Search field ---------- */
.field {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  background: var(--surface-2);
  border: 1px solid var(--hairline);
  border-radius: var(--r-pill);
  padding: 0 var(--s-4);
  min-height: var(--tap);
}
.field input,
.field textarea {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  outline: none;
  font-size: 16px; /* < 16px triggers iOS zoom-on-focus */
}
.field input::placeholder {
  color: var(--ink-3);
}

/* ---------- Bottom sheet / modal ---------- */
.sheet-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(4, 3, 16, 0.66);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: fadeIn 200ms var(--ease-out);
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
}
.sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 210;
  /* 90dvh alone can still tuck the header under the Dynamic Island on a tall sheet. */
  max-height: min(90dvh, calc(100dvh - var(--top-total) - var(--s-3)));
  display: flex;
  flex-direction: column;
  background: var(--surface-solid);
  border-top: 1px solid var(--hairline-strong);
  border-radius: var(--r-xl) var(--r-xl) 0 0;
  box-shadow: var(--shadow-lift);
  animation: sheetUp 340ms var(--ease-out);
  /* The home indicator sits on top of the sheet's last row — usually its primary
     button. Insets go on the shell so every child clears it, landscape included. */
  padding-bottom: env(safe-area-inset-bottom, 0px);
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
}
@keyframes sheetUp {
  from {
    transform: translateY(100%);
  }
}
.sheet__grip {
  width: 42px;
  height: 4px;
  border-radius: var(--r-pill);
  background: var(--ink-3);
  opacity: 0.5;
  margin: var(--s-3) auto var(--s-2);
  flex: 0 0 auto;
}
.sheet__head {
  padding: 0 var(--s-5) var(--s-3);
  border-bottom: 1px solid var(--hairline);
  flex: 0 0 auto;
}
.sheet__body {
  padding: var(--s-4) var(--s-5) var(--s-6);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}
@media (min-width: 720px) {
  .sheet {
    left: 50%;
    right: auto;
    bottom: auto;
    top: 50%;
    transform: translate(-50%, -50%);
    width: min(620px, 92vw);
    border-radius: var(--r-xl);
    border: 1px solid var(--hairline-strong);
    animation: popIn 280ms var(--ease-spring);
  }
  @keyframes popIn {
    from {
      opacity: 0;
      transform: translate(-50%, -46%) scale(0.95);
    }
  }
}

/* ---------- Toast ---------- */
#toasts {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(var(--nav-h) + var(--s-3));
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  /* 100vw ignores the notch in landscape, so a toast would slide under it. */
  width: min(
    440px,
    calc(100vw - var(--s-5) - env(safe-area-inset-left, 0px) - env(safe-area-inset-right, 0px))
  );
  pointer-events: none;
}
.toast {
  background: var(--surface-solid);
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-md);
  padding: var(--s-3) var(--s-4);
  box-shadow: var(--shadow-lift);
  font-size: var(--t-sm);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--s-3);
  animation: toastIn 300ms var(--ease-spring);
}
.toast.out {
  animation: toastOut 260ms var(--ease-out) forwards;
}
@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.94);
  }
}
@keyframes toastOut {
  to {
    opacity: 0;
    transform: translateY(-10px);
  }
}
.toast--ok {
  border-color: var(--ok);
}
.toast--bad {
  border-color: var(--bad);
}

/* ---------- Accordion ---------- */
details.acc {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-md);
  overflow: hidden;
}
details.acc + details.acc {
  margin-top: var(--s-2);
}
details.acc > summary {
  list-style: none;
  cursor: pointer;
  padding: var(--s-3) var(--s-4);
  min-height: var(--tap);
  display: flex;
  align-items: center;
  gap: var(--s-3);
  font-weight: 700;
  font-size: var(--t-md);
}
details.acc > summary::-webkit-details-marker {
  display: none;
}
details.acc > summary::after {
  content: "▾";
  margin-left: auto;
  color: var(--ink-3);
  transition: transform var(--dur) var(--ease-out);
}
details.acc[open] > summary::after {
  transform: rotate(180deg);
}
details.acc[open] > summary {
  border-bottom: 1px solid var(--hairline);
}
.acc__body {
  padding: var(--s-4);
}

/* ---------- Toggle switch ---------- */
.switch {
  position: relative;
  width: 50px;
  height: 30px;
  border-radius: var(--r-pill);
  background: color-mix(in srgb, var(--ink-3) 40%, transparent);
  transition: background var(--dur);
  flex: 0 0 auto;
}
.switch[aria-checked="true"] {
  background: var(--accent);
}
.switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #fff;
  transition: transform var(--dur) var(--ease-spring);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
}
.switch[aria-checked="true"]::after {
  transform: translateX(20px);
}

/* ---------- Confetti ---------- */
#confetti {
  position: fixed;
  inset: 0;
  z-index: 400;
  pointer-events: none;
}

/* ---------- Prose (long-form content) ---------- */
.prose p + p {
  margin-top: var(--s-3);
}
.prose h3 {
  font-family: var(--font-display);
  font-size: var(--t-lg);
  font-weight: 800;
  margin: var(--s-5) 0 var(--s-2);
  letter-spacing: -0.02em;
}
.prose ul {
  margin-top: var(--s-2);
}
.prose li {
  padding-left: var(--s-5);
  position: relative;
  margin-top: var(--s-2);
  color: var(--ink-2);
}
.prose li::before {
  content: "✦";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.82em;
}
.prose strong {
  color: var(--ink);
}
blockquote.pull {
  border-left: 3px solid var(--accent);
  padding: var(--s-2) 0 var(--s-2) var(--s-4);
  margin: var(--s-4) 0;
  font-style: italic;
  color: var(--ink-2);
}