/* Shared components — the parts both pages are built from.
   Page shell, top bar, mark, segmented control, buttons, footer. */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  padding: 0 calc(var(--gutter) + var(--safe-r))
    calc(64px + var(--safe-b)) calc(var(--gutter) + var(--safe-l));
  transition:
    background var(--d) ease,
    color var(--d) ease;
}

/* Installed on iOS the page runs under the status bar, so the top strip is
   painted opaque across the full width and everything below clears it. */
body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--safe-t);
  background: var(--bg);
  z-index: 30;
  pointer-events: none;
}

.app {
  max-width: 1180px;
  margin: 0 auto;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: calc(20px + var(--safe-t)) 0 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.mark {
  width: 26px;
  height: 26px;
  flex: none;
  display: block;
  --mark-band: currentColor;
  --mark-tile: var(--accent);
}

.brand-name {
  font-size: 15px;
  font-weight: 640;
  letter-spacing: -0.015em;
  margin: 0;
  white-space: nowrap;
}

.seg {
  position: relative;
  display: inline-flex;
  padding: 3px;
  gap: 2px;
  background: var(--panel-2);
  border-radius: var(--r);
  box-shadow: inset 0 0 0 1px var(--line);
  flex: none;
}

.seg-thumb {
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 0;
  background: var(--accent);
  border-radius: 7px;
  pointer-events: none;
  transition:
    transform var(--d) var(--e-out),
    width var(--d) var(--e-out),
    height var(--d) var(--e-out);
}

.seg button {
  position: relative;
  z-index: 1;
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--dim);
  font-family: var(--sans);
  font-size: 12.5px;
  font-weight: 560;
  letter-spacing: -0.005em;
  padding: 6px 13px;
  border-radius: 7px;
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--d-fast) ease;
}

.seg button[aria-checked="true"],
.seg button[aria-pressed="true"] {
  color: var(--accent-ink);
}

@media (hover: hover) and (pointer: fine) {
  .seg button:not([aria-checked="true"]):not([aria-pressed="true"]):hover {
    color: var(--text);
  }
}

.seg button:active {
  transform: scale(var(--press));
  transition: transform var(--d-fast) var(--e-out);
}

.seg.seg-sm button {
  padding: 5px 10px;
  font-size: 12px;
}

/* Buttons */
.btn {
  position: relative;
  appearance: none;
  display: inline-block;
  text-decoration: none;
  border: 0;
  border-radius: var(--r-sm);
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 620;
  letter-spacing: -0.005em;
  padding: 11px 16px;
  cursor: pointer;
  transition:
    transform var(--d-fast) var(--e-out),
    background var(--d-fast) ease,
    opacity var(--d-fast) ease;
}

.btn:active:not(:disabled) {
  transform: scale(var(--press));
}

.btn.secondary {
  background: transparent;
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line);
  font-weight: 560;
}

.btn.ghost {
  background: transparent;
  color: var(--dim);
  font-weight: 520;
  font-size: 12px;
  padding: 6px 8px;
}

@media (hover: hover) and (pointer: fine) {
  .btn:not(:disabled):hover {
    background: color-mix(in srgb, var(--accent) 86%, var(--text));
  }
  .btn.secondary:not(:disabled):hover {
    background: var(--panel-2);
  }
  .btn.ghost:not(:disabled):hover {
    background: var(--panel-2);
    color: var(--text);
  }
}

.btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
}

/* Label swap, blur-masked so the two states read as one object. */
.btn .lbl {
  display: block;
  transition:
    opacity var(--d) ease,
    filter var(--d) ease;
}

.btn .lbl-done {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  filter: blur(3px);
}

.btn.done .lbl-main {
  opacity: 0;
  filter: blur(3px);
}

.btn.done .lbl-done {
  opacity: 1;
  filter: blur(0);
}

footer {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
}

footer a {
  color: var(--dim);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--line-strong);
  transition: color var(--d-fast) ease;
}

@media (hover: hover) and (pointer: fine) {
  footer a:hover {
    color: var(--accent-dim);
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

[hidden] {
  display: none !important;
}

/* Holds the <symbol> the mark is stamped from; never renders itself. */
.sprite {
  display: none;
}

.seg-full {
  width: 100%;
}
.seg-full button {
  flex: 1;
}