/* EQD2 Calculator — styles (v2) */

:root {
  --bg: #FAFAF7;
  --text: #1F1F1F;
  --muted: #6B6B6B;
  --faint: #A8A6A0;
  --rule: #E7E5DE;
  --rule-strong: #D9D6CD;

  --accent: oklch(0.55 0.08 200);
  --accent-soft: oklch(0.93 0.03 200);
  --ok: oklch(0.62 0.10 145);
  --warn: oklch(0.72 0.09 70);

  --pad-card: 28px;
  --gap-field: 20px;

  --ff-ui: 'IBM Plex Sans', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Helvetica, Arial, sans-serif;
  --ff-mono: 'IBM Plex Mono', ui-monospace, 'JetBrains Mono', 'SFMono-Regular', Menlo, Consolas, monospace;

  --fs-base: 15px;
  --lh-base: 1.55;
}

:root[data-bg="paper"] { --bg: #FAFAF7; --rule: #E7E5DE; --rule-strong: #D9D6CD; --faint: #A8A6A0; }
:root[data-bg="cool"]  { --bg: #F6F7F8; --rule: #E5E7EA; --rule-strong: #D5D8DC; --faint: #A0A4A8; }
:root[data-bg="white"] { --bg: #FFFFFF; --rule: #EEEEEE; --rule-strong: #DDDDDD; --faint: #AAAAAA; }

:root[data-accent="teal"] { --accent: oklch(0.55 0.08 200); --accent-soft: oklch(0.93 0.03 200); }
:root[data-accent="ink"]  { --accent: oklch(0.45 0.08 260); --accent-soft: oklch(0.93 0.03 260); }
:root[data-accent="moss"] { --accent: oklch(0.50 0.06 145); --accent-soft: oklch(0.93 0.03 145); }
:root[data-accent="none"] { --accent: #4A4A48; --accent-soft: #EDEDEA; }

:root[data-typepair="inter"]  { --ff-ui: 'Inter', system-ui, sans-serif; --ff-mono: 'JetBrains Mono', ui-monospace, monospace; }
:root[data-typepair="system"] { --ff-ui: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif; --ff-mono: ui-monospace, 'SFMono-Regular', Menlo, monospace; }

:root[data-density="compact"] { --pad-card: 18px; --gap-field: 14px; --fs-base: 14px; }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); }
body {
  font-family: var(--ff-ui);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  font-feature-settings: 'tnum', 'ss01';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}
button { font: inherit; color: inherit; }
input { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}
input:focus, button:focus { outline: none; }
input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ------- App shell ------- */
.app {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 32px 180px;
}

.app__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 40px;
  color: var(--muted);
  font-size: 13px;
}
.app__head-left { display: flex; align-items: baseline; gap: 10px; min-width: 0; }
.app__name {
  font-family: var(--ff-mono);
  font-weight: 500;
  color: var(--text);
  font-size: 13px;
  letter-spacing: 0.04em;
}
.app__sep { color: var(--faint); }

/* ------- Session banner ------- */
.session-banner {
  margin: -20px 0 32px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--muted);
  border-left: 2px solid var(--rule-strong);
}
.session-banner--stale {
  border-left-color: var(--warn);
  background: oklch(0.97 0.03 70);
  color: var(--text);
}
.session-banner__action {
  border: 0;
  background: transparent;
  padding: 0;
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ------- Course card ------- */
.course {
  padding: 24px 0;
  border-top: 1px solid var(--rule);
}
.course:first-of-type { border-top: 0; padding-top: 4px; }

.course__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
  min-height: 22px;
}
.course__label { min-width: 0; flex: 1; }

.course__title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 0;
  background: transparent;
  padding: 2px 0;
  color: var(--faint);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  cursor: pointer;
  transition: color 120ms;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.course__title--set {
  color: var(--muted);
  text-transform: none;
  letter-spacing: 0;
  font-size: 13px;
  font-weight: 500;
}
.course__title:hover { color: var(--text); }
.course__title-edit {
  opacity: 0;
  color: var(--faint);
  display: inline-flex;
  transition: opacity 120ms;
}
.course__title:hover .course__title-edit { opacity: 1; }

.course__title-input {
  border: 0;
  background: transparent;
  padding: 2px 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  width: 100%;
  border-bottom: 1px solid var(--accent);
}

.course__remove {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--faint);
  cursor: pointer;
  border-radius: 50%;
  transition: color 120ms, background 120ms;
  opacity: 0;
}
.course:hover .course__remove { opacity: 1; }
.course__remove:hover { color: var(--text); background: var(--rule); }
.course__remove:focus-visible { opacity: 1; }

/* ------- Magic Triangle ------- */
.triangle-row {
  display: flex;
  align-items: flex-end;
  gap: 28px;
}
.triangle {
  display: flex;
  align-items: flex-end;
  gap: var(--gap-field);
  flex-wrap: nowrap;
  flex: 1;
  min-width: 0;
}
.triangle__op {
  font-family: var(--ff-mono);
  font-size: 18px;
  font-weight: 300;
  color: var(--faint);
  padding-bottom: 12px;
  user-select: none;
}
/* TriangleField */
.tf { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.tf__label {
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
  font-weight: 400;
}
.tf__shell {
  position: relative;
  display: flex;
  align-items: baseline;
  background: color-mix(in oklab, var(--text) 3%, transparent);
  border: 0;
  padding: 10px 12px;
  border-radius: 3px;
  transition: background 120ms, box-shadow 120ms;
  width: 120px;
  min-height: 44px;
}
.tf__shell:hover { background: color-mix(in oklab, var(--text) 5%, transparent); }
.tf__shell:focus-within {
  background: color-mix(in oklab, var(--text) 5%, transparent);
  box-shadow: inset 0 -2px 0 0 var(--accent);
}
.tf__shell input {
  border: 0;
  background: transparent;
  width: 100%;
  font-family: var(--ff-mono);
  font-size: 17px;
  font-variant-numeric: tabular-nums;
  font-weight: 400;
  color: var(--text);
  padding: 0;
  min-width: 0;
}
.tf__shell input::placeholder { color: var(--faint); }
.tf__suffix {
  font-family: var(--ff-mono);
  font-size: 11.5px;
  color: var(--faint);
  margin-left: 6px;
  font-weight: 300;
}

.inline-num {
  border: 0;
  background: color-mix(in oklab, var(--text) 3%, transparent);
  font: inherit;
  font-family: var(--ff-mono);
  font-variant-numeric: tabular-nums;
  color: var(--text);
  width: 46px;
  padding: 4px 6px;
  border-radius: 2px;
  margin: 0 2px;
  text-align: center;
  min-height: 28px;
  transition: background 120ms, box-shadow 120ms;
}
.inline-num:hover { background: color-mix(in oklab, var(--text) 5%, transparent); }
.inline-num:focus-visible {
  background: color-mix(in oklab, var(--text) 5%, transparent);
  box-shadow: inset 0 -2px 0 0 var(--accent);
}

/* ------- Self-test safety banner ------- */
.self-test-banner {
  background: #c0392b;
  color: #ffffff;
  padding: 14px 32px;
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  line-height: 1.5;
  position: sticky;
  top: 0;
  z-index: 100;
}

/* ------- Course right-hand-side panel (240px) ------- */
.course-rhs {
  flex: 0 0 240px;
  width: 240px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 6px;
  min-height: 44px;
  justify-content: flex-end;
}
.course-rhs__eqd2 {
  display: flex;
  align-items: baseline;
  gap: 5px;
  font-family: var(--ff-mono);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  white-space: nowrap;
  min-height: 20px;
}
.course-rhs__eqd2-label { color: var(--muted); }
.course-rhs__eqd2-ab { color: var(--faint); font-weight: 400; }
.course-rhs__eqd2-raw { font-weight: 500; color: var(--text); }
.course-rhs__eqd2-arrow { color: var(--faint); font-size: 13px; }
.eqd2-arrow { font-size: 1.15em; margin: 0 4px; vertical-align: -0.05em; line-height: 1; }
.course-rhs__eqd2-rcv { font-weight: 500; color: var(--accent); }
.course-rhs__eqd2-unit { color: var(--faint); }

/* Slider + numeric input row */
.course-rhs__slider-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* ------- Recovery slider (native range, design-token styled) ------- */
.rcv-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(
    to right,
    var(--accent) var(--rcv-fill, 0%),
    color-mix(in oklab, var(--text) 8%, transparent) var(--rcv-fill, 0%)
  );
  outline: none;
  cursor: pointer;
}
.rcv-slider:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 2px; }
.rcv-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 1px 3px rgba(0,0,0,0.12);
  cursor: pointer;
}
.rcv-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 1px 3px rgba(0,0,0,0.12);
  cursor: pointer;
  border: 2px solid var(--bg);
}

/* ------- Recovery numeric input ------- */
.rcv-input {
  display: flex;
  align-items: center;
  background: color-mix(in oklab, var(--text) 3%, transparent);
  padding: 0 12px;
  border-radius: 3px;
  height: 44px;
  min-width: 64px;
  gap: 6px;
  transition: background 120ms, box-shadow 120ms;
}
.rcv-input:focus-within {
  background: color-mix(in oklab, var(--text) 5%, transparent);
  box-shadow: inset 0 -2px 0 0 var(--accent);
}
.rcv-input__field {
  flex: 1;
  border: 0;
  background: transparent;
  font-family: var(--ff-mono);
  font-size: 17px;
  color: var(--text);
  font-weight: 400;
  text-align: right;
  outline: none;
  width: 32px;
  font-variant-numeric: tabular-nums;
}
.rcv-input__pct {
  font-family: var(--ff-mono);
  font-size: 11.5px;
  color: var(--faint);
  font-weight: 300;
}

/* ------- Course actions row ------- */
.course-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
}
.add-recovery {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--ff-ui);
  padding: 16px 0;
  margin-top: 4px;
  margin-left: 24px;
  cursor: pointer;
  transition: color 120ms;
}
.add-recovery:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ------- Recovery column in cumulative table ------- */
.cum--recovery .cum__colhead,
.cum--recovery .out-row {
  grid-template-columns: minmax(110px, 1fr) minmax(120px, 1fr) minmax(120px, 1fr) minmax(120px, 1fr);
}
.cum__colhead-cell--recovery {
  color: var(--accent);
  line-height: 1.3;
}
.out-row__val--recovery { color: var(--accent); }
.out-val--recovery .out-val__num { color: var(--accent); }

/* ------- Add course ------- */
.add-course:focus-visible {
  outline: none;
  border-color: var(--accent);
  background: color-mix(in oklch, var(--accent) 8%, transparent);
  color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--accent) 18%, transparent);
}
.add-course:focus-visible::after {
  content: "type a dose to start next course";
  position: absolute;
  left: 0;
  top: 100%;          /* below the button instead of to its right */
  margin-top: 4px;
  white-space: nowrap;
  pointer-events: none;
  font-family: var(--ff-mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--faint);
  letter-spacing: 0;
  text-transform: none;
}
.add-course {
  position: relative;  /* establishes containing block for the ::after hint */
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  padding: 16px 0;
  margin-top: 4px;
  cursor: pointer;
}
.add-course:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ------- Cumulative output ------- */
.cum {
  margin-top: 28px;
  padding: 24px 0 16px;
  border-top: 1px solid var(--rule-strong);
  border-bottom: 1px solid var(--rule);
}
.cum__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 16px;
}
.cum__title {
  font-family: var(--ff-ui);
  font-size: 15px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
  font-weight: 600;
}
.cum__sub {
  font-family: var(--ff-mono);
  font-size: 12px;
  color: var(--faint);
}
.cum__colhead {
  display: grid;
  grid-template-columns: minmax(110px, 1fr) minmax(140px, 1.2fr) minmax(140px, 1.2fr);
  gap: 20px;
  padding: 0 0 10px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 4px;
}
.cum__colhead-cell {
  font-family: var(--ff-ui);
  font-size: 13px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
  font-weight: 600;
}
.cum__rows { display: flex; flex-direction: column; }

.cum__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-top: 14px;
}
.add-custom {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 0;
  background: transparent;
  color: var(--accent);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 0;
  cursor: pointer;
}
.add-custom:hover { text-decoration: underline; text-underline-offset: 3px; }
.custom-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  padding: 0;
  margin-left: 4px;
  border: 0;
  background: transparent;
  color: var(--faint);
  cursor: pointer;
  border-radius: 50%;
  vertical-align: middle;
  opacity: 0;
  transition: opacity 120ms, color 120ms, background 120ms;
}
.out-row:hover .custom-remove { opacity: 1; }
.custom-remove:hover { color: var(--text); background: var(--rule); }

.out-row {
  display: grid;
  grid-template-columns: minmax(110px, 1fr) minmax(140px, 1.2fr) minmax(140px, 1.2fr);
  align-items: baseline;
  gap: 20px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}
.out-row:last-child { border-bottom: 0; }
.out-row__label {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
}
.out-row__ab {
  font-family: var(--ff-mono);
  font-size: 13.5px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
  font-weight: 400;
}
.out-row__val {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--ff-mono);
  font-variant-numeric: tabular-nums;
  color: var(--text);
}
.out-label {
  font-family: var(--ff-ui);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
  font-weight: 400;
}
.out-val {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
}
.out-val__num {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}
.out-val__unit {
  font-size: 12px;
  color: var(--muted);
  font-weight: 400;
}
.out-val--empty {
  font-size: 22px;
  font-weight: 400;
  color: var(--faint);
}

.cum__foot {
  display: none;
}
.ref-dose-inline {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
}
.ref-dose-inline__label {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
}
.ref-dose-inline__unit {
  font-family: var(--ff-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--faint);
}
.ref-dose-inline .inline-num {
  color: var(--text);
  width: 50px;
  font-size: 14px;
  min-height: 30px;
  padding: 4px 6px;
  font-weight: 500;
}

/* ------- Summary bar ------- */
.summary--inline {
  margin-top: 32px;
  padding-top: 20px;
}
.summary__inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.summary--inline .summary__inner { padding: 0; }
.summary__text {
  flex: 1;
  margin: 0;
  font-size: 13.5px;
  color: var(--text);
  line-height: 1.55;
  font-variant-numeric: tabular-nums;
}
.summary__block { }
.summary__block + .summary__block { margin-top: 14px; }
.summary__line { margin: 0; }
.summary__line + .summary__line { margin-top: 3px; }
.summary__copy {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  margin: -10px -10px 0 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: 50%;
  transition: color 120ms, background 120ms;
}
.summary__copy:hover { color: var(--accent); background: var(--accent-soft); }
.summary__copy--ok { color: var(--ok); }

/* ------- Clear all (top right) ------- */
.clear-all {
  border: 0;
  background: transparent;
  padding: 7px 12px;
  margin-right: -12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  min-height: 32px;
  border-radius: 3px;
  transition: color 120ms, background 120ms;
}
.clear-all:hover { color: var(--text); background: var(--rule); }

/* ------- Tweaks ------- */
.tweaks-fab {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 50;
  border: 1px solid var(--rule-strong);
  background: var(--bg);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
}
.tweaks {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 60;
  width: 280px;
  background: var(--bg);
  border: 1px solid var(--rule-strong);
  padding: 16px;
  font-size: 12.5px;
  box-shadow: 0 12px 28px rgba(0,0,0,0.08);
  border-radius: 4px;
}
.tweaks__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.tweaks__title { text-transform: uppercase; letter-spacing: 0.14em; font-size: 10.5px; font-weight: 600; color: var(--muted); }
.tweaks__close { border: 0; background: transparent; color: var(--faint); cursor: pointer; padding: 4px; }
.tweak-row { margin-bottom: 12px; }
.tweak-row__label { text-transform: uppercase; letter-spacing: 0.1em; font-size: 10px; color: var(--muted); margin-bottom: 6px; }
.tweak-row__options { display: flex; flex-wrap: wrap; gap: 6px; }
.tweak-opt {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border: 1px solid var(--rule-strong);
  background: transparent;
  font-size: 11.5px;
  color: var(--muted);
  cursor: pointer;
  border-radius: 2px;
  transition: color 120ms, border-color 120ms;
}
.tweak-opt:hover { color: var(--text); }
.tweak-opt--on { color: var(--text); border-color: var(--accent); background: var(--accent-soft); }
.tweak-opt__swatch {
  width: 10px; height: 10px;
  border: 1px solid rgba(0,0,0,0.1);
  display: inline-block;
  border-radius: 50%;
}

/* ------- Mobile < 640px ------- */
@media (max-width: 640px) {
  .app { padding: 32px 20px 160px; overflow-x: hidden; }
  .app__head { margin-bottom: 28px; }
  .course { padding: 22px 0; }

  .triangle-row { flex-direction: column; align-items: stretch; gap: 0; }
  .triangle { gap: 10px; }
  .tf__shell { width: auto; flex: 1; min-width: 0; padding: 10px 8px; }
  .course-rhs {
    flex: none;
    width: auto;
    padding-bottom: 0;
    padding-top: 8px;
    min-height: 0;
    gap: 10px;
  }
  .course-rhs__eqd2 { justify-content: flex-end; }
  .rcv-slider::-webkit-slider-thumb { width: 18px; height: 18px; }
  .rcv-slider::-moz-range-thumb { width: 18px; height: 18px; }
  .rcv-slider::-webkit-slider-runnable-track { border-radius: 2px; }
  .rcv-slider::-moz-range-track { border-radius: 2px; }
  .course-rhs__slider-row { flex-direction: column; align-items: stretch; gap: 12px; padding-left: 12px; padding-right: 12px; }
  .rcv-slider { width: 100%; }
  .rcv-input { align-self: flex-end; min-width: 110px; }
  .course-actions { gap: 0; }
  .add-recovery { margin-left: 16px; }
  .cum__colhead {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto;
  }
  .cum__colhead-cell--spacer { display: none; }
  .out-row {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    column-gap: 12px;
    row-gap: 6px;
    padding: 12px 0;
  }
  .out-row__label { grid-column: 1 / -1; grid-row: 1; }
  .out-row__val--bed { grid-column: 1 / 2; grid-row: 2; }
  .out-row__val--eqd { grid-column: 2 / 3; grid-row: 2; }

  .cum--recovery .cum__colhead { grid-template-columns: 1fr 1fr 1fr; }
  .cum--recovery .out-row { grid-template-columns: 1fr 1fr 1fr; grid-template-rows: auto auto; }
  .cum--recovery .out-row__val--eqd { grid-column: 2 / 3; justify-content: flex-start; }
  .cum--recovery .out-row__val--recovery { grid-column: 3 / 4; grid-row: 2; }

  .course__remove { opacity: 1; }


  .tweaks { right: 10px; left: 10px; width: auto; bottom: 10px; }
  .tweaks-fab { left: 12px; bottom: 12px; }
}

::selection { background: var(--accent-soft); color: var(--text); }

/* ------- Site footer ------- */
.site-footer {
  max-width: 820px;
  margin: 0 auto;
  padding: 36px 32px calc(108px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-family: var(--ff-ui);
  font-size: 0.875rem;
  line-height: 1.65;
  text-align: center;
}
.site-footer p {
  margin: 0 0 5px;
}
.site-footer p:last-of-type {
  margin-bottom: 0;
}
.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0 6px;
  margin-top: 10px;
}
.site-footer__links a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 2px;
  padding: 10px 5px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.site-footer__links a:hover { color: var(--accent); }
.site-footer__links a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}
.site-footer__sep {
  color: var(--faint);
  user-select: none;
  line-height: 44px;
}

@media (max-width: 640px) {
  .site-footer {
    padding: 32px 20px calc(108px + env(safe-area-inset-bottom));
    font-size: 0.8125rem;
  }
}

/* ------- Site footer attestation buttons ------- */
.site-footer__attest-btn {
  border: 0;
  background: transparent;
  padding: 10px 5px;
  min-height: 44px;
  color: var(--muted);
  font: inherit;
  font-size: 0.875rem;
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
}
.site-footer__attest-btn:hover { color: var(--accent); }
.site-footer__attest-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ------- Attestation modal ------- */
.attest-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.52);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 16px;
}
.attest-modal {
  background: var(--bg);
  border-radius: 8px;
  padding: 36px 40px 32px;
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.22);
  outline: none;
}
.attest-heading {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 16px;
  color: var(--text);
  line-height: 1.3;
}
.attest-heading:focus { outline: none; }
.attest-intro {
  margin: 0 0 18px;
  color: var(--text);
  line-height: 1.6;
  font-size: 0.9375rem;
}
.attest-list {
  margin: 0 0 20px;
  padding-left: 1.4em;
  color: var(--text);
}
.attest-list li {
  margin-bottom: 12px;
  line-height: 1.6;
  font-size: 0.9375rem;
}
.attest-list a {
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
  font-size: 0.875rem;
}
.attest-list a:hover { text-decoration: underline; }
.attest-list a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}
.attest-secondary {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.6;
}
.attest-secondary a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.attest-actions { margin-bottom: 14px; }
.attest-btn {
  display: block;
  width: 100%;
  padding: 14px 24px;
  border: 0;
  border-radius: 6px;
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 120ms;
}
.attest-btn--agree {
  background: var(--accent);
  color: #fff;
}
.attest-btn--agree:hover { opacity: 0.88; }
.attest-btn--close {
  background: var(--rule);
  color: var(--text);
}
.attest-btn--close:hover { background: var(--rule-strong); }
.attest-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}
.attest-modal-footer {
  margin: 0;
  text-align: center;
}
.attest-modal-footer a {
  color: var(--muted);
  font-size: 0.875rem;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.attest-modal-footer a:hover { color: var(--accent); }
.attest-modal-footer a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

@media (max-width: 640px) {
  .attest-overlay { padding: 0; align-items: flex-end; }
  .attest-modal {
    border-radius: 12px 12px 0 0;
    padding: 28px 20px 24px;
    max-height: 95vh;
  }
}