/* =========================================================
   TXT-ERS ACTIVITY CATALOG
   Shared visual system for the reusable, message-matched tools.
   ========================================================= */

.tac {
  --tac-accent: #4f8f72;
  --tac-accent-strong: #2f6652;
  --tac-accent-soft: #dceee5;
  --tac-accent-faint: #f2f8f5;
  --tac-secondary: #7a6ab1;
  --tac-secondary-soft: #ece8f7;
  --tac-warm: #d88a63;
  --tac-ink: #18243c;
  --tac-muted: #5c6577;
  --tac-line: rgba(45, 58, 78, 0.12);
  --tac-shadow: 0 14px 34px rgba(31, 43, 66, 0.09);

  position: relative;
  width: 100%;
  min-width: 0;
  color: var(--tac-ink);
  font-family: inherit;
}

/*
 * Keep each reusable tool inside one stable workspace. The activity body is
 * the only scrolling region, so the title, Back control, Reset control, and
 * completion action remain available when a tool contains several choices.
 */
.activity-card.has-activity-catalog.is-open .activity-card-frame,
.activity-card.has-activity-catalog.is-open .activity-card-back {
  height: min(760px, 82vh);
  min-height: 0;
  max-height: 82vh;
}

.activity-card.has-activity-catalog.is-open .activity-card-back-body {
  min-height: 0;
  overflow-y: auto;
  scrollbar-gutter: stable;
}

.tac--theme-lavender {
  --tac-accent: #7666ad;
  --tac-accent-strong: #504484;
  --tac-accent-soft: #e9e5f5;
  --tac-accent-faint: #f7f5fb;
  --tac-secondary: #4f8d76;
  --tac-secondary-soft: #e1efe9;
  --tac-warm: #d98967;
}

.tac--theme-coral {
  --tac-accent: #c87662;
  --tac-accent-strong: #8f4d3f;
  --tac-accent-soft: #f3ded8;
  --tac-accent-faint: #fcf6f3;
  --tac-secondary: #627e76;
  --tac-secondary-soft: #e1ece8;
  --tac-warm: #c79548;
}

.tac--theme-teal {
  --tac-accent: #4f9296;
  --tac-accent-strong: #32676b;
  --tac-accent-soft: #dceef0;
  --tac-accent-faint: #f1f8f8;
  --tac-secondary: #7569a7;
  --tac-secondary-soft: #ebe8f4;
  --tac-warm: #d7965f;
}

.tac--theme-gold {
  --tac-accent: #b7843d;
  --tac-accent-strong: #775622;
  --tac-accent-soft: #f1e5cc;
  --tac-accent-faint: #fbf7ed;
  --tac-secondary: #667f75;
  --tac-secondary-soft: #e2ece8;
  --tac-warm: #c9725d;
}

.tac--theme-blue {
  --tac-accent: #5f7da9;
  --tac-accent-strong: #405b82;
  --tac-accent-soft: #e0e8f3;
  --tac-accent-faint: #f3f6fa;
  --tac-secondary: #6f8463;
  --tac-secondary-soft: #e6eee1;
  --tac-warm: #cc8062;
}

.tac__intro {
  position: relative;
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  padding: 2px 2px 15px;
}

.tac__intro-motif {
  position: relative;
  width: 58px;
  height: 58px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.86);
  border-radius: 19px;
  background:
    radial-gradient(circle at 70% 22%, rgba(255, 255, 255, 0.78) 0 8%, transparent 9%),
    linear-gradient(145deg, var(--tac-accent-soft), var(--tac-secondary-soft));
  box-shadow: 0 9px 23px rgba(41, 52, 70, 0.09);
}

.tac__motif-ring,
.tac__motif-dot,
.tac__motif-leaf {
  position: absolute;
  display: block;
}

.tac__motif-ring {
  width: 40px;
  height: 40px;
  left: -11px;
  bottom: -10px;
  border: 7px solid color-mix(in srgb, var(--tac-accent) 70%, white);
  border-radius: 50%;
}

.tac__motif-dot {
  width: 11px;
  height: 11px;
  top: 10px;
  right: 10px;
  border-radius: 50%;
  background: var(--tac-warm);
}

.tac__motif-leaf {
  width: 15px;
  height: 28px;
  right: 13px;
  bottom: 5px;
  border-radius: 90% 10% 90% 10%;
  background: var(--tac-accent-strong);
  transform: rotate(28deg);
}

.tac__eyebrow,
.tac__heading,
.tac__instructions,
.tac__status,
.tac__privacy,
.tac__completion-eyebrow,
.tac__completion-title,
.tac__completion-use {
  margin: 0;
}

.tac__eyebrow {
  color: var(--tac-accent-strong);
  font-size: 0.66rem;
  font-weight: 850;
  line-height: 1.2;
  text-transform: uppercase;
  letter-spacing: 0.105em;
}

.tac__heading {
  margin-top: 5px;
  font-size: clamp(1.06rem, 2.4vw, 1.42rem);
  font-weight: 810;
  line-height: 1.18;
  letter-spacing: -0.026em;
}

.tac__instructions {
  max-width: 760px;
  margin-top: 7px;
  color: var(--tac-muted);
  font-size: 0.8rem;
  line-height: 1.55;
}

.tac__tool-meta {
  margin: 0 0 14px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.tac__tool-meta-item {
  min-width: 0;
  padding: 10px 12px;
  display: grid;
  gap: 4px;
  border: 1px solid color-mix(in srgb, var(--tac-accent) 18%, transparent);
  border-radius: 13px;
  background: color-mix(in srgb, var(--tac-accent-faint) 80%, white);
}

.tac__tool-meta-item small {
  color: var(--tac-accent-strong);
  font-size: 0.58rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.tac__tool-meta-item strong {
  color: #2c364a;
  font-size: 0.71rem;
  font-weight: 720;
  line-height: 1.35;
}

.tac__canvas {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(47, 59, 82, 0.1);
  border-radius: 22px;
  background:
    radial-gradient(circle at 12% 14%, color-mix(in srgb, var(--tac-accent-soft) 66%, transparent) 0 12%, transparent 34%),
    radial-gradient(circle at 91% 88%, color-mix(in srgb, var(--tac-secondary-soft) 76%, transparent) 0 13%, transparent 34%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.97), var(--tac-accent-faint));
  box-shadow: var(--tac-shadow);
  isolation: isolate;
}

.tac__canvas::before,
.tac__canvas::after {
  position: absolute;
  content: "";
  z-index: -1;
  pointer-events: none;
}

.tac__canvas::before {
  width: 118px;
  height: 62px;
  right: -35px;
  top: -19px;
  border: 1px solid color-mix(in srgb, var(--tac-accent) 22%, transparent);
  border-radius: 0 0 0 62px;
  background: color-mix(in srgb, var(--tac-accent-soft) 45%, transparent);
}

.tac__canvas::after {
  width: 70px;
  height: 70px;
  left: -31px;
  bottom: -33px;
  border: 10px solid color-mix(in srgb, var(--tac-secondary) 11%, transparent);
  border-radius: 50%;
}

.tac__completion {
  position: relative;
  margin-top: 14px;
  padding: 15px 17px;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 13px;
  align-items: start;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--tac-accent) 26%, transparent);
  border-radius: 17px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), color-mix(in srgb, var(--tac-accent-soft) 64%, white));
  box-shadow: 0 10px 25px rgba(40, 54, 71, 0.07);
  animation: tac-completion-in 420ms cubic-bezier(0.2, 0.76, 0.24, 1) both;
}

.tac__completion[hidden] {
  display: none;
}

.tac__completion-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--tac-accent-strong);
  color: #fff;
  box-shadow: 0 7px 16px color-mix(in srgb, var(--tac-accent) 28%, transparent);
  font-size: 1rem;
  font-weight: 900;
}

.tac__completion-eyebrow {
  color: var(--tac-accent-strong);
  font-size: 0.59rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.tac__completion-title {
  margin-top: 4px;
  color: var(--tac-ink);
  font-size: 0.92rem;
  line-height: 1.3;
}

.tac__summary {
  margin: 9px 0 0;
  padding: 0;
  border: 0;
  color: #354055;
  font-size: 0.83rem;
  font-weight: 620;
  line-height: 1.55;
}

.tac__completion-use {
  margin-top: 9px;
  color: var(--tac-muted);
  font-size: 0.66rem;
  font-weight: 650;
  line-height: 1.45;
}

.tac__status {
  min-height: 18px;
  margin-top: 9px;
  color: var(--tac-muted);
  font-size: 0.66rem;
  line-height: 1.4;
}

.tac__privacy {
  margin-top: 9px;
  display: flex;
  gap: 7px;
  align-items: flex-start;
  color: #697183;
  font-size: 0.62rem;
  line-height: 1.45;
}

.tac__privacy-icon {
  flex: 0 0 auto;
  color: var(--tac-accent-strong);
}

.tac button,
.tac input {
  font: inherit;
}

.tac button {
  touch-action: manipulation;
}

.tac button:focus-visible,
.tac input:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--tac-accent) 34%, transparent);
  outline-offset: 2px;
}

.tac__primary,
.tac__secondary,
.tac__small-button {
  min-height: 42px;
  padding: 9px 15px;
  border-radius: 12px;
  font-size: 0.74rem;
  font-weight: 790;
  cursor: pointer;
}

.tac__primary {
  border: 0;
  background: linear-gradient(135deg, var(--tac-accent-strong), var(--tac-accent));
  color: #fff;
  box-shadow: 0 8px 19px color-mix(in srgb, var(--tac-accent) 24%, transparent);
}

.tac__secondary {
  border: 1px solid color-mix(in srgb, var(--tac-accent) 26%, transparent);
  background: rgba(255, 255, 255, 0.9);
  color: var(--tac-accent-strong);
}

.tac__small-button {
  min-height: 40px;
  border: 0;
  background: var(--tac-accent-strong);
  color: #fff;
}

.tac button:disabled,
.activity-card-done:disabled {
  opacity: 0.46;
  cursor: not-allowed;
  box-shadow: none;
}

.tac-input {
  width: 100%;
  min-width: 0;
  min-height: 43px;
  padding: 10px 12px;
  border: 1px solid rgba(55, 66, 89, 0.16);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.93);
  color: var(--tac-ink);
  font-size: 0.76rem;
  line-height: 1.35;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.78);
}

.tac-input::placeholder {
  color: #8b92a0;
}

.tac-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.tac-choice-grid--compact {
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 7px;
}

.tac-choice {
  position: relative;
  min-width: 0;
  min-height: 44px;
  padding: 9px 11px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  border: 1px solid rgba(54, 67, 88, 0.13);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.91);
  color: #303b4f;
  box-shadow: 0 5px 13px rgba(37, 47, 67, 0.05);
  font-size: 0.7rem;
  font-weight: 690;
  line-height: 1.3;
  text-align: left;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.tac-choice::before {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  margin-right: 8px;
  content: "";
  border: 1px solid color-mix(in srgb, var(--tac-accent) 48%, transparent);
  border-radius: 50%;
  background: var(--tac-accent-soft);
}

.tac-choice:hover {
  transform: translateY(-1px);
  border-color: color-mix(in srgb, var(--tac-accent) 38%, transparent);
  box-shadow: 0 8px 17px rgba(37, 47, 67, 0.08);
}

.tac-choice.is-selected {
  border-color: color-mix(in srgb, var(--tac-accent) 66%, transparent);
  background: color-mix(in srgb, var(--tac-accent-soft) 72%, white);
  color: var(--tac-accent-strong);
  box-shadow: 0 8px 18px color-mix(in srgb, var(--tac-accent) 13%, transparent);
}

.tac-choice.is-selected::before {
  border-color: var(--tac-accent-strong);
  background: var(--tac-accent-strong);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tac-accent) 16%, transparent);
}

.tac__navigation {
  margin-top: 12px;
  display: flex;
  justify-content: flex-start;
}

/* Breathing ------------------------------------------------ */

.tac-breath {
  min-height: 390px;
  padding: 24px;
  display: grid;
  grid-template-columns: minmax(240px, 0.92fr) minmax(280px, 1.08fr);
  gap: 28px;
  align-items: center;
}

.tac-breath__visual {
  position: relative;
  min-height: 300px;
  display: grid;
  place-items: center;
}

.tac-breath__orbit {
  position: absolute;
  width: 250px;
  height: 250px;
  border: 1px solid color-mix(in srgb, var(--tac-accent) 18%, transparent);
  border-radius: 50%;
}

.tac-breath__orbit::before,
.tac-breath__orbit::after {
  position: absolute;
  content: "";
  border-radius: 50%;
}

.tac-breath__orbit::before {
  inset: 18px;
  border: 1px dashed color-mix(in srgb, var(--tac-secondary) 20%, transparent);
}

.tac-breath__orbit::after {
  width: 13px;
  height: 13px;
  top: 26px;
  right: 34px;
  background: var(--tac-warm);
  box-shadow: -155px 155px 0 color-mix(in srgb, var(--tac-secondary) 64%, white);
}

.tac-breath__orb {
  --tac-phase-duration: 1000ms;
  position: relative;
  z-index: 2;
  width: 164px;
  height: 164px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.84);
  border-radius: 50%;
  background:
    radial-gradient(circle at 36% 28%, rgba(255, 255, 255, 0.8) 0 8%, transparent 9%),
    linear-gradient(145deg, color-mix(in srgb, var(--tac-accent) 82%, white), var(--tac-accent-strong));
  color: #fff;
  box-shadow:
    0 24px 50px color-mix(in srgb, var(--tac-accent) 25%, transparent),
    inset 0 -12px 26px rgba(24, 55, 57, 0.14);
  transform: scale(0.82);
  transition: transform var(--tac-phase-duration) cubic-bezier(0.24, 0.74, 0.26, 1);
}

.tac-breath__glow {
  position: absolute;
  inset: -18px;
  z-index: -1;
  border-radius: 50%;
  background: color-mix(in srgb, var(--tac-accent) 20%, transparent);
  filter: blur(5px);
}

.tac[data-breath-phase="inhale"] .tac-breath__orb,
.tac[data-breath-phase="hold"] .tac-breath__orb {
  transform: scale(1.08);
}

.tac[data-breath-phase="exhale"] .tac-breath__orb {
  transform: scale(0.78);
}

.tac[data-breath-phase="complete"] .tac-breath__orb {
  transform: scale(0.9);
}

.tac-breath__phase {
  font-size: 1.25rem;
  font-weight: 820;
  letter-spacing: -0.02em;
}

.tac-breath__count {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.67rem;
  font-weight: 650;
}

.tac-breath__controls {
  padding: 22px;
  display: grid;
  gap: 16px;
  border: 1px solid rgba(255, 255, 255, 0.82);
  border-radius: 19px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 14px 30px rgba(42, 53, 72, 0.07);
  backdrop-filter: blur(8px);
}

.tac-breath__cycles {
  display: flex;
  gap: 8px;
}

.tac-breath__cycle-dot {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--tac-accent) 23%, transparent);
  border-radius: 50%;
  background: #fff;
  color: var(--tac-muted);
  font-size: 0.62rem;
  font-weight: 800;
}

.tac-breath__cycle-dot.is-current {
  border-color: var(--tac-accent);
  color: var(--tac-accent-strong);
  box-shadow: 0 0 0 4px var(--tac-accent-soft);
}

.tac-breath__cycle-dot.is-complete {
  border-color: var(--tac-accent-strong);
  background: var(--tac-accent-strong);
  color: #fff;
}

.tac-breath__timer {
  min-height: 44px;
  margin: 0;
  color: #394458;
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1.45;
}

/* Guided sequence ------------------------------------------ */

.tac-sequence {
  min-height: 390px;
  padding: 24px;
  display: grid;
  grid-template-columns: minmax(220px, 0.78fr) minmax(320px, 1.22fr);
  gap: 26px;
  align-items: center;
}

.tac-sequence__visual {
  position: relative;
  min-height: 310px;
  display: grid;
  place-items: center;
}

.tac-sequence__visual::before,
.tac-sequence__visual::after {
  position: absolute;
  content: "";
  border-radius: 50%;
}

.tac-sequence__visual::before {
  width: 238px;
  height: 238px;
  border: 1px dashed color-mix(in srgb, var(--tac-accent) 26%, transparent);
}

.tac-sequence__visual::after {
  width: 192px;
  height: 192px;
  border: 18px solid color-mix(in srgb, var(--tac-accent-soft) 55%, transparent);
}

.tac-sequence__pulse {
  position: relative;
  z-index: 2;
  width: 135px;
  height: 135px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 46% 54% 52% 48% / 56% 44% 56% 44%;
  background: linear-gradient(145deg, var(--tac-accent), var(--tac-accent-strong));
  color: #fff;
  box-shadow: 0 22px 40px color-mix(in srgb, var(--tac-accent) 24%, transparent);
}

.tac-sequence__pulse.is-pulsing {
  animation: tac-soft-pulse 380ms cubic-bezier(0.2, 0.78, 0.22, 1);
}

.tac-sequence__number {
  font-size: 2.3rem;
  line-height: 1;
}

.tac-sequence__visual-label {
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.83);
  font-size: 0.66rem;
  font-weight: 750;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.tac-sequence__markers {
  position: absolute;
  z-index: 3;
  bottom: 12px;
  display: flex;
  gap: 7px;
}

.tac-sequence__marker {
  width: 25px;
  height: 25px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--tac-accent) 22%, transparent);
  border-radius: 50%;
  background: #fff;
  color: var(--tac-muted);
  font-size: 0.57rem;
  font-weight: 800;
}

.tac-sequence__marker.is-current,
.tac-sequence__marker.is-complete {
  border-color: var(--tac-accent-strong);
  background: var(--tac-accent-strong);
  color: #fff;
}

.tac-sequence__workspace {
  min-width: 0;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.86);
  border-radius: 19px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 14px 30px rgba(38, 50, 67, 0.07);
}

.tac-sequence__eyebrow,
.tac-sequence__prompt,
.tac-sequence__help {
  margin: 0;
}

.tac-sequence__eyebrow {
  color: var(--tac-accent-strong);
  font-size: 0.61rem;
  font-weight: 840;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.tac-sequence__prompt {
  margin-top: 7px;
  font-size: 1.02rem;
  line-height: 1.3;
}

.tac-sequence__help {
  min-height: 38px;
  margin-top: 7px;
  color: var(--tac-muted);
  font-size: 0.72rem;
  line-height: 1.5;
}

.tac-sequence__counter {
  margin-top: 16px;
  display: grid;
  grid-template-columns: auto auto minmax(140px, 1fr);
  gap: 8px;
  align-items: center;
}

.tac-sequence__counter-value {
  min-width: 42px;
  color: var(--tac-accent-strong);
  font-size: 2rem;
  line-height: 1;
  text-align: right;
}

.tac-sequence__counter-target {
  color: var(--tac-muted);
  font-size: 0.7rem;
}

/* Reflection builder --------------------------------------- */

.tac-builder {
  padding: 21px;
}

.tac-builder__preview {
  padding: 13px 15px;
  display: grid;
  grid-template-columns: 31px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--tac-accent) 18%, transparent);
  border-radius: 14px;
  background: color-mix(in srgb, var(--tac-accent-soft) 52%, white);
}

.tac-builder__preview-icon {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--tac-accent-strong);
  color: #fff;
  font-size: 0.76rem;
}

.tac-builder__preview-copy {
  margin: 0;
  color: #344055;
  font-size: 0.75rem;
  font-weight: 660;
  line-height: 1.5;
}

.tac-builder__grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tac-builder__field {
  min-width: 0;
  margin: 0;
  padding: 14px;
  border: 1px solid rgba(48, 60, 81, 0.1);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.79);
}

.tac-builder__field:only-child {
  grid-column: 1 / -1;
}

.tac-builder__legend {
  width: 100%;
  padding: 0 0 11px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.tac-builder__field-number {
  width: 25px;
  height: 25px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: 9px;
  background: var(--tac-accent-soft);
  color: var(--tac-accent-strong);
  font-size: 0.62rem;
  font-weight: 850;
}

.tac-builder__legend-copy {
  min-width: 0;
  display: grid;
  gap: 3px;
}

.tac-builder__legend-copy strong {
  font-size: 0.77rem;
  line-height: 1.3;
}

.tac-builder__legend-copy small {
  color: var(--tac-muted);
  font-size: 0.64rem;
  line-height: 1.4;
}

.tac-builder__custom-label {
  margin-top: 10px;
  display: grid;
  gap: 6px;
  color: var(--tac-muted);
  font-size: 0.61rem;
  font-weight: 730;
}

/* Meaning link --------------------------------------------- */

.tac-link {
  padding: 22px;
}

.tac-link__visual {
  min-height: 104px;
  display: grid;
  grid-template-columns: minmax(120px, 1fr) minmax(65px, 0.5fr) minmax(120px, 1fr);
  gap: 10px;
  align-items: center;
}

.tac-link__node {
  min-height: 66px;
  padding: 11px 14px;
  display: grid;
  place-items: center;
  border: 1px dashed color-mix(in srgb, var(--tac-accent) 38%, transparent);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--tac-muted);
  font-size: 0.73rem;
  font-weight: 740;
  line-height: 1.3;
  text-align: center;
  transition: 240ms ease;
}

.tac-link__node.is-filled {
  border-style: solid;
  border-color: var(--tac-accent);
  background: var(--tac-accent-soft);
  color: var(--tac-accent-strong);
  box-shadow: 0 8px 17px color-mix(in srgb, var(--tac-accent) 12%, transparent);
}

.tac-link__line {
  position: relative;
  height: 2px;
  background: repeating-linear-gradient(90deg, color-mix(in srgb, var(--tac-accent) 38%, transparent) 0 8px, transparent 8px 13px);
}

.tac-link__mark {
  position: absolute;
  left: 50%;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #fff;
  color: var(--tac-accent);
  box-shadow: 0 5px 12px rgba(38, 49, 68, 0.1);
  transform: translateX(-50%);
}

.tac.has-link .tac-link__mark {
  background: var(--tac-accent-strong);
  color: #fff;
  animation: tac-link-pop 420ms cubic-bezier(0.2, 0.8, 0.22, 1);
}

.tac-link__selectors {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tac-link__group {
  min-width: 0;
  padding: 14px;
  border: 1px solid rgba(48, 61, 82, 0.1);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.74);
}

.tac-link__group-title,
.tac-link__group-prompt {
  margin: 0;
}

.tac-link__group-title {
  font-size: 0.78rem;
}

.tac-link__group-prompt {
  margin: 4px 0 10px;
  color: var(--tac-muted);
  font-size: 0.63rem;
  line-height: 1.4;
}

/* Balance board -------------------------------------------- */

.tac-balance {
  padding: 21px;
}

.tac-balance__focus-label,
.tac-timer__focus {
  display: grid;
  gap: 7px;
  color: #344055;
  font-size: 0.7rem;
  font-weight: 760;
}

.tac-balance__scale {
  position: relative;
  width: min(420px, 80%);
  height: 76px;
  margin: 15px auto 4px;
}

.tac-balance__beam {
  position: absolute;
  left: 8%;
  right: 8%;
  top: 25px;
  height: 5px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--tac-secondary), var(--tac-accent));
  box-shadow: 0 5px 11px rgba(40, 53, 71, 0.1);
  transform: rotate(0deg);
  transition: transform 380ms cubic-bezier(0.2, 0.76, 0.24, 1);
}

.tac-balance__pivot {
  position: absolute;
  left: 50%;
  top: 15px;
  z-index: 2;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--tac-accent-strong);
  color: #fff;
  transform: translateX(-50%);
}

.tac-balance__pivot::after {
  position: absolute;
  top: 24px;
  width: 0;
  height: 0;
  content: "";
  border-right: 24px solid transparent;
  border-bottom: 34px solid var(--tac-accent-soft);
  border-left: 24px solid transparent;
}

.tac-balance__pan {
  position: absolute;
  top: 43px;
  width: 46px;
  height: 27px;
  display: grid;
  place-items: center;
  border-radius: 0 0 24px 24px;
  background: color-mix(in srgb, var(--tac-accent-soft) 80%, white);
  color: var(--tac-accent-strong);
  font-size: 0.66rem;
  font-weight: 850;
}

.tac-balance__pan--left {
  left: 7%;
}

.tac-balance__pan--right {
  right: 7%;
}

.tac-balance__columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.tac-balance__column {
  min-width: 0;
  min-height: 190px;
  padding: 14px;
  border: 1px solid rgba(49, 61, 82, 0.1);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.77);
}

.tac-balance__column-title,
.tac-balance__column-prompt {
  margin: 0;
}

.tac-balance__column-title {
  color: var(--tac-accent-strong);
  font-size: 0.8rem;
}

.tac-balance__column-prompt {
  min-height: 35px;
  margin-top: 4px;
  color: var(--tac-muted);
  font-size: 0.63rem;
  line-height: 1.4;
}

.tac-balance__entry {
  margin-top: 9px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 7px;
}

.tac-balance__items {
  margin-top: 9px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tac-balance__item {
  max-width: 100%;
  padding: 6px 7px 6px 9px;
  display: inline-flex;
  gap: 6px;
  align-items: center;
  border: 1px solid color-mix(in srgb, var(--tac-accent) 22%, transparent);
  border-radius: 999px;
  background: var(--tac-accent-faint);
  color: #374257;
  font-size: 0.62rem;
  font-weight: 680;
  line-height: 1.3;
}

.tac-balance__remove {
  width: 23px;
  height: 23px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.8);
  color: var(--tac-accent-strong);
  cursor: pointer;
}

/* Action path ---------------------------------------------- */

.tac-action {
  padding: 21px;
}

.tac-action__path {
  height: 28px;
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) 24px;
  gap: 8px;
  align-items: center;
  color: var(--tac-accent-strong);
}

.tac-action__path-dot {
  width: 16px;
  height: 16px;
  border: 4px solid var(--tac-accent-soft);
  border-radius: 50%;
  background: var(--tac-accent-strong);
}

.tac-action__path-line {
  height: 2px;
  background: linear-gradient(90deg, var(--tac-accent), color-mix(in srgb, var(--tac-accent) 15%, transparent));
}

.tac-action__path-arrow {
  font-size: 1.1rem;
}

.tac-action__cards {
  margin-top: 8px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(245px, 1fr));
  gap: 10px;
}

.tac-action__card {
  min-width: 0;
  padding: 14px;
  border: 1px solid rgba(48, 61, 82, 0.1);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.78);
  transition: border-color 220ms ease, box-shadow 220ms ease;
}

.tac-action__card.is-filled {
  border-color: color-mix(in srgb, var(--tac-accent) 38%, transparent);
  box-shadow: 0 9px 18px color-mix(in srgb, var(--tac-accent) 10%, transparent);
}

.tac-action__card-title {
  margin: 0 0 10px;
  color: var(--tac-accent-strong);
  font-size: 0.78rem;
}

.tac-action__field + .tac-action__field,
.tac-action__when {
  margin-top: 10px;
}

.tac-action__label {
  display: grid;
  gap: 6px;
  color: #3d4659;
  font-size: 0.63rem;
  font-weight: 760;
  line-height: 1.35;
}

.tac-action__when {
  min-width: 0;
  padding: 0;
  border: 0;
}

.tac-action__field .tac-choice-grid,
.tac-action__when .tac-choice-grid {
  margin-top: 7px;
}

/* Timed focus ---------------------------------------------- */

.tac-timer {
  min-height: 390px;
  padding: 24px;
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(320px, 1.2fr);
  gap: 25px;
  align-items: center;
}

.tac-timer__visual {
  min-height: 300px;
  display: grid;
  place-items: center;
}

.tac-timer__dial {
  --tac-timer-progress: 0deg;
  position: relative;
  width: 214px;
  height: 214px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.96) 0 57%, transparent 58%),
    conic-gradient(var(--tac-accent-strong) var(--tac-timer-progress), var(--tac-accent-soft) 0);
  box-shadow: 0 22px 45px color-mix(in srgb, var(--tac-accent) 17%, transparent);
}

.tac-timer__dial::before,
.tac-timer__dial::after {
  position: absolute;
  content: "";
  border-radius: 50%;
}

.tac-timer__dial::before {
  inset: -17px;
  border: 1px dashed color-mix(in srgb, var(--tac-accent) 26%, transparent);
}

.tac-timer__dial::after {
  width: 12px;
  height: 12px;
  top: 9px;
  right: 44px;
  background: var(--tac-warm);
}

.tac-timer__time {
  color: var(--tac-accent-strong);
  font-size: 2.7rem;
  line-height: 1;
  letter-spacing: -0.055em;
}

.tac-timer__dial-label {
  margin-top: 7px;
  color: var(--tac-muted);
  font-size: 0.64rem;
  font-weight: 760;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.tac-timer__controls {
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.86);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 14px 30px rgba(39, 51, 69, 0.07);
}

.tac-timer__choice-label {
  margin: 14px 0 8px;
  color: #3d4659;
  font-size: 0.7rem;
  font-weight: 760;
}

.tac-timer__buttons {
  margin-top: 14px;
  display: flex;
  gap: 9px;
}

.tac.has-timer-finish .tac-timer__dial {
  animation: tac-timer-finish 600ms cubic-bezier(0.2, 0.78, 0.22, 1);
}

/* Support orbit -------------------------------------------- */

.tac-orbit {
  min-height: 430px;
  padding: 22px;
  display: grid;
  grid-template-columns: minmax(260px, 0.92fr) minmax(340px, 1.08fr);
  gap: 22px;
  align-items: center;
}

.tac-orbit__visual {
  position: relative;
  min-height: 340px;
  display: grid;
  place-items: center;
}

.tac-orbit__ring {
  position: absolute;
  border: 1px solid color-mix(in srgb, var(--tac-accent) 24%, transparent);
  border-radius: 50%;
}

.tac-orbit__ring--one {
  width: 255px;
  height: 255px;
}

.tac-orbit__ring--two {
  width: 190px;
  height: 190px;
  border-style: dashed;
  border-color: color-mix(in srgb, var(--tac-secondary) 22%, transparent);
}

.tac-orbit__center {
  position: relative;
  z-index: 3;
  width: 112px;
  height: 112px;
  padding: 13px;
  display: grid;
  place-items: center;
  border: 8px solid color-mix(in srgb, var(--tac-accent-soft) 82%, white);
  border-radius: 50%;
  background: linear-gradient(145deg, var(--tac-accent), var(--tac-accent-strong));
  color: #fff;
  box-shadow: 0 18px 35px color-mix(in srgb, var(--tac-accent) 22%, transparent);
  font-size: 0.72rem;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
}

.tac-orbit__tokens {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
}

.tac-orbit__token {
  position: absolute;
  max-width: 126px;
  min-height: 34px;
  padding: 7px 10px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--tac-accent) 29%, transparent);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--tac-accent-strong);
  box-shadow: 0 8px 16px rgba(38, 50, 68, 0.09);
  font-size: 0.58rem;
  font-weight: 740;
  line-height: 1.25;
  text-align: center;
  animation: tac-token-in 340ms cubic-bezier(0.2, 0.8, 0.22, 1) both;
}

.tac-orbit__token:nth-child(1) { left: 50%; top: 4%; transform: translateX(-50%); }
.tac-orbit__token:nth-child(2) { right: 1%; top: 24%; }
.tac-orbit__token:nth-child(3) { right: 4%; bottom: 20%; }
.tac-orbit__token:nth-child(4) { left: 50%; bottom: 3%; transform: translateX(-50%); }
.tac-orbit__token:nth-child(5) { left: 1%; bottom: 20%; }
.tac-orbit__token:nth-child(6) { left: 1%; top: 24%; }

.tac-orbit__selectors {
  min-width: 0;
  display: grid;
  gap: 9px;
}

.tac-orbit__group {
  min-width: 0;
  padding: 13px;
  border: 1px solid rgba(48, 61, 82, 0.1);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.77);
}

.tac-orbit__group-title,
.tac-orbit__group-prompt {
  margin: 0;
}

.tac-orbit__group-title {
  color: var(--tac-accent-strong);
  font-size: 0.75rem;
}

.tac-orbit__group-prompt {
  margin: 4px 0 8px;
  color: var(--tac-muted);
  font-size: 0.61rem;
  line-height: 1.4;
}

/* Animation ------------------------------------------------- */

@keyframes tac-completion-in {
  from { opacity: 0; transform: translateY(8px) scale(0.99); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes tac-soft-pulse {
  0% { transform: scale(1); }
  48% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

@keyframes tac-link-pop {
  0% { transform: translateX(-50%) scale(0.65) rotate(-25deg); }
  70% { transform: translateX(-50%) scale(1.12) rotate(5deg); }
  100% { transform: translateX(-50%) scale(1) rotate(0); }
}

@keyframes tac-timer-finish {
  0% { transform: scale(1); }
  45% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@keyframes tac-token-in {
  from { opacity: 0; scale: 0.7; }
  to { opacity: 1; scale: 1; }
}

/* Responsive ------------------------------------------------ */

@media screen and (max-width: 820px) {
  .tac-breath,
  .tac-sequence,
  .tac-timer,
  .tac-orbit {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .tac-breath__visual,
  .tac-sequence__visual,
  .tac-timer__visual {
    min-height: 245px;
  }

  .tac-orbit__visual {
    min-height: 320px;
  }

  .tac-builder__grid,
  .tac-link__selectors,
  .tac-balance__columns {
    grid-template-columns: 1fr;
  }
}

@media screen and (max-width: 600px) {
  .activity-card.has-activity-catalog.is-open .activity-card-frame,
  .activity-card.has-activity-catalog.is-open .activity-card-back {
    height: min(760px, 88dvh);
    max-height: 88dvh;
  }

  .tac__intro {
    grid-template-columns: 50px minmax(0, 1fr);
    gap: 11px;
    padding-bottom: 12px;
  }

  .tac__intro-motif {
    width: 48px;
    height: 48px;
    border-radius: 15px;
  }

  .tac__heading {
    font-size: 1.02rem;
  }

  .tac__instructions {
    margin-top: 5px;
    font-size: 0.72rem;
    line-height: 1.45;
  }

  .tac__tool-meta {
    grid-template-columns: 1fr;
    gap: 6px;
    margin-bottom: 10px;
  }

  .tac__tool-meta-item {
    padding: 8px 10px;
    display: grid;
    grid-template-columns: 75px minmax(0, 1fr);
    gap: 8px;
    align-items: start;
  }

  .tac__tool-meta-item strong {
    font-size: 0.66rem;
  }

  .tac__canvas {
    border-radius: 18px;
  }

  .tac-choice-grid,
  .tac-choice-grid--compact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
  }

  .tac-choice {
    min-height: 41px;
    padding: 7px 8px;
    border-radius: 10px;
    font-size: 0.62rem;
  }

  .tac-choice::before {
    width: 6px;
    height: 6px;
    margin-right: 6px;
  }

  .tac__completion {
    margin-top: 10px;
    padding: 12px;
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 10px;
  }

  .tac__completion-mark {
    width: 31px;
    height: 31px;
    font-size: 0.8rem;
  }

  .tac__summary {
    margin-top: 6px;
    font-size: 0.75rem;
  }

  .tac-breath,
  .tac-sequence,
  .tac-timer,
  .tac-orbit,
  .tac-builder,
  .tac-link,
  .tac-balance,
  .tac-action {
    min-height: 0;
    padding: 13px;
  }

  .tac-breath__visual,
  .tac-sequence__visual,
  .tac-timer__visual {
    min-height: 205px;
  }

  .tac-breath__orbit {
    width: 185px;
    height: 185px;
  }

  .tac-breath__orb {
    width: 126px;
    height: 126px;
  }

  .tac-breath__phase {
    font-size: 1rem;
  }

  .tac-breath__controls,
  .tac-sequence__workspace,
  .tac-timer__controls {
    padding: 13px;
    border-radius: 14px;
  }

  .tac-sequence__visual::before {
    width: 180px;
    height: 180px;
  }

  .tac-sequence__visual::after {
    width: 142px;
    height: 142px;
    border-width: 13px;
  }

  .tac-sequence__pulse {
    width: 102px;
    height: 102px;
  }

  .tac-sequence__number {
    font-size: 1.8rem;
  }

  .tac-sequence__markers {
    bottom: 3px;
  }

  .tac-sequence__counter {
    grid-template-columns: auto auto minmax(120px, 1fr);
  }

  .tac-builder__grid {
    gap: 8px;
  }

  .tac-builder__field,
  .tac-link__group,
  .tac-balance__column,
  .tac-action__card,
  .tac-orbit__group {
    padding: 11px;
  }

  .tac-link__visual {
    min-height: 80px;
    grid-template-columns: minmax(90px, 1fr) 44px minmax(90px, 1fr);
  }

  .tac-link__node {
    min-height: 56px;
    padding: 8px;
    font-size: 0.62rem;
  }

  .tac-balance__scale {
    height: 67px;
    margin-top: 9px;
  }

  .tac-balance__column {
    min-height: 150px;
  }

  .tac-action__cards {
    grid-template-columns: 1fr;
  }

  .tac-timer__dial {
    width: 168px;
    height: 168px;
  }

  .tac-timer__time {
    font-size: 2.1rem;
  }

  .tac-timer__buttons {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .tac-orbit {
    gap: 8px;
  }

  .tac-orbit__visual {
    min-height: 245px;
  }

  .tac-orbit__ring--one {
    width: 195px;
    height: 195px;
  }

  .tac-orbit__ring--two {
    width: 145px;
    height: 145px;
  }

  .tac-orbit__center {
    width: 90px;
    height: 90px;
    border-width: 6px;
    font-size: 0.62rem;
  }

  .tac-orbit__token {
    max-width: 105px;
    min-height: 29px;
    padding: 5px 7px;
    font-size: 0.52rem;
  }
}

@media screen and (max-width: 360px) {
  .tac-choice-grid,
  .tac-choice-grid--compact {
    grid-template-columns: 1fr;
  }

  .tac-sequence__counter {
    grid-template-columns: auto auto;
  }

  .tac-sequence__counter .tac__primary {
    grid-column: 1 / -1;
  }

  .tac__tool-meta-item {
    grid-template-columns: 1fr;
    gap: 3px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tac *,
  .tac *::before,
  .tac *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}