@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

@property --pulse-glow-opacity {
  syntax: '<number>';
  inherits: true;
  initial-value: 0;
}

:root {
  --background-dark: #121212;--surface-dark: #1E1E1E;--primary-blue: #0099ff;--primary-blue-dark: #001f33;--warning-orange: #FFB74D;--warning-orange-dark: #4a310c;--on-surface-light: #E1E1E1;--on-surface-medium: #8A8A8A;--skip-red: #b30000;--skip-red-dark: #590000;--neutral-gray: #5f6368;--error-red-bg: #4d1f1f;--editing-highlight-bg: #2a2a2a;
  --text-green-plan: #00cc00;
  --text-green-plan-dark: #003300;
  --text-green-plan-bright: #00cc00;
  --text-yellow-maintenance: #FFFF00;
  --text-olive-deviation: #bfff00;
  --routine-incomplete-bg: #22262e;
  --routine-incomplete-text: #6a7f9c;
  --routine-complete-bg: var(--primary-blue-dark);
  --routine-alternate-bg: #2a3a5e; /* Color for selected alternates */
  --routine-skipped-bg: #4a381d;
  --on-surface-darker: var(--neutral-gray);
  --track-gray: #2A2A2A;
  --hover-light-blue: #33adff;
  --hover-light-green: #81c784;

  /* Dynamic Timer Colors */
  --timer-active-color: var(--text-green-plan-bright);
  --timer-inactive-color: var(--text-green-plan-dark);
  --timer-complete-bg-color: var(--text-green-plan);
}
* {
  box-sizing: border-box;
}
html { scroll-behavior: smooth; }
body { margin: 0; font-family: 'Roboto', sans-serif; background-color: var(--background-dark); color: var(--on-surface-light); display: flex; justify-content: center; align-items: flex-start; min-height: 100vh; padding: 1rem; }
.hidden { display: none !important; }
.no-transition {
  transition: none !important;
}
.app-container { width: 100%; max-width: 400px; display: flex; flex-direction: column; gap: 1rem; }
.app-header { text-align: center; }
.app-header h1 { margin: 0 0 1rem; color: var(--on-surface-light); }
.day-selector-card {
    background-color: var(--surface-dark);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    border: 2px solid transparent;
}
.day-card-header,
.card-header {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    text-align: left;
}
.day-selector-summary-day, .day-selector-list-day, .time-selector-summary-label, .time-selector-list-label, .superset-list-label, .superset-log-prefix, .superset-log-dash {
    color: var(--on-surface-medium);
}
.text-plan { color: var(--text-green-plan); font-weight: 700; }
.text-deviation { color: var(--text-olive-deviation); font-weight: 700; }
.text-warning { color: var(--text-yellow-maintenance); font-weight: 700; }
.card { position: relative; background-color: var(--surface-dark); border-radius: 12px; padding: 1rem 1.5rem 1.5rem; box-shadow: 0 4px 12px rgba(0,0,0,0.2); text-align: center; display: flex; flex-direction: column; gap: 0.75rem; border: 2px solid transparent; transition: border-color 0.3s, opacity 0.3s, box-shadow 0.3s; }
.card.is-disabled-state {
    opacity: 0.6;
    pointer-events: none;
}
.app-selector {
    position: relative;
}
.app-selector.is-locked > summary,
.app-selector[disabled] > summary {
    cursor: not-allowed;
    border-color: var(--primary-blue-dark);
}
.app-selector.is-locked > summary .day-selector-summary-day,
.app-selector.is-locked > summary .time-selector-summary-label {
    color: var(--on-surface-medium);
}
.app-selector[disabled] > summary {
    color: var(--on-surface-medium);
}
.app-selector[disabled] > summary span:not([class*="text-"]) {
    color: var(--on-surface-medium);
}
.app-selector summary {
    width: 100%;
    padding: 1rem;
    cursor: pointer;
    list-style: none;
    font-size: 1.1rem;
    font-weight: 500;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    border-radius: 8px;
    background-color: var(--surface-dark);
    border: 2px solid var(--primary-blue);
    transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}
.app-selector.is-multiline summary {
    flex-direction: column;
    align-items: center;
    padding: 0.5rem 1rem;
    gap: 0.125rem;
}
.app-selector.is-multiline .superset-line-1 {
    font-size: 1.1rem;
    font-weight: 500;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}
.app-selector.is-multiline .superset-line-2 {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    font-size: 1.1rem;
    font-weight: 500;
}
.app-selector summary.is-dimmed {
  border-color: var(--primary-blue-dark);
}
.app-selector summary.is-dimmed .day-selector-summary-day,
.app-selector summary.is-dimmed .time-selector-summary-label,
.app-selector summary.is-dimmed .exercise-title {
  color: var(--on-surface-medium) !important;
}
.app-selector summary.is-dimmed .exercise-details {
  color: var(--on-surface-medium);
}
.app-selector summary::-webkit-details-marker { display: none; }
.app-selector[open] > summary {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}
.app-selector[open] > .options-list,
.app-selector[open] > .log-edit-panel {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}
.options-list, .log-edit-panel {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    position: absolute;
    width: 100%;
    left: 0;
    top: 100%;
    list-style: none;
    padding: 0.5rem;
    margin: 0;
    background-color: var(--surface-dark);
    border: 2px solid var(--primary-blue);
    border-top: none;
    border-radius: 0 0 8px 8px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.3);
}
.app-header .options-list, .card .options-list, #superset-confirmation-modal .options-list {
    z-index: 20;
}
.log-edit-panel {
    padding: 1rem;
    background-color: var(--surface-dark);
}
.options-list li {
    padding: 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    margin-bottom: 0.5rem;
    background-color: var(--background-dark);
    border: 2px solid var(--neutral-gray);
    transition: border-color 0.2s, background-color 0.2s;
    text-align: center;
    font-size: 1rem;
}
.options-list li span {
    font-weight: 500;
}
.options-list li:last-child {
    margin-bottom: 0;
}
.options-list li:hover {
    border-color: var(--hover-light-blue);
}
.options-list li.is-selected {
    border-color: var(--primary-blue);
}
.options-list li.is-superset-option {
    border-color: var(--text-yellow-maintenance);
}
.exercise-selector { margin-top: 0; }
.exercise-selector .options-list li.is-recommended {
    border-color: var(--text-green-plan);
}
.exercise-info-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
    width: 100%;
}
.exercise-title { margin: 0; }
#modal-exercise-info > .app-selector { margin-top: 0; }
#modal-exercise-info summary {
  cursor: default;
}

.exercise-meta-container { display: flex; flex-direction: column; gap: 0.25rem; }
.exercise-details { color: var(--on-surface-medium); font-size: 1rem; margin: 0; }
.data-highlight { font-weight: 500; }
.data-highlight.text-plan { color: var(--text-green-plan); }
.data-highlight.text-deviation { color: var(--text-olive-deviation); }
#input-area { margin-top: 0; }
.input-group { display: flex; gap: 1rem; margin: 0; }
.input-field { width: 100%; display: flex; flex-direction: column; gap: 0.5rem; }
.input-field > label {
    text-align: center;
}
.input-field label {
    color: var(--on-surface-medium);
}
.target-text {
    font-size: 1rem;
    color: var(--on-surface-medium);
}
#log-prompt-container {
    margin-top: 0;
}
#log-prompt-text {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
    color: #1C2931;
    opacity: 1;
    transition: color 0.3s ease-out, opacity 0.3s ease-out;
}
#active-card.is-any-timer-active:not(.is-prompting) #log-prompt-text {
    color: #1C2931;
}
#active-card.is-prompting #log-prompt-text {
    color: var(--primary-blue);
    opacity: var(--pulse-glow-opacity, 0);
}
.completion-actions { margin-top: 1.5rem; }
#rest-timer-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    gap: 0.5rem;
}
#rest-timer-block-split {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    gap: 1rem;
}
.timer-block-container {
    display: flex;
    gap: 1rem;
    width: 100%;
}
.timer-instance {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
}
#rest-timer-block-split .timer-instance {
    gap: 0.5rem;
}
.timer-instance .fuel-gauge-container {
    height: 48px;
}
.timer-instance .rest-timer-clock {
    font-size: 3.75rem;
    line-height: 1;
}
.fuel-gauge-container {
  display: flex;
  width: 100%;
  gap: 5px;
  height: 48px;
}
.fuel-gauge-segment {
    flex: 1;
    position: relative;
    background-color: var(--track-gray);
    border-radius: 8px;
    overflow: hidden;
    z-index: 2;
    transition: background-color 0.3s ease;
}
.fuel-gauge-segment.is-active-segment {
    overflow: visible;
    cursor: pointer;
    z-index: 10;
}

/* Universal Fuel Gauge Colors & Animations */
.timer-instance[data-timer-color="green"] { --timer-complete-bg-color: var(--text-green-plan); }
.timer-instance[data-timer-color="yellow"] { --timer-complete-bg-color: var(--text-yellow-maintenance); }
.timer-instance[data-timer-color="olive"] { --timer-complete-bg-color: var(--text-olive-deviation); }

.fuel-gauge-segment.is-complete {
    background-color: var(--timer-complete-bg-color);
}
.fuel-gauge-container.is-cooling-down .fuel-gauge-segment.is-complete {
  animation: fade-to-gray 3s ease-out forwards;
}
@keyframes fade-to-gray {
  from { background-color: var(--timer-complete-bg-color); }
  to { background-color: var(--track-gray); }
}

.segment-filler {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    left: 0;
    width: 0;
    background-color: var(--primary-blue);
    transition: width 1s linear;
}
#fuel-gauge-container .segment-filler {
    height: 24px; /* 50% of 48px */
}
#rest-timer-block-split .segment-filler {
    height: 24px; /* 50% of 48px */
}
.rest-timer-title {
  font-size: 1rem;
  color: var(--on-surface-darker);
  margin: 0;
  transition: color 0.2s;
}
.card.is-resting-left .rest-timer-title,
.card.is-resting-right .rest-timer-title,
.card.is-resting .rest-timer-title { 
    color: var(--on-surface-medium); 
}
#rest-timer-clock { font-size: 4.5rem; }
.rest-timer-clock { font-weight: 700; color: var(--timer-inactive-color); margin: 0; transition: color 0.2s; line-height: 1; }

.timer-instance[data-timer-color="green"] .rest-timer-clock { color: var(--text-green-plan-dark); }
.card.is-resting .timer-instance[data-side="single"][data-timer-color="green"] .rest-timer-clock,
.card.is-resting-left .timer-instance[data-side="left"][data-timer-color="green"] .rest-timer-clock,
.card.is-resting-right .timer-instance[data-side="right"][data-timer-color="green"] .rest-timer-clock {
    color: var(--text-green-plan-bright);
}
.timer-instance[data-timer-color="yellow"] .rest-timer-clock { color: rgba(255, 255, 0, 0.4); }
.card.is-resting .timer-instance[data-side="single"][data-timer-color="yellow"] .rest-timer-clock,
.card.is-resting-left .timer-instance[data-side="left"][data-timer-color="yellow"] .rest-timer-clock,
.card.is-resting-right .timer-instance[data-side="right"][data-timer-color="yellow"] .rest-timer-clock {
    color: var(--text-yellow-maintenance);
}
.timer-instance[data-timer-color="olive"] .rest-timer-clock { color: rgba(191, 255, 0, 0.5); }
.card.is-resting .timer-instance[data-side="single"][data-timer-color="olive"] .rest-timer-clock,
.card.is-resting-left .timer-instance[data-side="left"][data-timer-color="olive"] .rest-timer-clock,
.card.is-resting-right .timer-instance[data-side="right"][data-timer-color="olive"] .rest-timer-clock {
    color: var(--text-olive-deviation);
}

.stepper-input { display: flex; align-items: center; border: 1px solid var(--on-surface-medium); border-radius: 8px; background-color: var(--background-dark); overflow: hidden; transition: border-color 0.2s; }
.stepper-btn { background-color: transparent; color: var(--on-surface-light); border: none; width: 44px; height: 44px; font-size: 1.5rem; font-weight: 700; cursor: pointer; flex-shrink: 0; display: flex; justify-content: center; align-items: center; }
.stepper-btn:hover { background-color: var(--neutral-gray); }
.stepper-btn[data-amount^="-"] { padding-bottom: 5px; }
.input-field input[type="number"] { width: 100%; text-align: center; font-size: 1.2rem; font-weight: 700; padding: 0.75rem 0.25rem; border: none; border-left: 1px solid var(--on-surface-medium); border-right: 1px solid var(--on-surface-medium); background-color: transparent; color: var(--on-surface-light); -moz-appearance: textfield; }
.input-field input::-webkit-outer-spin-button, .input-field input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.button-group, .modal-buttons, .completion-actions { display: flex; flex-direction: column; gap: 0.75rem; }
.button-group-split {
    display: flex;
    gap: 1rem;
}
.button-group-split > .btn {
    flex: 1;
}
.modal-buttons { flex-direction: row; }
.btn { padding: 1rem; border: none; border-radius: 8px; font-size: 1rem; font-weight: 700; cursor: pointer; transition: background-color 0.2s, color 0.2s; width: 100%; }
.btn-primary { background-color: var(--primary-blue); color: var(--background-dark); }
.btn-primary:not(:disabled):hover { background-color: var(--hover-light-blue); }
.btn-success { background-color: var(--text-green-plan); color: var(--background-dark); }
.btn-success:not(:disabled):hover { background-color: #00dd00; }
.btn-warning { background-color: var(--warning-orange); color: var(--background-dark); }
.btn-warning:not(:disabled):hover { background-color: #ffca7a; }
.btn-danger { background-color: var(--skip-red); color: var(--background-dark); }
.btn-danger:not(:disabled):hover { background-color: #d90000; }
.btn-neutral { background-color: var(--neutral-gray); color: var(--on-surface-light); }
.btn-neutral:not(:disabled):hover { background-color: #70757a; }
.btn:disabled { cursor: not-allowed; color: var(--on-surface-medium); }
.btn-primary:disabled { background-color: var(--primary-blue-dark); }
.btn-success:disabled { background-color: var(--text-green-plan-dark); }
.btn-warning:disabled { background-color: var(--warning-orange-dark); }
.btn-danger:disabled { background-color: var(--skip-red-dark); }
.flash-error-bg { animation: flash-error-bg 2s ease-out; }
@keyframes flash-error-bg {
  0%, 100% { background-color: initial; }
  16.6%, 50%, 83.3% { background-color: var(--error-red-bg); }
  33.3%, 66.6% { background-color: initial; }
}
.workout-footer { background-color: var(--surface-dark); border-radius: 12px; padding: 1rem 1.5rem; }
.workout-footer h2 { margin: 0 0 0.5rem; text-align: left; font-size: 1.25rem; font-weight: 700; }
.workout-items { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.25rem; }

/* UNIFIED LAYOUT MODEL: PART 1 - Default State */
.workout-item { 
  position: relative;
  border-radius: 8px; 
  padding: 0.75rem 1rem; 
  transition: background-color 0.2s, border-color 0.2s; 
  border: 2px solid transparent; 
  background-color: var(--routine-incomplete-bg); 
  cursor: default; 
  display: flex;
  align-items: center;
}

.workout-item.is-complete { border-color: var(--primary-blue); cursor: pointer; }
.workout-item.is-skipped { border-color: var(--warning-orange); cursor: pointer; }
.workout-item.is-current {
  cursor: pointer;
  z-index: 1;
}
.workout-item.is-complete.is-dimmed {
  border-color: var(--primary-blue-dark);
}
.workout-item.is-skipped.is-dimmed {
  border-color: var(--warning-orange-dark);
}

.workout-item.is-editing {
    position: relative;
    z-index: 5;
    padding: 0;
    border: none;
    min-height: auto;
}
.workout-item.is-editing > * {
    visibility: hidden;
}
.workout-item .log-editor {
    visibility: visible;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* UNIFIED LAYOUT MODEL: PART 2 - Editor Summary State */
.workout-item.is-editing .log-editor summary {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    height: 100%;
    width: 100%;
    font: inherit;
    text-align: inherit;
    border: 2px solid;
    border-radius: 8px;
    list-style: none;
    cursor: pointer;
    transition: border-radius 0.2s ease;
    margin: 0;
    position: relative;
    z-index: 2;
}
.workout-item.is-editing .log-editor[open] > summary {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}
.workout-item.is-editing .log-editor summary::-webkit-details-marker {
    display: none;
}
.log-content-wrapper {
  width: 100%;
}
.log-row { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    width: 100%;
}
.log-content-wrapper > .log-row:first-child {
    margin-bottom: 0.375rem;
}
.workout-item .log-exercise-name { 
    font-weight: 500; 
    white-space: nowrap; 
    overflow: hidden; 
    text-overflow: ellipsis; 
    padding-right: 1rem;
    min-width: 0;
}
.log-timestamp { font-size: 0.75rem; color: var(--on-surface-medium); white-space: nowrap; flex-shrink: 0; }
.log-timestamp.log-timestamp-skipped-rest {
  color: var(--skip-red);
  font-weight: 700;
}
.log-set-info-wrapper {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    padding-right: 1rem;
}
.workout-item .log-set-info { font-size: 0.9rem; color: var(--on-surface-medium); }
.workout-item .log-meta { font-size: 0.9rem; font-weight: 500; color: var(--on-surface-light); }
.workout-item .log-meta.log-meta-skipped { color: var(--warning-orange); font-weight: 700; }
.workout-placeholder { color: var(--on-surface-medium); text-align: center; margin: 1rem 0; }

/* MODAL STYLES */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.7); display: flex; align-items: center; justify-content: center; z-index: 1000; overflow-y: auto; }
.modal-content { background: var(--surface-dark); padding: 1.5rem; border-radius: 12px; box-shadow: 0 5px 15px rgba(0,0,0,0.3); width: 90%; max-width: 375px; text-align: center; display: flex; flex-direction: column; gap: 0.75rem; margin: auto; }
.modal-content.has-compact-padding { padding-top: 1rem; gap: 0.5rem; }
.modal-content.has-compact-padding .modal-buttons { margin-top: 0.75rem; }
#modal-exercise-info { display: flex; flex-direction: column; gap: 1rem; }
#modal-exercise-info summary {
  cursor: default;
}

#modal-prompt-text, #day-change-modal-prompt-text, #time-change-modal-prompt-text, .modal-to-label, #superset-modal-prompt-text { font-size: 1.1rem; }
#day-change-modal-prompt-text, #time-change-modal-prompt-text, #superset-modal-prompt-text { margin-bottom: 0.25rem; }
.modal-to-label {
    color: var(--on-surface-light);
    margin: 0.75rem 0 0.25rem;
}
.modal-preview-box {
    background-color: var(--background-dark);
    border-radius: 8px;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 500;
}
.modal-preview-box:has(.app-selector) {
    padding: 0;
    background: transparent;
}
.modal-preview-box .app-selector {
    padding: 0;
    background: none;
}
.modal-preview-box .app-selector summary {
    font-size: 1.1rem;
}
.modal-preview-box .app-selector summary.flash-error-bg {
    animation: flash-error-bg 2s ease-out;
}
.modal-preview-box .day-selector-summary-day {
    color: var(--on-surface-medium);
}
.modal-preview-meta {
    display: block;
    font-size: 0.9rem;
    color: var(--on-surface-medium);
    margin-top: 0.5rem;
}

/* LOG EDITING STYLES */
.log-edit-controls { display: flex; flex-direction: column; gap: 1rem; width: 100%; }
.log-edit-inputs { display: flex; gap: 1rem; }
.log-edit-inputs .input-field { gap: 0.25rem; flex: 1; }
.log-edit-inputs .input-field label { font-size: 0.9rem; white-space: nowrap; }
.log-edit-inputs .stepper-input { height: 40px; }
.log-edit-inputs .stepper-btn { width: 40px; }
.log-edit-inputs input { font-size: 1rem; }
.log-edit-actions { display: flex; gap: 0.5rem; }
.log-edit-actions .btn { padding: 0.5rem; font-size: 0.9rem; }

/* CRITICAL FIX: Highly specific rule to ensure panel is behind summary */
.workout-item.is-editing .log-editor > .log-edit-panel {
    z-index: 1;
}

/* WORKOUT COMPLETION ANIMATION */
.completion-animation-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 48px; 
}
.completion-animation-container .exercise-title {
  position: relative;
  z-index: 10;
  cursor: pointer;
}
.plate {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--track-gray);
  border: 2px solid var(--primary-blue);
  box-shadow: 0 0 8px var(--primary-blue);
  opacity: 0;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.plate-hole {
  width: 7px;
  height: 7px;
  background-color: #000;
  border: 1px solid var(--primary-blue);
  border-radius: 50%;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
}
.plate-number {
  position: absolute;
  color: var(--text-green-plan);
  font-weight: 700;
  font-size: 1.2rem;
  line-height: 1;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
}
.plate-number-left {
  left: 6px;
}
.plate-number-right {
  right: 6px;
}

.plate-num-3 { z-index: 1; animation-duration: 0.4s; animation-delay: 1.0s; animation-timing-function: ease-out; animation-fill-mode: forwards; }
.plate-num-2 { z-index: 2; animation-duration: 0.4s; animation-delay: 2.0s; animation-timing-function: ease-out; animation-fill-mode: forwards; }
.plate-num-1 { z-index: 3; animation-duration: 0.4s; animation-delay: 3.0s; animation-timing-function: ease-out; animation-fill-mode: forwards; }

.plate-left.plate-num-3 { animation-name: stack-left-outer; }
.plate-left.plate-num-2 { animation-name: stack-left-middle; }
.plate-left.plate-num-1 { animation-name: stack-left-inner; }

.plate-right.plate-num-3 { animation-name: stack-right-outer; }
.plate-right.plate-num-2 { animation-name: stack-right-middle; }
.plate-right.plate-num-1 { animation-name: stack-right-inner; }

/* ANIMATIONS */
.app-container.is-animating-pulse {
  animation: sync-pulse-opacity 4s linear infinite;
}
@keyframes sync-pulse-opacity {
  0%, 100% {
    --pulse-glow-opacity: 0;
  }
  50% {
    --pulse-glow-opacity: 1;
  }
}
#active-card::after,
.workout-item.is-current::after,
.fuel-gauge-segment.is-active-segment::after {
  content: '';
  position: absolute;
  box-shadow: 0 0 10px 2px var(--primary-blue);
  opacity: 0;
  pointer-events: none;
}
#active-card::after {
  top: -2px; left: -2px; right: -2px; bottom: -2px;
  border-radius: 14px; /* card's 12px + 2px */
  transition: opacity 0.3s ease-out;
  z-index: -1;
}
#active-card.is-prompting::after {
    opacity: var(--pulse-glow-opacity, 0);
}
.workout-item.is-current::after,
.fuel-gauge-segment.is-active-segment::after {
    opacity: var(--pulse-glow-opacity, 0);
}
.workout-item.is-current::after {
  top: -2px; 
  left: -2px; 
  right: -2px; 
  bottom: -2px;
  border-radius: 10px;
  z-index: -1;
}
.fuel-gauge-segment.is-active-segment::after {
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: inherit;
}
.flash-blue-glow {
  animation: flash-glow 2s ease-out;
}
@keyframes flash-glow {
  0%, 33.3%, 66.6%, 100% { box-shadow: 0 0 10px 2px transparent; }
  16.6%, 50%, 83.3% { box-shadow: 0 0 10px 2px var(--primary-blue); }
}

@keyframes stack-left-outer {
  from { left: 50%; transform: translate(-50%, -50%); opacity: 0; }
  to   { left: 0; transform: translate(0, -50%); opacity: 1; }
}
@keyframes stack-left-middle {
  from { left: 50%; transform: translate(-50%, -50%); opacity: 0; }
  to   { left: 0; transform: translate(5px, -50%); opacity: 1; }
}
@keyframes stack-left-inner {
  from { left: 50%; transform: translate(-50%, -50%); opacity: 1; }
  to   { left: 0; transform: translate(10px, -50%); opacity: 1; }
}
@keyframes stack-right-outer {
  from { left: 50%; transform: translate(-50%, -50%); opacity: 0; }
  to   { left: 100%; transform: translate(-100%, -50%); opacity: 1; }
}
@keyframes stack-right-middle {
  from { left: 50%; transform: translate(-50%, -50%); opacity: 0; }
  to   { left: 100%; transform: translate(calc(-100% - 5px), -50%); opacity: 1; }
}
@keyframes stack-right-inner {
  from { left: 50%; transform: translate(-50%, -50%); opacity: 1; }
  to   { left: 100%; transform: translate(calc(-100% - 10px), -50%); opacity: 1; }
}