:root {
    /* Dark theme (default) */
    --primary-color: #f7931a;
    --header-color: #fff;
    --text-color: #e0e0e0;
    --light-text-color: #959595;
    --dark-text-color: #1e1e1e;
    --background-color: #1e1e1e;
    --background-secondary: #2c2c2c;
    --background-secondary-hover: #3c3c3c;
    --border-color: #444;
    --input-color: #1e1e1e;
    --button-hover-color: #ffc451;
}

/* Light theme */
[data-theme="light"] {
    --primary-color: #f7931a;
    --header-color: black;
    --text-color: #1e1e1e;
    --light-text-color: #656565;
    --dark-text-color: #e0e0e0;
    --background-color: #ffffff;
    --background-secondary: #f3f3f3;
    --background-secondary-hover: #e3e3e3;
    --border-color: #ddd;
    --button-hover-color: #ffc451;
}

/* Pink theme */
[data-theme="pink"] {
    --primary-color: pink;
    --header-color: #fff;
    --text-color: #e0e0e0;
    --light-text-color: #959595;
    --dark-text-color: #1e1e1e;
    --background-color: #1e1e1e;
    --background-secondary: #2c2c2c;
    --background-secondary-hover: #3c3c3c;
    --border-color: pink;
    --button-hover-color: #FFDBE2;
}

#themePreference {
    background-color: var(--background-secondary);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
}

#themePreference:focus {
    outline: none;
    border-color: var(--primary-color);
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px;
    background-color: var(--background-color);
    color: var(--text-color);
}

body:has(.login-view-container) {
    background-color: black;
}

@media screen and (min-width: 768px) {
    body {
        background-color: black;
    }
}

.container {
    max-width: 800px;
    margin: auto;
    background: var(--background-color);
    padding: 20px 20px 70px;
    border-radius: 8px;
}

.login-view-container {
    width: 100%;
    max-width: 400px;
    padding: 40px;
    margin: 20px auto;
    position: absolute;
    top: 40%;
    left: 50%;
    transform: translate(-50%, -50%);
}

@media screen and (max-height: 600px) {
    .login-view-container {
        position: static;
        transform: none;
        margin: 20px auto;
    }
}

@media screen and (max-width: 480px) {
    .login-view-container {
        padding: 20px;
    }
}

h1 {
    text-align: center;
    color: var(--header-color);
    font-size: 24px;
}

/* Form Elements */
form {
    margin-bottom: 20px;
}

input,
textarea,
select {
    font-size: 16px;
    width: 100%;
    padding: 8px;
    margin-bottom: 10px;
    border: 1px solid #444;
    border-radius: 4px;
    background-color: var(--background-secondary);
    color: var(--text-color);
}

button {
    background: var(--primary-color);
    color: #1e1e1e;
    font-size: 16px;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

button:hover, .button-like:hover {
    background: var(--button-hover-color);
}

button.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#loginForm button {
    color: #1e1e1e;
    width: 100%;
    display: block;
    margin: 10px auto 0;
    padding: 10px;
    box-sizing: border-box;
}

#loginForm input[type="text"],
#loginForm input[type="password"] {
    width: 100%;
    box-sizing: border-box;
}

select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Scrollbar Styles */
select {
    scrollbar-width: thin;
    scrollbar-color: #444 var(--background-secondary);
}

select::-webkit-scrollbar {
    width: 12px;
}

select::-webkit-scrollbar-track {
    background: var(--background-secondary);
}

select::-webkit-scrollbar-thumb {
    background-color: #444;
    border-radius: 4px;
    border: 1px solid var(--background-secondary);
}

select::-webkit-scrollbar-thumb:hover {
    background-color: #555;
}

/* Workout Log */
#workoutLog {
    border-top: 1px solid #444;
    padding-top: 20px;
    margin-bottom: 30px;
}

.workout-entry {
    background: var(--background-secondary);
    border: 1px solid #444;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 4px;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        transform: translateY(0);
    }
    to {
        transform: translateY(100%);
    }
}

.exercise-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    width: 100%;
}

.exercise-title {
    margin: 0;
    flex: 1;
}

.add-set-button {
    padding: 0.25rem 0.5rem;
    background: none;
    color: var(--light-text-color);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.add-set-button:hover {
    color: var(--primary-color);
    background: none;
}

.add-set-button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.modal-content.note-modal {
    height: auto;
    max-height: 80vh;
    width: 100vw;
    max-width: 100%;
    position: fixed;
    bottom: 0;
    left: 0;
    animation: slideUp 0.3s ease-out;
    display: flex;
    flex-direction: column;
}

.modal-content.note-modal.closing {
    animation: slideDown 0.3s ease-in;
}

.note-modal .modal-header {
    padding: 0;
}

.note-set {
    margin-right: 0; /* Remove right margin to avoid excess space */
    background: none;
    border: none;
    cursor: pointer;
    color: var(--light-text-color);
}

.note-set:hover {
    color: var(--primary-color);
    background: none;
}

.note-set.has-note {
    color: var(--primary-color);
}

.cancel-button, .save-button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    color: var(--primary-color);
}

.cancel-button:hover, .save-button:hover {
    color: color-mix(in srgb, var(--button-hover-color) 90%, white);
    background: none;
}

#noteText {
    flex-grow: 1;
    min-height: 250px;
    max-height: calc(80vh - 100px);
    overflow-y: auto;
    width: 100%;
    border: 1px solid #333;
    border-radius: 4px;
    font-size: 16px;
    resize: vertical;
    background-color: var(--background-secondary);
    color: var(--text-color);
    margin: 10px 0; 
    outline: none;
    box-sizing: border-box;
}

@media screen and (max-width: 480px) {
    .modal-content.note-modal {
        height: auto;
        max-height: 100%;
    }

    #noteText {
        max-height: calc(100vh - 150px);
    }
}

/* Timer */
#workoutTimer {
    position: absolute;
    top: 5px;
    left: 10px;
    z-index: 100;
    cursor: pointer;
    padding: 2px 0px 0px 8px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: transform 0.2s;
}

#workoutTimer:hover {
    transform: scale(1.05);
}

#workoutTimer.active {
    color: var(--primary-color);
}

.timer-modal {
    max-width: 300px;
}

.time-input {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 20px 0;
}

.time-input input {
    width: 60px;
    height: 40px;
    text-align: center;
    font-size: 1.2em;
    background-color: var(--background-secondary);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.timer-controls {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.timer-controls .primary-button {
    background-color: var(--primary-color);
    color: #1e1e1e;
}

.timer-controls .secondary-button {
    background-color: var(--background-secondary);
    color: var(--text-color);
}

.time-display {
    font-size: 48px;
    font-family: monospace;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin: 20px 0;
    user-select: none;
}

.time-input .time-unit {
    font-size: 48px;
    background-color: var(--background-secondary);
    padding: 10px;
    border-radius: 8px;
    min-width: 60px;
    text-align: center;
    cursor: text;
}

.time-input .time-unit:focus {
    outline: 2px solid var(--primary-color);
    background-color: var(--background-color);
}

.time-input .time-separator {
    font-weight: bold;
    color: var(--text-color);
}

/* Calendar */
#calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
    margin-bottom: 20px;
}

.calendar-day-label {
    text-align: center;
    padding: 5px;
    background: var(--background-secondary);
    border-radius: 4px;
}

.calendar-day {
    position: relative;
    padding: 10px 10px 14px;
    text-align: center;
    background: var(--background-secondary);
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 30px;
}

.calendar-day:hover {
    background: var(--background-secondary-hover);
}

.calendar-day.current-day  {
    background: hsl(33deg 93% 54% / 10%);
    color: white;
}

.calendar-day.blank {
    background: none;
    cursor: default;
}

.calendar-day.selected {
    outline: 2px solid var(--primary-color);
    color: var(--primary-color);
    font-weight: bold;
}

#monthYearDisplay {
    text-align: center;
    font-size: 1.2em;
    margin-bottom: 10px;
    font-weight: bold;
    color: var(--header-color);
}

/* Exercise Groups */
.exercise-group {
    margin-bottom: 20px;
    padding: 10px;
    background-color: var(--background-secondary);
    border-radius: 5px;
}

.exercise-group h3 {
    margin-top: 0;
    margin-left: 20px;
    color: var(--header-color);
    cursor: pointer;
}

.exercise-group h3:hover {
    text-decoration: underline;
}

.exercise-group ul {
    list-style-type: none;
    padding-left: 0.5em;
    margin-bottom: 0;
}

.exercise-group li {
    margin-bottom: 5px;
    display: flex;
    align-items: center;
}

.exercise-group li span {
    margin-right: 10px;
}

.exercise-group li .set-info {
    margin-left: 33%;
}

.pr-badge {
    display: inline-flex;
    align-items: center;
    margin-right: 0px;
    color: var(--primary-color);
}

#exerciseHistory .note-set {
    margin-left: -20px;
    margin-right: 10px;
}

.pr-badge i {
    font-size: 14px;
    animation: star-pulse 1s ease-in-out;
}

@keyframes star-pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.3);
    }
    100% {
        transform: scale(1);
    }
}

@media screen and (max-width: 480px), (display-mode: standalone) {
    .exercise-group li {
    }

    .exercise-group li .set-info {
        margin-right: 25px;
        margin-left: 54px;
    }

    .exercise-group li .set-info:has(.distance-info) {
        margin-left: 35px;
        margin-right: 0;
    }

}

.edit-set,
.delete-set {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--light-text-color);
    padding: 10px;
    margin-left: 5px;
}

.edit-set:hover,
.delete-set:hover {
    color: var(--primary-color);
    background: none;
}

.edit-set i,
.delete-set i {
    font-size: 16px;
}

.set-item {
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.set-item.editing {
    background-color: var(--background-secondary-hover);
}

@media (hover: hover) {
    .set-item:hover {
        background-color: var(--background-secondary-hover);
    }
}

.set-info strong,
.history-date-group strong {
    font-weight: bold;
    font-size: 1.2em;
}

@media screen and (max-width: 480px) {
    .history-date-group strong {
        font-size: 1em;
    }
}

#clearForm.delete-mode {
    background-color: #B82D28;
    color: var(--text-color);
}

#clearForm.delete-mode:hover {
    background-color: #D4403A;
    color: var(--text-color);
}

.set-info small.unit, 
.history-date-group small.unit {
    font-size: 0.8em;
    color: var(--light-text-color);
    margin-left: 0.35em;
}

.set-info .distance-info,
.set-info .duration-info,
.set-info .weight-info,
.set-info .reps-info {
    display: inline-block;
    margin-right: 25px;
}

@media screen and (max-width: 480px), (display-mode: standalone) {
    .exercise-group li {
        margin-bottom: 0px;
    }

    .set-info .distance-info,
    .set-info .duration-info {
        margin-right: 25px;
    }

    .set-info .weight-info,
    .set-info .reps-info {
        margin-right: 25px;
    }
}

.input-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
}

.input-group label {
    margin-bottom: 10px;
    font-weight: bold;
    text-align: center;
}

.input-control {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 40px;
}

.input-control input[type="number"] {
    width: 80px;
    text-align: center;
    border: 1px solid #444;
    background-color: var(--background-color);
    color: #fff;
    padding: 0;
    margin: 0 5px;
    height: 100%;
    appearance: textfield;
    -moz-appearance: textfield;
}

.input-control input[type="number"]::-webkit-inner-spin-button,
.input-control input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.input-control button {
    width: 40px;
    height: 100%;
    background-color: #333;
    color: #fff;
    border: 1px solid #444;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.input-control button:hover {
    background-color: #444;
}

/* Form Buttons */
.form-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}

.form-buttons button {
    flex: 1;
    margin: 0 5px;
}

button[type=submit] {
    color: #1e1e1e;
    font-weight: bold;
    width: 100%;
}

#clearForm {
    background-color: var(--background-secondary);
    color: var(--text-color);
    border: 1px solid #444;
}

#clearForm:hover {
    background-color: var(--background-secondary-hover);
}

/* Icons */
.fa-bitcoin:before {
    color: var(--primary-color);
}

.workout-indicator-container {
    position: absolute;
    bottom: 4px;
    left: 4px;
    right: 4px;
    height: 4px;
    display: flex;
    overflow: hidden;
    border-radius: 2px;
}

.workout-indicator {
    height: 100%;
    flex-grow: 1;
}

.workout-indicator.gradient {
    width: 100%;
    border-radius: 2px;
    animation: shimmer 3s infinite linear;
    background-size: 200% 100% !important;
}

@keyframes shimmer {
    0% {
        background-position: 100% 0;
    }
    100% {
        background-position: -100% 0;
    }
}

/* Navigation */
#calendarControls,
#dateNavigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

#calendarControls button,
#dateNavigation button {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-color);
}

#calendarControls button:hover,
#dateNavigation button:hover {
    color: var(--primary-color);
}

#monthYearDisplay {
    color: var(--text-color);
    font-size: 18px;
    font-weight: bold;
}

#bottomNav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--background-color);
    display: flex;
    justify-content: space-around;
    padding: 8px 0;
    padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    border-top: 1px solid color-mix(in srgb, var(--border-color) 50%, transparent);
    box-shadow: 0 -4px 6px -4px color-mix(in srgb, var(--border-color) 20%, transparent);
}

#bottomNav button {
    background: none;
    border: none;
    font-size: 14px;
    cursor: pointer;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: center;
}

@supports (padding: max(0px)) {
    #bottomNav {
        padding-bottom: max(20px, env(safe-area-inset-bottom, 20px));
    }
}

/* Additional padding for mobile devices */
@media screen and (max-width: 767px) {
    #bottomNav {
        padding-bottom: max(25px, env(safe-area-inset-bottom, 25px));
    }

    #bottomNav button {
        padding-bottom: 15px;
    }
}

/* Specific adjustments for iOS PWA */
@media screen and (max-width: 767px) and (display-mode: standalone) {
    #bottomNav {
        padding-bottom: max(35px, env(safe-area-inset-bottom, 35px));
    }

    #bottomNav button {
        padding-bottom: 20px;
    }
}

#bottomNav button.active {
    color: var(--primary-color);
}

#bottomNav button i {
    font-size: 20px;
    margin-bottom: 3px;
}

/* User Profile */
#userProfile {
    position: absolute;
    top: 5px;
    right: 10px;
    display: flex;
    align-items: center;
    color: var(--text-color);
}

#userProfile i {
    margin-right: 5px;
}

#username {
    margin-right: 10px;
    font-weight: bold;
}

/* Auth Sections */
#authSection,
#registerSection {
    max-width: 300px;
    margin: 0 auto;
}

#authSection p,
#registerSection p {
    text-align: center;
    margin-top: 20px;
}

#authSection a,
#registerSection a {
    color: var(--primary-color);
    text-decoration: none;
}

#authSection a:hover,
#registerSection a:hover {
    text-decoration: underline;
}

/* Modal */
.modal {
    display: flex;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--background-color);
    border-radius: 10px;
    width: 90%;
    height: 80%;
    max-width: 500px;
    max-height: 500px;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    padding: 10px;
    box-sizing: border-box;
}

.modal-header {
    position: sticky;
    top: 0;
    background-color: var(--background-color);
    padding: 0px 20px;
    border-bottom: 1px solid #333;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media screen and (max-width: 480px) {
    .modal-header h2 {
        font-size: 1.15em;
    }
}   

#exerciseHistory {
    padding: 0 20px 20px;
    overflow-y: auto;
}

.history-date-group {
    margin-bottom: 15px;
}

.history-date-group h3 {
    margin-bottom: 5px;
    font-weight: normal;
}

@media screen and (max-width: 480px) {
    .history-date-group h3 {
        font-size: 0.9em;
    }
}

.history-date-group ul {
    list-style-type: none;
    padding-left: 20px;
}

.history-date-group .distance-info,
.history-date-group .duration-info,
.history-date-group .weight-info,
.history-date-group .reps-info {
    display: inline-block;
    margin-right: 20px;
}

.close {
    color: var(--light-text-color);
    background-color: transparent;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover,
.close:focus {
    background-color: transparent;
    color: #fff;
    text-decoration: none;
    cursor: pointer;
}

/* Progress Chart */
#progressChart {
    width: 100%;
    max-height: 500px;
}

.filter-buttons {
    margin-bottom: 15px;
    display: none;
    justify-content: center;
}

.filter-buttons button {
    background: var(--background-secondary);
    color: var(--text-color);
    border: 1px solid #656565;
    padding: 5px 10px;
    margin-right: 5px;
    cursor: pointer;
    border-radius: 4px;
}

.filter-buttons button:hover,
.filter-buttons button.active {
    background: #444;
    color: #fff;
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.data-table th {
    font-weight: bold;
}

/* Settings View */
#settingsView {
    padding: 20px;
}

#settingsView h2 {
    margin-bottom: 20px;
}

#settingsView button {
    background-color: var(--background-secondary);
    color: var(--text-color);
    border: 1px solid #444;
    width: 100%;
    padding: 10px 20px;
    margin-top: 10px;
    cursor: pointer;
}

#settingsView button:hover {
    background-color: #444;
}

#settingsView #signOut{
    background-color: var(--primary-color);
    color: #1e1e1e;
}

#settingsView #signOut:hover {
    background-color: #ffc451;
}

.settings-group {
    background-color: var(--background-secondary);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.settings-group h3 {
    color: var(--header-color);
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.2em;
}

.settings-option {
    margin-bottom: 20px;
}

.settings-option:last-child {
    margin-bottom: 0;
}

.settings-option h4 {
    color: var(--text-color);
    margin-bottom: 10px;
    font-size: 1em;
}

.settings-option button {
    font-weight: bold;
}

.import-export-controls {
    display: flex;
    gap: 10px;
}

.import-export-controls button,
#changePasswordBtn,
#deleteAccountBtn {
    flex: 1;
}

#unitPreference,
#themePreference {
    width: 100%;
    padding: 10px;
    background-color: var(--background-color);
    color: var(--text-color);
    border: 1px solid #444;
    border-radius: 4px;
}

#changePasswordModal.modal,
#resetPasswordModal.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}

#changePasswordModal .modal-content,
#resetPasswordModal .modal-content {
    background-color: var(--background-secondary);
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #444;
    width: 100%;
    max-width: 400px;
    border-radius: 8px;
    box-sizing: border-box;
}

#passwordChangeForm,
#resetPasswordForm {
    width: 100%;
}

#passwordChangeForm input[type="password"],
#resetPasswordForm input[type="password"],
#resetPasswordForm input[type="text"] {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #444;
    border-radius: 4px;
    background-color: var(--background-color);
    color: var(--text-color);
    box-sizing: border-box;
}

#passwordChangeForm button {
    width: 100%;
    padding: 10px;
    background-color: var(--primary-color);
    color: #202020;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    box-sizing: border-box;
}

#passwordChangeForm button:hover {
    background-color: #e87b0c;
}

#secretKeyModal,
#secretKeyDisplayModal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.4);
}

#secretKeyModal .modal-content,
#secretKeyDisplayModal .modal-content {
    position: relative;
    background-color: var(--background-secondary);
    font-size: 16px;
    letter-spacing: 0.5px;
    margin: 15% auto;
    padding: 20px;
    border: 1px solid #444;
    width: 100%;
    max-width: 600px;
    border-radius: 8px;
    box-sizing: border-box;
    overflow-wrap: break-word;
    word-wrap: break-word;
    hyphens: auto;
}

#secretKeyModal .close,
#secretKeyDisplayModal .close {
    position: absolute;
    top: 10px;
    right: 15px;
    color: #aaa;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

#secretKeyModal .close:hover,
#secretKeyDisplayModal .close:hover {
    color: #fff;
}

#secretKeyModal pre,
#secretKeyDisplayModal pre {
    white-space: pre-wrap;
    word-wrap: break-word;
}

.secret-key-container {
    display: flex;
    align-items: center;
    font-size: 18px;
    letter-spacing: 0.1em;
    padding: 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

#secretKeyDisplayArea {
    flex-grow: 1;
    word-break: break-all;
    margin-right: 10px;
}

#secretKeyDisplayArea::after {
    content: '\f0c5';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    margin-left: 5px;
}

.copied-message {
    position: fixed;
    background-color: var(--background-color);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 14px;
    box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    transition: opacity 0.5s ease-out;
}

.copied-message.error {
    background-color: #f44336;
}

.danger-btn {
    background-color: #B82D28 !important;
    color: var(--header-color);
}

.danger-btn:hover {
    background-color: #D4403A !important
}

/* Activity Graph */
#activityTracker {
    margin-top: 40px;
}

#activityGraphContainer {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 10px;
}

#activityGraph {
    min-width: 800px;
    display: grid;
    grid-template-columns: auto 1fr;
    grid-template-rows: auto 1fr;
    gap: 4px;
}

#monthLabels {
    grid-column: 2;
    display: flex;
    justify-content: space-around;
}

.month-label {
    font-size: 12px;
    color: var(--light-text-color);
}

#dayLabels {
    grid-row: 2;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    padding-right: 4px;
}

.day-label {
    font-size: 12px;
    color: var(--light-text-color);
    text-align: right;
}

.activity-cell {
    width: 10px;
    height: 10px;
    background-color: var(--background-secondary);
    border-radius: 2px;
}

.activity-cell.has-workout {
    background-color: var(--primary-color);
}

.activity-cell:hover {
    background-color: #B0B0B0;
}

/* Tools */

.tool-section {
    margin-bottom: 1rem;
    border: 1px solid #444;
    border-radius: 4px;
    overflow: hidden;
}

.tool-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    background-color: var(--background-secondary);
    cursor: pointer;
    margin: 0;
}

.toggle-tool {
    color: var(--light-text-color);
    background: none !important;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.tool-content {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    padding: 0 2rem;
    transition: max-height 0.3s ease-out, opacity 0.3s ease-out, padding 0.3s ease-out;
}

.tool-content.expanded {
    max-height: 1000px;
    opacity: 1;
    padding: 2rem;
    transition: max-height 0.5s ease-in, opacity 0.3s ease-in, padding 0.3s ease-in;
}

.rep-max-calculator, .warm-up-calculator {
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.percent-calculator {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.percent-buttons {
    display: grid;
    grid-template-columns: repeat(4, minmax(60px, 80px));
    gap: 0.5rem;
    justify-content: center;
}

.percent-input-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.percent-input-group .input-group {
    flex: 1;
}

.result-box {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.result-display {
    min-height: 1.5rem;
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--background-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--accent-color);
}

.input-separator {
    display: flex;
    align-items: center;
    padding-bottom: 0.5rem;
    color: var(--text-color);
}

.custom-percent-btn[contenteditable="true"] {
    min-width: 60px;
    cursor: text;
    empty-cells: show;
}

.custom-percent-btn[contenteditable="true"]:empty:before {
    content: attr(placeholder);
}
/* Style the div to look like a button */
.button-like {
    display: inline-block;
    border-radius: 4px;
    color: #1e1e1e;
    background: var(--primary-color);
    cursor: pointer;
    text-align: center;
    align-content: center;
    user-select: none;
    min-height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.button-like[contenteditable="true"] {
    cursor: text;
    min-width: 60px;
}

.percent-calculator button, .percent-calculator div.button-like {
    font-weight: bold;
}

.rep-max-calculator .input-group {
    flex: 1;
    max-width: 120px;
    display: flex;
    flex-direction: column;
}

.rep-max-calculator .input-group label, .warm-up-calculator .input-group label, .percent-input-group .input-group label, .result-box label {
    margin-bottom: 0.25rem;
    color: var(--light-text-color);
    font-weight: bold;
    text-align: center;
}

.rep-max-calculator input, .warm-up-calculator input, .percent-calculator input {
    width: 100%;
    padding: 0.5rem 0;
    border: 1px solid #444;
    border-radius: 4px;
    font-size: 1rem;
    text-align: center;
}

.input-separator {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 30px;
    margin: 0 1rem;
    font-size: 1rem; 
    font-weight: bold;
    align-self: center;
}

#calculateRM, #calculateWarmUp {
    display: block;
    margin: 1rem auto;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
}

#repMaxResults, #warmUpResults, #warmUpResult h3 {
    margin: 0 auto;
    text-align: center;
}

#repMaxResults p, #warmUpResults p {
    margin: 0.5rem 0;
    font-size: 1.1rem;
}

.warm-up-set {
    margin: 8px 0;
}

.warm-up-set .set-number {
    font-weight: bold;
    margin-right: 8px;
}

.warm-up-set .description {
    font-size: 14px;
    margin-left: 8px;
    color: #868686;
    font-style: italic;
}

.error {
    color: #f44336;
    padding: 8px;
    border-radius: 4px;
    background-color: var(--background-color);
}

@media screen and (max-width: 480px) {
    .rep-max-calculator input, .warm-up-calculator input, .percent-calculator input {
        padding: 0;
    }
}

@media screen and (min-width: 768px) {
    .settings-group {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .settings-option {
        margin-bottom: 0;
    }
}

#feedback-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.feedback-message {
    background-color: #3A833C;
    color: white;
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 10px;
    animation: fadeInOut 3s ease-in-out;
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0; }
    10%, 90% { opacity: 1; }
}

/* Mobile Styles */
@media screen and (max-width: 480px) {
    body {
        font-size: 16px;
        padding: 0;
    }

    .container {
        padding: 20px 20px 60px;
    }

    h1 {
        font-size: 20px;
    }

    h2#currentDate {
        font-size: 16px;
    }

    input,
    select,
    textarea,
    button {
        font-size: 16px;
    }

    input,
    select,
    textarea {
        height: 44px;
    }

    button, .button-like {
        height: 40px;
    }

    .input-control {
        max-width: 100%;
    }

    .input-control button {
        width: 44px;
        height: 44px;
        font-size: 24px;
        margin: 0 8px;
    }

    .input-control input[type="number"] {
        width: 70px;
        font-size: 16px;
    }

    #bottomNav button {
        font-size: 12px;
        padding-bottom: 8px;
    }

    #bottomNav button i {
        font-size: 18px;
        margin-bottom: 4px;
    }

    #progressChart {
        max-height: 400px;
    }

    .filter-buttons {
        display: none;
        flex-wrap: wrap;
        justify-content: center;
        font-size: 0.9em;
    }

    .filter-buttons button {
        margin-bottom: 5px;
    }

    .data-table {
        font-size: 14px;
    }

    .data-table th,
    .data-table td {
        padding: 0.5rem;
    }

    /* Settings View Mobile Styles */
    #settingsView {
        padding: 15px;
    }

    #settingsView h2 {
        font-size: 18px;
        margin-bottom: 15px;
    }

    .settings-group {
        padding: 15px;
        margin-bottom: 15px;
    }

    .settings-group h3 {
        font-size: 1em;
        margin-bottom: 10px;
    }

    .settings-option {
        margin-bottom: 15px;
    }

    .settings-option h4 {
        font-size: 0.9em;
        margin-bottom: 8px;
    }

    .import-export-controls {
        flex-direction: column;
        gap: 8px;
    }

    .import-export-controls button,
    #changePasswordBtn,
    #deleteAccountBtn {
        width: 100%;
    }

    #unitPreference,
    #themePreference {
        padding: 8px;
        font-size: 14px;
    }
}

.time-input-container {
    display: flex;
    align-items: center;
    border-radius: 5px;
    padding: 5px;
    justify-content: center;
}

.time-input-container select {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border: none;
    font-size: 18px;
    width: 50px;
    text-align: center;
    margin: 0 5px;
}

.time-separator {
    font-size: 16px;
    color: #868686;
    font-weight: bold;
}

.time-unit {
    font-size: 16px;
    color: #868686;
    padding: 0 5px;
}

.custom-select-container {
    position: relative;
    width: 90%;
    max-width: none;
    margin: 0 auto 10px;
}

.custom-select-trigger {
    position: relative;
    padding-right: 30px;
    padding: 15px;
    background-color: var(--background-secondary);
    border: 1px solid #444;
    border-radius: 4px;
    cursor: pointer;
    width: 100%;
    box-sizing: border-box;
    text-align: left;
}

@media (hover: hover) {
    .custom-select-trigger:focus,
    .custom-option:focus {
        outline: 2px solid #ddd;
        outline-offset: -2px;
    }
}

.custom-select-trigger::after {
    content: '\25BC';
    font-size: 14px;
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    transition: transform 0.3s ease;
}

/* Rotate the icon when the dropdown is open */
.custom-select-trigger[aria-expanded="true"]::after {
    transform: translateY(-50%) rotate(180deg);
}

/* Dropdown options styling */
.custom-options-container {
    display: none;
    position: absolute;
    width: 100%;
    background-color: var(--background-color);
    border: 1px solid #444;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    z-index: 100;
    max-height: 60vh;
    overflow-y: auto;
    border-radius: 4px;
}

.custom-options-container.active {
    display: block;
}

/* Search input styling */
.search-wrapper {
    display: flex;
    align-items: center;
    padding: 10px 12px 5px 12px;
    height: 34px;
}

.search-input-container {
    position: relative;
    width: calc(100% - 40px); /* Adjust based on the width of your sort button */
    height: 100%;
}

.search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: #888;
    pointer-events: none;
    font-size: 14px; /* Adjust size as needed */
}

.exercise-search-input {
    width: calc(100% - 50px); /* Adjust based on the icon width and desired padding */
    height: 100%;
    padding: 0 8px 0 35px;
    background-color: var(--background-color);
    border: 1px solid #444;
    border-radius: 4px;
    color: var(--text-color);
    font-size: 14px;
    line-height: 38px; /* Adjust to match the height of the input */
}

.sort-button {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 16px;
    cursor: pointer;
    padding: 0 10px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sort-button:hover {
    color: var(--header-color); 
    background: none;
}

.sort-controls {
    position: relative;
}

.sort-menu {
    position: absolute;
    right: 0;
    top: 100%;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 1000;
}

.sort-menu button {
    display: block;
    width: 100%;
    padding: 8px 12px;
    text-align: left;
    border: none;
    background: none;
    color: var(--text-color);
    cursor: pointer;
    white-space: nowrap;
}

.sort-menu button:hover {
    background-color: var(--hover-color);
}

/* Mobile-specific adjustments */
@media screen and (max-width: 480px) {
    .exercise-search-input {
        width: calc(100% - 50px); /* Slightly adjust for smaller screens */
        font-size: 16px; /* Larger font size for better readability on mobile */
    }

    .exercise-search-input:focus {
        outline: none;
    }
}

.category-filters {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    border-bottom: 1px solid #2b2b2b;
    margin-top: 5px;
    padding-bottom: 5px;
}

.category-filters .filter-button {
    background: none;
}

.category-filters .filter-button.active {
    background-color: #2b2b2b;
}

.custom-options-container .optgroup-label {
    font-weight: bold;
    background-color: var(--background-secondary);
    padding: 12px 10px;
    color: var(--text-color);
    border-bottom: 1px solid #333;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 12px;
    pointer-events: none;
    user-select: none;
    position: sticky;
    top: 0;
    z-index: 1;
}

.custom-option {
    padding: 15px;
    cursor: pointer;
    color: var(--text-color);
    padding-left: 30px;
    border-bottom: 1px solid #2b2b2b;
}

.custom-option:hover {
    background-color: #2b2b2b;
}

.custom-option {
    position: relative;
    padding-left: 25px !important;
    color: var(--text-color) !important;
}

.custom-option::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* New Category Dots */
.custom-option[data-category="chest"]::before{
    background-color: #FF6F61;
}

.custom-option[data-category="back"]::before {
    background-color: #36CADD;
}

.custom-option[data-category="legs"]::before {
    background-color: #FBC02D;
}

.custom-option[data-category="arms"]::before {
    background-color: #C2B0DE;
}

.custom-option[data-category="core"]::before {
    background-color: #FFA185;
}

.custom-option[data-category="cardio"]::before {
    background-color: #83C986;
}

.custom-option[data-category="custom"]::before {
    background-color: #cecece;
}

.filter-button[data-category] {
    position: relative;
    padding-left: 20px;
    color: var(--text-color) !important;
}

.filter-button[data-category]::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.filter-button[data-category="chest"]::before { background-color: #FF6F61; }
.filter-button[data-category="back"]::before { background-color: #36CADD; }
.filter-button[data-category="legs"]::before { background-color: #FBC02D; }
.filter-button[data-category="arms"]::before { background-color: #C2B0DE; }
.filter-button[data-category="core"]::before { background-color: #FFA185; }
.filter-button[data-category="cardio"]::before { background-color: #83C986; }
.filter-button[data-category="custom"]::before { background-color: #cecece; }

.optgroup-label {
    color: var(--text-secondary-color);
    font-weight: 600;
}

#newCustomExercise {
    box-sizing: border-box;
    padding: 15px;
    margin-bottom: 15px;
}

.custom-option-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.exercise-name {
    flex-grow: 1;
    margin-right: 8px;
}

.delete-exercise-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 4px 8px;
    font-size: 1.2em;
    min-width: 32px;
    min-height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.delete-exercise-btn:hover {
    color: var(--text-color);
    background: none;
}

/* Optional: Add touch feedback */
.delete-exercise-btn:active {
    background-color: rgba(255, 68, 68, 0.1);
    border-radius: 50%;
}

.pwa-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000; /* Just below the popover */
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.pwa-popover {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 95%;
    max-width: 400px;
    background: #ffffff;
    color: #000000;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    z-index: 1001;
    animation: slideUpPopover 0.3s ease-out;
}

.pwa-popover-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    border-bottom: 1px solid #e0e0e0;
}

.pwa-popover-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.pwa-popover-content {
    padding: 16px;
    font-size: 14px;
    line-height: 1.3;
}

.pwa-popover-content p {
    margin: 0 16px;
}

.pwa-popover .close-button {
    background: none;
    border: none;
    font-size: 20px;
    color: #000000;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    width: 24px;
    height: 24px;
}

.pwa-popover .instructions {
    margin-top: 16px;
}

.pwa-popover ol {
    padding-left: 16px;
    margin: 8px 0;
}

.pwa-popover li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 8px 0;
    line-height: 1.2;
}

.pwa-popover .icon {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Icons";
    font-size: 1.1em;
    vertical-align: middle;
}

.ios-icon {
    width: 30px;
    height: 30px;
    vertical-align: middle;
    margin-right: 8px;
    display: inline-block;
}

.share-icon {
    width: 20px;
    color: blue;
}

.home-icon {
    width: 20px;
}

@keyframes slideUpPopover {
    from {
        transform: translate(-50%, 100%);
        opacity: 0;
    }
    to {
        transform: translate(-50%, 0);
        opacity: 1;
    }
}

/* Ensure consistent light theme */
@media (prefers-color-scheme: dark) {
    .pwa-popover {
        background: #ffffff;
        color: #000000;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }

    .pwa-popover .close-button {
        color: #000000;
    }
}

/* Mobile-specific styles */
@media only screen and (max-width: 767px) {
    html, body {
        touch-action: manipulation;
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        -khtml-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
    }

    * {
        -webkit-tap-highlight-color: rgba(0,0,0,0);
    }

    input, textarea {
        -webkit-user-select: auto;
        -khtml-user-select: auto;
        -moz-user-select: auto;
        -ms-user-select: auto;
        user-select: auto;
    }
}

/* Styles for iOS devices */
@supports (-webkit-touch-callout: none) {
    @media only screen and (max-width: 767px) {
        html, body {
            -webkit-touch-callout: none;
        }
    }
}

@media (max-width: 600px) {
    .custom-select-trigger {
        font-size: 16px;
        padding: 12px;
        top: 2px;
        z-index: 1000;
    }

    .custom-options-container {
        max-height: 62vh;
        overflow-y: scroll;
    }

    .custom-option {
        font-size: 16px;
        padding: 12px;
        padding-left: 30px;
    }
}

@media (max-width: 768px) {
    .time-input-container select {
        font-size: 18px;
        width: 60px;
    }
}

@media screen and (max-width: 900px) and (orientation: landscape) {
    #bottomNav {
        transform: translateY(calc(100% - 10px));
        transition: transform 0.3s ease-in-out;
    }

    #bottomNav::before {
        content: '\f077';
        font-family: 'Font Awesome 5 Free';
        font-weight: 900;
        position: absolute;
        top: -10px;
        left: 50%;
        transform: translateX(-50%);
        background-color: var(--background-color);
        padding: 0px 25px;
        border-top-left-radius: 10px;
        border-top-right-radius: 10px;
        cursor: pointer;
        box-shadow: 0 -2px 1px rgba(0, 0, 0, 0.1);
        transition: content 0.3s ease-in-out;
    }

    #bottomNav.expanded::before {
        content: '\f078';
    }

    #bottomNav.expanded {
        transform: translateY(0);
    }

    #bottomNav button {
        opacity: 0;
        transition: opacity 0.2s ease-in-out;
    }

    #bottomNav.expanded button {
        opacity: 1;
    }
}

/* Desktop Adjustments */
@media screen and (min-width: 481px) {
    .input-control button {
        width: 50px;
        margin: 0 10px;
    }

    .input-control input[type="number"] {
        width: 100px;
        font-size: 18px;
    }
}

/* a11y */
/* Remove focus outline for non-keyboard interactions */
*:focus:not(:focus-visible) {
    outline: none;
  }
  
  /* Maintain focus outline for keyboard navigation */
  *:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
  }

  body:not(.user-is-tabbing) *:focus {
    outline: none;
  }
  
  .user-is-tabbing *:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
  }

  @media (hover: none) and (pointer: coarse) {
    /* Styles for touch devices */
    *:focus {
      outline: none;
    }
  }

  @media (hover: none) and (pointer: coarse) {
    .tap-highlight {
      -webkit-tap-highlight-color: var(--primary-color);
    }
  }