:root {
    /* shadcn/ui inspirierte Farbpalette */
    --background: #ffffff;
    --foreground: #020817;
    --card: #ffffff;
    --card-foreground: #020817;
    --popover: #ffffff;
    --popover-foreground: #020817;
    --primary: #18181b;
    --primary-foreground: #ffffff;
    --secondary: #f4f4f5;
    --secondary-foreground: #18181b;
    --muted: #f4f4f5;
    --muted-foreground: #71717a;
    --accent: #f4f4f5;
    --accent-foreground: #18181b;
    --destructive: #ef4444;
    --destructive-foreground: #fef2f2;
    --border: #e4e4e7;
    --input: #e4e4e7;
    --ring: #18181b;
    --radius: 0.5rem;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    height: 100%;
}

body {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", sans-serif;
    font-feature-settings: "cv02", "cv03", "cv04", "cv11";
    line-height: 1.5;
    color: var(--foreground);
    background-color: var(--background);
    padding: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

header {
    margin: 2.5rem 0;
}

h1 {
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 2.25rem;
    margin-bottom: 0.75rem;
}

h2 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.025em;
    line-height: 1.75rem;
    margin-bottom: 0.5rem;
    /* margin-top: 2rem; */
}

p {
    /* margin-bottom: 1rem; */
}

.form-section {
    margin-bottom: 2rem;
    padding: 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background-color: var(--card);
}

.form-group {
    margin-bottom: 1.5rem;
    min-width: fit-content;
}

label {
    display: block;
    font-size: 0.875rem;
    /* font-weight: 500; */
    margin-bottom: 0.5rem;
    color: var(--foreground);
}

.question {
    font-weight: 500;
    font-size: 1rem;
    margin-bottom: 0.75rem;
}

input[type="text"],
input[type="number"],
textarea,
select {
    width: 100%;
    border-radius: var(--radius);
    border: 1px solid var(--input);
    background-color: transparent;
    padding: 0.5rem 0.75rem;
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input[type="text"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
    border-color: var(--ring);
    box-shadow: 0 0 0 1px var(--ring);
}

select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg width='16' height='16' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M4.75 6.75L8 10.25l3.25-3.5' stroke='%2371717a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 16px;
    padding-right: 2.5rem;
}

.radio-group,
.checkbox-group {
    display: grid;
    gap: 0.75rem;
}

.radio-option,
.checkbox-option {
    display: flex;
    align-items: center;
}

.radio-option input[type="radio"],
.checkbox-option input[type="checkbox"] {
    /* Verstecke das Original */
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.radio-option .radio-control,
.checkbox-option .checkbox-control {
    display: flex;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    border: 1px solid var(--input);
    margin-right: 0.5rem;
    transition: all 0.2s;
    position: relative;
    flex-shrink: 0;
    cursor: pointer;
}

.checkbox-option .checkbox-control {
    border-radius: 0.25rem;
}

.radio-option input[type="radio"]:checked + .radio-control::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background-color: var(--primary);
}

.checkbox-option input[type="checkbox"]:checked + .checkbox-control {
    background-color: var(--primary);
    border-color: var(--primary);
}

.checkbox-option input[type="checkbox"]:checked + .checkbox-control::after {
    content: "";
    position: absolute;
    top: 45%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 0.25rem;
    height: 0.5rem;
    border: solid white;
    border-width: 0 2px 2px 0;
}

.radio-option label,
.checkbox-option label {
    display: flex;
    align-items: center;
    margin-bottom: 0;
    font-size: 1rem;
    cursor: pointer;
}

.time-input {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.75rem;
}

.time-input input {
    width: 4rem;
}

.time-label {
    min-width: 6rem;
    font-size: 0.875rem;
    color: var(--foreground);
}

button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    /* border-radius: var(--radius); */
    border: 1px solid var(--primary);
    background-color: var(--primary);
    color: var(--primary-foreground);
    font-size: 0.875rem;
    font-weight: 500;
    height: 2.5rem;
    padding-left: 1rem;
    padding-right: 1rem;
    transition: all 0.2s;
    cursor: pointer;
}

button:hover {
    opacity: 0.9;
}

button:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--background), 0 0 0 4px var(--ring);
}

.help-text {
    font-size: 0.85rem;
    color: var(--muted-foreground);
    margin-top: 0.25rem;
}

.email-info-text {
    font-size: 0.75rem;
    color: var(--muted-foreground);
    margin-top: 0.25rem;
}

.info-text {
    font-size: 0.85rem;
    color: red;
    margin: 0.25rem 0;
}

.info-title {
    font-size: 1rem;
}

.ul-list-d {
    margin-left: 20px;
    color: #3a3d3e;
    font-size: 0.95rem;
}

.hours-input-group {
    margin: 5px 0;
}

.instruction-text {
    font-size: 0.9375rem;
}

.small_input {
    max-width: 6rem;
}

.flex-column {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

/* Styles für die Flex-basierte Rating-Skala */
.rating-item {
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1.5rem;
}

.rating-item:last-child {
    border-bottom: none;
}

.rating-statement {
    font-weight: 500;
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.rating-question-main {
    font-weight: 500;
    margin-bottom: 1rem;
}

.rating-options {
    display: flex;
    flex-direction: column;
}

.rating-scale-labels {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    color: var(--muted-foreground);
}

.rating-option-group {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.rating-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    /* width: 20%; */
}

.rating-option input[type="radio"] {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

.rating-control {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 5rem;
    height: 5rem;
    border-radius: 20%;
    border: 1px solid var(--input);
    transition: all 0.2s;
    font-size: 0.875rem;
    padding: 10px;
    text-align: center;
    font-size: 12px;
}

.rating-option input[type="radio"]:checked + .rating-control {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}

.rating-control:hover {
    background-color: var(--secondary);
}

.test-search-input {
    width: 100%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid var(--input);
    border-radius: var(--radius);
}

.test-search-results {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 5px;
    display: none;
}

.test-result-item {
    padding: 10px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
}

.test-result-item:hover {
    background-color: var(--secondary);
}

.test-result-short {
    font-weight: 500;
    color: var(--foreground);
}

.test-result-long {
    font-size: 0.85rem;
    color: var(--muted-foreground);
    margin-top: 3px;
}

.selected-tests-container {
    margin-top: 15px;
}

.selected-test-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    margin-bottom: 8px;
    background-color: var(--secondary);
    border-radius: var(--radius);
}

.selected-test-info {
    flex: 1;
}

.selected-test-short {
    font-weight: 500;
}

.selected-test-long {
    font-size: 0.85rem;
    color: var(--muted-foreground);
}

.remove-test-btn {
    background: none;
    border: none;
    color: var(--destructive);
    cursor: pointer;
    padding: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    height: 30px;
    width: 30px;
}

.remove-test-btn:hover {
    background-color: rgba(239, 68, 68, 0.1);
}

.active-section {
    display: block;
}

.json-log-button-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.test-navigation {
    background-color: #f5f5f5;
    padding: 10px;
    margin-bottom: 20px;
    border-radius: 5px;
}

.progress-indicator {
    margin-top: 10px;
    font-weight: bold;
}

.navigation-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    border: none !important;
}

.json-container {
    background-color: #f5f5f5;
    padding: 15px;
    border-radius: 5px;
    margin: 20px 0;
    overflow-x: auto;
}

.json-container pre {
    margin: 0;
    white-space: pre-wrap;
}

.btn {
    padding: 8px 16px;
    border-radius: 4px;
    font-weight: bold;
    cursor: pointer;
    border: none;
    margin-right: 10px;
}

.btn-primary {
    background-color: black;
    color: white;
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-info {
    background-color: #17a2b8;
    color: white;
}

.btn:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
}

.error-text {
    margin-top: 10px;
}

/* Test search results styling */
.test-search-results {
    border: 1px solid #ddd;
    max-height: 300px;
    overflow-y: auto;
    display: none;
    background-color: white;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.test-result-item {
    padding: 10px;
    border-bottom: 1px solid #eee;
    cursor: pointer;
}

.test-result-item:hover {
    background-color: #f8f9fa;
}

.test-result-short {
    font-weight: bold;
}

.test-result-long {
    font-size: 0.9em;
    color: #666;
}

/* Selected tests styling */
.selected-tests-container {
    margin-top: 15px;
}

.selected-test-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 4px;
    margin-bottom: 8px;
}

.selected-test-short {
    font-weight: bold;
}

.selected-test-long {
    font-size: 0.9em;
    color: #666;
}

.remove-test-btn {
    background-color: #dc3545;
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

#page_02,
#page_03,
#page_04,
#page_05,
#page_06,
#page_07,
#page_08,
#page_09,
#page_10,
#page_11,
#page_12,
#page_13,
#page_14,
#page_15,
#page_16,
#page_17 {
    display: none;
}

/* Additional styling */
.mt-4 {
    margin-top: 1rem;
}

.mt-8 {
    margin-top: 2rem;
}

.form-input {
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius);
    border: 1px solid var(--input);
    background-color: var(--background);
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-input:focus {
    outline: none;
    border-color: var(--ring);
    box-shadow: 0 0 0 2px rgba(24, 24, 27, 0.2);
}

/* Copy link functionality */
.copy-link-container {
    display: flex;
    align-items: center;
    margin: 1rem 0;
    position: relative;
}

.study-link {
    background-color: var(--muted);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    margin-right: 0.5rem;
    font-size: 1rem;
}

.copy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--primary);
    color: var(--primary-foreground);
    border: none;
    border-radius: var(--radius);
    width: auto;
    height: 36px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.copy-btn:hover {
    background-color: var(--ring);
}

.copy-feedback {
    position: absolute;
    right: 0;
    bottom: -25px;
    background-color: var(--primary);
    color: var(--primary-foreground);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius);
    font-size: 0.75rem;
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.copy-feedback.visible {
    opacity: 1;
}

/* Modal styling */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    visibility: hidden;
    opacity: 0;
    transition: visibility 0s linear 0.25s, opacity 0.25s 0s;
}

.modal.show {
    visibility: visible;
    opacity: 1;
    transition-delay: 0s;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: -1;
}

.modal-container {
    background-color: var(--background);
    border-radius: var(--radius);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 550px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.close-modal {
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted-foreground);
    transition: color 0.2s;
}

.close-modal:hover {
    color: var(--foreground);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    max-height: calc(85vh - 140px);
    /* header and footer height */
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
}

.modal-list {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.modal-list li {
    margin-bottom: 0.5rem;
}

.special_div {
    border: 1px solid #4279bc;
    border-radius: 0.25em;
    box-shadow: 0 0 0 1px hsla(230, 13%, 9%, 0.05),
        0 0.3px 0.4px hsla(230, 13%, 9%, 0.02),
        0 0.9px 1.5px hsla(230, 13%, 9%, 0.045),
        0 3.5px 6px hsla(230, 13%, 9%, 0.09);
    position: relative;
    padding: 3em 1em 2em 1em;
}

.special_hd {
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    font-size: var(--text-size-90);
    color: #4279bc;
    background-color: #4279bc36;
    height: max-content;
    padding: 6px 18px;
    border-radius: 4px 0px 6px 0px;
    align-items: center;
}

.special_split {
    margin-top: 10px;
    padding-top: 15px;
    border-top: 1px solid #4279bc96;
}

.btn_special {
    background-color: #4279bc;
    font-weight: 400;
}

.text_special {
    font-size: 0.9375rem;
}

.btn_final_div {
    margin-top: 30px;
    width: 100%;
    display: flex;
    justify-content: flex-end;
}

.btn_final {
    margin-right: 0px;
    padding: 30px;
}

/* Responsives Design für mobile Geräte */
@media (max-width: 640px) {
    .rating-scale-labels {
        display: none;
    }

    .rating-option-group {
        display: flex;
        gap: 5px;
        justify-content: center;
        flex-direction: column;
    }

    .rating-option {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        cursor: pointer;
    }

    .rating-control {
        display: flex;
        justify-content: center;
        align-items: center;
        width: 13rem;
        height: 2.6rem;
        border-radius: 0.25em;
        border: 1px solid var(--input);
        transition: all 0.2s;
        font-size: 0.875rem;
        padding: 10px;
        text-align: center;
        font-size: 12px;
    }
}

@media (max-width: 640px) {
    .table-header-text {
        display: none;
    }

    .form-section {
        padding: 1rem;
    }

    .statement-text {
        max-width: 14rem;
    }
}

.footer_div {
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 20px;
    color: grey;
    font-size: 14px;
    padding-bottom: 10px;
}

.footer_link {
    color: grey;
    font-size: 14px;
}

.contact_info {
    margin: 0.3em 0;
    line-height: 1.3;
    font-size: 15px;
}

/* Zusätzliche Stile für die Startseite */
.active-section {
    display: block;
}

.mt-4 {
    margin-top: 1.5rem;
}

ul {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

ul li {
    margin-bottom: 0.5rem;
}

h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.check_start {
    border-left: 2px solid #4279bc;
    padding-left: 10px;
}

.HIDE {
    opacity: 0;
}

.HIDE:hover {
    opacity: 0;
}

/* Save indicator styles */
.save-indicator,
.save-error {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 14px;
    z-index: 1000;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: opacity 0.3s ease;
}

.save-indicator {
    background-color: #10b981;
    color: white;
}

.save-error {
    background-color: #ef4444;
    color: white;
}

.header_study {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.progress-container {
    width: 250px;
    height: 8px;
    background-color: #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
    display: flex;
}

.progress-bar {
    height: 100%;
    background-color: #0067a2;
    border-radius: 10px;
    transition: width 0.3s ease;
}

.progress-bar-container-outer {
    display: flex;
    margin-bottom: 10px;
    justify-content: flex-end;
}

.progress-bar-container-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.progress-text {
    color: #666;
    font-size: 12px;
}

.phb_logo {
    width: 180px;
    height: auto;
}

/* Accordion Styles  */

.accordion-container {
    margin: 1rem 0;
}

.accordion-item {
    /* border: 1px solid var(--border); */
    /* border-radius: var(--radius); */
    margin-bottom: 0.5rem;
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 1rem 1.5rem;
    background-color: var(--secondary);
    border: none;
    border-radius: 0px;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    color: var(--foreground);
}

.accordion-header:focus-visible {
    outline: none;
    box-shadow: none;
}

.accordion-header:hover {
    background-color: var(--accent);
    outline: none;
    box-shadow: none;
}

.accordion-icon {
    font-size: 1.25rem;
    font-weight: bold;
    line-height: 1;
}

.accordion-content {
    display: none;
    border-top: 1px solid var(--border);
}

.accordion-body {
    padding: 1.5rem;
    background-color: var(--background);
}

/* Responsive Anpassungen für mobile Geräte */
@media (max-width: 640px) {
    .accordion-header {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }

    .accordion-body {
        padding: 1rem;
    }
}

@media (max-width: 640px) {
    .phb_logo {
        width: 130px;
        height: auto;
    }
}

/* Validation Error Styles */
.form-section.validation-error {
    border: 2px solid #ef4444 !important;
    border-radius: 0.5rem !important;
    transition: border-color 0.3s ease;
}

.validation-error {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    font-weight: 500;
    display: none;
}

.validation-error.show {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Input focus states for validation */
input:invalid {
    border-color: #ef4444;
}

input:valid {
    border-color: var(--input);
}

select:invalid {
    border-color: #ef4444;
}

select:valid {
    border-color: var(--input);
}

/* Smooth transitions for form sections */
.form-section {
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

/* Duration Picker Styles - Add these to your app.css */

.duration-input-group {
    margin-bottom: 1.5rem;
}

.duration-label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--foreground);
    font-size: 0.875rem;
}

.duration-picker {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-start;
    align-items: center;
}

.duration-select {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--input);
    border-radius: var(--radius);
    background-color: var(--background);
    color: var(--foreground);
    font-size: 0.875rem;
    max-width: 80px;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg width='16' height='16' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M4.75 6.75L8 10.25l3.25-3.5' stroke='%2371717a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    background-size: 16px 16px;
    padding-right: 2.5rem;
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.duration-select:focus {
    outline: none;
    border-color: var(--ring);
    box-shadow: 0 0 0 1px var(--ring);
}

.duration-select:hover {
    border-color: var(--muted-foreground);
}

.duration-display {
    margin-left: 1rem;
    padding: 0.5rem 1rem;
    background-color: var(--muted);
    border-radius: var(--radius);
    font-size: 0.875rem;
    color: var(--foreground);
    font-weight: 500;
    min-width: 80px;
    text-align: center;
}

.total-summary {
    margin-top: 2rem;
    padding: 1rem;
    background-color: var(--secondary);
    border-radius: var(--radius);
    border-left: 4px solid var(--primary);
}

.total-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--foreground);
}

.total-time {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

#no_stand_info_tpb {
    margin: 20px 0;
}

/* Responsive adjustments for mobile devices */
@media (max-width: 640px) {
    .duration-picker {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .duration-display {
        margin-left: 0;
        width: 100%;
    }

    .duration-select {
        width: 100%;
        min-width: unset;
    }

    .total-summary {
        margin-top: 1.5rem;
        padding: 0.75rem;
    }

    .total-time {
        font-size: 1.125rem;
    }

    h1 {
        font-size: 1.2rem;
        line-height: 2rem;
    }

    h3 {
        font-size: 1rem;
    }

    p {
        font-size: 0.92rem;
    }

    ul li {
        font-size: 0.92rem;
    }

    .radio-option label,
    .checkbox-option label {
        font-size: 0.92rem;
    }

    .progress-bar-container-outer {
        justify-content: center;
    }
}