/* ==================== CSS Variables ==================== */
:root {
    --text-color: #e0e0e0;
    --accent-color: #5b9bd5;
    --accent-hover: #6ba8e0;
    --accent-secondary: #4a7ba7;
    --accent-danger: #d9534f;
    --glass-bg: rgba(20, 20, 20, 0.85);
    --glass-border: rgba(255, 255, 255, 0.15);
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
    --gradient-primary: linear-gradient(135deg, #4a5f7f 0%, #3d4f66 100%);
    --gradient-success: linear-gradient(135deg, #5b9bd5 0%, #4a7ba7 100%);
    --gradient-danger: linear-gradient(135deg, #d9534f 0%, #c9302c 100%);
    --gradient-accent: linear-gradient(135deg, #4a5f7f 0%, #5b9bd5 100%);
}

/* ==================== Base Styles ==================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: #0a0e27;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(91, 155, 213, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(74, 123, 167, 0.1) 0%, transparent 50%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    font-size: 16px;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    color: var(--text-color);
}

/* ==================== Layout ==================== */
.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
}

header {
    background: rgba(20, 20, 20, 0.5);
    border-bottom: 1px solid rgba(91, 155, 213, 0.2);
    color: white;
    backdrop-filter: blur(10px);
}

header .container {
    padding-top: 12px;
    padding-bottom: 12px;
}

header .container > div {
    flex-wrap: wrap;
    min-width: 0;
}

header h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, #e0e0e0 0%, #b8c5d6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 0;
    overflow-wrap: break-word;
    word-break: break-word;
}

footer {
    text-align: center;
    padding: 40px 20px 20px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ==================== Card Component ==================== */
.card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2), inset 0 4px 20px rgba(255, 255, 255, 0.1);
    padding: 30px;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
}

.card-fullwidth {
    max-width: none;
    width: calc(100vw - 40px);
    position: relative;
    left: 50%;
    margin-left: calc(-50vw + 20px);
    overflow: visible;
    padding: 30px 40px;
}

.card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    pointer-events: none;
    box-shadow: inset -10px -8px 0px -11px rgba(255, 255, 255, 0.1),
                inset 0px -9px 0px -8px rgba(255, 255, 255, 0.1);
    z-index: 1;
}

.card > * {
    position: relative;
    z-index: 2;
}

.card h2 {
    color: #b8c5d6;
    margin-bottom: 20px;
    font-size: 1.3rem;
    letter-spacing: 0.3px;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-block;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    font-family: var(--font-family);
}

.btn:hover {
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn:active {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background: var(--gradient-success);
    border-color: rgba(91, 155, 213, 0.6);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #6ba8e0 0%, #5a8ec4 100%);
    box-shadow: 0 0 20px rgba(91, 155, 213, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-success {
    background: var(--gradient-success);
    border-color: rgba(91, 155, 213, 0.6);
}

.btn-success:hover {
    background: linear-gradient(135deg, #6ba8e0 0%, #5a8ec4 100%);
    box-shadow: 0 0 20px rgba(91, 155, 213, 0.3);
}

.btn:disabled {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    cursor: not-allowed;
    opacity: 0.5;
}

/* Button pressed/active state */
.btn-pressed {
    box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.4) !important;
    transform: translateY(1px);
    border-color: rgba(0, 0, 0, 0.3) !important;
    opacity: 0.85;
    filter: saturate(0.6);
}

/* ==================== Navigation ==================== */
.navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

/* ==================== Progress Bar ==================== */
.progress-bar {
    width: 100%;
    height: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    margin-bottom: 20px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--gradient-success);
    transition: width 0.3s ease;
    border-radius: 4px;
}

.progress-text {
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: 10px;
    letter-spacing: 0.3px;
}

/* ==================== Form Elements ==================== */
.error {
    color: #ff6b6b;
    font-size: 0.9rem;
    margin-top: 8px;
    font-weight: 500;
}

.required-indicator {
    color: var(--accent-danger);
    margin-left: 3px;
}

.question-number {
    color: rgba(255, 255, 255, 0.35);
    font-weight: 400;
    margin-right: 4px;
    font-variant-numeric: tabular-nums;
}

/* Question Styling */
.question {
    margin-bottom: 14px;
}

/* Page title above the card stack */
.page-title {
    color: #b8c5d6;
    font-size: 1.3rem;
    letter-spacing: 0.3px;
    margin-bottom: 16px;
}

/* Each section group is its own card with a gap */
.question-group-card {
    margin-bottom: 16px;
}

.question-group-card:last-of-type {
    margin-bottom: 0;
}

.question-text {
    display: block;
    margin-bottom: 12px;
    font-weight: 500;
    font-size: 1.05rem;
    color: #b8c5d6;
}

/* Images embedded in question text sit below the label text */
.question-text img {
    display: block;
    width: 100%;
    margin-top: 8px;
}

/* Text Display / Heading */
.question:has(.text-display),
.question:has(.section-header),
.question:has(.image-display) {
    margin-bottom: 8px;
}

.text-display {
    padding: 4px 0;
    color: #b8c5d6;
    font-size: 1.05rem;
    line-height: 1.6;
}

.text-display p {
    margin-bottom: 12px;
}

.text-display p:last-child {
    margin-bottom: 0;
}

/* Image Display */
.image-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 4px 0;
}

.image-display__title {
    align-self: flex-start;
    color: #b8c5d6;
    font-size: 1rem;
    line-height: 1.5;
}

.image-display__img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: block;
}

.image-display__caption {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    text-align: center;
    font-style: italic;
    margin: 0;
}

/* Section Header */
.section-header {
    margin: 8px 0 0;
}

.section-header-content {
    padding: 0 2px;
}

.section-header-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #5b9bd5;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0 0 4px;
}

.section-header-subtitle {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
    margin: 0;
    line-height: 1.5;
}

/* Radio and Checkbox Options */
.radial-choices,
.checkbox-choices {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.choice-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    color: var(--text-color);
    font-weight: 400;
}

.choice-option:hover {
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

.choice-option input[type="radio"],
.choice-option input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-color);
    cursor: pointer;
    flex-shrink: 0;
}

.choice-option input[type="radio"]:checked ~ span,
.choice-option input[type="checkbox"]:checked ~ span {
    font-weight: 600;
    color: var(--accent-color);
}

.choice-option:has(input[type="radio"]:checked),
.choice-option:has(input[type="checkbox"]:checked) {
    background: rgba(91, 155, 213, 0.2);
    border-color: rgba(91, 155, 213, 0.5);
    box-shadow: 0 0 15px rgba(91, 155, 213, 0.2);
}

/* Disabled choice styling */
.choice-option.disabled-choice {
    opacity: 0.4;
    pointer-events: none;
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.1);
}

.choice-option.disabled-choice span {
    color: rgba(255, 255, 255, 0.4);
}

/* Likert Scale */
.likert-scale {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 8px;
}

.likert-options {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 6px;
    padding: 12px 10px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: visible;
}

.likert-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    flex: 1;
    min-width: 0;
    transition: all 0.3s ease;
}

.likert-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.likert-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: min(40px, 100%);
    aspect-ratio: 1;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.7);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.likert-option:hover .likert-number {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(91, 155, 213, 0.5);
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(91, 155, 213, 0.3);
}

.likert-option input[type="radio"]:checked ~ .likert-number {
    background: linear-gradient(135deg, #5b9bd5 0%, #4a7ba7 100%);
    border-color: #5b9bd5;
    color: white;
    transform: scale(1.15);
    box-shadow: 0 6px 16px rgba(91, 155, 213, 0.5);
}

.likert-endpoint-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
    word-break: break-word;
    overflow-wrap: break-word;
    width: 100%;
}

.likert-endpoint-label--min {
    align-self: flex-start;
    width: 250%;
    text-align: left;
}

.likert-endpoint-label--max {
    align-self: flex-end;
    width: 250%;
    text-align: right;
}

@media (max-width: 480px) {
    .likert-options {
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 10px 12px;
    }

    .likert-option {
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: 12px;
        flex: none;
    }

    .likert-number {
        width: 36px;
        height: 36px;
        flex-shrink: 0;
        font-size: 0.9rem;
        border-width: 1.5px;
    }

    .likert-endpoint-label,
    .likert-endpoint-label--min,
    .likert-endpoint-label--max {
        font-size: 0.85rem;
        width: auto;
        text-align: left;
    }
}

/* Form Controls */
.form-control,
input[type="text"],
input[type="email"],
input[type="number"],
textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    background: linear-gradient(145deg, rgba(10, 10, 10, 0.5), rgba(0, 0, 0, 0.5));
    color: white !important;
    -webkit-text-fill-color: white;
    font-family: var(--font-family);
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4) inset,
                0 -1px 0 rgba(255, 255, 255, 0.05) inset,
                0 1px 2px rgba(0, 0, 0, 0.2);
}

/* Number input spinner buttons - dark mode */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    display: none;
}

/* Indeterminate counter with + and - buttons */
.indeterminate-counter {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 200px;
}

.counter-display {
    flex: 0 0 80px;
    padding: 8px 12px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    background: linear-gradient(145deg, rgba(10, 10, 10, 0.5), rgba(0, 0, 0, 0.5));
    color: white !important;
    font-size: 1rem;
    font-family: var(--font-family);
}

.counter-btn {
    flex: 0 0 40px;
    height: 40px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    background: linear-gradient(145deg, rgba(10, 10, 10, 0.5), rgba(0, 0, 0, 0.5));
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s ease;
}

.counter-btn:hover {
    background: linear-gradient(145deg, rgba(20, 20, 20, 0.6), rgba(10, 10, 10, 0.6));
    border-color: rgba(255, 255, 255, 0.25);
    box-shadow: 0 0 8px rgba(91, 155, 213, 0.2);
}

.counter-btn:active {
    transform: scale(0.95);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4) inset;
}

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

.form-control::placeholder,
input[type="text"]::placeholder,
input[type="email"]::placeholder,
input[type="number"]::placeholder,
textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
    -webkit-text-fill-color: rgba(255, 255, 255, 0.4);
}

.form-control:focus,
input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
textarea:focus {
    outline: none;
    border-color: rgba(91, 155, 213, 0.5);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4) inset,
                0 -1px 0 rgba(255, 255, 255, 0.05) inset,
                0 0 8px rgba(91, 155, 213, 0.3);
    background: linear-gradient(145deg, rgba(10, 10, 10, 0.6), rgba(0, 0, 0, 0.6));
}

textarea,
textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

/* ==================== Matrix/Grid Question ==================== */
.matrix-grid {
    overflow-x: auto;
}

.matrix-table {
    width: 100%;
    border-collapse: collapse;
    background: rgba(10, 10, 10, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    overflow: hidden;
    font-size: 0.95rem;
}

.matrix-table thead {
    background: linear-gradient(135deg, rgba(91, 155, 213, 0.15) 0%, rgba(74, 123, 167, 0.1) 100%);
    border-bottom: 2px solid rgba(91, 155, 213, 0.2);
}

.matrix-table th {
    padding: 12px 8px;
    text-align: center;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.matrix-table th:last-child {
    border-right: none;
}

.matrix-row-header {
    text-align: left;
    width: 1%;
    min-width: 150px;
    padding-left: 12px;
}

.matrix-col-header {
    min-width: 100px;
    word-break: break-word;
}

.matrix-table tbody tr {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.matrix-table tbody tr:last-child {
    border-bottom: none;
}

.matrix-table tbody tr:hover {
    background: rgba(91, 155, 213, 0.08);
}

.matrix-row-label {
    padding: 12px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    text-align: left;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.2);
    min-width: 150px;
    max-width: 150px;
    word-break: break-word;
}

.matrix-cell {
    padding: 12px 8px;
    text-align: center;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.matrix-cell:last-child {
    border-right: none;
}

.matrix-radio {
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
}

.matrix-radio input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent-color);
    cursor: pointer;
    flex-shrink: 0;
    margin: 0;
}

.matrix-radio-circle {
    display: none;
}

/* Responsive matrix for mobile */
@media (max-width: 768px) {
    .matrix-table {
        font-size: 0.85rem;
    }
    
    .matrix-row-label,
    .matrix-row-header {
        min-width: 100px;
        max-width: 100px;
        padding: 8px;
    }
    
    .matrix-table th,
    .matrix-cell {
        padding: 8px 4px;
    }
    
    .matrix-radio-circle {
        width: 18px;
        height: 18px;
        border-width: 1.5px;
    }
}

/* ==================== Survey List Page ==================== */
.surveys-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

.survey-link {
    display: block;
    padding: 24px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: relative;
}

.survey-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    pointer-events: none;
}

.survey-link > * {
    position: relative;
    z-index: 1;
}

.survey-link:hover {
    background: rgba(255, 255, 255, 0.12);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
    border-color: rgba(91, 155, 213, 0.4);
}

.survey-link h3 {
    color: #b8c5d6;
    margin-bottom: 8px;
    font-size: 1.2rem;
    font-weight: 600;
}

.survey-link p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.5;
}

.survey-link-action {
    display: inline-block;
    margin-top: 12px;
    color: var(--accent-color);
    font-weight: 600;
    transition: all 0.3s ease;
}

.survey-link:hover .survey-link-action {
    color: var(--accent-hover);
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: rgba(255, 255, 255, 0.5);
}

.empty-state p {
    font-size: 1.05rem;
}

/* ==================== Survey Start Page ==================== */
.survey-description {
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.survey-info {
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.7);
}

.survey-instructions {
    margin-bottom: 30px;
    padding-left: 20px;
    color: rgba(255, 255, 255, 0.75);
}

.survey-instructions li {
    margin-bottom: 10px;
    line-height: 1.5;
}

/* ==================== Questions Page ==================== */
.question-block {
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.question-block--error {
    border-left: 3px solid var(--accent-danger);
    padding-left: 10px;
    margin-left: -13px;
}

.question-block:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.empty-questions {
    color: rgba(255, 255, 255, 0.5);
    font-style: italic;
}

/* ==================== Video Page ==================== */
.video-container {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.fullscreen-btn {
    position: absolute;
    bottom: 15px;
    right: 15px;
    z-index: 20;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    padding: 10px;
    cursor: pointer;
    color: white;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
}

.fullscreen-btn:hover {
    background: rgba(91, 155, 213, 0.8);
    border-color: rgba(91, 155, 213, 0.6);
}

.fullscreen-btn svg {
    display: block;
}

.video-player {
    width: 100%;
    display: block;
    pointer-events: none;
    user-select: none;
    -webkit-user-select: none;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    z-index: 10;
    pointer-events: none;
}

.video-progress-container {
    margin-bottom: 20px;
}

.video-progress {
    width: 100%;
    height: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.video-progress-bar {
    height: 100%;
    background: var(--gradient-success);
    width: 0%;
    transition: width 0.5s ease;
}

.video-status {
    text-align: center;
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.video-complete-message {
    display: none;
    text-align: center;
    padding: 20px;
    background: rgba(91, 155, 213, 0.2);
    border: 1px solid rgba(91, 155, 213, 0.4);
    border-radius: 12px;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.video-complete-message.show {
    display: block;
}

.questions-container {
    display: none;
}

.questions-container.show {
    display: block;
}

.watching-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #ff6b6b;
    font-weight: 500;
    margin-bottom: 15px;
}

.watching-indicator .dot {
    width: 10px;
    height: 10px;
    background: #ff6b6b;
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.description-box {
    margin-bottom: 20px;
    padding: 15px;
    background: rgba(91, 155, 213, 0.1);
    border-left: 4px solid rgba(91, 155, 213, 0.6);
    border-radius: 6px;
    color: rgba(255, 255, 255, 0.9);
}

.already-watched {
    background: rgba(255, 193, 7, 0.15);
    border: 1px solid rgba(255, 193, 7, 0.3);
    padding: 15px;
    border-radius: 12px;
    color: rgba(255, 193, 7, 0.9);
    margin-bottom: 20px;
}

.already-watched strong {
    color: rgba(255, 193, 7, 1);
}

/* ==================== Thank You & Error Pages ==================== */
.thank-you-card,
.error-card {
    text-align: center;
    padding: 50px 30px;
}

.success-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.thank-you-title {
    color: var(--accent-color);
    margin-bottom: 20px;
}

.thank-you-message {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
}

.submission-reference {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.submission-code {
    background: rgba(255, 255, 255, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
    color: var(--accent-color);
    font-family: monospace;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.thank-you-note {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.error-title {
    color: #ff6b6b;
    margin-bottom: 20px;
}

.error-message {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 30px;
}

/* ==================== Bladder Annotation ==================== */
.annotation-container {
    margin-top: 10px;
}

.annotation-toolbar {
    margin-bottom: 15px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}

.canvas-wrapper {
    position: relative;
    display: block;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    overflow: hidden;
    background: #000;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.canvas-wrapper canvas {
    display: block;
}

.annotation-legend {
    margin-top: 15px;
    display: flex;
    gap: 20px;
    font-size: 0.9rem;
    flex-wrap: wrap;
}

/* ==================== Responsive Design ==================== */
@media (max-width: 768px) {
    .container {
        padding: 20px 15px;
    }

    .card {
        padding: 20px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .navigation {
        flex-direction: column;
        gap: 15px;
    }
}

@media (max-width: 360px) {
    .container {
        padding: 16px 12px;
    }

    .card {
        padding: 16px 12px;
        border-radius: 12px;
    }

    header h1 {
        font-size: 1.15rem;
    }

    header .container > div img {
        height: 36px;
    }
}

/* ==================== Utility Classes ==================== */
.text-center {
    text-align: center;
}

.text-muted {
    color: rgba(255, 255, 255, 0.6);
}

.mt-3 {
    margin-top: 20px;
}

.mb-3 {
    margin-bottom: 20px;
}

.mt-4 {
    margin-top: 30px;
}

.mb-4 {
    margin-bottom: 30px;
}

/* ==================== Print Styles ==================== */
@media print {
    /* Light background, dark text */
    body {
        background: #fff !important;
        background-image: none !important;
        color: #111 !important;
        font-size: 11pt;
    }

    /* Hide chrome */
    header,
    .progress-text,
    .progress-bar,
    .navigation,
    .btn {
        display: none !important;
    }

    /* Remove glassmorphism from cards */
    .card,
    .question-group-card {
        background: none !important;
        border: 1px solid #888 !important;
        box-shadow: none !important;
        border-radius: 4px !important;
        padding: 12pt 14pt !important;
        margin-bottom: 10pt !important;
        break-inside: avoid;
    }

    .card::after {
        display: none !important;
    }

    /* Page title */
    .page-title {
        color: #111 !important;
        font-size: 14pt;
        margin-bottom: 8pt;
    }

    /* Question text */
    .question-text,
    .question-text--short_text,
    .question-text--long_text,
    .question-text--radial_choice,
    .question-text--checkbox_multi,
    .question-text--likert_scale,
    .question-text--matrix_choice {
        color: #111 !important;
        font-size: 11pt;
    }

    .question-number {
        color: #555 !important;
    }

    .question-block {
        border-bottom: 1px solid #bbb !important;
        padding-bottom: 6pt !important;
        margin-bottom: 6pt !important;
        break-inside: avoid;
    }

    .question-block:last-child {
        border-bottom: none !important;
    }

    /* Section header */
    .section-header-title {
        color: #111 !important;
        font-size: 11pt;
    }

    .section-header-subtitle {
        color: #222 !important;
    }

    /* Choices: show as plain list, remove dark styling */
    .radial-choices,
    .checkbox-choices {
        gap: 4pt !important;
    }

    .choice-option {
        background: none !important;
        border: 1px solid #777 !important;
        box-shadow: none !important;
        color: #111 !important;
        padding: 4pt 8pt !important;
        border-radius: 3px !important;
    }

    .choice-option span {
        color: #111 !important;
    }

    .choice-option input[type="radio"],
    .choice-option input[type="checkbox"] {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    /* Likert */
    .likert-options {
        background: none !important;
        border: 1px solid #777 !important;
        padding: 6pt !important;
        gap: 4pt !important;
    }

    .likert-number {
        background: none !important;
        border: 1.5px solid #333 !important;
        color: #111 !important;
        box-shadow: none !important;
        width: 28px !important;
        height: 28px !important;
        font-size: 9pt !important;
    }

    /* Show selected likert value clearly in print */
    .likert-option input[type="radio"]:checked ~ .likert-number {
        background: #111 !important;
        color: #fff !important;
        border-color: #111 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .likert-endpoint-label {
        color: #111 !important;
        font-size: 9pt !important;
    }

    /* Matrix grid */
    .matrix-table {
        border-collapse: collapse;
        width: 100%;
        border: none !important;
    }

    .matrix-table thead {
        background: none !important;
        border-bottom: 1px solid #888 !important;
    }

    .matrix-table tbody tr {
        border-bottom: 1px solid #ddd !important;
    }

    .matrix-col-header,
    .matrix-row-header,
    .matrix-row-label,
    .matrix-cell {
        color: #111 !important;
        border: 1px solid #888 !important;
        background: none !important;
    }

    .matrix-radio-circle {
        border-color: #333 !important;
        background: none !important;
    }

    /* Text inputs */
    .form-control,
    input[type="text"],
    input[type="number"],
    textarea {
        background: #fff !important;
        border: 1px solid #666 !important;
        color: #111 !important;
        -webkit-text-fill-color: #111 !important;
        box-shadow: none !important;
    }

    .form-control::placeholder,
    input[type="text"]::placeholder,
    input[type="number"]::placeholder,
    textarea::placeholder {
        color: #999 !important;
        -webkit-text-fill-color: #999 !important;
    }

    /* Text display */
    .text-display {
        color: #111 !important;
    }

    /* Required indicator */
    .required-indicator {
        color: #c00 !important;
    }

    /* Links */
    a {
        color: #111 !important;
        text-decoration: none !important;
    }
}

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}

::-webkit-scrollbar-thumb {
    background: rgba(91, 155, 213, 0.4);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(91, 155, 213, 0.6);
}
/* ==================== Pathology Choice Chips ==================== */
.pathology-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 10px;
}

.chip-option {
    position: relative;
    cursor: pointer;
    transition: all 0.2s ease;
}

.chip-option input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.chip-option .chip-label {
    display: inline-block;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 24px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s ease;
    user-select: none;
}

.chip-option:hover:not(.disabled-chip) .chip-label {
    background: rgba(91, 155, 213, 0.15);
    border-color: rgba(91, 155, 213, 0.4);
    transform: translateY(-1px);
}

.chip-option input[type="checkbox"]:checked + .chip-label {
    background: linear-gradient(135deg, rgba(91, 155, 213, 0.3), rgba(74, 123, 167, 0.3));
    border-color: rgba(91, 155, 213, 0.8);
    color: rgba(255, 255, 255, 1);
    box-shadow: 0 0 12px rgba(91, 155, 213, 0.3);
}

.chip-option.disabled-chip {
    opacity: 0.4;
    pointer-events: none;
}

.chip-option.disabled-chip .chip-label {
    cursor: not-allowed;
}

/* ==================== Gallery Image Selection ==================== */
.gallery-container {
    width: 100%;
    padding: 40px 0;
    background: rgba(10, 14, 39, 0.6);
    border-top: 1px solid rgba(91, 155, 213, 0.2);
    border-bottom: 1px solid rgba(91, 155, 213, 0.2);
    margin-top: 20px;
    margin-bottom: 30px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 2200px;
    margin: 0 auto;
    padding: 0 20px;
}

.gallery-tile {
    position: relative;
    aspect-ratio: 1;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    background: rgba(20, 20, 30, 0.8);
    border: 3px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    tap-highlight-color: transparent;
}

.gallery-tile img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
    -webkit-user-drag: none;
    user-drag: none;
    pointer-events: none;
    -webkit-tap-highlight-color: transparent;
    tap-highlight-color: transparent;
}

/* Hover effects only on devices with hover capability (not touch) */
@media (hover: hover) {
    .gallery-tile:hover {
        border-color: rgba(91, 155, 213, 0.5);
        transform: translateY(-4px);
        box-shadow: 0 8px 16px rgba(91, 155, 213, 0.2);
    }

    .gallery-tile:hover img {
        transform: scale(1.05);
    }
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 165, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.gallery-tile.selected .gallery-overlay {
    opacity: 1;
}

.gallery-tile.selected {
    border-color: rgba(255, 165, 0, 0.8);
    box-shadow: 0 0 20px rgba(255, 165, 0, 0.4);
}

.carcinoma-label {
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
    text-transform: uppercase;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    letter-spacing: 1px;
}

/* Gallery scroll milestone toast */
#gallery-milestone-toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: linear-gradient(135deg, #ff922b, #ffd93d);
    color: #1a1a2e;
    font-size: 1.1rem;
    font-weight: 700;
    padding: 0.85rem 2rem;
    border-radius: 50px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 9999;
    opacity: 0;
    transition: opacity 0.35s ease, transform 0.35s ease;
    pointer-events: none;
    white-space: nowrap;
}

#gallery-milestone-toast.gallery-milestone-toast--visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Gallery Results Modal */
.gallery-results-modal {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-results-modal[hidden] {
    display: none;
}

.gallery-results-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(4px);
}

.gallery-results-modal__box {
    position: relative;
    background: #1a1a2e;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 2.5rem 3rem;
    max-width: 560px;
    width: 90%;
    text-align: center;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
    animation: gallery-modal-pop 0.25s ease;
}

@keyframes gallery-modal-pop {
    from { transform: scale(0.88); opacity: 0; }
    to   { transform: scale(1);    opacity: 1; }
}

.gallery-results-modal__title {
    font-size: 1.6rem;
    font-weight: 700;
    color: #f8f8f8;
    margin: 0 0 1.8rem;
}

.gallery-results-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.gallery-stat {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 1.2rem 1rem;
}

.gallery-stat__value {
    font-size: 2rem;
    font-weight: 800;
    color: #ff922b;
    line-height: 1;
    margin-bottom: 0.35rem;
}

.gallery-stat__label {
    font-size: 0.8rem;
    font-weight: 700;
    color: #ccc;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.2rem;
}

/* Responsive Gallery */
@media (max-width: 1400px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .gallery-container {
        padding: 20px 15px;
    }
    
    .carcinoma-label {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: repeat(1, 1fr);
        gap: 15px;
    }
    
    .gallery-container {
        padding: 15px 10px;
    }
}