/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Symend Brand Colors */
    --primary-color: #1897F2;
    --primary-dark: #156B6D;
    --primary-light: #4DA6A8;
    --secondary-color: #16D1CC;
    --accent-color: #F39C12;
    --text-dark: #0B2540;
    --text-light: #F2F4F9;
    --background: #FFFFFF;
    --background-light: #F8F9FA;
    --border-color: #E9ECEF;
    --success-color: #27AE60;
    --warning-color: #F39C12;
    --error-color: #E74C3C;
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xl: 2.5rem;
    --font-size-lg: 2rem;
    --font-size-md: 1.5rem;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Borders and Shadows */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.15);
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--text-dark);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    min-height: 100vh;
    line-height: 1.6;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow-x: hidden;
    width: 100%;
}

/* Container and Layout */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    width: 100%;
    box-sizing: border-box;
}

.section {
    display: none;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    width: 100%;
    overflow-x: hidden;
}

.section.active {
    display: flex;
}

/* Cards */
.hero,
.form-card,
.quiz-card,
.result-card,
.intro-card,
.challenge-card,
.score-card,
.leaderboard-card {
    background: var(--background);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    text-align: center;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    box-sizing: border-box;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

/* Typography */
.title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.subtitle {
    font-size: var(--font-size-md);
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.50;
}

.text {
    font-size: var(--font-size-sm);
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.25;
}

h2 {
    font-size: var(--font-size-lg);
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
    font-weight: var(--font-weight-medium);
}

h3 {
    font-size: var(--font-size-md);
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-weight: var(--font-weight-medium);
}

/* Logo Styles */
.logo-container {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.symend-logo {
    max-width: 120px;
    max-height: 120px;
    width: auto;
    height: auto;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
    transition: transform 0.3s ease;
}

.symend-logo:hover {
    transform: scale(1.05);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 140px;
    margin: var(--spacing-xs);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--background-light);
    color: var(--text-dark);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
    transform: translateY(-2px);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    min-width: auto;
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.form-group label {
    display: block;
    font-weight: var(--font-weight-medium);
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.form-group input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 138, 140, 0.1);
}

.privacy-notice {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--background-light);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
    text-align: left;
}

.privacy-text {
    font-size: var(--font-size-sm);
    color: var(--text-dark);
    line-height: 1.5;
    margin: 0;
}

.privacy-text a {
    color: var(--primary-color);
    text-decoration: underline;
    font-weight: var(--font-weight-medium);
    transition: color 0.3s ease;
}

.privacy-text a:hover {
    color: var(--primary-dark);
    text-decoration: none;
}

/* Quiz Progress */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--background-light);
    border-radius: 4px;
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    width: 0%;
    transition: width 0.5s ease;
}

.question-counter {
    font-size: var(--font-size-sm);
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
}

/* Options */
.options {
    margin: var(--spacing-lg) 0;
}

.option {
    background: var(--background-light);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
}

.option:hover {
    border-color: var(--primary-color);
    background: rgba(30, 138, 140, 0.05);
    transform: translateY(-2px);
}

.option.selected {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
}

/* Score Display */
.score-display {
    margin: var(--spacing-lg) 0;
}

.score-number {
    font-size: 4rem;
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    line-height: 1;
}

.score-label {
    font-size: var(--font-size-lg);
    color: var(--text-dark);
    margin-top: var(--spacing-sm);
}

.scientist-level {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-lg);
    background: var(--background-light);
    border-radius: var(--border-radius);
}

.scientist-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.scientist-icon {
    font-size: 2rem;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.scientist-level h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    background: linear-gradient(45deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-align: center;
}

.scientist-description {
    color: var(--text-dark);
    font-size: var(--font-size-base);
    line-height: 1.6;
    text-align: center;
    margin: var(--spacing-md) 0 0 0;
    padding: var(--spacing-md);
    background: rgba(30, 138, 140, 0.05);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.scientist-description p {
    line-height: 1.7;
    font-size: var(--font-size-base);
    color: var(--text-dark);
    margin: 0;
}

.scientist-description p:last-child {
    opacity: 0.9;
}

/* Enhanced Profile Styles */
.profile-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.profile-header h3 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.profile-subtitle {
    font-size: var(--font-size-base);
    color: var(--text-dark);
    font-style: italic;
    margin: 0;
}

.profile-description {
    text-align: left;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--background-light);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.profile-description p {
    line-height: 1.7;
    font-size: var(--font-size-base);
    color: var(--text-dark);
    margin: 0;
}

.behavioral-tactics {
    text-align: left;
}

.behavioral-tactics h4 {
    font-size: var(--font-size-md);
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    font-weight: var(--font-weight-medium);
}

.tactics-container {
    display: grid;
    gap: var(--spacing-lg);
}

.tactic-card {
    background: var(--background);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.tactic-card:hover {
    border-color: var(--primary-light);
    box-shadow: var(--shadow-md);
}

.tactic-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.tactic-icon {
    font-size: 1.2em;
}

.tactic-description {
    font-size: var(--font-size-sm);
    color: var(--text-dark);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.tactic-why {
    margin-top: var(--spacing-sm);
    margin-left: var(--spacing-md);
    --border-left: 2px solid var(--border-color);
    padding-left: var(--spacing-sm);
}

.why-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--primary-color);
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.why-text {
    font-size: var(--font-size-sm);
    color: var(--text-dark);
    line-height: 1.5;
    margin: 0;
    font-style: italic;
}

.score-actions {
    margin-top: var(--spacing-xl);
}

/* Leaderboard */
.leaderboard-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.leaderboard-table {
    overflow-x: auto;
    margin-top: var(--spacing-lg);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--font-size-sm);
}

th {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-md);
    text-align: left;
    font-weight: var(--font-weight-medium);
}

td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

tr:nth-child(even) {
    background: var(--background-light);
}

tr.current-user {
    background: rgba(30, 138, 140, 0.1);
    font-weight: var(--font-weight-medium);
}

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

.admin-content {
    background: var(--background);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 900px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.admin-header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.admin-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.admin-tab {
    flex: 1;
    padding: var(--spacing-md);
    border: none;
    background: var(--background-light);
    color: var(--text-dark);
    cursor: pointer;
    transition: all 0.3s ease;
}

.admin-tab.active {
    background: var(--primary-color);
    color: white;
}

.admin-tab-content {
    display: none;
    padding: var(--spacing-lg);
}

.admin-tab-content.active {
    display: block;
}

.admin-actions {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

/* Admin Login Styles */
.admin-login-content {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.admin-login-card {
    background: var(--background);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.admin-login-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-md);
}

.admin-login-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.admin-login-actions .btn {
    flex: 1;
    margin: 0;
}

.admin-login-error {
    color: var(--error-color);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    background: rgba(231, 76, 60, 0.1);
    border-radius: var(--border-radius);
    border: 1px solid rgba(231, 76, 60, 0.3);
}

/* Challenge Specific */
.challenge-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.scenario-counter {
    font-size: var(--font-size-sm);
    color: var(--text-dark);
    background: var(--background-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

.scenario-prompt {
    font-size: var(--font-size-base);
    color: var(--primary-color);
    margin: var(--spacing-lg) 0 var(--spacing-md) 0;
    text-align: center;
}

/* Challenge Introduction Styles */
.intro-card {
    max-width: 700px;
    text-align: left;
}

.intro-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.intro-header h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.intro-badge {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    display: inline-block;
    font-weight: var(--font-weight-medium);
    box-shadow: var(--shadow-sm);
}

.intro-content {
    margin-bottom: var(--spacing-xl);
}

.intro-section {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--background-light);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-color);
}

.intro-section h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-md);
}

.intro-section ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.intro-section li {
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.intro-steps {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.step {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.step-number {
    background: var(--primary-color);
    color: white;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-md);
    flex-shrink: 0;
}

.step-text {
    font-weight: var(--font-weight-medium);
    color: var(--text-dark);
}

.achievement-preview {
    display: grid;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--background);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.achievement-icon {
    font-size: 1.5rem;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.achievement-name {
    flex: 1;
    font-weight: var(--font-weight-medium);
    color: var(--text-dark);
}

.achievement-score {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    background: var(--background-light);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

.intro-actions {
    text-align: center;
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* Loading Spinner */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }
    
    .hero,
    .form-card,
    .quiz-card,
    .result-card,
    .challenge-card,
    .score-card,
    .leaderboard-card {
        padding: var(--spacing-lg);
    }
    
    .title {
        font-size: var(--font-size-lg);
    }
    
    .subtitle {
        font-size: var(--font-size-base);
    }
    
    .score-number {
        font-size: 3rem;
    }
    
    .challenge-header {
        text-align: center;
    }
    
    .challenge-header h2 {
        margin-bottom: var(--spacing-sm);
    }
    
    .leaderboard-controls {
        flex-direction: column;
        text-align: center;
    }
    
    .admin-content {
        width: 95%;
        margin: var(--spacing-sm);
    }
    
    .admin-tabs {
        flex-direction: column;
    }
    
    table {
        font-size: 0.75rem;
    }
    
    th, td {
        padding: var(--spacing-xs);
    }
    
    .intro-actions {
        flex-direction: column;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .achievement-item {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .symend-logo {
        max-width: 80px;
        max-height: 80px;
    }
    
    /* Enhanced Profile Mobile Styles */
    .profile-header h3 {
        font-size: var(--font-size-md);
    }
    
    .profile-subtitle {
        font-size: var(--font-size-sm);
    }
    
    .profile-description {
        padding: var(--spacing-md);
    }
    
    .tactic-card {
        padding: var(--spacing-md);
    }
    
    .tactic-title {
        font-size: var(--font-size-sm);
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-xs);
    }
    
    .why-label {
        font-size: 0.65rem;
    }
    
    .entry-notification {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .entry-text {
        font-size: var(--font-size-sm);
        line-height: 1.4;
    }
    
    .video-container iframe {
        height: 400px !important;
        border-radius: 0 !important;
    }
    
    .iframe-wrapper {
        height: 400px;
    }
    
    .video-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .video-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    body {
        padding: var(--spacing-sm);
    }
    
    .container {
        padding: var(--spacing-sm);
    }
    
    .hero,
    .form-card,
    .quiz-card,
    .result-card,
    .challenge-card,
    .score-card,
    .leaderboard-card {
        padding: var(--spacing-md);
    }
    
    .title {
        font-size: var(--font-size-md);
        line-height: 1.3;
    }
    
    .subtitle {
        font-size: var(--font-size-sm);
        line-height: 1.4;
    }
    
    .text {
        font-size: var(--font-size-sm);
        line-height: 1.5;
    }
    
    h2 {
        font-size: var(--font-size-md);
        margin-bottom: var(--spacing-md);
    }
    
    h3 {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
        margin: var(--spacing-xs) 0;
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .score-actions {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .option {
        padding: var(--spacing-md);
        font-size: var(--font-size-sm);
        line-height: 1.4;
    }
    
    .form-group input {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
    
    .progress-bar {
        margin-bottom: var(--spacing-md);
    }
    
    .question-counter {
        font-size: 0.75rem;
        margin-bottom: var(--spacing-md);
    }
    
    .scenario-counter {
        font-size: 0.75rem;
        padding: var(--spacing-xs);
    }
    
    .scenario-prompt {
        font-size: var(--font-size-sm);
        margin: var(--spacing-md) 0 var(--spacing-sm) 0;
    }
    
    .tactic-description {
        font-size: 0.8rem;
        line-height: 1.5;
    }
    
    .why-text {
        font-size: 0.75rem;
        line-height: 1.4;
    }
    
    .intro-section {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .intro-section h3 {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-sm);
    }
    
    .intro-section p {
        font-size: var(--font-size-sm);
        line-height: 1.5;
    }
    
    .entry-notification {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }
    
    .entry-text {
        font-size: 0.85rem;
        line-height: 1.4;
    }
    
    .video-container iframe {
        height: 300px !important;
        border-radius: 0 !important;
    }
    
    .video-card {
        padding: var(--spacing-md);
    }
    
    .privacy-notice {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-md);
    }
    
    .privacy-text {
        font-size: 0.8rem;
        line-height: 1.4;
    }
    
    .progress-bar {
        margin-bottom: var(--spacing-md);
    }
}

/* Extra narrow screens (very small phones) */
@media (max-width: 360px) {
    body {
        padding: var(--spacing-xs);
    }
    
    .container {
        padding: var(--spacing-xs);
    }
    
    .hero,
    .form-card,
    .quiz-card,
    .result-card,
    .challenge-card,
    .score-card,
    .leaderboard-card {
        padding: var(--spacing-sm);
        margin: var(--spacing-xs);
    }
    
    .title {
        font-size: var(--font-size-base);
        line-height: 1.2;
        margin-bottom: var(--spacing-sm);
    }
    
    .subtitle {
        font-size: 0.85rem;
        line-height: 1.4;
        margin-bottom: var(--spacing-sm);
    }
    
    .text {
        font-size: 0.8rem;
        line-height: 1.5;
        margin-bottom: var(--spacing-sm);
    }
    
    h2 {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-sm);
    }
    
    .option {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
        font-size: 0.8rem;
        line-height: 1.4;
    }
    
    .btn {
        padding: var(--spacing-sm);
        font-size: 0.8rem;
        min-width: auto;
    }
    
    .symend-logo {
        max-width: 60px;
        max-height: 60px;
    }
    
    .score-number {
        font-size: 2.5rem;
    }
    
    .scientist-icon {
        font-size: 1.5rem;
    }
    
    .tactic-card {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }
    
    .tactic-title {
        font-size: 0.8rem;
        margin-bottom: var(--spacing-xs);
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-xs);
    }
    
    .tactic-description {
        font-size: 0.75rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .why-text {
        font-size: 0.7rem;
    }
    
    .intro-section {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }
    
    .intro-section h3 {
        font-size: 0.9rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .intro-section p {
        font-size: 0.8rem;
        line-height: 1.5;
        margin-bottom: var(--spacing-xs);
    }
    
    .entry-notification {
        padding: var(--spacing-xs) var(--spacing-sm);
        margin-bottom: var(--spacing-xs);
    }
    
    .entry-text {
        font-size: 0.8rem;
        line-height: 1.3;
    }
    
    .privacy-notice {
        padding: var(--spacing-xs);
        margin-bottom: var(--spacing-xs);
    }
    
    .privacy-text {
        font-size: 0.75rem;
        line-height: 1.3;
    }
    
    .splash-screen {
        padding: var(--spacing-xs);
        gap: var(--spacing-xs);
    }
    
    .splash-image {
        max-width: 100%;
        max-height: 60%;
    }
    
    .splash-overlay {
        padding: var(--spacing-xs);
        max-width: 98%;
    }
    
    .splash-text {
        font-size: 0.8rem;
        letter-spacing: 0.1px;
    }
}

/* Enhanced mobile fixes for all devices */
@media (max-width: 480px) and (orientation: portrait) {
    html {
        overflow-x: hidden;
        width: 100%;
    }
    
    body {
        padding: 8px;
        align-items: flex-start;
        padding-top: 15px;
        min-width: 0;
    }
    
    .container {
        padding: var(--spacing-xs);
        max-width: calc(100vw - 16px);
        min-width: 0;
    }
    
    .quiz-card,
    .challenge-card,
    .hero,
    .form-card,
    .result-card,
    .intro-card,
    .score-card,
    .leaderboard-card {
        max-width: 100%;
        margin: 0;
        padding: var(--spacing-sm);
        min-width: 0;
        overflow: hidden;
    }
    
    .option {
        word-break: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }
    
    h2, h3 {
        word-break: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }
    
    .question-counter,
    .scenario-counter {
        word-break: break-word;
    }
}

/* iOS Safari specific fixes */
@supports (-webkit-touch-callout: none) {
    body {
        -webkit-overflow-scrolling: touch;
        position: relative;
    }
    
    .container {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
    }
    
    .quiz-card,
    .challenge-card {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
        will-change: transform;
    }
}

/* iPhone specific media queries */
@media only screen 
  and (device-width: 375px) 
  and (device-height: 667px) 
  and (-webkit-device-pixel-ratio: 2),
only screen 
  and (device-width: 375px) 
  and (device-height: 812px) 
  and (-webkit-device-pixel-ratio: 3),
only screen 
  and (device-width: 414px) 
  and (device-height: 896px) 
  and (-webkit-device-pixel-ratio: 2),
only screen 
  and (device-width: 414px) 
  and (device-height: 896px) 
  and (-webkit-device-pixel-ratio: 3) {
    
    body {
        padding: 10px;
        align-items: flex-start;
        padding-top: 20px;
    }
    
    .container {
        padding: var(--spacing-sm);
        max-width: calc(100vw - 20px);
    }
    
    .quiz-card,
    .challenge-card,
    .hero,
    .form-card,
    .result-card,
    .intro-card,
    .score-card,
    .leaderboard-card {
        max-width: 100%;
        margin: 0;
        padding: var(--spacing-md);
    }
    
    .option {
        word-break: break-word;
        overflow-wrap: break-word;
    }
    
    h2 {
        word-break: break-word;
        overflow-wrap: break-word;
    }
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Accessibility */
.btn:focus,
.option:focus,
input:focus {
    outline: 3px solid rgba(30, 138, 140, 0.3);
    outline-offset: 2px;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

/* Splash Screen Styles */
.splash-screen {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    gap: var(--spacing-lg);
}

.splash-image {
    max-width: 100%;
    max-height: 80%;
    width: auto;
    height: auto;
    object-fit: contain;
    object-position: center;
    pointer-events: none; /* Allow clicks to pass through */
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.splash-overlay {
    position: relative;
    text-align: center;
    z-index: 2;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.2);
    pointer-events: none; /* Allow clicks to pass through */
    box-shadow: var(--shadow-md);
}

.splash-text {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: white;
    margin: 0;
    animation: pulse 2s infinite;
    letter-spacing: 0.5px;
    pointer-events: none; /* Allow clicks to pass through */
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

@keyframes pulse {
    0%, 100% { opacity: 0.9; }
    50% { opacity: 1; }
}

/* Video Section Styles */
.video-card {
    background: var(--background);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    isolation: isolate;
}

.video-card h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-lg);
}

.entry-notification {
    background: linear-gradient(135deg, var(--success-color) 0%, #2ECC71 100%);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.entry-text {
    color: white;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    margin: 0;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    line-height: 1.5;
}

.video-container {
    margin: var(--spacing-lg) 0;
    position: relative;
    background: transparent;
    z-index: 1;
    isolation: isolate;
    width: 100%;
    max-width: 100%;
    overflow: visible;
}

.iframe-wrapper {
    position: relative;
    width: 100%;
    height: 400px;
    background: transparent;
    overflow: visible;
    isolation: isolate;
    z-index: 1000;
}

.iframe-wrapper iframe,
.video-container iframe {
    border: none !important;
    border-radius: 0 !important;
    width: 100% !important;
    height: 400px !important;
    display: block !important;
    pointer-events: auto !important;
    touch-action: manipulation !important;
    z-index: 1000 !important;
    position: relative !important;
    background: transparent !important;
    isolation: isolate !important;
    transform: none !important;
    filter: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    overflow: visible !important;
    clip: none !important;
    clip-path: none !important;
}

/* Ensure VideoAsk controls are accessible */
.video-container iframe:focus {
    outline: none !important;
}

/* Prevent any app elements from interfering with VideoAsk */
.video-container * {
    pointer-events: none;
}

.video-container iframe {
    pointer-events: auto !important;
}

/* Remove any potential CSS that could interfere */
.video-container iframe,
.video-container iframe *,
.iframe-wrapper iframe,
.iframe-wrapper iframe * {
    box-shadow: none !important;
    text-shadow: none !important;
    outline: none !important;
    border: none !important;
    margin: 0 !important;
    padding: 0 !important;
    transform: none !important;
    transition: none !important;
    animation: none !important;
}

/* VideoAsk specific overrides */
.video-container [class*="button"],
.video-container [class*="btn"],
.video-container [class*="play"],
.video-container [id*="button"],
.video-container [id*="btn"],
.video-container [id*="play"],
.iframe-wrapper [class*="button"],
.iframe-wrapper [class*="btn"],
.iframe-wrapper [class*="play"],
.iframe-wrapper [id*="button"],
.iframe-wrapper [id*="btn"],
.iframe-wrapper [id*="play"] {
    pointer-events: auto !important;
    z-index: 9999 !important;
    position: relative !important;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    overflow: visible !important;
}

/* Ensure no global button styles interfere */
.video-container button,
.video-container input[type="button"],
.video-container input[type="submit"],
.iframe-wrapper button,
.iframe-wrapper input[type="button"],
.iframe-wrapper input[type="submit"] {
    all: revert !important;
    pointer-events: auto !important;
    z-index: 9999 !important;
}

.video-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

/* Mobile responsiveness for splash screen and video */
@media (max-width: 768px) {
    .splash-screen {
        padding: var(--spacing-md);
        gap: var(--spacing-md);
    }
    
    .splash-image {
        max-width: 95%;
        max-height: 70%;
    }
    
    .splash-overlay {
        padding: var(--spacing-sm) var(--spacing-lg);
        max-width: 90%;
    }
    
    .splash-text {
        font-size: var(--font-size-sm);
        letter-spacing: 0.3px;
    }
    
    .entry-notification {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .entry-text {
        font-size: var(--font-size-sm);
        line-height: 1.4;
    }
    
    .video-container iframe {
        height: 400px !important;
    }
    
    .iframe-wrapper {
        height: 400px;
    }
    
    .video-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .video-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .splash-screen {
        padding: var(--spacing-sm);
        gap: var(--spacing-sm);
    }
    
    .splash-image {
        max-width: 98%;
        max-height: 65%;
    }
    
    .splash-overlay {
        padding: var(--spacing-xs) var(--spacing-md);
        border-radius: var(--border-radius);
        max-width: 95%;
    }
    
    .splash-text {
        font-size: var(--font-size-sm);
        letter-spacing: 0.2px;
    }
    
    .video-container iframe {
        height: 300px !important;
        border-radius: 0 !important;
    }
    
    .iframe-wrapper {
        height: 400px;
    }
    
    .video-card {
        padding: var(--spacing-md);
    }
}

@media (max-width: 360px) {
    .splash-screen {
        padding: var(--spacing-xs);
        gap: var(--spacing-xs);
    }
    
    .splash-image {
        max-width: 100%;
        max-height: 60%;
    }
    
    .splash-overlay {
        padding: var(--spacing-xs);
        max-width: 98%;
    }
    
    .splash-text {
        font-size: 0.8rem;
        letter-spacing: 0.1px;
    }
}

.form-group input {
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

.privacy-notice {
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.privacy-text {
    font-size: 0.8rem;
    line-height: 1.4;
}

.progress-bar {
    margin-bottom: var(--spacing-md);
}

.video-container iframe {
    height: 400px !important;
    border-radius: 0 !important;
}

.iframe-wrapper {
    height: 400px;
}

.video-actions {
    flex-direction: column;
    align-items: center;
}