:root {
    --color-primary: #00BCD4;
    --color-secondary: #26C6DA;
    --color-accent: #00ACC1;
    --color-success: #4CAF50;
    --color-warning: #FFC107;
    --color-danger: #F44336;
    --color-dark: #1A237E;
    --color-light: #E0F7FA;
    --color-white: #FFFFFF;
    --color-gray: #757575;
    --color-gray-light: #F5F5F5;

    --gradient-primary: linear-gradient(135deg, #00BCD4 0%, #26C6DA 100%);
    --gradient-hero: linear-gradient(135deg, #00ACC1 0%, #00BCD4 50%, #26C6DA 100%);

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(to bottom, #E0F7FA 0%, #FFFFFF 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    background: white;
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.logo {
    height: 80px;
    width: auto;
}

.app-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1565C0;
    margin: 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

/* Screen Management */
.screen {
    display: none;
    min-height: calc(100vh - 200px);
    padding: 40px 0;
}

.screen.active {
    display: block;
    animation: fadeIn 0.5s ease-in;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Hero Section */
.hero {
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: 40px;
}

.hero-title {
    font-size: 2.5rem;
    color: var(--color-dark);
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--color-gray);
    margin-bottom: 20px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-message {
    font-size: 1.3rem;
    color: var(--color-primary);
    font-weight: 600;
    margin: 30px 0;
}

/* Benefits */
.benefits {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 40px 0;
}

.benefit-item {
    padding: 20px;
    background: var(--color-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.benefit-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 10px;
}

.benefit-item p {
    font-weight: 600;
    color: var(--color-dark);
}

/* How It Works */
.how-it-works {
    background: white;
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.how-it-works h3 {
    text-align: center;
    font-size: 2rem;
    color: var(--color-dark);
    margin-bottom: 40px;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.step-card {
    background: var(--gradient-primary);
    color: white;
    padding: 30px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
}

.step-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.step-number {
    width: 60px;
    height: 60px;
    background: white;
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-card h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

/* Card */
.card {
    background: white;
    padding: 40px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    margin-bottom: 30px;
}

/* Buttons */
.btn {
    padding: 15px 30px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    text-align: center;
    text-decoration: none;
    margin: 5px;
}

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

.btn:active {
    transform: translateY(0);
}

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

.btn-primary:hover {
    filter: brightness(1.1);
}

.btn-secondary {
    background: var(--color-gray-light);
    color: var(--color-dark);
}

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

.btn-cta {
    background: linear-gradient(135deg, #FF6B6B 0%, #FF8E53 100%);
    color: white;
    font-size: 1.1rem;
    padding: 18px 40px;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 rgba(255, 107, 107, 0.7);
    }

    50% {
        box-shadow: 0 0 0 10px rgba(255, 107, 107, 0);
    }
}

.btn-large {
    font-size: 1.3rem;
    padding: 20px 50px;
}

/* Form Elements */
.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--color-dark);
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--color-light);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 188, 212, 0.1);
}

/* Progress Bar */
.progress-bar {
    background: var(--color-gray-light);
    height: 40px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 30px;
    position: relative;
}

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

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-weight: 600;
    color: var(--color-dark);
    z-index: 1;
}

/* Question Card */
.question-card {
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.question-text {
    font-size: 1.5rem;
    color: var(--color-dark);
    margin-bottom: 40px;
    text-align: center;
}

.answer-options {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

.answer-btn {
    padding: 20px;
    border: 3px solid var(--color-light);
    background: white;
    border-radius: var(--radius-md);
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.answer-btn:hover {
    border-color: var(--color-primary);
    background: var(--color-light);
    transform: translateX(10px);
}

.answer-btn:active {
    transform: scale(0.98);
}

/* Semaphore */
.semaphore-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.semaphore {
    background: #333;
    padding: 20px;
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    gap: 15px;
    box-shadow: var(--shadow-lg);
}

.semaphore-light {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: #555;
    transition: var(--transition);
}

.semaphore-light.active.red {
    background: var(--color-danger);
    box-shadow: 0 0 30px var(--color-danger);
}

.semaphore-light.active.yellow {
    background: var(--color-warning);
    box-shadow: 0 0 30px var(--color-warning);
}

.semaphore-light.active.green {
    background: var(--color-success);
    box-shadow: 0 0 30px var(--color-success);
}

.score-display {
    text-align: center;
}

.score-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 10px;
}

.score-label {
    font-size: 1.2rem;
    color: var(--color-gray);
    font-weight: 600;
}

/* Result Message */
.result-message {
    background: var(--color-light);
    padding: 30px;
    border-radius: var(--radius-lg);
    margin: 30px 0;
    border-left: 5px solid var(--color-primary);
}

.result-message h3 {
    color: var(--color-dark);
    margin-bottom: 15px;
    font-size: 1.8rem;
}

.result-message p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}

/* Recommendations */
.recommendations {
    margin: 30px 0;
}

.recommendations h4 {
    color: var(--color-dark);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.recommendations ul {
    list-style: none;
    padding: 0;
}

.recommendations li {
    padding: 15px;
    background: white;
    border-left: 4px solid var(--color-primary);
    margin-bottom: 10px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

/* Action Buttons */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-top: 40px;
}

/* Area Selector */
.area-selector {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
    justify-content: center;
}

.area-btn {
    padding: 12px 20px;
    border: 2px solid var(--color-primary);
    background: white;
    color: var(--color-primary);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.area-btn:hover {
    background: var(--color-light);
}

.area-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--color-primary);
}

.area-btn.completed {
    background: var(--color-success);
    color: white;
    border-color: var(--color-success);
}

/* Extended Results */
.overall-score-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 60px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.circular-chart-container {
    position: relative;
    width: 250px;
    height: 250px;
}

.chart-center-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.chart-percentage {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 5px;
}

.chart-label {
    font-size: 1rem;
    color: var(--color-gray);
    font-weight: 600;
}

.overall-description {
    flex: 1;
    min-width: 300px;
    max-width: 500px;
}

.overall-description h3 {
    color: var(--color-dark);
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.overall-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #555;
}

.area-results {
    display: grid;
    gap: 15px;
    margin: 30px 0;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.area-result-card {
    background: white;
    padding: 20px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border-left: 5px solid var(--color-gray);
    transition: var(--transition);
}

.area-result-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.area-result-card.red {
    border-left-color: var(--color-danger);
}

.area-result-card.yellow {
    border-left-color: var(--color-warning);
}

.area-result-card.green {
    border-left-color: var(--color-success);
}

.area-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.area-result-header h4 {
    font-size: 1.1rem;
    color: var(--color-dark);
    margin: 0;
}

.area-result-score {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.area-recommendations {
    display: grid;
    gap: 20px;
    margin: 30px 0;
}

.area-recommendation-card {
    background: var(--color-light);
    padding: 25px;
    border-radius: var(--radius-lg);
    border-left: 5px solid var(--color-primary);
}

.area-recommendation-card h4 {
    color: var(--color-dark);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.area-recommendation-card p {
    color: #555;
    line-height: 1.8;
    margin-bottom: 10px;
}

.area-recommendation-card ul {
    list-style: none;
    padding: 0;
    margin-top: 15px;
}

.area-recommendation-card li {
    padding: 10px 15px;
    background: white;
    margin-bottom: 8px;
    border-radius: var(--radius-sm);
    position: relative;
    padding-left: 35px;
}

.area-recommendation-card li::before {
    content: "→";
    position: absolute;
    left: 15px;
    color: var(--color-primary);
    font-weight: 700;
}

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

/* Footer */
.footer {
    background: var(--color-dark);
    color: white;
    padding: 30px 0;
    text-align: center;
    margin-top: 60px;
}

.footer-note {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-top: 10px;
}

.footer-contact {
    margin-top: 15px;
    font-weight: 600;
}

/* Utility Classes */
.subtitle {
    text-align: center;
    color: var(--color-gray);
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.time-estimate {
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-primary);
    font-weight: 600;
    margin: 20px 0;
}

.disclaimer {
    text-align: center;
    font-size: 0.9rem;
    color: var(--color-gray);
    font-style: italic;
    margin: 20px 0;
}

.instruction-list {
    list-style: none;
    padding: 0;
    margin: 30px 0;
}

.instruction-list li {
    padding: 15px;
    background: var(--color-light);
    margin-bottom: 10px;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    position: relative;
    padding-left: 40px;
}

.instruction-list li::before {
    content: "✓";
    position: absolute;
    left: 15px;
    color: var(--color-success);
    font-weight: 700;
    font-size: 1.3rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .benefits {
        grid-template-columns: 1fr;
    }

    .steps {
        grid-template-columns: 1fr;
    }

    .semaphore-container {
        flex-direction: column;
        gap: 30px;
    }

    .score-number {
        font-size: 3rem;
    }

    .action-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .area-selector {
        flex-direction: column;
    }

    .area-btn {
        width: 100%;
    }

    .card {
        padding: 20px;
    }

    .app-title {
        font-size: 1.5rem;
    }
}

/* Print Styles */
@media print {

    .header,
    .footer,
    .btn,
    .navigation-buttons {
        display: none;
    }

    .screen {
        display: block !important;
    }

    body {
        background: white;
    }
}