:root {
    /* Color Palette - Patronato SIAS */
    --patronato-blue-dark: #2C4B5E;
    --patronato-blue: #3A5F7D;
    --patronato-blue-light: #5B9BD5;
    --patronato-blue-lighter: #E8F1F7;
    --patronato-green: #88B04B;
    --patronato-gray: #F5F5F5;
    --patronato-white: #FFFFFF;
    --patronato-text: #333333;
    --patronato-border: #DDDDDD;
    
    /* Typography */
    --font-display: 'Roboto', 'Arial', sans-serif;
    --font-body: 'Open Sans', 'Arial', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border radius */
    --radius-sm: 2px;
    --radius-md: 4px;
    --radius-lg: 8px;
}

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

body {
    font-family: var(--font-body);
    background: var(--patronato-gray);
    color: var(--patronato-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.app-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    padding: var(--spacing-xl) 0;
    background: var(--patronato-blue-dark);
    color: white;
    position: relative;
    animation: fadeInDown 0.8s ease-out;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-ornament {
    width: 80px;
    height: 3px;
    background: var(--patronato-blue-light);
    margin: 0 auto var(--spacing-md);
}

.header-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
}

.header-subtitle {
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--patronato-blue-lighter);
}

/* Screen Management */
.screen {
    display: none;
    flex: 1;
    animation: fadeIn 0.5s ease-out;
}

.screen.active {
    display: flex;
    flex-direction: column;
}

/* Welcome Screen */
.welcome-content {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
    border-top: 4px solid var(--patronato-blue);
}

.welcome-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    animation: pulse 2s ease-in-out infinite;
}

.welcome-title {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--patronato-blue-dark);
    margin-bottom: var(--spacing-md);
}

.welcome-text {
    font-size: 1.05rem;
    color: var(--patronato-text);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.welcome-list {
    text-align: left;
    max-width: 500px;
    margin: var(--spacing-lg) auto;
    list-style: none;
}

.welcome-list li {
    padding: var(--spacing-sm);
    padding-left: var(--spacing-lg);
    position: relative;
    font-size: 1rem;
    color: var(--patronato-text);
}

.welcome-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--patronato-green);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Buttons */
.btn {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    padding: var(--spacing-md) var(--spacing-xl);
    border: 2px solid;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.btn-primary:hover {
    background: var(--patronato-blue-dark);
    border-color: var(--patronato-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(44, 75, 94, 0.3);
}

.btn-secondary {
    background: white;
    color: var(--patronato-blue);
    border-color: var(--patronato-blue);
}

.btn-secondary:hover {
    background: var(--patronato-blue);
    color: white;
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--patronato-border);
    border-radius: 0;
    overflow: hidden;
    margin-bottom: var(--spacing-xl);
}

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

/* Questionnaire */
.questionnaire-content {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    max-width: 700px;
    margin: 0 auto;
    width: 100%;
    border-top: 4px solid var(--patronato-blue);
}

.question-card {
    animation: slideIn 0.4s ease-out;
}

.question-number {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--patronato-blue);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
}

.question-text {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--patronato-blue-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.question-help {
    font-size: 0.95rem;
    color: var(--patronato-text);
    background: var(--patronato-blue-lighter);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--patronato-blue-light);
    margin-bottom: var(--spacing-lg);
}

/* Answer Options */
.answer-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.answer-option {
    background: white;
    border: 2px solid var(--patronato-border);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.answer-option:hover {
    border-color: var(--patronato-blue);
    background: var(--patronato-blue-lighter);
}

.answer-option.selected {
    border-color: var(--patronato-blue);
    background: var(--patronato-blue);
    color: white;
}

.answer-option input[type="radio"] {
    width: 20px;
    height: 20px;
    accent-color: var(--patronato-blue);
}

.answer-option label {
    cursor: pointer;
    font-size: 1.1rem;
    flex: 1;
}

.answer-option.selected label {
    color: white;
}

.answer-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--patronato-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.answer-input:focus {
    outline: none;
    border-color: var(--patronato-blue);
    box-shadow: 0 0 0 3px var(--patronato-blue-lighter);
}

/* Navigation Buttons */
.navigation-buttons {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

/* Results Screen */
.results-content {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-top: 4px solid var(--patronato-blue);
}

.result-header {
    text-align: center;
    padding-bottom: var(--spacing-xl);
    border-bottom: 2px solid var(--patronato-border);
    margin-bottom: var(--spacing-xl);
}

.result-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

.result-case-type {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--patronato-blue);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
}

.result-case-name {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--patronato-blue-dark);
    margin-bottom: var(--spacing-md);
}

.result-description {
    font-size: 1.05rem;
    color: var(--patronato-text);
    line-height: 1.8;
}

.automatic-badge {
    display: inline-block;
    background: var(--patronato-green);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: var(--spacing-md);
}

.non-automatic-badge {
    display: inline-block;
    background: #FF9800;
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: var(--spacing-md);
}

.result-section {
    margin-bottom: var(--spacing-xl);
}

.result-section-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--patronato-blue-dark);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--patronato-border);
}

.document-list {
    list-style: none;
    counter-reset: doc-counter;
}

.document-list li {
    counter-increment: doc-counter;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: var(--patronato-gray);
    border-left: 3px solid var(--patronato-blue);
    border-radius: var(--radius-sm);
    position: relative;
    padding-left: 50px;
}

.document-list li::before {
    content: counter(doc-counter);
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    background: var(--patronato-blue);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
}

.note-list {
    list-style: none;
}

.note-list li {
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: #FFF9E6;
    border-left: 3px solid var(--patronato-green);
    border-radius: var(--radius-sm);
}

.submission-method {
    background: var(--patronato-blue-dark);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-md);
}

.submission-method h4 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: white;
}

.submission-method p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.submission-method strong {
    color: var(--patronato-blue-light);
}

.deadline-alert {
    background: #FFEBEE;
    border: 2px solid #F44336;
    color: #C62828;
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-top: var(--spacing-md);
    font-weight: 600;
}

.action-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    justify-content: center;
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-xl) 0 var(--spacing-md);
    margin-top: auto;
    color: var(--patronato-text);
    background: var(--patronato-blue-dark);
    color: white;
}

.footer p {
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
}

.footer-disclaimer {
    font-size: 0.85rem;
    font-style: italic;
    color: var(--patronato-blue-lighter);
}

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

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .header-title {
        font-size: 2.5rem;
    }
    
    .header-subtitle {
        font-size: 1.1rem;
    }
    
    .welcome-content,
    .questionnaire-content,
    .results-content {
        padding: var(--spacing-lg);
    }
    
    .question-text {
        font-size: 1.5rem;
    }
    
    .navigation-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}