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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 0;
    color: #e0e0e0;
}

/* Header Styles */
.app-header {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    padding: 0.75rem 1rem;
    box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.logo {
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0;
}

.tagline {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 400;
    display: none;
}

.container {
    width: 100%;
    max-width: 900px;
    margin: 1rem auto;
    padding: 0 1rem;
    flex: 1;
}

.screen {
    display: none;
    background: #1e1e2e;
    border-radius: 1rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.screen.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

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

.content {
    padding: 1.5rem;
}

#questions-screen .content {
    padding: 2rem 1.5rem;
    min-height: 70vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

h2 {
    font-size: 1.4rem;
    margin-bottom: 2rem;
    line-height: 1.4;
    color: #e0e0e0;
}

#questions-screen h2 {
    font-size: 1.6rem;
    margin-bottom: 2.5rem;
}

h3 {
    font-size: 1.1rem;
    color: #e0e0e0;
    margin-bottom: 0.5rem;
}

p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #b0b0b0;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 0.95rem;
    color: #888;
    margin-bottom: 2rem;
}

.btn-primary, .btn-secondary {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: #2a2a3e;
    color: #8b5cf6;
    margin-top: 1rem;
    border: 2px solid #8b5cf6;
}

.btn-secondary:hover {
    background: #3a3a4e;
    box-shadow: 0 5px 20px rgba(139, 92, 246, 0.3);
}

.progress-bar {
    height: 4px;
    background: #2a2a3e;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    transition: width 0.3s ease;
    width: 0%;
}

.question-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.question-number-large {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    min-width: 60px;
}

.question-number {
    font-size: 0.9rem;
    color: #888;
    margin: 0;
}

.question-text-animated {
    animation: questionSlide 0.4s ease-out;
}

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

.options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.option-btn {
    padding: 1rem;
    font-size: 1rem;
    background: #2a2a3e;
    border: 2px solid #3a3a4e;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    color: #e0e0e0;
    position: relative;
}

.option-btn:hover {
    background: #3a3a4e;
    border-color: #6366f1;
    transform: translateX(4px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
}

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

.option-btn.selected {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
    border-color: #8b5cf6;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
    transform: translateX(4px);
}

.option-btn.selected::after {
    content: "✓";
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #8b5cf6;
    font-size: 1.25rem;
    font-weight: bold;
}

.trait-card {
    background: #2a2a3e;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid #6366f1;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.trait-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.trait-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: #e0e0e0;
}

.trait-score {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.trait-level {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.trait-level.high {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.trait-level.medium {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
    border: 1px solid rgba(251, 191, 36, 0.3);
}

.trait-level.low {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.trait-description {
    font-size: 0.95rem;
    color: #b0b0b0;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.improvements {
    background: #1e1e2e;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
    border: 1px solid #3a3a4e;
}

.improvements h4 {
    font-size: 1rem;
    color: #8b5cf6;
    margin-bottom: 0.75rem;
}

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

.improvements li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.9rem;
    color: #b0b0b0;
    line-height: 1.4;
}

.improvements li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: #8b5cf6;
    font-weight: bold;
}

@media (min-width: 768px) {
    .content {
        padding: 3rem;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
}


/* Welcome Screen Styles */
.welcome-hero {
    text-align: center;
    margin-bottom: 2.5rem;
}

.hero-description {
    font-size: 1.05rem;
    color: #b0b0b0;
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto;
}

.features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.feature-item {
    background: #2a2a3e;
    padding: 1.5rem;
    border-radius: 0.75rem;
    text-align: center;
    border: 1px solid #3a3a4e;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.2);
    border-color: #6366f1;
}

.feature-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.75rem;
}

.feature-item h3 {
    margin-bottom: 0.5rem;
    color: #e0e0e0;
}

.feature-item p {
    font-size: 0.95rem;
    color: #888;
    margin: 0;
}

.cta-section {
    text-align: center;
    margin-top: 2rem;
}

.results-intro {
    text-align: center;
    margin-bottom: 2rem;
    color: #888;
}

/* Footer Styles */
.app-footer {
    background: #1a1a2e;
    border-top: 1px solid rgba(99, 102, 241, 0.2);
    padding: 1rem;
    margin-top: 2rem;
}

.footer-content {
    max-width: 900px;
    margin: 0 auto;
}

.footer-section {
    display: none;
}

.footer-section h4 {
    font-size: 0.9rem;
    color: #8b5cf6;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.footer-section p {
    font-size: 0.8rem;
    color: #888;
    line-height: 1.5;
    margin: 0;
}

.footer-divider {
    display: none;
}

.footer-credits {
    text-align: center;
}

.footer-credits p {
    font-size: 0.8rem;
    color: #888;
    margin-bottom: 0.25rem;
}

.footer-credits strong {
    color: #8b5cf6;
    font-weight: 600;
}

.footer-note {
    font-size: 0.7rem !important;
    color: #666 !important;
    font-style: italic;
}

.privacy-badge {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.85rem !important;
    color: #8b5cf6 !important;
    margin-bottom: 0.75rem !important;
}

/* Privacy Notice */
.privacy-notice {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    padding: 1rem;
    border-radius: 0.75rem;
    margin-top: 1.5rem;
}

.privacy-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.privacy-notice p {
    font-size: 0.85rem;
    color: #b0b0b0;
    margin: 0;
    line-height: 1.5;
}

/* Navigation Buttons */
.navigation-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.btn-nav {
    flex: 1;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid #3a3a4e;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    background: #2a2a3e;
    color: #e0e0e0;
}

.btn-nav:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.btn-nav:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

.btn-back:not(:disabled) {
    border-color: #6366f1;
}

.btn-back:not(:disabled):hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: #8b5cf6;
}

.btn-next:not(:disabled) {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    border-color: transparent;
    color: white;
}

.btn-next:not(:disabled):hover {
    box-shadow: 0 5px 20px rgba(139, 92, 246, 0.4);
}

@media (min-width: 768px) {
    .content {
        padding: 3rem;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }

    .app-header {
        padding: 1.5rem 1rem;
    }

    .logo {
        font-size: 1.5rem;
        margin-bottom: 0.25rem;
    }

    .tagline {
        display: block;
        font-size: 0.9rem;
    }

    .container {
        margin: 2rem auto;
    }

    .features {
        grid-template-columns: repeat(3, 1fr);
    }

    .app-footer {
        padding: 2rem 1rem;
        margin-top: 3rem;
    }

    .footer-section {
        display: block;
        margin-bottom: 1.5rem;
    }

    .footer-section h4 {
        font-size: 1rem;
        margin-bottom: 0.75rem;
    }

    .footer-section p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .footer-divider {
        display: block;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.3), transparent);
        margin: 1.5rem 0;
    }

    .footer-content {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .footer-divider {
        grid-column: 1 / -1;
    }

    .footer-credits {
        grid-column: 1 / -1;
    }

    .footer-credits p {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }

    .footer-note {
        font-size: 0.8rem !important;
    }

    .privacy-badge {
        font-size: 0.9rem !important;
        padding: 0.6rem 1.25rem;
    }

    .privacy-notice {
        padding: 1.25rem;
    }

    .privacy-notice p {
        font-size: 0.9rem;
    }

    .question-number-large {
        font-size: 4rem;
        min-width: 80px;
    }

    .navigation-buttons {
        margin-top: 2.5rem;
    }

    .btn-nav {
        padding: 1rem 2rem;
        font-size: 1.05rem;
    }
}