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

:root {
    /* Element colors - for borders only */
    --earth-color: #8b4513;
    --water-color: #3b82f6;
    --fire-color: #ef4444;
    --air-color: #06b6d4;
    --ether-color: #8b5cf6;
    
    /* Base colors */
    --bg-color: #ffffff;
    --card-bg: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #78716c;
    --text-tertiary: #a8a29e;
    --border-color: #d6d3d1;
    --border-light: #e7e5e4;
    
    /* UI colors */
    --primary-border: #1a1a1a;
    --primary-hover: #78716c;
    
    /* Effects */
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-color);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.screen {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Intro Screen */
#intro-screen h1 {
    font-size: 1.75rem;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 0.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1rem;
    font-weight: 400;
}

.instruction-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.instruction-card h2 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.instruction-card p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    line-height: 1.5;
}

.scale-legend {
    list-style: none;
    margin: 1rem 0;
}

.scale-legend li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.6rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.scale-value {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 28px;
    border: 1px solid var(--primary-border);
    color: var(--text-primary);
    border-radius: 50%;
    font-weight: 600;
    font-size: 0.85rem;
    margin-right: 0.75rem;
    flex-shrink: 0;
}

.highlight {
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    margin-top: 1rem;
    background: transparent;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--primary-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    background: transparent;
}

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

.btn-primary:hover:not(:disabled) {
    border-color: var(--primary-hover);
    color: var(--primary-hover);
}

.btn-primary:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    border-color: var(--border-light);
    color: var(--text-tertiary);
}

.btn-secondary {
    color: var(--text-primary);
    border-color: var(--border-color);
    margin-top: 1rem;
}

.btn-secondary:hover {
    border-color: var(--text-secondary);
    color: var(--text-secondary);
}

/* Test Screen */
.progress-container {
    background: var(--card-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1rem;
}

.progress-bar {
    height: 6px;
    background: var(--border-light);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-fill {
    height: 100%;
    background: var(--text-primary);
    border-radius: 3px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
    display: block;
}

.question-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.block-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    text-align: center;
    font-weight: 600;
}

.block-title.earth { color: var(--earth-color); border-bottom: 1px solid var(--earth-color); padding-bottom: 0.5rem; }
.block-title.water { color: var(--water-color); border-bottom: 1px solid var(--water-color); padding-bottom: 0.5rem; }
.block-title.fire { color: var(--fire-color); border-bottom: 1px solid var(--fire-color); padding-bottom: 0.5rem; }
.block-title.air { color: var(--air-color); border-bottom: 1px solid var(--air-color); padding-bottom: 0.5rem; }
.block-title.ether { color: var(--ether-color); border-bottom: 1px solid var(--ether-color); padding-bottom: 0.5rem; }

.question-text {
    font-size: 1.15rem;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 2rem;
    line-height: 1.5;
    font-weight: 500;
}

.scale-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.scale-label {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    font-weight: 500;
}

.scale-options {
    display: flex;
    gap: 8px;
    flex: 1;
    justify-content: center;
    margin: 0 1rem;
}

.scale-option {
    width: 44px;
    height: 44px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.scale-option:hover {
    border-color: var(--text-primary);
}

.scale-option.selected {
    border: 2px solid var(--text-primary);
    background: var(--text-primary);
    color: var(--bg-color);
}

.scale-description {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Results Screen */
#results-screen h1 {
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
    font-weight: 700;
}

.results-summary {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.result-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--border-light);
}

.result-item:last-child {
    border-bottom: none;
}

.result-name {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.result-icon {
    font-size: 1.3rem;
}

.result-value {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.result-score {
    font-weight: 700;
    font-size: 1.1rem;
    min-width: 30px;
    text-align: right;
}

.result-score.earth { color: var(--earth-color); }
.result-score.water { color: var(--water-color); }
.result-score.fire { color: var(--fire-color); }
.result-score.air { color: var(--air-color); }
.result-score.ether { color: var(--ether-color); }

.result-status {
    padding: 0.25rem 0.625rem;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid;
}

.result-status.deficit {
    border-color: #d97706;
    color: #d97706;
    background: transparent;
}

.result-status.norm {
    border-color: #059669;
    color: #059669;
    background: transparent;
}

.result-status.excess {
    border-color: #dc2626;
    color: #dc2626;
    background: transparent;
}

.results-details {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.detail-block {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

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

.detail-block h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.detail-block h3.earth { color: var(--earth-color); }
.detail-block h3.water { color: var(--water-color); }
.detail-block h3.fire { color: var(--fire-color); }
.detail-block h3.air { color: var(--air-color); }
.detail-block h3.ether { color: var(--ether-color); }

.detail-block h3 .icon {
    font-size: 1.3rem;
}

.detail-content {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.detail-content p {
    margin-bottom: 0.75rem;
}

.detail-content h4 {
    color: var(--text-primary);
    font-size: 0.9rem;
    margin: 1rem 0 0.5rem;
    font-weight: 600;
}

.detail-content ul {
    margin-left: 1rem;
    margin-bottom: 0.75rem;
}

.detail-content li {
    margin-bottom: 0.25rem;
    color: var(--text-secondary);
}

/* Extended version styles - Resource/Deficit levels */
.result-value-dual {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-end;
}

.result-score-pair {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.result-label {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.result-level {
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: 1px solid;
}

.result-level.low {
    border-color: #d97706;
    color: #d97706;
    background: transparent;
}

.result-level.norm {
    border-color: #059669;
    color: #059669;
    background: transparent;
}

.result-level.high {
    border-color: #dc2626;
    color: #dc2626;
    background: transparent;
}

.result-scores-inline {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: var(--border-light);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.result-scores-inline span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

/* Responsive adjustments */
@media (max-width: 380px) {
    .container {
        padding: 15px;
    }

    #intro-screen h1 {
        font-size: 1.5rem;
    }

    .question-text {
        font-size: 1.05rem;
    }

    .scale-option {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .result-scores-inline {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (min-width: 501px) {
    .container {
        padding: 30px;
    }

    #intro-screen h1 {
        font-size: 2rem;
    }
}