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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    transition: background 0.3s ease;
    position: relative;
    overflow-x: hidden;
}


body::after {
    content: '📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈 📉 📈';
    position: fixed;
    top: -20%;
    left: -20%;
    width: 140%;
    height: 140%;
    font-size: 180px;
    opacity: 0.08;
    line-height: 240px;
    letter-spacing: 80px;
    transform: rotate(-20deg);
    pointer-events: none;
    z-index: 0;
    animation: chartEmojis 30s linear infinite;
    word-wrap: break-word;
    overflow: hidden;
}

@keyframes chartEmojis {
    0% {
        transform: rotate(-20deg) translateY(-10%);
    }
    100% {
        transform: rotate(-20deg) translateY(10%);
    }
}

/* Dark mode styles */
body.dark-mode {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

body.dark-mode .container {
    background: #0f3460;
    color: #e8e8e8;
}

body.dark-mode h1,
body.dark-mode .metric-value,
body.dark-mode .chart-title,
body.dark-mode label,
body.dark-mode h3,
body.dark-mode p,
body.dark-mode strong,
body.dark-mode .comparison-card-title,
body.dark-mode .risk-breakdown-title,
body.dark-mode .score-description,
body.dark-mode .effective-pressure-note {
    color: #ffffff !important;
}

body.dark-mode .subtitle,
body.dark-mode .input-hint,
body.dark-mode .metric-label,
body.dark-mode .metric-subtext {
    color: #a0aec0;
}

body.dark-mode input {
    background: #1a1a2e;
    border-color: #2d3748;
    color: #e8e8e8;
}

body.dark-mode input:focus {
    border-color: #667eea;
    background: #16213e;
}

body.dark-mode .metric-card,
body.dark-mode .chart-container,
body.dark-mode .effective-pressure-note {
    background: #16213e;
}

body.dark-mode .score-description,
body.dark-mode .risk-bar-label {
    color: #cbd5e0;
}

.container {
    background: white;
    border-radius: 24px;
    padding: 48px;
    max-width: 600px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
}

.header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 32px;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 12px;
    font-family: 'Comic Sans MS', 'Comic Sans', 'Chalkboard SE', 'Chalkboard', 'Marker Felt', 'TSCu_Comic', cursive;
    text-shadow: 0 0 20px rgba(102, 126, 234, 0.6),
                 0 0 40px rgba(102, 126, 234, 0.4),
                 0 0 60px rgba(102, 126, 234, 0.2);
}

body.dark-mode h1 {
    text-shadow: 0 0 20px rgba(102, 126, 234, 0.8),
                 0 0 40px rgba(102, 126, 234, 0.6),
                 0 0 60px rgba(102, 126, 234, 0.4);
}

.subtitle {
    font-size: 16px;
    color: #718096;
}

.form-group {
    margin-bottom: 24px;
    position: relative;
}

label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 8px;
}

input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s;
    font-family: inherit;
}

input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

input.error {
    border-color: #fc8181;
    background-color: #fff5f5;
}

.input-hint {
    font-size: 13px;
    color: #a0aec0;
    margin-top: 6px;
}

.input-error {
    font-size: 13px;
    color: #e53e3e;
    margin-top: 6px;
    display: none;
}

.input-error.show {
    display: block;
}

.calculate-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 8px;
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

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

.calculate-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.action-buttons {
    display: none;
    gap: 12px;
    margin-top: 24px;
}

.action-buttons.show {
    display: flex;
}

.secondary-btn {
    flex: 1;
    padding: 12px;
    background: white;
    color: #667eea;
    border: 2px solid #667eea;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.secondary-btn:hover {
    background: #667eea;
    color: white;
}

.results {
    display: none;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 2px solid #e2e8f0;
}

.results.show {
    display: block;
    animation: fadeIn 0.5s;
}

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

.pressure-score {
    text-align: center;
    margin-bottom: 32px;
}

.score-label {
    font-size: 14px;
    color: #718096;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.score-badge {
    display: inline-block;
    padding: 16px 48px;
    border-radius: 50px;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.score-badge:hover {
    transform: scale(1.05);
}

.score-high {
    background: #fed7d7;
    color: #c53030;
}

.score-medium {
    background: #feebc8;
    color: #c05621;
}

.score-low {
    background: #c6f6d5;
    color: #2f855a;
}

.score-description {
    font-size: 15px;
    color: #4a5568;
    line-height: 1.6;
}

.metrics {
    display: grid;
    gap: 16px;
    margin-top: 24px;
}

.metric-card {
    background: #f7fafc;
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid #667eea;
    position: relative;
}

.metric-label {
    font-size: 13px;
    color: #718096;
    margin-bottom: 6px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.metric-value {
    font-size: 28px;
    font-weight: 700;
    color: #1a202c;
}

.metric-subtext {
    font-size: 14px;
    color: #718096;
    margin-top: 4px;
}

.tooltip-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background: #cbd5e0;
    color: white;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    cursor: help;
    position: relative;
}

.tooltip-icon:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 8px;
    padding: 8px 12px;
    background: #2d3748;
    color: white;
    font-size: 12px;
    font-weight: 400;
    border-radius: 6px;
    white-space: nowrap;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.tooltip-icon:hover::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 2px;
    border: 6px solid transparent;
    border-top-color: #2d3748;
    z-index: 1000;
}

.advanced-toggle {
    text-align: center;
    margin-top: 24px;
}

.toggle-btn {
    background: none;
    border: none;
    color: #667eea;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
}

.toggle-btn:hover {
    color: #764ba2;
}

.advanced-section {
    display: none;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e2e8f0;
}

.advanced-section.show {
    display: block;
    animation: fadeIn 0.3s;
}

.breakdown-warning {
    display: none;
    background: #fed7d7;
    color: #c53030;
    padding: 12px;
    border-radius: 8px;
    font-size: 13px;
    margin-top: 8px;
}

.breakdown-warning.show {
    display: block;
}

.effective-pressure-note {
    background: #edf2f7;
    padding: 12px;
    border-radius: 8px;
    margin-top: 16px;
    font-size: 13px;
    color: #2d3748;
    line-height: 1.6;
}

.chart-container {
    margin-top: 32px;
    padding: 24px;
    background: #f7fafc;
    border-radius: 12px;
}

.chart-title {
    font-size: 16px;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 16px;
}

#unlockChart {
    max-width: 100%;
    height: 200px;
    display: block;
}

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #2d3748;
    color: white;
    padding: 16px 24px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s;
    z-index: 1000;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 640px) {
    .container {
        padding: 32px 24px;
    }

    h1 {
        font-size: 26px;
        font-family: 'Comic Sans MS', 'Comic Sans', 'Chalkboard SE', 'Chalkboard', 'Marker Felt', 'TSCu_Comic', cursive;
    }

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

    .tooltip-icon:hover::after {
        white-space: normal;
        max-width: 200px;
    }
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

/* Loading state */
.loading {
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 3px solid #667eea;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Dark mode toggle */
.theme-toggle {
    position: fixed;
    top: 24px;
    right: 24px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 20px;
    transition: all 0.3s;
    z-index: 1000;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* Risk breakdown bars */
.risk-breakdown {
    margin-top: 24px;
    padding: 20px;
    background: #f7fafc;
    border-radius: 12px;
}

body.dark-mode .risk-breakdown {
    background: #16213e;
}

.risk-breakdown-title {
    font-size: 14px;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

body.dark-mode .risk-breakdown-title {
    color: #e8e8e8;
}

.risk-bar {
    margin-bottom: 16px;
}

.risk-bar:last-child {
    margin-bottom: 0;
}

.risk-bar-label {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    font-weight: 600;
    color: #4a5568;
    margin-bottom: 6px;
}

.risk-bar-track {
    height: 8px;
    background: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
}

body.dark-mode .risk-bar-track {
    background: #2d3748;
}

.risk-bar-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 1s ease-out;
}

.risk-bar-fill.high {
    background: linear-gradient(90deg, #fc8181 0%, #f56565 100%);
}

.risk-bar-fill.medium {
    background: linear-gradient(90deg, #f6ad55 0%, #ed8936 100%);
}

.risk-bar-fill.low {
    background: linear-gradient(90deg, #68d391 0%, #48bb78 100%);
}

/* Educational tooltips */
.educational-tooltip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: #667eea;
    color: white;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    cursor: help;
    margin-left: 6px;
    position: relative;
}

.educational-tooltip:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 8px;
    padding: 12px 16px;
    background: #2d3748;
    color: white;
    font-size: 13px;
    font-weight: 400;
    border-radius: 8px;
    white-space: normal;
    max-width: 280px;
    width: max-content;
    z-index: 1000;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    line-height: 1.5;
}

.educational-tooltip:hover::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 2px;
    border: 6px solid transparent;
    border-top-color: #2d3748;
    z-index: 1000;
}

/* Comparison mode */
.comparison-container {
    display: none;
    margin-top: 32px;
    padding: 24px;
    background: #f7fafc;
    border-radius: 12px;
}

body.dark-mode .comparison-container {
    background: #16213e;
}

.comparison-container.show {
    display: block;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.comparison-card {
    background: white;
    padding: 16px;
    border-radius: 12px;
    border: 2px solid #e2e8f0;
    position: relative;
}

body.dark-mode .comparison-card {
    background: #0f3460;
    border-color: #2d3748;
}

.comparison-card-title {
    font-size: 14px;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 12px;
}

body.dark-mode .comparison-card-title {
    color: #e8e8e8;
}

.comparison-metric {
    margin-bottom: 8px;
    font-size: 13px;
}

.comparison-metric-label {
    color: #718096;
}

.comparison-metric-value {
    font-weight: 600;
    color: #2d3748;
}

body.dark-mode .comparison-metric-value {
    color: #e8e8e8;
}

.comparison-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    background: #fc8181;
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Export button */
.export-btn {
    background: #48bb78;
    color: white;
}

.export-btn:hover {
    background: #38a169;
}

/* Chart hover info */
.chart-hover-info {
    position: absolute;
    background: #2d3748;
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 1000;
    white-space: nowrap;
}

.chart-hover-info.show {
    opacity: 1;
}

/* Number animation */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.metric-value.animating {
    animation: countUp 0.5s ease-out;
}

/* Mobile adjustments for new features */
@media (max-width: 640px) {
    .theme-toggle {
        top: 12px;
        right: 12px;
        padding: 6px 12px;
        font-size: 18px;
    }

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

    .educational-tooltip:hover::after {
        max-width: 220px;
        left: auto;
        right: 0;
        transform: translateX(0);
    }

    .score-badge {
        font-size: 28px;
        padding: 12px 32px;
    }
}