:root{--color-primary: #1a365d;--color-primary-light: #2c5282;--color-primary-lighter: #3182ce;--color-secondary: #234e52;--color-secondary-light: #285e61;--color-success: #276749;--color-success-bg: #c6f6d5;--color-success-border: #9ae6b4;--color-warning: #744210;--color-warning-bg: #fefcbf;--color-warning-border: #f6e05e;--color-info: #2b6cb0;--color-info-bg: #bee3f8;--color-info-border: #90cdf4;--color-neutral: #4a5568;--color-neutral-bg: #e2e8f0;--color-neutral-border: #cbd5e0;--color-text: #1a202c;--color-text-muted: #4a5568;--color-text-light: #718096;--color-text-inverse: #ffffff;--color-bg: #f7fafc;--color-bg-card: #ffffff;--color-bg-elevated: #edf2f7;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--border-radius-sm: .25rem;--border-radius: .5rem;--border-radius-lg: .75rem;--border-width: 1px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px rgba(0, 0, 0, .1), 0 2px 4px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1), 0 4px 6px rgba(0, 0, 0, .05);--transition-fast: .15s ease;--transition-normal: .25s ease;--max-width: 48rem}[data-theme=dark]{--color-primary: #90cdf4;--color-primary-light: #63b3ed;--color-primary-lighter: #4299e1;--color-secondary: #81e6d9;--color-secondary-light: #4fd1c5;--color-success: #68d391;--color-success-bg: #1c4532;--color-success-border: #276749;--color-warning: #f6e05e;--color-warning-bg: #744210;--color-warning-border: #975a16;--color-info: #63b3ed;--color-info-bg: #2a4365;--color-info-border: #2b6cb0;--color-neutral: #a0aec0;--color-neutral-bg: #2d3748;--color-neutral-border: #4a5568;--color-text: #f7fafc;--color-text-muted: #a0aec0;--color-text-light: #718096;--color-text-inverse: #1a202c;--color-bg: #1a202c;--color-bg-card: #2d3748;--color-bg-elevated: #4a5568;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4), 0 2px 4px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .4), 0 4px 6px rgba(0, 0, 0, .3)}[data-theme=dark] .app-header,[data-theme=dark] .scenario-header{background:linear-gradient(135deg,#2d3748,#4a5568);color:#f7fafc}[data-theme=dark] .aha-section{background:linear-gradient(135deg,#44337a,#553c9a);border-color:#805ad5}[data-theme=dark] .aha-text{color:#e9d8fd}[data-theme=dark] .error-message{background:#742a2a;border-color:#c53030;color:#feb2b2}[data-theme=dark] .modal-backdrop{background:#000000b3}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--color-primary: #90cdf4;--color-primary-light: #63b3ed;--color-primary-lighter: #4299e1;--color-secondary: #81e6d9;--color-secondary-light: #4fd1c5;--color-success: #68d391;--color-success-bg: #1c4532;--color-success-border: #276749;--color-warning: #f6e05e;--color-warning-bg: #744210;--color-warning-border: #975a16;--color-info: #63b3ed;--color-info-bg: #2a4365;--color-info-border: #2b6cb0;--color-neutral: #a0aec0;--color-neutral-bg: #2d3748;--color-neutral-border: #4a5568;--color-text: #f7fafc;--color-text-muted: #a0aec0;--color-text-light: #718096;--color-text-inverse: #1a202c;--color-bg: #1a202c;--color-bg-card: #2d3748;--color-bg-elevated: #4a5568;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4), 0 2px 4px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .4), 0 4px 6px rgba(0, 0, 0, .3)}:root:not([data-theme=light]) .app-header{background:linear-gradient(135deg,#2d3748,#4a5568);color:#f7fafc}:root:not([data-theme=light]) .scenario-header{background:linear-gradient(135deg,#2d3748,#4a5568);color:#f7fafc}:root:not([data-theme=light]) .aha-section{background:linear-gradient(135deg,#44337a,#553c9a);border-color:#805ad5}:root:not([data-theme=light]) .aha-text{color:#e9d8fd}:root:not([data-theme=light]) .error-message{background:#742a2a;border-color:#c53030;color:#feb2b2}:root:not([data-theme=light]) .modal-backdrop{background:#000000b3}}*,*:before,*:after{box-sizing:border-box}html{font-size:16px;scroll-behavior:smooth}body{margin:0;font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text);background-color:var(--color-bg);min-height:100vh;display:flex;flex-direction:column}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;top:-100%;left:var(--space-md);background:var(--color-primary);color:var(--color-text-inverse);padding:var(--space-sm) var(--space-md);border-radius:var(--border-radius);z-index:1000;text-decoration:none}.skip-link:focus{top:var(--space-md)}:focus-visible{outline:3px solid var(--color-primary-lighter);outline-offset:2px}.hidden{display:none!important}.app-header{background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-light) 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var(--color-info-border)}.situation-text{margin:0;font-size:var(--font-size-lg);line-height:var(--line-height-relaxed);color:var(--color-text)}.scenario-details{padding:var(--space-lg)}.detail-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-md);margin-bottom:var(--space-lg)}.detail-item{display:flex;flex-direction:column;gap:var(--space-xs)}.detail-label{font-size:var(--font-size-sm);font-weight:600;color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.detail-value{font-size:var(--font-size-base);color:var(--color-text)}.symptoms-section{background:var(--color-warning-bg);padding:var(--space-md);border-radius:var(--border-radius);border-left:4px solid var(--color-warning-border)}.symptoms-list{margin:var(--space-sm) 0 0;padding-left:var(--space-lg)}.symptoms-list 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