:root{--bg: #ffffff;--bg-elevated: #f3f6f4;--surface: #ffffff;--surface-border: #e1e8e3;--text: #121814;--text-muted: #5c6b62;--accent: #16a34a;--accent-strong: #0f7a37;--accent-soft: #e6f6ec;--accent-contrast: #ffffff;--shadow: 0 8px 24px rgba(15, 35, 20, .08);--font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif}[data-theme=dark]{--bg: #0c100e;--bg-elevated: #141a17;--surface: #171e1a;--surface-border: #263029;--text: #eaf3ec;--text-muted: #9fb3a8;--accent: #4ade80;--accent-strong: #6ee7a0;--accent-soft: #16351f;--accent-contrast: #06170d;--shadow: 0 8px 28px rgba(0, 0, 0, .45)}*{box-sizing:border-box}html,body{margin:0;padding:0}html,body,#app{min-height:100%}body{background-color:var(--bg);color:var(--text);font-family:var(--font-sans)}#app{display:flex;flex-direction:column;min-height:100vh}main{flex:1}body,.navbar,.card-surface,footer,a,button{transition:background-color .2s ease,color .2s ease,border-color .2s 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