.app{min-height:100vh;display:flex;flex-direction:column}.app-header{background:var(--color-bg-secondary);border-bottom:1px solid var(--color-border);padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}.app-header h1{font-size:1.25rem;font-weight:700;color:var(--color-primary)}.app-header nav{display:flex;gap:16px}.app-header nav a{color:var(--color-text-muted);font-size:.9rem;padding:6px 12px;border-radius:6px;transition:all .2s}.app-header nav a:hover{color:var(--color-text);background:var(--color-accent);text-decoration:none}.app-main{flex:1;padding:24px;max-width:1200px;margin:0 auto;width:100%}.app-footer{background:var(--color-bg-secondary);border-top:1px solid var(--color-border);padding:16px 24px;text-align:center;color:var(--color-text-muted);font-size:.8rem}:root{--color-bg: #1a1a2e;--color-bg-secondary: #16213e;--color-primary: #e94560;--color-accent: #0f3460;--color-text: #eaeaea;--color-text-muted: #a0a0a0;--color-border: #2a2a4a;--font-family: "Segoe UI", system-ui, -apple-system, sans-serif;--radius: 12px;--shadow: 0 4px 20px rgba(0, 0, 0, .3)}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;background-color:var(--color-bg);color:var(--color-text);font-family:var(--font-family);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh;display:flex;flex-direction:column}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}input,select,textarea{font-family:inherit}