:root{--color-primary: #0f172a;--color-primary-light: #334155;--color-accent: #059669;--color-accent-hover: #047857;--color-accent-light: #d1fae5;--color-bg: #f8fafc;--color-surface: #ffffff;--color-text-main: #0f172a;--color-text-muted: #64748b;--color-border: #e2e8f0;--color-danger: #ef4444;--color-warning: #f59e0b;--spacing-1: .25rem;--spacing-2: .5rem;--spacing-3: .75rem;--spacing-4: 1rem;--spacing-6: 1.5rem;--spacing-8: 2rem;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--transition-fast: .2s ease}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji",Segoe UI Symbol;background-color:var(--color-bg);color:var(--color-text-main);line-height:1.5;-webkit-font-smoothing:antialiased}.container{max-width:600px;margin:0 auto;padding:var(--spacing-4);padding-bottom:80px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:var(--spacing-3) var(--spacing-4);border-radius:var(--radius-md);font-weight:600;cursor:pointer;border:none;transition:background-color var(--transition-fast);text-decoration:none;font-size:1rem}.btn-primary{background-color:var(--color-accent);color:#fff}.btn-primary:active{background-color:var(--color-accent-hover)}.btn-secondary{background-color:transparent;border:1px solid var(--color-border);color:var(--color-text-main)}.btn-icon{padding:var(--spacing-2);border-radius:50%}.card{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--spacing-4);box-shadow:--shadow-sm;border:1px solid var(--color-border);margin-bottom:var(--spacing-4)}.input{width:100%;padding:var(--spacing-3);border:1px solid var(--color-border);border-radius:var(--radius-md);margin-bottom:var(--spacing-3);font-size:1rem}.input:focus{outline:2px solid var(--color-accent);border-color:transparent}.heading{font-size:1.5rem;font-weight:700;margin-bottom:var(--spacing-4);color:var(--color-primary)}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:var(--color-surface);border-top:1px solid var(--color-border);display:flex;justify-content:space-around;padding:var(--spacing-3) 0;z-index:100;padding-bottom:env(safe-area-inset-bottom)}.nav-item{display:flex;flex-direction:column;align-items:center;color:var(--color-text-muted);text-decoration:none;font-size:.75rem;gap:4px}.nav-item.active{color:var(--color-accent)}@keyframes slideUp{0%{transform:translateY(10px);opacity:0}to{transform:translateY(0);opacity:1}}.animate-slide-up{animation:slideUp .3s ease-out forwards}