:root{--background: #f0f0f0;--foreground: #1a1a1a;--border: #ccc;--card: #ffffff;--card-foreground: #1a1a1a;--primary: #2563eb;--primary-foreground: #ffffff;--secondary: #fbbf24;--secondary-foreground: #1a1a1a;--accent: #22c55e;--accent-foreground: #ffffff;--muted: #6b7280;--muted-foreground: #6b7280;--destructive: #dc2626;--destructive-foreground: #ffffff;--sidebar: #e5e7eb;--sidebar-foreground: #1a1a1a;--sidebar-primary: #2563eb;--sidebar-primary-foreground: #ffffff;--sidebar-accent: #d1d5db;--input: #ffffff;--ring: #2563eb;--radius: .75rem;--radius-sm: .5rem;--radius-md: .75rem;--radius-lg: 1rem;--radius-xl: 1.25rem;--shadow-xs: 0 1px 3px rgba(0, 0, 0, .08);--shadow-sm: 0 2px 8px rgba(0, 0, 0, .1);--shadow-md: 0 4px 12px rgba(0, 0, 0, .12);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .12);--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--font-sans: "Nunito", "Comic Sans MS", "Chalkboard SE", system-ui, sans-serif;--transition: .18s ease;--touch-min: 44px}*,*:before,*:after{box-sizing:border-box}html{font-size:16px;-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font-sans);background:var(--background) url(/background.webp) repeat;color:var(--foreground);min-height:100vh;-webkit-font-smoothing:antialiased;font-weight:600;line-height:1.5}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:var(--touch-min);padding:var(--spacing-sm) var(--spacing-lg);font-size:1rem;font-weight:700;border-radius:var(--radius-lg);border:2px solid rgba(0,0,0,.15);cursor:pointer;text-decoration:none;box-shadow:0 3px #00000026}.btn:active{transform:translateY(2px);box-shadow:0 1px #0003}.btn:focus-visible{outline:none;box-shadow:0 0 0 3px var(--ring)}.btn-primary{background:var(--primary);color:var(--primary-foreground)}.btn-primary:hover{filter:brightness(1.08)}.btn-secondary{background:var(--secondary);color:var(--secondary-foreground)}.btn-secondary:hover{filter:brightness(1.05)}.btn-outline{background:var(--card);color:var(--primary);border:2px solid var(--primary);box-shadow:0 2px #0000001a}.btn-outline:hover{background:#e0e7ff}.file-label{display:inline-flex;align-items:center;justify-content:center;margin:0;cursor:pointer}