:root{--color-primary: #2e7d32;--color-primary-dark: #1b5e20;--color-primary-light: #e8f5e9;--color-text: #1f2a1f;--color-text-muted: #5c6b5c;--color-bg: #f6f8f6;--color-surface: #ffffff;--color-border: #dbe5db;--color-danger: #c62828;--color-danger-bg: #fdecea;--radius: 10px;--shadow: 0 1px 3px rgba(0, 0, 0, .08)}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--color-bg);color:var(--color-text);line-height:1.5}.container{max-width:720px;margin:0 auto;padding:2rem 1.25rem 3rem}h1,h2,h3{line-height:1.2}button{font-family:inherit;font-size:.95rem;cursor:pointer;border:none;border-radius:var(--radius);padding:.6rem 1.25rem;background:var(--color-primary);color:#fff;transition:background .15s ease}button:hover{background:var(--color-primary-dark)}button.secondary{background:transparent;color:var(--color-primary-dark);border:1px solid var(--color-border)}button.secondary:hover{background:var(--color-primary-light)}button.danger{background:transparent;color:var(--color-danger);border:1px solid var(--color-danger-bg)}button.danger:hover{background:var(--color-danger-bg)}button:disabled{opacity:.5;cursor:not-allowed}a{color:var(--color-primary-dark)}