:root{--bg-start: #ffffff;--bg-mid: #f7f6f4;--bg-end: #f5f5dc;--card-bg: #ffffff;--primary: #84b584;--secondary: #c97d60;--text: #1a1512;--text-muted: #5a534d;--border: rgba(224, 218, 208, .6);--error: #b91c1c;--shadow: 0 8px 24px rgba(26, 21, 18, .08);--radius: 12px;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:var(--font);color:var(--text);background:linear-gradient(to top right,var(--bg-start) 0%,var(--bg-mid) 55%,var(--bg-end) 100%)}button,input,select{font:inherit}a{color:var(--secondary)}.app-shell{width:100%;margin:0 auto;padding:24px}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.page-title{margin:0;font-size:1.75rem;font-weight:700}.page-subtitle{margin:8px 0 0;color:var(--text-muted)}.section-title{margin:0;font-size:1.25rem;font-weight:700}.section-subtitle{margin:6px 0 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