:root{--bg-main: #f1f5f9;--bg-soft: #f8fafc;--bg-card: #ffffff;--primary: #6366f1;--primary-dark: #4f46e5;--success: #22c55e;--success-dark: #16a34a;--danger: #ef4444;--text-main: #111827;--text-muted: #6b7280;--border: #e5e7eb;--shadow-sm: 0 6px 16px rgba(0, 0, 0, .08);--shadow-md: 0 10px 24px rgba(0, 0, 0, .08)}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--bg-main);color:var(--text-main)}.container{max-width:1200px;margin:auto;padding:24px}.card{background:var(--bg-card);border-radius:14px;padding:18px;box-shadow:var(--shadow-sm)}.muted{color:var(--text-muted);font-size:13px}.empty-state{text-align:center;padding:32px}.app-shell{min-height:100vh;background:linear-gradient(180deg,var(--bg-soft),#eef2ff)}.app-header{padding:28px 20px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;box-shadow:0 10px 30px 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