.sfc-container{max-width:880px;margin:24px auto;padding:16px;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Apple SD Gothic Neo","Noto Sans KR","맑은 고딕","Malgun Gothic",sans-serif;color:#111827;background:#fff}.sfc-container[data-theme=dark]{background:#0b0f17;color:#e5e7eb}.sfc-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.sfc-header h1{font-size:22px;margin:0}.sfc-actions{display:flex;gap:8px}.sfc-note{margin-bottom:12px;border:1px solid #e5e7eb;border-radius:10px;padding:10px 12px;background:#fafafa}.sfc-container[data-theme=dark] .sfc-note{border-color:#1f2937;background:#0f172a}.sfc-note summary{cursor:pointer;font-weight:600;margin-bottom:6px}.sfc-note ul{margin:6px 0 0 18px;padding:0}.sfc-card{border:1px solid #e5e7eb;border-radius:14px;padding:16px;background:#fff;margin-bottom:14px;box-shadow:0 1px 2px rgba(0,0,0,.03)}.sfc-container[data-theme=dark] .sfc-card{border-color:#1f2937;background:#0f172a;box-shadow:none}.sfc-card-title{margin:0 0 12px;font-size:18px}.sfc-grid{display:flex;flex-wrap:wrap;gap:12px}.sfc-grid .sfc-field{flex:1 1 48%;min-width:260px}@media (max-width:680px){.sfc-grid .sfc-field{flex-basis:100%;min-width:0}}.sfc-field label{display:block;font-size:14px;margin-bottom:6px}.sfc-field .sfc-help{display:block;font-size:12px;opacity:.8;margin-top:4px}.sfc-field-inline{display:flex;flex-wrap:wrap;gap:12px}.sfc-field-inline>div{flex:1 1 48%;min-width:200px}@media (max-width:680px){.sfc-field-inline>div{flex-basis:100%;min-width:0}}.sfc-input{width:100%;padding:10px 12px;border-radius:10px;border:1px solid #d1d5db;background:#fff;color:#111827;font-size:15px;outline:none}.sfc-input:focus{border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.15)}.sfc-container[data-theme=dark] .sfc-input{background:#0b1220;color:#e5e7eb;border-color:#334155}.sfc-container[data-theme=dark] .sfc-input:focus{border-color:#60a5fa;box-shadow:0 0 0 3px rgba(96,165,250,.18)}.sfc-btn{padding:10px 14px;border-radius:10px;border:1px solid #1f2937;background:#111827;color:#fff;cursor:pointer;font-size:14px}.sfc-btn:hover{opacity:.96}.sfc-btn:active{transform:translateY(.5px)}.sfc-container[data-theme=dark] .sfc-btn{border-color:#374151;background:#1f2937;color:#e5e7eb}.sfc-btn-ghost{background:0 0;color:inherit;border:1px solid #cbd5e1}.sfc-container[data-theme=dark] .sfc-btn-ghost{border-color:#334155}.sfc-results{display:block}.sfc-row{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 0;font-size:15px}.sfc-row strong{font-weight:700}.sfc-em strong{font-size:18px}.sfc-sep{border:none;border-top:1px dashed #d1d5db;margin:8px 0}.sfc-container[data-theme=dark] .sfc-sep{border-top-color:#334155}.sfc-profit{color:#065f46}.sfc-loss{color:#b91c1c}.sfc-cta{margin-top:10px}.sfc-disclaimer{margin-top:8px;font-size:12px;opacity:.8}.sfc-toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#111827;color:#fff;padding:10px 14px;border-radius:999px;border:1px solid #1f2937;box-shadow:0 6px 20px rgba(0,0,0,.25);z-index:9999}.sfc-container[data-theme=dark] .sfc-toast{background:#1f2937;border-color:#374151}