:root{--bg1: #f6f9ff;--bg2: #dce9ff;--panel: rgba(255, 255, 255, .86);--line: #d6e1ee;--text: #152536;--muted: #4d6277;--side-bg: #f7fbff;--side-line: #d7e3f0;--side-hover: #e8f2ff;--side-active: #d5e9ff;--shadow: 0 16px 40px rgba(14, 35, 60, .12);--primary-color: #1f7a8c;--secondary-color: #132a3f}*{box-sizing:border-box}html,body,#root{min-height:100%}body{margin:0;color:var(--text);font-family:Noto Sans KR,sans-serif;background:radial-gradient(circle at 8% 8%,#fff8b5 0%,transparent 30%),radial-gradient(circle at 85% 80%,#c0f1e8 0%,transparent 32%),linear-gradient(150deg,var(--bg1),var(--bg2));line-height:1.5;-webkit-font-smoothing:antialiased}button,a{font:inherit}.sidebar-toggle{position:fixed;top:14px;left:14px;z-index:100;border:1px solid #d2deeb;background:#fff;color:#1c334a;border-radius:10px;width:42px;height:42px;font-size:20px;cursor:pointer;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center}.app-shell{display:grid;grid-template-columns:280px 1fr;min-height:100vh;transition:all .25s ease}.app-shell.sidebar-collapsed{grid-template-columns:76px 1fr}.sidebar{position:sticky;top:0;height:100vh;overflow-y:auto;background:var(--side-bg);border-right:1px solid var(--side-line);padding:70px 12px 20px;scrollbar-width:thin;scrollbar-color:var(--side-line) transparent}.side-brand{margin:0 8px 16px;font-family:Space Grotesk,sans-serif;font-weight:700;color:#1f425e;font-size:1.25rem;white-space:nowrap;overflow:hidden}.side-group{display:flex;flex-direction:column;gap:4px}.side-link,.side-button,.sub-link{border:0;width:100%;display:block;text-align:left;color:#1f3448;text-decoration:none;background:transparent;border-radius:10px;padding:12px 14px;font-size:.96rem;transition:all .2s ease;white-space:nowrap;overflow:hidden}.side-button{cursor:pointer}.side-link:hover,.side-button:hover,.sub-link:hover{background:var(--side-hover);color:var(--primary-color)}.side-link.active,.side-button.active,.sub-link.active{background:var(--side-active);font-weight:700;color:var(--primary-color)}.sub-list{display:none;padding-left:12px;border-left:2px solid var(--side-line);margin:2px 0 4px 14px}.sub-list.open{display:block}.sub-link{font-size:.88rem;padding:8px 12px}.side-divider{height:1px;background:var(--side-line);margin:12px 8px}.app-shell.sidebar-collapsed .side-brand,.app-shell.sidebar-collapsed .side-link span,.app-shell.sidebar-collapsed .sub-list,.app-shell.sidebar-collapsed .side-divider{display:none}.content{padding:32px 40px 60px;max-width:1400px;margin:0 auto;width:100%}.hero{background:linear-gradient(120deg,#102030,var(--primary-color));color:#f7fbff;border-radius:20px;padding:40px 32px;box-shadow:var(--shadow);margin-bottom:24px}.hero h1{margin:0 0 10px;font-family:Space Grotesk,sans-serif;font-size:2.2rem;line-height:1.2}.hero p{margin:0;opacity:.9;font-size:1.1rem;max-width:700px}.panel{background:var(--panel);border:1px solid rgba(255,255,255,.5);border-radius:18px;overflow:hidden;box-shadow:var(--shadow);margin-bottom:20px;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.panel h2{margin:0;padding:16px 20px;background:linear-gradient(120deg,var(--secondary-color),#2a4f75);color:#fff;font-family:Space Grotesk,sans-serif;font-size:1.15rem}.panel-body{padding:24px}.cards-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.ball-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:center;margin-bottom:20px}.ball{width:44px;height:44px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-family:Space Grotesk,sans-serif;font-weight:700;font-size:1.1rem;box-shadow:inset 0 -4px 10px #0003,0 4px 10px #0000001a;text-shadow:0 1px 2px rgba(0,0,0,.2)}.ball.bonus{border:3px solid #fff}.table-scroll{overflow-x:auto;border-radius:12px;border:1px solid var(--line);margin-bottom:10px}table{width:100%;border-collapse:collapse;background:#fff}th,td{border-bottom:1px solid var(--line);border-right:1px solid var(--line);text-align:center;padding:14px 12px;font-size:.95rem}th{background:#f1f6fb;color:#334d66;font-weight:700;border-bottom:2px solid var(--line)}tr:last-child td{border-bottom:0}tr:hover td{background-color:#f9fbff}.math-box{background:#f0f7ff;border:1px solid #c8d9eb;border-radius:12px;padding:16px;font-family:Space Grotesk,sans-serif;font-size:1rem;color:#173754;margin-bottom:16px;overflow-x:auto;white-space:nowrap}.blog-content{max-width:960px;margin:0 auto}.analysis-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:20px 0}.analysis-card{padding:20px;background:#fff;border-radius:12px;border:1px solid var(--line);box-shadow:0 4px 12px #0000000a}.analysis-card h3{margin:0 0 10px;font-size:1.05rem;color:var(--primary-color)}.analysis-card p{margin:0;font-size:.92rem;color:var(--muted);line-height:1.6}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#0000004d;z-index:25;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}@media (max-width: 1200px){.content{padding:24px 20px 40px}}@media (max-width: 1024px){.analysis-grid{grid-template-columns:repeat(2,1fr)}.hero{padding:32px 24px}.hero h1{font-size:1.8rem}}@media (max-width: 940px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;left:0;width:280px;z-index:50;transform:translate(-100%);transition:transform .3s cubic-bezier(.4,0,.2,1);box-shadow:10px 0 30px #0000001a}.app-shell.sidebar-open .sidebar{transform:translate(0)}.app-shell.sidebar-open .sidebar-overlay{display:block}.content{padding:80px 16px 30px}.cards-grid{grid-template-columns:1fr}.analysis-grid{grid-template-columns:1fr;gap:12px}.hero{padding:24px 20px;border-radius:14px}.hero h1{font-size:1.5rem}.hero p{font-size:.95rem}.panel h2{padding:12px 16px;font-size:1.05rem}.panel-body{padding:16px}.ball{width:38px;height:38px;font-size:.95rem}th,td{padding:10px 8px;font-size:.88rem}.sidebar-toggle{width:40px;height:40px;top:12px;left:12px}}@media (max-width: 480px){.hero{padding:20px 16px}.hero h1{font-size:1.35rem}.content{padding-top:70px}.ball-row{gap:8px}.ball{width:34px;height:34px;font-size:.85rem}}