:root{--bg:#fbf9f1;--surface:#fff;--ivory:#f4efde;--ivory-deep:#ece5ce;--border:#e8e1cc;--text:#2d2a22;--text-soft:#6f6a58;--text-faint:#a39c84;--gold:#b5934a;--gold-soft:#f0e6cb;--danger:#c0584c;--danger-soft:#f6e3e0;--success:#5c7a52;--success-soft:#e6eedf;--radius:14px;--radius-sm:9px;--shadow:0 1px 2px #463c1e0a, 0 8px 24px #463c1e0f;--shadow-sm:0 1px 3px #463c1e12;color:var(--text);font-family:Pretendard,-apple-system,BlinkMacSystemFont,Segoe UI,Apple SD Gothic Neo,Malgun Gothic,sans-serif}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;line-height:1.5}a{color:inherit;text-decoration:none}button,input,textarea,select{color:inherit;font-family:inherit;font-size:100%}.app-shell{flex-direction:column;min-height:100%;display:flex}.topbar{z-index:20;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);background:#ffffffe6;align-items:center;gap:24px;height:64px;padding:0 28px;display:flex;position:sticky;top:0}.brand{letter-spacing:-.02em;align-items:center;gap:9px;font-size:19px;font-weight:800;display:flex}.brand .dot{background:var(--gold);width:11px;height:11px;box-shadow:0 0 0 4px var(--gold-soft);border-radius:50%}.nav{gap:4px;display:flex}.nav a{border-radius:var(--radius-sm);color:var(--text-soft);padding:8px 14px;font-size:14px;font-weight:600;transition:background .15s,color .15s}.nav a:hover{background:var(--ivory);color:var(--text)}.nav a.active{background:var(--text);color:#fff}.topbar-right{align-items:center;gap:14px;margin-left:auto;display:flex}.credit-badge{background:var(--gold-soft);border:1px solid var(--ivory-deep);color:var(--gold);border-radius:999px;align-items:center;gap:7px;padding:7px 14px;font-size:14px;font-weight:700;display:flex}.user-chip{flex-direction:column;align-items:flex-end;line-height:1.25;display:flex}.user-chip 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.desc{color:var(--text-soft);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:13.5px;display:-webkit-box;overflow:hidden}.class-card .meta{color:var(--text-soft);flex-direction:column;gap:5px;font-size:13px;display:flex}.class-card .meta .row{gap:8px;display:flex}.class-card .meta .row b{color:var(--text);min-width:52px;font-weight:600}.class-card .foot{background:var(--ivory);border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding:16px 20px;display:flex}.wide-card{gap:22px;padding:22px;display:flex}.wide-card .wide-main{flex:1;min-width:0}.wide-card .wide-side{border-left:1px solid var(--border);flex-direction:column;flex-shrink:0;justify-content:center;gap:10px;width:220px;padding-left:22px;display:flex}.wide-card .wide-title{margin-top:9px;font-size:18px;font-weight:800}.wide-card .wide-desc{color:var(--text-soft);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin-top:5px;font-size:13.5px;display:-webkit-box;overflow:hidden}.wide-meta{color:var(--text-soft);flex-wrap:wrap;gap:6px 16px;margin-top:12px;font-size:13px;display:flex}.wide-timetable{color:var(--text-soft);background:var(--ivory);border-radius:8px;margin-top:10px;padding:8px 12px;font-size:12.5px}@media (width<=720px){.wide-card{flex-direction:column;gap:16px}.wide-card .wide-side{border-left:none;border-top:1px solid var(--border);width:auto;padding-top:16px;padding-left:0}}.tag{background:var(--ivory-deep);color:var(--text-soft);border-radius:999px;align-items:center;padding:3px 10px;font-size:12px;font-weight:700;display:inline-flex}.tag.gold{background:var(--gold-soft);color:var(--gold)}.tag.open{background:var(--success-soft);color:var(--success)}.tag.closed{background:var(--danger-soft);color:var(--danger)}.cost-pill{align-items:baseline;gap:4px;font-weight:800;display:inline-flex}.cost-pill .num{color:var(--gold);font-size:19px}.cost-pill .unit{color:var(--text-faint);font-size:12px}.btn{border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;border:1px solid #0000;justify-content:center;align-items:center;gap:7px;padding:10px 18px;font-size:14px;font-weight:700;transition:transform 50ms,background .15s,opacity .15s;display:inline-flex}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--text);color:#fff}.btn-primary:hover:not(:disabled){background:#44402f}.btn-gold{background:var(--gold);color:#fff}.btn-gold:hover:not(:disabled){background:#a07f36}.btn-ghost{background:var(--surface);border-color:var(--border);color:var(--text)}.btn-ghost:hover:not(:disabled){background:var(--ivory)}.btn-danger{background:var(--danger-soft);color:var(--danger)}.btn-danger:hover:not(:disabled){background:#efd2cd}.btn-sm{padding:7px 13px;font-size:13px}.btn-block{width:100%}.social-kakao{color:#191600;background:#fee500}.social-kakao:hover:not(:disabled){background:#f4d900}.social-google{border-color:var(--border);color:var(--text);background:#fff}.social-google:hover:not(:disabled){background:var(--ivory)}.divider{color:var(--text-faint);align-items:center;gap:12px;margin:18px 0;font-size:12.5px;font-weight:600;display:flex}.divider:before,.divider:after{content:"";background:var(--border);flex:1;height:1px}.field{flex-direction:column;gap:6px;margin-bottom:16px;display:flex}.field label{color:var(--text-soft);font-size:13px;font-weight:700}.field .hint{color:var(--text-faint);font-size:12px}.input,.textarea,.select{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;padding:11px 13px;font-size:14px;transition:border-color .15s,box-shadow .15s}.input:focus,.textarea:focus,.select:focus{border-color:var(--gold);box-shadow:0 0 0 3px var(--gold-soft);outline:none}.textarea{resize:vertical;min-height:88px}.form-row{grid-template-columns:1fr 1fr;gap:14px;display:grid}@media (width<=560px){.form-row{grid-template-columns:1fr}}.auth-wrap{background:radial-gradient(900px 500px at 80% -10%, var(--gold-soft), transparent), var(--bg);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.auth-card{width:100%;max-width:410px}.auth-card .card-pad{padding:32px}.auth-head{text-align:center;margin-bottom:24px}.auth-head .brand{justify-content:center;margin-bottom:8px;font-size:24px}.auth-head p{color:var(--text-soft);font-size:14px}.auth-switch{text-align:center;color:var(--text-soft);margin-top:18px;font-size:13.5px}.auth-switch a{color:var(--gold);font-weight:700}.alert{border-radius:var(--radius-sm);margin-bottom:16px;padding:11px 14px;font-size:13.5px;font-weight:600}.alert.error{background:var(--danger-soft);color:var(--danger)}.alert.success{background:var(--success-soft);color:var(--success)}.alert.info{background:var(--ivory);color:var(--text-soft);border:1px solid var(--border)}.list{flex-direction:column;display:flex}.list-row{border-bottom:1px solid var(--border);align-items:center;gap:14px;padding:14px 18px;display:flex}.list-row:last-child{border-bottom:none}.list-row .grow{flex:1;min-width:0}.list-row .primary{font-size:14.5px;font-weight:700}.list-row .secondary{color:var(--text-faint);margin-top:2px;font-size:12.5px}.amount-pos{color:var(--success);font-weight:800}.amount-neg{color:var(--danger);font-weight:800}.stat-grid{grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:26px;display:grid}@media (width<=700px){.stat-grid{grid-template-columns:1fr}}.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.stat 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24px;display:flex}.icon-btn{background:var(--ivory);cursor:pointer;width:32px;height:32px;color:var(--text-soft);border:none;border-radius:8px;font-size:16px}.icon-btn:hover{background:var(--ivory-deep)}.empty{text-align:center;color:var(--text-faint);padding:56px 20px}.empty .big{margin-bottom:12px;font-size:40px}.empty .msg{color:var(--text-soft);font-size:14.5px;font-weight:600}.center-screen{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:14px;min-height:100vh;padding:24px;display:flex}.spinner{border:3px solid var(--ivory-deep);border-top-color:var(--gold);border-radius:50%;width:30px;height:30px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.muted{color:var(--text-soft)}.flex{display:flex}.flex-between{justify-content:space-between;align-items:center;gap:12px;display:flex}.gap-8{gap:8px}.gap-12{gap:12px}.mt-8{margin-top:8px}.mt-16{margin-top:16px}.mt-24{margin-top:24px}.section-title{margin-bottom:12px;font-size:16px;font-weight:800}.public-page{flex-direction:column;min-height:100vh;display:flex}.public-header{z-index:20;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);background:#ffffffeb;justify-content:space-between;align-items:center;padding:16px 32px;display:flex;position:sticky;top:0}.public-nav{align-items:center;gap:18px;font-size:14px;font-weight:700;display:flex}.public-nav a{color:var(--text-soft)}.public-nav a:hover{color:var(--text)}.public-nav a.btn-primary{color:#fff}.hero{align-items:center;gap:48px;width:100%;max-width:1080px;margin:0 auto;padding:64px 32px;display:flex}.hero-text{flex:1;min-width:0}.hero-text h1{letter-spacing:-.03em;margin-top:14px;font-size:42px;font-weight:800;line-height:1.22}.hero-text p{color:var(--text-soft);max-width:460px;margin-top:16px;font-size:16px}.hero-cta{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}.hero-visual{flex:1;min-width:0}.hero-visual img{border-radius:var(--radius);border:1px solid var(--border);width:100%;box-shadow:var(--shadow);display:block}.hero-placeholder{aspect-ratio:4/3;border:2px dashed var(--ivory-deep);border-radius:var(--radius);background:linear-gradient(135deg, var(--gold-soft), var(--ivory));text-align:center;color:var(--text-soft);flex-direction:column;justify-content:center;align-items:center;gap:6px;padding:20px;display:flex}.hero-placeholder-icon{font-size:46px}.hero-placeholder p{font-size:15px;font-weight:800}.hero-placeholder small{color:var(--text-faint);font-size:12px}.landing-section{width:100%;max-width:1080px;margin:0 auto;padding:32px}.landing-title{text-align:center;letter-spacing:-.02em;margin-bottom:24px;font-size:24px;font-weight:800}.feature-card{text-align:center}.feature-icon{font-size:38px}.feature-card h3{margin-top:12px;font-size:17px;font-weight:800}.feature-card p{color:var(--text-soft);margin-top:8px;font-size:14px;line-height:1.6}.step-num{background:var(--text);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:42px;height:42px;font-size:18px;font-weight:800;display:inline-flex}.landing-cta{text-align:center;width:100%;max-width:1080px;margin:24px auto 0;padding:56px 32px}.landing-cta h2{letter-spacing:-.02em;font-size:26px;font-weight:800}.landing-cta p{color:var(--text-soft);margin:10px 0 22px}.public-footer{border-top:1px solid var(--border);color:var(--text-faint);justify-content:space-between;align-items:center;gap:12px;margin-top:auto;padding:26px 32px;font-size:13px;display:flex}.about-hero{text-align:center;width:100%;max-width:760px;margin:0 auto;padding:56px 32px 24px}.about-hero h1{letter-spacing:-.02em;margin-top:12px;font-size:34px;font-weight:800}.about-hero p{color:var(--text-soft);margin-top:14px;font-size:16px}.about-section{width:100%;max-width:820px;margin:0 auto;padding:22px 32px}.about-section h2{margin-bottom:12px;font-size:21px;font-weight:800}.about-section>p{color:var(--text-soft);font-size:15px;line-height:1.75}.about-list{color:var(--text-soft);padding-left:20px;font-size:15px;line-height:1.95}@media (width<=760px){.hero{flex-direction:column;gap:32px;padding:40px 22px}.hero-text h1{font-size:31px}.public-header{padding:14px 20px}}