:root{--color-primary:#3d7b6f;--color-primary-dark:#2c5e54;--color-primary-light:#5a9e8f;--color-primary-surface:#e8f3f0;--color-accent:#e8856c;--color-bg:#f7f5f2;--color-surface:#fff;--color-surface-hover:#faf9f7;--color-text-primary:#2a2d2e;--color-text-secondary:#5a6367;--color-text-muted:#8d9599;--color-text-disabled:#b8bec1;--color-border:#e5e2dd;--color-border-light:#f0ede8;--color-success:#3d7b6f;--color-warning:#c4840d;--color-error:#d4534b;--color-error-surface:#fdf1f0;--font-sans:"Pretendard",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;--font-serif:"Noto Serif KR",Georgia,serif;--text-xs:0.75rem;--text-sm:0.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--text-4xl:2.25rem;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--shadow-sm:0 1px 3px rgba(42,45,46,.05),0 1px 2px rgba(61,123,111,.04);--shadow-md:0 4px 12px rgba(42,45,46,.07),0 2px 6px rgba(61,123,111,.05);--shadow-lg:0 8px 28px rgba(42,45,46,.09),0 4px 12px rgba(61,123,111,.06);--shadow-xl:0 20px 60px rgba(42,45,46,.11),0 8px 24px rgba(61,123,111,.08);--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--transition-fast:150ms ease;--transition-base:250ms ease;--transition-slow:400ms ease}*,:after,:before{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);color:var(--color-text-primary);background-color:var(--color-bg);word-break:keep-all;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.auth-container:after{content:"";position:fixed;inset:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");pointer-events:none;z-index:0}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:var(--space-5);background-color:#ede9e3;background-image:radial-gradient(ellipse 90% 70% at 10% 5%,rgba(61,123,111,.2) 0,transparent 58%),radial-gradient(ellipse 65% 80% at 90% 90%,hsla(12,73%,67%,.16) 0,transparent 55%),radial-gradient(ellipse 55% 55% at 55% 40%,rgba(90,158,143,.11) 0,transparent 50%),radial-gradient(ellipse 40% 50% at 20% 80%,hsla(36,24%,96%,.6) 0,transparent 45%),radial-gradient(ellipse 70% 40% at 75% 15%,rgba(232,243,240,.4) 0,transparent 50%)}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.auth-card{background:hsla(0,0%,100%,.92);border-radius:20px;padding:52px 48px 44px;width:100%;max-width:460px;box-shadow:0 16px 48px rgba(44,94,84,.08),0 4px 16px rgba(44,94,84,.04),inset 0 1px 0 hsla(0,0%,100%,.8);text-align:center;border:1px solid hsla(0,0%,100%,.6);position:relative;overflow:hidden;z-index:1;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);animation:fadeSlideUp .6s cubic-bezier(.16,1,.3,1) forwards}.auth-card:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--color-primary) 0,var(--color-primary-light) 50%,var(--color-accent) 100%);border-radius:20px 20px 0 0}.auth-logo{font-size:3rem;margin-bottom:var(--space-3);line-height:1;display:block;filter:drop-shadow(0 2px 6px rgba(61,123,111,.2));animation:fadeSlideUp .5s cubic-bezier(.16,1,.3,1) .1s both}.auth-title{font-size:var(--text-2xl);font-weight:800;color:var(--color-primary-dark);margin-bottom:var(--space-2);letter-spacing:-.5px;animation:fadeSlideUp .5s cubic-bezier(.16,1,.3,1) .15s both}.auth-subtitle{font-size:var(--text-sm);color:var(--color-text-muted);margin-bottom:var(--space-8);line-height:1.65;animation:fadeSlideUp .5s cubic-bezier(.16,1,.3,1) .2s both}.auth-form{display:flex;flex-direction:column;gap:var(--space-4);animation:fadeSlideUp .5s cubic-bezier(.16,1,.3,1) .25s both}.auth-field{text-align:left}.auth-field label{display:block;font-size:.7rem;font-weight:600;color:var(--color-text-muted);margin-bottom:var(--space-2);letter-spacing:.08em;text-transform:uppercase}.auth-field input{width:100%;height:52px;padding:0 var(--space-4);border:1.5px solid var(--color-border);border-radius:12px;font-size:var(--text-base);font-family:var(--font-sans);color:var(--color-text-primary);background-color:var(--color-surface);box-shadow:inset 0 2px 4px rgba(0,0,0,.02);transition:all .3s cubic-bezier(.16,1,.3,1);outline:none}.auth-field input::placeholder{color:var(--color-text-disabled)}.auth-field input:hover{border-color:#cdc9c3}.auth-field input:focus,.auth-field input:focus-visible{border-color:var(--color-primary);box-shadow:inset 0 2px 4px rgba(0,0,0,.02),0 0 0 3px rgba(61,123,111,.12);background-color:#fcfefe;transform:translateY(-1px)}.auth-error{font-size:var(--text-sm);color:var(--color-error);text-align:left;padding:var(--space-3) var(--space-4);background:var(--color-error-surface);border-radius:var(--radius-md);border-left:3px solid var(--color-error);line-height:1.5}.auth-btn{height:52px;padding:0 var(--space-4);background:var(--color-primary);color:#fff;border:none;border-radius:12px;font-size:var(--text-base);font-weight:600;font-family:var(--font-sans);cursor:pointer;letter-spacing:.01em;margin-top:var(--space-2);box-shadow:0 4px 14px rgba(61,123,111,.3);transition:all .3s cubic-bezier(.34,1.56,.64,1)}.auth-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(61,123,111,.25)}.auth-btn:active,.auth-btn:hover{background:var(--color-primary-dark)}.auth-btn:active{transform:translateY(0) scale(.98);box-shadow:0 2px 8px rgba(61,123,111,.22);transition-duration:.1s}.auth-btn:disabled{opacity:.52;cursor:not-allowed;transform:none;box-shadow:none}.auth-footer{margin-top:var(--space-6);font-size:var(--text-sm);color:var(--color-text-muted);animation:fadeSlideUp .5s cubic-bezier(.16,1,.3,1) .35s both}.auth-footer a{color:var(--color-primary);font-weight:600;text-decoration:none;transition:color var(--transition-fast)}.auth-footer a:hover{color:var(--color-primary-dark);text-decoration:underline;text-underline-offset:3px}.auth-link{margin-top:var(--space-6);font-size:var(--text-sm);color:var(--color-text-muted)}.auth-link a{color:var(--color-primary);font-weight:600;text-decoration:none;transition:color var(--transition-fast)}.auth-link a:hover{color:var(--color-primary-dark);text-decoration:underline;text-underline-offset:3px}@media (max-width:480px){.auth-card{padding:var(--space-8) var(--space-6) var(--space-8);border-radius:var(--radius-lg)}.auth-title{font-size:var(--text-xl)}.auth-logo{font-size:2.5rem}}