*{margin:0;padding:0;box-sizing:border-box}body{font-family:Pretendard,"Noto Sans KR",-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;background:var(--color-bg);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.login-container{background:var(--color-surface);border-radius:var(--radius-card);box-shadow:0 4px 24px rgba(0,0,0,.08);width:100%;max-width:440px;padding:48px 40px 40px}.login-header{text-align:center;margin-bottom:36px}.login-logo{width:60px;height:60px;background:var(--color-primary);border-radius:var(--radius-card);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;box-shadow:0 4px 12px rgba(230,15,29,.3)}.login-logo i,.login-logo svg{width:32px;height:32px;color:#fff}.login-title{font-size:22px;font-weight:700;color:var(--text-primary);margin-bottom:8px}.login-subtitle{font-size:14px;color:var(--text-secondary)}.login-form{margin-bottom:24px}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;font-size:14px;font-weight:500;color:var(--text-secondary)}.form-input{width:100%;padding:12px 16px;border:1px solid var(--border-subtle);border-radius:var(--radius-input);font-size:15px;background:var(--color-neutral-100);color:var(--text-primary);transition:.2s}.form-input::placeholder{color:var(--text-placeholder)}.form-input:focus{outline:0;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(230,15,29,.12);background:var(--color-surface)}.form-checkbox{display:flex;align-items:center;gap:8px;margin-bottom:24px}.form-checkbox input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--color-primary)}.form-checkbox label{font-size:14px;color:var(--text-primary);cursor:pointer}.btn-login{width:100%;padding:14px;background:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-button);font-size:16px;font-weight:600;cursor:pointer;transition:.2s;box-shadow:0 4px 12px rgba(230,15,29,.25)}.btn-login:hover{background:var(--primary-hover);box-shadow:0 6px 16px rgba(230,15,29,.35)}.btn-login:active{background:var(--primary-active);transform:scale(.98)}.btn-login:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}.login-divider{text-align:center;margin:24px 0;position:relative}.login-divider::before{content:'';position:absolute;left:0;right:0;top:50%;height:1px;background:var(--border-subtle)}.login-divider span{background:var(--color-surface);padding:0 16px;position:relative;font-size:13px;color:var(--text-secondary)}.btn-dev-login{width:100%;padding:12px;background:0 0;color:var(--text-primary);border:1px solid var(--border-subtle);border-radius:var(--radius-button);font-size:14px;font-weight:500;cursor:pointer;transition:.2s;display:flex;align-items:center;justify-content:center;gap:8px}.btn-dev-login:hover{border-color:var(--color-primary);color:var(--color-primary);background:rgba(230,15,29,.05)}.btn-dev-login svg{width:16px;height:16px}.alert{padding:12px 16px;border-radius:var(--radius-input);margin-bottom:20px;font-size:14px;border:1px solid}.alert-error{background:rgba(255,45,85,.08);color:#d32f2f;border-color:rgba(255,45,85,.3)}.alert-success{background:rgba(52,199,89,.08);color:#2e7d32;border-color:rgba(52,199,89,.3)}.login-footer{text-align:center;margin-top:24px;padding-top:24px;border-top:1px solid var(--border-subtle)}.login-footer a{color:var(--text-secondary);text-decoration:none;font-size:14px;transition:color .2s}.login-footer a:hover{color:var(--color-primary)}.loading-spinner{display:inline-block;width:16px;height:16px;border:2px solid #fff;border-top-color:transparent;border-radius:50%;animation:.6s linear infinite spin;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}